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Green Products and Processes
  • Sales and Certifications of Green Products
  • Green Products - The Climate Change Series
  • Green Product - Health and Eco-Friendly Series
  • Green Product Processes

Revenue of Green Sustainable Products


Certifications of Green Sustainable Products


Global Recycled Standard, GRS
Version 4.0

  • 100% post-consumer recycled polyester chips
  • 52%, 78% post-consumer recycled polyester content sheet
  • 100% post-consumer recycled polyester POY, DTY, FDY, SDY, HDI
  • 50% post-consumer recycled polyester content DTY
  • 100% pre- and post-consumer recycled polyester staple fiber
  • Staple fiber with above 20% pre- and post-consumer recycled polyester
  • 92%, 100% pre-consumer recycled nylon content POY, FDY
  • Knitted fabric with above 20% post-consumer recycled polyester
  • 100% post-consumer recycled polyester yarn
  • Yarn with above 20% post-consumer recycled polyester
Recycled Content Certification
Version 7.0
  • 100% post-consumer recycled polyester POY, DTY
  • 100% post-consumer recycled polyester chips
  • 25% post-consumer recycled polyester content chips
  • 30%, 50%, 70% post-consumer recycled polyester content sheet
  • TPEE film with above 50% post-consumer recycled polyester
  • 29% post-consumer recycled polyester content shrinkable film
TÜV Rheinland
Recycled Material Verified
  • Contains Minimum 90% of Pre-Consumer Recycled Nylon Yarn
Recycled Claim Standard, RCS
Version 2.0
  • 100% post-consumer recycled polyester dyed knitted fabric
  • 89% post-consumer recycled polyester content dyed knitted fabric
Taiwan Green Mark
  • 100% recycled polyester chips
  • 100% recycled polyester filament
  • 100% recycled polyester staple fiber
  Life Cycle Assessment
ISO 14040:2006
ISO 14044:2006
  • PET resin
  • Bio-PET resin
  • Post-consumer recycled PET resin
  • PET sheet
  • Post-consumer recycled PET sheet 
bluesign® Standard
  • Knits for Outdoor and Sportswear
OEKO-TEX® Standard 100
(Confidence in Textiles
Tested for Harmful Substances)
  • Polyester filament POY, DTY, ATY, HDI
  • 100% recycled polyester filament POY, DTY, FDY
  • EZ dyed CD filament POY, DTY
  • FENC-Celliant® polyester filament
  • Nylon66 yarn POY, FDY, DTY, ATY
  • Polyester staple fiber
  • 100% recycled polyester staple fiber
  • Bi-component bonding fiber
    PE/PET bi-component staple fiber
    Nylon/PET bi-component micro fiber
  • PLA Fiber
  • 100% combed cotton yarn
  • 100% polyester yarn
  • 100% recycled polyester yarn
  • 100% polyester/recycled polyester/ Celliant®/cotton blended yarn
Global Organic Textile
Standard, GOTS-NL
Version 5.0
  • Yarn with 95%-100% organic combed cotton
  • Yarn with above 70% organic combed cotton
Organic Content Standard, OCS
Version 2.0
  • Yarn with 5%-100% organic combed cotton
Better Cotton Initiative, BCI
  • 100% BCI combed cotton yarn
  • BCI combed cotton content yarn
  • BCI cotton content fabrics



Adaptation Product

FENC conducts research, development and production of functional materials, providing customers with options to adapt to extreme climate.

♦FENC® TopHeat+
TopHeat+ can absorb moisture vapor from the human body and release it as heat. Added with the fast drying quality, this product ensures warmth and comfort.

♦FENC® Sunex Filament
Sunex Filament comes with a novel ceramic additive, which absorbs heat from the environment and human body while emitting heat in the form of far infrared (FIR), giving Sunex Filament heat emitting and anti-static qualities.

♦FENC® Insulate
With professional manufacturing technique and unique formula, FENC has created a polyester fiber specifically engineered to biomimic both loft recovery and air space trapping properties of natural down. The insulation fibers are light and insulate against cold effectively. The fibers have been improved for added functional properties, such as deodorizing, providing FIR energy for the human body, easy maintenance and upholding their properties after washing.

