Oxidizing degradation of valonia extract and utilization of the products.: Part 3 -: Auxiliary tanning effects of degraded products using 20% and 30% H2O2

被引：0

作者：

Di, Y ^{[1
]}

Shi, B ^{[1
]}

Song, LJ ^{[1
]}

Wang, QA ^{[1
]}

机构：

[1] Sichuan Univ, Minist Educ, Key Lab Leather Chem & Engn, Chengdu 610065, Peoples R China

来源：

JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS AND CHEMISTS | 2001年 / 85卷 / 05期

关键词：

Aluminum - Chromium - Degradation - High temperature effects - Oxidation - Shrinkage - Tanning;

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：

Perval 20 and Perval 30 are oxidized degraded products of valonia extract prepared using 20%, and 30% H2O2 (w/w). Single-bath combination tannages of Perval 20 with Cr(III) or Al(III) and tanning using Perval 30 - Cr(III) complex were studied. The combination of 1.5-3.0% Perval 20 and 1.0-1.5% Cr2O3 produced leathers with shrinkage temperatures above 110 C. so did the Perval 30 - Cr(III) complex in similar offers. The combination tannage of 1.8%, Perval 20 and 1.5 Al(III) in a single bath produced leather of Ts=966. 26 C higher than aluminium tanning. The more remarkable synergistic effects of these two products with Cr(III) and Al(III) are due to their increasing carboxyl contents, as shown in the paper. It could be seen that the reduced chrome and chrome-free tannages established here would be more practical because of simplified processes alike to chrome tanning and elimination of the vegetable tanned character of leathers.

引用

页码：171 / 174

页数：4