Fabric Density

Measurement and

Control

FactsFabric weight increases as fabric density increases

Fabric weight decreases as fabric density decreases

Weight Versus DensityThe chart below shows how fabric weight and fabric density are related. Using the data from a continuous density measurement system to set up and adjust a finishing machine, the desired weight can be obtained.

Why change from weighing fabric (GSM) to measuring the density (PPI or CPI)?

Because weight measurements are only small samples of the fabric. Fabric density can be measured continuously, providing complete data for every meter of fabric.

Measuring the density of every meter of fabric provides the tool to

• Reduceweightvariability• Eliminateout-of-specfabric• Producehigherqualityfabric

Density versus Weight

Weight (gsm)

Den

sity

(C

PI)

Target 60.2 CPI for 140 GSM

135 136 137 138 139 140 141 142 143 144 145 146

63.0 62.5

62.0 61.5

61.0

60.5

60.0

59.5

59.0

58.5

58.0

Automation Partners Inc. provides fabric density measurement sensors and control systems.

The Fabric Density Measurement Sensor

ThePSM-200SensorSystemistheindustry’smostreliable,hands-off,lineardensity measurement tool. It provides continuous, reliable and completely automatic measurement of pick or course count—nooperatorexperienceisrequired.

Operation is independent of •operator skill.Nopriorset-uporprogramming •fordifferentstylesorfabrictypes isrequired.Notaffectedbycolor,yarnsize, •fabric speed or moisture.

The sensor is an optical/electronic device using infrared light to determine the structure characteristics of the fabric.

Thereisnocamerarequiringcalibrationormaintenanceandnoradiation—nohazardto personnel and no special permits to import or use.

Systems That WorkThePSM-200SensorSystemprovidescriticaldata on your finishing operation, but it is just the first step in reaching maximum efficiency and profitability. The basic system can easily be expandedwithplug-inoptionsandnetworkedwithin your production line for advanced capabilities.

Systemsforautomaticfabricdensitycontrolcanassure density, weight and shrinkage uniformity onstenters,compactorsandsanforizers.

Density and Shrinkage Monitoring and Control

Measurefabricdensityandspeedattheentryandexitofasanforizerandcontrolfordesiredmachine shrinkage or finished fabric density using feedforward control at the entry.

TheSMS-400Systemprovidesaccurate,real-time fabric shrinkage measurement and control, eliminating manual checking of shrinkage and providestheadditionalbenefitofreal-timefabricdata.

ThesystemusestwoPSMSensorsandasignalprocessor with control outputs to automatically control machine shrinkage or finished fabric density.

Stenter Overfeed Control

ThissystemusestwoPSM-200SensorSystemstomeasurefabricdensityandcontroloverfeedofthestentertoachieve uniform fabric density and weight.

FabricdensityismeasuredattheentryofthestenterandthecontrollerusestheAPI-developedfeedforwardcontrol algorithm to adjust the overfeed to achieve the desired finished fabric density and weight.

Moreuniformfabricresultsinhigherqualityfabric,betterpredictionofshrinkageandbettershadeconsistencyofdyed and napped fabrics.

Why Automation Partners Inc?Premier manufacturer with 1,000 •successful installations worldwide generatingsatisfiedcustomers.Sensors and control systems that can •be easily networked and expanded to suit your company’s changing operations.Fieldprovenfabricfinishing•measurement and control systems withdocumentedresults.InvestmentJustificationthatexplains•your potential savings using our solutions.Moneybackperformanceguarantee.•Continuedserviceandlocalsupport.•

Call today!

Tubular Compaction Control

A system to automatically control fabric compaction in tubular compactors using finished fabric density as the controlled variable. The result is predictable fabric length shrinkage.

APSMSensorprovidesthecoursecountmeasurementfortheCCS-300CompactionControlSystem.

An optional width measurement device can be added to provide both fabric density and fabric width control for finishingthehighestqualityfabric.

Automation PartnersInc.—Your Technology Partner

Contact Us

Expandable.PlugandPlay.StartwiththePSMSensorandExpand.

AutomationPartnersInc.hasprovidedelectronicsolutionstothetextileindustrysince1990.Withthousandsofsensorsystemsandcontrolsystemsinstalledworldwide,APIisthemarketleader in this technology.

You can count on this experience and performance to be assured of getting the best product—and the best service—at a fair price.

SalesTel:+19516989901or18004661203Fax:+19516989932

info@automationpartners.comwww.automationpartners.com

Mailing address:AutomationPartnersInc.364BlodgettStreet,SuiteBCotati,California94931-8701USA

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