蓝湿革酶回软工艺设计及其效果研究  

Study on the Enzyme Resoften Process Design and Its Effect of Wet Blue Leather

作　　者：温会涛 但晔 常赛 王建群 杨长凯 但卫华[1,2] WEN Hui-tao;DAN Ye;CHANG Sai;WANG Jian-qun;YANG Chang-kai;DAN Wei-hua(National Engineering Research Center of Clean Technology in Leather Industry,Sichuan University,Chengdu 610065,China;Fujian Key Laboratory of Green Design and Manufacture of Leather,Jinjiang 362271,China;School of Mechanical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学制革清洁技术国家工程研究中心,四川成都610065 [2]福建省皮革绿色设计与制造重点实验室,福建晋江362271 [3]四川大学机械工程学院,四川成都610065

出　　处：《皮革与化工》2020年第6期1-11,共11页Leather And Chemicals

基　　金：福建省自然科学基金项目(2019J06025)。

摘　　要：为提高蓝湿革的酶回软效果,选用自制的复合酶和2种工业酶制剂,设计正交试验,以蓝湿革的回软效果、废液中铬离子和羟脯氨酸含量、经过湿态整理所得坯革的感官性能、柔软度和视密度等作为评价指标,确定最优工艺方案为:复合酶A,用量1.5%,作用时间15 h;通过显微镜观察蓝湿革粒面,毛孔清晰,立体感强;通过检测坯革物理机械性能,撕裂强度、规定负荷伸长率、崩破高度和抗张强度均符合鞋面用皮革要求。为制备既轻又软的皮革提供了一种新思路。In order to investiga te the effect of enzyme resoften of wet blue leather,the self-made composite enzyme and two kinds of industrial enzyme preparation,enzyme dosage and action time were selected to design the orthogonal test.Taking the rewetting effect of wet blue leather,the content of chromium ion and hydroxyproline in waste liquid,sensory properties,softness and apparent density of crust leather after wet finishing as evaluation indexes,the optimal scheme was determined as follows:compound enzyme A,dosage of 1.5%,reaction time of 15 h.The results showed that the grain surface and pore of wet blue leather was clear and stereoscopic;the tear strength,elongation at specified load,bursting height and tensile strength of the crust leather met the requirements of upper leather.It provides a new way to prepare light and soft leather.

关 键 词：制革工程 蓝湿革 工艺设计 回软 酶制剂 

分 类 号：TS541[轻工技术与工程—皮革化学与工程]