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如何辨别真棉花与假棉花
更新时间: 2020-09-16 00:00:00  

颜色。正常棉的白色自然,漂白旧棉的白色显假光泽。正常棉纤维外表有蜡质层自然光泽,漂白旧棉无光泽。弹性。正常棉手抓弹性好,漂白旧棉花弹性差。掺混再生棉。再生棉是棉纺厂的下脚料、棉布头等物,是经刀剁、梳棉等手段再生的棉花,鉴别时亦应采用对比方法

看外观。再生棉呈现絮棉状,纤维舒畅但长短差别很大,与正常棉纤维外观自然状态不同。再生棉用手拉扯时,棉束中有长纤维,这是掺入的再生化学纤维。其强度大,不易扯断。将棉花放在紫外线下观察,如有黄、蓝等多种颜色,则是再生棉中的化学纤维所产生的,正常棉花无此颜色。

关键词: 如何 辨别 棉花

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