US3607276A - Process for making metal-glossy images and projection using the same - Google Patents

Process for making metal-glossy images and projection using the same Download PDF

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Publication number
US3607276A
US3607276A US705457A US3607276DA US3607276A US 3607276 A US3607276 A US 3607276A US 705457 A US705457 A US 705457A US 3607276D A US3607276D A US 3607276DA US 3607276 A US3607276 A US 3607276A
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United States
Prior art keywords
image
silver halide
silver
colloidal
sulfide
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Expired - Lifetime
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US705457A
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English (en)
Inventor
Shingo Ooue
Hiroyuki Ueda
Yoshihide Hayakawa
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Fujifilm Holdings Corp
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Fuji Photo Film Co Ltd
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Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
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    • 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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/40—Chemically transforming developed images

Definitions

  • a projection process which comprises treating a silver halide image with a solution containing a'solvent for silver halide to provide a metal-glossy image, applying to the surface of the metal-glossy image an illuminating light beam for transmission and an illuminating light beam for reflection, combining the penetrating light beam and the reflected light beam, and projecting on a screen the combined light beam to provide a projected image having various contrasts.
  • the present invention relates to a process for making a metal-glossy image from an image composed of silver halide and an image projection process comprising applying an illuminating light for transmission and for reflection to said metalglossy image while varying the light intensity ratio, synthesizing the transmitted light and reflected light and projecting on a screen to thus obtain projected images varying in the contrast leading to a reversal image.
  • a metal-glossy photographic image can readily be made having a high reflectance at an image area of high transmission density, so that the contrast of the image may be varied easily by means of a contrast variable printing apparatus, the automatic printing of a printing paper, printing of a movie film, etc. are thereby much enhanced.
  • the reason is that in an automatic printing machine using a paper roller, it is impossible to exchange a printing paper for another according to the contrast of an image. Accordingly, the quality of an image obtained by an automatic printing machine will be markedly improved if the contrast of an image can be freely varied by an optical system of the printing machine. The same is true of the printing of a positive film for cinema.
  • the former process consists in treating an image composed of silver halide with a solution containing physical developing nuclei and then treating with a developing solution containing a solvent for silver halide.
  • the latter image projection process consists in applying an illuminating light for transmission and for reflection to the surface of the metal glossy image obtained by the former process while varying the light intensity ratio, synthesizing the transmitted light and reflected light and projecting on a screen to obtain projected images varying in the contrast leading to a reversal image.
  • a photographic image having an optional contrast can be made by printing an image obtained by the image projection process of the invention on a suitable light-sensitive material.
  • the metal-glossy image of the invention has a higher reflectance as a mirror surface at a high transmission density area than at a low transmission density area and the preparation thereof is easy.
  • the metal-glossy image of the invention not only the contrast of an image can be varied within a certain range by the foregoing optical system, but also, if a reflection illumination is applied to an image, such as by forming a negative image through a transmission illumination, a positive image is obtained. That is to say, the positive-positive photographic process can be carried out according to the invention as in the case of subjecting a photographic light-sensitive material to reversal developing, since a negative image is projected, printed or viewed as a positive image and vice versa. Moreover, the metal-glossy image of the invention is available for the reversal viewer, projection ofa slide or movie, etc.
  • the image having a metallic gloss according to the invention is obtained by treating an image composed of silver halide with a solution containing physical developing nuclei thereby to incorporate physical developing nuclei in a range of 0.001 to 0.2 micron in said silver halide image and then treating with a developing solution containing a solvent for silver halide.
  • optical system wherein a photographic image made by the process of the invention is projected on a screen while varying the contrast thereof.
  • image 1 is projected on light sensitive material for printing or screen 3 through projection lens 2
  • image I is subjected to transmission illumination by means of light source 4 for transmission illumination and condenser lens 5 for transmission illumination, while being subjected to reflection illumination by means of light source 6 for reflection illumination and halfsilvered mirror 8 (or partly reflecting and partly transmitting mirror).
  • Both of the illuminating systems are so designed that the illumination intensity ratio may be varied, for example, by inserting light quantity modulators 9, 10 in the illuminating systems respectively or by making the intensity of the light sources variable.
  • the light modulator is so composed that two optical wedges are moved in the reverse direction to each other or two sheets of polarizers are arranged, the mutual azimuth of which is variable.
  • incandescent lamps are used as light sources 4, 6 and the voltages are varied to control the quantity of light, the colors of the transmission illumination and reflection illumination are different. If it is necessary to balance the color in such case, a monochromatic filter is preferably used for the projection optical system.
  • E is the intensity of illumination of a transmission illumination on an image surface
  • E is the intensity of illumination of a reflection illumination light on the same
  • T is the transmittance of the image to an incident light beam
  • R is the reflectance
  • the brightness B of a projected image is given by the following relation:
  • C is a constant determined by the F-number of a projected lens, constants of the optical elements and their arrangement.
