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The Fabric Stiffness Testing Procedure
2017/12/26
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Stiffness is a special property of fabric. It is the tendency of fabric to keep standing without any support. It is a key factor in the study of handle and drape of fabric. The Stiffness performance of the fabric is an important physical parameter that we study the properties of fabric, such as crisp, drape, and softness.
The fabric stiffness tester uses bending length (also known as overhanging stiffness) and bending stiffness (also called bending stiffness) Mechanical indicators to express "fabric resistance to its curved direction of the shape of the ability to change," collectively referred to as stiffness.
The instrument is suitable for cotton, wool, silk, linen, chemical fiber and other woven fabrics, knitted fabrics and general non-woven fabrics, coated fabrics and other textiles rigid and flexible test, but also for paper, leather, film and other flexible materials Of the rigid and flexible test.
Testing Procedure:
1. To carry out a test the specimen is cut to size 6 in. x 1 in. with the aid of the template.
2. Both the template and specimen are transferred to the platform with the fabric underneath.
3. Now both are slowly pushed forward.
4. The strip of the fabric will commence to droop over the edge of the platform and the movement of the template and the fabric is continued until the tip of the specimen viewed in the mirror cuts both index lines.
5. The bending length can immediately be read off from the scale mark opposite a zero line engraved on the side of the platform.
6. Each specimen is tested four times, at each end and again with the strip turned over.
7. In this way three samples are tested.
8. Finally mean values for the bending length in warp and weft directions can be calculated.
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