Changes

From TEKOWiki
Jump to: navigation, search

Polyester & Recycled Polyester

9 bytes added, 07:58, 17 April 2015
/* Chemical recycling */
• Diverts textile waste from landfills
|| • Difficult to label, collect, sort and purify post-consumer garments on a large scale
• Some fabrics with chemical backing, lamination, finish or those used in complex blends with other synthetics (nylon, for example) are not physically recyclable.[14]
• Recycled polyester from PET bottles is particularly suited for use in fabric such as polar fleece, where the construction of the fabric hides slight yarn variations.[14]
• This process degrades the fibre and eventually the product is disposed of in the landfill.
• Beware: The demand for used PET bottles is now surpassing supply in some areas and reports indicate that some suppliers are buying new bottles to make polyester textile fibre that can be called recycled.[14 ]
|| • Since the base colour of recycled polyester chips varies, colour inconsistencies in the fabric may occur, and this can lead to the need for re-dyeing. Re-dyeing greatly increases levels of water, energy and chemicals used.[14]
• Some fabrics with chemical backing, lamination, finish or those used in complex blends with other synthetics are not chemically recyclable.[14]
|| • Uses significant amounts of energy.
|}