JPS6485254A - Crystal modification of 3,3-bis(2,2-bis(p-pyrrolidinophenyl) ethenyl)-4,5,6,7-tetrachlorophthalide and color-forming recording material containing same - Google Patents

Crystal modification of 3,3-bis(2,2-bis(p-pyrrolidinophenyl) ethenyl)-4,5,6,7-tetrachlorophthalide and color-forming recording material containing same

Info

Publication number
JPS6485254A
JPS6485254A JP62242258A JP24225887A JPS6485254A JP S6485254 A JPS6485254 A JP S6485254A JP 62242258 A JP62242258 A JP 62242258A JP 24225887 A JP24225887 A JP 24225887A JP S6485254 A JPS6485254 A JP S6485254A
Authority
JP
Japan
Prior art keywords
color
bis
beta
crystal modification
forming material
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
JP62242258A
Other languages
Japanese (ja)
Inventor
Yoshiharu Fujino
Yoshiaki Uda
Kozo Mizuno
Katsuhiko Tsunemitsu
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.)
Yamada Chemical Co Ltd
Original Assignee
Yamada 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 Yamada Chemical Co Ltd filed Critical Yamada Chemical Co Ltd
Priority to JP62242258A priority Critical patent/JPS6485254A/en
Publication of JPS6485254A publication Critical patent/JPS6485254A/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Color Printing (AREA)

Abstract

PURPOSE:To obtain the title crystal modification having strong absorptions also in the near-infrared region and suited as a color-forming material of a pressure-sensitive copying paper or a thermal recording paper, having a property of exhibiting strong peaks at specified angles of diffraction (2theta) in X-ray diffractometry with Cu-Kalpha line. CONSTITUTION:The title crystal modification (beta-modification) characterized by showing an X-ray diffraction pattern having strong peaks at angles of diffraction (2theta) of 7.1, 10.5 and 23.8 in X-ray diffractometry with Cu-Kalpha line. This compound has three crystal modifications (alpha, beta and gamma), and the other two forms (alpha and gamma) are very low in sensitivity of color formation and color density in the near-infrared region and are markedly poor in light fastness of a coat, whereas said beta-form is high in sensitivity of color formation and color density and low in discoloration and decomposition upon irradiation with sunlight and is excellent in light fastness of coat. Therefore, it has a very high utility value as a color-forming material used in an OCR pressure-sensitive copying paper or thermal recording paper as well as a color-forming material used in a common pressure-sensitive copying paper or thermal recording paper.
JP62242258A 1987-09-25 1987-09-25 Crystal modification of 3,3-bis(2,2-bis(p-pyrrolidinophenyl) ethenyl)-4,5,6,7-tetrachlorophthalide and color-forming recording material containing same Pending JPS6485254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242258A JPS6485254A (en) 1987-09-25 1987-09-25 Crystal modification of 3,3-bis(2,2-bis(p-pyrrolidinophenyl) ethenyl)-4,5,6,7-tetrachlorophthalide and color-forming recording material containing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242258A JPS6485254A (en) 1987-09-25 1987-09-25 Crystal modification of 3,3-bis(2,2-bis(p-pyrrolidinophenyl) ethenyl)-4,5,6,7-tetrachlorophthalide and color-forming recording material containing same

Publications (1)

Publication Number Publication Date
JPS6485254A true JPS6485254A (en) 1989-03-30

Family

ID=17086592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242258A Pending JPS6485254A (en) 1987-09-25 1987-09-25 Crystal modification of 3,3-bis(2,2-bis(p-pyrrolidinophenyl) ethenyl)-4,5,6,7-tetrachlorophthalide and color-forming recording material containing same

Country Status (1)

Country Link
JP (1) JPS6485254A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100791868B1 (en) * 2000-10-31 2008-01-07 유니챰 가부시키가이샤 Pants type disposable diaper
AU2003257596B2 (en) * 2002-08-30 2008-01-10 Unicharm Corporation Pull-On Disposable Diaper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100791868B1 (en) * 2000-10-31 2008-01-07 유니챰 가부시키가이샤 Pants type disposable diaper
AU2003257596B2 (en) * 2002-08-30 2008-01-10 Unicharm Corporation Pull-On Disposable Diaper

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