GB767074A - Electrically inscribable lithographic offset printing plate - Google Patents

Electrically inscribable lithographic offset printing plate

Info

Publication number
GB767074A
GB767074A GB7231/55A GB723155A GB767074A GB 767074 A GB767074 A GB 767074A GB 7231/55 A GB7231/55 A GB 7231/55A GB 723155 A GB723155 A GB 723155A GB 767074 A GB767074 A GB 767074A
Authority
GB
United Kingdom
Prior art keywords
binder
water
carbon
ink
layer
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
GB7231/55A
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.)
Creed and Co Ltd
Original Assignee
Creed and Co Ltd
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 Creed and Co Ltd filed Critical Creed and Co Ltd
Publication of GB767074A publication Critical patent/GB767074A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B41C1/1033—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 by laser or spark ablation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/23—Reproducing arrangements

Abstract

767,074. Coated fabrics. CREED & CO., Ltd. March 11, 1955 [March 18, 1954], No. 7231/55. Class 140. [Also in Group XVI] An electrically inscribable lithographic offset printing plate comprises a base sheet 10 having thereon an adherent conductive ink-receptive layer 11 formed by evaporation of water from a uniform dispersion of finely-divided conductive carbon in a latex of at least one binder of the class consisting of resins and elastomers and which upon drying becomes substantially water-insoluble and ink-receptive, the binder being present in an amount which is at least equal to the amount of carbon by weight and having the property of binding the carbon particles to the sheet 10 without substantially interfering with the conductivity of the layer 11. The layer 11 is provided with a thin adherent coating 12 of such character as to be disintegrated in elemental areas thereof when subjected to electrical marking currents to expose the underlying ink-receptive carbon layer, the coating 12 comprising a pigment dispersed in a hydrophilic water-insoluble binder for receiving an ink-repellent solution. The base sheet 10 may be of non-conductive paper, fabric or plastic and the ratio by weight of binder to carbon is from 1: 1 to 2: 1. The binder may consist of acrylic resin, styrenated butadiene, polystyrene, neoprene, acrylonitrile-butadiene, polyvinyl acetate, polyvinyl chloride and natural rubber. The surface coating 12 is formed by evaporation of the water from an aqueous solution of a water-soluble binder, e.g. polyvinyl alcohol, carboxymethyl cellulose, casein, gum arabic and albumen, which is insolubilized. Mixtures of cuprous thiocyanate, zinc sulphide and/or zinc oxide are preferably employed as pigments, in the ratio of three parts of pigment to. one part binder. The thicknesses of the base 10 and layers 11 and 12 are of the order of 2.5-3 mils., 0.8-1.2 mils 0.7-1.25 mils. respectively.
GB7231/55A 1954-03-18 1955-03-11 Electrically inscribable lithographic offset printing plate Expired GB767074A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US417096A US3220345A (en) 1954-03-18 1954-03-18 Electrically inscribable lithographic offset printing plate

Publications (1)

Publication Number Publication Date
GB767074A true GB767074A (en) 1957-01-30

Family

ID=23652565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7231/55A Expired GB767074A (en) 1954-03-18 1955-03-11 Electrically inscribable lithographic offset printing plate

Country Status (6)

Country Link
US (1) US3220345A (en)
BE (1) BE536594A (en)
CH (1) CH339935A (en)
DE (1) DE1014128B (en)
FR (1) FR1133823A (en)
GB (1) GB767074A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3151549A (en) * 1959-02-11 1964-10-06 Warren S D Co Electrically inscribable lithographic masters
DE1201373B (en) * 1955-03-16 1965-09-23 Timefax Corp Electrically writable lithographic planographic printing plate
EP2618215A1 (en) 2004-05-31 2013-07-24 Fujifilm Corporation Method for producing a lithographic printing plate

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132584A (en) * 1954-07-26 1964-05-12 Timefax Corp Planographic master-forming blank and method of manufacture thereof
NL258810A (en) * 1959-12-14
DE1206926B (en) * 1960-05-10 1965-12-16 Timefax Corp Electrically recordable planographic printing plate and method of making the same
US3298831A (en) * 1963-07-02 1967-01-17 Cons Papers Inc Paper laminates for electrostatic printing support members
US3505263A (en) * 1965-04-08 1970-04-07 Dow Chemical Co Resin bonded semiconducting compositions of calcined petroleum coke
US3920873A (en) * 1973-11-09 1975-11-18 Arthur D Diamond Electrosensitive recording media
US4729310A (en) * 1982-08-09 1988-03-08 Milliken Research Corporation Printing method
US4718340A (en) * 1982-08-09 1988-01-12 Milliken Research Corporation Printing method
US20090064884A1 (en) 2007-08-20 2009-03-12 Hook Kevin J Nanoparticle-based compositions compatible with jet printing and methods therefor
US9701120B2 (en) 2007-08-20 2017-07-11 R.R. Donnelley & Sons Company Compositions compatible with jet printing and methods therefor
US10427290B2 (en) 2017-07-18 2019-10-01 General Electric Company Crawler robot for in situ gap inspection

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE550575C (en) * 1927-05-25 1932-05-12 Karl Schinzel Dr Process for the production of printing forms by tanning in writing or image, tanning or destroying colloid layers by electrochemical means
US2186945A (en) * 1937-06-16 1940-01-16 Harris Seybold Potter Co Preparing lithographic plates for printing
US2555321A (en) * 1941-08-08 1951-06-05 Western Union Telegraph Co Facsimile recording paper
US2534650A (en) * 1947-05-09 1950-12-19 Warren S D Co Planographic printing plate and method of making same
US2562782A (en) * 1947-12-29 1951-07-31 Warren S D Co Water-repellent ink transfer surface
US2664044A (en) * 1948-01-16 1953-12-29 Timefax Corp Electric signal recording blank
US2693145A (en) * 1948-03-09 1954-11-02 Dick Co Ab Lithographic printing plate and method of making
US2713822A (en) * 1948-12-20 1955-07-26 Columbia Ribbon & Carbon Planographic printing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1201373B (en) * 1955-03-16 1965-09-23 Timefax Corp Electrically writable lithographic planographic printing plate
US3151549A (en) * 1959-02-11 1964-10-06 Warren S D Co Electrically inscribable lithographic masters
EP2618215A1 (en) 2004-05-31 2013-07-24 Fujifilm Corporation Method for producing a lithographic printing plate

Also Published As

Publication number Publication date
FR1133823A (en) 1957-04-02
CH339935A (en) 1959-07-31
DE1014128B (en) 1957-08-22
US3220345A (en) 1965-11-30
BE536594A (en)

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