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19/05/20 What Is Rayon? Get To Know Your Sustainable Fabrics

Still confused when it comes to the words ‘rayon’, ‘viscose’ and ‘semi man-made fabrics’? Still wondering, is rayon a good fabric? Or, is rayon a plastic? You’re not the only one. We’ve already discussed ‘Modal’ and ‘Tencel’ in detail, but what about their larger family? It’s pretty big and it’s not a new family either. In reality, they’ve been around for over 100 years, making them the oldest form of manufactured fibre.

So, what are they? ‘Rayon’ and other viscose products are ‘made from regenerated cellulose, also known as viscose.’ In most cases, wood or plant bark is bleached and broken down by chemicals, creating a viscose liquid (hence the name!). This is then squeezed through a showerhead into an acid bath that solidifies the viscose into yarn. The yarn is then treated again and spun.

This process was discovered and developed in Europe during the 1800s to provide a cheap alternative to silk. Over the years, it’s been adapted to create several different products that can be very tricky to get your head around.

 

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Although ‘Rayon’ and ‘Viscose’ are often mistaken as individual products – they are one and the same. Over the years, the original name ‘ viscose rayon’ has been shortened to ‘viscose’. While Rayon is still the term used in the US – it’s ‘viscose’ you’ll see on most labels over here.

Rayon is also used as an umbrella term for other products developed in the same way. Here are a few of the main contenders:

Modal, developed in Japan in the 50s is specifically made from Beech tree pulp. It is stronger and lighter than traditional rayon, but still soft and smooth to the touch.

Cupro is another, made using a solution of copper and ammonium to break down cotton waste fibres using a ‘closed-loop’ manufacturing process, so 99% of the harsh chemicals are recycled rather than becoming waste.

Lyocell is manufactured using this ‘closed-loop’ process too and is probably the youngest of the ‘rayon’ family – developed only in the 70s. Very often it is made out of eucalyptus plants. You’ll recognise this type as ‘Tencel’, the brand name of the biggest producer.

 

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Image courtesy: Reformation

These fabrics aren’t without their problems though. Older, traditional rayons use nasty chemicals and acids throughout the production process. There have been cases of exposed factory workers and, after they’re used, these substances get chucked back into the environment.

Lyocell and Cupro, face many accusations of rainforest destruction and community displacement. However, for these newer versions of rayon, the positives are massive. Not only are they biodegradable, the newer, circular production process means there is very little chemical waste. They also use much less water than traditional textiles, which is a big win in our book.

So in theory, this family has huge potential. Sustainable fabrics with a relatively low eco-footprint. Loads of brands are now using them, from Reformation to big retailers like H&M. Now, as more and more of them appear on the market, it’s good to know a little more about them when thinking about your next wardrobe upgrade.

 

Written by: Jennifer Llewellyn

Sources:
https://www.tencel.com/about

Material Guide: How Ethical is Modal?


http://www.madehow.com/Volume-5/Lyocell.html
https://www.apparelsearch.com/education/ohio_state_clothing_education/rayon_multi-faceted_fiber.htm
https://www.swicofil.com/commerce/products/viscose/278/introduction
https://www.theguardian.com/fashion/2019/nov/18/pulp-fabric-everything-you-need-to-know-about-lyocell
https://www.britannica.com/technology/rayon-textile-fibre

 

26/02/20 Did You Know Salomon Running Shoes Can Be Recycled Into Ski Boots?

Salomon is trying to make shoes more sustainable.

The outdoor clothing and footwear brand, Salomon, makes millions of shoes every year and knowing that they have a limited life cycle by design, they want to do something to counter them eventually ending up in landfills.

In 2017, the US produced over 12 million tons of clothing and footwear waste, with only around 13.5% of that being recycled.

 

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Image courtesy: Salomon

Ordinarily, shoes are made of various different materials such as rubber, leather, and plastic, which makes them difficult to recycle. Salomon has developed a process that it hopes will help solve this problem: turning a used shoe into a new ski-boot shell. The key to Salomon’s new shoe is that it’s made entirely out of one material: TPU, or thermoplastic polyurethane. TPU is a type of plastic that’s light but durable and can be reshaped when heated, meaning it’s naturally well suited for manufacturing.

