皮革染料工业用于一般用于纺织染料,皮革染料倾向于建立一个专门的联苯胺代用品,金属络合染料和活性染料。{dj2}皮革染料和皮革纤维的要求非常良好的耐光性,洗涤,摩擦牢度,良好的水平与安全功能的使用以及xx的特点染色。相比之下,国外皮革染料专用品种,质量好,如拜耳,巴斯夫,瑞士桑托斯公司,有几十个专用皮革染料。自1995年以来,德国政府禁止生产和销售商可以通过在纺织品和皮革制品的偶氮染料的致癌芳香胺,对中国的染料工业和皮革业,以极大的震动。皮革染色染料通常直接,酸性染料,染料已被禁止的品种普遍使用的用于皮革染色,如直接黑BN,酸性大红GR等等,因此染料,皮革的专用染料的发展,已成为一项紧迫的任务。
另一方面,从形式染料,染料由于其吸湿性稳固,容易引起权衡不允许的,使用的污染会发生,对环境的危害;和液体染料,不但易于使用,并在皮革染色使用具有良好的匀染,和pH值,液比,温度不敏感,因此液体染料已成为皮革专用染料的发展趋势之一。如汽巴-嘉基介绍了在制革厂Sellasat系列新型液体染料已被广泛应用。 06.8.28
Liquid dye will become the exclusive leather dyes future development trend
leather dyes used in industry in general are used for textile dyes, leather dyes tend to develop a dedicated benzidine substitutes, metal complex dyes and reactive dyes. Exclusive leather dyes and leather fiber requirements very well with good light-fastness, washing, rubbing fastness, good level dyeing with the use of safety features as well as non-toxic characteristics. In contrast, foreign leather dyes exclusive varieties, good quality, such as Bayer, BASF, Switzerland Santos companies have dozens of exclusive leather dyes. Since 1995, the German government to ban the production and sales can generate carcinogenic aromatic amines by the azo dyes in textiles and leather products, to China’s dyestuff industry and the leather sector, a great shock. Leather dyeing dyes are commonly used for direct, acid dyes, dyes have been banned a number of varieties are commonly used in leather dyeing dyes, such as Direct Black BN, Acid Scarlet GR, etc. Therefore, the development of dedicated leather dyes has become an urgent task.
On the other hand, from the form of dye, the dye due to its hygroscopic solid, and easily give rise to weigh not allowed, and the use of contamination would occur, the environmental hazards; and liquid dye is not only easy to use, and use in leather dyeing has a good level dyeing, and on the pH value, liquid ratio and temperature is not sensitive, so the liquid dye has become the exclusive leather dyes, one of the development trend. Such as Ciba - Geigy introduced a new type of liquid dye in the tannery Sellasat series has been widely applied. (06-8-28)