♦FENC® TopCool®
TopCool® manages moisture and sweat on the skin surface with cross-sections that decrease capillary diameter to enhance moisture transport and spread. The moisture quickly travels to the surface of the fabric and evaporates, keeping the skin dry and comfortable. TopCool® also blocks UV light. It is easy to clean and fast drying.

♦FEFC® Natural
FEFC® natural, a cottony UV cut nylon 66 fiber uses specialty N66 polymer for spinning, which greatly enhances its ability to reflect and absorb light, and gives the yarn a delicate matte finish. Its appearance and texture mimic natural cotton, and yet the yarn comes with superb UV protection, blocking and reflect UVA and UVB. Lab results indicate that the UV cut nylon delivers the highest UPF level of50+.

♦FENC® Solarfree+
Made with a unique conjugated spinning technique, Solarfree+ can better reflect UV light, block UVA and UVB, and prevent suntan and UV damage.

♦FENC® SolarfreeRED
SolarfreeRED effectively reflects near infrared (NIR), shields the skin from irradiative heat and maintains cooler temperature. It also keeps the skin from sun damages by blocking UV light.

Mitigation Product

FENC continues to devote resources to the research and development of sustainable green products, providing green solutions that offer recycling and reduction of energy and resource consumption, thereby decreasing GHG emission and mitigating climate change.

►Mitigation Product Flow

PET is made of 70% PTA and 30% MEG. With years of research and development, Bio-MEG produced with biomass is starting to gain economic values. The source of biomass materials is non-food plant, which doesn’t take up shares of food sources. The use of biomass also reduces dependence on fossil fuel and lowers GHG emission.
As the world leader in Bio-PET production, FENC builds upon 50 years of experience in polymerization and successfully created the world’s first 100% Bio-PET bottles and shirts.


Application: • PET bottles • Packaging sheet • Industrial filament  •  Fiber

Invention of the First 100% Bio-based PET Bottle in the World

100% Bio-polyester shirt

♦FENC® Recycled PET

With recycled PET bottles as material, production process entails crushing, cleaning, decomposition, polymerization and granulation. Recycled PET helps us reduce reliance on fossil fuels and waste of resources. It also promotes recycling and reuse of resources.


• PET bottles • Shrink film • Packaging sheet
• Plastic ware • Waterproof and breathable membrane • Cloth fiber
• Footwear fiber • Industrial filament  • Foam midsole 

Implement circular economy – FENC giving new value to recycled PET bottle (Chinese)

♦Recycled Nylon 66 Filament
To respond to the trend of sustainable development as well as guidelines on energy conservation and carbon reduction, FEFC had been developing recycled nylon 66 filament since 2014. Spinning waste is recycled and reused through the process of collecting, melting, filtrating, re-pelletizing and re-spinning. Bypassing the polymerization process, this recycling and reuse process reduces energy consumption and CO2 emission by approximately 70%, hence benefiting the environment by facilitating energy conservation and carbon reduction.

♦Fast Reheat and Energy-saving PET Resins
FIR absorber is added during polymerization to produce the energy saving PET resin. This process enables the material to effectively absorb FIR thermal energy from the quartz heating lamp during blow molding for customers, and enhances efficiency for them by 20% to 30%.

Lightweight Preforms
Modifications made to the production process and materials increased stability of the blow molding process and greatly reduced the thickness of PET bottles. These characteristics lower material consumption, and reduce product weight by 10% to 20%, depending on the bottle size. During the product life cycle, delivery, for instance, consumption of other resources and carbon footprint are also reduced during transportation, resulting in more environmental benefits.

FENC® EZ Dyed CD Filament
EZ dyeing is a low temperature dyeing process without compromising the vibrant colors. This filament is ideal for blending with heat sensitive materials such as cotton, wool and nylon.

