GB1265322A - - Google Patents

Info

Publication number
GB1265322A
GB1265322A GB1945768A GB1265322DA GB1265322A GB 1265322 A GB1265322 A GB 1265322A GB 1945768 A GB1945768 A GB 1945768A GB 1265322D A GB1265322D A GB 1265322DA GB 1265322 A GB1265322 A GB 1265322A
Authority
GB
United Kingdom
Prior art keywords
particles
layer
permeable
areas
give
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
Application number
GB1945768A
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 filed Critical
Publication of GB1265322A publication Critical patent/GB1265322A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B41M5/36—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties
    • B41M5/366—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using a polymeric layer, which may be particulate and which is deformed or structurally changed with modification of its' properties, e.g. of its' optical hydrophobic-hydrophilic, solubility or permeability properties using materials comprising a polymeric matrix containing a polymeric particulate material, e.g. hydrophobic heat coalescing particles
    • 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
    • G03C1/705—Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances, e.g. photodope systems
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1008—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
    • B41C1/1025—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials using materials comprising a polymeric matrix containing a polymeric particulate material, e.g. hydrophobic heat coalescing particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2201/00—Location, type or constituents of the non-imaging layers in lithographic printing formes
    • B41C2201/04—Intermediate layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2201/00—Location, type or constituents of the non-imaging layers in lithographic printing formes
    • B41C2201/14—Location, type or constituents of the non-imaging layers in lithographic printing formes characterised by macromolecular organic compounds, e.g. binder, adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/04—Negative working, i.e. the non-exposed (non-imaged) areas are removed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/20—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by inorganic additives, e.g. pigments, salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/22—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by organic non-macromolecular additives, e.g. dyes, UV-absorbers, plasticisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/24—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by a macromolecular compound or binder obtained by reactions involving carbon-to-carbon unsaturated bonds, e.g. acrylics, vinyl polymers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

1,265,322. Photoconductive recording element. AGFA GEVAERT. 24 April, 1969 [24 April, 1968; 12 Nov., 1968 (3)], No. 19457/68. Heading H1K. [Also in Division G2] A recording element comprises at least one water permeable recording layer, the waterpermeability of which can be reduced by exposure to electromagnetic radiation without rise in temperature, the layer comprising photoconductive particles and hydrophobic particles dispersed in a continuous hydrophilic binder phase. On exposure to radiation, the change in conductivity in the image areas produces coagulation of the dispersed particles and in consequence reduces the water-permeability of those areas. The areas of different permeability may be used in various ways to give a visible copy or a printing master: (a) dye or a colour catalyst may be diffused into the permeable areas to give either positive or negative images, (b) an etchant may be used on the recording layer or a support beneath to give a planographic or intaglio printing master, (c) dye or colour catalyst may diffuse imagewise from the element to a receiving sheet, (d) the permeable parts may be washed away to give a direct visible copy or a gravure master, (e) a stencil or screen-printing master may be made by coating one or both sides of a screen material, e.g. Japan paper, nylon fabric or woven bronze wire, with the recording layer and after imagewise exposure washing away the permeable areas of the layer, (f) the permeable portions of the image may be transferred to a hydrophilic and/or porous surface, e.g. a paper by squeezing the exposed element against the surface, (g) the converse of process (f) is possible and yields a hectographic master if the transferred materials contains appropriate dyes. In the specific embodiments, a support is provided of polyethylene terephthalate which may be coated with a mixture of urea-formaldehyde resin and silica, paper coated with polythene or cellulose triacetate. The support is coated with at least one subbing layer comprising an aqueous alcoholic solution of copoly vinylidene chloride N - t - butyl acrylamideitaconic acid or copoly butadiene-methyl methacrylate and polyethylene particles together with silica, gelatine, saponin, polyethylene glycol or the sodium salt of the condensation product of oleic acid and methyl taurine. Formaldehyde may be added to assist hardening of the polymeric layer. The photo-conductive particles may be ZnO or PbO + Bi whilst the hydrophobic particles are a dispersion of polyethylene or polymethyl methacrylate. Gelatine or polyvinyl pyrolidone are used as the hydrophilic phase. Additives to the recording layer are colloidal Ag or C, dye mixtures, Na hexametaphosphate, dibutylphthalate, paraffin oil, carnauba wax, isonoylphenyl decaethoxanol or n-hexadecyloxydecaoxethylene. Many other supports, photo-conductors, hydrophobic particles and hydrophilic binders are specified.
GB1945768A 1968-04-24 1968-04-24 Expired GB1265322A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB1945768 1968-04-24
GB5367568 1968-11-12
GB5367468 1968-11-12
GB5367668 1968-11-12

