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From sorting mixed fabrics to shredding and fibre recovery, textile recycling machines are the backbone of a more circular fashion industry.
Every year, vast quantities of clothing and textile offcuts end up in landfill simply because there has been no efficient way to separate, process and recover them. Textile recycling machines are changing that, turning discarded fabric into a usable raw material once again.
Fast fashion, short garment lifespans and the complexity of modern fabric blends have combined to create an enormous and growing stream of textile waste. Much of this waste is technically recyclable, but without the right equipment to sort it by fibre type, separate it from buttons, zips and other components, and break it down into a form that can be respun or reprocessed, it simply ends up incinerated or landfilled.
A typical textile recycling line begins with collection and pre-sorting, where garments are separated by general category – wearable items for reuse, and unwearable items for material recovery. Items destined for recycling then pass through stages of sorting by fibre composition – identifying cotton, polyester, wool, blends and other materials – followed by removal of hard components such as zips, buttons and labels.
Once sorted and stripped of non-textile components, the fabric is fed into shredding machines, which tear it into smaller pieces, and then into fibre-opening machines, which break the fabric down further into individual fibres. Depending on the intended end use, these recovered fibres can be respun into new yarn, used as filling material, or processed into nonwoven materials such as insulation or industrial wipes.
The main categories of equipment used across the textile recycling chain include automated sorting systems, which use sensors – often near-infrared spectroscopy – to identify fibre composition; shredders and tearing machines, which reduce garments to smaller pieces; fibre-opening or "garnetting" machines, which separate woven and knitted structures back into loose fibre; and baling equipment, used to compact sorted materials for transport to spinning mills or other end users.
Sorting is the single biggest bottleneck in textile recycling. Mixed-fibre garments – a cotton-polyester blend, for example – are far harder to recycle than single-fibre items, because the recovered material needs to be relatively pure to be useful for respinning. Optical and near-infrared sorting technologies are increasingly used to identify fibre composition automatically, sorting garments and offcuts into streams that downstream processors can actually use. PICVISA's ECOSORT TEXTIL systems apply this kind of automated sorting to textile waste streams, helping recover higher volumes of usable fibre by directing material to the right processing route from the start.
Recovered textile fibres find their way into a surprisingly wide range of products: respun into new yarns for clothing and home textiles, used as filling for mattresses, cushions and car seats, processed into insulation panels for construction, or turned into industrial wiping cloths and nonwoven fabrics. Each of these applications has different requirements for fibre purity and length, which is why accurate sorting at the start of the process is so important.
As regulation increasingly requires brands and retailers to take responsibility for the textiles they put on the market, demand for efficient textile recycling capacity is set to grow. Combining automated sorting technologies with mechanical recycling equipment will be key to processing the volumes involved – and to making recycled fibre a genuinely cost-competitive alternative to virgin material across the fashion and textile industries.
Discover ECOSORT TEXTILGet in touch with our team to discover how PICVISA's optical sorting and robotics solutions can fit your recycling operation.