JPS5630893A - Recording paper - Google Patents

Recording paper

Info

Publication number
JPS5630893A
JPS5630893A JP10834379A JP10834379A JPS5630893A JP S5630893 A JPS5630893 A JP S5630893A JP 10834379 A JP10834379 A JP 10834379A JP 10834379 A JP10834379 A JP 10834379A JP S5630893 A JPS5630893 A JP S5630893A
Authority
JP
Japan
Prior art keywords
solution
derivative
electron
resistance
compound
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
JP10834379A
Other languages
Japanese (ja)
Inventor
Yasutaka Shimizu
Hiroto Kenmochi
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP10834379A priority Critical patent/JPS5630893A/en
Publication of JPS5630893A publication Critical patent/JPS5630893A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
    • B41M5/132—Chemical colour-forming components; Additives or binders therefor
    • B41M5/136—Organic colour formers, e.g. leuco dyes
    • B41M5/145—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
    • B41M5/1455—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring characterised by fluoran compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
    • B41M5/323—Organic colour formers, e.g. leuco dyes
    • B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
    • B41M5/3275—Fluoran compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Color Printing (AREA)

Abstract

PURPOSE:To enhance the resistance to light and to water by using a specified fluoan compound as an electron-donative color former. CONSTITUTION:After reacting, for example, a derivative of 2-(4-amino-2-hydroxybenzoyl)benzoic acid with a derivative of 4-anilinophenol in the presence of a dehydrating-condensing agent, the reaction product is put into iced water and then neutralized. The neutralized product is recrystallized, to obtain a specified fluoran compound which is an electron-donative color former. The fluoran compound is dissolved in a solvent such as alkylnaphthalene, and the solution is then emulsified by the addition of a solution of gum arabic or gelatin as required. Then, the pH of the solution or emulsion is adjusted to obtain a microcapsule dispersion, which is coated on a substrate such as paper and dried. The thus obtained recording paper was excellent in resistance to light and to heat and did not undergo self-coloring during its storage.
JP10834379A 1979-08-24 1979-08-24 Recording paper Pending JPS5630893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10834379A JPS5630893A (en) 1979-08-24 1979-08-24 Recording paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10834379A JPS5630893A (en) 1979-08-24 1979-08-24 Recording paper

Publications (1)

Publication Number Publication Date
JPS5630893A true JPS5630893A (en) 1981-03-28

Family

ID=14482278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10834379A Pending JPS5630893A (en) 1979-08-24 1979-08-24 Recording paper

Country Status (1)

Country Link
JP (1) JPS5630893A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6160308U (en) * 1984-09-25 1986-04-23
US4607950A (en) * 1984-09-25 1986-08-26 Minolta Camera Kabushiki Kaisha Mark detection apparatus for a micro-roll film
EP0384895A2 (en) * 1989-02-24 1990-08-29 Ciba-Geigy Ag 2- Or 3-fluorane-dicarboxylic imides, process for their preparation and their use in recording materials
JP2005533809A (en) * 2002-06-19 2005-11-10 シェーリング　コーポレイション Cannabinoid receptor agonist

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6160308U (en) * 1984-09-25 1986-04-23
US4607950A (en) * 1984-09-25 1986-08-26 Minolta Camera Kabushiki Kaisha Mark detection apparatus for a micro-roll film
EP0384895A2 (en) * 1989-02-24 1990-08-29 Ciba-Geigy Ag 2- Or 3-fluorane-dicarboxylic imides, process for their preparation and their use in recording materials
JP2005533809A (en) * 2002-06-19 2005-11-10 シェーリング　コーポレイション Cannabinoid receptor agonist

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