GB492795A - Improvements in or relating to photographic printing material - Google Patents

Improvements in or relating to photographic printing material

Info

Publication number
GB492795A
GB492795A GB29536/37A GB2953637A GB492795A GB 492795 A GB492795 A GB 492795A GB 29536/37 A GB29536/37 A GB 29536/37A GB 2953637 A GB2953637 A GB 2953637A GB 492795 A GB492795 A GB 492795A
Authority
GB
United Kingdom
Prior art keywords
photographic printing
printing material
sensitive
relating
photographic
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
GB29536/37A
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
Publication of GB492795A publication Critical patent/GB492795A/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
    • G03C5/08—Photoprinting; Processes and means for preventing photoprinting
    • 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
    • G03C1/61—Compositions containing diazo compounds as photosensitive substances with non-macromolecular additives
    • 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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/08—Varnishing, e.g. application of protective layers on finished photographic prints
    • G03C11/10—Varnishing, e.g. application of protective layers on finished photographic prints for protection from ultraviolet light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00—Printed matter
    • Y10S283/902—Anti-photocopy

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

Abstract

492,795. Photographic sensitive materials. KALLE & CO. AKT.-GES. Oct. 28, 1937, No. 29536. Convention date, Dec. 4, 1936. [Class 98 (ii)] Photographic printing material especially diazotype material is prepared by applying in addition to the sensitive material a substantially colourless substance absorbing ultra-violet light and which is stable to light, the application being non-uniform. The substance is preferably applied to the reverse side of the material to the sensitive layer, or to the interior thereof. For example, paper is sprayed non-uniformly with a solution of the sodium salt of methyl umbelliferone carboxylic acid and dried.
GB29536/37A 1936-12-04 1937-10-28 Improvements in or relating to photographic printing material Expired GB492795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE492795X 1936-12-04

Publications (1)

Publication Number Publication Date
GB492795A true GB492795A (en) 1938-09-27

Family

ID=6544459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29536/37A Expired GB492795A (en) 1936-12-04 1937-10-28 Improvements in or relating to photographic printing material

Country Status (2)

Country Link
US (1) US2162456A (en)
GB (1) GB492795A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365293A (en) * 1963-06-06 1968-01-23 Geigy Ag J R Photographic diazotype films comprising fluorescent ultraviolet absorbers
US4080208A (en) * 1975-01-13 1978-03-21 Addressograph Multigraph Corporation Photosensitive diazomicrofilm adapted to be readable but nonreproducible upon processing

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001311A (en) * 1957-08-27 1961-09-26 Kemart Corp Fluorescent article for use in the graphic arts and method of making same
CA1221585A (en) * 1983-07-25 1987-05-12 Kisokaseisangyou Co., Ltd. Composite film for protecting documents from being reproduced
DE3906944A1 (en) * 1989-03-02 1990-09-13 Francotyp Postalia Gmbh METHOD FOR LABELING ORIGINAL PRINTS
DE3906945C2 (en) * 1989-03-02 1993-11-25 Francotyp Postalia Gmbh Process for differentiating original prints from copies
US6076859A (en) * 1998-06-01 2000-06-20 Express Systems Incorporated Method and label system for marking property

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365293A (en) * 1963-06-06 1968-01-23 Geigy Ag J R Photographic diazotype films comprising fluorescent ultraviolet absorbers
US4080208A (en) * 1975-01-13 1978-03-21 Addressograph Multigraph Corporation Photosensitive diazomicrofilm adapted to be readable but nonreproducible upon processing

Also Published As

Publication number Publication date
US2162456A (en) 1939-06-13

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