Скачать или смотреть TTQC || Fabric Testing || Crease Resistance and Recovery || Wrinkle || Shirley Tester [বাংলায়]

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Crease
Crease Resistance
Crease recovery
Difference between crease resistance and crease recovery
Advantages of Resin Treatments
Disadvantages of Resin Treatments
Methods of Measuring Crease Recovery

The Tootal test.
The Shirley crease recovery test.
Continental method.
The L.I.N.R.A sunray crease evaluator.

Shirley Crease Recovery Test:
Crease Recovery is measured quantitatively in terms of crease recovery angle.
Principle
Preparation of Test Specimens
Construction
Working Procedure


Wrinkle: (Many says, same as crease)
Short and Irregular creases
Three dimensional creases
They form when fabric undergo double curvature.

Crease Mark

Causes of Crease:
Applied Pressure
Temperature Change
Relative Humidity Change
Poor Construction
Poor fitting garments

Factors of Crease:
Fibre Properties
Co-efficient of Friction (high inter fibre friction will not allow to reshape)
Bending Modulus
Bending Recovery
Fabric Construction
Yarn Construction
Types of weave/knit

Minimizing Crease:
 Using thick fibre
 Discouraging rapid change in Temperature and Relative Humidity
 By using flat seam during sewing
 Treating chemically during finishing