FR2098849A5 - Photocopy process - by formation of vesicular image on master sheet - Google Patents

Photocopy process - by formation of vesicular image on master sheet

Info

Publication number
FR2098849A5
FR2098849A5 FR7028003A FR7028003A FR2098849A5 FR 2098849 A5 FR2098849 A5 FR 2098849A5 FR 7028003 A FR7028003 A FR 7028003A FR 7028003 A FR7028003 A FR 7028003A FR 2098849 A5 FR2098849 A5 FR 2098849A5
Authority
FR
France
Prior art keywords
master sheet
image
absorption
original
formation
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.)
Expired
Application number
FR7028003A
Other languages
French (fr)
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.)
Pitney Bowes Inc
Original Assignee
Pitney Bowes Inc
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 Pitney Bowes Inc filed Critical Pitney Bowes Inc
Priority to FR7028003A priority Critical patent/FR2098849A5/en
Application granted granted Critical
Publication of FR2098849A5 publication Critical patent/FR2098849A5/en
Expired 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
    • G03C5/60—Processes for obtaining vesicular images

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

Process is one in which a master sheet is contacted with an original pattern and exposed by reflection, through the master sheet to radiation of suitable wavelength during a predetermined period. The master sheet comprises a translucent support and an optically homogeneous and translucent filmogenic cpd. which forms a gas when exposed to radiation and which has one or more absorption peaks. In the process, the actinic rays used for exposure exclude the absorption peak frequencies of the diazonium compd. to reduce the absorption of these radiations and allow their transmission through the film and then differential reflection by the image zones of the original. The gas formed by the diazonium cpd. is confined during the contact period in the expanded film forming cells which diffuse the rays thereby increasing preferentially the probability of local absorption of these rays resulting in the formation of a versicular image coresponding to the image of the original.
FR7028003A 1970-07-29 1970-07-29 Photocopy process - by formation of vesicular image on master sheet Expired FR2098849A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7028003A FR2098849A5 (en) 1970-07-29 1970-07-29 Photocopy process - by formation of vesicular image on master sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7028003A FR2098849A5 (en) 1970-07-29 1970-07-29 Photocopy process - by formation of vesicular image on master sheet

Publications (1)

Publication Number Publication Date
FR2098849A5 true FR2098849A5 (en) 1972-03-10

Family

ID=9059441

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7028003A Expired FR2098849A5 (en) 1970-07-29 1970-07-29 Photocopy process - by formation of vesicular image on master sheet

Country Status (1)

Country Link
FR (1) FR2098849A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000425A1 (en) * 1977-07-07 1979-01-24 Bexford Limited Light-sensitive vesicular recording material
EP0012507A2 (en) * 1978-12-11 1980-06-25 Bexford Limited Reflex copying process onto light-sensitive recording materials, the resulting imaged material and its use for optical projection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000425A1 (en) * 1977-07-07 1979-01-24 Bexford Limited Light-sensitive vesicular recording material
EP0012507A2 (en) * 1978-12-11 1980-06-25 Bexford Limited Reflex copying process onto light-sensitive recording materials, the resulting imaged material and its use for optical projection
EP0012507A3 (en) * 1978-12-11 1981-01-07 Bexford Limited Reflex copying process onto light-sensitive recording materials, the resulting imaged material and its use for optical projection

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Legal Events

Date Code Title Description
ST Notification of lapse