Development of Titanium Dioxide Suspension Utilizing Reversible Dispersion Flocculation Control and its Application to Inkjet

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  • 可逆的分散凝集制御を用いた二酸化チタンサスペンションの開発とインクジェットへの応用
  • カギャクテキ ブンサン ギョウシュウ セイギョ オ モチイタ ニサンカ チタンサスペンション ノ カイハツ ト インクジェット エ ノ オウヨウ

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Abstract

<p>Previously, we have reported the successful preparation of a soft flocculated suspension. This is a suspension in which fine particles are well dispersed by using a polyelectrolyte dispersing agent, and then Mg2+ ions are added to crosslink between the dispersants adsorbed on the surfaces of the particles, so that the particles temporarily return to a liquid state with light shaking while behaving as gels at rest.</p><p>In the present work we tried to apply this soft cohesive suspension as a low viscosity suspension of titanium dioxide having high versatility as a cosmetic powder. The use of globular titanium dioxide with a low yield value resulted in the successful development of a soft cohesive suspension with no precipitation or deposition of particles. In addition, when the application of this suspension in a white inkjet ink was examined, both the addition molding to a solid powder product using a piezo type cartridge and the printing experiment with a home printer using a thermal type cartridge showed the good results.</p>

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