The company’s new concept shoe is made entirely out of one material, TPU.

So, instead of throwing away old shoes, customers can return them to Salomon, who will then clean the shoe and grind it down into small particles and combine with new TPU to form a brand new ski boot shell.

 

 

In fact, Salomon says it will use 20% to 50% recycled TPU in each ski boot and eventually hopes to collect and recycle the ski-boot shell as well.

Salomon wants 70% of its waste to be recycled or reused by 2025. With the company also pledging to stop using perfluorinated chemicals by 2023. PFCs are used in durable water repellent finishes, which are common in outdoor clothing but can be harmful to both humans and animals. All these changes bring us a little closer to a more sustainable future.

24/01/20 More Than 50% of Polyester in Adidas’ Trainers Will Be Recycled This Year

Adidas continues to lead the sustainability front in footwear with its latest announcement that more than half of the polyester used in its products in 2020 will come from recycled plastic waste and by 2024 only recycled polyester.

The plastic waste is collected from beaches and coastal regions and this year alone will be used to produce about 15 to 20 million pairs of shoes.

If we wanted to track the rise in demand for sustainable sneakers all we have to do is look back at the increase in production by Adidas alone: it released more than 11 million pairs last year, 5 million in 2018 and 1 million in 2017.

 

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Image courtesy: Adidas

 

“The use of recycled plastic in products is part of the company’s efforts to avoid plastic waste and stop the pollution of the world’s oceans,” Adidas wrote in a statement. “The spectrum ranges from using increasingly sustainable materials, waste prevention and new types of take-back programs for used products to climate protection.”

In fact, the sportswear giant is also doubling down on its existing eco-friendly initiatives and going beyond simply using sustainable materials. The brand has also continued to work on the development of its first fully recyclable running shoe, the Futurecraft Loop. The sneaker, which is fused together without the need for glue, was tested on 200 athletes last year and is expected to launch in 2021.

Further to this, Adidas intends to reduce greenhouse gas emissions from both its own activities and those of its suppliers by 30% by 2030 as well as reach climate neutrality by 2050. (Since 2018 it sources only sustainably produced cotton.)

Explore adidas by Stella McCartney key pieces here.

23/09/19 Why All The Fuss About Veja’s New Running Shoe?

The so-called “post-petroleum” shoe, Veja’s new sustainable running shoes, join the growing number of eco-friendly running trainers.

But wait, does that mean your current running shoes are made from petroleum? It’s highly likely the answer is yes.

In fact, sneakers have one of the heaviest carbon footprints of anything we wear. A study conducted by MIT found a typical pair of running shoes generates approximately 13.6 kilograms of CO2 emissions. “Unusually high,” comments Randolph Kirchain, one of the co-authors of the research, for a product that does not use electricity or require power-driving components. The bulk of emissions come from manufacturing, which is unsurprising considering the production processes and materials involved.

In fact, the footwear industry as a whole relies on petroleum as it’s essentially the source of plastic, with running shoes, in particular, dependent on the greasy, goopy stuff. In order for running shoes to do their job by stabilising the foot and soften the impact, the typical shoe ends up being made almost entirely from plastic and foam.

Although we know these materials are a calamity, the truth is that they are cheap and practical. Beyond the cool designs and endless colourways, running shoes have to have flexibility, strength, and memory; with plastic being the best and cheapest material to deliver on this.

“The typical running shoe is completely made of plastic,” Veja co-founder Sébastien Kopp explained to Vogue. “And what is plastic? Ninety-nine per cent petroleum.” Petroleum-derived plastics include polyester, thermoplastic polyurethane (TPU), polyethylene terephthalate (PET) and ethylene-vinyl acetate (EVA). “Our society’s dependence on plastic and oil is an ecological and social disaster,” he adds.

The difference here with Veja’s first ever performance running shoe, the Condor, is that it’s made from 53% natural or recycled materials including wild Amazonian rubber, jute, and banana oil. The sole is a combination of wild Amazonian rubber, rice waste and synthetic rubber, whereas the upper is made from a mesh created using plastic bottles picked up on the streets of Rio and Sao Paolo.

