| 摘要 |
一种用以形成经无铬复鞣之皮革的方法，其包含：(a)令白湿皮与复鞣剂接触，以该白湿皮之湿重为基准计，该复鞣剂之用量以固体重量计为1%至8%；且该复鞣剂系选自下列所组成之群组：i)水性乳液聚合物，系包含：作为共聚合单元，以该乳液聚合物之重量为基准计，2重量%至35重量%之承载至少一个环氧基的乙烯系不饱和单体，该乳液聚合物具有重量平均分子量为2,000至100,000；ii)选自包含哌、哌水合物、哌之盐、及其组合之群组之化合物；以及iii)i)与ii)之组合；(b)加热该经接触之白湿皮；以及(c)乾燥该经接触且加热之白湿皮。本申请案亦关于藉由本发明之方法所形成之经无铬复鞣的皮革。; ii) a compound selected from the group comprising piperazine, piperazine hydrates, salts of piperazine, and combinations thereof; and iii) combinations of i) and ii); (b) heating the contacted wet white; and (c) drying the contacted, heated wet white is provided. The present application also relates to chrome-free retanned leather formed by the method of the invention. |
