Self-contained color forming pressure sensitive record paper of

Details Self-contained color forming pressure sensitive record paper of Self-contained color forming pressure sensitive record paper of

1979-11-28

1982-04-27

Hess, Bruce H.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having a component wherein a constituent is liquid...

282 275, 427150, 427151, 428326, 428327, 428513, B41M 516

Patent

active

043271480

ABSTRACT:
A self-contained color forming pressure sensitive record paper of the single coating type which has on one side of a support a coating layer of a mixture of color former-containing microcapsules and color developer-containing microcapsules, as well as a powdered polyolefin. The powdered polyolefin acts as capsule protecting agent and prevents the smudging due to unintentional color development caused by the rapture of the capsules.

REFERENCES:
patent: 3625736 (1971-12-01), Matsukawa et al.
patent: 4038445 (1977-07-01), Robertson
patent: 4197346 (1980-04-01), Stevens

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