浅色植鞣工艺研究

Research on Light-color Vegetable Tanning Process

文章对浅色植鞣工艺进行了实验研究。结果表明,去酸时添加硫代硫酸钠2.0%~4.0%、萘磺酸钠2.0%和醋酸钠1.0%,转动1.5 h,pH 3.8,可以加速鞣剂渗透;鞣制时添加EDTA 0.1%、焦亚硫酸钠1.0%和柠檬酸0.2%,鞣液颜色浅亮不加深,湿态皮革颜色浅;漂洗时添加草酸0.5%、萘磺酸2.0%、植物鞣剂助剂L 1.0%,成革颜色米白鲜亮。优化后的浅色植鞣工艺可为生产制造高品质的植鞣革提供参考。

The light-colored vegetable process was studied in the paper.The results show that,2.0%~4.0%sodium thiosulfate,2.0%sodium naphthalene sulfonate and 1.0%sodium acetate are used for deacidification,the pH is 3.8,and the time is 1.5 h,which can accelerate the penetration of vegetable tannin;0.1%EDTA,1.0%sodium metabisulfite and 0.2%citric acid used in the tanning process can make the color of tanning solution and the wet leather light;0.5%oxalic acid,2.0%naphthalenesulfonic acid,and 1.0%vegetable tannin auxiliary L used in the rinsing can make the leather bright and off-white.The optimized light-color vegetable tanning process can provide scientific reference for the production of high-quality vegetable leather.