B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
B05D 5/04 (2006.01) B41M 5/52 (2006.01)
Patent
CA 2052129
This invention relates to a recording sheet, more particularly, a transparent recording sheet suitable for use with ink-jet printers. Transparencies for use with overhead projectors can be produced by imagewise deposition of liquid ink of various colors onto thin, flexible, transparent polymeric sheets. In the case of imaging onto polymeric film, some means of absorbing aqueous liquids is needed if satisfactory drying of the image is to occur. Because simple polymeric systems are generally either limited in absorbency or in structural integrity, compositions useful as transparent liquid absorbent materials have been formed by blending a liquid-insoluble or low absorbent material with a liquid- soluble, or high absorbent material. A problem that frequently arises in the formulation of polymer blends is the incompatibility of the polymers being blended. When attempts are made to blend polymers that are incompatible, phase separation occurs, resulting in haze, lack of transparency, and other forms of inhomogeneity. This invention provides a transparent recording sheet suitable for ink-jet printers comprising a transparent support bearing on at least one major surface thereof a light transmissive ink-receptive layer containing a hydrophilic polymer crosslinked by polyfunctional aziridine. The recording sheet remains transparent even after ink is absorbed and provides a fast drying, durable, non-tacky transparency suitable for use with an overhead projector.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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