Whilst 53% of the shoe is made from natural and recycled materials, the remaining 47 percent is rubber and virgin plastic, specifically ethylene-vinyl acetate (EVA), much to the makers’ frustrations.

 

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Image courtesy: Veja | Arthur Wollenweber

 

It’s a number that co-founder Sébastien Kopp says is an honest, if improvable, entry point for a running shoe made by an independent, self-funded company. Afterall, they are competing against the likes of Everlane and Allbirds, who have both received huge amounts of funding to develop trainers that are more fit for stylishly hitting the city pavements, while Adidas has been pumping millions into R&D projects around sustainable footwear.

Designed for long runs (but not serious marathons), the goal was to incorporate more bio-based ingredients while ensuring that the shoe could reliably pound the pavement for a couple of years without falling apart. They quickly realised that replacing virgin plastic was much easier in the shoe’s superficial components. A mesh upper made entirely from recycled plastic bottles comes in gray, white, neon yellow, and black. The brand’s signature V decal is constructed from 100 percent castor oil, while the lining on the inside of the shoe is made from organic cotton and recycled plastic bottles.

However, the main structure of the shoe was more difficult. The outsole, the inner sole and the midsole are all commonly made from plastic, and every company has its own tightly held recipe for its foam’s fit and feel.

Nevertheless, since the Condor is less performance-based than something like Adidas or Nike’s marathon-ready trainers, it meant Veja could experiment with some of the materials in its sole. According to Veja, their material scientists spent three years searching for a mix of ingredients that would create a strong outsole that wasn’t pure synthetic rubber. They landed on a mixture of 30 per cent wild rubber, 39 per cent synthetic rubber, and 31 per cent rice husk that makes the sole light but firm.

 

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Image courtesy: Veja | Arthur Wollenweber

 

The midsole, too, is a combination of bio-based and synthetic materials. Fifty-five percent of the midsole is made from regular EVA—a modern, if environmentally destructive, marvel of material science known for its lightweight bounciness. For the other half, Veja created a bio-based foam made from banana oil (for flexibility), rice husk (for firmness), and sugarcane, the latter of which is quickly becoming a common replacement for petroleum-based materials like EVA. For the insole, Veja concocted a mixture of regular EVA, jute, wild rubber, recycled plastic bottles, and recycled EVA that comes from the scraps generated during production.

The end product is still a shoe made with plastic, but less so than before. This incremental approach is the most realistic—and honest—way to banish virgin plastic from the shoe production cycle, Kopp says. “The best way to prevent greenwashing is to talk about the present,” he says.

Thanks to Veja transparency, it’s possible to see areas like this where there are limitations in the availability of sustainable materials that perform well enough for these important pieces of sports equipment. Absorbing shock is vitally important in performance footwear and, whilst Veja have managed to reduce the quantity of EVA in their shoes it is still essential to their running optimisation.

EVA is not currently a commonly recyclable material.

Shop Veja here.

02/09/19 Grown in the Lab: The North Face Moon Parka

While most winter parka jackets are made out of nylon, twill, or maybe waxed cotton, The North Face have come out with one made from synthetic spider silk.

The North Face Moon Parka, a prototype jacket created using a new material called Qmonos that promises to be stronger than steel, is a special edition coat from The North Face that’s currently on an exhibition tour of the company’s Japanese stores. With a very special, luminescent shell; the material is made from an ersatzspider silk developed by Japanese company Spiber, a biotechnology company engaged in the development of synthetic protein materials.

 

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Image courtesy: Spiber

 

According to Spiber’s website, the company is still working to increase yield, which will be vital to bringing this and other synthetic silk products to market The advantages of Spiber’s material over existing fabrics have yet to be made public, aside from the obvious. At the same time, The North Face still hasn’t settled on a price point for the jacket. In other words: there’s still plenty to be worked out. Even if these gold coats make their way to market, don’t expect to see synthetic spider silk everywhere just yet.

