Transparent ink jet recording medium
AssigneeXidex Corporation
InventorElinor J. Tanck
Life of this patent
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Abstract
A transparent recording medium comprised of a conventional transparency base material coated with hydroxyethylcellulose and optionally containing one or more additional polymers compatible therewith demonstrates unusually favorable properties for color ink jet recording by producing a clear transparent medium on which the ink dries rapidly to produce sharp images with minimal lateral bleed.
Claims19
A transparent recording sheet comprising a transparent base support coated with a transparent ink-receiving layer comprising a hydroxyethylcellulose.
A transparent recording sheet comprising (a) a transparent base support comprising a heat-stable biaxially oriented polyethylene terephthalate and (b) a transparent ink-receiving layer having a thickness of from about 250 to about 750 microinches and comprising hydroxyethylcellulose having a viscosity of from about 50 to about 500 centipoise, measured as a 5 weight percent aqueous solution at 25.degree. C. on a Brookfield viscometer, and a molar substitution of from about 1.5 to about 3.0.
A transparent recording sheet comprising:
- (a) a transparent base support comprising a heat-stable biaxially oriented polyethylene terephthalate;
- and
- (b) a transparent ink-receiving layer adherent to said base support, said layer having a thickness of from about 250 to about 750 microinches and comprising (i) hydroxyethylcellulose having a viscosity of from about 50 to about 500 centipoise, measured as a 5 weight percent aqueous solution at 25.degree. C. on a Brookfield viscometer, and a molar substitution of from about 1.5 to about 3.0, and (ii) from about 3% to about 15% by weight of said layer of a polyacrylamide which is at most slightly anionic in character with an average molecular weight of less than about two million.
A method for the preparation of a transparent recording sheet comprising:
- (a) applying to a transparent base support a layer of an aqueous solution of a hydroxyethylcellulose;
- and
- (b) evaporating water from said layer to provide a dry substantially uniform transparent layer of hydroxyethylcellulose.
Dependencies are inferred from the claim text.