Development of Cosmetic Textiles for Body Care with Biological Benefits.

摘要

This thesis is concerned with the development of cosmetic textiles for body care with biological benefits. The research is aimed at creating a reliable substance delivery system for cosmetic textiles using the microencapsulation technique. Chitosan-based oil-in-water microencapsulation system was successfully developed for the encapsulation of oil-soluble substances using the coacervation technique. Optimisation of the of chitosan microencapsulation system was conducted with the aid of Orthogonal Array Testing Strategy in order to improve its encapsulation efficiency. Gelatin-based water-in-oil microencapsulation system was also successfully developed using the emulsion-hardening technique for the encapsulation of water-soluble substances. Optimisation of the gelatin-based microencapsulation system was carried out to improve the particle size of microcapsules. The release mechanisms of both the chitosan-based and gelatin-based microcapsules were also proposed based on their characteristics.;Different fabrication techniques with the aid of pre-treatment and post-treatment processes have been investigated to embed the newly developed microcapsules in textile materials with satisfactory performance. A systematic characterisation system has been successfully established for the evaluation of cosmetic textiles which provides guidance for the commercial sectors to assessing their performance in an objective and safety manner. The study covers five related aspects, namely (1) development and optimisation of microencapsulation systems for the skin caring substances, (2) characterisation of microcapsules in terms of physical and chemical properties, (3) in vitro and in vivo biological analysis of microcapsules, (4) development of cosmetic textiles containing microcapsules using various fabrication techniques, (5) establishment of a systematic characterisation system for cosmetic textiles.