多功能牛毛蛋白复鞣剂在制革工业中的应用  

Application of multi-functional bovine hair hydrolysate retanning agent in tannery

作　　者：张文昌[1] 王亚楠[1] 余跃[1] 梁涛 周建飞[1] 石碧[1,2] ZHANG Wenchang;WANG Ya＇ nan;YU Yue;LIANG Tao;ZHOU Jianfei;SHI Bi(National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu 610065,China;The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学制革清洁技术国家工程实验室,四川成都610065 [2]四川大学皮革化学与工程教育部重点实验室,四川成都610065

出　　处：《中国皮革》2018年第9期1-7,20,共8页China Leather

基　　金：国家自然科学基金(21476149,21276165)

摘　　要：分析了由保毛脱毛回收的牛毛水解制备的蛋白复鞣剂（BHH）的氨基酸组成，测定了其各组成氨基酸对自由基的清除作用。考察了BHH对皮革Cr（Ⅵ）产生的抑制作用，对皮革的填充作用及对加脂剂在皮革内分布的影响。BHH中主要含有14种不同种类的氨基酸，半胱氨酸含量最高（18．83％）。半胱氨酸对羟自由基和ABTS自由基的清除率极高。将BHH用于复鞣，对皮革中Cr（Ⅲ）氧化成Cr（Ⅵ）具有显著的抑制作用。同时，BHH还对坯革具有良好的选择性填充作用，有利于加脂剂在革内的合理分布，减小部位差。Bovine hair hydrolysate （BHH） was prepared as a multi-functional retanning agent by hydrolysis of bovine hair recovered from hair-saving unhairing process. The amino acids composition of BHH was analyzed. The scavenging effects of amino acids existed in BHH on hydroxyl radical and ABTS radical were investigated. Then the effects of retanning with BHH on Cr（ Ⅵ） prevention in leather, retanning/filling performance and distribution of fatliquors in leather were investigated. It is found that the content of cysteine （18. 83%） is the highest among 14 kinds of amino acids in BHH. Cysteine exhibits strong scavenging activity to hydroxyl radical and ABTS radical. Retanning with BHH could effectively inhibit the oxidation of Cr（ Ⅲ ） into Cr（Ⅵ） in leather. Moreover, BHH exhibits satisfactory selective filling effect, which is beneficial to the reasonable distribution of fatliquors in leather and the reduction of section difference of leather.

关 键 词：牛毛 三价铬 六价铬 复鞣 填充 加脂 

分 类 号：TQ94[化学工程]