Single coating record system-solvent loss produces color

Details Single coating record system-solvent loss produces color Single coating record system-solvent loss produces color

1974-12-12

1977-03-15

McCamish, Marion E.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

106 21, 106 22, 282 275, 427150, 427151, 428307, B32B 516, B32B 2700

Patent

active

040125548

ABSTRACT:
A colorless liquid ink is provided which yields a distinctive marking color on exposure to normal environmental conditions of temperature and pressure as when used for writing on a sheet of plain paper. This ink may be encapsulated to give pressure-rupturable microcapsules. Autogenous, pressure-sensitive record materials are provided by incorporation of such microcapsules in or on sheets of paper for use singly or in manifold duplicating systems which respond to printing-pressures applied by un-inked printing members.

REFERENCES:
patent: 3202533 (1965-08-01), Sachsel et al.
patent: 3427180 (1969-02-01), Phillips, Jr.
patent: 3560229 (1971-02-01), Farnham et al.
patent: 3627581 (1971-12-01), Phillips, Jr.

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