US3174859A - Process for obtaining multiple photographic positive images by diffusiontransfer - Google Patents

Process for obtaining multiple photographic positive images by diffusiontransfer Download PDF

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Publication number
US3174859A
US3174859A US57903A US5790360A US3174859A US 3174859 A US3174859 A US 3174859A US 57903 A US57903 A US 57903A US 5790360 A US5790360 A US 5790360A US 3174859 A US3174859 A US 3174859A
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US
United States
Prior art keywords
silver halide
positive
negative
layer
silver
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 - Lifetime
Application number
US57903A
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English (en)
Inventor
Albert Emiel Van Hoof
Hart Rene Maurice
Willems Jozef Frans
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.)
Gevaert Photo Producten NV
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Gevaert Photo Producten NV
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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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/42—Structural details
    • G03C8/52—Bases or auxiliary layers; Substances therefor
    • G03C8/56—Mordant layers
    • 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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/02—Photosensitive materials characterised by the image-forming section
    • G03C8/04—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
    • G03C8/06—Silver salt diffusion transfer
    • 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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/24—Photosensitive materials characterised by the image-receiving section
    • G03C8/26—Image-receiving layers
    • G03C8/28—Image-receiving layers containing development nuclei or compounds forming such nuclei

Definitions

  • the present invention relates to the manufacture of a number of images by starting from one same negative according to the silver complex diffusion-transfer process.
  • sufi'icient amounts of silver halide are complexed on the non-exposed parts of the negative which by diffusion-transfer in the non-lightsensitive receiving layer form a positive as a result of the reducing action of the developer which is catalyzed by the development nuclei present in the receiving layer.
  • Suitable basic polymers are e.g.:
  • the compounds used according to the present invention can be incorporated into several layers of the receiving material as far, however, as their presence is compatible with the elements from which such respective layers are composed. In the circumstances, they can be added to an auxiliary layer, a baryta-layer or even to the paper itself, although preferably the applied process consists in incorporating them into the nuclei-containing layer. It was further observed that the favorable effect obtained with the basic polymers depends on the kind of nuclei used.
  • Suitable developing nuclei which act as reducing nuclei for the complexed silver halide are i.e. colloidal silver and sulphur, colloidal metal sulfide such as copper, nickel, tin, silver and zinc sulfide.
  • Other compounds do not serve as nuclei but are able to form such nuclei by interaction with the diffusing silver complexes, either by reduction such as in the case of stannous chloride or by the formation of difiiculty soluble compounds with sulfides or organic compounds which easily split 01f sulphur in the form of a bivalent ion such as in the case of thiosinamine.
  • a further intensification of the image tone is attained, by adding to one of the layers of the positive material minor amounts of anti-fogging agents such as phenyl mercapto tetrazole, benzotriazole, mercapto benzotriazole etc.
  • anti-fogging agents such as phenyl mercapto tetrazole, benzotriazole, mercapto benzotriazole etc.
  • An advantage of the present invention consists therein that the usual developing baths and apparatus for the silver complex diifusion transfer process can be used without any modification.
  • an apparatus containing the usual developing solution prints can be made according to the system of one copy per negative such as described in the U.S. patent specification 2,352,014 as well as a number of prints of one same negative according to the invention.
  • the silver halide emulsions which are suitable for applying the new method comprises silver chloro-bromide emulsions, silver bromide emulsions containing silver chloride and silver chloride emulsions which all of them can also contain small amounts of silver iodide.
  • emulsions are used which mainly contain silver chloride. If, however, exposure times as short as possible are wanted, it is advantageous to use sensitive silver bromide emulsions which contain a small amount of silver chloride.
  • binding agents can be used arabic gum, tragacanth gum, pectine, cellulose derivatives such as methyl cellulose, hydroxyl cellulose and carboxymethyl cellulose, polyvinyl alcohol, party hydrolyzed polyvinyl esters, such as polyvinyl acetate, polyvinyl pyrrolidone, dimethylhydantoine-formaldehyde resins etc. i
  • hydrophilic high-molecular substances can successfully be added to the image-receiving layer which for instance contains gelatin as binding agent in order to keep the adherence of the positive to the negative on a favorable level. Simultaneously, these high-molecular substances can bring along an improvement of the intensity of the positive probably in consequence of an increased reaction power of the nucleicontaining layer thus obtained.
