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丝棉分为几种应该怎样鉴别
更新时间： 2020-09-23 00:00:00  

1、眼观。丝棉色泽呈乳白，偶有未拣净的薄茧片的为真货；色泽纯白，找不到薄茧片的为假品。

2、手摸。丝棉丝细柔软，极易粘手的为真货；而不粘手的为假品。

3、火烧。丝棉经火烧后，发出烧毛发似的气味，被烧的纤维末端结成一个黑疙瘩，用手一捏粉碎的为真货；而没有烧毛发味，且烧过的纤维末端结的疙瘩很硬，不易捏碎的是假品。

关键词： 分为 应该 怎样 鉴别

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