活性染料蛋白类防沾色剂的制备

以明胶和自制的阳离子交联改性剂WLS为原料,制备了一种阳离子明胶蛋白助剂,并与聚乙烯基吡咯烷酮(PVP)复配,制成一种新型防沾色助剂,应用于活性染料染色棉织物皂洗后处理。以白布沾色K/S值和色布耐皂洗色牢度为评价指标,运用正交试验确定了有利于改善活性染料染色棉织物皂洗防沾色的阳离子明胶蛋白助剂的合成条件,其为:m(明胶蛋白)∶m(WLS)=1∶10,Na OH用量为WLS用量的1.8%,反应温度70℃,反应时间3h;PVP与阳离子明胶蛋白复配质量比为1:50。

The Preparation of Protein Anti-staining Agent for Reactive Dyes

Taking gelatin and self-made cationic crosslinking modifier WLS as raw materials, a kind of cat-ionic gelatin protein additive was prepared and was compounded with PVP to prepare a new anti-staining agent for after-soaping treatment of dyed cotton fabric with reactive dyes. Taking K/S value of stained cloth and color fast-ness to soaping of dyed cloth as evaluation indicators, the preparation conditions of cationic gelatin protein addi-tives was determined by using orthogonal test, which could improve soaping anti-staining property of cotton fabric dyed with reactive dyes. The preparation conditions were: m ( gelatin): m ( WLS) was 1∶14, the dosage of NaOH was1. 8% of that of WLS, the reaction temperature was 70℃ and time was 3h, the quality ratio of PVP to cationic gelatin protein was 1∶50 .