发明授权
US4735657A Water-soluble dye in an ink 失效
油墨中的水溶性染料

Water-soluble dye in an ink
摘要:
A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R.sup.1 is --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O).sub.n H,R.sup.2 is H or --(C.sub.a H.sub.2a O).sub.m (C.sub.b H.sub.2b O).sub.n H, orR.sup.1 and R.sup.2 together with the nitrogen atom form a morpholine ringa and b are different and from 1 to 8m is from 1 to 10;n is from 0 to 9;Y is the residue of a copper phthalocyanine sulphonic acid of the formula:CuPc(SO.sub.3 M).sub.qp is from 1 to 3q is from 1 to 3p+q is from 3 to 4M is H, ammonium, or a monovalent metal;X is NR.sup.1 R.sup.2, alkoxy, NR.sup.3 R.sup.4 in which R.sup.3 and R.sup.4 are each independently selected from H, alkyl and aryl, or the residue of a mono- or dis-azo chromophore comprising benzene, naphthalene or mono- or bi-cyclic heteroaryl diazo and coupling components, linked to the triazine nucleus through a primary or secondary amine linking group; andZ is a divalent linking group,which is suitable for the preparation of a printing ink, especially for ink jet printing.
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