Darling Fibers

We are Darling Fibers, and We Are Home.

In 2020, we restarted manufacturing lines that powered the industry’s number one brand for decades, and rekindled a commitment to service and collaboration that delivers what you’d expect from a smart domestic supplier. And we are doing it with the future in focus.

Made In

Darlington, SC

USA

As one of the largest domestic producers of high-quality polyester staple fiber for the fabric, garment, and fashion industries, we’re harnessing one million square feet of manufacturing space and a strong legacy of quality and service to reimagine our company and the products you make for the circular economy and beyond.

Our Products

Our ambition is as robust as our capacity. With 12 manufacturing lines, we have room to produce a diverse mix of polyester chip and fiber, from legacy staple fiber to polyester that pushes the limits on carbon neutral, recycled, bio-based, and next generation biodegradable.

Darling Fibers can offer a range of 0.9 – 15 dpf staple products in Superwhite and Semi-dull OB for Knits, wovens, nonwovens and high-loft applications.

Nature-Positive Products

Nature-Positive Products are certified climate neutral to help you meet your sustainability goals for a lighter carbon footprint product.

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened SUPER-WHITE

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened

Nature-Positive Products

Legacy Products under the Fortrel brand are now branded as PolyFi.

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened SUPER-WHITE

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened

  • Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Darling Fibers’ Premium Mid-Tenacity Spinning Fiber

    Semi-Dull Optically Brightened

Sustainably Yours

Darling Fibers is catalyzing the future of fiber, built on five tenets:

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    Product Transparency
  • Product Transparency Icon
    Operational Intelligence
  • Product Transparency Icon
    Redefining Innovation
  • Product Transparency Icon
    Repurpose, Reuse, Recycle
  • Product Transparency Icon
    Doing Better Together

Together with our partners, we are investing in research, development and manufacturing platforms that power an ambitious product development pipeline to produce increasingly sustainable, high performance fibers to compliment our legacy product offering.

  • Carbon Neutral Nature Positive

    Darling Fibers is investing in decarbonizing technologies to bring you a zero carbon polyester staple fiber that can further offset your total fabric, or your entire product carbon footprint.

  • Nature Positive + Biobased Nature2Nature

    We are onboarding new raw materials streams and collaborative partnerships to introduce biobased inputs to our staple fiber, with a goal to pioneer an ocean-safe biodegradable polyester.

  • Nature Positive + Recycled

    We are pioneering a sustainable stream of recycled fiber inputs that will deliver on the real promise of the circular economy. Our goal is to collaborate with a forward-thinking technology partner to offer recycled content fiber, ensuring an ever-lower carbon footprint for our customers.

About Us

Located on Darlington Green, a beautiful 765-acre site, we’re inspired to be stewards of the land and the community that surrounds us in Darlington, SC.

As we diversify our product offerings and introduce new products and technologies, we’re also attracting industry partnerships to deliver on the promise and the opportunity of the circular economy, made in America.

Darlington Green

If you’re interested in co-locating on our campus, contact us at darlingtongreen.com

What We Believe

  • Mission Icon

    Mission

    Our mission is to operate safely and provide consistent, quality products to our clients assuring their requirements are met in a trustworthy and efficient manner

  • Mission Icon

    Vision

    Our vision is to be a leader in innovative and sustainable solutions for the polyester textile and packaging industries

  • Mission Icon

    Values

    We take care of our:
    • People
    • Customers
    •Community
    •Partners
    •Shareholders

    And we do it through:
    • Safety
    • Integrity
    • Excellence

Leadership Team

With a management team made of industrial, process manufacturing and textile sector veterans and a core support team in place, we’re committed to building a different kind of enterprise: collaborative, innovative, responsive and designed with the future in mind.

© 2025 Darling Fibers