US2359653A - Production of photographic prints - Google Patents

Production of photographic prints Download PDF

Info

Publication number
US2359653A
US2359653A US432526A US43252642A US2359653A US 2359653 A US2359653 A US 2359653A US 432526 A US432526 A US 432526A US 43252642 A US43252642 A US 43252642A US 2359653 A US2359653 A US 2359653A
Authority
US
United States
Prior art keywords
resist
production
parts
photographic prints
reserve
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
US432526A
Inventor
Lewis Robert Thomas
Lewis Ross Inglis
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2359653A publication Critical patent/US2359653A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/18—Colouring
    • 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
    • G03C11/00—Auxiliary processes in photography
    • G03C11/04—Retouching
    • 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
    • Y10S524/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S524/925—Natural rubber compositions having nonreactive materials, i.e. NRM, other than: carbon, silicon dioxide, glass titanium dioxide, water, hydrocarbon or halohydrocarbon

Definitions

  • This invention relates to the production of photographs and has for its object to provide an improved process and means for use therein for obtaining toned, tinted, dyed or shaded prints or prints differing from the original negative.
  • Our invention comprises a resist or reserve (which is light, water, acid, bleach, fixer and developer proof) adapted to be detachably secured to the negative, the printing paper, lantern slide or the like in the form of a paste or solution or in the form of a sheet, such resist or reserve comprising rubber preferably in the form of pale crepe rubber which acts as a binding agent and liquid resist, a colour body such as fast helio red to give colour depth and assist in preventing light penetration, a pulverulent body which gives opacity such as titanium dioxide, a body such as paraflin wax to give smooth flowing properties to the mixture, and with if desired a preservative, such as magnesium dioxide which maintains the mix in serviceable condition for a long period.
  • a rubber solvent such as carbon tetrachloride, but excludmg ammonia.
  • the invention further comprises the process of producing photographs in which the resist or reserve is applied to a selected part or parts of the negative after developing and fixing or to the photographic printing paper before or after the printing operation so that such part or parts is or are unaffected by light or by a subsequent toning, tinting, dyeing, shading or like operation applied to the whole negative or print and may thereafter when the resist or reserve has been removed be diflerently treated whilst other parts are protected by application thereto of the resist or reserve.
  • the invention further comprises the improved resist and the improved methods of using the same in the production of photographs as hereinafter described.
  • the resist or reserve has the following composition, the parts being by weight.
  • the mixture or mastic is dissolved in 64 parts of carbon tetrachloride.
  • Claim. (Cl. 260-764)
  • the resist is applied by brush to part of a sensitized photographic sheet which is then exposed under a negative, developed, fixed and washed. The portion covered by the resist is unaffected.
  • the resist can then be rubbed OE and the part thereunder may be exposed under a different negative, developed and fixed in the usual way.
  • the part unaffected by the first exposure under the negative may have the resist removed before developing and fixing, when it will be finished in the basic colour of the printing paper.
  • the resist material is applied to a sheet of paper which constitutes a carrier, and can be cut to any desired shape to form a mask for a selected part or selected parts of a photographic printing paper.
  • the resist is caused to adhere to the latter before it has dried upon the carrier or after damping with a rubber solvent.
  • the carrier for the resist material intricate designs or patterns can be masked for differential treatment.
  • This masking is particularly useful in colour toning and tinting, and especially in multiple toning, tinting, dyeing and staining, where several separate masks can be applied and removed successively as the toning, tinting or like progresses.
  • this may be done locally by applying the resist around the area to be treated so as to make a pool of such area into which the bleacher and subsequently the sulphide solution or any other toner, tint or dye can be filled by' a brush, a squirt or small pump, such as a fountain pen filler.
  • a mask such as before referred to is applied over large areas to be protected and then the finer outline is finished by carefully painting the resist solution around the mask.
  • the masks can be cut out to a particular shape in bulk by suitable means when a number of the same print has to be treated.
  • the resist can be applied by means similar to a duplicating machine or by blocks or other printing devices. Where duplicating type machines are used, the resist in fluid form is printed on to the printing paper through a stencil. The edges of the resist pattern on the paper may be touched up or finished by hand, by brushing or otherwise if necessary.
  • Our resists can be used in the process of producing coloured prints by direct development by mother developers and colour formers to control the final colouring of the various parts of the picture or photograph.
  • the improved resist or reserve for use in photography consisting of-- Parts by weight Pale crepe rubber 48 t Fast helio red 8 Titanium dioxide l 2 Paraflin wax 1 Magnesium di e 1 l 5 dissolved in 64 parts of carbon tetrachloride.
  • ROBERT THOMAS LEWIS ROSS INGLIS IrEWIS.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Color Printing (AREA)

