Thermal recording medium

Details Thermal recording medium Thermal recording medium

1996-11-27

1998-09-22

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Having nonchromogenic liquid spread-control or...

503216, 503225, B41M 530

Patent

active

058113690

ABSTRACT:
A thermal recording medium comprising a substrate having thereon a recording layer containing a colorless or pale colored dye precursor, and a color developer reactable with the dye precursor to develop a color as main ingredients, wherein the color developer includes at least one compound of Formula (1): and the recording layer contains at least one methylolated fatty acid amide of Formula (2): ##STR1## (wherein X denotes oxygen atom or sulfur atom; and R denotes substituted or unsubstituted phenyl group, naphthyl group, aralkyl group, a lower alkyl group of 1 to 6 carbon atoms, a cycloalkyl group of 3 to 6 carbon atoms, or a lower alkenyl group of 2 to 6 carbon atoms. Z denotes a lower alkyl group of 1 to 6 carbon atoms or an electron attracting group. n is an integer from 0 to 4, and p is an integer from 1 to 5, satisfying n+p .ltoreq.5.).

REFERENCES:
patent: 4570170 (1986-02-01), Hiraishi et al.
patent: 5665675 (1997-09-01), Nagai et al.
Patent Abstracts of Japan, vol. 96, No. 3, 29 Mar. 1996 & JP 07 304727 A (Nippon Paper Industrial Co. Ltd.), 21 Nov. 1995.
Patent Abstracts of Japan, vol. 7, No. 37 (M-193), 15 Feb. 1983 & JP 57 188394 A (Ricoh K.K.), 19 Nov. 1982.
Patent Abstracts of Japan, vol. 18, No. 521 (M-1681), 30 Sep. 1994 & JP 06 179289 A (Nippon Kayaku Co. Ltd), 28 Jun. 1994.

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