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大发彩票app下载地址
大发彩票app下载地址
大发彩票app下载地址
大发彩票app下载地址
大发彩票app下载地址
联系大发彩票app下载地址

大发彩票app下载地址

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大发彩票app下载地址资讯
PVC人造革浅谈
人造革制品已经是覆盖生活的方方面面,座椅、沙发、皮鞋、包包……人造革制品可以说是随处可见。人造革主要有PVC人造革和PU人造革两种,分别对应的是第一第二代大发彩票app下载地址。
PVC人造革(PVC革),是在织物上涂覆PVC树脂、增塑剂、稳定剂等助剂制成的糊,或者再覆合一层PVC膜,然后经一定的工艺过程加工制成的。制品强度高,加工容易,成本低廉。可做各种箱包、座套、衬里、杂物等。但耐油性、耐高温性差,低温柔软性和手感较差。
PVC人造革是人造革的主要品种,除按基材和结构可分若干类外,一般按生产方法分为如下几种。
(1)涂刮法PVC人造革 如①直接涂刮法PVC人造革 ②间接涂刮法PVC人造革,又叫转移法PVC人造革(包括钢带法和离型纸法);
(2)压延法PVC人造革;
(3)挤出法PVC人造革;
(4)圆网涂布法PVC人造革。
从用途上又可分为鞋用、箱包用、铺地材料等若干种。对同一种PVC人造革来说,按不同的分类方法,可分别属不同类别。如市布人造革,既可制成普通涂刮革,也可制成泡沫革。
大发彩票app下载地址
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