Title:
THERMAL RECORDING MATERIAL
Document Type and Number:
Japanese Patent JP3204827
Kind Code:
B2
Abstract:
PURPOSE: To obtain a thermal recording material having high sensitivity, good in the stability of raw preservability and a developed color image and having good printing quality by providing a thermal color forming layer containing an N-substituted anthranylic acid derivative or a metal salt thereof as a coupler on a support having a pigment-containing undercoat layer.
CONSTITUTION: An undercoat layer based on pigment (e.g.; baked kaolin) is provided on a support and a thermal color forming layer containing an electron donating leuco dye and an electron acceptive compd. is provided on the undercoat layer. In this thermal recording material, an N-substituted anthranilic acid derivative represented by either one of formulae I, II (wherein R1 is H, an alkyl group or an aryl group, R2 is an alkyl group, a cycloalkyl group, an aryl group, an alkylamino group, an alkyloxy group, an aryloxy group or an arylamino group, X is O or S, M is an n-valent metal atom and n is an integer) or a metal salt thereof is added to the thermal color forming layer. As a result, the thermal recording material imparting a developed color image good in stability is obtained.
Inventors:
Hiroshi Kawakami
K. Saeki
K. Saeki
Application Number:
JP32450093A
Publication Date:
September 04, 2001
Filing Date:
December 22, 1993
Export Citation:
Assignee:
Fuji Photo Film Co., Ltd.
International Classes:
B41M5/337; B41M5/26; B41M5/30; B41M5/333; (IPC1-7): B41M5/30; B41M5/26
Domestic Patent References:
| JP54111905A | ||||
| JP5201138A | ||||
| JP4314587A | ||||
| JP4290792A | ||||
| JP236993A | ||||
| JP63144083A | ||||
| JP61139485A | ||||
| JP6155925A | ||||
| JP6270549A | ||||
| JP664321A |
Attorney, Agent or Firm:
Atsushi Nakajima (3 outside)
Previous Patent: Digital universal time meter device
Next Patent: PRODUCTION OF IMPACT ABSORBING MOLDED PRODUCT
Next Patent: PRODUCTION OF IMPACT ABSORBING MOLDED PRODUCT