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
• • 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
  • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
  • Y10S430/136—Coating process making radiation sensitive element

Definitions

• the main object of my invention is to provide a simple, inexpensive and reliable method of compound, in the solution. In such cases it is necessary to 'use combinations of diazonium compounds and coloring components which will not react prematurely even in the presence of the organic liquid and I prefer to-use organic liqwater. When the above precautions are taken there is much less'danger of a premature reaction than when one uses a binder which :is soluble in water, such as gelatine.
• a. volatileorganic liquid with which it is possible to produce a suspension that can readily be made homogeneous after the suspended material has settled during storage.
• Such suspensions can be made in known manner by grinding the material to be suspended with the suspension medi- 11m in a ballmill.
• the binder of a sensitized 'diazo-layer produced by the method of the invention is insoluble in water, it is possible to produce readily the coloring material necessary for developing the image either in an aqueous medium or by means of a gas, such as ammonia, provided the layer is made in a suitable thickness.
• The, method according to the invention has the advantage that it can be carried out in a simplemanner, and it is well adapted 'for use with supports of substantially waterproof mate- -uids whichrhave no, or only a low aflinity,'ior
• Examplei I I form a suspension by placing 1 'of the ZnClzdouble salt of p-diethylaminobenzenediazonium chloride in its iinely-divided'state and 0.6 gm. of finely-divided phloroglueinein suspension in 100 cc. of carbon tetrachloride in which 5 gins. of cellodammar resin is dissolved.
• the resulting black image has a dull appearance which can be made gleaming by spraying the surfacewith a solution of carbon tetrachloride containing 5% cellodammar resin and then re-- moving-.-the carbon tetrachloride .iiyayaporization.
• I may add to the above suspensions a quantity of acid, such as tartaric acid, oxalic acid or the likein order to'avoid the premature production of coloring material.
• Example II I form a suspension by placing 4 gm. of finelydivided ZnClajand CdCh-double' salts oip-benzyl ethyl amino benzene 'diazonium chloride in suspension in cos. of trichlorethylene in which 5 gms. of cellodammar resin is dissolved. This suspension is applied to the surface oi. an aluminium plate and the solvent'is removed similarlyto Example I. After exposure according. to image is developed by treating the layer with a solution of 0.5 gm. oi'phloroglucin in liloiccs. of
• binders consisting of materials or mixtures of -materials such as polymerised hydrocarbons, e. g., polystyrol, polymerised esters of unsaturated fatty acid derived for instance, from'acrylic acid and its homologues, vinyl acetic acid or the like, artificial and natural resins and various types of gums such as ester gum, mastic and colophony.
• chlorinated hydrocarbons such as .trichlorethylene and carbon tetrachloride and in addition materials such as benzene, toluene or the like.
• the steps of applyin to the survolatilizing the face of a support a suspension of a diazonium' 3.
• the steps of applying to the surface of a support of substantially waterproof material obvious modifications will present themselves to I one skilled in this'art. r
• a diazotype light-sensitive material made by the method of claim 1.
• a diazotype light-sensitive material made by the method of claim 4.

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)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7348665

Family Applications (1)

Country Status (7)

Cited By (6)

Families Citing this family (5)

Family Cites Families (2)

• 0
  • NL NL56197D patent/NL56197C/xx active
  • BE BE438667D patent/BE438667A/xx unknown
• 1939
  • 1939-04-11 DE DEN43148A patent/DE757727C/de not_active Expired
• 1940
  • 1940-04-08 GB GB6347/40A patent/GB539314A/en not_active Expired
  • 1940-04-09 CH CH217258D patent/CH217258A/de unknown
  • 1940-04-10 FR FR864737D patent/FR864737A/fr not_active Expired
  • 1940-05-01 US US332846A patent/US2318352A/en not_active Expired - Lifetime

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