Dampening Fluid for Digital Lithographic Printing

(19)

(11)

EP 2 586 622 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	29.05.2013 Bulletin 2013/22

(43)	Date of publication A2:
	01.05.2013 Bulletin 2013/18

(21)	Application number: 12190034.4

(22)	Date of filing: 25.10.2012

(51)

International Patent Classification (IPC):

B41N 3/08^(2006.01)

B41M 1/06^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

(30)

Priority:

28.10.2011 US 201113284114

(71)	Applicants:
	Xerox Corporation Rochester, New York 14644 (US) Palo Alto Research Center Incorporated Palo Alto, California 94304 (US)

(72)	Inventors:
	Stowe, Timothy D. Alameda, CA 94501 (US) Peeters, Eric Mountain View, CA 94043 (US) Liu, Chu-Heng Penfield, NY 14526 (US)

(74)	Representative: Jones, Helen M.M.
	Gill Jennings & Every LLP The Broadgate Tower 20 Primrose Street London EC2A 2ES London EC2A 2ES (GB)

(54)	Dampening Fluid for Digital Lithographic Printing

(57) Different solvents for a dampening fluid are disclosed. The solvent is a volatile hydrofluoroether liquid or a volatile silicone liquid. Such liquids have a lower heat of vaporization, a lower surface tension, and better kinematic viscosity compared to water, which is the conventional solvent used in dampening fluids. The dampening fluids, which are relatively nonpolar, can be used in a combination with polar inks to form a new type of digital lithographic printing system.

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