UV-ACTIVE MICROCAPSULES AND PREPARATION METHOD THEREOF

摘要

PURPOSE: Photo-sensitive micro-capsules and a method for manufacturing the same are provided to obtain photo-sensitive polyelectrolyte micro-capsules by introducing a photo acid generator to a polyelectrolyte multi-layered structure. CONSTITUTION: Photo-sensitive polyelectrolyte micro-capsules include a polyelectrolyte capsule and a photo-acid generator which is trapped in the capsule. The photo-sensitive polyelectrolyte micro-capsule is based on polyelectrolyte of negative charges and polyelectrolyte of positive charges. A method for manufacturing the photo-sensitive polyelectrolyte micro-capsules includes the following: The polyelectrolyte of negative charges is reacted with hardening melamine-formaldehyde colloid particles in an aqueous solution. The polyelectrolyte is coated on the surface of the colloid particles. The polyelectrolyte of positive charges is reacted with hardening melamine formaldehyde in an aqueous solution to coat the polyelectrolyte of positive charges on the surface of the capsule. The aqueous solution is washed with an acid solution of pH 1 or less to eliminate the hardening melamine formaldehyde. Polyelectrolyte capsules are obtained. The photo-acid generator is introduced into the polyelectrolyte capsules.