GB547517A - Improvements in planographic printing plates - Google Patents

Improvements in planographic printing plates

Info

Publication number
GB547517A
GB547517A GB2045/41A GB204541A GB547517A GB 547517 A GB547517 A GB 547517A GB 2045/41 A GB2045/41 A GB 2045/41A GB 204541 A GB204541 A GB 204541A GB 547517 A GB547517 A GB 547517A
Authority
GB
United Kingdom
Prior art keywords
planographic printing
colloid
coating
base
printing plates
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
GB2045/41A
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.)
WILLIAM CRAIG TOLAND TRUSTEE
Original Assignee
WILLIAM CRAIG TOLAND TRUSTEE
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 WILLIAM CRAIG TOLAND TRUSTEE filed Critical WILLIAM CRAIG TOLAND TRUSTEE
Publication of GB547517A publication Critical patent/GB547517A/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
    • B41N3/00—Preparing for use and conserving printing surfaces
    • B41N3/03—Chemical or electrical pretreatment
    • B41N3/036—Chemical or electrical pretreatment characterised by the presence of a polymeric hydrophilic coating
    • 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
    • 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
    • B41C2210/08—Developable by water or the fountain solution
    • 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

  • Printing Plates And Materials Therefor (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

547,517. Producing planographic printing. plates. DEHN, F. B. (Toland, W. C.). Feb. 14, 1941, No. 2045. [Class 98 (ii)] [Also in Group XVI] A planographic printing plate comprises a base having a coating of a hydrophilic vinyl compound with which is incorporated filler material, the non-printing areas of the coating being waterreceptive. The base may comprise metals, plastic compositions, paper, &c. The colloid is preferably a polyvinyl alcohol resin but may comprise vinyl acetates, halides, esters, ethers, ketones or alcoholates. The filler may be china clay or calcium carbonate. The water absorbtivity of the colloid may be reduced by the addition thereto of a chromic salt such as ammonium bichromate, or a copper salt such as copper chloride with, if desired, the further addition of ferric chloride or sulphate.
GB2045/41A 1941-01-11 1941-02-14 Improvements in planographic printing plates Expired GB547517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US374102A US2302816A (en) 1941-01-11 1941-01-11 Planographic printing

Publications (1)

Publication Number Publication Date
GB547517A true GB547517A (en) 1942-08-31

Family

ID=23475291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2045/41A Expired GB547517A (en) 1941-01-11 1941-02-14 Improvements in planographic printing plates

Country Status (2)

Country Link
US (1) US2302816A (en)
GB (1) GB547517A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532866A (en) * 1944-10-21 1950-12-05 Toland William Craig Method and plate for lithographic printing
BE508935A (en) * 1945-12-22
BE500047A (en) * 1948-06-28
US2733655A (en) * 1951-05-15 1956-02-07 Microscopic printing ey planographic means
BE541668A (en) * 1955-08-30
BE638066A (en) * 1958-12-18
DE4130264A1 (en) * 1991-09-12 1993-03-18 Roland Man Druckmasch FORM CYLINDERS IN AN OFFSET PRINTING MACHINE

Also Published As

Publication number Publication date
US2302816A (en) 1942-11-24

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