NEWS RELEASE

Teijin Frontier’s New Breathable Material Adapts to Perspiration
Tokyo, Japan, December 7, 2021 --- Teijin Frontier Co., Ltd., the Teijin Group's fibers
and products converting company, announced today that it has developed a highly
comfortable knitted fabric that responds to perspiration by changing its structure
three-dimensionally, thereby increasing breathability and eliminating the feeling ofstuffiness.
Teijin Frontier will market its new self-adjusting fabric as a core product for year-roundsports and outdoor use beginning in fiscal 2023. Wide ranging of applications will include
casual and functional apparel and uniforms as well as various materials. The company
expects to target sales of 250 thousand meters in fiscal 2024.

Sample product made with new self-adjusting knitted fabric

Teijin Frontier’s new self-adjusting fabric has a solid knitted fabric structure that changes
shape in three directions in response to perspiration thanks to its specially textured,side-by-side (S/S) composite yarn made from two types of polymers, each with different
hygroscopicity. The yarn’s structure also includes a coiled crimp.
Adaptive changes in crimps and stitch opening/closingAdaptive changes due to perspiration

Technical properties of new adaptive fabric- Side-by-side composite yarn made with two polymers, each withdifferent hygroscopicity
Spinning- Specially textured yarn combines side-by-side composite andultra-fine crimped yarns- Special solid knitted fabric with a three-dimensional yarn structure
Knitting- Excellent wind protection due to high-density knitted design(ventilation volume: 50cc/cm2/sec or less)- Dyeing technology contributes to adaptive function
Dyeing- Quality-control technology enhances breathability, dimensionalchanges and quality
Features of new adaptive fabric- Highly adaptive breathability (about double that before sweating)- Minimal dimensional changes (5% or less both vertically andhorizontally)
Functionality- Excellent wind protection (ventilation rate of 50cc/cm2/sec or less)- Soft texture and attractive appearance- Combines with materials offering balanced functions or those forpreventing sweat stains, sweat-induced chill or body odor
- Combines with recycled polyester
Eco-friendliness- Adaptive breathability contributes to energy saving
In 2009, Teijin Frontier began offering a S/S composite yarn made with polymers ofvarying hygroscopicity and fabric in which the stitches open and close in response toperspiration. However, since the fabric’s stitches open wide in the presence ofperspiration, causing clothing sizes to change significantly, it was necessary to limit stitch
opening to a practical level for commercial applications.

About the Teijin Group
Teijin (TSE: 3401) is a technology-driven global group offering advanced solutions in thefields of environmental value; safety, security and disaster mitigation; and demographic
change and increased health consciousness. Originally established as Japan's first rayon
manufacturer in 1918, Teijin has evolved into a unique enterprise encompassing threecore business domains: high-performance materials including aramid, carbon fibers andcomposites, and also resin and plastic processing, films, polyester fibers and products
converting; healthcare including pharmaceuticals and home healthcare equipment forbone/joint, respiratory and cardiovascular/metabolic diseases, nursing care andpre-symptomatic healthcare; and IT including B2B solutions for medical, corporate andpublic systems as well as packaged software and B2C online services for digitalentertainment. Deeply committed to its stakeholders, as expressed in the brandstatement “Human Chemistry, Human Solutions,” Teijin aims to be a company that
supports the society of the future. The group comprises more than 170 companies andemploys some 20,000 people across 20 countries worldwide. Teijin posted consolidated
sales of JPY 836.5 billion (USD 7.7 billion) and total assets of JPY 1,036.4 billion (USD9.5 billion) in the fiscal year that ended on March 31, 2021.
Press Contact
Corporate Communications
Teijin Limitedpr@teijin.co.jp