Description

Patented Oct. 3, 1944 PRODUCTION OF PHOTOGRAPHIC PRINTS Robert Thomas Lewis and Ross Inglis Lewis, Manchester, England No Drawing. Application February-26, 1942, Se-
rial No. 432,526. In Great Britain December 14,
This invention relates to the production of photographs and has for its object to provide an improved process and means for use therein for obtaining toned, tinted, dyed or shaded prints or prints differing from the original negative.
Our invention comprises a resist or reserve (which is light, water, acid, bleach, fixer and developer proof) adapted to be detachably secured to the negative, the printing paper, lantern slide or the like in the form of a paste or solution or in the form of a sheet, such resist or reserve comprising rubber preferably in the form of pale crepe rubber which acts as a binding agent and liquid resist, a colour body such as fast helio red to give colour depth and assist in preventing light penetration, a pulverulent body which gives opacity such as titanium dioxide, a body such as paraflin wax to give smooth flowing properties to the mixture, and with if desired a preservative, such as magnesium dioxide which maintains the mix in serviceable condition for a long period. To produce a paste or solution, the mix or mastic is dissolved in a rubber solvent, such as carbon tetrachloride, but excludmg ammonia.
The invention further comprises the process of producing photographs in which the resist or reserve is applied to a selected part or parts of the negative after developing and fixing or to the photographic printing paper before or after the printing operation so that such part or parts is or are unaffected by light or by a subsequent toning, tinting, dyeing, shading or like operation applied to the whole negative or print and may thereafter when the resist or reserve has been removed be diflerently treated whilst other parts are protected by application thereto of the resist or reserve.
The invention further comprises the improved resist and the improved methods of using the same in the production of photographs as hereinafter described.
In one convenient application of the invention, the resist or reserve has the following composition, the parts being by weight.
The mixture or mastic is dissolved in 64 parts of carbon tetrachloride.
1 Claim. (Cl. 260-764) In one way of using the resist, it is applied by brush to part of a sensitized photographic sheet which is then exposed under a negative, developed, fixed and washed. The portion covered by the resist is unaffected. The resist can then be rubbed OE and the part thereunder may be exposed under a different negative, developed and fixed in the usual way. The part unaffected by the first exposure under the negative may have the resist removed before developing and fixing, when it will be finished in the basic colour of the printing paper.
In another example, the resist material is applied to a sheet of paper which constitutes a carrier, and can be cut to any desired shape to form a mask for a selected part or selected parts of a photographic printing paper. The resist is caused to adhere to the latter before it has dried upon the carrier or after damping with a rubber solvent. By the use of the carrier for the resist material, intricate designs or patterns can be masked for differential treatment. This masking is particularly useful in colour toning and tinting, and especially in multiple toning, tinting, dyeing and staining, where several separate masks can be applied and removed successively as the toning, tinting or like progresses.
In some cases where small areas are to be toned or tinted, this may be done locally by applying the resist around the area to be treated so as to make a pool of such area into which the bleacher and subsequently the sulphide solution or any other toner, tint or dye can be filled by' a brush, a squirt or small pump, such as a fountain pen filler.
In another application of the invention a mask such as before referred to is applied over large areas to be protected and then the finer outline is finished by carefully painting the resist solution around the mask.
The masks can be cut out to a particular shape in bulk by suitable means when a number of the same print has to be treated.
If desired the resist can be applied by means similar to a duplicating machine or by blocks or other printing devices. Where duplicating type machines are used, the resist in fluid form is printed on to the printing paper through a stencil. The edges of the resist pattern on the paper may be touched up or finished by hand, by brushing or otherwise if necessary.
Our resists can be used in the process of producing coloured prints by direct development by mother developers and colour formers to control the final colouring of the various parts of the picture or photograph.
The improved resist or reserve for use in photography consisting of-- Parts by weight Pale crepe rubber 48 t Fast helio red 8 Titanium dioxide l 2 Paraflin wax 1 Magnesium di e 1 l 5 dissolved in 64 parts of carbon tetrachloride.
ROBERT THOMAS LEWIS. ROSS INGLIS IrEWIS.
US432526A 1940-12-14 1942-02-26 Production of photographic prints Expired - Lifetime US2359653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2359653X 1940-12-14

Publications (1)

Publication Number Publication Date
US2359653A true US2359653A (en) 1944-10-03

Family

ID=10904664

Family Applications (1)

Application Number Title Priority Date Filing Date
US432526A Expired - Lifetime US2359653A (en) 1940-12-14 1942-02-26 Production of photographic prints

Country Status (1)

Country Link
US (1) US2359653A (en)

Similar Documents

Publication Publication Date Title
US2359653A (en) Production of photographic prints
DE876506C (en) Photographic developer
US2036994A (en) Photographic film and method of treating same
US1905188A (en) Positive photographic film
DE532593C (en) Process for the production of multicolor images on layer supports coated on both sides with halogen silver emulsion
US2017853A (en) Method of patterning artificial leather or oil cloth and similar band-forming fibrous material
US3157499A (en) Scribe coat on silver halide polyester film
DE1016127B (en) Process for making hectographic prints and photographic material therefor
US1669869A (en) Process of producing colored-photographic prints
US2151065A (en) Photographic film and method of treating same
US2260092A (en) Method of creating cartoon effects
GB547382A (en) Improvements in and relating to the production of photographic prints
US2240945A (en) Method and article for producing shaded designs
US2236417A (en) Process of producing colored prints
DE593965C (en) Method for producing washout relief images
DE549598C (en) Process for the preparation of two-color photographic images
DE879361C (en) Process for making color photographs
DE851721C (en) Method and material for the production of multicolored images with the aid of a three-pack negative material, the topmost layer of which can be peeled off and which is copied separately from the two layers below
US1583689A (en) Engraving process
DE928622C (en) Process for coloring photographs and their photomechanical reproductions
DE557698C (en) Process for the direct photographic production of master copies in full tone after letterpress printing
DE509762C (en) Process for making reflex copies
DE649304C (en) Process for the production of colorable diffusion or stain images, whereby undeveloped, light-sensitive layers containing metal salts which have not been developed under the copier are brought into contact with gelatinous layers containing ferrous salts
DE874705C (en) Process for the production of a colored colloid layer, in particular in multilayer material for color photography
DE654781C (en) Method for producing positive or negative master copies of halftone or line positives or negatives using a washout relief