Hollowness of the hollow polyester UDY increased after cool drawing, decreased after heat drawing, and was down a little while increasing drawing ratio.
冷拉伸后,涤纶未拉伸丝的中空度变大,热拉伸则相反;随着拉伸倍数的提高,涤纶未拉伸丝的中空度有所下降。
Hollowness of the hollow polyester UDY increased after cool drawing, decreased after heat drawing, and was down a little while increasing drawing ratio.
冷拉伸后,涤纶未拉伸丝的中空度变大,热拉伸则相反;随着拉伸倍数的提高,涤纶未拉伸丝的中空度有所下降。
应用推荐