Cleaner Chrome Tanning - A Non-Pickling Process Using an Aliphatic Aldehyde as Pre-tanning Agent

被引:0
作者
Luo Jian-Xun [1 ]
Li Jing [1 ]
Liao Xue-Pin [1 ]
Zhang Wen-Hua [1 ]
Shi Bi [1 ]
机构
[1] Sichuan Univ, Natl Engn Lab Clean Technol Leather Mfg, Chengdu 610065, Peoples R China
来源
JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS AND CHEMISTS | 2012年 / 96卷 / 01期
关键词
AUXILIARY AGENTS;
D O I
暂无
中图分类号
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号
0805 ; 080502 ; 0821 ;
摘要
Tannery effluent with high salinity can have a serious environmental impact. The pickling process that involves the use of sodium chloride and acids is one of the main origins of salt pollution. In this study, a non-pickling chrome tanning technology was developed. A macromolecular aliphatic aldehyde, PTA, was synthesized and employed to pre-tan bated pelt before chrome tanning so that the conventional pickling process was eliminated. It was found that PTA possesses moderate tanning property itself and favours the penetration of chrome, resulting in a chrome exhaustion of 90%. Meanwhile, the performance of leather was comparable to the conventionally processed leather in terms of hydrothermal stability and property evaluations.
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页码:21 / 26
页数:6
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