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Author(s): |
Dexiao Han, College of textiles, Tianjin Polytechnic University, Tianjin, 300160, China
Weiguo Dong, College of textiles, Tianjin Polytechnic University, Tianjin, 300160, China |
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Abstract: |
This mainly introduced the technical principle and process of core spun spandex in the HF 41－01 －4 prototype spinning machine, and some notice should be paid attention to. As for the three main parameters— the front roller speed, spindle speed, core yarn delivery roller speed, a series of experiments on spinning were carried out, the batter spinning technology was determined, so as to obtain high-quality core spun spandex. Various yarn properties spun under different technologic conditions were measured, it is concluded that, the most affected factor was the pre-draft of spandex and core spun yarn twist multiplier, which should be used reasonable and matching the purpose of fabrics. Low pre-draft may cause the worse elasticity of yarn, while high pre-draft may lead to fiber beheading and make spinning difficult. With the increase of twist, core spun spandex elongation at break of the first increase then decline, there is a best value. Initial results of our research are certainly significant meaningful guiding to the practical manufacture.
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