Capsule coating

Details Capsule coating Capsule coating

1992-02-24

1994-07-19

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 21R, C09D 1100

Patent

active

053305663

ABSTRACT:
The present invention discloses an improved coating for pressure-sensitive record material of the type comprising an aqueous slurry of binder and anionic microcapsules containing a color former and a solvent. The improvement comprises including in addition in the aqueous slurry an aluminum cation as a cationic metal salt in a concentration range of from about 0.15 parts of cation per 100 parts microcapsules to about 3.9 parts of cation per 100 parts microcapsules on a dry weight basis. Enhanced image intensity based on the active weight of coating used as measured by capsule solids is observed.

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