Shape memory covering yarn silk stockings
A memory and yarn technology, applied in socks, yarn, pantyhose, etc., can solve the problem of high price, and achieve the effect of high cost performance, beautiful leg lines and good air permeability
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[0011] 1. Selection of raw materials
[0012] The core yarn is selected from PTT shape memory filament (2), which has a linear density of 22.5 dtex, a breaking strength of 3.0 cN / dtex, and a breaking elongation of 67.5%.
[0013] Outsourcing fibers are mainly cotton fibers and nylon fibers. Cotton fibers are mainly long-staple cotton, with a linear density of 1.3dtex, a breaking strength of 2.5cN / dtex, and a breaking elongation of 7.0%; nylon fibers have a linear density of 5.5dtex, a breaking strength of 5.2cN / dtex, and a breaking elongation of 35.5 %.
[0014] 2. Spinning of core-spun yarn
[0015] Cotton fibers are spun into quantitative rovings through the processes of opening and cleaning, carding, combing, drawing, and roving. On the ring spinning frame modified by the device, the roving (1) is fed from the rear roller, and the PTT shape memory is long. The silk (2) is fed from the front roller, and the cotton roving (1) and the PTT shape memory filament (2) are outpu...
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