怎么鉴别拖把的质量 从四大方面鉴别拖把质量好坏→ ...
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因此，胶棉拖把头是质量好坏直接关系着胶棉拖把的易用性和耐用性。 胶棉拖把头的品质鉴定： （1）胶棉成分，好的胶棉头，主要成份是PVA，差的胶棉头PVA含量很少，主要变成了价格低廉的淀粉，作为普通的销费者可以这样区分它的，好的胶棉头，它出厂是软性的，含有一定保湿水份，因为PVA 占比非常高，具有防霉性，如果出厂的胶棉头是硬化的，作为普通消费者来讲，可以认为工厂没有做高品质胶棉的能力，其胶棉头的主要成份已经变为了淀粉。 淀粉的价钱每吨比全新聚乙烯醇便宜几千块。
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