Title: Finely particulate polymer for stencil ink
Application Number: 96110052 Application Date: 1996.05.22
Publication Number: 1137550 Publication Date: 1996.12.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C09D11/10
Applicant(s) Name: Dainippon Ink and Chemicals, Inc. Address:
Inventor(s) Name: Ichiro Muramatsu;Mitsuo Kase;Toshiaki Kano
Attorney & Agent: LUO CAIXI
Abstract:
    A finely particulate polymer for use in a stencil ink is disclosed which is uniformly dispersible into a binder polymer having a solubility parameter of 11.0 or lower and has an average particle diameter of from 0.1 to 10 mu m and a maximum particle diameter of 50 mu m or smaller. The finely particulate polymer is highly advantageous in that stencil inks having an appropriate viscosity can be easily obtained with the particulate polymer using the same formulation even when the inks contain different colorants, and that with the particulate polymer, a colorant which has been unusable due to its adverse influence on the storage stability of stencil inks can be used to produce a stencil ink having excellent storage stability by encapsulating the colorant in the individual polymer particles.
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