JPS6431678A - Recording material - Google Patents
Recording materialInfo
- Publication number
- JPS6431678A JPS6431678A JP62189496A JP18949687A JPS6431678A JP S6431678 A JPS6431678 A JP S6431678A JP 62189496 A JP62189496 A JP 62189496A JP 18949687 A JP18949687 A JP 18949687A JP S6431678 A JPS6431678 A JP S6431678A
- Authority
- JP
- Japan
- Prior art keywords
- electron
- color
- colorless dye
- acceptive compound
- phthalide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Heat Sensitive Colour Forming Recording (AREA)
- Color Printing (AREA)
Abstract
PURPOSE:To enhance raw storage life and the stability of developed color images, by using an indolyl (aza) phthalide linked by an indole ring as an electron-donative colorless dye. CONSTITUTION:An indolyl (aza) phthalide linked by an indole ring is used as an electron-donative colorless dye, in a recording material utilizing a color forming phenomenon upon contact of a colorless dye with an electron-acceptive compound. This electron-donative colorless dye is a colorless or light-colored crystal, which is highly soluble in organic solvents, and rapidly forms a color upon making contact with the electron-acceptive compound. The coloring matter thus color-developed is free of decoloration or fading even when being subjected to irradiation with light, heating or moistening for a long time, so that a record can be preserved for an extended period. The electron-acceptive compound may be a phenol derivative, a salicylic acid derivative, a metallic salt of an aromatic carboxylic acid novolak, acid clay or the like.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189496A JPS6431678A (en) | 1987-07-29 | 1987-07-29 | Recording material |
EP87307753A EP0262810B1 (en) | 1986-09-03 | 1987-09-02 | Sheet recording material containing dye-forming components |
DE8787307753T DE3783005T2 (en) | 1986-09-03 | 1987-09-02 | RECORD MATERIAL SHEET WITH DYE IMAGE. |
US07/092,846 US4808566A (en) | 1986-09-03 | 1987-09-03 | Recording material |
AU79484/87A AU605792B2 (en) | 1987-07-01 | 1987-10-08 | Recording material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189496A JPS6431678A (en) | 1987-07-29 | 1987-07-29 | Recording material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6431678A true JPS6431678A (en) | 1989-02-01 |
Family
ID=16242245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62189496A Pending JPS6431678A (en) | 1986-09-03 | 1987-07-29 | Recording material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6431678A (en) |
-
1987
- 1987-07-29 JP JP62189496A patent/JPS6431678A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8002636L (en) | TEMPERATURALLY RECORDING MATERIAL | |
ES8602493A1 (en) | Pressure-sensitive recording material | |
JPS6431678A (en) | Recording material | |
JPS53145654A (en) | Liquid crystal display device of projection type | |
JPS57123089A (en) | Heat-sensitive recording type magnetic roll paper | |
FR2445333A2 (en) | Chromogenic cpd. used in pressure sensitive registration materials - is 7-(1-ethyl-2-methylindole-3-yl)-7-(4-diethylamino-2-ethodyphenyl)- -5,7-di:hydro:furo (3,4-b) pyridine-5 or-7-one | |
JPS5315127A (en) | Photographic light sensitive material | |
JPS5551590A (en) | Heat-sensitive recording material | |
JPS5630893A (en) | Recording paper | |
JPS5646785A (en) | Thermosensitive recording material | |
JPS649778A (en) | Recording material | |
JPS6469384A (en) | Thermal recording material | |
JPS6418685A (en) | Forming of recording image | |
JPS57210889A (en) | Heat-sensitive recording paper | |
JPS57195686A (en) | Recording paper | |
JPS56155791A (en) | Thermal recording paper | |
JPS5741990A (en) | Recording material | |
JPS5660289A (en) | Pressure-sensitive recording paper and manufacture thereof | |
JPS5525306A (en) | Multi-color heat-sensitive recording material | |
JPS57195687A (en) | Recording paper | |
JPS57109872A (en) | Recording material having color-fading property with time | |
JPS5755968A (en) | Preparation of coloring matter | |
JPS5782089A (en) | Heat sensitive recording material | |
JPS55133992A (en) | Two-color developing thermosensitive recording paper | |
JPS57156294A (en) | Heat-sensitive recording material |