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通过对233 dtex/36 f工业丝的纺丝、初捻、复捻、帘子布织造等工序的生产实践,探讨熔体黏度、纺丝组件、纺丝温度、热辊温度、初复捻锭速、尼龙钩质量、织造车速、引纬参数、边丝处理等参数对生产控制和产品质量的影响。结果表明:熔体相对黏度控制在78~80,纺丝温度控制在302℃,提高纺丝组件过滤精度,严格控制热辊波动范围,可以提高233 dtex/36 f工业丝的质量均匀性;初捻锭速选用5 000 r/min、尼龙钩选用235 mg,复捻锭速选用4 500 r/min、尼龙钩选用250 mg,捻线强力保持率能控制在94%以上;织造车速控制在600~650 r/min时,调整优化引纬参数,引纬初始位置延长5°,引纬到达位置提前5°,主辅喷嘴气压均控制在0.45 MPa,对边丝进行特殊倒筒处理,能够提高白坯布整体质量;工艺优化后,细旦浸胶帘子布质量得到改善,挑出率提高18.5%,满足了市场需求。
Through the practice of spinning, initial twisting, twisting and cord weaving of 233 dtex / 36 f industrial yarn, the effects of melt viscosity, spinning components, spinning temperature, hot roll temperature, , Nylon hook quality, weaving speed, weft insertion parameters, edge processing and other parameters on the production control and product quality. The results show that the relative viscosity of the melt is controlled at 78-80 and the spinning temperature is controlled at 302 ℃, which can improve the filtering accuracy of the spinning components and strictly control the fluctuation range of the heat roller, which can improve the quality uniformity of 233 dtex / 36 f industrial yarn. Twisting spindle speed selection of 5 000 r / min, nylon hook selection of 235 mg, re-twisting spindle speed selection of 4 500 r / min, nylon hook selection of 250 mg, twisting force retention rate can be controlled at 94%; weaving speed control at 600 ~ 650 r / min, the weft insertion parameters are adjusted and optimized. The initial position of weft insertion is extended by 5 ° and the weft insertion position is advanced by 5 °. The pressure of main and auxiliary nozzles is controlled at 0.45 MPa. White cloth overall quality; process optimization, fine denier dipped cord fabric quality has been improved, the singling rate increased 18.5%, to meet the market demand.