  • the positive material can be made in a very simple way since then only one layer must be applied to the support, e.g. paper.
  • tanning of the colloid layer of the positive exerts an unfavorable infiuence on obtaining a uniform and sufliciently high density on the positive.
  • the addition of tanning agents to colloid layers indeed reduces the permeability of the latter and makes difficult the diffusiontransfer of the complexed silver salts of the light-sensitive layer to the receiving layer.
  • an anti-hardening or softening agent to at least one of the layers of the negative or of the positive is very favorable for obtaining prints with a higher density.
  • softening or anti-hardening agents such as urea, water-soluble thiocyanates, nitrates and halides such as potassium thiocyanate, potassium nitrate, sodium nitrate, potassium iodide, barium chloride, calcium chloride and magnesium chloride, ammonium salts, sodium salicylate, formarnide, dimethyl formamide, ethylene chlorohydrin, chloral hydrate and alpha-naphthalene sodium sulfonate.
  • urea This product can be added in amounts of 5 to 80% on the weight of binding agent present in the negative and/or of the positive layers.
  • Example 1 A negative material is prepared by coating onto a 200 g./m. cardboard paper a contrasty silver chloride emulsion whereto per kg. of emulsion 20 g. of urea and 30 g. of rice starch are added. Next, a 1% aqueous solution of carboxymethyl cellulose is applied to this emulsion layer.
  • a positive receiving material is prepared by coating onto a paper of an appropriate quality a nuclei containing layer from the following suspension:
  • Example 2 Analogously to Example 1, a negative material is prepared. Next, a positive receiving layer is prepared by coating first on a paper of an appropriate quality a nucleicontaining layer from the following suspension:
  • Gelatin 40 Colloidal silver sulphide 0.7 Sodium thiosulphate (anhydrous) 4 Polyethylene-imine hydrochloride 2 Benzotriazole 0.1
  • Example 3 Analogously to Example 1 a ne ative material is prepared. Next, a positive material according to that of Example 2 is used, but whereto 10 g. of urea per litre of nuclei-containing layer composition are added. By repeating the development as mentioned in Example 1, 10 sharp prints can be obtained from one and the same negative.
  • Example 5 Similar favorable results as described in Example 2 can be attained by replacing in the suspension composition of that example 0.7 g. of colloidal silver sulphide by 0.2 g. of colloidal zinc sulphide.
  • a process for obtaining multiple copies from an exposed silver halide emulsion layer which comprises contacting said emulsion layer With a first receiving layer containing development nuclei, a binding agent and a neutralized polyvinyl amine polymer in the presence of silver halide developer and a silver halide solvent, separating the layers and recontacting the silver halide emulsion layer With another of said receiving layers in the presence of said silver halide developer and a silver halide solvent.
  • a process for obtaining multiple copies from an exposed silver halide emulsion layer which comprises contacting said emulsion layer with a first receiving layer containing development nuclei, a binding agent, urea and a neutralized polyvinyl amine polymer in the present of a silver halide developer and a silver halide solvent, separating the layers and recontacting the silver halide emulsion layer with another of said receiving layers in the presence of said silver halide developer and a silver halide solvent.
  • said emulsion layer contains a binding agent and about 580% by Weight of said binding agent of a softening agent for said binding agent.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
US57903A 1959-09-24 1960-09-23 Process for obtaining multiple photographic positive images by diffusiontransfer Expired - Lifetime US3174859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL243731 1959-09-24

Publications (1)

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US3174859A true US3174859A (en) 1965-03-23

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US57903A Expired - Lifetime US3174859A (en) 1959-09-24 1960-09-23 Process for obtaining multiple photographic positive images by diffusiontransfer
US57902A Expired - Lifetime US3174858A (en) 1959-09-24 1960-09-23 Process for obtaining multiple photographic positive images by diffusiontransfer

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Application Number Title Priority Date Filing Date
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Country Status (7)

Country Link
US (2) US3174859A (de)
BE (2) BE595323A (de)
DE (2) DE1104334B (de)
ES (1) ES261251A1 (de)
FR (1) FR1274680A (de)
GB (2) GB961177A (de)
NL (2) NL107219C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325283A (en) * 1964-01-16 1967-06-13 Polaroid Corp Photographic diffusion transfer products and processes employing image receiving elements containing a layer of polyvinyl pyrrolidone and polyvinyl hydrogen phthalate
US3326712A (en) * 1964-01-20 1967-06-20 Mead Corp Transfer print receiving paper and method of producing same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189383B (de) * 1963-09-30 1965-03-18 Agfa Ag Verfahren zur Herstellung von photographischen Reliefbildern, die sich auch als Druckform eignen durch Waermeentwicklung
US3533789A (en) * 1965-09-15 1970-10-13 Polaroid Corp Process of washing and protecting a diffusion transfer photographic silver print
JPS61167949A (ja) * 1985-01-22 1986-07-29 Fuji Photo Film Co Ltd 銀塩拡散転写法写真要素
JPS61281237A (ja) * 1985-06-07 1986-12-11 Fuji Photo Film Co Ltd 銀塩拡散転写法写真要素