 

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Image courtesy: Polymers grown in the lab, using no fossil fuels or petroleum | Spiber

 

This jacket is more a proof of concept if you like. Spiber President Kazuhide Sekiyama launched the company in 2007 with a seemingly straightforward mission: to develop polymers with the near-magical properties of spider silk that can be produced sustainably, at scale.

And it’s not a new idea. Spider silk is renowned for its strength and resiliency; it’s tougher than Kevlar by weight but more elastic and responsive than fibres like cotton, making it a highly covetable material for manufacturers—especially those in the automobile, aeronautics, and military industries.

The thing is, farming silk from spiders isn’t as simple as harvesting wool from sheep, or milk from cows. It takes a lot of spiders a lot of time to produce not a lot of silk. What’s more, arachnids housed together in captivity have a nasty habit of eating one another. Consequently, researchers have been searching for a way to mass-produce synthetic spider silk for years. Usually, this involves inserting genes from spiders into other organisms—yeast, alfalfa, and even goats have been genetically modified to produce synthetic spider silk proteins.

To date, nobody has been able to manufacture synthetic silk on par with the real stuff. But companies like Spiber are getting closer.

 

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Image courtesy: Spiber

 

Spiber, for its part, uses genetically modified bacteria to produce its synthetic silk proteins. Researchers feed the bacteria sugar, which they turn into synthetic silk proteins. Those proteins are spun into silk polymers through an extrusion nozzle with microscopic holes that are meant to mimic a spider’s silk-spinning organ. Spiber has over 650 types of polymers in its lab and it’s an entirely biological process. One that Spiber says requires no fossil fuels or petroleum.

Course, Spiber isn’t the first to this discovery. California based Bolt Threads announced last year that it had managed to make synthetic spider silk at scale.

 

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Image courtesy: Spiber

 

Spiber and The North Face haven’t settled on a price yet but they are in the process of getting the Moon Parka ready for market. Plus, in the interest of Spiber’s ultimate goal, which is to “push humanity away from petroleum-based materials and toward a more sustainable future”, they hope to keep the cost as low as possible.

It’s supposed to go on sale sometime next year.

 

22/08/19 What is Recover Yarn?

The epitome of circularity, Recover Yarn is one of those miracle materials that allows for a closed-loop and sustainable fashion industry.

Get this. In 1947 the Ferre family, in their native Banyeres de Mariola, a small town in Alicante, Spain, began recycling textile waste into cotton yarn and have been turning waste into resources ever since. Most proud of pioneering sustainable materials and processes, Ferre allows for a truly closed-loop fashion industry. In 2006, the company launched its unique system of textile waste collection and recycling, named Recover; a name that defines both the company’s process and purpose. Then in 2015, the Recover Upcycled Textile System was officially launched and today has led to the company becoming an authority in upcycled cotton yarn.

 

So, how does it work exactly?

Used clothes and old textile waste are deposited at collection bins for re-wear or recycling, and then recovered and sorted from all over the planet. Led by a team of experts in textiles, fashion and sustainability who work to propel the development of a closed-loop industry, the Recover Upcycled Textile System upcycles textile waste into new Recover fibre by cutting, shredding and spinning what was once considered “waste” into valuable new recover yarns. The Recover yarns are then knitted or woven into new textiles for virtually every product imaginable, from clothing, accessories, and home goods. And, once used and eventually worn-out, they can be returned to the Recover Upcycled Textile System where they close the loop and begin the journey of recovery once more.

Not only does Recover Upcycled Cotton Yarns score the best in the Higg MSI Index that measures and scores the environmental impact of materials used in creating textile products, but their materials are free of hazardous substances, and exceeds ZDHC and Reach Compliance (calculated through LCA work).

 

So, what are the materials helping to close-the-loop on fashion?

 

 

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Recover R WOOL (natural)

This new yarn is an upcycled blend of post-industrial wool cutting scraps, recycled PET bottles, and Nylon 6.6, designed for maximum strength and softness.

 

 

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Recover R EARTH (upcycled and natural)

This new yarn is a natural blend of Recover Upcycled Cotton and virgin organic cotton for comfort and durability.

 

 

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Recover R Uno (upcycled cotton)

The first family of Recover Upcycled Cotton yarns blended with virgin fibres for specific performance, comfort and value.

