[pageLogInLogOut]

#Recycling / Circular Economy

Lenzing, Kaihara Denim and ROICA™ by Asahi Kasei launch SAISEI Collection, premium stretch denim line made of recycled materials

The Lenzing Group, a leading supplier of regenerated cellulosic fibers for the textile and nonwovens industries, ROICA™ by Asahi Kasei, a pioneer in premium stretch fiber, and Kaihara Denim, the world-renowned Japanese denim manufacturer, join forces for the first time to co-create a premium stretch denim collection, “SAISEI Collection.”
  • Made of recycled materials with exceptional softness, the stretch denim collection unleashes endless denim design possibilities from everyday chic to workwear with three distinct stretch denim styles
  • The new collection will debut globally at Kingpins Amsterdam, October 23–24, 2024
  • The unprecedented collaboration combines Kaihara Denim’s premium Japanese denim craftsmanship, resource-efficient LENZING™ ECOVERO™ fibers with REFIBRA™ technology and sustainable yet durable ROICA™ EF yarn by Asahi Kasei


SAISEI Collection by Lenzing, Kaihara Denim and ROICA™ by Asahi Kasei © 2024 kakel Tetsuya Mukume
SAISEI Collection by Lenzing, Kaihara Denim and ROICA™ by Asahi Kasei © 2024 kakel Tetsuya Mukume


The strategic partnership is well-placed to offer the international market a higher composition of recycled materials in denim. Blending LENZING™ ECOVERO™ branded viscose fibers with REFIBRA™ technology(1) with ROICA™ EF recycled stretch yarn and entrusting them with Kaihara Denim’s renowned denim craftsmanship, the high-quality denim collection is brought to light. It will make its first appearance at Kingpins Amsterdam, October 23–24, 2024.

“Through this partnership with Kaihara Denim and ROICA™ by Asahi Kasei, we are taking bold steps to drive denim circularity empowered by joint expertise and devotion,” said Dennis Hui, Global Business Development Manager, Denim at Lenzing. “The synergy between ROICA™ EF yarn, LENZING™ ECOVERO™ fibers with REFIBRA™ technology, and Kaihara Denim’s exceptional craftsmanship has given life to premium, resource-efficient denim fabrics that have sustainability, performance, and style at heart. This partnership not only underscores the shared commitment between Lenzing and our partners to create excellent products while doing better for the environment4, but also serves as a catalyst for driving the transformation towards low impact practices4 across the denim value chain and beyond.”

Dennis Hui, Global Business Development Manager, Denim at Lenzing © 2024 Lenzing
Dennis Hui, Global Business Development Manager, Denim at Lenzing © 2024 Lenzing


Weaving the future of denim with collective innovation

The new denim collection boasts a special fabric composition, making the most of ROICA™ EF yarn and LENZING™ ECOVERO™ fibers with REFIBRA™ technology thanks to their resource-efficient attributes. ROICA™ EF, made of pre-consumer recycled content as well as featuring excellent stretchability, is integral to the flexibility, and comfort of the fabric. On the other hand, LENZING™ ECOVERO™ fibers with REFIBRA™ technology, comprises up to 20% of post-consumer textile waste, which is sourced from cellulose-rich materials or polyester-cotton blends, supporting natural softness to the denim fabric.

“Our vision for sustainability at Asahi Kasei is to achieve zero emissions and seek to recycle all of our industrial waste,” said Hiroaki Shinohe, Chief Marketing Officer of ROICA Europe at Asahi Kasei. “Our innovative ROICA™ EF yarns, which is 30% lower in CO2 emissions compared to regular yarns, exemplify this dedication. By partnering with Lenzing and Kaihara Denim on a recycling concept that gives new life to pre-used materials, we are able to leverage our collective expertise in sustainable stretch fabrics. We are thrilled that the incorporation of LENZING™ ECOVERO™ with REFIBRA™ technology and Kaihara Denim’s premium denim craftsmanship can provide an exceptional fabric that meets the growing consumer demand for environmentally consicous, comfortable denimwear.”

Redefining denim applications for high-performing, eco-conscious fashion

The collection offers three distinct denim fabrications – super stretch (Monster Stretch by Kaihara Denim), comfort stretch, and low stretch (selvedge denim) – each crafted with Kaihara Denim’s artisanal expertise using the meticulous blend of LENZING™ ECOVERO™ with REFIBRA™ technology and ROICA™ EF. This innovative denim fabric features a subtle bulkiness and reduced drape, delivering a unique hand feel. The versatility of the new denim fabric opens a world of possibilities for fashion designers and brands, empowering them to create stylish, resource-efficient garments that range from everyday chic, casual wear to workwear.

“As Lenzing’s long-standing partner, we are thrilled to be part of this transformative journey with ROICA™ by Asahi Kasei that embodies our concerted efforts towards driving positive change across the global denim landscape,” said Hirofumi Inagaki, Executive Officer, General Manager of Sales Department at Kaihara Denim. “Our long history and established expertise in premium denim manufacturing allow us to unlock the full potential of LENZING™ ECOVERO™ with REFIBRA™ technology and ROICA™ EF, resulting in this innovative, resource-efficient denim collection. Together, we are reshaping the future of sustainable denim applications, both casual and formal, paving the way for a more circular fashion value chain.”

