Dyestuff solutions, their preparation and their us

专利名称：Dyestuff solutions, their preparation and

their use for dyeing paper

发明人：Manfred Groll,Friedhelm Muller申请号：US06/115529申请日：19800125公开号：US04282000A公开日：19810804

摘要：Aqueous solutions of copper phthalocyanine-sulphonic acid salts of the formula##STR1## in which Cu--Pc a copper phthalocyanine radical,

m a number from 1.8 to 3.0,

q a number from 1. 0 to 2.0, with the proviso that the sum m+q is a number from 2.8to 4.0, and

M.sup.⊕ a mixture of A.sub.n. sup.⊕ and an ammonium ion of the formula ##STR2##wherein A.sup. ⊕ represents an alkali metal ion or NH.sub.4 ion,

n represents a number from 0.8 to 2.0,

m has the meaning indicated above,< P>

R.sub.1 and R.sub.2 designate hydrogen, C.sub.1 --C.sub.4 -- alkyl or a radical --(CH.sub.2 --CH.sub.2 --O).sub. p --H and

< P>R.sub.3 designates the radical --(CH.sub.2 -- CH.sub.2 --O).sub.p --H,

wherein

p is 1, 2, 3, 4, 5 or 6,< P>

process for the preparation of these solutions and their use for dyeing paper.

申请人：BAYER AKTIENGESELLSCHAFT

代理机构：Sprung, Felfe, Horn, Lynch & Kramer

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