头层牛皮的制作工艺是什么-天气预报

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头层牛皮的制作工艺是什么

更新时间： 2020-09-18 00:00:00

组批：即将张幅大小、厚度较近的皮的原皮分类，放在同一个鼓中加工；浸水：此工序的目的是将原皮恢复到鲜皮的状态；脱毛脱脂：将皮中细胞内的油脂及原皮表面的毛脱掉；浸灰：加入碱使皮膨胀到一定的厚度，利于剖层；脱灰、浸酸：将浸灰过程中多余的碱除去；鞣制：利用三价铬离子将皮纤维的胶原基团连接起来；复鞣：补充鞣制作用，提高鞣质含量，缩小部位差；染色：赋于皮革一定的颜色；加脂：让其吸收适量的加脂材料，恢复其原业的柔软度和弹性；干燥：贴板干燥和烘干；涂饰：增加革面的美观。

关键词：牛皮制作工艺什么

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