#Sustainability

2020-04-08

Merino wool does not release microplastics into oceans, new study finds

Ground-breaking new research from The Woolmark Company has found that Merino wool does not contribute to the issue of microplastics in our oceans.

The scientific study - titled Microfibre Pollution and the Marine Biodegradation of Wool - has found that both untreated and machine washable wool readily biodegrade in marine environments, while synthetic fibres do not. The study also found the machine washable wool actually biodegrades at a faster rate than untreated wool fabrics and there was no evidence the treated wool’s polyamide resin coating added to microplastic pollution.

Previous estimates suggest as much as 20 per cent to 35 per cent of all primary source microplastics in the marine environment are from the use of synthetic clothing and a single polyester fleece garment can produce more than 1900 microfibres per wash.

In this latest study researchers compared the biodegradability of the two types of Merino wool in sea water to the biodegradability of viscose rayon, polyester, nylon and polypropylene. Residues were examined using scanning electron microscopy and energy-dispersive X-ray spectroscopy. All fabrics were washed repeatedly before testing to simulate a partial garment lifetime. The rate of biodegradation was then compared to that of a substance known to biodegrade readily, kraft paper pulp.

Scientists found untreated wool biodegraded at 20.3 per cent the rate of the pulp and the machine-washable wool biodegraded more than three times as quickly, at a rate of 67.3 per cent – the fastest of all fabrics.

At the tail-end was Nylon, biodegrading at a rate of just 0.8 percent, followed by polypropylene and polyester.

“Our research into wool and microplastics began back in 2016 when we investigated the current state of knowledge concerning microplastic pollution, focussing on microfibres from textiles,” explains The Woolmark Company Managing Director Stuart McCullough. “This initial body of research began the process of improving methodological development to account for microfibre release during the use phase in the Lifecycle Assessment of clothing.

“This latest scientific study is a significant addition to the body of research investigating the damage certain textiles cause to our environment. Wool has long been heralded the original eco fibre, but concerns had been raised about the machine-washable finish applied to wool and whether it added to the microplastic problem, so we wanted to clarify that issue. During these ever-changing troubled times it’s important to consider how well-intentioned consumers can make purchasing decisions that help look after the health of the environment. Choosing natural fibres, such as Merino wool is an important place to start.”

Merino wool moves into China’s high-performance sportswear market

China’s leading sportswear brands are beginning to treat Merino wool not as a lifestyle material, but as a performance input as natural fibres move from the margins of sportswear into elite technical applications. That shift is increasingly evident in the material strategies of major domestic groups such as ANTA.

Jeanologia urges industry to accelerate PP Spray phase-out following ZDHC Watchlist update

Potassium permanganate has officially entered the Chemical Watchlist of the ZDHC Foundation, signaling increased scrutiny and potential phase-out of one of the most hazardous chemicals still used in denim finishing. The inclusion confirms an industry shift that Jeanologia anticipated more than a decade ago.

Global Standard strengthens presence in Southeast Asia at VIATT 2026

Global Standard will participate in the Vietnam International Trade Fair for Apparel, Textiles and Textile Technologies (VIATT) 2026, organized by Messe Frankfurt, the first textile trade show in the APAC region this year. Global Standard will host a booth and Felica Shi will lead a seminar on Global Organic Textile Standard (GOTS). The trade fair will take place from February 26 to 28, 2026, in Ho Chi Minh City, Vietnam.

VAUDE eliminates PFAS from all products

PFAS (per- and polyfluoroalkyl substances) are now detectable worldwide – in drinking water, soil and the human body. These so-called “forever chemicals” are considered hazardous to health and potentially carcinogenic, as they do not break down and remain in the environment permanently. Despite these risks, PFAS are still used in a wide range of products. More than 15 years ago, VAUDE made a strategic decision to gradually eliminate PFAS from all product categories.

Esquel Group adds two new extra-long staple cotton varieties approved

Esquel Group’s Xinjiang Research & Development Center has successfully developed two new Sea Island cotton (Extra-Long-Staple cotton, ELS cotton) varieties named “Yuan Loong 37” and “Yuan Loong 42,” which have been officially approved and granted registration numbers. Both varieties have also obtained Plant Variety Rights certificates, marking another significant breakthrough for the Group in cotton breeding and commercial application.

Itema America acquires Palmetto Loom Reed, strengthening local manufacturing and service in the U.S.

Itema America, the U.S. subsidiary of Italy-based Itema Group, has acquired – through an Assets Purchase Agreement – Palmetto Loom Reed, a Greenville, South Carolina-based manufacturer of weaving reeds and one of the last remaining domestic producers of these precision components in the United States.

Reju announces site selection for French Regeneration Hub in Lacq advancing Europe’s circular textile infrastructure

Reju, the textile-to-textile regeneration company based in France, announces the site selection for an industrial sized Regeneration Hub, in Lacq, in the Pyrénées-Atlantiques, on the Induslacq platform. Reju, a Technip Energies owned company, is deepening its roots in France through the development of this new Regeneration Hub.

lululemon introduces Unrestricted Power™ — A new sensation for strength training

lululemon (NASDAQ: LULU) has unveiled Unrestricted Power™, a new innovation platform engineered for heavy lifts and demanding gym sessions. The assortment, which launches in North America, is backed by thousands of hours of research and development, providing secure support without compromising comfort and mobility, enabling a distraction-free fit built to match every move.