welspun internship , vapi
DESCRIPTION
textile internship presentation on welspun india ltd vapi.TRANSCRIPT
TEXTILE INTERNSHIP
SUBMITTED BY:PRIYANKA VISHNOI
SHIVANGI B.F.TECH
SEM V2011-2015
VAPI
TERRY TOWEL DIVISION
INTRODUCTION
• The textile internship has been completed in Welspun India Limited, Vapi, Gujarat.
• The duration of the internship was of three weeks where we had covered nine different departments of textile processing.
• Familiarized us with the various aspects of a Textile Processing Unit starting from its Organizational hierarchy to the functionality of the various departments.
• Introduced us to the various brands of machineries available for carrying out the different textile processes to meet global standards.
OBJECTIVES The textile internship was carried out to develop a clear
understanding about the following:
• Flow process sequence and Technical details on machine particulars of weaving, dyeing, printing, finishing, laboratory etc.
• Particulars of raw material, intermediate products and final product, process details, product quality parameters.
• Particulars of the manufacturing environment.• Human resource management.• Productivity analysis for various processes.
The internship helps us to:
• To understand the structural and functional constituents of the industry.
• To adapt to real industrial situations which equips us for decision making in a realistic environment.
• To strengthen the relationship between the industry and students.
COMPANY AND LEADERSHIP
•Global leadership Largest terry towel producer in Asia. World’s 3rd best and 4th largest terry towel producer. Largest specialty polyester filament yarn producer in India. Acquired 85% of Christy – UKs leading towel manufacturer & sole
supplier to Wimbledon. 80-90 % of products are exported.
•Overview Incorporated in January 1985 Fully integrated Home Textile Manufacturer-from spinning to finishing. Manufacturing facilities at Vapi and Anjar in Gujarat. Ranked 1st among Home Textile Suppliers in the US (Source: Home
Textile Today) Largest vertically integrated manufacturer of towels in Asia Supplier to 14 of the top 30 global retailers - Walmart, Target,
J C Penney, Kohl’s, Macy’s, etc. Distribution network in over 32 countries including U.S.A., U.K, Europe,
Canada and Australia
COMPANY PROFILE
1st June,1993- Establishment of textile unit at Vapi.Chairman and Managing Director(Welspun Group): Shri.B.K.Goenka.Managing Director(Welspun Global Brands Ltd) : Mrs. Dipali Goenka
WELSPUN INDIA LIMITED, VAPI
WELSPUN’s VISION
We aim to emerge as a global leader preferred by every home serve...with passion grow....@ speed innovate.....with quality excel...with ethics Delighting all stakeholders..... We are...WELSPUN WELSPUN’s MISSION
We endeavor to reach a leadership position in each Segment / Sector of our Product / Service. We are committed to satisfy our customers by providing best quality and service, which gives the highest value for money. We believe that employees are our most important asset through which we can reach the top in each category of our Product / Service. Therefore, we will emphasize on their continuous improvement through upgrading relevant knowledge and training. We commit ourselves to continuous growth, so as to fulfill the aspirations of our Customers, Employees and Shareholders.
CUSTOMERSCategories Global Clients
Clubs CostcoSam’s Club
Mass MerchantsWalmartTargetKohl’s
JCpenny
Discount StoresTjmaxx
RossK-martSears
Speciality StoresLNTBBBBelk
Departmental Stores
DillardsFEdeatedMacy’s
FortunOff’sIKEA
Brands Tommy HilfigerNauticaUmbra
SheridanManufacturer/
ImporterSprings
Own Brands Welhome
Welspun IndiaWelspun USA
•Terry towels are woven pieces of fabric either cotton or cotton-polyester that are used to absorb moisture on the body after bathing. • Terry towels are generally woven with a loop or pile that is soft and absorbent and is thus used to wick the water away from the body. • Most towels have a two selvage edges or finished woven edges along the sides and are hemmed (cut and sewn down) at the top and bottom. • The basic structure of towel is divided into these main parts:
Plain Hem Terry Bar Body Border Selvedge
TERRY TOWEL
SIZE OF TOWEL CATEGORY OF TOWEL
33 X 33 WASH TOWEL
30 X 30 WASH TOWEL
15 X 21 GLOVES
41 X 21 HAND TOWEL
40 X 76 HAND TOWEL
50 X 100 HAND TOWEL
60 X 110 BATH TOWEL
60 X 100 BATH TOWEL
70 X 140 BATH TOWEL
76 X 132 BATH TOWEL
76 X 142 BATH TOWEL
80 X 170 BATH SHEET
100 X 150 BATH SHEET
90 X 178 BATH SHEET
80 X 176 BEACH TOWEL
74 X 152 BEACH TOWEL
50 X 90 BATH MAT
50 X 80 BATH MAT
CATEGORIES OF TOWEL
Process Flow of Welspun India Limited
1. BUYER
'S REQUIREME
NT
•At first the buyer sends his requirement for towel according to feel, look and absorbency. He also specifies the towel design and dimensions.
2. PRODUCT
DEVELOPME
NT
•Nearly 30 pieces are developed as per the buyer's requirement by the product development department. Out of these 6 pieces are sent to the buyer for approval.
3. COMMENT SENT
BY BUYER
•The buyer may approve the pieces sent to him or may send comments ask for some changes. If some changes are asked for then the towels are re-developed and again send to the buyer.
4. SHADE SENT
BY BUYER
•If the buyer is satisfied with the above parameters then it sends the shade of the towel as per his requirement
5. LAB DIP
•The product development department develops swatches of the shade send by the buyer and also 2 or 3 more shades which is very near to required shade and send to the buyer.
6. SHAD
E APPROVAL
•The buyer then approves the shade he wants.
7. PRE-
PRODUCTION
SAMPLE
SENT
•The Product development department develops nearly 100 –200 pieces of towels as per the buyers‟ specifications in the approved shade. Out of these 12 –20 pieces are sent to the buyer.
8. BUYE
R'S APPROVAL
•The buyer approves the towel which meets his standards and this towel serve as the standard towel for reference between the buyer and the manufacturer.
9. PURCHASE ORDE
R
•The buyer sends the bulk order in the form of purchase order to the Head Office in Mumbai.
10. SALES ORDE
R
•The Head Office in Mumbai prepares and give the sales order to the PPC department of the plant through the plant merchandiser.
11. PRODUCTION
PLANNING
•As per the sales order the PPC makes the production plan along with the material requirement plan.
12. MATERIAL PROCUREMEN
T
•A purchase order is generated for the required yarns and trims and sent to the suppliers.
13. WEAVING ORDE
R
•Production order is given to the weaving department.
14. WEAVING
•Weaving happens as per the weaving plan.
15. PROCESSIN
G
•Processing takes place as per the processing plan.
16. FINISHING
•Finishing takes place as per requirement
17. TQM
•Final inspection is done by TQM
18. SHIPMEN
T•Dispatch is done
Time Taken For The Different Processes
NAME OF THE PROCESS TIME
Sample approval (for new orders) 15 days
Material procurement 15 days
Weaving 15 days
Processing and Cut & Sew 10 days
Inspection & dispatch (also kept as a buffer period) 5 days
Note: It must be noted the above stated time period is taken ideal but it is subject to change depending upon design features, raw materials availability and other buyer’s specifications. The timings are also given keeping in mind the average lots of orders fulfilled and delivered and may change as per the quantity of lot as well.
PRODUCT DEVELOPMENT
Product Development Department
• Responsible for developing the samples for the buyers as been specified.
• The sampling process is as follows: Firstly 6 of the Fit samples are sent of any shade for the approval of
feel, look and absorbency.
Then after the corrections are made if required and approval of the fit sample, shade is sent by the buyer.
Then a lab dip is done and the sample pieces of 5*5 inches of the nearest shades to the one sent by the buyer are sent for shade approval. This number is generally 4-5.
Then the preproduction samples of the desired look, shade, feel and trims are sent to the buyer for approval.
After the corrections are made if required and approval is done, the size set samples i.e. all the required sizes of the same towel are sent to the buyer if desired by the buyer.
Then the bulk order is sent by the buyer after which the product development department issues the order to the production planning and control department for the bulk production.
