Title:
INK COMPOSITION AND PRINTED MATTER
Document Type and Number:
Japanese Patent JP3639479
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problems that in printed matter printed in white on colored paper with an ink composition comprising a resin, hollow microsphere, a dispersing solvent, etc., the white print is tend to disappear when a thinner is splashed on the print or kept at a high temperature and that the ink composition has difficulty in adhesion to a resin based printing surface such as a PVC sheet.
SOLUTION: The ink composition comprises 2-20 wt.%, based on the total weight, resin, 5-25 wt.%; hollow microsphere and a dispersing solvent mainly comprising water and at least one kind of alcohols having melting points of 55-120°C. The hollow microsphere has at least 60% methyl isobutyl ketone insoluble components, the outer diameter of the hollow microsphere is 0.2-1 μm, and the ratio of the inner diameter to the outer diameter is at least 0.4. The ink composition has excellent whiteness of the print to a colored surface to be printed, solvent resistance and heat resistance. Further, when a polyurethane resin is added in the ink composition, an ink composition that has high adhesion to a resin surface such as a PVC sheet is obtained.
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Inventors:
Fukushima Noriaki
Yoshinori Yamamoto
Yoshinori Yamamoto
Application Number:
JP31040199A
Publication Date:
April 20, 2005
Filing Date:
October 29, 1999
Export Citation:
Assignee:
Hitachi Maxell Co., Ltd.
International Classes:
B41J2/01; B41M5/00; C09D11/00; C09D11/326; C09D11/38; (IPC1-7): C09D11/00; B41J2/01; B41M5/00
Domestic Patent References:
| JP63254176A | ||||
| JP11106693A | ||||
| JP11293166A | ||||
| JP10158554A | ||||
| JP6220374A | ||||
| JP6184478A | ||||
| JP2000239585A | ||||
| JP2001131450A |
Attorney, Agent or Firm:
祢▲ぎ▼元 邦夫