[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

#Denim

TENCEL™ Lyocell - HV100 achieves global denim availability in six months; Vol. 2 debuts at Kingpins Amsterdam

When TENCEL™ Lyocell - HV100 debuted at last year’s Kingpins Amsterdam in October, 17 mill partners across five countries presented fabrics featuring the new fiber. Just six months on, participation has more than doubled, evolving into a global network that spans nine countries and four continents, signaling both strong industry momentum and growing demand.

#Techtextil 2026

Lenzing unveils three-tier cellulosic fiber portfolio for next generation protective wear

The Lenzing Group, a leading supplier of regenerated cellulosic fibers for the textile and nonwovens industries, today introduces Lenzing Solutions for Protective Wear. This integrated three-tier portfolio is anchored by LENZING™ FR fibers at the highest protection tier for inherent flame resistance and brings together complementary solutions including TENCEL™ Lyocell fibers, both EU Ecolabel-certified² and derived from certified or controlled wood sources³, within a unified protective wear architecture for the first time. The launch marks the most significant expansion of Lenzing’s protective wear business since the company pioneered inherently flame-resistant cellulosic fiber in 1977, and comes as the global personal protective equipment (PPE) market accelerates toward an estimated USD 130 billion by 2033⁴.

#Man-Made Fibers

Lenzing commissions 14 MW power‑to‑heat facility, strengthening grid stability and heat management

The Lenzing Group has successfully commissioned a new power‑to‑heat (P2H) facility with an electrical capacity of 14 megawatts. The installation converts renewable electricity directly into process heat, is fully integrated into the existing heat network at the industrial site, and represents a key building block for a fossil‑free heat supply. As project partner, VERBUND was responsible for the energy‑market integration and will operate the facility for balancing energy marketing, enabling it to respond flexibly to short‑term fluctuations in the power grid.

#Nonwovens

VEOCEL™ Lyocell production expands to Asia – Launching a new chapter for nonwovens in the region

VEOCEL™, Lenzing's flagship specialty nonwovens brand, expands production at its Thai plant in Prachinburi. This is the first-ever production of its nonwoven-grade lyocell fibers in Asia. Built in 2022 with a 100,000-ton annual production capacity, the facility - previously focused on fibers for textile applications - now can directly meet the demand for VEOCEL™’s biodegradable¹, wood-based lyocell fibers for nonwovens products. These fibers are an essential ingredient for high-quality nonwovens products, ranging from baby wipes to facial sheet masks and everyday personal hygiene items.

More News on Recycling / Circular Economy

#Recycling / Circular Economy

Textiles Recycling Expo 2026 to spotlight the companies turning textile circularity into industrial reality

As the textile industry faces mounting pressure to scale circular solutions, improve recycling infrastructure, and respond to evolving regulation, Textiles Recycling Expo 2026 will bring together the organisations leading that transformation in practice.

#Europe

Circular economy offers the EU win-win on environment and economy

Stepping up a circular economy offers the European Union the potential for significant positive impacts on Europe’s environment and poses an untapped and strategic economic opportunity in terms of better access to materials and the creation of new businesses. Three new assessments on circularity, published today by the European Environment Agency (EEA), also stress the need to accelerate investment in circularity efforts to meet EU climate and environment policy targets.

#Recycled Fibers

Lindex and BASF partner to bring textile-­to­-textile recycled polyamide to lingerie sector

Lindex has partnered with BASF’s loopamid® to accelerate textile-­to-­textile recycling and advance the shift towards more circular material solutions in the fashion industry. Together they introduce loopamid to the lingerie sector.

#ITM 2026

BB Engineering unveils new, patented “ValuePack” spin pack at ITM

At the upcoming ITM in Istanbul, taking place June 9–13 at the Tüyap Fair Convention and Congress Center in Hall 7, Booth 702B, BB Engineering will once again be represented at a joint booth with its parent company, Barmag, and its representative, Tekstil Servis. The German machine manufacturer will show-case its expertise in man-made fiber and recycling technology, presenting its entire product portfolio, which includes compo-nents such as extruders and filters, as well as complete sys-tems for spinning synthetic fibers, air-texturing, and PET recy-cling.

Latest News

#ITM 2026

New Monforts systems deliver round-the-clock production for Kipaş

As a valued Monforts customer for many years, Türkiye’s Kipaş Textile has just installed a new Thermex dyeing range and a Monfortex sanforizer at its new dyeing and finishing plant in Kahramanmaraş.

#ITM 2026

SHIMA SEIKI to show complete knitting and cutting workflow at ITM 2026

Leading computerized flat knitting technology provider SHIMA SEIKI MFG., LTD. of Wakayama, Japan, together with its Turkish representative TETAS IC VE DIS TICARET A.S., will participate in the ITM 2026 International Textile Machinery Exhibition in Istanbul, Türkiye this month with a full product lineup. In addition to flat knitting machines and design software, visitors will also have the opportunity to experience the full range of SHIMA SEIKI textile machinery with its automatic cutting machine exhibit, all geared toward the fashion apparel market as well as non-apparel related businesses.

#Raw Materials

Global Cotton area and production are projected to decline in the 2026/27 Season

The June 2026 issue of Cotton This Month projects a modest contraction in global cotton area, production, and trade during the 2026/27 season, reflecting weaker demand sentiment, rising production costs, and shifting environmental factors across major producing nations.

#Natural Fibers

European Flax-Linen & Hemp step into advanced manufacturing: Enabling filament winding, 3D printing and high-performance composite processes

The Alliance for European Flax-Linen & Hemp announces a new wave of technological advancements demonstrating how flax-linen and hemp fibres are now being successfully integrated into advanced composite manufacturing processes. These developments mark a transition beyond traditional hand lay-up techniques, positioning natural fibres as credible, scalable solutions for high-performance industrial applications.

TOP