  • E 0, that is, utilizing only a penetrating light
  • B is proportional to T, for example, an ordinarily developed negative gives a negative image.
  • R for example, an ordinarily developed negative gives a reversed positive image.
  • a positive image having a desirable tone can readily be made from any of various photographic images having a metallic gloss and contrast of a wide range as a matter to be photographed by the use of a positive film or printing paper having one kind of contrast.
  • the contrast of an image can be made uniform throughout a picture by adjusting to that of another area in the picture.
  • the following example is given in order to illustrate the in- 5 vention without limiting the same.
  • the commonly used silver halide photographic sensitive material is also used therein.
  • As the silver halide of the light-sensitive material there are used one or more of silver bromide, silver chloride and silver iodide, above all, silver chloride being the most suitable to obtam a metallic gloss.
  • Exposure A silver halide photographic sensitive material is exposed in a camera or printed with another photographic image. 2. Developing is carried out at 20 C. for 5 minutes using a developing solution of the following composition:
  • a bleaching solution is preferably used capable of forming silver chloride.
  • Physical Developing Nucleus Bath This treatment consists in immersing a sample in a treating solution contain ing physical developing nuclei.
  • physical developing nuclei may be used colloidal metal particles such as colloid silver and colloid gold, colloidal metal sulfide particles such as colloid silver sulfide, colloid zinc sulfide, colloid nickel sulfide and colloid gold sulfide and colloidal sulfur.
  • the particles have preferably a size of 0.00l to 0.2 micron.
  • Treatment using colloid silver (9) a and using colloid silver sulfide (9) b are given for example.
  • the sample is immersed in a solution containing, for instance, 0.3 g. of colloid silver per 1,000 ml. at 40 C. for 10 minutes.
  • the colloid silver is prepared by the known process, for example, by reducing silver nitrate in a gelatin solution with amidol or by reducing a silver chloride emulsion with hydrazine. colloidal silver particles ranging in size from 0.01 to 0.08 micron give good results.
  • the treating solution contains preferably 0. l0.6 g. of colloid silver per 1,000 ml.
  • colloidal Silver Sulfide Bath The sample is immersed in a treating solution containing, for instance, 0.05 g. of colloidal silver sulfide particles per l,000 ml. of water at 40 C. for 10 minutes.
  • the colloidal silver sulfide particles are prepared by a known process comprising adding sodium sulfide to a thiosulfate complex of silver in gelatin. Col loidal silver sulfide particles ranging in size from 0.001 to 0.03 micron give good results.
  • the amount of silver in the treating solution, used in the method using colloidal silver sulfide is less than that in the method using colloidal silver.
  • the treating solution contains preferably 0.0l0.5 g. of silver sulfide, in particular, 0.03-0.08 g. of silver sulfide per 1,000 ml.
  • the solvent for silver halide to be added to a developing solution for glossing as in the example is selected from the class consisting of thiosulfate, sulfite and halogen slats besides the well known solvents such as thiocyanate, ammonium salts, organic bases, etc.
  • Methods of making an image composed of silver halide are classified roughly into the following three groups, in addition to the method of converting into a silver halide image by sub jecting a silver image to bleaching, said silver image being obtained by developing and fixing a silver halide photographic light light-sensitive material after exposure:
  • the first is a method of utilizing the so-called photoetching art. This comprises providing a layer of light-sensitive polymer which properties change with light on a layer of silver halide coated onto a support, adhering thereto a photographic image formed on a film, exposing the assembly to a light existing in the sensitive wavelength region of said polymer, treating to form an image of the light-sensitive polymer according to photographic image, treating with a solvent for silver halide to remove silver halide at an area where the polymer is removed, and then removing the polymer layer .to retain a photographic image composed ofsilvcr halide.
  • the second is an application of the printing method. That is a printing plate of image is made by the conventional method and printed on a support such as paper or film by the use of a solution containing silver halide and having a suitable viscosity as well as adhesiveness to said support in place of a printing ink, thereby to give an image composed of silver halide.
  • a silver halide image may be made by carrying out printing on a layer of silver halide according to an image by the use of a solvent for silver halide in place of a printing ink and treating with water to thus remove silver halide partly.
  • the third is a method of obtaining a silver halide image, comprising writing an image directly on a support such as paper or film in pen or brush by the use ofa solution containing silver halide.
  • a silver halide image may be obtained by writing an image directly on a lightsensitive material of silver halide in pen or brush by the use of a solvent for silver halide in place of an ink to thus remove silver halide partly.
  • the process of the invention is applicable to any of the images composed of silver halide made by the foregoing various methods, resulting in an image having a metallic gloss in each case.
  • the image is not necessarily suitable for projection with change of the contrast due to a high penetrating density and low reflecting density of said support, but finds uses for the publication of advertisements, displays, etc., being capable of forming a peculiar visual effect due to the metallic gloss.
  • a process for making a metal-glossy image in a swellable silver halide emulsion comprising sequentially forming a silver halide image in said emulsion by imagewise exposing a light-sensitive silver halide emul sion, fixing said emulsion, and bleaching said emulsion,
  • said physical developing nuclei are selected from colloidal silver, colloidal gold, colloidal silver sulfide, colloidal zinc sulfide, colloidal nickel sulfide, colloidal gold sulfide, and colloidal sulfur.
  • said solvent for silver halide is an aqueous solution of a member selected from the group consisting of a thiosulfate, a sulfite, a halide, a thiocyanate, an ammonium salt, and an organic base.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
US705457A 1967-02-14 1968-02-14 Process for making metal-glossy images and projection using the same Expired - Lifetime US3607276A (en)

