Title:
INK COMPOSITION
Document Type and Number:
Japanese Patent JP3962576
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an ink composition having dispersibility of an ink pigment and ink stability superior to those of a conventional polylactic acid ink.
SOLUTION: This ink composition comprises a hydroxyacid-based polyester represented by formulas (1) [wherein, X is a ≤20C alkyl group, a cycloalkyl group, an aryl group, an arylalkyl group, hydrogen, hydroxy group, nitro group, amino group, an acyl group, sulfonic acid group, an alkoxy group or a halogen; M is lithium, sodium, potassium or an amine represented by formula (3) (wherein, R2 to R5 are each independently hydrogen, an alkyl group, a phenyl group or benzyl group); m1 is an integer of 0-3; m2 is an integer of 1-4; m1 and m2 satisfy the relation of 1≤m1+m2≤4; and n1 is an integer of ≥1] and/or (2) [wherein, R1 is a ≤20C alkylidene group; M is lithium, sodium, potassium or an amine represented by formula (3)] an including a sulfonic acid-containing structure, the ink pigment and a solvent.
Inventors:
Takashi Miyamoto
Hotta Yasushi
Toshiyuki Kaku
Kazunori Okuyama
Akira Suzuki
Hotta Yasushi
Toshiyuki Kaku
Kazunori Okuyama
Akira Suzuki
Application Number:
JP2001351765A
Publication Date:
August 22, 2007
Filing Date:
November 16, 2001
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA
Toppan Printing Co., Ltd.
Toyo Ink Mfg. Co., Ltd.
Toppan Printing Co., Ltd.
Toyo Ink Mfg. Co., Ltd.
International Classes:
C08G63/688; C08L101/16; C09D11/00; (IPC1-7): C09D11/00; C08G63/688
Domestic Patent References:
| JP9095603A | ||||
| JP8003299A | ||||
| JP9176536A | ||||
| JP9157424A |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Toshio Morita
Yoshihei Nakamura