基于生物酶制剂的绿色皮纤维分离松散技术  

Bio-enzyme Based Fiber Opening Technology for Greener Leather Processing

作　　者：胡杨[1,2] 刘兰[1,2] 但卫华[1,2] 但年华[1,2] 

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

出　　处：《中国皮革》2013年第15期16-22,共7页China Leather

基　　金：国家科技支撑计划项目(编号:2011BAC06B11);国家自然科学基金项目(编号:21276164)

摘　　要：试图以α-淀粉酶分离松散牛皮胶原纤维,并与常规石灰法进行了对比。通过扫描电镜观察、组织学染色观察、铬鞣剂在革中的分布以及柔软度测定发现,试验组胶原纤维束的分离松散程度与对照组相当,尤其试验组所得皮革的柔软度相比对照组更佳。同时,试验组所得皮革也具有与对照组相近的力学性能和感官性能,粒面相对完整。此外,与常规工艺相比,采用α-淀粉酶处理得到的废水中的污染物负荷降低,五日生化需氧量/化学需氧量(BOD5/COD)>0.45,说明废水易于生物降解,有望成为替代石灰的环境友好型皮胶原纤维分离松散技术。α- amylase was used in fiber opening, producing comparable results to conventional practice of lime based fiber α- pening technology. An alternative bioprocess, based on α- amylase for fiber opening, was investigated. A control experiment was run in parallel using conventional liming processes. It shows that the extent of opening - up of fiber bundles using α-amylase is comparable to that of control. This has been substantiated through scanning electron microscopic, histology observation, strati- graphic chrome distribution analysis, and softness measurements. Performance of the leather is shown to be on a par with that of control. The process also demonstrates reduction in pollution load compared to that of the conventional process. And the BODJ COD value of the waste water is more than 0.45, which indicates that the waste water is easy to be bio - degradated.

关 键 词：生物酶制剂 分离松散 生皮胶原纤维 环境友好 

分 类 号：TS54[轻工技术与工程—皮革化学与工程]