Clariant Corporation

Clariant Produkte (deutschland) Gmbh

Heinz Bach

Rainer Winter

Ulrich Ott

Rolf Kaiser

Thomas Heber

The invention relates to an azo pigment preparation containing a) at least one azo pigment, b) a resin based on colophonium or modified colophonium with an acid value equal to or higher than 320 mg KOH/g, and c) an ammonium salt of a sulfonated diaryl yellow pigment.

Azo pigment preparations for packaging gravure and flexographic printing

The invention relates to a diaryl yellow pigment preparation, including a) at least one diaryl yellow pigment b) at least one natural resin on the basis of rosin or modified rosin, c) at least one compound of formula (1), and d) an aluminum, zinc, manganese or iron compound in an amount of from 0.1 to 8% by weight (calculated as a metal cation), based on component b). The inventive preparations are suitable for a variety of applications, among them the production of printing inks, especially offset printing inks.

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Frankfurt am Main, Germany

Heinz Bach