Ink jet ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus

US8987348B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8987348-B2
Application numberUS-30321808-A
CountryUS
Kind codeB2
Filing dateMay 21, 2008
Priority dateMay 25, 2007
Publication dateMar 24, 2015
Grant dateMar 24, 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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Abstract

Official abstract text for this publication.

The invention provides provide an ink jet ink exhibiting such an excellent ejection property that when an ink containing a polymer capable of improving the scratch resistance of a recorded article is used, the deviation of the ink-droplet impact point on a recording medium is prevented. The ink jet ink contains a polymer and a surfactant, wherein the acid value of the polymer is from 100 mg KOH/g or more to 220 mg KOH/g or less, the weight-average molecular weight of the polymer is from 3,000 or more to 10,000 or less, and the surfactant has a structure represented by the following formula ( 1 ) wherein n is a numerical value of from 3 or more to 27 or less, and m is a numerical value of from 16 or more to 31 or less.

First claim

Opening claim text (preview).

The invention claimed is: 1. An ink jet ink comprising: a polymer; and a surfactant, wherein the acid value of the polymer is from 100 mg KOH/g to 220 mg KOH/g, and a weight-average molecular weight of the polymer is from 3,000 to 10,000, wherein a content (% by mass) of the polymer in the ink is at least 2.0% by mass but less than 3.5% by mass based on a total mass of the ink, wherein a content (% by mass) of the surfactant in the ink is from 0.10% by mass to 0.35% by mas…

Assignees

Inventors

Classifications

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • B41M5/0023Primary

    Operations & Transport · mapped topic

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What does patent US8987348B2 cover?
The invention provides provide an ink jet ink exhibiting such an excellent ejection property that when an ink containing a polymer capable of improving the scratch resistance of a recorded article is used, the deviation of the ink-droplet impact point on a recording medium is prevented. The ink jet ink contains a polymer and a surfactant, wherein the acid value of the polymer is from 100 mg KOH…
Who is the assignee on this patent?
Mukae Fumihiko, Ogasawara Masashi, Nagai Souichi, and 4 more
What technology area does this patent fall under?
Primary CPC classification B41M5/0023. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 24 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).