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1. (WO2018000226) THERMOSENSITIVE ERASABLE NEUTRAL INK AND PREPARATION METHOD THEREFOR

Pub. No.:    WO/2018/000226    International Application No.:    PCT/CN2016/087594
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Thu Jun 30 01:59:59 CEST 2016
IPC: C09D 11/16
B43K 7/00
B41M 5/28
Applicants: WAP INTERNATIONAL GROUP LIMITED
多莱(上海)文化用品有限公司
Inventors: LUO, Qiuhong
罗秋红
Title: THERMOSENSITIVE ERASABLE NEUTRAL INK AND PREPARATION METHOD THEREFOR
Abstract:
A thermosensitive erasable neutral ink, comprising temperature sensitive microcapsule particles, a dispersant, a humectant, a foam suppression and elimination agent, a rheological aid, a lubricant, a preservative, an antifreeze and deionized water, as well as a pH adjuster. The neutral ink is added with a large amount of the temperature sensitive microcapsule particles, such that writing done with the neutral ink is clearer, and a color thereof is also more defined; and at the same time, when the amount of the temperature sensitive microcapsule particles is large, defects of a traditional temperature sensitive microcapsule particle such as uneven distribution and propensity to precipitate may be overcome, so as to ensure ink stability and writing smoothness.