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484423A (en) * 1945-10-30 1949-10-11 Eastman Kodak Co Process for the preparation of polyvinylamine salts
US2518698A (en) * 1948-11-18 1950-08-15 Eastman Kodak Co Chemical sensitization of photographic emulsions
US2753263A (en) * 1953-09-10 1956-07-03 Du Pont Silver halide emulsion containing a polymeric polyamine as an acid dye mordant
US2834676A (en) * 1955-07-19 1958-05-13 Sperry Rand Corp Photographic diffusion transfer process for producing multiple direct positive copies
US2857276A (en) * 1954-11-23 1958-10-21 Polaroid Corp Photographic processes and compositions useful therein
US2857274A (en) * 1953-09-04 1958-10-21 Polaroid Corp Photographic compositions and processes
GB805854A (en) * 1954-08-30 1958-12-17 Agfa Ag Process for the production of several positives from one photographic negative by the silver salt diffusion process
GB830189A (en) * 1956-08-23 1960-03-09 Gevaert Photo Prod Nv Improvements in and relating to mordants for soluble compounds of acid character
US2983606A (en) * 1958-07-14 1961-05-09 Polaroid Corp Processes and products for forming photographic images in color
US3017270A (en) * 1958-03-31 1962-01-16 Eastman Kodak Co Photographic silver halide diffusion transfer process
US3075841A (en) * 1956-06-19 1963-01-29 Du Pont Mordant treating process and elements containing same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484420A (en) * 1946-12-31 1949-10-11 Eastman Kodak Co Process of preparing quaternized salts of resinous organic polymers containing a basic tertiary nitrogen atom
US2884057A (en) * 1954-02-25 1959-04-28 American Cyanamid Co Paper of improved dry strength and method of making same
NL214518A (de) * 1956-02-17

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2484423A (en) * 1945-10-30 1949-10-11 Eastman Kodak Co Process for the preparation of polyvinylamine salts
US2518698A (en) * 1948-11-18 1950-08-15 Eastman Kodak Co Chemical sensitization of photographic emulsions
US2857274A (en) * 1953-09-04 1958-10-21 Polaroid Corp Photographic compositions and processes
US2753263A (en) * 1953-09-10 1956-07-03 Du Pont Silver halide emulsion containing a polymeric polyamine as an acid dye mordant
GB805854A (en) * 1954-08-30 1958-12-17 Agfa Ag Process for the production of several positives from one photographic negative by the silver salt diffusion process
US2857276A (en) * 1954-11-23 1958-10-21 Polaroid Corp Photographic processes and compositions useful therein
US2834676A (en) * 1955-07-19 1958-05-13 Sperry Rand Corp Photographic diffusion transfer process for producing multiple direct positive copies
US3075841A (en) * 1956-06-19 1963-01-29 Du Pont Mordant treating process and elements containing same
GB830189A (en) * 1956-08-23 1960-03-09 Gevaert Photo Prod Nv Improvements in and relating to mordants for soluble compounds of acid character
US3017270A (en) * 1958-03-31 1962-01-16 Eastman Kodak Co Photographic silver halide diffusion transfer process
US2983606A (en) * 1958-07-14 1961-05-09 Polaroid Corp Processes and products for forming photographic images in color

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325283A (en) * 1964-01-16 1967-06-13 Polaroid Corp Photographic diffusion transfer products and processes employing image receiving elements containing a layer of polyvinyl pyrrolidone and polyvinyl hydrogen phthalate
US3326712A (en) * 1964-01-20 1967-06-20 Mead Corp Transfer print receiving paper and method of producing same

Also Published As

Publication number Publication date
BE595324A (de)
NL243731A (de)
DE1104334B (de) 1961-04-06
GB961177A (en) 1964-06-17
GB950960A (en) 1964-03-04
US3174858A (en) 1965-03-23
BE595323A (de)
ES261251A1 (es) 1961-12-16
NL107219C (de)
DE1118007B (de) 1961-11-23
FR1274680A (fr) 1961-10-27

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