Hydrophobic substrate with coating receptive to inks

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

B - Operations, Transporting

05

D

117/165, 117/201

B05D 5/04 (2006.01) B41M 5/52 (2006.01)

Patent

CA 1244727

- 18 - HYDROPHOBIC SUBSTRATE WITH COATING RECEPTIVE TO INKS Abstract of the Disclosure A recording material, comprising a hydrophobic substrate material with a polymeric coating, has excellent receptivity for inks that do not normally wet hydrophobic sub- strates. 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 polyethy- lene terephthalate, can be coated with the mixture of polymers to provide a sheet material which can be used in ink jet prin- ters 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.

451517

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