PRODUCTION PLANNING AND
CONTROL
Production Planning And Control Department
(PPC)• The role of the production planning and control (PPC) department starts after the approval of the samples has been done and the bulk production has to be taken care of.
• The main objectives of PPC department are:
Making a plan to be implemented to fulfill the buyer’s orders.
To coordinate with the merchandising department (Head office) to deal with the orders properly.
Coordinate with the production department for proper implementation and control over the orders.
To coordinate with the grey fabric department for the issue of correct lot of fabric to the processing department on time.
I. Sales OrderII. Material
Requirement Plan (MRP)
III. Production
Plan
IV. Dispatch Plan
I. Sales Order
• Sales order refers to the order placed by the buyer.
• The sales department issues a standard sales order.
• The planning in sales order leads to complete information from production of shades and packing information including raw material specifications.
• A particular sales order gives following basic information: Product quantity Product quality specification.
II. Material Requirement Plan (MRP)
•Once the sales order is received, the PPC department estimates, calculates and decides the type, quality and quantity of the required materials for the fulfillment of the order.
•MRP results in an independent/dependent requirement at each level of the process flow of the production.
III. Production Plan
The production planning refers to the planning for the material specification thatmeets the buyer’s requirement at each level of production. This plan has 4 major plans as its main production line plans. They are as follows:
Production Plan
Spinning Plan
Weaving Plan
Processing Plan
Cut & Sew Plan
IV. Dispatch PlanTaking in consideration aforesaid steps, a planned dispatch date is calculated, this planned dispatch date is against the required dispatch date
SPINNING
Spinning Department
• The spinning division serves as the first and one of the most crucial divisions in any textile industry.
• In this unit of 37235 spindles capacity, the raw fibre is converted (spun) into yarns through a series of processes.
• The main fibre spun in this unit is cotton and its blends along with some other special fibres that include polyester, modal, bamboo, static, etc.
• The cotton is mainly blended with polyester in the ratio depending on the end use and requirement.
• Capacity of the spinning division is approximately 55-60 tons per day.
• There are mainly two types of spinning processes that are performed:
Ring Spinning Open end Spinning
Types of Fibre Price Range (Rs. Per Kg)
Procured From Used in
Shankar – 6 70-75 Gujarat Towels, Rugs
Shankar – 4 57-63 Gujarat Towels
Oganic Cotton 65-70 Maharashtra,Orissa TowelsPima 114-118 USA Towels
Egyptian Giza 102-106 Egypt Towels
Wool Noils 70-75 Imported Towels, Rugs
PVA 144-148 Imported Towels, RugsBamboo 148-152 China Towels
Fibre Procurement
• Other types of fibres include Acrylic, LRA, Viscose, Nylon, and Banana etc.
• Out of the all varieties of cotton only Pima and Egyptian variety is imported.
• The fibre is usually procured as per the buyer’s specification in terms of candies where one candy equals 355.62 kg.
• The fibre usually arrives in bales of 160 kg each and stored in a godown having capacity of 75000 bales.
• The bales of cotton that are to be spun are then taken from the godown to the spinning unit with the help of the fork lift.
Flow Chart For Yarn Manufacturing Process
Marketing and PPC TT
Marketing and PPC TT
Production Planning SPGProduction
Planning SPGEquipment
SparesEquipment
Spares
Raw Meterial (Cotton)
Raw Meterial (Cotton)
PurchasePurchase
Blow RoomBlow Room
CardingCarding
Breaker DrawingBreaker Drawing
CombingCombing
UniLapUniLap
CombersCombers
Finisher DrawingFinisher Drawing
YES NO (Carded)
SPINNING PLAN
•In time production of yarn with right quality.
•Ensure that fibre procurement is done on time.
•Fibre requisition is done well in advance in case of blends.
•Fibre requisition should be made taking care of the available stock, processed waste and anticipated rejection. Procedure •Fibre requisition.•Fibre to yarn production.•Delivery of yarn to weaving or processing at Vapi unit as the case may be.
BLOW ROOM
The fiber procured has to undergo a sequence of operations prior to spinning for opening of the fibers and cleaning of the same for trash removal so that the fibers can be spun into yarns. The blow room has lines of operation, which areindependent to each other. They are: - 1. Blow Room Process for Pure cotton spinning2. Blow Room Process for Cotton Blends
CARDING
•After the blowroom activity comes to an end, the cotton fiber gets ready for the first sliver formation through the carding process.•Carding is the most important process which helps
to open the flocks to individual fibers,
cleaning up the impurities,
removing the neps, align the fibers etc,
to achieve the basic yarn quality and better efficiencies in further spinning processes.
•Higher the production, the more sensitive becomes the carding operation and greater the danger of a negative influence on quality.
BREAKER DRAWING
• The cans filled with sliver are then passed on to the breaker draw frames from the carding machines.• Here, sliver from 6 of these cans are doubled into 1 can. • Hence, the output sliver is more compact, fine and ready to go into the combing process.
LAP FORMATION •After the doubling process has been done, output cans from the breaker draw frames are combined together to form laps for the combing process. •4 calendar rollers and large lap rollers allow for faultless batt structure, and ensure a secure and optimal lap construction.• The regulated automatic lap loading safeguards the ideal pressure of the lap on the lap rollers during the complete build-up cycle.
COMBING
• After the laps are produced the cotton is then combed. •Combing is required to produce fine yarns through an additional straightening in this operation, fine toothed combs continues straightening the fibers until they are arranged in high degree of parallelism. •In this process the short fibers namely noils are removed. •The output that comes out of the combing machine is known as combed sliver or combed cotton which is very fine, smooth, strong and used to produce more serviceable cotton fabrics.
FINISHER DRAWING • The combed slivers are then combined and drawn to form the final condensed sliver that is to be taken to the speed frame where the first roving yarn is made.• The combination of several slivers is known as drawing. • This process eliminates irregularities that would cause too much variation if the slivers would put through singly.• 8 of the combed slivers are combined together to form 1 condensed sliver there by producing longer and thinner slivers.
(Contd..)
Finisher DrawingFinisher Drawing
Ring SpunRing Spun
Speed FrameSpeed Frame
Ring SpinningRing Spinning
Open EndOpen End
Auto ConersAuto Coners
TFOTFO
Assembly WindingAssembly Winding TFOTFO Xorella Yarn ConditioningXorella Yarn Conditioning
Packing in Cartons or PalletsPacking in Cartons or Pallets
StorageStorage
Dispatch to TT and Market
Dispatch to TT and Market
YES NO
YES NO
FINISHER DRAWING • The combed slivers are then combined and drawn to form the final condensed sliver that is to be taken to the speed frame where the first roving yarn is made.• The combination of several slivers is known as drawing. • This process eliminates irregularities that would cause too much variation if the slivers would put through singly.• 8 of the combed slivers are combined together to form 1 condensed sliver there by producing longer and thinner slivers.
SPEED FRAME • The condensed slivers which have been obtained from the finisher draw frames are fed directly from the cans each of capacity 20 kg to the drafting system of the speed frame through the creel to the feed guide. •Each speed frame roves yarn to 120 bobbins at a time from 120 respective cans. •The main objective of the roving process is to give the first basic twist to the sliver to hold the short slivers together and the resulting product.
RING FRAME SPINNING
• As the roving yarn is fed it passes from a set of rollers i.e. the drafting system where the rollers move at progressively higher speeds. • The top rubber rollers and the bottom steel rollers constitute the drafting system.• Then the yarn goes to the yarn guide through the nip roller at the front. •The yarn is wound on the spindle which rotates at a high speed which is driven by the spindle drive.
AUTO CONERS • Conversion of small spindles to required size- cones • Waxing of the yarn • Re-tensioning of the yarn to avoid tension variations • Splicing as and when required to join the two ends of spindles • Cleaning of the yarn
OPEN END A process of spinning which is extremely fast and is best suitable for coarser yarns for the use in denims, towels, carpets etc is Open End spinning or Rotor spinning.
YARN CONDITIONING •A maximum of 570 cones are taken to a cylindrical chamber i.e. Contexxor Compact xorella machine in which it is provided with 65 degree celsius temperature with almost 90% vacuum application so that the yarn is conditioned and attains moisture gaining capacity.
•This process also increases the durability of the yarn.
