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Natural fibres unite to help the environment

Wednesday, 21 February 2018

Australian Wool Innovation (AWI) and the Cotton Research and Development Corporation (CRDC) have joined forces to help demonstrate the eco-credentials of natural fibres in a world of increasing concern about the effect on the environment of synthetic textiles.

Wool is naturally biodegradable as illustrated through a series of factsheets developed by AWI.

Australian Wool Innovation (AWI) and the Cotton Research and Development Corporation (CRDC) have joined forces to help demonstrate the eco-credentials of natural fibres in a world of increasing concern about the effect on the environment of synthetic textiles.

Two comprehensive literature reviews on microplastic fibres and the use-phase of apparel have recently been published by Consumption Research Norway (SIFO).

They are free to download here:

Microplastic pollution from textiles: A literature review

Use phase of apparel: A literature review for Life Cycle Assessment with focus on wool

Conducted by Adjunct Associate Professor Beverley Henry of the Queensland University of Technology along with senior researcher Dr Kirsi Laitala and Professor Ingun Grimstad Klepp of SIFO, the new reports shed light on the current knowledge of the impact of synthetic fibres on the environment in comparison to natural fibres.

Angus Ireland, AWI's Program Manager for Fibre Advocacy and Eco Credentials, says:

"Rapidly emerging evidence is showing microplastic fibres from textiles pose a great risk to the environment due to both physical and chemical impacts. Natural fibres such as wool do not pose this risk because they readily biodegrade and consequently don't accumulate in the environment. This important difference between natural and synthetic fibres needs to be accounted for in Life Cycle Assessment for it to be credible and scientifically defensible."

Man-made synthetic materials are becoming an increasing problem both on land and at sea.

It is estimated that as much as 20-35 per cent of all primary source microplastics in the marine environment are fibres from synthetic clothing and this amount is increasing. There is now significant evidence of the negative impacts on aquatic habitats and marine organisms from this pollution, while the full extent of the impact on human health is yet to be known.

The 50-page review Microplastic pollution from textiles published by SIFO in both English and Norwegian, details the cause of microplastic pollution and offers recommendations to consumers and the textile industry on measures to reduce microplastic pollution.

The full extent of the detrimental effect of synthetic microfibres on the environment is yet to be fully understood but the current research suggests physical, chemical and biological impacts are felt throughout the food chain including leaching of toxic chemicals and eventual starvation of host organisms.

Research is yet to clarify how the consumption of contaminated organisms such as shellfish may affect humans.

The review recommends increased use of natural non-synthetic materials in global textile markets since these fibres biodegrade in marine as well as terrestrial environments and therefore do not cause microplastic pollution.

A series of factsheets has been created to illustrate this.

The second literature review, Use phase of apparel, is part of an increased effort to include this important stage in Life Cycle Assessment. Environmental ratings agencies for apparel currently only assess the production phase of textiles which means that the way in which a garment is used and its eventual disposal is not yet considered when assessing the fibre's environmental impact.

The review confirms that in the use-phase, in comparison to synthetic garments wool clothes are washed at lower temperatures, washed less often, are less likely to be tumble-dried, have on average a longer life-span and are more likely to be recycled. This comparison contributes to the understanding of wool as an environmentally responsible fibre in comparison to its synthetic counterpart.

Both papers align with current concerns about society's trend towards disposable clothing or "fast fashion" and build on the argument for buying more sustainably, buying less often and buying apparel made from naturally biodegradable fibres.

Dr Beverley Henry says, "the reviews showed that clothing made of different materials are used and reused differently, and therefore fibre content is a relevant category to be taken into account. It is particularly relevant in assessment of potential for microfibre pollution since natural fibres are biodegradable and do not contribute to accumulation of plastics in the environment. Without intervention the growing production, consumption and waste generation of plastics together with their resistance to breakdown means that their abundance is set to increase."

Marius Cuming
Australian Wool Innovation, Corporate Communications
Mobile: +61 400 305 716

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