Method for manufacturing shear-feelable aqueous ballpoint pen ink, composition for shear point-reducing aqueous ballpoint pen ink composition and ballpoint pen using the same

摘要

The shear-thinning aqueous ballpoint pen ink composition comprises 1% to 35% of a dye, 2% to 35% of a water-soluble ionizing solvent, 1% to 30% of a deionized surface active agent having an HLB value of 8 to 12, Water and a control additive, 25 mPa. s to 160 mPa. s (value at 25C, revolution at 100 rpm in EM type rotational viscosity), shear diminution index in the range of 0.1 to 0.6, and said deionized surface active agent is dispersed in particulate form And a mixed state including a state dissolved in a molecular state.;Also disclosed are methods of making an ink composition and ballpoint pens using the ink.