| US 7,579,390 B2 | ||
| Inkjet ink composition and printed matters created using inkjet ink composition | ||
| Toru Ushirogouchi, Yokohama (Japan); Kazuhiko Ohtsu, Mishima (Japan); Mitsuru Ishibashi, Yokohama (Japan); Ryozo Akiyama, Mishima (Japan); and Masahi Hiroki, Yokohama (Japan) | ||
| Assigned to Toshiba Tec Kabushiki Kaisha, (Japan) | ||
| Filed on Mar. 08, 2005, as Appl. No. 11/75,183. | ||
| Claims priority of application No. 2004-222190 (JP), filed on Jul. 29, 2004. | ||
| Prior Publication US 2006/0025497 A1, Feb. 02, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C09D 11/00 (2006.01); B41J 2/01 (2006.01); G01D 11/00 (2006.01); B05D 1/32 (2006.01); B05D 3/06 (2006.01); C08F 2/48 (2006.01); C08F 2/50 (2006.01); C08J 7/04 (2006.01); C08J 3/28 (2006.01); C08G 59/68 (2006.01); A61L 27/34 (2006.01); B29C 71/04 (2006.01); C08F 2/46 (2006.01); C08G 59/14 (2006.01); C08G 65/18 (2006.01) | ||
| U.S. Cl. 523—160 [427/466; 427/508; 427/511; 427/517; 427/558; 347/1; 347/100; 347/102; 522/6; 522/31; 522/49; 522/64; 522/100; 522/168; 523/161] | 11 Claims |
| 1. An inkjet ink composition comprising:
a pigment component having a resin comprising a basic terminal adsorbed thereto, the basic terminal having a basicity of not
more than 4 pKb, the pigment component having an average particle diameter of 200 nm or less, the resin being selected from
the group consisting of vinyl polymer or copolymer, acrylic polymer or copolymer, polyester, polyamide, polyimide, polyurethane,
silicon-containing polymer, sulfur-containing polymer, fluorine-containing polymer and epoxy resin;
a photo-acid generating agent containing an onium salt selected from the group consisting of aryl sulfonium fluorophosphate
and aryl iodonium fluorophosphates, each consisting of a monovalent salt and a multivalent salt; and
at least one kind of solvent which can be polymerized under the presence of an acid;
wherein the content of the multivalent salt included in the onium salt is not more than 20% by weight based on a total weight
of onium salt; and
wherein the content of the pigment component is confined within the range of 3 to 41% by weight based on the ink composition.
|