Invention Grant
US09278527B2 Ink jet recording ink, ink jet recording method, ink jet recording head, and ink jet recording apparatus
有权
喷墨记录油墨,喷墨记录方法,喷墨记录头和喷墨记录装置
- Patent Title: Ink jet recording ink, ink jet recording method, ink jet recording head, and ink jet recording apparatus
- Patent Title (中): 喷墨记录油墨,喷墨记录方法,喷墨记录头和喷墨记录装置
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Application No.: US14474547Application Date: 2014-09-02
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Publication No.: US09278527B2Publication Date: 2016-03-08
- Inventor: Kanako Aratani , Ryuta Aoto , Yuusuke Sumikawa , Takahiro Tsutsui , Shintaro Suzuki , Masato Kawakami
- Applicant: CANON FINETECH INC.
- Applicant Address: JP Misato-shi
- Assignee: Canon Finetech Inc.
- Current Assignee: Canon Finetech Inc.
- Current Assignee Address: JP Misato-shi
- Agency: Fitzpatrick, Cella, Harper & Scinto
- Priority: JP2013-185457 20130906
- Main IPC: B41J29/38
- IPC: B41J29/38 ; B41J2/15 ; B41J2/14 ; B41J2/175 ; C08K5/3415 ; C09D11/322 ; C09D11/38 ; C09D125/14 ; C09D11/033 ; C09D11/30 ; B41J2/165

Abstract:
An ink jet recording ink including a pigment; water; and water-soluble compounds. The pigment comprises a resin-dispersed pigment dispersed with a (meth)acrylate-based random copolymer having an acid value of 100-160 mgKOH/g. The water-soluble compounds include at least ethylene urea and a water-soluble compound having a hydrophilicity-hydrophobicity coefficient defined by the following equation (A) of 0.37 or less The total content of the water-soluble compounds is 22-50 mass % with respect to the total amount of the ink The content of the ethylene urea is 11.0 mass % or more with respect to the total amount of the ink, and the proportion of the amount of the ethylene urea in the total amount of the water-soluble compounds is 50% by mass or less, Hydrophilicity-hydrophobicity coefficient=((water activity value of 20% aqueous solution)−(molar fraction of water in 20% aqueous solution))/(1−(molar fraction of water in 20% aqueous solution)) Equation (A).
Public/Granted literature
- US20150070436A1 INK JET RECORDING INK, INK JET RECORDING METHOD, INK JET RECORDING HEAD, AND INK JET RECORDING APPARATUS Public/Granted day:2015-03-12
Information query
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