JPS6482990A - Planographic printing method - Google Patents

Planographic printing method

Info

Publication number
JPS6482990A
JPS6482990A JP24042287A JP24042287A JPS6482990A JP S6482990 A JPS6482990 A JP S6482990A JP 24042287 A JP24042287 A JP 24042287A JP 24042287 A JP24042287 A JP 24042287A JP S6482990 A JPS6482990 A JP S6482990A
Authority
JP
Japan
Prior art keywords
polymer
fine powder
dampening liquid
particle diameter
silver
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.)
Pending
Application number
JP24042287A
Other languages
Japanese (ja)
Inventor
Toshiro Kondo
Yasuo Tsubakii
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.)
Mitsubishi Paper Mills Ltd
Original Assignee
Mitsubishi Paper Mills 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 Mitsubishi Paper Mills Ltd filed Critical Mitsubishi Paper Mills Ltd
Priority to JP24042287A priority Critical patent/JPS6482990A/en
Priority to DE8888112235T priority patent/DE3865400D1/en
Priority to EP19880112235 priority patent/EP0304662B1/en
Publication of JPS6482990A publication Critical patent/JPS6482990A/en
Pending legal-status Critical Current

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  • Printing Plates And Materials Therefor (AREA)

Abstract

PURPOSE:To contrive the solution of troubles such as scumming, defective build-up of an ink and defective adhesion of transferred silver, by a method wherein a photosensitive planographic plate comprising a fine powder with a specified average particle diameter in at least one layer is made by a silver complex salt diffusion transfer process, and then printing is conducted by using a dampening liquid comprising a polymer of a specified formula. CONSTITUTION:A photosensitive planographic plate comprises a fine powder with an average particle diameter of 2-10mum in at least one of a silver halide emulsion layer, an undercoat layer and the like. The fine powder may be, for example, a fine powder of titanium oxide, zinc oxide, barium sulfate, silica, talc, Ziegelite or a starch, among which particularly preferred is slica. The amount of the fine powder is about 5-50pts.wt. based on a binder. A dampening liquid comprises a polymer of formula I, the average molecular weight of the polymer is at least 600, and Z comprises propylene oxide constituting at least 50wt.% of the polymer. The reference amount of the polymer being used is about 0.1-50g per liter of the dampening liquid.
JP24042287A 1987-08-03 1987-09-24 Planographic printing method Pending JPS6482990A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP24042287A JPS6482990A (en) 1987-09-24 1987-09-24 Planographic printing method
DE8888112235T DE3865400D1 (en) 1987-08-03 1988-07-28 DAMPING WATER SOLUTION FOR FLAT PRINTING PLATES AND APPLICATION.
EP19880112235 EP0304662B1 (en) 1987-08-03 1988-07-28 Damping solution for lithographic printing plate and method using it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24042287A JPS6482990A (en) 1987-09-24 1987-09-24 Planographic printing method

Publications (1)

Publication Number Publication Date
JPS6482990A true JPS6482990A (en) 1989-03-28

Family

ID=17059241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24042287A Pending JPS6482990A (en) 1987-08-03 1987-09-24 Planographic printing method

Country Status (1)

Country Link
JP (1) JPS6482990A (en)

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