INK COMPOSITION FOR HIGH-SPEED SCREEN PRINTING, PRINTED MATTER PRODUCED BY THE HIGH SPEED SCREEN PRINTING OF THE INK COMPOSITION, AND METHOD FOR PRODUCING THE PRINTED MATTER

摘要

Ink composition high-speed screen printing, printed article obtained by high-speed, producing width of no more than 10 æm, containing a solvent with a boiling point of not less than 170øC at not less than 70 wt pcnt of the total solvent, and a prepolymer or polymer with a weight-average molecular weight of not less than 2000 at not less than 7 wt pcnt of to the total ink composition, and having a viscosity of not less than 6 Pas and less than 30 Pas as measured with a BH-type rotating viscosimeter at 25øC, and a thixotropic index of 2.0 to 8.0, the measured flow radius value of 14.0 to 24.0 mm after 1 minute from the start according to JIS K5701-1:2000 satisfying "F60" - "F45" = 0. 8 mm, where "F60" and "F45" are severally flow radius value after 1 minute 45 seconds from the start.