IP Library Granted Patent US 6,923,533
Granted Patent B2
US 6,923,533 · App. 10/316,234 · Granted Aug 2, 2005

Phase change ink imaging component with nano-size filler

Assignee: Xerox Corporation
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Quick Facts
Patent No.
US 6,923,533
App. No.
10/316,234
Granted
Aug 2, 2005
Kind
B2
Abstract

An offset printing apparatus having a coated imaging member for use with phase-change inks, has a substrate, an optional intermediate layer, and thereover an outer coating with a nano-size filler having an average particle size of from about 1 to about 250 nanometers, and an optional heating member associated with the offset printing apparatus.

Claims (43)

1. An offset printing apparatus for transferring a phase change ink onto a print medium comprising:

a) a phase change ink component for applying a phase change ink in a phase change ink image; and

b) an imaging member for accepting the phase change ink image from the phase change ink component, and transferring the phase change ink image from the imaging member to the print medium, the imaging member comprising:

i) an imaging substrate, and thereover

ii) an outer coating comprising a fluoroelastomer selected from the group consisting of 1) copolymers of vinylidenefluoride, hexafluoropropylene, and tetrafluoroethylene, 2) terpolymers of vinylidenefluoride, hexafluoropropylene and tetrafluoroethylene, and 3) tetrapolymers of vinylidenefluoride, hexafluoropropylene, tetrafluoroethylene, and a cure site monomer, and a nano-size filler having an average particle size of from about 1 to about 250 nanometers.

2. The offset printing apparatus of claim 1 , wherein said average particle size is from about 5 to about 150 nanometers.

3. The offset printing apparatus of claim 2 , wherein said average particle size is from about 10 to about 100 nanometers.

4. The offset printing apparatus of claim 1 , wherein said nano-size filler is selected from the group consisting of metals, metal oxides, carbon blacks, polymers, and mixtures thereof.

5. The offset printing apparatus of claim 4 , wherein said metal oxide is selected from the group consisting of silicon oxide, aluminum oxide, chromium oxide, zirconium oxide, zinc oxide, tin oxide, iron oxide, magnesium oxide, manganese oxide, nickel oxide, copper oxide, antimony pentoxide, indium tin oxide, and mixtures thereof.

6. The offset printing apparatus of claim 4 , wherein said metal oxide is a sol-gel metal oxide.

7. The offset printing apparatus of claim 6 , wherein said sol-gel metal oxide is selected from the group consisting of a hydrolyzed metal alkoxide and a hydrolyzed metal aryloxide.

8. The offset printing apparatus of claim 7 , wherein said sol-gel metal oxide is selected from the group consisting of tetraalkoxy orthosilicate, titanium isobutoxide, and mixtures thereof.

9. The offset printing apparatus of claim 4 , wherein said polymer is selected from the group consisting of polytetrafluoroethylene, polyimide, polyphenylene sulfide, poly (ether ether ketone), and mixtures thereof.

10. The offset printing apparatus of claim 1 , wherein the fluoroelastomer comprises of 35 weight percent of vinylidenefluoride, 34 weight percent of hexafluoropropylene, 29 weight percent of tetrafluoroethylene, and 2 weight percent cure site monomer.

11. The offset printing apparatus of claim 1 , wherein an intermediate layer is positioned between the substrate and the outer coating.

12. The offset printing apparatus of claim 11 , wherein the intermediate layer comprises a material selected from the group consisting of elastomers and silicone materials.

13. The offset printing apparatus of claim 12 , wherein the intermediate layer comprises a silicone rubber.

14. The offset printing apparatus of claim 1 , wherein the phase change ink is solid at about 25° C.

15. The offset printing apparatus of claim 1 , wherein the phase change ink comprises a dye.

16. The offset printing apparatus of claim 1 , wherein said phase change ink comprises a pigment.

17. The offset printing apparatus of claim 1 , wherein said phase change ink is a gel-based ink.

18. The offset printing apparatus of claim 1 , wherein said phase change ink is an ultraviolet curable ink.

19. The offset printing apparatus of claim 1 , wherein said average particle size is from about 20 to about 50 nanometers.

20. An offset printing apparatus for transferring a phase change ink onto a print medium comprising:

a) a phase change ink component for applying a phase change ink in a phase change ink image; and

b) an imaging member for accepting the phase change ink image from the phase change ink component, and transferring the phase change ink image from the imaging member to the print medium, the imaging member comprising:

i) an imaging substrate, and thereover

ii) an intermediate layer comprising a material selected from the group consisting of elastomers and silicone materials, and having thereon

iii) an outer coating comprising a fluoroelastomer selected from the group consisting of 1) copolymers of vinylidenefluoride, hexafluoropropylene, and tetrafluoroethylene, 2) terpolymers of vinylidenefluoride, hexafluoropropylene and tetrafluoroethylene, and 3) tetrapolymers of vinylidenefluoride, hexafluoropropylene, tetrafluoroethylene, and a cure site monomer, and a nano-size filler having an average particle size of from about 1 to about 250 nanometers.

21. The offset printing apparatus of claim 20 wherein said intermediate layer comprises a silicone rubber.

22. An offset printing apparatus for printing a phase change ink onto a print medium comprising:

a) a phase change ink component for applying a phase change ink in a phase change ink image;

b) an imaging member for accepting the phase change ink image from the phase change ink component, and transferring the phase change ink image from the imaging member to the print medium and for fixing the phase change ink image to the print medium, the imaging member comprising in order:

i) an imaging substrate,

ii) an intermediate layer, and

iii) an outer coating comprising a fluoroelastomer selected from the group consisting of 1) copolymers of vinylidenefluoride, hexafluoropropylene, and tetrafluoroethylene, 2) terpolymers of vinylidenefluoride, hexafluoropropylene and tetrafluoroethylene, and 3) tetrapolymers of vinylidenefluoride, hexafluoropropylene, tetrafluoroethylene, and a cure site monomer, and a nano-size filler having an average particle size of from about 1 to about 250 nanometers; and

c) a heating member associated with the offset printing apparatus.

23. An offset printing apparatus comprising:

a) a phase change ink component containing a phase change ink;

b) a imaging member comprising:

i) a substrate, and thereover

ii) an outer coating comprising a fluoroelastomer selected from the group consisting of 1) copolymers of vinylidenefluoride, hexafluoropropylene, and tetrafluoroethylene, 2) terpolymers of vinylidenefluoride, hexafluoropropylene and tetrafluoroethylene, 3) tetrapolymers of vinylidenefluoride, hexafluoropropylene, tetrafluoroethylene, and a cure site monomer, and a nano-size filler having an average particle size of from about 1 to about 250 nanometers; and

c) a heating member associated with the offset printing apparatus, wherein the phase change ink component dispenses the phase change ink onto the imaging member, and wherein the phase change ink is solid at about 25° C.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Sep 7, 2022
From: JPMORGAN CHASE BANK, N.A. AS SUCCESSOR-IN-INTEREST ADMINISTRATIVE AGENT AND COLLATERAL AGENT TO JPMORGAN CHASE BANK
To: XEROX CORPORATION
Reel/Frame 066728/0193 →
SECURITY AGREEMENT Recorded Oct 31, 2003
From: XEROX CORPORATION
To: JPMORGAN CHASE BANK, AS COLLATERAL AGENT
Reel/Frame 015134/0476 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 9, 2002
From: PAN, DAVID H.; BADESHA, SANTOKH S.
To: XEROX CORPORATION
Reel/Frame 013572/0123 →
Continuity (1)
Related Publication 20040109055A1 · Jun 10, 2004