Heat-sensitive recording material
First Claim
Patent Images
1. A heat-sensitive recording material comprising:
- a substrate sheet;
a heat-sensitive color-forming layer formed on a surface of the substrate sheet and comprising a substantially colorless dye precursor, a color-developing agent reactive with the dye precursor upon heating to develop a color, and a binder andat least one protective layer formed on the heat-sensitive color-forming layer and comprising, as a principal component, a mixture of;
(A) a polyvinylalcohol resin;
(B) a water-soluble cross-linking agent; and
(C) an organic boron-containing polymer of the formula (I);
##STR4## wherein p represents an integer of 10 or more.
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Accused Products
Abstract
A heat-sensitive recording material having a superior resistance against water, plasticizers, and oily substances, is provided with a heat-sensitive color-forming layer formed on a surface of a substrate sheet and comprising a dye precursor, a color-developing agent, and a binder; and a protecting layer formed on the heat-sensitive color-forming layer and comprising (A) a polyvinylalcohol resin, (B) a water-soluble cross-linking agent, (C) at least one organic boron-containing polymer of the formula (I): ##STR1## and optionally (D) an acetoacetylated polyvinylalcohol resin.
5 Citations
16 Claims
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1. A heat-sensitive recording material comprising:
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a substrate sheet; a heat-sensitive color-forming layer formed on a surface of the substrate sheet and comprising a substantially colorless dye precursor, a color-developing agent reactive with the dye precursor upon heating to develop a color, and a binder and at least one protective layer formed on the heat-sensitive color-forming layer and comprising, as a principal component, a mixture of; (A) a polyvinylalcohol resin; (B) a water-soluble cross-linking agent; and (C) an organic boron-containing polymer of the formula (I);
##STR4## wherein p represents an integer of 10 or more. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification