Yellow ink composition for inkjet recording, and inkjet recording method and inkjet recorded material

US9102841B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9102841-B2
Application numberUS-201313940623-A
CountryUS
Kind codeB2
Filing dateJul 12, 2013
Priority dateAug 29, 2012
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A yellow ink composition includes a particulate pigment; a dispersant; a water-soluble solvent; and water, wherein the ink composition satisfies the following relationship: 0.02≦ Y/X ≦0.07  (1) wherein X represents a maximum absorbance of the ink composition at a wavelength of from 400 to 450 nm; and Y represents an absorbance thereof at a wavelength of 500 nm.

First claim

Opening claim text (preview).

What is claimed is: 1. A yellow ink composition, comprising: a particulate pigment; a dispersant; a water-soluble solvent; and water, wherein the dispersant has the following formula (2): A 1 -O—B 1   (2) wherein A 1 represents a branchable alkyl group having 8 to 12 carbon atoms, a β naphthyl group, a styrenated phenol group or a distyrenated phenol group; B 1 represents COOM 1 , SO 3 M 1 or PO 3 M 1 2 ; and M 1 represents Na, K, ammonium, tetramethylammoniu…

Assignees

Inventors

Classifications

  • Cross-Sectional Technologies · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • C09D11/36Primary

    Chemistry & Metallurgy · mapped topic

  • C09D11/322Primary

    Chemistry & Metallurgy · mapped topic

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Frequently asked questions

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What does patent US9102841B2 cover?
A yellow ink composition includes a particulate pigment; a dispersant; a water-soluble solvent; and water, wherein the ink composition satisfies the following relationship: 0.02≦ Y/X ≦0.07  (1) wherein X represents a maximum absorbance of the ink composition at a wavelength of from 400 to 450 nm; and Y represents an absorbance thereof at a wavelength of 500 nm.
Who is the assignee on this patent?
Ricoh Co Ltd
What technology area does this patent fall under?
Primary CPC classification C09D11/36. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).