Mixing and blending of fibres&

Fabric Geometry

Department of Textile Science and apparel design

Dr. B.M.N. College of Home science2016-2017

PRESENTED BY S.Y.T.S.A.D (GROUP 3)

Mixing and blending of fibres

CONTENT

1. INTRODUCTION2. MEANING 3. DEFINITION4. REASONS 5. METHODS 6. ADVANTAGES7. DISADVANTAGES /PROBLEMS8. TYPES OF BLENDS

INTRODUCTION

o Until the end of last Century, only the natural fibers were available. o Then the blended fabrics were created. o In the type of combination fabrics, one yarn of one fiber type and

another yarn of another fiber type were woven together. o As there was a rapid growth in the manufacturing of man-made fibers,

a trend to combine two or more fibers was introduced.o These blends and mixtures were then successfully used in all types of

apparels, upholstery and furnishings.

MEANING

o Blended fabrics are created when two or more different kinds of fibers are mixed together to create a new fabric with unique properties

Or o A yarn or fabric made from two or more different fibers. These

blended fibers are found in each of the yarn in the fabric.

DEFINITION

o Blend: Blend is the combining of different fibers together intimately to achieve a desired product characteristic. Blend can influence coloring, strength, softness, absorbency, easy care, resistance to wrinkling, ease of spinning, cost, etc.

o Mixture: A mixture is a fabric which has one type of fiber in one direction and another type in the other direction.

REASONS FOR MIXING & BLENDING

o To improve the wear performance of the fabric.o To achieve aesthetic qualities i.e. appearance, texture and drape. o To obtain cross-dyed effect.o To improve spinning, weaving, dyeing and finishing efficiency. o To achieve on economic savings.o For producing permanent pleated fabrics.o To get resistance to moth and mildew.o For comfort and ease in washing, easy care. o Resistance to chemicals.o Improving absorbency.

METHODS FOR MIXING & BLENDING

o The fibre are spread one on top of the other and fed into the blending feeder.

o The blending can also be done in the CARDING STAGE.o A blended filament yarns of different deniers.

ADVANTAGES OF BLENDED FABRIC

o Fibres are blended to get the properties of these two fibre. E.g. Cotton/polyester. Cotton provides the absorbency and polyester provides strength.

o Blending is done to produce a fabric which is very costly. E.g. Silk can ne blended with cotton or polyester.

o Blended also helps to provide the fabric light weight with all desirable characteristics. E.g. Improving spinning weaving, and finishing efficiency and the uniformity of product.

o To improve appearance of the fabric.o To improving properties.o Improve handle of fabric.o Improve profitability of a fabric making in cheaper to produce.

DISADVANTAGES /PROBLEMS OF MIXING & BLENDING

o Sometimes some fibres may be hard and may cut the other softer fibre which may effect durability.

o The manufacture may face some problem with, which fibres to blend and in what proportion to blend.

o For blend there can’t be a general procedure for care, it will depend upon the particular fibre and finish applied to it. E.g. Cotton/wool can’t be washed with alkaline soap.

o It may be difficult to get a uniform blend of the fibre in yarn because of different in specific gravity, length, diameter, surface, shape, lustre of the fibre.

TYPES OF BLENDS

Blending fibres in a fabric can help to prevent wrinkling or lower the cost of a garment.

Types of blends and their advantages are as follows: Polyester/Cotton: o Crease Resistanceo Comfort o Less ironing

Linen/silk:o Crease Resistanceo Lustreo Durableo Drape better

Spandex/Cotton:o Stretchyo Durableo Absorbency

Cotton/Polyester/Rayon:o Strengtho Shineo Softnesso Resilienceo Comfort

Cotton/Silk:o Upholsteryo Smoothnesso Vivacious colouring impacto Skin friendliness

Wool/Polyester:o Warmnesso Breathableo Strengtho Drapability

Cotton/Wool:o Comforto Absorbencyo Warmness

Cotton/Rayon:o Absorbencyo Durabilityo Smoothness, shininesso Comforto Cool effect

Rayon/Polyester:o Strengtho Crease resistanceo Comforto Durabilityo Absorbencyo Uniformity

Linen/Cotton:o Strengtho Lustreo Wrinkle resistanceo Comforto Durable

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