Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Identified reactant isolating material or capsule wall...
Patent
1985-08-08
1987-07-14
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Identified reactant isolating material or capsule wall...
503219, 503225, 503226, 427150, B41M 516
Patent
active
046805974
ABSTRACT:
A self-contained type pressure sensitive record sheet prepared by coating a substrate with a mixture of microcapsules containing a color former and an inorganic solid acid as a color acceptor and drying the resulting coating, the mixture containing 10 to 30% by weight of polyvinyl alcohol based on the weight of the inorganic solid acid.
REFERENCES:
patent: 4486762 (1984-12-01), Okamoto et al.
patent: 4536220 (1985-08-01), Kondo et al.
Okamoto Shigeo
Shiozaki Tomoharu
Hess Bruce H.
Kanzaki Paper Manufacturing Co. Ltd.
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