Myth-busting Textile recycling technology & fiber-to-fiber: separating hype from reality

Less than 1% of textiles collected globally are recycled back into new clothing fibers, according to the Ellen MacArthur Foundation's 2025 Circular Fibres Initiative report. Despite a surge of investment and corporate pledges surrounding fiber-to-fiber recycling, the gap between announcement and operational reality remains vast. The global textile recycling market reached $6.3 billion in 2025, with projections pointing to $12.1 billion by 2030 (Grand View Research, 2025). For founders building in this space and investors evaluating opportunities, the persistent myths around textile recycling technology can lead to misallocated capital, flawed business models, and unrealistic timelines. Here is what the evidence actually shows.

Why It Matters

The UK alone generates approximately 921,000 tonnes of textile waste annually, with an estimated 336,000 tonnes going directly to landfill or incineration (WRAP, 2025). The UK Extended Producer Responsibility (EPR) framework for textiles, expected to take effect by 2027, will require brands selling in the UK market to fund the collection, sorting, and recycling of their products at end of life. France's EPR scheme (Refashion) already covers textiles, and the EU Strategy for Sustainable and Circular Textiles is pushing toward mandatory fiber-to-fiber recycling targets of 18% by 2030.

These regulations create urgent demand for scalable recycling infrastructure. H&M, Inditex, and Primark have each committed to incorporating 25 to 30% recycled content in their products by 2030. Yet the supply of recycled fibers suitable for apparel-grade fabrics currently meets less than 5% of global demand (Textile Exchange, 2025). This supply-demand imbalance is driving a wave of capital into recycling startups, but understanding which technologies can deliver at commercial scale and which remain years away from viability is critical for founders, operators, and investors.

Key Concepts

Textile recycling falls into three broad categories. Mechanical recycling shreds fabrics into shorter fibers that can be re-spun into yarn. Chemical recycling dissolves or depolymerizes fibers at the molecular level to produce raw materials equivalent to virgin feedstock. Thermal recycling (pyrolysis or gasification) breaks materials down into energy or chemical building blocks but typically does not preserve fiber-grade quality.

Fiber-to-fiber recycling specifically refers to processes where the output is a fiber suitable for use in new textiles, rather than downcycled into insulation, rags, or industrial wiping cloths. The distinction matters because most textile "recycling" today is actually downcycling: the material is reused but at a lower quality level and cannot re-enter the fashion supply chain.

Feedstock quality is a critical variable. Mono-material garments (100% cotton or 100% polyester) are far easier to recycle than blended fabrics (polycotton, elastane blends), which represent an estimated 60 to 70% of garments currently on the market (McKinsey, 2024).

Myth 1: Fiber-to-Fiber Recycling Is Already Operating at Scale

This is the most consequential misconception. Press releases from major brands and recycling startups often imply that fiber-to-fiber recycling is commercially available today. The reality is that virtually all commercial-scale textile recycling in 2025 remains mechanical, and the output is overwhelmingly downcycled rather than returned to apparel-grade use.

Renewcell, the Swedish chemical recycling pioneer, went into bankruptcy in February 2024 despite having secured offtake agreements with H&M and other major brands. The company's Kristinehamn plant had a nameplate capacity of 60,000 tonnes per year but struggled to reach consistent throughput above 30,000 tonnes. Feedstock contamination, sorting challenges, and the economics of collecting and processing post-consumer textiles at the required purity levels all contributed to the failure (Financial Times, 2024).

Worn Again Technologies in the UK has been developing polyester and cellulose separation technology since 2012 and as of early 2026 is still operating at pilot scale (approximately 1,000 tonnes per year), with a commercial-scale facility planned but not yet constructed. Circ, a US-based chemical recycler, raised $100 million in 2024 but its first commercial plant is not expected to reach full capacity until 2027.

The practical correction: founders and investors should scrutinize throughput data, not nameplate capacity. Ask for consistent monthly output figures, yield rates (input versus usable output), and feedstock rejection rates before modeling commercial economics.

