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DIRESUL® RDT

Archroma’s DIRESUL® RDT range of pre-reduced liquid sulfur dyestuffs challenge traditional water-intensive denim dyeing. They have minimal sulfide content and deliver unique blue, black and colored denim across a variety of application processes. These are also used in combination with indigo for a specific denim look.

Consistent and highly reproducible, the low-sulfide DIRESUL® RDT formulations promote chemical savings and cleaner wastewater versus powder sulfur dyes.

The DIRESUL® RDT dyes have a wide range of colors allowing to meet a variety of design effects. DIRESUL® EVOLUTION BLACK is based on cutting-edge synthesis technology developed by Archroma; it delivers an overall impact reduction to 57%*, measuring its effect on human health, ecosystems and resources compared to a standard Sulfur Black 1 liquid.  while DIRESUL® SMARTDENIM BLUE offers possibility of producing blue denim of up to 50% water savings as compared to conventional indigo dyeing.*

We help you stand out in a crowded denim market with unique shade and washdown effects on everything from classic indigo to blue, black and gray tones, popular greens and khakis, and fashion colors.

Through decades of innovation, Archroma has made major advances in sulfur dyes—from the industry’s first low-sulfide pre-reduced sulfur dyestuff to our latest breakthrough products. Founded in 1921, our Castellbisabal manufacturing and research hub in Spain continues to spearhead the creation of more sustainable sulfur dye technologies for the world.

Learn more about our innovations:

EarthColors®

EVOLUTION BLACK

FiberColors®

Choose DIRESUL® RDT for:

Wide color palette

Exciting fashion colors

Unique washdown effects

Minimal or no sulphide content

C2C and other eco-labels*

High performance

Reproducibility

Chemical savings

Reduced wastewater impact

Strict manufacturing protocols

Reliable global support

* DIRESUL® RDT range is bluesign® approved, a GOTS approved additive, published on the ZDHC Gateway with Conformance Level 3 and has received the Cradle to Cradle Products Innovation Institute’s Gold Level Material Health Certificate. For further information please refer to The Safe Edge portal. 

DIRESUL® RDT range

DIRESUL® EVOLUTION BLACK

  • Pre-reduced liquid sulfur dyestuff that deliver impact reduction

DIRESUL® SMARTDENIM BLUE

  • Pre-reduced liquid sulfur dye that behaves like liquid indigo in elegant neutral-green blue tones

DIRESUL® COLORS

  • Pre-reduced liquid sulfur dye in warm earthy tones, green khakis and vibrant shades

SUPER SYSTEMS+

SUPER SYSTEMS+ equip you to meet your sustainability goals while you satisfy evolving market demands. Today’s consumers crave soft, easy-care fabrics that retain their shape and bright colors—and help them stay cool and fresh.

DIRESUL® RDT is available in the following Super Systems:

Super Systems+

Sheeting (Polyester Cotton)

Fabric that combines the durability and easy-care of polyester with the cool comfort of cotton is popular. But it can bring challenges when sustainable bedding is the goal.

Super Systems+

Sheeting (100% Cotton)

Cotton bed linens are light, breathable and soft, with an incredible drape. But brands increasingly also want them to be processed with a less water, energy, dyes and chemicals.

Super Systems+

Towels (100% Cotton - exhaust)

Sustainable towels in 100% cotton are on-trend, especially if they offer lasting colors and optimal softness, freshness and absorbency—all while using fewer resources.

Super Systems+

Towels (100% Cotton - continuous)

Sustainable towels in 100% cotton are on-trend, especially if they offer lasting colors and optimal softness, freshness and absorbency—all while using fewer resources.

Super Systems+

Color Denim

Whether vibrant hues, pastels or earth tones, color denim is difficult to produce. But now you can meet today’s toughest standards and prepare for what’s next with confidence.

Super Systems+

Black Denim

Versatile black denim is in high demand, but achieving deep shades that won’t fade has always been a challenge. New production processes are redefining what’s possible.

Super Systems+

Blue Denim

Blue Denim Blue denim is a classic, loved for its range of shades and wash-down effects. Our solutions boost both performance and productivity, all while driving sustainability.

Super Systems+

Cotton Knits

Cotton is great for comfort and style, but it can bring processing and compliance challenges. Our solutions make environmental and economic sense.

How can we help you?

Contact our experts to find your best solution

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