粘胶纤维
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粘胶纤维属再生纤维素纤维。它是以天然纤维素为原料，经碱化、老化、磺化等工序制成可溶性纤维素磺酸酯，再溶于稀碱液制成粘胶，经湿法纺丝而制成。
Viscose fiber of regenerated cellulose fiber.It is a natural cellulose as raw material,
through alkalization, aging, sulfonation processes made soluble cellulose sulfonate, and
then dissolved in dilute lye made by wet spinning of viscose, and made.
粘纤是古老的纤维品种之一。在1891年，克罗斯（Cross）、贝文（Bevan）和比德尔（Beadle）等首先以棉为原料制成了纤维素磺酸钠溶液，由于这种溶液的粘度很大，因而命名为“粘胶”。粘胶遇酸后，纤维素又重新析出。根据这一原理，1893年发展成为一种制造纤维素纤维的方法，这种纤维就叫做“粘胶纤维”。
Viscose fiber is one of the ancient.In 1891, cross (Cross), Bevin (Bevan) and Beadle
(Beadle), first to cotton as raw material to prepare cellulose sulfonate sodium solution, the
solution viscosity is large, thus the name "viscose".Viscose event acid, cellulose and re
precipitation.According to this principle, in 1893 developed into a manufacturing methods
of cellulose fiber, the fiber is called "viscose fiber".
粘胶纤维具有良好的吸湿性，在一般大气条件下，回潮率在13%左右。吸湿后显著膨胀，直径增加可达50%，所以织物下水后手感发硬，收缩率大。
The viscose fiber has good moisture absorption, at generally atmospheric conditions,
moisture regain in 13% or so.Moisture absorption after significant expansion, increased
diameter of up to 50%, so the fabric hand feeling hard water, large shrinkage rate.
普通粘胶纤维的断裂强度比棉小，约为1.6~2.7cN/dtex；断裂伸长率大于棉，为16%~22%；湿强下降多，约为干强的50%，湿态伸长增加约50%。
Ordinary viscose fiber strength than cotton small, approximately 1.6~2.7cN/dtex;
elongation at break greater than cotton, 16%~22%; wet strength decreased much, about
the dry strength of 50%, wet elongation increases to about 50%.
