Hot Air Thermal Shrinkage Tester for Yarn conforms to ASTM D5591 is used for the measurement of the thermal shrinkage force of yarns and cords in air at controlled temperature.
Hot Air Thermal Shrinkage Tester for Yarn Principle:
A specified length of yarn or cord is fixed at a grip and the other end is mounted with a pretension mass, then the mass is removed and the end was connected to a loadcell. After that the yarn or cord is exposed to dry heat at a controlled temperature. The shrinkage force induced in the specimen is read from the tester.
Hot Air Thermal Shrinkage Tester Technical data
Hot Air Thermal Shrinkage Tester for Yarn Standard:
ASTM D 5591: Standard Test Method for Thermal Shrinkage Force of Yarn and Cord with a Thermal Shrinkage Force Tester.
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