Alcohol-based flexographic ink for use in backcarbon papers

Details Alcohol-based flexographic ink for use in backcarbon papers Alcohol-based flexographic ink for use in backcarbon papers

1984-08-22

1987-02-03

Yarbrough, Amelia B.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 145, 346214, 346215, 427149, 427150, C09D 1112

Patent

active

046407146

ABSTRACT:
When a transferred image is formed on a plain paper by the use of a colorless backcarbon paper coated with an alcohol-based flexographic ink composed essentially of (A) microcapsules whose core substance is an oil droplet containing an electron-donating organic color former, (B) microcapsules whose core substance is an oil droplet containing an electron-accepting organic color developer, (C) a binder resin and (D) a solvent composed mainly of a lower alcohol of 1 to 3 carbon atoms, the density of the transferred image is improved by adding an appropriate amount of a wax to the core substance(s) of either or both of the above microcapsules (A) and (B).

REFERENCES:
patent: 3943080 (1976-03-01), Wismer et al.
patent: 4003846 (1977-01-01), Kuhn et al.
patent: 4021245 (1977-05-01), Nagatomo et al.
patent: 4421560 (1983-12-01), Kito et al.

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