Why ‘recycled’ garments are so laborious to recycle

Today we make extra clothes than ever earlier than. And the driving force for that is primarily financial, moderately than human want. Over the previous decade, the time period “round economic system” has entered the style trade lexicon, whereby supplies are made to be reused and recycled by design.

Yet we haven’t seen the identical degree of recycling in trend as we have now in different areas – corresponding to with plastic recycling, as an example. And that is primarily as a result of clothing-to-clothing recycling is far more tough.

The use of recycled polyester and cotton by manufacturers corresponding to H&M and Cotton On are key features of those firms’ sustainability initiatives – however the supply of those recycled fibers often isn’t clothes. Recycled polyester tends to come from plastic bottles, and recycled cotton is often produced from manufacturing waste.

The truth is most clothes is solely not designed to be recycled. Even when it’s, the style trade lacks the type of infrastructure wanted to essentially embrace a round economic system mannequin.

Why is recycling garments tough?

Recycling clothes isn’t like recycling paper, glass or steel. Clothes are endlessly variable and unpredictable. So they’re not excellent for recycling applied sciences, which require a gradual and constant supply materials.

Even a seemingly easy garment could comprise a number of supplies, with fiber blends corresponding to cotton/polyester and cotton/elastane being widespread.

Different fibers have completely different capacities for recycling. Natural fibers corresponding to wool or cotton could be recycled mechanically. In this course of the material is shredded and re-spun into yarn, from which new cloth could be woven or knitted.

However, the fibers grow to be shorter by means of the shredding course of, leading to a decrease high quality yarn and material. Recycled cotton is usually combined with virgin cotton to make sure a greater high quality yarn.

Most materials are additionally dyed with chemical compounds, which may have implications for recycling. If the unique cloth is a mix of many colours, the brand new yarn or cloth will probably want bleaching to be dyed a brand new shade.

A fancy garment corresponding to a lined jacket simply accommodates greater than 5 completely different supplies, in addition to trims together with buttons and zippers. If the purpose of recycling is to reach at a fabric as near the unique as doable, all of the garment’s elements and fibers would first should be separated.

This requires labor and could be costly. It’s usually simpler to shred the garment and switch it right into a low-quality product, corresponding to shoddy which is used for insulation.

Insulation produced from recycled denim. [Photo: BanksPhotos/Getty Images]

Companies corresponding to BlockTexx and Evrnu have developed processes to recycle fibers from blended materials, although such recycled fibers aren’t but extensively obtainable.

Through a proprietary know-how, BlockTexx separates cellulose (current in each cotton and linen) and polyester from textile and clothes waste for brand spanking new makes use of, together with in new clothes. And Evrnu has developed a type of lyocell made fully from textile and clothes waste.

Spain-based firm Recover meticulously types by means of completely different sorts of cotton textile waste to provide prime quality, mechanically recycled, cotton fiber.

There’s additionally organic recycling. Fiber waste from the Rivcott cotton “gin” (or cotton engine) is composted to grow to be fertilizer for a brand new cotton crop. The similar is feasible with pure fibers from worn-out clothes, after doubtlessly poisonous dyes and chemical compounds have been eradicated.

Synthetic fibers corresponding to polyester and polyamide (nylon) will also be recycled mechanically and chemically. Chemical recycling by means of re-polymerization (the place the plastic fiber is melted) is a gorgeous choice, for the reason that high quality of the unique fiber could be maintained.

In concept it’s doable to make use of polyester clothes because the supply for this. But in follow the supply is often bottles. This is as a result of clothes is often “contaminated” with different supplies corresponding to buttons and zippers, and separating these is simply too labor intensive.

The plastic downside

Almost all recycled polyester in clothes in the present day comes from recycled plastic bottles, moderately than earlier polyester clothes. This is important when you think about polyester accounts for greater than 60% of all fiber use.

Given the fast enhance within the manufacturing of synthetic fibers, and the as-yet-unknown affect of microplastics (which had been documented in human placentas final 12 months) – the query stays whether or not clothes must be produced from biologically incompatible supplies in any respect.

Polyester garments, no matter fiber sources, contribute to microplastic air pollution by shedding fibers when worn and laundered.

A brand new technology of artificial fibers from renewable sources (recyclable and in addition biodegradable) provides a path ahead. For occasion, the Kintra fiber is produced from corn.

Reduce and reuse earlier than you recycle

There’s loads of proof that decreasing the consumption of clothes by carrying gadgets longer and shopping for secondhand is preferable to buying recycled fiber garments.

But even secondhand trend isn’t with out issues when you think about the size and tempo of clothes manufacturing in the present day.

Liz Ricketts of the U.S.-based OR Foundation, a charity centered on sustainable trend, paints a gruesome picture of the Kantamanto market in Ghana, the place a lot of the world’s secondhand clothes finally ends up (together with from Australia).

One path ahead is for firms to take duty for merchandise at their finish of life. U.S. trend model Eileen Fisher is a pioneer on this entrance.



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