 

 

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Recover R Blue (100% upcycled blend)

A classic blend of Recover Upcycled Cotton and post-consumer RPET bottles, designed for comfort and all types of fashion.

 

 

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Recover R Tech (Upcycled performance)

A high-performance yarn designed for technical applications; wicking, breathable and quick-dry blend of RPET bottles and Recover Upcycled Cotton.

 

 

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Recover R3 (Upcycled Triblend)

A soft and sheer tri-blend of Recover Upcycled Cotton, RPET Bottles and Tencel®, for fashion garments specifically.

 

 

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Recover R Jeans (Upcycled Denim Garments)

The state of the art in garments recycling, Recover R Jeans is made using a na­­­tural blend of Recover Upcycled Cotton from (pre-and-post-consumer) denim garments and organic cotton.

And there you have it. Certified by Global Recycled Standard, as well as OEKO-TEX Standard 100, Recover is trusted worldwide as one of the leading recycled cotton yarn systems, creating long-lasting, high-value, and importantly, lowest-impact products for many life-cycles to come.

 

05/08/19 Sustainable Sequins Made From Trees

For all their glittering appeal, sequins are pretty awful for the environment. Most are made from petroleum plastics and synthetic resin – materials that are not only damaging to natural ecosystems but also to the workers tasked with sewing them on to garments by hand. Given the amount of sequins it takes to make a single garment, it presents a big big problem.

Designer Elissa Brunato is hoping to change this by creating sustainable sequins that shimmer without the use of chemicals. Winner of the Creative Review Innovation Award – a new prize founded in partnership with the MullenLowe NOVA Awards to celebrate creative projects which solve a problem, she developed the Bio Iridescent Sequin, a shimmering bead made from natural cellulose that is more sustainable than regular plastic sequins.

Instead of using petroleum-based plastic, Central Saint Martins graduate Brunato has developed a way of making glittering disc-shaped beads from bioplastic based on cellulose extracted from trees. The cellulose’s crystalline form refracts light and makes the sequins naturally shimmery, without the need for chemical treatment.

With her bio sequins, Brunato is hoping to help tackle a major issue in fashion and textiles and prove that natural materials can be just as beautiful as manmade ones.

 

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Image courtesy: Elissa Brunato

 

Brunato worked with material scientists at RISE Research Institutes in Sweden to develop sequins using cellulose derived from wood. These sequins are as lightweight as their plastic counterparts but are completely biodegradable and can be grown in moulds in as little as 24 hours.

“Cellulose is one of the most abundant polymers available on earth. It is one of the main ingredients plants are constructed from and you can extract it from any type of tree,” Brunato explained to Dezeen recently.

“As the material forms very strong bonds, the sequins are light and use very little cellulose per sequin,” explained Brunato.

 

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Image courtesy: Elissa Brunato

 

“In the future, the cellulose could originate from anything from fruit peels, or algae to used denim and waste paper.”

Brunato developed the Bio Iridescent Sequin after talking to sequin suppliers and realising there was a growing demand for more sustainable materials from fashion brands such as Stella McCartney and the LVMH group, whose brands include Louis Vuitton and Fenty.

She developed the new material with scientists Hjalmar Granberg and Tiffany Abitbol, from the Research Institute of Sweden (RISE).

“For a tree, as in the case of the first sequins I’ve made, the cellulose takes about a hundred years to form sufficiently. This is remarkably short in comparison to crude oil, which takes thousands of years to form,” explained Brunato.

 

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Image courtesy: Elissa Brunato

 

The sequins are currently at the development stage. The next steps include industrial testing for their biodegradable performance.

Dresses embroidered with sequins have seen a resurgence in popularity recently but experts fear that plastic sequins are disastrous for the environment.

As a result, designers are increasingly looking for ways to produce more sustainable materials for the fashion industry. Bolt Threads is a start-up in California that is experimenting with a type of silk made using yeast and sugar, which has been used to make a dress by Adidas x Stella McCartney. While Canadian footwear brand Native Shoes has developed the world’s 100% biodegradable trainer made from eucalyptus and pineapple husk.

So fear not, the future is sustainable!

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