Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
  • B41M3/001—Printing processes to produce particular kinds of printed work, e.g. patterns using chemical colour-formers or chemical reactions, e.g. leuco dyes or acids
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
  • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
• • 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
  • G03C1/72—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705
  • G03C1/73—Photosensitive compositions not covered by the groups G03C1/005 - G03C1/705 containing organic compounds
  • G03C1/731—Biological compounds
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G13/00—Electrographic processes using a charge pattern
  • G03G13/26—Electrographic processes using a charge pattern for the production of printing plates for non-xerographic printing processes
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
  • G03G5/02—Charge-receiving layers
  • G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
  • G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
  • G03G5/0503—Inert supplements
  • G03G5/051—Organic non-macromolecular compounds
• • G—PHYSICS
  • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
  • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
  • G03G9/00—Developers
  • G03G9/08—Developers with toner particles

Definitions

• a recording method which comprises forming an image corresponding to the difference in the amount of an enzyme, the image being in conformity to an image to be recorded on a material capable of reacting in the presence of an enzyme and causing the reaction of said material with said enzyme by utilizing the enzyme composing said image, whereby the image to be recorded is formed on said material.
• the present invention relates to a novel recording method.
• the method includes an amplifying step having high efficiency.
• a wide amplification is conducted when a latent image formed by light exposure is reduced with a developer.
• electrophotography or xerography there is conducted an amplification by the cross-section of toners.
• electrolytic electrophotography in which residual photoconductivity is utilized, the reducing current during the life of the residual photoconductivity contributes the amplification.
• An object of this invention is to provide a recording method in which biochemical amplification is utilized instead of utilizing a conventional chemical or physical amplification or sensitization.
• the recording method of this invention utilizes the image of an enzyme. That is, the present invention relates to a recording method in which an image of an enzyme is formed on a material capable of causing reaction in the presence of an enzyme due to the difference in the amount of the enzyme corresponding to the image to be recorded. The reaction by the enzyme is caused on said material by utilizing the enzyme forming the image to provide the image on the material.
• reaction can be caused under comparatively mild conditions
• a method wherein electrostatic latent images are utilized A method wherein electrostatic latent images are utilized.An electrostatic latent image is formed on a photoconductive insulating layer or on an insulating layer by various known methods and the latent image is developed by using a finely pulverized enzyme as toner particles or powders. There are known many methods of forming latent images.
• the Carlson method in which an insulating layer is uniformly charged and then a latent image is formed by imageexposing or contacting the layer with a conductive electrode
• the Kalman method in which a photoconductive layer is image-exposed and then charged, (3) a method in which a photoelectromotive force is utilized
• a method in which an image is formed by heat radiation on an insulating layer before or after charging (5) a method in which an electrode on which an electric potential has been applied is brought into contact with an insulating layer under pressure, and (6) a method in which the recording surface of an insulating material is scanned by light or an electric potential in conformity with an input signal to be recorded.
• any development method which has been usually employed in the field of electrophotography may be employed to convert an electrostatic latent image into a pattern of enzyme.
• A-2 Hand writing and other methods.An enzyme image may, of course, be formed by direct writing and the like.
• Substractive method (B1) A method in which electrostatic latent images are utilized.A toner image is formed on a recording material on the surface of which an enzyme is uniformly placed, whereby the transfer of the enzyme at the portions bearing the toner image to other transferring material is prevented.
• the various methods shown in (A-1) method can be employed. An enzyme shows a very strong action even in a very small amount, and, hence, when it is incorporated in a photoconductive insulating layer, it usually has an adverse effect on the insulating layer.
• a more general method is one in which a toner image is transferred onto a recording material having a layer of an enzyme dispersed or dissolved in a suitable binder. The latter process includes a transferring step.
• a pH adjusting agent may be used as a toner for utilizing the influence of the difference in pH on the activity of enzyme.
• a material capable of checking the action of enzyme may be used as a toner.