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JP942067 1967-02-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312938A (en) * 1979-07-06 1982-01-26 Drexler Technology Corporation Method for making a broadband reflective laser recording and data storage medium with absorptive underlayer
US4343879A (en) * 1980-08-22 1982-08-10 Drexler Technology Corporation Multiple layer optical data storage and recording media
US4569903A (en) * 1980-02-11 1986-02-11 Fuji Photo Film Co., Ltd. Optical recording medium
US5952159A (en) * 1991-05-04 1999-09-14 Agfa-Gevaert Ag Method of photographic processing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149970A (en) * 1959-01-10 1964-09-22 Agfa Ag Production of photographic silver images by physical development
US3291608A (en) * 1964-02-03 1966-12-13 Eastman Kodak Co Enhanced activity of nuclei for physical development

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149970A (en) * 1959-01-10 1964-09-22 Agfa Ag Production of photographic silver images by physical development
US3291608A (en) * 1964-02-03 1966-12-13 Eastman Kodak Co Enhanced activity of nuclei for physical development

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4312938A (en) * 1979-07-06 1982-01-26 Drexler Technology Corporation Method for making a broadband reflective laser recording and data storage medium with absorptive underlayer
US4569903A (en) * 1980-02-11 1986-02-11 Fuji Photo Film Co., Ltd. Optical recording medium
US4343879A (en) * 1980-08-22 1982-08-10 Drexler Technology Corporation Multiple layer optical data storage and recording media
US5952159A (en) * 1991-05-04 1999-09-14 Agfa-Gevaert Ag Method of photographic processing

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Publication number Publication date
BE710763A (zh) 1968-06-17

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