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    • 48. 发明授权
    • Aqueous solutions of synthetic tanning agents
    • 合成鞣剂的水溶液
    • US5264000A
    • 1993-11-23
    • US709904
    • 1991-06-03
    • Alain LautonAlois Puntener
    • Alain LautonAlois Puntener
    • C14C3/02C14C3/08D06P1/56D06P5/04D06P5/10C14C3/18C14C3/20
    • D06P1/56C14C3/02C14C3/08D06P5/04D06P5/10
    • Aqueous solutions of synthetic tanning agents comprising(A) a lithium salt of a synthetic, anionic aromatic tanning agent or the anionic non-condensed precursor thereof, and, as optional components,(B) a water-soluble chromium, aluminum, iron or zirconium salt or a mixture thereof, and(C) an alkali metal salt of ethylenediaminetetraacetic acid or of a pyrophosphateare prepared by mixing an aqueous solution of component (A) and optional component (C) with component (B), which may also be in the form of an aqueous solution, and are used as tanning agents for tanning bides or for retanning leather of all kinds. The lithium salts used as component (A) are novel and can be used as stain blockers for polyamide fibres or for enhancing the wetfastness properties of dyeings on polyamide fibres.
    • 合成鞣剂的水溶液,其包含(A)合成阴离子芳族鞣剂的锂盐或其阴离子未缩合的前体,和作为任选的组分,(B)水溶性铬,铝,铁或锆 盐或其混合物,和(C)乙二胺四乙酸或焦磷酸盐的碱金属盐通过将组分(A)和任选的组分(C)的水溶液与组分(B)混合来制备,组分(B)也可以是 水溶液的形式,用作鞣制或鞣制各种皮革的鞣剂。 作为组分(A)使用的锂盐是新颖的,可以用作聚酰胺纤维的阻挡剂或用于提高聚酰胺纤维上的染色的耐湿性。