Compositions: coating or plastic – Coating or plastic compositions – Marking
Reexamination Certificate
2006-08-29
2006-08-29
Lorengo, J. A. (Department: 1755)
Compositions: coating or plastic
Coating or plastic compositions
Marking
C106S031600, C106S031580, C106S031860, C106S031470, C106S031770, C347S100000
Reexamination Certificate
active
07097698
ABSTRACT:
In order to improve the water-resisting property of an image formed on a recording medium such as recording paper and plain paper by using an ink-jet recording ink, while also improving the light-resisting property of the image, an ink-jet recording ink, which contains a color material, water, a moisture-retaining agent, an organic silicon compound and an ultraviolet-ray absorbing agent, is allowed to contain an organic silicon compound in a range of 0.1 parts by weight to 50 parts by weight and an ultraviolet-ray absorbing agent in a range of 0.1 parts by weight to 10 parts by weight with respect to 100 parts by weight of the ink. The ultraviolet-ray absorbing agent is at least one compound selected from the group consisting of benzophenone-based, benzotriazole-based, cyanoacrylate-based and oxalic acid anilide-based compounds. Light energy of ultraviolet rays is converted to kinetic energy, heat energy and the like by the ultraviolet-ray absorbing agent at a predetermined concentration contained in the ink to prevent an amino group in the organic silicon compound from attacking an azo group in the color material due to the application of the ultraviolet rays. Alternatively, an ink-jet recording ink, which contains a color material, water, a moisture-retaining agent and an organic silicon compound, is arranged so that the organic silicon compound contains an ultraviolet-ray absorbing part, and the ultraviolet-ray absorbing part is prepared as at least one functional group selected from the group consisting of benzophenone-based, benzotriazole-based, cyanoacrylate-based and oxalic acid anilide-based functional groups. Alternatively, the ink is allowed to further contain an ultraviolet-ray absorbing agent having an acidic group.
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Arase Hidekazu
Soga Mamoru
Takasu Takuma
Faison Veronica F.
Harness & Dickey & Pierce P.L.C.
Lorengo J. A.
Matsushita Electric - Industrial Co., Ltd.
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