JPS5642233A - Photosensitive heat-sensitive type copying apparatus - Google Patents

Photosensitive heat-sensitive type copying apparatus

Info

Publication number
JPS5642233A
JPS5642233A JP11833579A JP11833579A JPS5642233A JP S5642233 A JPS5642233 A JP S5642233A JP 11833579 A JP11833579 A JP 11833579A JP 11833579 A JP11833579 A JP 11833579A JP S5642233 A JPS5642233 A JP S5642233A
Authority
JP
Japan
Prior art keywords
paper
heat
image
exposed
diazonium salt
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.)
Granted
Application number
JP11833579A
Other languages
Japanese (ja)
Other versions
JPS6336489B2 (en
Inventor
Yoshiaki Ibuchi
Shoshichi Kato
Eiji Imada
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP11833579A priority Critical patent/JPS5642233A/en
Publication of JPS5642233A publication Critical patent/JPS5642233A/en
Publication of JPS6336489B2 publication Critical patent/JPS6336489B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/18—Diazo-type processes, e.g. thermal development, or agents therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

PURPOSE:To make a copied image clear and easy to see by postexposing diazonium salt on image forming paper after heat development to cause whitening. CONSTITUTION:Photosensitive paper 9 as copying sheet is superposed on the image surface of original 10, and they are exposed with paper 9 downward by means of an ultraviolet flourescent lamp. Paper 9 is obtd. by coating base paper with a photosensitive heat-subliming composition and a sensitizer such as naphthol 9-2. The heat sublimability of naphthol is maintained in part 9-2-1 alone opposite to the image part of original 10 after exposure, and other part 9-2-2 is inactivated by exposure. Exposed paper 9 is superposed on image receiving paper 11 obtd. by coating base paper 11-1 as positive paper with diazonium salt 11-2, and by carrying out heat development, the heat sublimate in the unexposed part reacts with the diazonium salt and colors. Paper 11 is then exposed to ultraviolet rays to whiten the uncolored part of paper 11.
JP11833579A 1979-09-13 1979-09-13 Photosensitive heat-sensitive type copying apparatus Granted JPS5642233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11833579A JPS5642233A (en) 1979-09-13 1979-09-13 Photosensitive heat-sensitive type copying apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11833579A JPS5642233A (en) 1979-09-13 1979-09-13 Photosensitive heat-sensitive type copying apparatus

Publications (2)

Publication Number Publication Date
JPS5642233A true JPS5642233A (en) 1981-04-20
JPS6336489B2 JPS6336489B2 (en) 1988-07-20

Family

ID=14734112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11833579A Granted JPS5642233A (en) 1979-09-13 1979-09-13 Photosensitive heat-sensitive type copying apparatus

Country Status (1)

Country Link
JP (1) JPS5642233A (en)

Also Published As

Publication number Publication date
JPS6336489B2 (en) 1988-07-20

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