Hot water shrinkage (HWS)

Hot water shrinkage (HWS) explained

The hot water shrinkage test can be done at 90°C and 100 °C of yarns according to BISFA 2004 Ch 11 or ASTM D 4974-022. A normal procedure for PET yarns is 30 minutes at 90°C or 100°C.  Usually, the average of four measurement samples are reported. Of course measurements can be done at costumer specified settings. Next to that mulifilament yarns of any type can be tested.

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