天然红米红对皮革的染色性能研究

摘要

The dyeing process conditions of the title product for the chrome-tanned leathers were investigated in this paper.The results showed the solubility of the dyestuff in water is good.The acid stability and hard water stability are good, but when in the alkaline medium the dyestuff is discolored seriously.The dyeing ability was improved when it was used in dyeing sheepskin garment leathers.The dyed leather is vivid in color when it was treated with 2.0 ％ dyestuff for 60 minutes at 55 ℃.The rubbing fastness and light fastness are 2-3 and 3-4 grades respectively.%本文探讨了红米红对铬鞣皮革的染色工艺条件,试验结果显示:天然红米红在水中溶解性好,对酸及硬水的稳定性都比较高,遇碱变色严重,用于绵羊服装革的染色时,染料的染色提升性较好,在染料用量2.0%、温度55℃、时间60min染色后,成革颜色纯正,摩擦牢度在2-3级,日晒牢度达到3-4级.