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[纺莱赛尔喷丝板 Spinneret for Lyocell]

纺莱赛尔喷丝板 Spinneret for Lyocell

价格:￥0.00市场价:￥0.00

将干法纺丝与湿法纺丝的特点结合起来的化学纤维纺丝方法，又称干喷-湿纺，简称干湿纺。    莱赛尔纤维俗称“天丝”,以天然植物纤维为原料，于20世纪90年代中期问世，被誉为近半个世纪以来人造纤维史上最具价值的产品。兼具天然纤维和合成纤维的多种优良性能，莱赛尔是绿色纤维，其原料是自然界中取之不尽用之不竭的纤维素，生产过程无化学反应，所用溶剂无毒。     Lyocell纤维物理机械性能优良，尤其是湿强与湿模量，接近于合成纤维。Lyocell纤维具有棉纤维的舒适性、粘胶纤维的悬垂性和色彩鲜艳性，又具有真丝的柔软手感和优雅光泽，可以纯纺，也可与其它天然纤维、合成纤维或再生纤维混纺、交织或复合，也可做成非织造布、纸张与过滤材料等。 Lyocell is a form of rayon which consists of cellulose fiber made from dissolving pulp (bleached wood pulp) using dry jet-wet spinning.  Lyocell fiber is eco-friendly since products made from it can be recycled and lyocell is biodegradable because it is a cellulosic fiber. Lyocell shares many properties with other cellulosic fibers such as cotton, linen, ramie and viscose rayon. Some main characteristics of lyocell fibers are that they are soft, absorbent, very strong when wet or dry, and resistant to wrinkles. Lyocell fabric can be machine washed or dry cleaned, it drapes well, and it can be dyed many colors, and can simulate a variety of textures such as suede, leather, and silk.
[喷丝头类型 Spinneret Type]

湿纺喷丝板类型 Spinnerets Type

价格:￥0.00市场价:￥0.00

<h3>湿纺喷丝头</h3>湿法纺丝是将溶液法制得的纺丝熔液从喷丝头的细孔中压出呈细流状，然后在凝固液中固化成丝。由于丝条凝固慢，所以湿法纺丝的纺丝速度较低，一般为50～100m/min，而喷丝板的孔数较熔体纺丝多，一般达4000～2000孔。湿法纺丝的特点是工艺流程复杂，投资大、纺丝速度低，生产成本较高。一般在短纤维生产时，通常，不能用熔体法纺丝的成纤高聚物，才用湿法纺丝和生产短纤维和长丝束。腈纶、维纶、氯纶和粘胶多采用湿法纺丝。  Spinnerets for Wet SpinningProcess of wet spinning is used for polymers that need to be dissolved in a solvent to be spun. The spinneret is submerged in a chemical bath that causes the fiber to precipitate, and then solidify, as it emerges. The process gets its name from this "wet" bath. Acrylic, rayon, aramid, modacrylic, and spandex are produced via this process.[A variant of wet spinning is dry jet-wet spinning, where the solution is extruded into air and drawn, and then submerged into a liquid bath. This method is used in Lyocell spinning of dissolved cellulose.

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