GB867629A - Process for making positive diazotype copies and light-sensitive material suited for this process - Google Patents

Process for making positive diazotype copies and light-sensitive material suited for this process

Info

Publication number
GB867629A
GB867629A GB1471/58A GB147158A GB867629A GB 867629 A GB867629 A GB 867629A GB 1471/58 A GB1471/58 A GB 1471/58A GB 147158 A GB147158 A GB 147158A GB 867629 A GB867629 A GB 867629A
Authority
GB
United Kingdom
Prior art keywords
diazo
coupler
methyl
benzyl
zinc chloride
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
GB1471/58A
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
Publication of GB867629A publication Critical patent/GB867629A/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
    • G03C1/54—Diazonium salts or diazo anhydrides

Landscapes

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

Abstract

867,629. Photographic diazotype processes and materials. CHEMISCHE FABRIEK L. VAN DER GRINTEN N.V. Jan. 15, 1958 [Feb. 5, 1957], No. 1471/58. Class 98(2) An actinically fluorescent mercury vapour lamp is used as light source for imagewise exposure of material sensitised with a diazo compound of general formula:- where R 1 R 2 R 3 represent alkyl groups with at the most 4 carbon atoms and R 2 additionally may represent an aralkyl group with at the most 7 carbon atoms. This combination of lamp and sensitiser has the advantage that the visually observable end point of the exposure lies particularly near the point at which the material has been exposed just sufficiently for practice, and may result in black images of good covering power and also good resistance to and absorption of ultra violet light if used for recopying. Examples use a Philips "TL65 watt/5" low pressure lamp with diazo sensitisers on paper supports comprising I the zinc chloride double salt of 1-diazo-4-(methyl) (benzyl) amino-3-ethoxybenzene (prepared by refluxing o-ethoxy-N-methyl aniline, benzyl chloride and soda ash in ethanol, evaporating the solvent, distilling under reduced pressure to obtain oethoxy-N-methyl-N-benzyl aniline and nitrosating, reducing and diazotising this) and surface development using phloroglucinol as coupler; II the zinc chloride double salt of 1-diazo-4-din-propylamino-3-n-propoxybenzene the preparation of which is indicated and a phloroglucinol/ resorcinol coupler; III the zinc chloride double salt of 1-diazo-4-diethylamino-3-ethoxybenzene with a coupler for ammonia development. Compounds similar to those of Examples I, II are included in the invention irrespective of the exposure feature.
GB1471/58A 1957-02-05 1958-01-15 Process for making positive diazotype copies and light-sensitive material suited for this process Expired GB867629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL214328 1957-02-05

Publications (1)

Publication Number Publication Date
GB867629A true GB867629A (en) 1961-05-10

Family

ID=19750830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1471/58A Expired GB867629A (en) 1957-02-05 1958-01-15 Process for making positive diazotype copies and light-sensitive material suited for this process

Country Status (7)

Country Link
US (1) US3081166A (en)
BE (1) BE564343A (en)
CH (1) CH366743A (en)
DE (1) DE1092767B (en)
FR (1) FR1191365A (en)
GB (1) GB867629A (en)
NL (2) NL110414C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL233065A (en) * 1958-11-10
NL98612C (en) * 1958-11-10
DE1224611B (en) * 1963-09-25 1966-09-08 Kalle Ag Photosensitive copy material for the diazotype with 2,5-dialkoxy-4-tert-aminobenzene-diazonium salts
US3382070A (en) * 1964-01-02 1968-05-07 Gen Aniline & Film Corp Black-line moist diazotype process
US3331690A (en) * 1964-06-08 1967-07-18 Ibm Development of diazotype papers without a coupler
DE1793331C3 (en) * 1968-09-03 1979-11-22 Hoechst Ag, 6000 Frankfurt Benzene diazonium compounds
US3719491A (en) * 1968-06-18 1973-03-06 Gaf Corp Diazo-type reproduction process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532744A (en) * 1945-07-04 1950-12-05 Gen Aniline & Film Corp Diazotype containing as the azo component a quaternary salt of 2-methyl-6-methoxy-benzoselenazole
GB629656A (en) * 1946-09-12 1949-09-26 Gen Aniline & Film Corp Process for positive diazo-type and negative metal reproduction images and light-sensitive material therefor
US2551570A (en) * 1946-10-24 1951-05-01 Gen Aniline & Film Corp Azo dye components of the amino naphthol series for diazotypes
US2606117A (en) * 1947-06-05 1952-08-05 Gen Aniline & Film Corp Diazotype photoprinting materials
US2542848A (en) * 1948-10-22 1951-02-20 Gen Aniline & Film Corp Diazotypes containing thiobarbituric acid
DE832396C (en) * 1950-01-17 1952-02-25 Kalle & Co Ag Light-sensitive layers for the diazotype

Also Published As

Publication number Publication date
CH366743A (en) 1963-01-15
US3081166A (en) 1963-03-12
DE1092767B (en) 1960-11-10
NL214328A (en)
BE564343A (en)
NL110414C (en)
FR1191365A (en) 1959-10-19

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