Crosslinking agents for textile printing fixing agents
    6.
    发明授权
    Crosslinking agents for textile printing fixing agents 失效
    纺织印花固定剂交联剂

    公开(公告)号:US5607482A

    公开(公告)日:1997-03-04

    申请号:US525109

    申请日:1995-09-08

    Abstract: The present invention relates to a method for textile printing with aqueous dispersions in which an organic fixing agent is crosslinked with a blocked polyisocyanate having (i) an average molecular weight of about 800 to about 25,000, (ii) a content of blocked isocyanate groups, calculated as free NCO and based on non-blocked polyisocyanate, corresponding to an NCO content of about 5 to about 20% by weight, (iii) an ionic group content of about 1 to about 75 milliequivalents per 100 g of blocked polyisocyanate, and (iv) a content of polyalkylene oxide units of about 1 to about 20% by weight, based on blocked polyisocyanate, said blocked polyisocyanate being obtained by the reaction of(a) organic polyisocyanates,(b) isocyanate-reactive compounds containing (potential) ionic groups,(c) polyalkylene ether alcohols,(d) NCO blocking agents, and(e) optionally, isocyanate-reactive compounds that are different from components (b), (c), and (d).

    Abstract translation: 本发明涉及用水分散体进行纺织印花的方法,其中有机固定剂与封端多异氰酸酯交联,所述封端多异氰酸酯的平均分子量为约800至约25,000,(ii)封端异氰酸酯基的含量, 计算为游离NCO并基于非封端多异氰酸酯,对应于约5至约20重量%的NCO含量,(iii)离子基团含量为约1至约75毫当量/ 100g封端多异氰酸酯,和( iv)基于封端多异氰酸酯的约1至约20重量%的聚环氧烷单元的含量,所述封端多异氰酸酯是通过(a)有机多异氰酸酯反应获得的,(b)含有(电位)离子的异氰酸酯反应性化合物 (c)聚亚烷基醚醇,(d)NCO封闭剂,和(e)任选的不同于组分(b),(c)和(d)的异氰酸酯反应性化合物。

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