摘要
试验采用一种新型的鞣制工艺—铬盐微排组合鞣制工艺,以浸酸绵羊皮为原料皮,按照加入铬粉的质量分数大小分为8组对比试验(包括一组空白试验)。比较8组试验鞣制和染色后的废水中,铬含量以及成革的耐湿热稳定性、抗张强度、撕裂强度。结果表明:在该工艺条件下,成革收缩温度达90℃以上;Cr2O3吸收率非常高,均达到89%以上;染色加脂废液中仍含有微量铬;空白试验组的抗张强度、撕裂强度等各项机械性能,均明显低于其余试验组;综合比较得到铬盐微排组合鞣制工艺铬粉最适用量为2%～3%。
A novel ＇ trace emissions＇ chrome combination tanning process was investigated, with pickled sheepskin as raw ma- terial. mium According to mass percent of chrome powder, this experiment was divided into 8 groups, including a blank test. The chro- content in effluent after chrome tanning and dyeing respectively, shrinkage temperature, tensile strength and tearing strength of the leathers in 8 groups were determined and compared with. The results indicate that shrinkage temperatures of the8 groups＇ leathers are all above 90℃. The absorbed rate of chrome all reach 89% after the combination tanning process. There is a very small amount of chrome in the dyeing and fatliquor waste water. The tensile strength and tearing strength of leathers with new process are better than that of leather in blank test. As a conclusion, the most suitable amount of chrome powder is 2% -3% in chrome combination process.
出处
《中国皮革》
CAS
北大核心
2014年第3期3-5,9,共4页
China Leather
关键词
绵羊皮
高吸收
铬鞣
ICP
结合鞣
sheepskin
high exhaustion
chrome tanning
ICP
combination tanning
