Insect repellents, anti-cellulite treatments, and antimicrobial agents for medical textiles are just a few of the features which clothing manufacturers are using to add value to their ranges, using microencapsulation techniques, according to the latest issue of Performance Apparel Markets.

This innovative technology makes use of microcapsules which act as tiny containers of solids or liquids. These containers release their core contents under controlled conditions to suit a specific purpose.

Microencapsulation is already used to impart a wide range of features, including:

• thermochromic and photochromic dyes, used to make garments which change colour when they are exposed to temperature changes or sunlight;
• anti-microbial and deodorising finishes, offering great potential for freshness retention during wear for intimate apparel, and for garments worn during periods of strenuous activity;
• the controlled release of active substrates, offering opportunities in the medical textiles field;
• insect-repellent and insect-resist treatments, demonstrating higher levels of performance if microencapsulated;
• finishes which effectively deodorise the retention of odours such as tobacco smoke, offering a further contribution to easy-care in apparel;
• flame retardant finishes, with improved durability of the treatment to leaching, domestic washing and dry cleaning;
• enhanced chemical protection, for the military and other users, particularly for chemical decontamination of hazardous chemicals and chemical warfare agents; and
• cosmeto-textiles, capable of imparting skin care benefits, combating ageing, and promoting a feeling of wellness or well-being.

Microencapsulation of flame retardants is now at the research stage. Significant development work will lead to performance apparel offering enhanced protection against heat and flame. Similarly, research and development could lead to improved protection against chemical warfare and hazards, says Performance Apparel Markets.

Microencapsulation technology is still relatively new to the textile and apparel industry. However, greater awareness of the benefits of the technology for performance apparel will emerge as chemical manufacturers target specific enhancements in apparel performance and focus their marketing effort accordingly.