Coloring paper

Details Coloring paper Coloring paper

C - Chemistry, Metallurgy

09

B

8/26.2, 260/168.

C09B 29/00 (2006.01) C09B 44/02 (2006.01) D21H 21/28 (2006.01)

Patent

CA 1294955

Abstract of the Disclosure: Paper is colored by a pro- cess in which a compound which, in the form of the free acid, is of the general formula I Image I where, in each case independently of one another, the radicals A are each unsubstituted or substituted C1-C6-alkylene or vinylene, the radicals R are each hydrogen or C1-C4-alkyl, the radicals X are each -CO- or -SO2-, and the radicals K are each a cationic group and Y is hydrogen, chlorine or bromine, are used. The novel process gives colorations possessing good fast- ness properties on paper stocks.

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