Title:
METHOD OF PLATE MAKING AND LITHOGRAPHIC PRINTING PLATE
Document Type and Number:
WIPO Patent Application WO/2008/007550
Kind Code:
A1
Abstract:
A method of plate making in which while utilizing the characteristics of convenience and high productivity attained by inkjet process, there are improved the plate life, resolving power and inking property having been problems of inkjet process plate making, and in which realizing high hardening sensitivity, plate making can be accomplished by a simple apparatus with the use of low-viscosity inkjet ink; and a lithographic printing plate obtained by the method. There is provided a method of plate making through the sequential procedure of applying a plate making ink onto a printing plate material according to an inkjet recording technique, irradiating the ink with actinic energy rays, evaporating the ink solvent and drying to thereby attain image forming and thus obtain a printing plate, characterized in that the plate making ink contains at least water and an actinic energy ray hardening polymeric compound of 200 to 4000 polymerization degree amounting to 0.8 to 5.0 mass% based on the total mass of the ink. The polymeric compound in its main chain has multiple side chains such that therebetween, crosslink bonding can be effected by irradiation with actinic energy rays.
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Inventors:
IIJIMA HIROTAKA (JP)
TSUBAKI YOSHINORI (JP)
TSUBAKI YOSHINORI (JP)
Application Number:
PCT/JP2007/062888
Publication Date:
January 17, 2008
Filing Date:
June 27, 2007
Export Citation:
Assignee:
KONICA MINOLTA HOLDINGS INC (JP)
IIJIMA HIROTAKA (JP)
TSUBAKI YOSHINORI (JP)
IIJIMA HIROTAKA (JP)
TSUBAKI YOSHINORI (JP)
International Classes:
B41C1/10; B41J2/01; B41M5/00; B41N1/14; C09D11/00
Foreign References:
| JPS5662157A | 1981-05-27 | |||
| JPH0469244A | 1992-03-04 | |||
| JPS63102936A | 1988-05-07 | |||
| JP2006117795A | 2006-05-11 | |||
| JPS5662157A | 1981-05-27 | |||
| JPH0469244A | 1992-03-04 | |||
| JPS63102936A | 1988-05-07 | |||
| JP2006117795A | 2006-05-11 | |||
| JPS60129742A | 1985-07-11 | |||
| JPS5667309A | 1981-06-06 | |||
| JP2000181062A | 2000-06-30 | |||
| JP2004189841A | 2004-07-08 | |||
| JP2004161942A | 2004-06-10 | |||
| US3055295A | 1962-09-25 | |||
| JPS5613168A | 1981-02-09 | |||
| JPH0980744A | 1997-03-28 | |||
| JPH08507727A | 1996-08-20 | |||
| JPS60132767A | 1985-07-15 | |||
| US6145979A | 2000-11-14 |
Other References:
See also references of EP 2042304A4
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