#Research & Development

2023-02-23

Textile microplastics: New standard assesses fibre release, biodegradation and ecotoxicity for the first time

Regarding environmental impact, the biodegradability of fibres in wastewater plays a decisive role. The biodegradability is determined after a defined period, by measuring fibre residues in the wastewater. © Hohenstein

Testing service provider Hohenstein has worked with the project partners Trigema, Freudenberg, DBL ITEX and Paradies to create a new standardized test method for detecting and classifying the environmental effects of textiles during washing. DIN SPEC 4872 combines analysis of fibre release, biodegradability and ecotoxicity. The test method according to DIN SPEC 4872 shows how many fibres are released during textile laundering, how well these fibres degrade in wastewater and how harmful the fibre residues are to the environment.

Studies have shown that washing textiles releases microfibres into the wash water, which cannot be sufficiently retained by wastewater treatment plants. Synthetic fibres pose the greatest risk to the environment because of their longevity and inability to biodegrade. However, Hohenstein project manager Juliane Alberts does not give the all-clear for biodegradable fibres and natural fibres: "Biodegradability alone does not mean that pure natural fibres, for example, are completely harmless to the environment. They, too, remain in ecosystems until they completely degrade and can also have a negative impact. In addition, additives, auxiliaries or finishes used in textile production can further slow the degradation process and leach into the environment."

The test method according to DIN SPEC 4872 shows how many fibres are released during the washing of textiles, how well these fibres degrade in wastewater and how harmful the fibre residues are to the environment. © Hohenstein

The new standard enables textile producers and suppliers to test, evaluate and compare products for fibre release during washing and environmental impact. Juliane Alberts sees this systematic evaluation as an opportunity for the textile industry to take the initiative on environmental impact: "Our reliable data can be used as a basis for more targeted product development. This is a way to actively and consciously control further environmental pollution."

Detailed information is available at www.hohenstein.com/din-spec-4872

A good sign: The green color and healthy development of duckweed, a particularly sensitive model organism for higher aquatic plants, proves the ecotoxicological harmlessness of its environment. © Hohenstein

A new standard to combat plastic waste in forests

With DIN SPEC 35808 “Tree Shelter for Forestry Applications,” the testing and research service provider Hohenstein, in collaboration with Rottenburg University of Forestry, as well as forestry authorities and industry partners, has established a clear framework for bio-based and fully biodegradable tree shelters. The pre-standard defines requirements and practical testing methods designed to reduce plastic waste in forests and strengthen the long-term protection of soil and the environment.

Hohenstein publishes 2025 Sustainability Report

The testing and research service provider Hohenstein has published its latest sustainability report, outlining key progress and strategic initiatives. The report focuses on ambitious CO₂ reduction targets, the company’s new mission statement and the systematic expansion of sustainable services for customers worldwide.

New DIN SPEC assesses environmental impact of textile fragments in soil

Textile products made from synthetic fibres, finished fabrics or dyed materials release fibre fragments into the environment at every stage of their life cycle. With the new DIN SPEC 19296, Hohenstein has developed a standardised testing method to analyse how these fragments behave in soil under natural conditions. Until now, little was known about their environmental behaviour or potential ecological effects once released.

An eco-friendly alternative to fluorocarbon treatments

Protective and outdoor clothing derives its durable water-, dirt- and oil- repellent properties from the application of fluorinated polymers or per- and polyfluorinated low-molecular- weight chemicals (PFCs). The beneficial properties thus achieved on textiles are offset by environmental and human health risks. For manufacturers of sports, medical, protective and automotive textiles, researchers at the Sächsisches Textilforschungsinstitut e.V. and the Leibniz Institute for Polymer Research have developed liquid-applied dispersions and solutions to functionalise textiles without the use of fluorine.

180 years of TESTEX: From Zurich silk testing to global certification

For 180 years, TESTEX has developed alongside the textile industry while maintaining the same underlying purpose: creating trust through independent and reliable measurement. Founded in Zurich in 1846 as the Zurich Silk Conditioning Institute, TESTEX has grown from a local institution serving the silk trade into an international Swiss testing and certification institute for textiles and leather.

Moving Advanced Recycling from Innovation to Implementation

The Advanced Recycling Conference 2026 explores technologies, markets, financing and scale-up of innovative recycling solutions for waste streams including mixed plastic waste, textiles and PVC. Europe’s chemical and materials sector faces growing pressure to close carbon loops, strengthen raw-material safety and resilience and meet increasingly ambitious EU recycling targets. Against this backdrop, the Advanced Recycling Conference (ARC) will bring together industry leaders, technology providers, researchers, innovators and policy-makers on 17–18 November 2026 in Cologne, Germany.

New Cotton Review examines competitiveness, market risk, and opportunities

From moving record volumes of Brazilian cotton to market, to managing price volatility, unlocking Ethiopia’s production potential, and strengthening African textile trade, the latest edition of Cotton: Review of the World Situation examines some of the most consequential opportunities and challenges facing the global cotton industry.

Long John puts KARL MAYER's RDJ 7/3 into operation and strengthens its position as a market leader

KARL MAYER has just unveiled its new RDJ 7/3 Jacquard Double Needle Bar Raschel Machine in the international trade press, and the innovation is already causing a stir in the market: The Long John Group, a leading manufacturer of performance footwear fabrics and a long-standing partner of renowned brands, was the first customer to invest in the new machine and celebrated its official launch at its Indonesian plant on August 20.

Patricia Urquiola in the Trend Space: Evolution and new design elements for Heimtextil 2027

At Heimtextil 2027, the Trend Space brings the Heimtextil Trends 27/28, curated by Alcova, to life. Within this framework, Heimtextil’s collaboration with Patricia Urquiola continues into its third year in 2027. In the Trend Space, the architect and designer presents three sculptures: alongside the familiar element “Bambi”, Urquiola is developing two new pieces specifically for Heimtextil. Thereby, she offers her unique interpretation of the trend theme “The Performance of Everyday Living”.