GB/T 43015-2023 specifies the test method for the dry heat shrinkage of synthetic staple fibers, applicable to various types of synthetic staple fibers, with composite staple fibers also referenced for use. Its core principle involves treating the sample with dry hot air and calculating the shrinkage rate based on the change in length before and after treatment, thereby characterizing the thermal stability of the fiber. The test requires conditioning the sample to moisture equilibrium first, followed by using instruments such as a single-fiber thermal shrinkage tester, an electric blast drying oven, tension clamps, an electronic balance, and a contrast color velvet board. The test is conducted under specified temperature, time, and pretension conditions to provide a unified technical basis for quality control in synthetic fiber production, product development, and application selection.
| Status | Active | ||
|---|---|---|---|
| CCS | W50 | ICS | 59.060.20 |
| Release Date | 2023-09-07 00:00:00 | Implementation Date | 2024-04-01 00:00:00 |
