How Do You Turn Plastic Into Wearable Material

Fast fashion is the second biggest source of environmental pollution on Earth. According to a study, nearly 20 to 25% of waste is created by the fashion industry alone, combined with the plastic industry, this waste percentage reaches up to shocking levels. We all are well aware of the fact that plastic is a non-biodegradable material that we are seeing take over our oceans, beaches - well the whole world!
However, there are now ways through which we can turn plastics into wearable fabric, in our case; swimwear! A lot of ethical fashion brands are making efforts to reduce the single-use plastic pollution by collecting plastic bottles and containers and making clothing out of the yarn created with plastic. And we are one of those brands - yes we know we’re awesome! We use recycled plastic to make our high premium swimming shorts - we’re told that approximately 12 bottles are re-purposed into each pair of shorts.

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How Do You Turn Plastic Into Yarn / Thread?

Step #1 Collect Plastic:

We should all be familiar polyester, right? Well it’s a material which can easily be achieved with the help of plastic. And here’s how:

The first step is collecting plastic from the landfills, oceans, or even cities. It is massively important to ensure this doesn’t harm the natural habitat of animals and marine life. From plastic bottles to containers, all plastic products are gathered up and sent to a plastic processing factory.

Step #2 Break It Down:

Those plastic products are separated, and the recyclable plastic is passed through a chopping machine that breaks everything down into small chips, once all the paper labels are removed. Those chunky plastic chips are further processed to turn them into the machine to make them finer.

Step #3 Melt The Chips:

All the processed, fine plastic chips are thrown into a melting machine that treats the plastic at high heat. The melted plastic is then filtered to remove any kind of impurity. This step is essential to bring the plastic to phase-1 of the recycled fabric making process.

Step #4 Spin It Into Yarn:

Once all the plastic is melted and filtered, it goes through the spinning process. The melted plastic is turned into polyester yarns and spun together with the yarn of choice to make the plastic fabric wearable. The yarn is collected and passed on to the weaving department.

Step #5 Weave The Fabric:

The last step is weaving the polyester into the fabric. You can make anything from jackets to gowns to dresses or even our awesome swimwear from this yarn!

Check out https://www.randycow.com/pages/we-care for everything you need to know about repurposing single-use plastic into wearable fabric.
By following these steps, fashion brands, like Randy Cow, create recycled plastic fabric and help chip into the plastic problem we are facing.

So do your bit today to save the world, and trust yourself to an awesome part of our Swim Shorts :)

And finally, to prove we’re not just trying to jump on the band wagon and that we actually practice what we preach, here is our certification for our fabrics:

In considering materials that could become the fabrics of the future, scientists have largely dismissed one widely available option: polyethylene.

The stuff of plastic wrap and grocery bags, polyethylene is thin and lightweight, and could keep you cooler than most textiles because it lets heat through rather than trapping it in. But polyethylene would also lock in water and sweat, as it’s unable to draw away and evaporate moisture. This antiwicking property has been a major deterrent to polyethylene’s adoption as a wearable textile.

Now, MIT engineers have spun polyethylene into fibers and yarns designed to wick away moisture. They wove the yarns into silky, lightweight fabrics that absorb and evaporate water more quickly than common textiles such as cotton, nylon, and polyester.

They have also calculated the ecological footprint that polyethylene would have if it were produced and used as a textile. Counter to most assumptions, they estimate that polyethylene fabrics may have a smaller environmental impact over their life cycle than cotton and nylon textiles.

The researchers hope that fabrics made from polyethylene could provide an incentive to recycle plastic bags and other polyethylene products into wearable textiles, adding to the material’s sustainability.

“Once someone throws a plastic bag in the ocean, that’s a problem. But those bags could easily be recycled, and if you can make polyethylene into a sneaker or a hoodie, it would make economic sense to pick up these bags and recycle them,” says Svetlana Boriskina, a research scientist in MIT’s Department of Mechanical Engineering.

Boriskina and her colleagues have published their findings today in Nature Sustainability.

Water wick

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A molecule of polyethylene has a backbone of carbon atoms, each with a hydrogen atom attached. The simple structure, repeated many times over, forms a Teflon-like architecture that resists sticking to water and other molecules.

“Everyone we talked to said polyethylene might keep you cool, but it wouldn’t absorb water and sweat because it rejects water, and because of this, it wouldn’t work as a textile,” Boriskina says.