Publications (1)

Publication Number Publication Date
GB1265322A true GB1265322A (en) 1972-03-01

Family

ID=27448454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1945768A Expired GB1265322A (en) 1968-04-24 1968-04-24

Country Status (9)

Country Link
US (1) US3642480A (en)
JP (1) JPS4813061B1 (en)
AT (1) AT290987B (en)
BE (1) BE731984A (en)
CH (1) CH547509A (en)
DE (1) DE1920360A1 (en)
FR (1) FR2006847A1 (en)
GB (1) GB1265322A (en)
NL (1) NL6906249A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3864128A (en) * 1967-09-28 1975-02-04 Agfa Gevaert Electrophotographic sheet material employing a hydrophobic film support and hydrophilic layer
BE786207A (en) * 1971-07-20 1973-01-15 Agfa Gevaert Nv ELEKTROFOTOGRAFISCH REGISTREERMATERIAAL
JPS5623152B2 (en) * 1972-03-03 1981-05-29
GB1441105A (en) * 1972-09-22 1976-06-30 Agfa Gevaert Electrophotographic recording material
US4123271A (en) * 1974-01-22 1978-10-31 Mita Industrial Company, Limited Alkali metal dichromate as memory resistance improver for zinc oxide photoconductors in electrostatic photography
JPS52154627A (en) * 1976-06-18 1977-12-22 Fuji Photo Film Co Ltd Silver halide light sensitive material
JPS52154626A (en) * 1976-06-18 1977-12-22 Fuji Photo Film Co Ltd Silver halide light sensitive material
JP2694097B2 (en) * 1992-03-03 1997-12-24 インターナショナル・ビジネス・マシーンズ・コーポレイション Antireflection coating composition
DE4311888A1 (en) * 1993-04-10 1994-10-13 Du Pont Deutschland Silver halide light-sensitive material with reduced sensitivity to pressure
US5536628A (en) * 1994-12-08 1996-07-16 Eastman Kodak Company Aqueous coating compositions containing dye-impregnated polymers
US6528237B1 (en) * 1997-12-09 2003-03-04 Agfa-Gevaert Heat sensitive non-ablatable wasteless imaging element for providing a lithographic printing plate with a difference in dye density between the image and non image areas
JP2001281856A (en) * 2000-01-24 2001-10-10 Fuji Photo Film Co Ltd Infrared ray(ir) sensitive image forming material
US20060040137A1 (en) * 2004-08-17 2006-02-23 Tdk Corporation Organic el device, method of manufacturing the same, and organic el display
US9566569B2 (en) * 2015-05-11 2017-02-14 Eastman Kodak Company Metal catalytic compositions and articles therefrom

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133498A (en) * 1962-03-14 1964-05-19 Rca Corp Method of preparing lithographic printing plates
BE638612A (en) * 1962-10-16
FR1424008A (en) * 1963-12-05 1966-01-07 Gevaert Photo Prod Nv Method of recording information using heat and pressure sensitive material
DE1572060C3 (en) * 1966-01-07 1974-10-24 Kalle Ag, 6202 Wiesbaden-Biebrich Photosensitive copy layer
GB1184054A (en) * 1966-04-05 1970-03-11 Agfa Gevaert Nv Thermographic Recording Processes and Materials

Also Published As

Publication number Publication date
FR2006847A1 (en) 1970-01-02
DE1920360A1 (en) 1969-11-20
BE731984A (en) 1969-10-24
US3642480A (en) 1972-02-15
JPS4813061B1 (en) 1973-04-25
AT290987B (en) 1971-06-25
CH547509A (en) 1974-03-29
NL6906249A (en) 1969-09-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees