Teijin Frontier expands OCTAIR™ insulation fiber capacity at Matsuyama Plant

Key highlights
  • Investment of several hundred million yen to install pre-processing, spinning and drawing equipment at Matsuyama Plant in Ehime Prefecture.
  • Production using the new equipment is scheduled to begin in March 2027.
  • OCTAIR™ has a hollow, eight-fin cross-section with radiating protrusions and offers thermal performance equivalent to down of the same weight.
  • Initial output will be several hundred tons per year, planned to rise to approximately 1,000 tons annually by 2030; mass production will include PTT and recycled polyester variants.

Capacity expansion and schedule

Teijin Frontier will install new pre-processing, spinning and drawing equipment for OCTAIR™ polyester insulation fiber at its Matsuyama Plant in Ehime Prefecture, an investment of several hundred million yen. Production using the new equipment is scheduled to begin in March 2027.

Product structure and performance

OCTAIR™ features a hollow, eight-fin cross-section with radiating protrusions. The voided structure provides loft and light weight, with thermal insulation performance equivalent to that of down of the same weight, along with a supple, soft texture, dimensional stability and a smoother blowing-in process versus conventional polyester fiberfill.

Materials, volumes and market response

Developed in 2024 and test marketed, OCTAIR™ will be produced in several material variants, including products incorporating polytrimethylene terephthalate (PTT) fibers and recycled polyester. Initial production volume will start at several hundred tons per year, with a planned increase to approximately 1,000 tons annually by 2030 to supply growing demand for down alternatives.

Source: Teijin

chemXplore Weekly

The week’s project milestones and project news from the chemical industry, free every Wednesday.

Free. One email a week. Unsubscribe any time.

Related articles

1 October 2026
Teijin completes integration of Teijin Frontier and Asahi Kasei Advance

New merged textile/materials unit formed with 80/20 ownership split, 2.0 billion yen capital and Osaka base; integration already reflected in FY ending March 31, 2027 forecast.

2 June 2026
Teijin Frontier develops polyester textile combining heat retention and high breathability

Polyester textile pairs bulky raised nap for dead-air warmth with large-knit voids that double breathability and crimped-yarn moisture wicking; aimed at fall/winter 2027 sports and outdoor apparel.

18 May 2026
Teijin Frontier and Asahi Kasei Advance form TA Frontier

Merged firm launches Oct 1, 2026; ownership split 80/20. It combines materials technologies and marketing across textiles, industrial, building and resins for sustainable growth.

1 December 2025
Asahi Kasei and Teijin Frontier Merge for Sustainable Growth

The merger aims to enhance competitiveness by combining business platforms, sales networks, and customer bases, focusing on sustainable growth and value creation.