| US 7,537,329 B2 | ||
| Reaction liquid, set of ink composition and reaction liquid, and image recording method | ||
| Yasuhiro Nito, Yokohama (Japan); and Shinichi Hakamada, Kawasaki (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Dec. 07, 2005, as Appl. No. 11/295,641. | ||
| Claims priority of application No. 2004-357419 (JP), filed on Dec. 09, 2004; and application No. 2005-329629 (JP), filed on Nov. 15, 2005. | ||
| Prior Publication US 2006/0125895 A1, Jun. 15, 2006 | ||
| Int. Cl. B41J 2/17 (2006.01) | ||
| U.S. Cl. 347—96 [347/100; 523/160] | 3 Claims |
| 1. An image recording method of recording an image by applying, to a recording medium, (a) an ink composition comprising a
coloring material in a dispersed state and (b) a reaction liquid comprising (1) at least one polyvalent metal compound selected
from the group consisting of zirconium nitrate, zirconium sulfate, zirconium chloride, zirconium acetate, polyaluminum hydroxide,
and polyaluminum chloride, and (2) a divalent or trivalent metal ion or a salt thereof,
wherein the content of the at least one polyvalent metal compound selected from the group consisting of zirconium nitrate,
zirconium sulfate, zirconium chloride, zirconium acetate, polyaluminum hydroxide, and polyaluminum chloride in the reaction
liquid is 0.01 mass % or more and 30.0 mass % or less, in terms of metal atoms,
wherein the image recording method comprises the steps of:
(i) applying the ink composition to the recording medium by means of an ink-jet method; and
(ii) applying the reaction liquid to the recording medium, and
wherein the steps (i) and (ii) are performed in such a manner that the ink composition and the reaction liquid, each in a
liquid state, contact with each other on the recording medium,
wherein the ink composition further comprises a nonionic polymer
wherein the at least one polyvalent metal compound selected from the group consisting of zirconium nitrate, zirconium sulfate,
zirconium chloride, zirconium acetate, polyaluminum hydroxide, and polyaluminum chloride is zirconium acetate, and
wherein the salt of the divalent or trivalent metal ion is calcium nitrate tetrahydrate.
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