Application of clear overcoat fluid
First Claim
1. A method of applying a fixer fluid overcoat to a porous or semi-porous medium provided with an alumina-based or silica-based coating and printed in an ink jet printer, said method comprising:
- (a) providing at least one ink including at least one colorant and contained in at least one ink-printing pen maintained within said ink jet printer;
(b) providing said fixer fluid in a fixer fluid pen maintained within said ink jet printer, wherein said fixer fluid comprises at least one organic acid and, optionally, a salt of at least one polymeric acid;
(c) printing said at least one ink on said print medium; and
(d) overprinting said at least one ink with said fixer fluid by advancing said print medium a few dot rows per print swath and either (i) applying said fixer fluid to said at least one ink on an Nth pass where said fixer fluid pen trails said at least one ink-printing pen, or (ii) printing an additional swath without an advance of said print medium with said fixer fluid where said fixer fluid pen leads said at least one ink-printing pen.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of applying a fixer fluid overcoat to a porous or semi-porous medium printed in an ink jet printer is provided. The method includes: (a) providing at least one ink including a colorant and contained in at least one ink-printing pen maintained within the ink jet printer; (b) providing the fixer fluid in a fixer fluid pen maintained within the ink jet printer; (c) printing the ink(s) on the print medium; and (d) overprinting the ink(s) with the fixer fluid by advancing the print medium a few dot rows per print swath and either (i) applying the fixer fluid to the ink(s) on an Nth pass where the fixer fluid pen trails the ink-printing pen(s), or (ii) printing an additional swath without an advance of the print medium with the fixer fluid where the fixer fluid pen leads the ink-printing pen(s).
-
Citations
22 Claims
-
1. A method of applying a fixer fluid overcoat to a porous or semi-porous medium provided with an alumina-based or silica-based coating and printed in an ink jet printer, said method comprising:
-
(a) providing at least one ink including at least one colorant and contained in at least one ink-printing pen maintained within said ink jet printer;
(b) providing said fixer fluid in a fixer fluid pen maintained within said ink jet printer, wherein said fixer fluid comprises at least one organic acid and, optionally, a salt of at least one polymeric acid;
(c) printing said at least one ink on said print medium; and
(d) overprinting said at least one ink with said fixer fluid by advancing said print medium a few dot rows per print swath and either (i) applying said fixer fluid to said at least one ink on an Nth pass where said fixer fluid pen trails said at least one ink-printing pen, or (ii) printing an additional swath without an advance of said print medium with said fixer fluid where said fixer fluid pen leads said at least one ink-printing pen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of improving wet-rub durability, smearfastness, and waterfastness of ink jet inks printed on coated porous or semi-porous print media, wherein the coating is an alumina-based or silica-based coating, said method comprising:
-
(a) providing at least one ink including at least one colorant and contained in at least one ink-printing pen maintained within an ink jet printer;
(b) providing a fixer fluid in a fixer fluid pen maintained within said ink jet printer, wherein said fixer fluid comprises at least one organic acid and, optionally, a salt of at least one polymeric acid;
(c) printing said at least one ink on said print medium; and
(d) overprinting said at least one ink with said fixer fluid by advancing said print medium a few dot rows per print swath and either (i) applying said fixer fluid to said at least one ink on an Nth pass where said fixer fluid pen trails said at least one ink-printing pen, or (ii) printing an additional swath without an advance of said print medium with said fixer fluid where said fixer fluid pen leads said at least one ink-printing pen. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification