GB1012289A - Improvements relating to lithographic printing plates - Google Patents

Improvements relating to lithographic printing plates

Info

Publication number
GB1012289A
GB1012289A GB42086/63A GB4208663A GB1012289A GB 1012289 A GB1012289 A GB 1012289A GB 42086/63 A GB42086/63 A GB 42086/63A GB 4208663 A GB4208663 A GB 4208663A GB 1012289 A GB1012289 A GB 1012289A
Authority
GB
United Kingdom
Prior art keywords
coating
latex
water
barrier layer
clay
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
GB42086/63A
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.)
Warren SD Co
Original Assignee
Warren SD Co
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 Warren SD Co filed Critical Warren SD Co
Publication of GB1012289A publication Critical patent/GB1012289A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N1/00—Printing plates or foils; Materials therefor
    • B41N1/12—Printing plates or foils; Materials therefor non-metallic other than stone, e.g. printing plates or foils comprising inorganic materials in an organic matrix
    • B41N1/14—Lithographic printing foils

Landscapes

  • Printing Methods (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Paper (AREA)

Abstract

1,012,289. Planographic printing-surfaces. S. D. WARREN CO. Oct. 24, 1963 [Nov. 5, 1962], No. 42086/63. Drawings to Specification. Heading B6C. A flexible planographic printing-plate for imaging by means of a carbon ribbon, and particularly for printing on cheques with mag. netic ink, comprises a cellulosic sheet, a pianographic coating of a pigmented water-insoluble hydrophilic polymer and an intermediate barrier layer of a heat-curable pigmented elastomeric latex-derived hydrophobic polymer. The sheet may be paper, lightly sized and coated with a composition of casein and clay with some urea formaldehyde added. For the planographic coating a polyvinyl alcohol type adhesive, e.g. a highly hydrolysed alcohol, may be used, or hydroxy-ethyl starch, carboxy-methyl cellulose, modified starches, polyacrylic acids, and carboxy-methyl-ethyl-cellulose may be employed. The pigment may be calcium carbonate and English coating clay dispersed in water. A small amount of melamine formaldehyde solution plus a water solution of zinc acetate are also incorporated in the coating. Latices based on acrylic copolymers are suitable for the barrier layer and may be cross-linked with a reactive and thermosetting resin, e.g. urea or melamine formaldehyde, to improve the resistance to water. Other substances that may be used are styrenebutadiene latex, vinylidene chloride latex and butadiene-acrylonitrile latex. The pigment in the layer may be clay. The sheet may have a layer similar to the barrier layer on its under face to prevent curling. An indentation test for the completed plate is specified. The imaging is performed by a typewriter using a film type of ribbon of polyethylene or acetate. Specification 633,747 is referred to.
GB42086/63A 1962-11-05 1963-10-24 Improvements relating to lithographic printing plates Expired GB1012289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US235480A US3160093A (en) 1962-11-05 1962-11-05 Planographic printing plate receptive to carbon ribbon imaging

Publications (1)

Publication Number Publication Date
GB1012289A true GB1012289A (en) 1965-12-08

Family

ID=22885682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42086/63A Expired GB1012289A (en) 1962-11-05 1963-10-24 Improvements relating to lithographic printing plates

Country Status (3)

Country Link
US (1) US3160093A (en)
DE (1) DE1471729A1 (en)
GB (1) GB1012289A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1171289A (en) * 1966-01-04 1969-11-19 Scott Paper Co Preparing Lithographic Masters by Photographic Gelatin Transfer
CN108786941B (en) * 2018-05-26 2020-11-27 大连大学 Preparation method of novel magnetic self-assembly three-dimensional paper chip

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534650A (en) * 1947-05-09 1950-12-19 Warren S D Co Planographic printing plate and method of making same
BE509774A (en) * 1951-03-06

Also Published As

Publication number Publication date
DE1471729A1 (en) 1969-05-29
US3160093A (en) 1964-12-08

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