YARN PACKAGING •The packages of yarns are made as per the buyers specification or are generally made in the packages (cones or cheeses) of 1.5kg ,1.89 kg,2.8 kg for ring spun yarns andpackages of 2.5kg,3kg and 3.7 kg packages for open end yarns. •The conditioned yarn isthen packed in two ways:
Carton packing Pallet packing
Blow Room
The fiber procured has to undergo a sequence of operations prior to spinning for opening of the fibers and cleaning of the same for trash removal so that the fibers can be spun into yarns. The blow room has lines of operation, which are independent to each other. They are: -
Blow Room Process for Pure cotton spinning Blow Room Process for Cotton Blends
Look alike model of the Blow RoomLook alike model of the Blow Room
For Pure Cotton Spinning:
1. Automatic Bale Opening And Mixing
Machine used: Trutzschler Blendomat Bdt 019
• The bales of cotton are taken from godown to the blow room and fed to the automatic Blendomat machine.
• It takes lay downs of up to 27 bales of raw material at a time in two bale groups on each side of the machine.
• The swivelling take-off tower on its travelling chassis has an optional device that scans the bale contours, thus ensuring uniform take-off.
• The machine then transports the material to the other machines for further processes through the channel of material transportation and suction tubes.
2. Automatic Dust Removal, Gravity Trap And Metal Detection• After the cotton has been fed by the blendomat machine into the aero feed suction
pipes, the cotton first enters the dust cleaning chambers where the dust is removed by the help of the air suction fans and collected separately in the impurity bags.
• Then it enters the gravity trap where various foreign materials such as wood pieces, pins, stones, etc are removed i.e. the impurities that are heavier than the cotton fiber are removed in the gravity trap.
• Then the cotton is passed through a metal detector. The metal shield reliably detects and diverts any metallic particle – as small as 2 millimeters, at velocities of up to 33 meters per second.
• After the fiber is passed through the metal detector, it is transported to the ASTA machine where it gets automatically cleaned as well as opened.
3. Automatic Cleaning And MixingMachine used: Asta Machine• The material fed to the ASTA is picked up by special pins and passed five times
mechanically over the cleaning grid. • During the process, the raw material is guided over the integrated dust-extracting
filter where dust, fiber fragments and fine trash particles are stripped off mechanically.
• It has Continuous throughput without nipping and the use of grid knives that results in gentle cleaning.
• With the flexibility of easy on-going adjustment and multiple assortment operation possible, it gives high cleaning performance and intensive dust extraction that owes to have optimum material utilization.
4. Further Mixing And OpeningMachine Used:Trutzschler Multimixer • The cotton fiber from the ASTA is then passed on this machine for automatic
mixing and opening of the cotton fiber. • The unique three-point blending process enables converting of cotton into a
homogeneous blend of tufts with only a single machine. This saves space. The material is fed simultaneously and uniformly to the 8 chambers. The dust in the conveying airis systematically separated from the fibers and sent to the filter unit.
5. Blending And CleaningMachine used: Dustex Machine
• The fiber is then passed on to the Dustex DX- 385,which not only blends and opens the fabric but also does the final cleaning before the fiber is passed on the carding machines.
• The Dustex DX- 385 is a fine cleanerfor natural fibers. Its maximum production capacity is 600 kg/hour.
• It can be used without any additional components as a feed machine for cards. • The single-cylinder concept permits a wide operating range with no damage to the fibers
or excessive loss of good fibers.• With the Dustex cleaning process the blowroom activity of a cotton lot comes to an end.• Around 2 – 3 % impurities from the cotton lot is removed during the blowroom activity.
After this process, the cotton is passed into the carding system where it isfurther cleaned and the first sliver of cotton is formed
For Pure Cotton Blends:For the manufacture of blended yarns, the required bales of cotton and other fibers are opened and hand mixed as done in the pure cotton spinning. But now the process will vary and the further processes are as follows:
6. Mixing Bale Opener (MBO)• The hand mixed and open fibers of required type are fed to the throat part of the MBO in a
pre-calculated proportion as per the required kind of yarn. The working width of the machine is 1000 mm and its capacity is 250 kg/hr.
7. Blending Machine• The blending machine is used to blend the fibers in homogeneous mixture and least
impurities with at least 2 and almost 8 kinds of materials can be blended and can be distributed to different carding trained each with different blend ratio.
Now the fiber coming out of this machine is directly fed to the carding machines for continuous process.
Carding• After the blowroom activity comes to an end, the cotton fiber
gets ready for the first sliver formation through the carding process.
• It is the most important process which helps to open the flocks to individual fibers, cleaning up the impurities, removing the neps, align the fibers etc to achieve the basic yarn quality and better efficiencies in further spinning processes.
• Higher the production, the more sensitive becomes the carding operation and greater the danger of a negative influence on quality.
Model depicting structure of CarderModel depicting structure of Carder
Technical Details of the Carding Machine
Speed (current) 182 m/mins
Speed (maximum) 330 m/mins
Length of sliver per can 9000 m
Weight of sliver in 1 can 50 kg
Sliver hank 0.100 Ne
Time to fill 1 can (output) 62 mins
Efficiency 79.6%
Impurities removed 6 %
Production per hour (current) 51.4 Kg
Doubling By Breaker Draw Frame
Breaker Draw Frame MachineBreaker Draw Frame MachineTechnical Details of Doubling Machine
Speed (current) 645 m/mins
Speed (maximum) 900 m/mins
Length of sliver 5500 m
Weight of sliver 30 kg
Input Sliver hank 0.100 Ne
Output Sliver hank 0.105 Ne
Time to fill 1 can (output) 7 mins
Time to fill 1 can (input) 15-20 mins
Efficiency 80-85 %
• The cans filled with sliver are then passed on to the breaker draw frames from the carding machines. Here, sliver from 6 of these cans are doubled into 1 can.
• In other words 6 slivers with hank of 0.100Ne are combined and merged together to make a finer sliver of hank 0.105Ne.
• Hence, the output sliver is more compact, fine and ready to go into the combing process.
Lap Formation
A Model showing functionality of the Unilap MachineA Model showing functionality of the Unilap Machine
Technical Details of the Unilap Machine
Speed (current) 115 m/mins
Speed (maximum) 130 m/mins
Length of lap 250 m
Input Sliver hank 0.105 Ne
Output weight of lap 75 gms/m
Time to fill the full lap (output) 2.3 mins
Time to empty 1can (input) 3 hrs
Efficiency 80-85 %
• After the doubling process has been done, 22 – 28 of the output cans from the breaker draw frames are combined together to form laps for the combing process.
• Each lap of diameter 550 mm, weighing nearly 18.75 kg contains 250 meters of lapped cotton sliver.
• Only optimal drafting distribution can ensure the best drafting conditions and the resulting fiber parallelization.
• 4 calendar rollers and large lap rollers allow for faultless batt structure, and ensure a secure and optimal lap construction.
Combing• Combing is required to produce fine yarns through an additional
straightening in this operation, fine toothed combs continues straightening the fibers until they are arranged in high degree of parallelism.
• In this process the short fibers namely noils are removed. The noil that is removed constitute to about 15 – 20% of the lapped cotton fibers in case higher counts such as 80s and 100s.
• These noils are then used to produce yarns of coarser count through open end spinning.
• The output that comes out of the combing machine is known as combed sliver or combed cotton which is very fine, smooth, strong and used to produce more serviceable cotton fabrics.
Particular Rieter E 62 Rieter E 60
Speed (current) 202.1 m/mins 148 m/mins
Speed (maximum) 400 m/mins 400 m/mins
Length of sliver 6700 m 3800 m
Input weight of lap 75 gms/m 75 gms/m
Output Sliver hank 0.16 Ne 0.16 Ne
Time to fill 1 can (output) 30-35 mins 25 mins
Time to finish 8 laps(input)
2 hrs 2 hrs
Efficiency 80-85 % 80-85 %
Impurities removed (Noil) 20-21% 20-21%
Drawing By Finisher Draw Frame• The combed slivers are then combined and drawn to form the final
condensed sliver that is to be taken to the speed frame where the first roving yarn is made.
• The combination of several slivers is known as drawing.
• This process eliminates irregularities that would cause too much variation if the slivers would put through singly.
• 8 of the combed slivers are combined together to form 1 condensed sliver there by producing longer and thinner slivers.
