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GB496518A - Improved process for treating lithographic plates prior to and during printing - Google Patents

Improved process for treating lithographic plates prior to and during printing

Info

Publication number
GB496518A
GB496518A GB23451/37A GB2345137A GB496518A GB 496518 A GB496518 A GB 496518A GB 23451/37 A GB23451/37 A GB 23451/37A GB 2345137 A GB2345137 A GB 2345137A GB 496518 A GB496518 A GB 496518A
Authority
GB
United Kingdom
Prior art keywords
solution
acid
printing
salt
employed
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
GB23451/37A
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.)
Harris Corp
Original Assignee
Harris Seybold Potter 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 Harris Seybold Potter Co filed Critical Harris Seybold Potter Co
Publication of GB496518A publication Critical patent/GB496518A/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
    • B41N3/08—Damping; Neutralising or similar differentiation treatments for lithographic printing formes; Gumming or finishing solutions, fountain solutions, correction or deletion fluids, or on-press development

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Abstract

496,518. Printing-surfaces; damping lithographic plates. HARRIS-SEYBOLDPOTTER CO. Aug. 26 1937, No. 23451. Convention date, June 16. [Class 100 (ii)] A solution of a substance containing a polyacrylic compound is employed in the preparation of a metal planographic plate or as a dampening fluid during printing. The compound, which must be in water-soluble or water dispersible form, may be polyacrylic acid, methyl-acrylic acid, or a salt thereof, preferably the ammonium salt. The pH value of the solution may be controlled by neutralizing, and if desired the solution can be rendered alkaline to a value of pH8. A water-soluble salt of phosphoric or chromic acid may be added when the solution is to be employed in dampening; when printing with excessively greasy inks, a mild organic acid such as gluconic acid or a mixture thereof with glucono lactones and pyruvic or levulinic acid, is added to prevent formation of scum. For treating the plate preparatory to printing, a solution of from 2-5 per cent by weight can be used and for dampening a solution of À04-À10 per cent is employed ; an approximately equal amount of organic acid or one-tenth of the amount of a salt of phosphoric or chromic acid may be added.
GB23451/37A 1937-06-16 1937-08-26 Improved process for treating lithographic plates prior to and during printing Expired GB496518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US148564A US2186945A (en) 1937-06-16 1937-06-16 Preparing lithographic plates for printing

Publications (1)

Publication Number Publication Date
GB496518A true GB496518A (en) 1938-12-01

Family

ID=22526314

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23451/37A Expired GB496518A (en) 1937-06-16 1937-08-26 Improved process for treating lithographic plates prior to and during printing

Country Status (4)

Country Link
US (1) US2186945A (en)
DE (1) DE747690C (en)
FR (1) FR825707A (en)
GB (1) GB496518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208521A (en) * 1963-08-09 1965-09-28 Exxon Production Research Co Recompletion of wells

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756661C (en) * 1939-08-03 1952-06-23 Fritz Hermann Hausleiter Lithographic etch for metal flat printing forms
DE856154C (en) * 1942-08-18 1952-11-20 Boehme Fettchemie G M B H Preparations for treating the damp spots on planographic printing forms
US2681310A (en) * 1949-10-25 1954-06-15 Harris Seybold Co Treating aluminum surfaces
BE536594A (en) * 1954-03-18
US2951441A (en) * 1956-01-16 1960-09-06 Timefax Corp Lithographic printing plates and coatings therefor
US2936241A (en) * 1957-05-16 1960-05-10 Sperry Rand Corp Non-printing indicia ink
US2991204A (en) * 1957-06-19 1961-07-04 Harris Intertype Corp Hydrophilic surface
DE1116687B (en) * 1958-01-24 1961-11-09 Wilhelm Ritzerfeld Process for the production of lithographic printing forms
NL242151A (en) * 1958-08-08
US3064562A (en) * 1959-01-12 1962-11-20 Lithoplate Inc Acrylic acid monomer coatings for metal bases
NL252749A (en) * 1959-06-18
NL273558A (en) * 1961-01-25
NL287211A (en) * 1962-01-11
DE1421385B2 (en) * 1962-08-01 1972-04-13 Litho Chemical and Supply Co., Inc., Lynbrook, L.I., N.Y. (V.St.A.) PROCESS FOR THE PRODUCTION OF A HYDROPHILIC INTERLAY IN LITHOGRAPHIC FLAT PRINTED PLATES, BETWEEN CARRIER AND COPY LAYER
US3272121A (en) * 1963-02-14 1966-09-13 Plastic Coating Corp Lithographic printing plate prepared by photoelectrostatic reproduction, a method for its production and a method for lithographic printing
NL7606078A (en) * 1975-06-12 1976-12-14 Dow Chemical Co PROCEDURE FOR PREPARING A WETTING SOLUTION FOR LITHOGRAPHIC PRESSURES.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208521A (en) * 1963-08-09 1965-09-28 Exxon Production Research Co Recompletion of wells

Also Published As

Publication number Publication date
US2186945A (en) 1940-01-16
DE747690C (en) 1944-10-11
FR825707A (en) 1938-03-11

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