Myth 2: Chemical Recycling Can Handle Any Fabric Blend

Chemical recycling technologies are often presented as a universal solution for the blend problem. In practice, each chemical recycling process has strict feedstock requirements. Glycolysis-based PET recycling works well for polyester-dominant textiles but cannot process cotton or nylon. Dissolution processes for cellulosic fibers (such as Infinited Fiber Company's technology) require high-purity cellulose feedstock and cannot efficiently handle polyester blends above 10 to 15%.

Eastman's methanolysis process, operating at commercial scale in Kingsport, Tennessee, accepts polyester-rich feedstock but requires pre-sorting to remove non-polyester components. The company reported in 2025 that its textile feedstock rejection rate was approximately 35% due to contamination from elastane, coatings, dyes, and non-compatible fiber blends (Eastman, 2025).

The separation of blended fabrics remains an unsolved engineering challenge at scale. Several startups, including BlockTexx in Australia and Syre (a joint venture between Vargas Holding and H&M Group), are developing blend separation technologies, but none has demonstrated commercial-scale throughput exceeding 10,000 tonnes per year as of early 2026.

The practical correction: map your feedstock composition before selecting a recycling technology partner. Mono-material streams have clear pathways; blended fabrics require additional sorting and separation steps that significantly increase processing costs, often by 40 to 80% per tonne.

Myth 3: Recycled Fibers Are Always Cheaper Than Virgin Materials

The assumption that recycled materials should cost less than virgin alternatives because they use "waste" as input is widespread but incorrect for textile recycling. Virgin polyester produced from petroleum feedstock costs approximately $1.00 to $1.20 per kilogram in 2025. Chemically recycled polyester from textile feedstock costs $2.50 to $4.00 per kilogram, depending on feedstock purity and processing technology (McKinsey, 2025).

Mechanical recycling of cotton produces fibers at $1.80 to $2.50 per kilogram compared to $1.50 to $2.20 for virgin cotton. The cost premium exists because collection, sorting, cleaning, and processing post-consumer textiles involves labour-intensive steps that virgin material production avoids. Automated sorting technologies (using near-infrared spectroscopy and AI) are reducing sorting costs, but the economics remain challenging without regulatory mandates or brand premiums.

The practical correction: build business models that account for the green premium and identify buyers willing to pay it. EPR fee structures that make landfill and incineration more expensive will narrow the cost gap over time. In the UK, modelled EPR fees of £0.03 to £0.08 per garment could generate £400 to £700 million annually for recycling infrastructure, according to WRAP (2025).

Myth 4: Sorting Technology Has Solved the Feedstock Problem

Automated sorting using near-infrared (NIR) spectroscopy has advanced significantly. TOMRA and Pellenc ST offer systems that can identify fiber composition at speeds of up to 3 metres per second on conveyor belts. However, NIR has documented limitations: it identifies the dominant fiber on the surface layer but does not reliably detect inner layers, linings, or small-percentage blend components like 3 to 5% elastane (Fibersort Consortium, 2024).

The SIPTex project in Sweden, one of Europe's largest automated textile sorting facilities, processes approximately 24,000 tonnes per year and achieves 90% accuracy for mono-material identification. However, accuracy drops to 65 to 70% for blended fabrics, and the system cannot sort by colour, fabric weight, or contamination level, all of which affect recycling outcomes (IVL Swedish Environmental Research Institute, 2025).

Manual pre-sorting remains necessary for quality-critical recycling streams, adding £80 to £150 per tonne in labour costs in the UK market.

Myth 5: The UK Market Will Have Sufficient Recycling Infrastructure by 2027

Despite the upcoming EPR mandate, the UK currently has no commercial-scale fiber-to-fiber recycling facility. Existing mechanical recycling capacity is concentrated in a handful of operations processing industrial textile waste (cutting-room scraps and manufacturing offcuts) rather than post-consumer garments. The infrastructure gap between collection volumes and processing capacity is widening: collection rates are increasing due to charity partnerships and retailer take-back schemes, but most collected textiles are exported to markets in Africa, Eastern Europe, and South Asia.