• This draw frame is the final stage drawing system and hence known as the finisher draw frame.
Technical Details of Doubling MachineSpeed (current) 504 m/mins
Speed (maximum) 900 m/mins
Length of sliver 3500 m
Input Sliver hank 0.16 Ne
Output Sliver hank 0.16 Ne
Time to fill 1 can (output) 7 mins
Time to fill 1 can (input) 15-20 mins
Efficiency 70-75 %
Speed Frame• The condensed slivers which have been obtained from the finisher draw
frames are fed directly from the cans each of capacity 20 kg to the drafting system of the speed frame through the creel to the feed guide.
• Each speed frame roves yarn to 120 bobbins at a time from 120 respective cans. Here the slivers are drawn through the sliver guide by a 4 roller double apron drafting system with 4 top rubber rollers and 4 bottom steel rollers.
• The main objective of the roving process is to give the first basic twist to the sliver to hold the short slivers together and the resulting product
Technical Details of the Speed Frame Machine
Twisting range 10-100 twists per meter (20-2.54 tpi)
Fiber length range Upto 63mm
Time taken to wind one bobbin 247.7 minutes(approx)
The input can capacity 20 kg
The delivered bobbin capacity 4600 m
Speed 1500 rpm
Thickness of the roving yarn 260 mm
Software used Easy spin systems 2.07
Production per Hour 133704 m/hrs
Ring Frame Spinning
There are two kinds of Ring frame spinning techniques adapted here: Conventional Ring frame spinning COM4 spinning with compacting technique
• The basic concept behind the two techniques is almost the same but the COM4spinning has an extra attachment i.e. the primo suction unit which makes it efficient for finer counts and improves the quality and dyeability by removing the trash with the jet of air and holds the fibers as well to improve the efficiency too.
•As the roving yarn is fed it passes from a set of rollers i.e. the drafting system where the rollers move at progressively higher speeds. The top rubber rollers and the bottom steel rollers constitute the drafting system.
•Then the yarn goes to the yarn guide through the nip roller at the front. The yarn is wound on the spindle which rotates at a high speed which is driven by the spindle drive.
•The traveller moves up and down gradually during the spinning process. The traveller has a ring which is always in contact with the high speed running yarn which guides the proper and uniform winding of the yarn on the spindle.
WINDING OF RING SPUN YARN
FUNCTION:• Waxing of the yarn• Re-tensioning of the yarn to avoid tension variations• Splicing as and when required to join the two ends of spindles • Cleaning of the yarn• Conversion of small spindles to required size- cones
PROCESS: • The spindles are fed to the magazine of the machines.• One of the spindles is automatically taken by the machine for the
winding (with air jet and drum rotation mechanism) to the spool keeping the spindle stationary at the bottom.
• This happens by the synchronized movement of automatically and pneumatically controlled suction arm which takes (sucks) the thread and gripper arm which joins the spool and spindle thread by splicing technology.
• The splicing is done by untwisting the broken ends of the yarn and then retwisting the yarn to get maximum uniformity.
• There is a gripper yarn perforator which sucks trash and removes it.• The yarn passes through the tension control unit which maintains a
uniformity in yarn-tension• Through the head drum guard and drum, the yarn is wound on the
required cones.
Open End Spinning
• A process of spinning which is extremely fast and is best suitable for coarser yarns for the use in denims, towels, carpets etc is Open End spinning or Rotor spinning.
• In this process the sliver from the can which has been drawn from a
finisher draw frame passes through a sliver guide in the COROBOX unit which guides the sliver to the funnel shaped inlet from where it goes to the housing board.
• From this unit it goes to the single spiked roller that revolves at a progressively higher speed, thereby opening up the sliver so that the sliver can be fed virtually individually into the spinning operation.
• This in turn breaks up and opens up the sliver, hence the term “open-end”.
Automatic piecing by the COROMAT unit:• The specially designed sensor enabled COROMAT unit senses the yarn
movement at the rotor with the help of a laser and then if it identifies any yarn absence in the way it stops and pieces with the two way suction and piecing technology.
• The lever opens the housing board, sucks up the yarn from the rotor, closes the housing board cover, takes the end of the cone yarn to the navel and again after sucking the yarn from the rotor pieces both the ends by untwisting and re-twisting as and when required.
• This operation is done twice per defect, if the piecing turns to be unsuccessful; it has to be manually done by the operator.
Yarn count of the yarn produced is less than 40 s.
Comber sliver is not used.
There is no requirement of spool rotation as in Ring frame. So lessens the yarn breakages and knots in it
Larger spools can be made (upto 3.7 kg)
Better fiber elongation due to progressive rotors and rollers.
Less handling time as it is a shorter process and no winding is required
Homogenizes the blends better than the ring frame units with the same preparatory techniques
Yarn ConditioningA maximum of 570 cones are taken to a cylindrical chamber i.e. CONTEXXOR COMPACT xorella machine in which it is provided with 65 degree celsius temperature with almost 90% vacuum application so that the yarn is conditioned and attains moisture gaining capacity. This process also increases the durability of the yarn.
Yarn PackagingThe packages of yarns are made as per the buyers specification or are generally made in the packages (cones or cheeses) of 1.5kg ,1.89 kg,2.8 kg for Ring spun yarns and packages of 2.5kg,3kg and 3.7 kg packages for open end yarns. The conditioned yarn is then packed in two ways:
In carton packing, the cartons were manually packed with transparent tape. Each carton may have 30‐50 cones or even more depending on the buyers specification.
In Pallet packing 250 cones are arranged in a 5*5 manner with 10 layers of the same, one above the other with a supporting layer in between. Then the cones are wounded over by polythene sheet . This kind of packing is mainly done for in house transportation.
Then the particular packed carton or other form is labeled with the lot number, gross weight, net weight, number of cones, count of yarn, fiber name and content and buyersuppliers name etc.
WEAVING
WEAVING PREPARATORY
The weaving department forms the core of fabric production in a textile industry. In this department our study concerns about the weaving of terry towels i.e. uncut pile weaving. The weaving department has following sub departments in it:•Textile design department•Weaving preparatory department•Weaving department•Grey folding department
TEXTILE DESIGNING DEPARTMENT The objective of this department is to prepare a pattern for the weaving process toachieve the desired effect and look on the fabric as per the buyer’s specification.Itdoes the following things.
As per the design and structure specified the design of the towel is made. Accordingto the design the yarn requirement is calculated with the help of the software tools.The required amount of yarn is sourced and then a warping plan is made and isfollowed.
FORMATION OF DESIGN
WARPING PATTERN PLAN
WARPINGSIZING
TRANSPORTATION OF WEAVERS’S BEAM TO THE WEAVING DEAPATRMENT
Sectional warping machine Sectional warping machine
Weaving Preparatory
Winding Yarn from the spinning department
Winding Yarn from the spinning department
WindingWinding
DispatchDispatchPackingPacking
InspectionInspection
Loom ShedLoom Shed
Drawing in (Beam Gaiting)Drawing in (Beam Gaiting) KnottingKnotting
SizingSizing
Beam WarpingBeam Warping Sectional WarpingSectional Warping
Process Flow
There are 4 direct warping machines from:Benninger Ben-direct – 2 machineJupiter - 2 machines
•The cones are placed on the creels and the ends are passed through two pre stationary rods out of which one is stationary and one is movable. •These rods are responsible to give proper tension to the yarns. •The yarns are passed through a Zig-Zag yarn guide to the gear-controlled cylindrical beam that continuously rotates and prepares the warping beam.
Ben-Direct warping machine Ben-Direct warping machine
Zig-Zag guides for proper windingZig-Zag guides for proper winding
Direct Warping
There are 5 sectional warping machines from:Benninger (SuperTronic) – 1 machineSucker Muller (hacoba) - 1 machinesVamatex (Servomatic M 08) – 1 machinePrashant Gamatex – 1 machineKarlmayer – 1 machine
•The sectional warping has a warper’s beam in the form of a composite solid made from a drum and a cone of length 3.4 m. Drum density is 400g/dm3.• After the cones are placed on the creels and passed through the pre stationary rods and thread control unit and the end guides, the sectional beam rotates at high speed and the beam automatically moves laterally to get a uniformly wound.