FENC® Dope Dyed Filament
During spinning POY, different color master batch is added. Making fabrics with dope dyed filament bypasses the dyeing process, which saves on dyeing agent, reduces the need for wastewater treatment, and prevents toxic substance. Such process also greatly reduces water consumption, energy waste, and CO2 emission. Dope dyed filament is the latest generation of environmental friendly and energy saving product, providing vibrant colors with better fastness to sunlight and washing。

Application: • Polyester filament • Nylon 66 filament • Polyester industrial filament •  Nylon 66 industrial filament.

 Textile Chemical Recycling Technology – r-TEX Process

Polyester products mainly include PET and fiber. PET products include PET bottles and packaging materials, which can be recycled and remanufactured into new polyester products, and FENC is the world leader of this technology. The main applications for polyester fiber are textiles such as apparel and interior textile. Different fibers are blended together during production. The complex composition adds to the difficulty of recycling.

In light of the fact that textile waste is under increasing public scrutiny, FENC launched the r-TEX Process development project. The goal is to develop chemical recycling and treatment technology for textile waste to address the current technological limitation of recycling only singular type of polyester textile. The goal is to turn textile waste into high-value functional textile, fulfilling the dream of circular economy using Textile to Textile (T2T).

This technology has received funding from the 2018 Taiwan Industry Innovation Platform Program (TIIP) from Industrial Development Bureau of MOEA. In addition to enhancing the core technology, FENC integrates related industries across several fields, including optical recognition, wastewater recycle and waste treatment. The company also built pilot plant to evaluate the feasibility of mass production.

FENC® rTex


 Protecting Ocean Habitat and Turning Waste to Valuables

FENC combines its unrivaled polymerization technology with recycling and reuse, turning PET bottles from ocean waste into eco-friendly yarn. The Company is currently the only supplier of this eco-friendly yarn with which adidas and Parley for the Oceans collaborate. The product was introduced to the market in 2016 and very well received. In 2017, adidas produced 1 million pairs of footwear produced with plastic ocean waste. The number surged to 5 million in 2018. It is anticipated that 11 million pairs will be produced in 2019.

As of 2017, this project had helped reduce 1,000 metric tons of plastic ocean waste. The year 2018 brought another 1,600 metric tons in reduction. Through circular economy, this project successfully created buzz and raised awareness among the public on protecting marine habitat. Sales of yarn made of plastic ocean waste grew by 50% in 2017, and another 50% in 2018. Applications include running shoes, sports jersey and apparel made of waterproof and breathable membrane. Mass production and shipment of the waterproof and breathable membrane began in 2018, and the product had been recognized as Top 10 in ISPO Munich 2019.



Shoes made with ocean waste with critical technology from Taiwan (Chinese)

♦ FENC® TopClean
FENC pioneered the world’s first PFC free soil release polyester yarn, TopClean, which removes soil and stains effortlessly when soaked in water. This new generation PET product is environmentally friendly and provides an alternative for users to sustain natural habitat.

♦ FENC® TopDry ZeroTM
By adding the PFC free water-repelling additive during spinning, the wickability of TopDry ZeroTM gives the fiber fast drying quality, therefore providing a true dry interior. Textiles made of this material effectively keep the skin dry to deliver comfort.

♦ PFC Free Nylon 66 Filament
Even after 25 washes, the filament is still highly water repellent while maintaining abrasion resistance and softness, which are original characteristics of nylon 66. Such performance makes this product ideal for outdoor sports and as footwear.

FENC®PFC-free Solution

♦ Sb Free Filament/PET
Antimony (Sb) catalyst, which is harmless to humans, is commonly used during polyester synthesis. However, prolonged exposure to antimony still poses potential threats to the environment and human health. Such concern prompted FENC to develop Sb free filament.
Application: • PET bootles  • Fiber

♦ Zero Solvent Coating & Lamination
FENC developed a coating and lamination process that requires zero solvent and completely water free. FENC Zero Solvent Coating & Lamination simplifies the coating & lamination process and is extremely durable against washes while maintaining consistent quality. Comparing to conventional solvent and water-based production, the Zero Solvent & Lamination process is water free and delivers energy conservation and carbon reduction with zero emission of harmful volatile organic compounds (VOC) and pollutants.

