The re-tanning agents prepared by collagen powder,acrylic re-tanning agents modified by collagen,hydroxyl-terminated hyperbranched polymer re-tanning agents and re-tanning agents of the re-tanning agents prepared by collagen powder and hydroxyl-terminated hyperbranched polymer with the mass ratio of 1∶1 as four kinds of re-tanning agents,then they were used in sheep wet blue garment leather re-tanning process,and the re-tanning application performance were investigated.The results show that acrylic re-tanning agents modified by collagen exhibited good re-tanning effect,which has a very good filling performance.The shrinkage temperature,tensile strength and tear resistance all have been improved,the resistance to dry rubbing is good,which will not emerge fading phenomenon.%将胶原蛋白粉制备的复鞣剂、胶原蛋白改性丙烯酸复鞣剂、端羟基超支化聚合物复鞣剂和胶原蛋白粉制备的复鞣剂与端羟基超支化聚合物1∶1复配四种复鞣剂分别应用于绵羊蓝湿服装革的复鞣工序中,并对其复鞣应用性能进行了考察.结果表明:胶原蛋白改性丙烯酸复鞣剂表现出良好的复鞣效果,该复鞣剂具有很好的填充性能,可以改善坯革的收缩温度、抗张强度、撕裂强度,同时具有良好的染料耐干擦性能,不会产生"败色"现象.
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