Winding of weaver’s beam from sectional beam
Winding of weaver’s beam from sectional beam
Reed yarn guide separatorReed yarn guide separator
Sectional Warping
•Sizing is a process in which the warp yarns are stretched and given a size bath, dried and in the process thousands of warp yarns from a warper’s beam are transferred into a weaver’s beam. •Sizing is mainly done to increase the strength of the warp yarns that have to sustain the high tension and regular abrasion during the weaving process. The warp yarns are subjected to a stretch of 1%. •Sizes like Terrysize UFC, Sizebond WD, Softsize PB, Sizecare CWS and Sizol TDY are used which contain starch based or synthetic like polyvinyl alcohol or a water-soluble acrylic polymer, depending on the fiber content of warp yarns.•They are given a bath of a water base sizing solution with a concentration of 1.7% for 1/13 count to 10% for 1/10 count. •The input yarn is subjected to maximum tension of 650 N and the output yarn is subjected to maximum tension of 1250 N.
Line diagram of the sizing machine
Line diagram of the sizing machine
Sizing
WEAVING
•After the sizing process of the pile and the ground beams, they are manually transported to the weaving looms. •The looms present in the weaving department are Airjet looms and Rapier looms.• There are a total of 151 looms that were in production out of which 58 are Rapier looms and 93 are Airjet looms.These looms have either Dobby attachment or Jacquard attachment.• Out of these 151 looms, 62 have Jacquard and 89 have Dobby. •According to the orders coming to the unit, looms are allotted for specific towel weaving.
The weaving unit
•Based on the production plan and the textile design plan, the beams of the pile & ground are gaited on to the loom as specified in the loom plan. •Each of the ground and the pile beams carry yarns of length nearly 3000 and 9000 meters respectively. •The weft yarns are arranged on the weft feeder/dispenser based on the color pattern. •The weft yarns are usually supplied from cones. The design through floppy/ programmer is set on the looms.• The loom process control parameters for the functioning of the beams are set, like the reed, the pick, the terry motion, let off, take up etc & weaving starts. It must be noted that for the formation of the pile loops, the speed of the pile beam (let off) is more than the speed of the ground beam. •As such the ratio of yarn consumption of ground beam to pile beam is 1:5.•Once the cloth roller for winding of the towel is full which can take upto 1200 kg of grey fabric roll, the roll is doffed & sent to the Grey folding area.• Before sending to the Grey folding area, relevant production entries are made in the system.
Weaving Process
DRAWING IN Here 16 heald dobby attachments are used for terry towel designing. The pile threads are drawn on four healds, & the ground threads (if the loop formation is to be continuous) on eight healds for a 2 ground-2 pile order of arrangement. 2 healds are used for leno and 2 are used for selvedge.
DROP PIN MECHANISMThere are drop pins for every single yarn. Yarn is passed through the whole provided in the drop pin.
SHEDDINGShedding is the process of division of warp sheet in two layers to create space for insertion of weft yarn.
PICKINGPicking is said to be passing of weft yarn through the shed opening.
Picking & creel standPicking & creel stand
Weaving Mechanism
BEATING UPThe weft thread that has been inserted across the warp thread in a shed is pushed upon the fell of the cloth. Fell of the cloth is the position of the last pick in the cloth woven on the loom.
LET OFFIt allows the warp yarns to move in forward direction by unwinding weavers beammaintaining a predetermined warp tension.
TAKE UPA motor is provided which winds the fabric produced in the loom.
WEAVE CONSTRUCTIONThe Turkish toweling structures form a class of warp pile-termed “terry” pile – in which certain warp threads form loops or curls on the face of the cloth. Only one kind of weft may be used, but 2 series of warp threads, placed on separate beams, are necessary for the production of the cloth- viz. ground threads & pile threads.
Terry Towel weave’s construction: red lines represent the pile threads and blue lines represent the ground threads.
Terry Towel weave’s construction: red lines represent the pile threads and blue lines represent the ground threads.
Warp beam trolleyWarp beam trolley Pile beam trolleyPile beam trolley Doff beam trolleyDoff beam trolley
TRANSPORT VEHICLESTRANSPORT VEHICLES
GREY FOLDING
GREY FOLDING •After the required fabric is woven by the weaving department, each doff is then sent to the next department known as the Grey Folding•It is the store house of the grey fabric. It can store about 8000 tons of grey fabric at a time. •Inspects the grey fabric for weaving defects and to generate quality reports of the fabric inspected. •It also prepares the fabric for delivery to the processing department as per the present requirement or demand. •It stores the grey goods in the roll form, until they are issued to the processing. It also mends all the repairable defects prior to rolling & storage.•Before sending into the Grey Folding Department, a computer data entry of the details of the fabric doff is made for the Weaving & Grey Folding Department and the data card of the same is fixed on to the doff roll for easy identification.
Grey fabric storeGrey fabric store
The details entered are:Order no.Sort no / design no.Length of the fabric rollWeight of the rollTotal no. Of pieces produced per size.
Grey Fabric Inspection MachineThe 100% grey fabric inspection is done in the woven fabric inspection machine with the following features:•Inspection table is laminated with adequate number of tube-lights provided beneath and above the glass with variable lighting arrangement.
•Push button controls are given on the drive box on the right hand side.
• Cloth can run in FORWARD as well as in REVERSE direction instantaneously.
•Fabric runs face in/face out
•Special jogging or inching device is provided to stop the machine at the right location of the defect.
•Soft start and instantaneous stoppage of fabric.
•Automatic stop arrangement to stop the machine at the end of the fabric piece.
•Bow bar has been provided in the batching device to open out the creases in the fabric.
•Perfect tension during the flow of the fabric is provided using guide roll assembly, thus no hassles of nip rolls.•Meter Counter is installed in front on platform top for easy reading.
PROCESSING
PROCESSINGObjectives of Processing:
To remove the impurities. To increase the lustre and appearance of the fabric. To make the fabric attractive and sellable. To improve the softness and water absorbency of the fabric. To color the fabric of different shade.
Material Flow of Processing
Grey yarn/ Fabric
Dyeing Machine Hydro-extractor
Rope OpenerDryerInspection
Yarn DyeingProcess:•The yarn is loaded in the ECO-BLOCK machine and the program is set that consists of all the steps of scouring, bleaching, dyeing ,soaping and fixing. •After the material has been loaded firstly scouring chemical is used i.e. EM clean cp and HTC chemical. The temperature is raised to 80C and is run for 10 minutes. EM clean cp, soda miratol WA and caustic is put and runned for 20 minute at 80 degree C then hydrogen peroxide is added. Temp is raised to 100 degree C and held for 30 minutes . Then the bath is drained , then hexa phosphate is added at 90 degree and run for 10 minutes. •In dyeing process first salt and saracol-s is added at 60 degree. Then color solution is added by dosing to avoid more strike of color generally dosing time is 20-30 minute. •Then add soda at 60 degree and run for 15 minute then add caustic and run for 15 minute the and run for drain the bath. And give a cold wash to the dyed fabric. •Then raise the temp to 60 degree and add acid for neutralization. Run time for acid is 10 minute.•Then drain the bath and add miratol that is a soaping agent and raise temp. To 95 degree and run for 10 minute.• Then give a hot wash at 80 degree for 10 minute.Then take out material and cut sample and match with standard depth. Then go for softening at temp. 60 degree for ten minute. For heavy shade we do use a fixer before softening at 60 degree for 20 minute. Drain the bath and give a cold wash and unload the material.
Yarn Dyeing MachinesM/c name Make No.of
chamberAddition
tankPump speed
Material capacity
Liquor capacity
SAMPLE M/C Fong’s 8 1 100 rpm 16 kg 60 lit.ECOBLOCK-1 Thies 1 1 1440 rpm 146 kg 750 lit.ECOBLOCK-2 Thies 1 1 1440 rpm 270 kg 1500 lit.ECOBLOCK-3 Thies 1 1 1440 rpm 270 kg 1500 lit.ECOBLOCK-4 Thies 1 1 1440 rpm 270 kg 1500 lit.ECOBLOCK-5 Thies 1 1 1440 rpm 660 kg 3000 lit.ECOBLOCK-6 Thies 1 1 1440 rpm 1120 kg 6000 lit.ECOBLOCK-7 Thies 1 1 1440 rpm 1120 kg 6000 lit.ECOBLOCK-8 Dalal engg.
