FR1427539A - Process for improving the contrast of photocopies - Google Patents

Process for improving the contrast of photocopies

Info

Publication number
FR1427539A
FR1427539A FR11199A FR11199A FR1427539A FR 1427539 A FR1427539 A FR 1427539A FR 11199 A FR11199 A FR 11199A FR 11199 A FR11199 A FR 11199A FR 1427539 A FR1427539 A FR 1427539A
Authority
FR
France
Prior art keywords
photocopies
contrast
improving
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
FR11199A
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.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
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 Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Priority to FR11199A priority Critical patent/FR1427539A/en
Application granted granted Critical
Publication of FR1427539A publication Critical patent/FR1427539A/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
    • G03C1/00—Photosensitive materials
    • G03C1/52—Compositions containing diazo compounds as photosensitive substances
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
    • G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
    • 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
    • G03C5/08—Photoprinting; Processes and means for preventing photoprinting

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
FR11199A 1964-04-01 1965-03-30 Process for improving the contrast of photocopies Expired FR1427539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR11199A FR1427539A (en) 1964-04-01 1965-03-30 Process for improving the contrast of photocopies

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK0052549 1964-04-01
FR11199A FR1427539A (en) 1964-04-01 1965-03-30 Process for improving the contrast of photocopies

Publications (1)

Publication Number Publication Date
FR1427539A true FR1427539A (en) 1966-02-04

Family

ID=25983883

Family Applications (1)

Application Number Title Priority Date Filing Date
FR11199A Expired FR1427539A (en) 1964-04-01 1965-03-30 Process for improving the contrast of photocopies

Country Status (1)

Country Link
FR (1) FR1427539A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443706A1 (en) * 1978-12-04 1980-07-04 Eliott Ind DIAZOCOPY METHOD AND APPARATUS FOR REPRODUCTION OF BLUE COLOR DOCUMENTS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2443706A1 (en) * 1978-12-04 1980-07-04 Eliott Ind DIAZOCOPY METHOD AND APPARATUS FOR REPRODUCTION OF BLUE COLOR DOCUMENTS

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