The Textiles 2030 initiative, coordinated by WRAP, has attracted commitments from over 130 signatories representing 62% of UK clothing sales by volume. However, investment in UK-based recycling infrastructure has lagged behind targets. Industry estimates suggest £500 million to £1 billion in capital investment is needed to build sufficient sorting and recycling capacity for the UK market alone (WRAP, 2025). As of early 2026, committed investment stands at approximately £120 million.

The practical correction: founders planning UK-based recycling operations should anticipate a 3 to 5 year infrastructure buildout timeline and design modular facilities that can scale incrementally rather than requiring full-capacity operation from day one.

What's Working

Eastman's methanolysis plant in Kingsport is processing polyester-rich textiles at genuine commercial scale and producing ISCC-certified recycled PET resin. The facility demonstrates that chemical recycling of mono-material polyester is technically and commercially viable when feedstock quality is controlled.

Infinited Fiber Company's Infinna technology, which converts cellulose-rich textile waste into a regenerated fiber resembling lyocell, has secured brand partnerships with Inditex, Patagonia, and PVH Corp. The company's first commercial-scale plant in Finland, with 30,000 tonnes annual capacity, is expected to begin production in late 2026.

Refiberd, a California-based startup, has developed AI-powered robotic sorting that combines hyperspectral imaging with machine learning to achieve 95% accuracy on blended fabrics, including detection of minor-percentage elastane content. The technology is being piloted at three facilities in the US and UK.

What's Not Working

Post-consumer collection systems remain fragmented and underfunded. The quality of collected textiles is declining as fast fashion garments with shorter lifespans and lower material quality enter the waste stream. Charity shops report that the proportion of unsellable donations has risen from 30% in 2015 to over 50% in 2025 (Charity Retail Association, 2025).

Chemical recycling economics remain dependent on scale that has not yet been achieved. The Renewcell bankruptcy demonstrated that even with brand offtake agreements, the gap between pilot economics and commercial viability can be fatal without sufficient working capital runway.

Design for recyclability remains the exception rather than the rule. Despite pledges from major brands, less than 15% of new garments launched in 2025 were designed with mono-material compositions or recyclability in mind (Textile Exchange, 2025).

Key Players

Established Companies

• Eastman Chemical: operates commercial-scale methanolysis facility processing polyester-rich textiles into recycled PET resin
• TOMRA: leading provider of automated sorting systems using NIR spectroscopy for textile fiber identification
• Lenzing Group: produces REFIBRA lyocell fibers incorporating cotton scraps from garment production
• Veolia: operates textile waste collection and pre-processing infrastructure across Western Europe

Startups

• Infinited Fiber Company: developing cellulose regeneration technology converting cotton-rich textile waste into Infinna fiber
• Circ: chemical recycling platform separating and recycling polycotton blends into virgin-quality raw materials
• Syre: H&M-backed venture developing polyester-to-polyester chemical recycling at commercial scale
• Refiberd: AI-powered hyperspectral sorting technology for automated fiber identification and separation
• BlockTexx: blend separation technology isolating polyester and cellulose from mixed-fiber garments

Investors

• LSEG (London Stock Exchange Group) Sustainable Finance: supporting green bond issuances for textile recycling infrastructure
• Vargas Holding: co-founding investor in Syre alongside H&M Group
• Breakthrough Energy Ventures: invested in chemical recycling technologies including Circ
• Ax:son Johnson Foundation: lead investor in Renewcell (pre-bankruptcy) and continued investor in Nordic textile recycling ventures

