Title:
INK COMPOSITION, INKJET RECORDING METHOD, AND COLORED BODY
Document Type and Number:
WIPO Patent Application WO/2015/152291
Kind Code:
A1
Abstract:
To provide an ink composition that has excellent discharge stability and redispersibility and has excellent rubfastness, an inkjet recording method that uses said ink composition, and a colored body that is colored using said ink composition. The abovementioned problem can be solved by means of an ink composition that contains a coloring agent, a polymer dispersing agent, a wax agent, and a liquid medium, said polymer dispersing agent being an A-B block polymer obtained by copolymerization according to a living radical polymerization method using a polymerization initiator, wherein said polymerization initiator is either a mixture of an organic tellurium compound represented by belowmentioned formula (1) and an organic ditellurium compound represented by belowmentioned formula (2), or a mixture of an organic tellurium compound represented by belowmentioned formula (1), an azo polymerization initiator, and an organic ditellurium compound represented by belowmentioned formula (2), and the A-B block polymer has an A block and a B block, wherein the monomer of which the A block is composed is at least one type of monomer represented by belowmentioned formula (3), and the monomer of which the B block is composed is benzyl methacrylate and/or benzyl acrylate. (In the formula, R1 represents a C1-C8 alkyl group or the like, and R2 and R3 represent hydrogen atoms or the like.) (In the formula, R5 represents a hydrogen atom or the like, and R6 represents a methyl group or the like.)
Inventors:
IUCHI MAIKO (JP)
KAWAGUCHI AKIRA (JP)
SAI HA (JP)
KAWAGUCHI AKIRA (JP)
SAI HA (JP)
Application Number:
PCT/JP2015/060251
Publication Date:
October 08, 2015
Filing Date:
March 31, 2015
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
International Classes:
C09D11/107; B41J2/01; B41M5/00; B41M5/50; B41M5/52; C08F293/00; C09C3/10; C09D11/326
Domestic Patent References:
| WO2013115071A1 | 2013-08-08 | |||
| WO2011093486A1 | 2011-08-04 |
Foreign References:
| JP2013129711A | 2013-07-04 |
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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