Ink jet printing ink

US8939566B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8939566-B2
Application numberUS-201013512829-A
CountryUS
Kind codeB2
Filing dateNov 29, 2010
Priority dateDec 2, 2009
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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  5. First independent claim

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Abstract

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An ink jet printing ink for use in an ink jet printing method. The ink is ejected from a print head by the action of thermal energy and includes water, a self-dispersing pigment, and at least two types of resin particles. One of the at least two types of resin particles (resin particle A) and another of the at least two types of resin particles (resin particle B) have an average particle size of 80 nm or more but 220 nm or less and an acid value of 25 mgKOH/g or more but 150 mgKOH/g or less. The resin particle A has a glass transition temperature of 25 degrees Celsius or less. The resin particle B has a glass transition temperature of 25 degrees Celsius or more. A difference in glass transition temperature between the resin particle A and the resin particle B is 10 degrees Celsius or more.

First claim

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The invention claimed is: 1. An ink jet printing ink for use in an ink jet printing method in which the ink is ejected from a print head by the action of thermal energy, the ink jet printing ink comprising: water, a self-dispersing pigment, a resin particle A, and a resin particle B wherein the resin particle A has an average particle size of 80 nm to 220 nm, an acid value of 25 mgKOH/g to 150 mgKOH/g, and a glass transition temperature of 25 degrees Celsius or less, wherein the…

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What does patent US8939566B2 cover?
An ink jet printing ink for use in an ink jet printing method. The ink is ejected from a print head by the action of thermal energy and includes water, a self-dispersing pigment, and at least two types of resin particles. One of the at least two types of resin particles (resin particle A) and another of the at least two types of resin particles (resin particle B) have an average particle size o…
Who is the assignee on this patent?
Nakazawa Ikuo, Ikegami Masayuki, Canon Kk
What technology area does this patent fall under?
Primary CPC classification C09D11/102. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jan 27 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).