中国皮革

2003, (01)

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坚木栲胶对皮革中六价铬预防作用的研究
Study on preventive effect of quebracho extract on hexavalent-chromium in leather

孙根行,俞从正,曹洁,何旭
Sun Genxing, Yu Congzheng, Cao Jie, He Xu(Leather Engineering College, Shaanxi University of Science and Technology, Xianyang 712081)

摘要(Abstract):

系统地研究了坚木栲胶对皮革中 Cr( )的预防作用。试验证明 :经多种不同加脂剂分别加脂后的的铬鞣革 ,在 p H=5 .0 - 6.0范围 ,用适量坚木栲胶和铬复鞣后 ,分别经 2 4 h、85℃恒温干燥箱加热和 2 4 h紫外光照射强化处理 ,经检测皮革中 Cr( )的量均显著降低 ,许多情况下皮革中 Cr( )的量小于 5 mg/kg,符合国际标准 [1]。
Preventive effect of quebracho extract on Cr(Ⅵ) in leather is studied systematically.The results proved that the chromic tanned leathers,which are separately fatliquored with several kinds of fatliquors and in the range of pH-value from 5.0 to 6.0 are retanned with quebracho extract and chromitan,are separately heated for 24h at 85℃ in thermostatic drying stoveand and lighted for 24h with ultraviolet light, that the content of Cr(Ⅵ) in the leather is obviously decreased or is lower than 5mg/kg,which is accorded with the international standard [1].

关键词(KeyWords): 坚木栲胶;六价铬;预防;皮革
quebracho extract Cr(Ⅵ) prevention leather

Abstract:

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基金项目(Foundation): 陕西省教育厅科学研究计划资助;; 陕西省自然科学基金资助

作者(Author): 孙根行,俞从正,曹洁,何旭
Sun Genxing, Yu Congzheng, Cao Jie, He Xu(Leather Engineering College, Shaanxi University of Science and Technology, Xianyang 712081)

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