Pvt.Ltd1 1 1440 rpm 56 kg 280 lit.
ECOBLOCK-9 Dalal engg. Pvt.Ltd
1 1 1440 rpm 105 kg 525 lit.
ECOBLOCK-14 Thies 1 1 1440 rpm 292 kg 1500 lit.
ECOBLOCK-15 Thies 1 1 1440 rpm 292 kg 1500 lit.
M/c name Manufacturer Capacity Tempt.
Yarn Drier-1 Thies 300 120°C
Yarn Drier-2 Thies 1236 120°C
Yarn Drier-3 Thies 1236 120°C
Yarn Dryers
Process: First take the material and load it in the eco soft machine. Main objective of scouring is to remove the PVA and chemical used is EM clean CP. After this treatment bleaching chemical is added, which includes miratol WA, Tinochloride GI for the bleaching temp. Required temperature is100 degree and treatment time is 10 minutes. Then hydrogen peroxide is added at 100 degree and run for 30 min. Then hot wash is given at 80 degree for 10 minute. After hot wash addition of CAT is done but temp. must be cool down to 55 degree first and then run for 15 minute .CAT is a peroxide killer & needed for good results. In dyeing process first add salt and saracol-s at 60 degree. Then add color solution by dosing to avoid more strike of color generally dosing time is 20-30 minute. Then add soda at 60 degree and run for 15 minute then add caustic and run for 15 minute the and run for drain the bath. And give a cold wash to the dyed fabric. Then raise the temp to 60 degree and add acid for neutralization. Run time for acid is 10 minute. Then drain the bath and add miratol that is a soaping agent and raise temp. To 95 degree and run for 10 minute. Then after ward give a hot wash at 80 degree for 10 minute. Then take out material and cut sample and match with standard depth. Then go for softening at temp. 60 degree for ten minute. For heavy shade we do use a fixer before softening at 60 degree for 20 minute. Drain the bath and give a cold wash and unload the material.
Fabric Dyeing
Load Batch
Desizing
Bleaching
Neutralization
Check pH, Hardness of H2O & Residual H2O2
Sequestering Agent
Check pH
Dyeing starts
Cold Wash
Acid Wash
Soaping
Softening
Draining
Unload
Fabric Dyeing Process
Processing Laboratory (Testing)• The main function of processing laboratory is to test each and
every detail of the lot as per the company requirement including fastness properties and the quality of fabric in terms of strength, feel & handling .
• All the activities which are performed in the lab on small samples are performed in bulk manner in the processing department. All the calibrations are carried out in the lab.
Testing:The objectives of testing are :• Shade development• Quality Parameter Checking of the in-house material• Quality Parameter checking of dyes and chemicals
List of machines in lab:•Spectrophotometer•Dispenser•Solution maker•IR beaker dyeing machine (Ahiba Nuanace) •Light fastness tester•Light box•Perspiration tester Rota meter (paramount)
•Open beaker dyg. Machine•Laundrometer•Electronic pipette•Surface water absorbing testing machine machine•Digiflame digital fire retardency tester
FINISH FOLDING
FINISH AND FOLDING UNIT
• Finish Folding is one of the most crucial units in terms of productivity.
• It serves as a final stage of terry towel manufacturing as the towel passing out of this department will bear its final look and appearance that is one of the most important criteria from a buyer’s point of view .
• After processing the towels are brought in this unit where each towel is separated from the fabric roll and stitched and packed as per the buyer’s specification and dispatched.
• For making bath robes the whole fabric rolls are brought to the bath robe making unit where the fabric is laid according to the marker plan , cut and sew.
The process of the finish-folding department is as follows:
Length Slitting
Length Hemming
Cross Cutting
Length Hemming alteration
Cross Cutting
Embroidery
Cross Hemming
Checking AQL
Packaging.Polybag.Carton
Dispatch
Length Slitting• The main objectives of length slitting are lengthwise slitting of
the fabric into individual pieces and correct slitting of fabric using sensors.
• Processed fabric is fed from the trolleys that are brought from the processing unit.
• Rollers are provided to feed the fabric on the cutter.• Knives are activated according to the number of parts that
have to be taken out from the fabric.
Length Slitting MachineLength Slitting Machine
Number of machines 3
Speed (current) 25 m/min
Speed (maximum) 35 m/min
Efficiency 70%
Production per hour (current) 1470 meters
Production per hour (maximum) 2100 meters
Production per day (current) 35280 meters
Production per day (maximum) 50400 meters
Technical Details of Length Slitting MachineTechnical Details of Length Slitting Machine
Length Hemming• The main objectives of length hemming are lengthwise
hemming of the fabric into individual pieces and correct stitching of fabric using sensors.
• The fabric is fed lengthwise and the stitching is done on both of its edges in the lengthwise direction.
• These machines are off Schmale Durate with Pegasus chain stitch swing machine attachment.
• There a total off 8 length hemming machine performing single needle stitch and 3machines performing double needle chain stitch.
• The main reason for the usage of chain stitch is that there need not to be any bobbin change after fixed intervals and also,fewer chances of thread breakages.
Number of machines 11
Speed (current) 15 m/min
Speed (maximum) 20 m/min
Stitches Per Inch 9-11
Type of stitch Chain Stitch
Efficiency 70%
Production per hour (current) 840 meters
Production per hour (maximum) 1200 meters
Production per day (current) 35280 meters
Production per day (maximum) 50400 meters
Technical Details of Length Hemming MachineTechnical Details of Length Hemming Machine
Length Stitching MachineLength Stitching Machine
Cross Cutting and Hemming
• After the length hemming is done the trolleys are sent to the cross cutting and hemming section.
• There are 10 cross cutting machine and 105 cross hemming machine.
• Cross hemming machine are single needle lockstitch machine
• Hem folding and stitching and label attachments are done manually piece by piece.
AQL (Acceptable Quality
Level)•100% checking is done manually at this stage to grade the product into different qualities according to the type of defect.•Towels are checked for defects as they come out of the cross hemming machines. •The defected pieces are graded according to acceptable quality standard. Pieces are forwarded only if they match the standard.A grade - no defectsB grade - defects exist but buyer cannot identify.C grade - visible defects, the pieces are sold as downgrades.D grade – if the pieces are not sellable because of some major defect.After AQL process the lot of towels is send for packaging.
Bath robe SectionProcess Flow For Bathrobe Making
Sleeves and Pocket
Overlock
Sleeves Hemming
Top Stitch On Shoulders
Shoulder Attachment
Pocket attachment
Pocket Overlock(3 sides)
Pocket Join
Pocket hemming
Sleeves attachment
Top Stitch On Sleeves
Sides Overlock
Top Stitch On Placket
Label and sleeves seam
Placket Attachment
Loop Making
Top Stitch On Belt
Bottom Overlock
Belt Formation
Bottom Hemming
Inspection and Packaging
Specifications
• Spreading done manually.• Total ply height is 7 inches.• No. of lays in a spread = 40• GSM of fabric = 420• If GSM 360 or lays no. of plies = > 70• Production per 12 hours = 550 pieces
At the time of observation:• 4 way marker• SM size• 420 gsm• Time taken in laying 0.5 hour• Length of ply = 586 cm• Width of ply = 232 cm• White colour fabric• No. of plies = 40
The following defects are encountered with during the cut and sew process.
