Title:
PIGMENT INK
Document Type and Number:
Japanese Patent JPH01225680
Kind Code:
A
Abstract:
PURPOSE: To prevent the sedimention of a pigment, by enclosing a pigment and a gas in hollow microspheres to form a microencapsulated material, and dispersing this material in a solvent.
CONSTITUTION: A gas and a part of or the whole of a pigment are enclosed in hollow microspheres to form a microencapsulated material having a bulk specific gravity equal to the specific gravity of a solvent. This microencapsulated material is dispersed in the solvent, if necessary, after surface treatment to increase the compatibility with the solvent.
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Inventors:
WAKATA MASASHI
Application Number:
JP5231988A
Publication Date:
September 08, 1989
Filing Date:
March 04, 1988
Export Citation:
Assignee:
MITSUBISHI PENCIL CO
International Classes:
A61K8/11; A61K8/00; A61K8/04; A61K8/18; A61Q1/02; C09D11/16; C09D11/17; (IPC1-7): A61K7/00; A61K7/02; A61K7/021; C09D11/16
Attorney, Agent or Firm:
Taizo Sugiyama
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