JPS6431678A - Recording material - Google Patents

Recording material

Info

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
Application number
JP62189496A
Other languages
Japanese (ja)
Inventor
Masanobu Takashima
Ken Iwakura
Masato Satomura
Katsumi Matsuoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP62189496A priority Critical patent/JPS6431678A/en
Priority to EP87307753A priority patent/EP0262810B1/en
Priority to DE8787307753T priority patent/DE3783005T2/en
Priority to US07/092,846 priority patent/US4808566A/en
Priority to AU79484/87A priority patent/AU605792B2/en
Publication of JPS6431678A publication Critical patent/JPS6431678A/en
Pending legal-status Critical Current

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.
JP62189496A 1986-09-03 1987-07-29 Recording material Pending JPS6431678A (en)

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)

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