Stitching Defects
Alter Mending Stain Reject
CORNER IN NEEDLE MARK OIL STAIN BIG HOLE
CORNER OUT P. FOOT MARK SOIL STAIN BIG SLUB
CORNER OPEN SMALL HOLE RUST STAIN SHADE VARIATION
CORNER IMPROPER CONTAMINATION INK MARK DYE STAIN
LOOSE STITCH SMAL L SLUBS BOWING
JUMP STITCH MENDING MARK
WAVY STITCH PATCHY DYEING
DOWN STITCH WHITE SPOT
DOUBLE STITCH DOUBLE PICK
UNCUT THREAD MISSING PICK
LOOSE THREAD DOUBLE END
RAW EDGE DRAWING MISTAKE
PIPING DAMAGE FABRIC
ROPING REVERSE FABRIC
PUCKERING MISSING END
SPI BAD DAMAGE SELVEDGE
JOINT MIS MATCH SPOT
WRONG THREAD USED STITCH MARK
FABRIC FACE/BACK MAJOR CONTAMINATION
PLEATS
ELASTIC PROBLEM
GATHERING
OVERLOCK PROBLEM
Packaging
Packaging of terry towels is done as per the buyer’s requirement. Each buyer has their own specific way of folding the towels and size of the carton in which the goods are to be shipped. The packaging is usually done manually.There are four ways of packing the towel. They are:• Solid color – solid sizeThis type of packaging contains same colored and same sized towels packed in one carton. • Solid color – assorted sizeThis type of packaging contains same colored but different sized towels i.e. one piece each of wash, hand, bath, and bath sheet in one carton.• Assorted color – solid sizeThis type of packaging contains different colored but same sized towels to be packed on one carton.• Assorted color – assorted sizeThis type of packaging contains different colored towels of different sizes to be packed in one carton. The towels according to the desired category are first packed in poly bags. Poly bags are provided with air holes to allow air-flow. The cartons used for packing are manufactured by local vendors and have handling instructions printed on them.
A carton can usually contain from 6 to 24 towels poly bags and 12 to 60 in case of hand and wash towels as per the buyer’s requirement. Here once again checking is done. This time the checking is done randomly where 20 to 25 pieces of towels is picked from a group of 100 pieces. If more than two to three pieces are found defective then the entire lot is rejected. This checking process is termed here as FSA or Final statistical audits. It usually takes place after packaging.
Once the lot is approved for shipment they are loaded in trucks for the delivery. An average big container has the capacity of 64 cubic meters that is for example if we take bath towels of the standard size, then 800 cartoons of bath towels and each cartoon containing 12 towels weighing approximate 4 tons can be stored comfortably in one container. Containers are usually of 20 & 40 feet. Everyday there is a shipment of almost 55 – 60 tons of terry towels. They have 120 employees working per shift.
Cartons ready for shipmentCartons ready for shipment
EFFLUENT TREATMENT PLANT The effluent treatment is designed in such a way to get the maximum out of theavailable water resources and discharge minimum to the environment creatingmaximum utilization and minimum impact on the environment. All the liquid waste is treated so that it doesn’t harm the environment. The working of the plant is as follows:
Water reaches to the
collection tank through under
ground drainage system.
Water goes to the Sreen
chamber for the removal of
big solid wastes by
eiltration to decrease the
BOD & COD.
Water reaches the
homogenizing tank for
equalizing temperature, color , pH
solid percentage,
BOD & COD
Water reaches a neutralizing tank where the
PH is made normal to 7.5
by adding recycled H2SO4.
Water reaches the distribution tank
which adds bacteria
contained sludge to the water to
decrease the BOD and distributes the water to the oxidation tank.
Water is bubbled with atmospheric air @ 800m3/hr
for two days.Here bacteria takes oxygen and
consumes upto 60 % of dyes in
water and decreaes the BOD
& COD
Secondary purifeier for
sludge settlement
Addition of alum and
decolorizing agent
Tertiary purieier.
Settlement of sludge and
most solutes.
20% of treated water discharged in open
agricultural lands & 80% discharged to the water
bodies through drainage.
The sludge is dumped into the hazardous waste maneill
Working of the Effluent treatment plant at WIL, VAPIWorking of the Effluent treatment plant at WIL, VAPI
TOTAL QUALITY MANAGEMENT
TOTAL QUALITY MANAGEMENT The total quality management department is responsible for all kinds of quality parameters running in the industry. Although the major objective of this department is to maintain customer satisfying quality level in •Quality of raw materials used•Quality of infrastructure and machinery used for production•Quality of the finished goods•Quality of the working area•Quality of human capital and management
The objectives of the TQM department are: •To sustain the quality of the goods•To satisfy the customer by sustaining the quality parameters crucial to customer and crucial to quality.•To develop a system so that factors critical to quality and critical to customer are sustained under all circumstances•To ensure that the quality providers also get the quality working environment and are paid accordingly.•Working deeply on the factors Crucial to Customer and Crucial to Quality that are considered as the core of the departmental values.
The techniques adapted by the department to meet the objectives are:
Online Quality Inspection: The quality checking happens generally at the entry and the exit level of a particular process. If the quality of the intermediate stages or the condition of the machine or the quality of the materials used is also checked while the process is going on, it is called on-line checking.
Offline Quality Inspection: The checking of the input and output of each process every time is not possible under offline inspection, as there is 100% checking in the offline inspection to eliminate any chance of loophole in quality maintenance.
Quality Checking: Randomly selecting the samples and checking them for standards follow up this technique. There is an AQL i.e. acceptance quality level for each and every parameter which varies from buyer to buyer and even the manufacturing company has its own norms. Generally, AQL 2.5, Level 2 is maintained. The final inspection is also done randomly and the evaluation of what has been found as results in those checks are called FSA i.e. final statistical audit that is actually a report of the quality parameters.
RUGS
RUGS DIVISION
Rugs is a general term embracing many coarse woven or plaited fibrous materials used for covering floors or furniture, for hanging as screens, for wrapping up heavy merchandise and for other miscellaneous purposes. Rugs are made both through Power loom & Handloom. Rugs are being widely used in USA and European countries, due to its soft nature.Rugs in this plant is being manufactured by the process of tufting. Tufting is a type of textile weaving in which a thread is inserted on a primary base After the knitting is done, short U-shaped loops of extra yarn are introduced through the fabric from the outside so that their ends point inwards.
Production of rugs consists of following processes:1. Tufting2. Latex Coating3. Processing4. Inspection By TQM5. Finishing & Packaging
Tufting
RUGS DIVISION
Rugs Production
Rugs Dyeing Grey Folding And Raw Material
Cut and Sew
Packaging
Coating and Latex
Heat setting and Cabling
TUFTING
Tufting is the process of creating textiles, especially carpet, on specialized multineedlesewing machines. Several hundred needles stitch hundreds of rows of pile yarn tufts through a backing fabric called the primary backing. The needles push yarn through aprimary backing fabric, where a loop holds the yarn in place to form a tuft as the needle is removed. The yarn is caught by loopers and held in place for loop-pile carpet or cut by blades for cut-pile carpet. Next, secondary backings of various types are applied to render a variety of performance properties. Here are some key steps in the tufting process:
• Yarn comes from cones on creel racks (or from big spools called beams) into
the machine.The primary backing feeds into the machine.• Yarn and primary backing come together in the machine (full shot
of machine • Yarn is fed through needles on a needlebar of a tufting machine.
Needles repeatedly penetrate or tuft into the primary backing.• The tufted carpet is mended and inspected.• Carpet is rolled onto large rolls for the next step (whether it’s to
be dyed or to be backed.)
Tufting in this plant takes place in two ways:
1. Machine tufting 2. Table tufting
TuftingTufting
CUT AND SEW: After the latex coating is done the it is sent for cut and sew. There the roll is spread on the spreading table transferred to the cutting table through air floatation table and cutting is done by automatic Gerber cutting machine. A maximum of 10 plies of spreading is done for the machine tufted roll and 45 plies of canvass roll spreading is done.After the cutting is done as per required design the pieces sent foe edge finishing. It includes either piping the edges or overlocking it as per requirement of the buyer.
DYEING: Dyeing is the process of coloring materials by impregnating fiber, yarn or fabric with dyestuff. Coloration in rugs can be achieved at two possible times in the manufacturing process – either by dyeing the fiber or yarn before the fabric is tufted or by dyeing the tufted fabric before the application of the secondary backing and the finishing process.Yarn dyed rugs are only washed and dried for finishing whereas grey rugs undergoes dyeing followed by washing and drying.
FINISHING AND PACKAGING : After drying the rugs, finishing is done like trimming of the threads, mending etc. they are further inspected by the TQM and after their clearance they are ready for dispatch. Inspection is also done at packaging stage.
