Textile
Microplastic Release from Synthetic Textiles and the DPP
Why microplastic release from synthetic textiles is on the EU agenda, what data a passport may carry and how to prepare before any field is mandatory
Polyester, polyamide and acrylic garments shed microfibres with every wash, and part of that material passes through wastewater treatment into rivers and the sea. The EU's 2022 Textiles Strategy named unintentional microplastic release from synthetic textiles as a direct target, and ESPR lists "release of microplastics and nanoplastics" among its ecodesign parameters.
Today there is no mandatory microplastic field in the Digital Product Passport. But it is quite likely that the textile delegated act will address the parameter as a performance or information requirement, and preparing costs little.
Why it is on the EU agenda
The Textiles Strategy framed microplastic release as a problem to be tackled across design, manufacturing, washing and end of life. ESPR moved it into the list of product parameters: a delegated act may set a minimum performance requirement or an information requirement on "microplastic release" for a product group. See ESPR ecodesign performance requirements.
Two confusions are worth clearing up first. The separate EU measure on plastic pellet losses concerns the handling and transport of industrial pellets, not garments. The REACH restriction on intentionally added microplastics (2023) targets particles added to products such as cosmetics and granules; it does not cover fibres that break off in the wash. For textiles the subject is unintentional release.
What determines release
Research points consistently to the same factors, all of which are fixed at the design and manufacturing stage.
| Factor | Increases release | Reduces release |
|---|---|---|
| Fibre form | Staple fibre | Filament yarn |
| Yarn structure | Low twist, bulky yarn | High twist, compact yarn |
| Fabric construction | Loose knit, brushed or fleece surface | Dense weave, flat surface |
| Finishing | Brushing, sanding | Finishes that leave the surface intact |
| Washing conditions | High temperature, long cycle, half load | Low temperature, short cycle, full load |
The table also explains why the passport's care field is connected to microplastics: care instructions do not only protect the fabric, they influence release.
Test methods
Measurement is a young field and still harmonising. The methods used today:
- ISO 4484 series: determination of material loss from fabrics during washing, analysis of the collected material, and measurement on finished products with domestic washing.
- AATCC TM212: a test method for fibre fragment release during home laundering.
- Results are usually reported as loss relative to fabric mass; the unit and the washing programme are inseparable from the report.
Results from different methods may not be directly comparable. That is why the passport must carry the method and conditions, not just the number; see primary vs secondary data.
What a passport could carry
If the delegated act defines a class or threshold, the field structure will change; as long as the raw result and method are recorded, the class can be derived later. A reasonable structure today:
- Fibre composition and synthetic share (already mandatory); see fibre composition in textiles and the DPP.
- Fabric construction and whether the surface is brushed or fleeced.
- Shedding test: method, result, unit, washing programme, laboratory, date, fabric quality code.
- Care guidance: low temperature, full load, washing bag or filter.
In the JRC candidate list the environmental fields sit in the second phase; see textile DPP data points. Testing happens at fabric-quality level while the passport lives at model level. The right design is a model passport that references a fabric quality record; see choosing DPP granularity. The same design serves durability tests; see textile durability tests and DPP data.
How to prepare
- List your fabric qualities and put the high-synthetic, brushed ones first.
- Commission one test per quality, not per SKU.
- Tie the result to the fabric quality code and let the passport reference the quality from the SKU.
- Review care instructions towards lower release.
- Follow the draft textile delegated act and the JRC study; see what a JRC preparatory study is and what a delegated act is.
For the general logic of delegated acts, see the ESPR guide.
Frequently asked questions
Is microplastic data mandatory in the passport?
No, not yet. ESPR lists it as a parameter; the textile delegated act (indicative 2027) will decide in what form it is requested.
Which microplastic test method should I use?
The ISO 4484 series or AATCC TM212. Ask your buyer which one they accept, and do not compare results across methods.
Do cotton products need microplastic data too?
The subject targets synthetic fibre. Blends such as cotton-polyester may be relevant because of their synthetic share; a purely natural-fibre product is not expected to need it.
