Preparation of Self-Curable Aqueous-based Polymeric Ink System

• Main Authors: Yi-Yu Chen, 陳怡佑
• Other Authors: Kan-Nan Chen
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/38142171015404035638

碩士 === 淡江大學 === 化學學系碩士班 === 94 === This research is aiming at non-solvent type polymeric dyes become water-resistant and solvent-resistant polymeric dyes by self-curing and UV-curing processes. First, the carboxyl group containing aqueous-based polymeric dyes dispersions were prepared from a reaction between isocyanate group of PU prepolymer and the hydroxyl or amine group of a disperse dye. Self-curable aqueous-based polymeric dye is formulated by mixing the aqueous-based polymeric dye with a curing agent, TMPTA-AZ. The stable aqueous-based polymeric dye becomes water-resistant and solvent-resistant inks by cross-link reaction on drying dispersion. Second, an acrylate containing dye was synthesized. A UV-curable polymeric dye system can be prepared by mixing this reactive dye with UV-reactive PU oligomer and photoinitiator. This UV-curable polymeric dye provides for a convenient process obtaining a water-resistant and solvent-resistant polymeric ink. All the polymeric dye films before and after curing were evaluated by the measurement of gel content, water absorption, alcohol uptake and thermal stability. Finally, the aqueous-based polymeric dye PU dispersions as an ink for writing applications.