Title:
INKJET RECORDING INK
Document Type and Number:
WIPO Patent Application WO/2015/115569
Kind Code:
A1
Abstract:
The present invention provides an inkjet recording ink comprising a dye represented by formula (1) below having a weight-average molecular weight of 850 or less, a water-soluble organic solvent represented by general formula (2) or (3) having an SP value of 9.4 or higher and less than 9.75, and water, the content of a surfactant being less than 0.1 mass%. R1, R2: H, halogen atom, OH, COOH, C1-C6 alkyl group, C1-C6 alkoxy group, NO2, azophenyl group; -L1-Ra and the like, L1: O, CH2, C6H4, N=N, SO2 or a combination thereof;Ra:phenyl group, naphthyl group; R3: H, azophenyl group, azonaphtalene group; -L2-Rb and the like, L2: C(=O), C6H4, N=N, NH, SO2 or a combination thereof; Rb: phenyl group, naphthyl group, pyrimidyl group, or the like; M: H, Na, NH4, alkyl ammonium or the like; R: C2-C6 unsubstituted alkyl group; n = 1 to 3.
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Inventors:
SHINOHARA RYUJI (JP)
SAITO YUKO (JP)
SAITO YUKO (JP)
Application Number:
PCT/JP2015/052580
Publication Date:
August 06, 2015
Filing Date:
January 29, 2015
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
C09D11/30; B41J2/01; B41M5/00; C09B29/30; C09B33/18; C09B33/30; C09B62/04; C09B67/44
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Other References:
See also references of EP 3101071A4
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
Nakajima 淳 (JP)
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