Hiroaki Shinohe, Chief Marketing Officer of ROICA Europe at Asahi Kasei © 2024 Lenzing
Hiroaki Shinohe, Chief Marketing Officer of ROICA Europe at Asahi Kasei © 2024 Lenzing


The new denim collection will be showcased at the Lenzing booth (no. 12 in blue zone) and ROICA booth (no. 10 in yellow zone) during Kingpins Amsterdam, October 23–24, 2024.



More News from Lenzing

#Man-Made Fibers

Fourth CDP Triple “A” Rating reinforces Lenzing’s leadership in sustainability

Lenzing AG has once again been recognized by the global nonprofit organization CDP for its transparent reporting performance in the areas of climate change, forests, and water security. This places Lenzing among only 23 companies worldwide that made it on the “Corporate A List” across all three categories in 2025 – out of more than 22,000 companies that disclosed their environmental data. For Lenzing, this marks the fourth time the company has achieved this prestigious triple‑“A” rating.

#Man-Made Fibers

Lenzing AG announces new leadership and establishment of Executive Committee

Lenzing AG announced that Rohit Aggarwal, Managing Board Member and Chief Executive Officer of Lenzing AG, has informed the Supervisory Board of his decision to resign from his position due to personal reasons, effective 31 January 2026. To support a smooth transition, Mr. Aggarwal will remain with Lenzing AG as an advisor to the company until end of September 2026. The Supervisory Board expresses its appreciation for Mr. Aggarwal’s leadership and contributions during his tenure.

#Man-Made Fibers

Lenzing invests EUR 15 mn to strengthen position in the hygiene market

The Lenzing AG is investing approximately EUR 15 mn to expand its production capacity for premium viscose fibers at its site in Lenzing, Austria. This strategic investment is part of the recently announced investment program of EUR 100 mn in total to secure the long-term competitiveness of Lenzing’s Austrian production sites. The capacity expansion reinforces the company’s commitment to providing sustainable solutions to the global hygiene market. It also strengthens the company's role as a trusted provider of high-quality fibers for feminine care applications.

#Man-Made Fibers

Lenzing AG: Stable revenue and improved EBITDA despite market headwinds

In the first nine months of 2025, Lenzing AG recorded revenue growth and higher EBITDA, but a market-driven volatile third quarter. This performance reflects the effects of ongoing market volatility, tariffs and geopolitical uncertainties. Nevertheless, the medium to long-term outlook remains positive.

More News on Recycling / Circular Economy

#Recycling / Circular Economy

Sahil Kaushik appointed CEO of Infinited Fiber as the company advances a phased path to commercial scale

Infinited Fiber has appointed Sahil Kaushik as Chief Executive Officer. Kaushik has served as Acting CEO alongside his role as Chief Operating Officer and will continue to oversee operations until a new COO is appointed.

#Recycling / Circular Economy

trinamiX with new management

BASF is examining strategic options for its subsidiary trinamiX GmbH. trinamiX specializes in biometric imaging and mobile material analysis. These activities are not part of BASF’s core business, on which the company is focusing as part of the implementation of its new strategy.

#Recycling / Circular Economy

Reju announces site selection for first U.S. industrial sized facility regeneration hub in Rochester, New York

Reju, the textile-to-textile regeneration company, today announced it has selected the site for its first U.S.-based industrial facility marking a significant milestone in its efforts to scale globally. This future Regeneration Hub will be in Rochester, New York, reinforcing Reju’s commitment to the adoption of circular textile system across key regions worldwide.

#Business

Canopy introduces a first-of-its-kind $2 billion USD investment blueprint to decarbonize global materials supply chains

Today, the global, solutions-driven not-for-profit Canopy joined partners at Davos to introduce a new finance model designed to accelerate the growth of low-carbon materials and transform the paper, packaging, and textile supply chains. The event was anchored by a keynote speech from Sri A Revanth Reddy, Hon’ble Chief Minister of Telangana, with India set to host the first iteration of the new investment blueprint.

Latest News

#Technical Textiles

Cinte Techtextil China 2026: redefining business encounters for trending sub-sectors and cutting-edge technologies

The essence of a good trade fair is to create chance encounters to deliver tangible business value to its participants. Driven to stay ahead, Cinte Techtextil China is constantly seeking fresh strategies to keep the industry attuned to emerging trends, pinpointing high-potential segments for technical textiles and nonwovens. With a new zone and upgraded fringe events introduced, the last edition saw an impressive 17% increase in visiting numbers[1], and this year’s fair is set to leverage that success from 1 to 3 September at the Shanghai New International Expo Centre.

#Spinning

Rieter completes acquisition of Barmag

Rieter has successfully completed the acquisition of Barmag as of February 2, 2026. This strategically important acquisition makes Rieter the world’s leading system provider for natural and synthetic fibers.

#Digital Printing

Epson launches SureColor G9000: high-production Direct-To-Film printer delivering greater productivity and reliability

Epson today announces the launch of the SureColor G9000, a new high-production Direct-To-Film (DTFilm) printer designed to meet growing global demand for flexible and efficient textile transfer printing. Expanding Epson’s DTFilm line-up alongside the SC-G6000, the SC-G9000 introduces enhanced speed, reliability and ease of maintenance for commercial garment decorators and textile producers.

#Nonwoven machines

Three ANDRITZ spunlace lines start operating at Alar Silk Road New Materials in China

Alar Silk Road New Materials and ANDRITZ have successfully commissioned three spunlace lines in crosslapped configuration at Alar’s facility in Aral City, Xinjiang, China.

TOP