FR978378A - Improvements in the manufacture of diazo type photographic printing materials - Google Patents

Improvements in the manufacture of diazo type photographic printing materials

Info

Publication number
FR978378A
FR978378A FR978378DA FR978378A FR 978378 A FR978378 A FR 978378A FR 978378D A FR978378D A FR 978378DA FR 978378 A FR978378 A FR 978378A
Authority
FR
France
Prior art keywords
manufacture
photographic printing
printing materials
type photographic
diazo type
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
Other languages
French (fr)
Inventor
Werner Paul Leuch
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.)
HALL
Hall Harding Ltd
Original Assignee
HALL
Hall Harding Ltd
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 HALL, Hall Harding Ltd filed Critical HALL
Application granted granted Critical
Publication of FR978378A publication Critical patent/FR978378A/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
FR978378D 1948-01-09 1948-12-31 Improvements in the manufacture of diazo type photographic printing materials Expired FR978378A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB277685X 1948-01-09
GB221248X 1948-12-22

Publications (1)

Publication Number Publication Date
FR978378A true FR978378A (en) 1951-04-12

Family

ID=26255744

Family Applications (1)

Application Number Title Priority Date Filing Date
FR978378D Expired FR978378A (en) 1948-01-09 1948-12-31 Improvements in the manufacture of diazo type photographic printing materials

Country Status (5)

Country Link
US (1) US2659672A (en)
CH (1) CH277685A (en)
DE (1) DE825203C (en)
FR (1) FR978378A (en)
GB (1) GB644493A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741558A (en) * 1952-03-11 1956-04-10 Grinten Chem L V D Process for the manufacture of diazotype copies
BE521426A (en) * 1952-08-13
BE565736A (en) * 1957-03-16
US3052542A (en) * 1958-07-24 1962-09-04 Gen Aniline & Film Corp Intermediate master for use in the diazotype process and a process for producing same
SE335474B (en) * 1963-04-18 1971-05-24 R Landau
US3309200A (en) * 1963-06-03 1967-03-14 Itek Corp Data reproduction process
US3515554A (en) * 1966-07-25 1970-06-02 Philips Corp Diazo type paper and new high speed diazo reproduction process
US4292394A (en) * 1978-11-13 1981-09-29 E. I. Du Pont De Nemours And Company Process for preparing multicolor toned images on a single photosensitive layer
FR2558274A1 (en) * 1984-01-17 1985-07-19 Chemistry Technology Sa Process for the production of positive images on a substrate from a positive transparent plate employing a diazo sensitive surface

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1444469A (en) * 1917-05-31 1923-02-06 Firm Of Kalle & Co Ag Manufacture of light copy paper
US1760780A (en) * 1927-09-06 1930-05-27 Kalle & Co Ag Light-sensitive layers and process of preparing them
FR660575A (en) * 1927-09-19 1929-07-12 Kalle & Co Ag Process for the preparation of light sensitive layers
NL33180C (en) * 1931-01-16
NL36214C (en) * 1933-02-18
US2298444A (en) * 1940-10-15 1942-10-13 Eastman Kodak Co Light sensitive diazotype material
FR955352A (en) * 1943-08-05 1950-01-14

Also Published As

Publication number Publication date
US2659672A (en) 1953-11-17
CH277685A (en) 1951-09-15
DE825203C (en) 1951-12-17
GB644493A (en) 1950-10-11

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