#Recycling / Circular Economy

2022-05-25

Teijin Frontier develops new chemical recycling technology for polyester fibers

Teijin Frontier Co., Ltd., the Teijin Group's fibers and products converting company, announced today that it has developed a recycling technology using a new depolymerization catalyst to recycle colored polyester fibers without losing the quality of polyester fibers made from petroleum-derived raw materials. The new technology also lowers environmental load compared to conventional recycling.

The technology produces recycled materials equivalent to petroleum-derived polyester raw materials. Using a new depolymerization catalyst for the conventional bis (2-hydroxyethyl) terephthalate (BHET) method, spent polyester is chemically decomposed and purified back into BHET intermediate raw material before being repolymerized into polyester. The production process is simpler than using dimethyl terephthalate (DMT) and ethylene glycol in a transesterification reaction, so recycling is achieved with less energy consumption. Also, the new technology reuses resources such as wastewater, waste liquid and depolymerization catalysts.

Teijin Frontier will launch a pilot facility at its Matsuyama Plant this month and proceed with verification tests. It also will continue developing recycling technologies to improve the quality of recycled polyester raw materials and reduce environmental load. Aiming to realize a sustainable value chain for a circular economy, Teijin Frontier is working to establish a mechanism for sustainable fiber-to-fiber recycling of polyester in cooperation with partner companies and consortiums both in Japan and global.

Compared to material recycling, which melts and molds used products including polyethylene terephthalate (PET) bottles, DMT-based chemical recycling results in less deterioration of quality due to recycling, but its energy consumption is high. The BHET method is often used when recycling from colorless and transparent PET bottles as new PET bottles, and also its energy consumption is lower compared to the DMT method, but there were difficulties in producing high-quality recycled polyester raw material because foreign substances, such as dyes used for colored polyester fibers, could not be completely removed, resulting in discolored recycled raw material.

Teijin Frontier, guided by its THINK ECO® environmental initiative, is striving to improve its environmental value, including through eco-friendly plant management and the development of greener materials and products for applications ranging from clothing to industrial materials.

Teijin announces availability of DPP-compliant products aligned with Europe’s ESPR Environmental Regulation

Teijin Limited announced today that it has started rolling out initiatives to enable aramid fibers and carbon fibers to be accompanied by Digital Product Passport (DPP) technology, which enhances supply chain transparency by verifying the origins of materials and supporting sustainability claims. The company is using the supply chain traceability system from Netherlands-based Circularise B.V., in which Teijin has invested since November 2024, to develop DPPs for each product.

Teijin Carbon showcases new eco-friendly Tenax Next™ R2S 513 6mm short carbon fiber at JEC World 2025

Teijin Carbon, a leading manufacturer of carbon fiber products, is presenting its latest development in sustainable materials at JEC World 2025 (hall 6, G22). New Tenax Next™ R2S 513 6mm is a short carbon fiber product in rice-shaped form for reinforcing thermoplastic compounds that not only offers exceptional performance characteristics but also reinforces the company’s commitment to environmental responsibility and circularity.

Teijin to invest in Circularise B.V. and adopt its supply chain traceability platform to promote the Circular Economy

Teijin Limited announced today that it will invest in Circularise B.V., a company based in The Hague, Netherlands, which develops product traceability management systems using blockchain technology. Teijin will also implement Circularise’s software to improve visibility into its global supply chain. Circularise’s proprietary “Smart Questioning”(*) solution, which utilizes Zero-Knowledge Proof (ZKP) technology, provides both anonymity and transparency to ensure a highly reliable product traceability system.

Reju expands textile-to-textile recycling network with six international fabric manufacturers

Reju, a textile-to-textile regeneration company, is expanding its industrial network through collaborations with six fabric manufacturers in Europe and the Americas. The initiative aims to accelerate the integration of regenerated polyester into textile manufacturing and support the development of finished fabrics for commercial applications.

Trützschler expands technical service capabilities for spinning mills in Pakistan

Faster support, shorter downtime and advanced repair capabilities: customers across Pakistan can now benefit from the Trützschler Service Station at its new location in Lahore. By combining Trützschler service expertise with state-of-the-art diagnostic equipment, the new facility helps spinning mills resolve technical issues more quickly and maintain reliable production.

Stäubli to introduce new S3292 dobby for high-speed weaving at ITME India 2026

Stäubli will introduce its new S3292 dobby at ITME India 2026, taking place from December 4 to 9 at the India Expo Centre & Mart in Greater Noida, Uttar Pradesh. Designed for high-speed air-jet weaving, the new machine will be among the highlights of the company's presentation, which also includes warp preparation systems, cam motions, Jacquard technologies and digital services.

DITF develops bio-based binding fibers for wood-fiber insulation materials

As part of the CelluWoodFlex project, the German Institutes of Textile- and Fiber-Research in Denkendorf (DITF) are developing bio-based cellulose ester fibers as alternative binding fibers for flexible wood fiber insulation materials. In addition to the spinning process and the production of suitable staple fibers, the institute is also investigating how wood and cellulose fibers can be separated and recycled at the end of their useful life.

Magnera highlights HighPleat™ filtration media technology at FiltXPO 2026

At FiltXPO 2026, held on October 28–29 at the Minneapolis Convention Center in Minneapolis, Minnesota, Magnera highlighted advances in air filtration media architecture, with a particular focus on its HighPleat™ platform for MERV 8–10 applications. The technology combines a lofted fiber structure with optimized pore architecture to address the challenge of balancing filtration efficiency, airflow resistance and contaminant-holding capacity.

Ahlstrom expands depth filtration media production capacity at US facility

Ahlstrom has completed a major investment in its Kingston manufacturing facility in New York, USA, expanding production capacity for high-performance depth filtration media. The modernization of Line 3 is designed to improve manufacturing efficiency, enhance quality control and increase flexibility in producing different product widths.