Hydrophobic substrate with coating receptive to inks

Details Hydrophobic substrate with coating receptive to inks Hydrophobic substrate with coating receptive to inks

1983-05-09

1985-03-05

Herbert, Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

346 11, 3461351, 400126, 427164, 427209, 427261, 4274071, 427414, 428203, 428207, 4284782, 428480, 428483, B32B 2706, B05D 506, G01D 1518

Patent

active

045031118

ABSTRACT:
A recording material, comprising a hydrophobic substrate material with a polymeric coating, has excellent receptivity for inks that do not normally wet hydrophobic substrates. The substrate material is coated with a mixture of polyvinylpyrrolidone and a compatible matrix-forming polymer. The matrix-forming polymer is a material, such as gelatin or polyvinyl alcohol, that is swellable by water and insoluble at room temperature but soluble at elevated temperatures. A transparent base sheet, such as cellulose acetate or polyethylene terephthalate, can be coated with the mixture of polymers to provide a sheet material which can be used in ink jet printers and in pen-type graphics recorders, operating at normal speeds, to record large color-filled areas without puddling, running, or wetness and with high color density and excellent resolution.

REFERENCES:
patent: 3889270 (1975-06-01), Hoffmann et al.
patent: 4269891 (1981-05-01), Minagawa
patent: 4301195 (1981-11-01), Mercer et al.
patent: 4352901 (1982-10-01), Marwell et al.
patent: 4425405 (1984-01-01), Murakami et al.
W. Crooks et al., IBM Technical Disclosure Bulletin, vol. 21, No. 6, Nov. 1978.

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