Process for enhancing the whiteness, brightness and chromaticity

Details Process for enhancing the whiteness, brightness and chromaticity Process for enhancing the whiteness, brightness and chromaticity

1996-12-19

1998-12-08

Codd, Bernard P.

Paper making and fiber liberation

Processes and products

Non-fiber additive

162135, 427157, 427158, 427411, 4274191, 428688, 428689, 524 88, D21H 1100, C08J 534, C08K 534

Patent

active

058463828

ABSTRACT:
The invention relates to the addition of sulfonated zinc, manganese, or aluminum phthalocyanines to inorganic fillers and pigments for enhancing their whiteness, brightness and chromaticity, as well as to the fillers and pigments and mixtures thereof so obtained, and to the use thereof in e.g. paper manufacture.

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