Action Checklist

• Map your textile waste streams by fiber composition, including blend percentages, to identify which recycling pathways are technically viable for your specific feedstock
• Request verified throughput data, yield rates, and feedstock rejection rates from any recycling technology partner before signing offtake agreements
• Model your unit economics using actual recycled fiber pricing ($2.50 to $4.00/kg for chemically recycled polyester) rather than assuming cost parity with virgin materials
• Engage with WRAP Textiles 2030 and relevant industry consortia to stay ahead of UK EPR implementation timelines and fee structures
• Evaluate automated sorting technologies (NIR, hyperspectral) for pre-processing but budget for manual quality checks on blended and contaminated streams
• Design new products with mono-material compositions where functionally possible to ensure recyclability at end of life
• Build relationships with multiple recycling technology providers rather than relying on a single pathway, given the current market volatility

FAQ

Q: Is mechanical or chemical recycling the better investment for textile founders? A: They serve different segments. Mechanical recycling is proven, lower-cost, and viable today for specific applications (insulation, non-woven materials, some yarn). Chemical recycling offers higher-quality output suitable for apparel but remains capital-intensive with limited commercial-scale track record. Most viable business models combine mechanical processing for immediate revenue with chemical recycling partnerships for premium product lines.

Q: How should UK founders prepare for textile EPR? A: Monitor DEFRA consultations on EPR fee structures and obligated producer definitions. Begin collecting data on your products' fiber compositions and end-of-life outcomes now. Build relationships with collection and sorting operators. Budget for compliance costs of £0.03 to £0.08 per garment and explore whether investing in recycling infrastructure could offset those fees through PRN (Packaging Recovery Note) equivalent mechanisms.

Q: Can elastane (spandex) be recycled? A: Not effectively with current commercial technologies. Elastane contaminates both mechanical and most chemical recycling processes. Even at 2 to 5% of fabric composition, elastane can reduce recycled fiber quality significantly. Some emerging technologies (notably from Circ and BlockTexx) claim the ability to separate elastane from blends, but none operates at commercial scale. For founders, this means sourcing elastane-free feedstock or investing in separation pre-processing.

Q: What throughput should investors expect from chemical recycling plants by 2028? A: Realistic expectations based on current trajectories are 10,000 to 50,000 tonnes per year per facility for leading chemical recyclers. The largest announced projects (Eastman's expansion, Infinited Fiber Company's Finland plant, Syre's planned facility) target 30,000 to 50,000 tonnes. Investors should discount nameplate capacity by 30 to 50% for the first 18 to 24 months of operation based on industry ramp-up patterns.

Sources

• Ellen MacArthur Foundation. (2025). Circular Fibres Initiative: 2025 Progress Report. Cowes, UK: Ellen MacArthur Foundation.
• Grand View Research. (2025). Textile Recycling Market Size, Share & Trends Analysis Report, 2025-2030. San Francisco, CA: Grand View Research Inc.
• WRAP. (2025). Textiles 2030: Annual Progress Report and UK Textile Waste Data. Banbury, UK: WRAP.
• Textile Exchange. (2025). Preferred Fiber and Materials Market Report 2025. Lamesa, TX: Textile Exchange.
• McKinsey & Company. (2024). Scaling Textile Recycling: Technology Readiness and Economic Viability. New York, NY: McKinsey & Company.
• Financial Times. (2024). "Renewcell Bankruptcy Exposes Gap Between Recycling Ambition and Reality." Financial Times, February 15, 2024.
• Eastman Chemical Company. (2025). Circular Economy Progress Report 2024. Kingsport, TN: Eastman Chemical Company.
• IVL Swedish Environmental Research Institute. (2025). SIPTex: Automated Textile Sorting at Scale, Results and Learnings. Stockholm: IVL.
• Fibersort Consortium. (2024). Final Report: Automated Sorting of Post-Consumer Textiles. Amsterdam: Circle Economy.
• Charity Retail Association. (2025). Annual Survey of Charity Retail Operations 2024. London: Charity Retail Association.