制革生产中脱脂剂脱脂效果表征方法的研究  

Characterization Methods of Degreasing Effect of Different Degreasers in Leather Processing

作　　者：罗晓民[1] 丁绍兰[1] 任龙芳[1] 张军民[1] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021

出　　处：《中国皮革》2008年第7期19-21,24,共4页China Leather

基　　金：陕西省教委专项基金资助项目(05JK149)

摘　　要：分别用二氯甲烷、四氯化碳、石油醚作油脂萃取剂,用索式抽提法对皮革原料皮、在制品及不同脱脂剂脱脂裸皮进行萃取试验,并同时制作组织切片对结果进行直观验证,结果表明:二氯甲烷能够较完全地萃取脱脂裸皮中的油脂;脱脂裸皮二氯甲烷萃取物质量分数的高低,能够说明脱脂裸皮中油脂质量分数的高低,从而表征相应脱脂剂脱脂效果的好坏。二氯甲烷萃取物质量分数越小,表明脱脂剂脱脂效果越好。The extraction tests of crust leather degreased by different degreasers, raw skins and leathers were carried out by soxhlet method with the dichloromethane, carbon tetrachloride and petroleum ether as grease extractant. The results were verified by tissue sections. It shows that dichloromethane could completely extract the grease in crust leather. The extract content of di- chloromethane also indicates the oil content in crust leather. Thereby, the degreasing effect of degreaser could be characterized by the extract content. The less the extracts content of dichloromethane, the better the degreasing effect.

关 键 词：脱脂剂 脱脂效果 表征 

分 类 号：TS54[轻工技术与工程—皮革化学与工程]