PROJECT
BEAM FAULTSS.NO LOOM NO. GROUND/PILE NO. OF CONES BEAM NO. COUNT REASON SIZING MACHINE
1 62 P 1 WP20 13 KC CUT END B/N-1
2 68 G 1 WG27 2/20 KC CUT END JUPITER
3 72 G 5 BG21 2/20 KC CUT END,WEAK ENDS
JUPITER
4 52 P 2 BP8 2/20 KC CUT END JUPITER
5 50 G 1 BG12 2/20 KC CUT END JUPITER
6 56 G 6 BG35 2/20 KC CUT END,WEAK ENDS
JUPITER
7 59 G 3 WG61 2/24 KC CUT END JUPITER
8 134 P 1 KP76 11 HYGRO CUT END B/N-2
9 132 G 2 KG29 10 OE CUT END S/M
10 112 P 1 AP7 2/20 RC CUT END B/N-2
11 115 G 2 HG32 10 0E CUT END S/M
12 170 P 1 SP3 2/24 KH PIMA CUT END B/N-2
13 75 P 5 TP13 2/20 RC CUT END B/N-1
14 78 G 1 TG16 10 OF CUT END S/M
15 77 P 2 TP3 2/2O RC CUT END B/N-2
16 80 G 2 TG16 2/24 KC CUT END JUPITER
17 85 P 1 TP23 13 KC CUT END B/N-2
18 86 G 1 TG29 2/20 KC CUT END JUPITER
19 165 P 4 KP97 2/20 RC/SHE CUT END B/N-2
20 160 P 1 KP66 11 HYGRO CUT END B/N-2
21 193 G,P 1,1 NG51,KP13 10 OE,16 KC CUT END S/M,B/N-1
22 178 G 1 NG56 10 OE CUT END S/M
23 180 P 1 KP28 11 HYGRO CUT END B/N-2
DATE: 11.06.2013
S.NO LOOM NO. GROUND/PILE NO. OF CONES BEAM NO. COUNT REASON SIZING MACHINE
1 68 G 1 WG48 10 OE CUT ENDS S/M
2 70 G 1 SG8 10 OE CUT ENDS S/M
3 72 G 4 BG21 2/20 KC WEAK ENDS JUPITER
4 69 P 1 BP30 2/20 RC CUT ENDS B/N-2
5 54 P 2 BP3 2/25.3 RC(S-6+60PVA) WEAK ENDS B/N-2
6 44 G 2 WG37 2/20 KC CUT ENDS JUPITER
7 41 P 1 WP67 2/25.3 RC(S-6+60PVA) WEAK ENDS B/N-2
8 144 G 1 KG7 1O OE CUT ENDS S/M
9 142 G 1 KG9 2/20 KC CUT ENDS JUPITER
10 112 G 1 KG31` 2/20 KC CUT ENDS JUPITER
11 122 P 2 SP17 2/24 KC CUT ENDS S/M
12 118 G 1 WG22 2/20 RC CUT ENDS S/M
13 128 G 1 KG26 2/24 KC CUT ENDS JUPITER
14 75 P 1 TP13 2/20 RC CUT ENDS B/N-1
15 93 P 1 TP30 2/24 RH PIMA CUT ENDS B/N-2
16 170 P 2 NG66 10 OE CUT ENDS S/M
17 166 P 4 KP55 16 KC YARN ENTANGLED INSIDE OTHERS YARN AT FLANGE CUT ENDS
B/N-1
18 159 P 1 KP60 2/20 RC CUT ENDS B/N-2
19 156 P 4 KP53 16 KC CUT ENDS B/N-2
20 154 G 1 NG3 2/24 KC CUT ENDS JUPITER
21 192 G 2 NG8 10 OE CUT ENDS S/M
22 187 P 1 KP85 2/24 KC CUT ENDS B/N-2
2324
183177
PP
1EXTRAENDS -22
KP89KP84
2/24 RH PIMA16 KC
CUT ENDSCUT ENDS
B/N-2B/N-2
DATE: 12.06.2013
S.NO LOOM NO. GROUND/PILE NO. OF CONES BEAM NO. COUNT REASON SIZING MACHINE
1 52 P 1 BP33 2/20 RC CUT ENDS B/N-1
2 56 G,P 3,2 BG37,BP17 2/20 KC,2/20 RC CUT ENDS JUPITER,B/N-2
3 60 G 2 BG28 2/20 KC CUT ENDS JUPITER
4 59 G 3 W646 10 OE CUT ENDS S/M
5 57 G 1 WG4 10 OE CUT ENDS S/M
6 32 G 1 WG11 2/20 KC CUT ENDS JUPITER
7 150 G 1 KG5 10 OE CUT ENDS JUPITER
8 144 G 1 KG7 10 OE CUT ENDS S/M
9 138 G 1 KG14 2/20 KC CUT ENDS S/M
10 126 G,P 1,1 SG3,SP21` 2/20 KC,2/20 RC CUT ENDS JUPITER
11 120 P 3 SP13 2/24 RH PIMA CUT ENDS JUPITER,B/N-2
12 118 G 1 SG25 2/24 RH PIMA CUT ENDS B/N-2
13 76 G 1 TG10 10 OE CUT ENDS B/N-2
14 78 G 1 TG16 10 OE CUT ENDS S/M
15 97 P 1 TG26 2/24 RC CUT ENDS S/M
16 93 G 1 TG31 2/24 KC CUT ENDS S/M
17 173 G 4 NG6 10 OE CUT ENDS,WEAK ENDS
JUPITER
18 160 G 1 NG9 10 OE CUT ENDS S/M
19 187 G 1 NG26 2/20 KC CUT ENDS JUPITER
20 178 P 1 KP15 16 KC CUT ENDS B/N-1
DATE: 13.06.2013
56%
44%
Beam Type more prone
GROUNDPile
3%
23%
10%
4%
13%
25%
1%
1%
1%
7%
3%
6%1%
Yarn count more prone
13 KC2/20 KC2/24 KC11 HYGRO10 0E2/24 KH PIMA10 OF2/20 RC/SHE16 KC2/25.3 RC(S-6+60PVA)2/24 RH PIMA2/24 RC
10%
31%
30%
29%
Sizing machine more prone
B/N-1JUPITERB/N-2S/M
Beam faults Cut ends Extra ends Crossings Over dried ends Over sized ends Sizing patch Count mix Sticky ends Migration or entanglement of one layer into other
Conclusion Ground beam is more prone in beam faults. Generally ground beams having yarn count 2/20 kc or 10 oeare
greatly included in beam faults. Beams made on sizing machines jupiter and sucker muller are more
in numbers which have cutends(beam fault).Effect of beam faults Because of cutends we have to use cone /cheese in place of that missed end in the further cause below given problems.1. Tension variation in the specific ends in the warp sheet.2. Threading time is more which further lowers down the m/c efficiency.3. Fabric faults likeVariable loop height leads to uneven appearance
Remedies Look into the yarn quality given by spinning department to the weaving preparatory department
TenacityYarn regularityPackage faults
Maintain the proper creel tension level in the warping and sizing for different yarn count. Reduce the peak tension level for the yarn count(10 oe,2/20 kc) in the warp sheet on the jupiter and sucker muller sizing machine. Optimise the speed for different yarn counts like low fpe single yarn and more for ply yarn. Proper working of stop motion on warping m/c. Proper temperature maintain in the time zone in sizing m/c. Worker should be more attentive towards warps breakages in sizing m/c. There should no short length of the warp sheet. Maintenance should be properly and regularly checked and maintained and there for the weaving preparatory machines. There should be proper preparation of sizing paste in term of their concentration of sizing material and its cooking time. Seepage of water on warp sheet from the roof should not be there. Operator should be aware about beam faults,its causes and there remedies so that he/she would take corrective action as per his knowledge and experience.
THANK YOU!
BIBLIOGRAPHY
http://www.osthoff-senge.com/en/produkte.html
http://www.thiess.com.au/smart-solutions
http://www.welspun.com/content.asp?Submenu=Y&MenuID=1&SubmenuID=14
http://welspunindia.com/content.asp?Submenu=Y&MenuID=1&SubmenuID=1
http://www.rieter.com/en/spun-yarn-systems/about-spun-yarn-systems/
http://schlafhorst.saurer.com/en/products/winding/bobbin-processing/
http://www.noiseandhealth.org/article.asp?issn=1463-1741;year=2011;volume=13;issue=54;spage=348;epage=355;aulast=Dube
http://www.fibre2fashion.com/industry-article/3/297/safety-and-health-issues-in-the-textile-industry2.asp