GB961515A - Process for developing diazotype copies - Google Patents

Process for developing diazotype copies

Info

Publication number
GB961515A
GB961515A GB47920/62A GB4792062A GB961515A GB 961515 A GB961515 A GB 961515A GB 47920/62 A GB47920/62 A GB 47920/62A GB 4792062 A GB4792062 A GB 4792062A GB 961515 A GB961515 A GB 961515A
Authority
GB
United Kingdom
Prior art keywords
moleate
sodium
diazotype
salt
sole
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
GB47920/62A
Inventor
Johannes Henricus Andr Wilders
Bernardus Hubertus Mari Leonen
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.)
Grinten Chem L V D
Chemische Fabriek L Van der Grinten NV
Original Assignee
Grinten Chem L V D
Chemische Fabriek L Van der Grinten NV
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 Grinten Chem L V D, Chemische Fabriek L Van der Grinten NV filed Critical Grinten Chem L V D
Priority to CH1567263A priority Critical patent/CH459751A/en
Publication of GB961515A publication Critical patent/GB961515A/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
    • G03C5/18—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

961, 515. Diazotype photocopy processes. CHEMISCHE FABRIEK L. VAN DER GRINTEN N. V. Dec. 19, 1962, No. 47920/62. Addition to 957,837. Heading G2C. Diazotype copies are produced by the semidry method from imagewise exposed one-component diazotype paper sensitised with a compound wherein X is an anion, R, and R 2 are methyl or ethyl and R 2 may also be cyclohexyl when R 1 is methyl, Ar is a pheny radical having at most two substituents, by application of a thin layer of an acid-reacting aqueous, buffered developing liquid which contains phloroglucinol as the sole or principal coupling component and which contains sodium moleate as the sole or principal buffer salt and has a pH between 6. 5 and 7. The modification of the parent Specification resides in the use of sodium moleate in place of potassium and/or lithium moleate, all other features being as described in the parent Specification. Sodium moleate is stated to be less hygroscopic than the lithium and potassium salt, a proportion of which may be used in addition to the sodium salt if slight hygroscopicity is desired. Specifications 425, 235, 919,037, and 919, 812 also are referred to.
GB47920/62A 1961-08-31 1962-12-19 Process for developing diazotype copies Expired GB961515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1567263A CH459751A (en) 1961-08-31 1963-12-19 Process for developing diazotype copies and developer liquid for carrying out the process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL268816 1961-08-31

Publications (1)

Publication Number Publication Date
GB961515A true GB961515A (en) 1964-06-24

Family

ID=19753263

Family Applications (2)

Application Number Title Priority Date Filing Date
GB32338/62A Expired GB957837A (en) 1961-08-31 1962-08-22 Process for developing diazotype copies
GB47920/62A Expired GB961515A (en) 1961-08-31 1962-12-19 Process for developing diazotype copies

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB32338/62A Expired GB957837A (en) 1961-08-31 1962-08-22 Process for developing diazotype copies

Country Status (6)

Country Link
US (1) US3261684A (en)
CH (1) CH425462A (en)
FR (1) FR1378466A (en)
GB (2) GB957837A (en)
NL (1) NL268816A (en)
SE (1) SE315796B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155762A (en) * 1975-06-03 1979-05-22 Ricoh Co., Ltd. Liquid developer for binary diazo copying materials

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1292607A (en) * 1968-12-28 1972-10-11 Ricoh Kk Improvements in and relating to heat-developable light-sensitive material
US4043816A (en) * 1972-05-26 1977-08-23 Oce-Van Der Grinten N.V. Photographic process for making diazotype copies utilizing small quantity of liquid developer
NL172373C (en) * 1972-05-26 1983-08-16 Oce Van Der Grinten Nv METHOD FOR MAKING DIAZOTYP COPIES
US4147545A (en) * 1972-11-02 1979-04-03 Polychrome Corporation Photolithographic developing composition with organic lithium compound

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE401394A (en) * 1933-02-18
GB425235A (en) * 1933-09-11 1935-03-11 Werner Paul Leuch Improvements in or relating to the production of photographic diazotype prints
US2405523A (en) * 1944-08-09 1946-08-06 Du Pont Light-sensitive photographic compositions and elements
NL65605C (en) * 1947-07-14
US2597306A (en) * 1949-10-05 1952-05-20 Little Inc A Printing process wherein an alkaline substance passing through stencil openings effects coupling of an azo dye in situ
FR1122651A (en) * 1955-02-28 1956-09-11 Cie Francaise De Transformatio Developers for sensitive layers called diazotypes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155762A (en) * 1975-06-03 1979-05-22 Ricoh Co., Ltd. Liquid developer for binary diazo copying materials

Also Published As

Publication number Publication date
US3261684A (en) 1966-07-19
NL268816A (en)
FR1378466A (en) 1964-11-13
CH425462A (en) 1966-11-30
SE315796B (en) 1969-10-06
GB957837A (en) 1964-05-13

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