GB1259849A - Improvements in and relating to two-component diazotype materials - Google Patents

Improvements in and relating to two-component diazotype materials

Info

Publication number
GB1259849A
GB1259849A GB2015369A GB2015369A GB1259849A GB 1259849 A GB1259849 A GB 1259849A GB 2015369 A GB2015369 A GB 2015369A GB 2015369 A GB2015369 A GB 2015369A GB 1259849 A GB1259849 A GB 1259849A
Authority
GB
United Kingdom
Prior art keywords
carbon atoms
formula
blue
alkyl
hydrogen
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
GB2015369A
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB1259849A publication Critical patent/GB1259849A/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
    • G03C1/58—Coupling substances therefor

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

1,259,849. Diazotype materials. RICOH K. K. April 21, 1969 [May 6, 1968], No.20153/69. Heading G2C. A two component diazotype material comprises a diazonium compound of formula:- wherein R is alkyl with 1-4 carbon atoms and X is an anion, two couplers giving blue and yellow dye images respectively and pyrophosphoric acid; the coupler or couplers giving a blue image being of one of the formula:- wherein R 1 and R 2 are alkyl with 1-3 carbon atoms or together complete a heterocyclic ring n is 2 or 3 and R 3 is hydrogen, halogen or alkoxy with 1-4 carbon atoms and the couplers giving the yellow image being of the formula wherein R 4 is hydrogen or aminoethyl, R 5 is aryl, benzyl, benzoryl or acetoacetaminoethyl. The photo-sensitive layer may also contain caffeine and methylene blue. The support may be subbed with a polyvinyl acetate/starch/silica layer which may contain one of the couples. Comparisons using sulphuric, malonic, naleic, oxalic and succinic acid instead of pyrophosphoric acid are given.
GB2015369A 1968-05-06 1969-04-21 Improvements in and relating to two-component diazotype materials Expired GB1259849A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3016168 1968-05-06

Publications (1)

Publication Number Publication Date
GB1259849A true GB1259849A (en) 1972-01-12

Family

ID=12296017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2015369A Expired GB1259849A (en) 1968-05-06 1969-04-21 Improvements in and relating to two-component diazotype materials

Country Status (3)

Country Link
DE (1) DE1923115A1 (en)
GB (1) GB1259849A (en)
NL (1) NL141298B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207110A (en) * 1977-10-17 1980-06-10 Hoechst Aktiengesellschaft Diazotype material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL165568C (en) * 1970-05-13 1981-04-15 Oce Van Der Grinten Nv TWO COMPONENTS OF DIAZOTYPE MATERIAL.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4207110A (en) * 1977-10-17 1980-06-10 Hoechst Aktiengesellschaft Diazotype material

Also Published As

Publication number Publication date
NL141298B (en) 1974-02-15
NL6906894A (en) 1969-11-10
DE1923115A1 (en) 1969-11-20

Similar Documents

Publication Publication Date Title
GB1063132A (en) Improvements in or relating to light-sensitive two-component diazotype materials adapted for heat development
GB1165734A (en) Heterocyclic Styryl Dyes
GB1066965A (en) Photographic print-out materials
GB1516547A (en) Magenta-forming couplers and silver halide photographic materials containing them
GB1427966A (en) Heat-processable photographic silver salt material
GB1039453A (en) 3-pyrazolidinone derivatives and their use in photographic developers
GB1259849A (en) Improvements in and relating to two-component diazotype materials
GB1128113A (en) Dyes, processes for preparing them and photographic elements containing them
GB1472001A (en) Colour photographic silver halide multilayer material with improved colour density
GB1224632A (en) Diazotype photographic copying material
GB808527A (en) Diazotype photoprinting materials and processes for preparing same
GB1059856A (en) Diazotype films
GB1031073A (en) Thermographic copying process and material
GB818687A (en) Colour photographic materials
GB1211805A (en) Process for the production of light-sensitive diazo compounds and light-sensitive material produced with these diazo compounds
GB1152477A (en) Improvements in or relating to Diazotype Photoprinting Materials
GB1128762A (en) A heat developable diazotype material for reproducing documents by the diazo type process
GB1338701A (en) Diazotype film material
GB1236690A (en) Colour photographic light-sensitive silver halide elements
GB1307314A (en) Heat developable diazotype copying materials
GB1186441A (en) Process for Stabilising Developed Photographic Images
GB1135206A (en) Carbocyanine dyes, process for preparing such dyes, photographic silver halide emulsions sensitized with such dyes and photographic elements having such emulsions
GB1354413A (en) Heat-sensitive copying material and process
GB1217294A (en) Improvements in and relating to photosensitised materials
GB1156623A (en) Improvements in or relating to Diazotype Materials

Legal Events

Date Code Title Description
49R Reference inserted (sect. 9/1949)
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees