Solid preparation of water-soluble acid dye and polymer particle

Details Solid preparation of water-soluble acid dye and polymer particle Solid preparation of water-soluble acid dye and polymer particle

1983-11-02

1984-07-10

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Polymeric additive

8647, 8680, 8584, 8524, 430578, 430941, 526274, 526310, C09B 6724, G03C 184

Patent

active

044591306

ABSTRACT:
A dye preparation consists of a water-soluble acid dye and a water-insoluble basic carrier. The carrier consists of crosslinked polymer particles of average particle diameter of less than 1 .mu.m and contains at least 2 mVal/g of quaternary ammonium or phosphonium groups. The dye reacts with the carrier in an ion exchange reaction and forms a dye polymer latex which can easily isolated in solid form, stored indefinitely and redispersed in water whenever required. It forms a so-called self-dispersing dye preparation. The dye preparation is useful for making dyed layers such as in photographic recording materials.

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