Nevertheless, she and her colleagues tried to make weavable fibers from polyethylene. They started with polyethylene in its raw powder form and used standard textile manufacturing equipment to melt and extrude polyethylene into thin fibers, similar to turning out strands of spaghetti. Surprisingly, they found that this extrusion process slightly oxidized the material, changing the fiber’s surface energy so that polyethylene became weakly hydrophilic, and able to attract water molecules to its surface.

The team used a second standard extruder to bunch multiple polyethylene fibers together to make a weavable yarn. They found that, within a strand of yarn, the spaces between fibers formed capillaries through which water molecules could be passively absorbed once attracted to a fiber’s surface.

To optimize this new wicking ability, the researchers modeled the properties of the fibers and found that fibers of a certain diameter, aligned in specific directions throughout yarn, improved the fibers’ wicking ability.

Based on their modeling, the researchers made polyethylene yarn with more optimized fiber arrangements and dimensions, then used an industrial loom to weave the yarn into fabrics. They then tested the wicking ability of polyethylene fabric over cotton, nylon, and polyester by dipping strips of the fabrics in water and measuring the time it took for the liquid to wick, or climb up each strip. They also placed each fabric on a scale over a single water droplet and measured its weight over time as the water was wicked through the fabric and evaporated.

In every test, polyethylene fabrics wicked away and evaporated the water faster than other common textiles. The researchers did observe that polyethylene lost some of its water-attracting ability with repeated wetting, but by simply applying some friction, or exposing it to ultraviolet light, they induced the material to become hydrophilic again.

“You can refresh the material by rubbing it against itself, and that way it maintains its wicking ability,” Boriskina says. “It can continuously and passively pump away moisture.”

Eco cycle

The team also found a way to incorporate color into the polyethylene fabrics, which has been a challenge, again due to the material’s resistance to binding with other molecules, including traditional inks and dyes. The researchers added colored particles into the powdered polyethylene before extruding the material into fiber form. In this way, particles were encapsulated within the fibers, successfully imparting color to them.

“We don’t need to go through the traditional process of dyeing textiles by dunking them in solutions of harsh chemicals,” Boriskina says. “We can color polyethylene fibers in a completely dry fashion, and at the end of their life cycle, we could melt down, centrifuge, and recover the particles to use again.”

The team’s dry-coloring process contributes to the relatively small ecological footprint that polyethylene would have if it were used to make textiles, the researchers say. The team calculated this footprint by using a life cycle assessment tool commonly used by the textile industry. Taking into account polyethylene’s physical properties and the processes required to make and color the fabrics, the researchers found it would require less energy to produce polyethylene textiles, compared to polyester and cotton.

“Polyethylene has a lower melting temperature so you don’t have to heat it up as much as other synthetic polymer materials to make yarn, for example,” Boriskina explains. “Synthesis of raw polyethylene also releases less greenhouse gas and waste heat than synthesis of more conventional textile materials such as polyester or nylon. Cotton also takes a lot of land, fertilizer, and water to grow, and is treated with harsh chemicals, which all comes with a huge ecological footprint.”

In its use phase, polyethylene fabric could also have a smaller environmental impact, she says, as it would require less energy to wash and dry the material compared with cotton and other textiles.

“It doesn’t get dirty because nothing sticks to it,” Boriskina says. “You could wash polyethyelene on the cold cycle for 10 minutes, versus washing cotton on the hot cycle for an hour.”

“Though a surprising finding, I think the design of experiments and the data are quite convincing,” says Shirley Meng, a materials scientist at the University of California at San Diego, who was not involved in the research. “Based on the data presented in the paper, the particular PE fabric reported here depicts superior properties than those of cotton. The main point is that recycled PE can be used to make textile, a product with significant value. This is the missing piece of PE recycling and circular economy.”

The team is exploring ways to incorporate polyethylene fabrics into lightweight, passively cooling athletic apparel, military attire, and even next-generation spacesuits, as polyethylene shields against the harmful X-ray radiation of space.

The international team included researchers from MIT, Polytechnic University of Turin in Italy, U.S. Army Combat Capabilities Development Command Soldier Center, Dana Farber Cancer Institute, INRIM Istituto Nazionale di Ricerca Metrologica in Italy, Defense Agency for Technology and Quality in South Korea, and Monterrey Institute of Technology and Higher Education in Mexico.

This research was supported, in part, by the U.S. Army Research Office, the

Advanced Functional Fabrics of America (AFFOA) Institute, MIT International Science and Technology Initiatives (MISTI), the MIT Deshpande Center, and the MIT-Tecnológico de Monterrey Nanotechnology Program.

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