Method for testing water repellency of wool yarns
A testing method and wool yarn technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of increasing enterprise costs, affecting product quality, unable to judge the water repellency effect of yarns, etc., achieving low labor intensity and operation. simple effect
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[0014] The present invention will be further elaborated below.
[0015] Preparatory work, the conditions and tools that need to be prepared include a 1000ml beaker, boiling water, cold water, a thermometer, a stopwatch, yarn, and the yarn needs to be placed under standard constant temperature and humidity conditions for 24 hours to balance the moisture absorption of the yarn , Pour 100°C water into the beaker, then add cold water to adjust, test with a thermometer, make the water temperature reach 50°C; take a yarn about 30cm long, cut it into a length of about 5mm; put the yarn into six rows Finally, put it into the beaker, and press the stopwatch to start timing at the same time. Note that the yarn cannot be attached to the inner wall of the beaker when putting it in, so as to prevent inaccurate test results; when the yarn is completely submerged, stop timing; record the time on the stopwatch Time: Repeat the above operation at least 10 times, and take the average value of t...
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