GB1286639A - Lithoplate master and method of making - Google Patents

Lithoplate master and method of making

Info

Publication number
GB1286639A
GB1286639A GB46116/69A GB4611669A GB1286639A GB 1286639 A GB1286639 A GB 1286639A GB 46116/69 A GB46116/69 A GB 46116/69A GB 4611669 A GB4611669 A GB 4611669A GB 1286639 A GB1286639 A GB 1286639A
Authority
GB
United Kingdom
Prior art keywords
naphthol
master
sheet
prepared
lithomaster
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
GB46116/69A
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of GB1286639A publication Critical patent/GB1286639A/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
    • B41C1/1091—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by physical transfer from a donor sheet having an uniform coating of lithographic material using thermal means as provided by a thermal head or a laser; by mechanical pressure, e.g. from a typewriter by electrical recording ribbon therefor
    • 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
    • G03F7/26—Processing photosensitive materials; Apparatus therefor

Abstract

1286639 Lithographic printing plates MINNESOTA MINING & MFG CO 18 Sept 1969 [19 Sept 1968] 46116/69 Heading G2C [Also in Division B6] Lithographic printing plates are prepared from a lithoplate master having a hydrophilic printing layer containing at its surface an ionic iodide, by applying an imagewise distribution of an α-naphthol to the master and heating the master in at least the areas to which the naphthol is applied. The α-naphthol is ring-substituted by a preponderance of electron donor groups. The plate may be formed by (1) reflex exposing to an original a sheet containing erythrosin (sensitizer), 4-methoxy- 1-naphthol in a polymeric binder using an incandesent source, so that the exposed areas are desensitized, contacting the sheet with a lithoplate master and heating giving a blue hydrophobic image, (2) passing a sheet containing 4-methoxy- 1-naphthol in a cellulose acetate/butyrate binder containing diphenylphthalate through an ir. copier together with a lithomaster and a printed document, or (3) printing and writing on a sheet as in (2) and passing the sheet through an ir. copier together with a lithomaster. The lithomaster in (1) is prepared by applying aqueous K1 to the hydrophilic surface of a paper base, that of (2) is prepared by coating a paper base with an aqueous mixture of polyvinyl alcohol, kaolin, glycerine, dimethylolurea, K1 and butanol; and that of (3) is prepared by coating a paper base with (i) an aqueous mixture of polyvinyl alcohol, clay, glycerine, glyoxal and butanol, and then (ii) an aqueous solution of N(C 2 H 5 ) 4 1.
GB46116/69A 1968-09-19 1969-09-18 Lithoplate master and method of making Expired GB1286639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77335868A 1968-09-19 1968-09-19

Publications (1)

Publication Number Publication Date
GB1286639A true GB1286639A (en) 1972-08-23

Family

ID=25097995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46116/69A Expired GB1286639A (en) 1968-09-19 1969-09-18 Lithoplate master and method of making

Country Status (6)

Country Link
US (1) US3559578A (en)
BR (1) BR6912521D0 (en)
DE (1) DE1948078B2 (en)
FR (1) FR2018403A1 (en)
GB (1) GB1286639A (en)
SE (1) SE372352B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6261740B1 (en) * 1997-09-02 2001-07-17 Kodak Polychrome Graphics, Llc Processless, laser imageable lithographic printing plate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE608654A (en) * 1960-09-28
NL273128A (en) * 1961-01-03
NL273129A (en) * 1961-01-03 1900-01-01
US3299807A (en) * 1963-10-22 1967-01-24 Minnesota Mining & Mfg Direct imaging of offset plates

Also Published As

Publication number Publication date
US3559578A (en) 1971-02-02
BR6912521D0 (en) 1973-05-03
SE372352B (en) 1974-12-16
DE1948078A1 (en) 1970-10-01
FR2018403A1 (en) 1970-05-29
DE1948078B2 (en) 1972-12-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees