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Comment Sustainability

Scaling up a recycling process for blended textile fibers

By Mary Page Bailey |

In order to handle the growing volume of waste textile materials, recycling processes must begin significantly scaling up. Lenzing AG (Lenzing, Austria; www.lenzing.com) and Södra (Växjö, Sweden; www.sodra.com) are joining forces to scale up the OnceMore textile-recycling process, which is said to be the world’s first industrial-scale recycling technology for textiles with blended fibers, which are typically seen as difficult to efficiently recycle. Source: Södra[/caption] “OnceMore is able to simultaneously degrade polyester while retaining the cotton or cellulosic part of the material. Today, the process accepts textiles containing up to 50% polyester. Since polyester-cotton is one of the most abundant textile blends, we can process many types of post-consumer waste, including bedsheets, napkins, towels and garments,” explains Johannes Bogren, vice president of Södra’s Cell Bioproducts division. Furthermore, OnceMore is capable of large-scale production because it is able to use existing pulp-mill equipment says Bogren. The process blends waste textiles with wood cellulose to create a dissolving high-alpha-cellulose pulp product that can be processed into new textile products. The OnceMore technology has successfully…
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