FENC®TopGreen® Coating & Lamination

FENC is dedicated to environmental sustainability, and passionate about reducing energy consumption during the production process. The Company has set zero waste production as the longterm goal, and responds to SDG12 – responsible consumption and production set forth by the UN. With steady strides, the Company will continue to march toward the green industry.

The third production line at OPTC, which is newly added and equipped with the latest PTA manufacturing process, has begun production. Comparing to other production lines, the new production line emits less GHG and air pollutants, and increases the percentage of recycled and reused wastewater. All of which minimize impact on the environment. Adjustments are ongoing even after production began. The current unit GHG emission is approximately 0.27 t-CO2e per metric ton of PTA, which is 44% lower than conventional production; the unit NOx discharge is 0.030 kg per metric ton of PTA, which is 93% less than convention production; percentage of wastewater recycled has increased to 60%. Furthermore, the new production line incorporates AI and constructs models using algorithm, giving it the ability to predict abnormality in production quality and energy consumption. Managing staff will be notified immediately, which prevents waste of resources and fulfills the goal of sustainable production.


 Modification of Oxidation Reactor

OPTC had been actively introducing new technology and optimizing the production process while continuing improving the production line. The goal is to reduce energy and resource consumption and increase recycling in order to coexist with the environment sustainably. 

“Oxidation reactor” is the core of production at OPTC. Its long-running operation results in slags accumulating on the interior walls, which hinders its efficiency and drives up consumption of raw material. To address this issue, OPTC collaborates with a renowned German stirrer supplier. For the first time, the German supplier incorporated its state of the art stirrer into PTA production, which improved the efficiency of the reactor. Many simulations were conducted during a 2-year period to overcome the limitations posed by original equipment, and thereby minimized risks during the modification process. The modification, which was accomplished during the 12-day Chinese New Year period, was an ultimate success. The result also reduces the consumption of catalyst and electricity, which amounts to approximately NT$35.5 million per year. In addition, the production volume, quality and stability are also greatly improved while reducing waste as a result.


 Installation of PTA Mother Liquid Solid Recovery Unit

OPTC installed the PTA Mother Liquid Solid Recovery Unit, which reduces the temperature of mother liquid separated from the liquid-solid separator during purification. Organic crystalline then precipitated from the mother liquid. After filtering, the organic solid acid is separated and recycled. It is then forwarded to the oxidation reactor system to produce PTA. In 2018, OPTC produced 3,576 metric tons of PTA from recycled mother liquid. This technology recycles and reuses resources with higher efficiency, and greatly lessens the burden on wastewater treatment.


 Investment in the Second Water Free Dyeing Machine

Demand for water is high during the dyeing process of textile products. The wastewater generated during this process is also another dilemma for the industry. Hence, FENC developed water free dyeing technology for polyester products. Water is replaced with CO2 supercritical fluid, which can be used repeatedly. The dye is infused into fabric or fiber in the hightemperature, high-pressure cycle with zero wastewater. The process is less time consuming, and conserves less energy and chemical required for dyeing, while maintaining product quality such as texture and elasticity.

FENC’s water free dyeing plant began operation in 2014. In 2018, the Company invested in a second water free dyeing system and eagerly developed additional applications of water free dyeing toward the more difficult nylon material. The two water free dyeing machines generate 80 metric tons/month in production capacity, conserving 8,000 metric tons of water per month, and reducing the consumption of dyeing and finishing agent by 16 metric tons per month.


FENC® sc Nylon


 The Switch to Steam Hydrolysis Regeneration System

FEIS used to clean the filter rod with EG under high-temperature boiling. When the process concludes, EG is discharged in the form of high-temperature gas. Such process not only demands more EG, but also creates environmental pollution and causes occupational hazards. Hence, FEIS switched to a boiler system that utilizes hydrolysis on all production lines, which cleans thoroughly without causing occupational hazards. This alternative reduces EG consumption, processing costs, as well as loss associated with downtime. All of which amount to NT$9.35 million in saving per year.



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