Title:
The ink for ink-jet record, an ink cartridge, an ink jet recording method, an ink jet recording method, and an ink recorded matter
Document Type and Number:
Japanese Patent JP5966380
Kind Code:
B2
Abstract:
To provide an inkjet recording ink, which contains water, a water-soluble organic solvent, a colorant, and a surfactant, wherein the colorant contains a surfactant-dispersible pigment (A) dispersed by the surfactant, and a resin-coated pigment (B), and wherein the surfactant is a surfactant selected from the group consisting of anionic surfactants represented by the following formula (1), and having HLB value of 12 or higher: R1—O—(CH2CH2O)m-A (1) where R1 is a C2-C24 alkyl group, alkenyl group, alkylphenyl group, or alkylallyl group; A is —COOM1, —SO3M2, or —PO(OM3)OM4, where M1, M2 and M4 are each independently alkali metal, quaternary ammonium, quaternary phosphonium, or alkanolamine, and M3 is a hydrogen atom or R2(CH2CH2O)n with proviso that R2 is a C1-C4 alkyl group, alkenyl group, alkylphenyl group, or alkylallyl group, and n is an integer of 4 to 20; and m is and integer of 15 to 40.
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Inventors:
Tomohiro Nakagawa
Application Number:
JP2012012638A
Publication Date:
August 10, 2016
Filing Date:
January 25, 2012
Export Citation:
Assignee:
株式会社リコー
International Classes:
C09D11/326; B41J2/01; B41M5/00; C09D11/00; C09D11/322; C09D11/324; C09D11/328; C09D11/38
Domestic Patent References:
| JP2009132766A | ||||
| JP2002088286A |
Attorney, Agent or Firm:
Koichi Hirota