Transfer-onto-plain paper type pressure-sensitive copying paper

Details Transfer-onto-plain paper type pressure-sensitive copying paper Transfer-onto-plain paper type pressure-sensitive copying paper

1981-03-05

1982-08-31

Lusignan, Michael R.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

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

427150, 427151, 428914, B32B 326, B41M 312

Patent

active

043472834

ABSTRACT:
A transfer-onto-plain paper type pressure-sensitive copying paper having a colorless coating layer which forms a transferred colored image could be obtained by coating a substrate with double capsules and wax enclosing said double capsules, which double capsules have been prepared by previously forming primary microcapsules containing, as a core material, either colorless electron-donating color former or colorless electron-accepting color developer which reacts with said color former to give a colored product, enclosing the formed primary microcapsules in whichever of the color former or the color developer is not contained in the primary microcapsules, and then microencapsulating the enclosed primary microcapsules to form double capsules.

REFERENCES:
patent: 3738857 (1973-06-01), Brockette et al.
patent: 3955026 (1976-05-01), Matsukawa et al.
patent: 4165398 (1979-08-01), Raine et al.
patent: 4170483 (1979-10-01), Shackle et al.
patent: 4197346 (1980-04-01), Stevens

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