• (B-2) Thermal copying method A recording material containing an enzyme and capable of transmitting infrared rays is superimposed on an original having an image showing a difference in absorption properties to infrared rays and is subjected to a transmittance or reflection exposure. In this way the portions of the material corresponding to the portions having infrared absorbing properties are heated to a high temperature to destroy the enzyme activity and therefore to provide an image. Further, it is possible to cause the change of the properties of the binder such that the enzyme at the heated area is inactivated. Also, if necessary, the pH of the heated areas may be varied. In practicing this method, a recording material is prepared including an enzyme in a material which reacts with the enzyme under a suitable pH. The pH of the recording material is so adjusted that the enzyme is in an inactivated state. If an image having a suitable pH is obtained by the action of heat, the material at the image portions is decomposed or denatured.
• a layer of a heat softenable material is brought into contact with a layer containing an enzyme and they are exposed to infrared rays through an image-bearing original to cause an imagewise transfer of the heat softenable material to the layer of enzyme in conformity with the image said material serving to prevent the enzymes transfer onto another transferring material similar to the aforesaid toner image.
• (B-4) Direct writing.-An image for preventing the transfer of the enzyme layer may be formed by direct writing. Of course the image may be formed by scanning.
• the patterns of the enzyme may be utilized very widely and the enzyme pattern exhibits a catalytic action. Hence, it is not substantially consumed, which makes it possible to use the enzyme image repeatedly. Thus, it may be used as a master for making many reproductions. Also, the pattern of enzyme is used as a matter for converting an image of one material into other materials.
• An enzyme image is formed by the aforesaid method and after transferring the image onto the surface of a uniform gelating layer or conducting the proteolysis of the enzyme immediately by heating and wetting, the gela tin layer is washed off by warm water to provide a relief image. Thereafter, by utilizing the relief image, color photographs or prints can be obtained by various known methods.
• the excellent point of the method of forming the relief image of gelatin by the method of this invention will become clear by comparing a typical conventional method, such as dye transfer method.
• a strong gelatin layer may be formed by using a hardening agent.
• a hardening agent such as postassium alum may be used without having any adverse influence as well as increasing the sharpness of the image.
• the process of this invention has such merit that the property capable of reproducing a continuous tone without using a halftone screen can be maintained.
• EXAMPLE 2 A mixture of parts by weight of photoconductive zinc oxide, 40 parts by weight of a low polymerization silicon resin varnish (non-volatile content 50%, xylene solvent), 10 parts by weight of polyvinyl acetate varnish (non-volatile content 50%, ethyl acetate solvent), 0.5 part by weight of proteinase (proteolytic enzyme), and a proper amount of toluene was kneaded in a porcelain mill and applied to a subbed thick paper in a dry thickness of 10 microns. After drying, the photoconductive light sensitive paper was subjected to corona discharge and then exposed to light through a negative original to form a latent image.
• a low polymerization silicon resin varnish non-volatile content 50%, xylene solvent
• polyvinyl acetate varnish non-volatile content 50%, ethyl acetate solvent
• proteinase proteolytic enzyme
• the latent image was developed by a cascade developer consisting of a toner and glass particles coated with nitrocellulose and used in a Xerox 914, an electrophotographic apparatus made by the Xerox Co. Since the toner in this combination was negatively charged, an optically negative toner image, the same as the image of the original, was obtained. The toner image was then fixed. Then, a triacetyl cellulose film bearing a hardened gelatin layer thereon and wetted with water was superposed on the toner-bearing layer under pressure. The proteinase was dissolved into water to decompose the corresponding gelatin layer, whereby a gelatin relief was formed.
• EXAMPLE 3 Proteinase and polyvinyl alcohol (5:1000) was dispersed in water and the dispersion was applied to a glass plate and dried giving a dry thickness of 5 microns.
• the light sensitive plate was image-exposed for 8 minutes to a xenon lamp of 200 watts at a distance of 20 cm. therefrom and the layer thus formed was contacted with a gelatin layer while presenting water between the two layers to conduct the decomposition reaction of gelatin by proteinase. Thereafter, by washing the gelatin layer with warm water, a relief layer was obtained.
• EXAMPLE 4 A glass plate having a gelatin layer of 8 microns in thickness was immersed in an aqueous 0.2% proteinase solution for 30 seconds and dried by cold and low-humidity blast of 3 C. By processing the gelatin layer thus sensitized by proteinase as in the aforesaid method, a relief image was obtained.
• a method of producing a relief image which comprises:
• a method of producing a relief image which comprises:
• An electrophotographic method of producing a relief image which comprises:

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Biodiversity & Conservation Biology (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Optics & Photonics (AREA)
• General Chemical & Material Sciences (AREA)
• Biomedical Technology (AREA)
• General Health & Medical Sciences (AREA)
• Molecular Biology (AREA)
• Materials Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Photoreceptors In Electrophotography (AREA)
• Manufacture Or Reproduction Of Printing Formes (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=11596474

Family Applications (1)

Country Status (4)

Families Citing this family (3)

• 1968
  • 1968-01-23 US US699780A patent/US3563733A/en not_active Expired - Lifetime
  • 1968-01-25 BE BE709856D patent/BE709856A/xx unknown
  • 1968-01-25 FR FR1564578D patent/FR1564578A/fr not_active Expired
  • 1968-01-25 GB GB4030/68A patent/GB1217087A/en not_active Expired

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