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    • 8. 发明授权
    • Process for preparing a super saturated liquid alkali composition for
reactive dyeing of textiles
    • 制备纺织品活性染色的超饱和液体碱性组合物的方法
    • US5382262A
    • 1995-01-17
    • US874754
    • 1992-04-27
    • Samuel B. Moore
    • Samuel B. Moore
    • C09B67/24D06P1/38D06P1/52D06P1/653D06P1/673D06P3/66C09B67/00
    • D06P1/653C09B67/0072D06P1/5257D06P1/6533D06P1/6735D06P3/66D06P1/38
    • A liquid alkali composition fiber reactive dyeing of cotton and cotton blended fabrics. The liquid alkali is a solution of an alkali metal hydroxide and its carbonate formed by reaction of liquid CO.sub.2 with the alkali metal hydroxide solution. The resulting supersaturated solution has a high enough Total Alkalinity to achieve reaction between the dye and fiber but is sufficiently buffered to achieve this reaction slowly so that the fiber reactive dyes fix in a level, uniform fashion, Preferably the composition is a mixture of potassium hydroxide, potassium carbonate, potassium citrate, and potassium polyacrylate. The citrate and polyacrylate act as dispersants in the dyeing process and also act as crystallization inhibitors in solution. The use of the carbonate compounds of the present invention in place of conventional silicates or phosphorus prevents the discharge of untreatable toxic wastewater into natural waterways.
    • 棉和棉混纺织物的液态碱组合物纤维活性染色。 液态碱是通过液体CO 2与碱金属氢氧化物溶液的反应形成的碱金属氢氧化物及其碳酸盐的溶液。 所得的过饱和溶液具有足够高的总碱度以实现染料和纤维之间的反应,但是被充分缓冲以缓慢实现该反应,使得纤维活性染料以水平均匀的方式固定。优选地,组合物是氢氧化钾 ,碳酸钾,柠檬酸钾和聚丙烯酸钾。 柠檬酸盐和聚丙烯酸酯在染色过程中起分散剂的作用,并且在溶液中也起了结晶抑制剂的作用。 使用本发明的碳酸酯化合物代替常规的硅酸盐或磷防止将不可用的有毒废水排放到天然水道中。