Methods for ink-based digital printing using imaging member surface conditioning fluid

Patent metadata

Field	Value
Publication number	US-9233528-B2
Application number	US-201314139721-A
Country	US
Kind code	B2
Filing date	Dec 23, 2013
Priority date	Dec 23, 2013
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

An ink-based digital printing method includes applying conditioning fluid to an imaging member surface wherein the fluid is absorbed by imaging member surface, which includes VITON. Dampening fluid is subsequently applied to the imaging member surface for development by a laser imaging system to form a latent image. Ink is applied to the developed latent image on the imaging member surface to form an ink image that is transferred to paper to form a print that is free of tiger stripe image quality defects.

First claim

What is claimed is:

1. A method for ink-based digital printing system, comprising:
applying a conditioning fluid to an imaging member surface whereby the imaging member surface absorbs the conditioning fluid, the conditioning fluid comprising a hydrofluoroether liquid, the imaging member surface comprising a fluoropolymer elastomer;
applying a uniform layer of dampening fluid to the imaging member surface, the surface being impregnated with the conditioning fluid; and
inking the imaging member surface after applying the conditioning fluid.

2. The method claim 1 , the imaging member surface comprising hydrofluoroelastomers, and hybrids and blends of silicone and hydrofluoroelastomers.

3. The method of claim 1 , comprising:
developing the uniform layer of dampening fluid to form a latent image by exposing the layer to laser radiation from a laser imaging system.

4. The method of claim 1 , comprising:
transferring the ink image to a printable substrate.

5. The method of claim 4 , the printable substrate comprising paper.

6. The method claim 1 , further comprising applying the uniform layer of dampening fluid to the imaging member surface after the conditioning fluid applied to the imaging member surface is absorbed by the imaging member surface.

7. A method for ink-based digital printing system, comprising:
applying a conditioning fluid to an imaging member surface whereby the imaging member surface absorbs the conditioning fluid, the conditioning fluid comprising a hydrofluoroether liquid: and
applying a uniform layer of dampening fluid to the imagining member surface, the surface being impregnated with the conditioning fluid; and
inking the imaging member surface after applying the conditioning fluid.

8. The method of claim 7 , the imaging member surface comprising a fluoropolymer elastomer.

9. The method claim 7 , the imaging member surface comprising hydrofluoroelastomers, and hybrids and blends of silicone and hydrofluoroelastomers.

10. The method of claim 7 , comprising:
developing the uniform layer of dampening fluid to form a latent image by exposing the layer to laser radiation from a laser imaging system.

11. The method of claim 7 , comprising:
transferring the ink image to a printable substrate.

12. The method of claim 11 , the printable substrate comprising paper.

13. The method of claim 7 , the imaging member surface comprising a synthetic rubber.

14. The method claim 7 , further comprising applying the uniform layer of dampening fluid to the imaging member surface after the conditioning fluid applied to the imaging member surface is absorbed by the imaging member surface.

Assignees

• Xerox Corp

Inventors

• Liu Chu-Heng

Classifications

• B41C1/10

  for lithographic printing; Master sheets for transferring a lithographic image to the forme {(chemical or electrical pretreatment B41N3/03)}(neutralising or similar differentiation treatments of lithographic printing formes B41N3/08) · CPC title

• B41F7/24 Primary

  Damping devices · CPC title

• 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 (treatment of materials containing silver salts G03F7/063; developers per se for processing photosensitive materials G03F7/32)} · CPC title

• B41F33/0054 Primary

  Devices for controlling dampening · CPC title

• B41N2210/14

  characterised by macromolecular organic compounds · CPC title