Tuong Long switch 100% its production Archroma’s aniline-free indigo dyeing

Tuong Long to switch 100% of its production to Archroma's aniline-free indigo dyeing

6:45 AM, 13th June 2019
Denim production line of Vietnam-based Tuong Long, the first denim manufacturer in Vietnam to switch 100% of its production to Archroma’s aniline-free Denisol Pure Indigo.
Denim production line of Vietnam-based Tuong Long, the first denim manufacturer in Vietnam to switch 100% of its production to Archroma's aniline-free Denisol Pure Indigo.

REINACH, SWITZERLAND: Archroma said that Vietnam-based Tuong Long Co Ltd (Tuong Long) is the first denim manufacturer in Vietnam to switch 100 percent of its production to Archroma’s aniline-free (below limits of detection) Denisol Pure Indigo.

Tuong Long is a textile manufacturer based in Vietnam, whose plant is located near Ho Chi Minh City and employs 600 people producing up to 18,000,000 meters of fabric per year. Tuong Long manufactures and trades woven fabrics, particularly denim and khaki, stretch and non-stretch, for apparel brands in the USA, Japan, Europe, Korea, Taiwan, and Vietnam.

Archroma’s Denisol Pure Indigo 30 liquid dye was first launched in May 2018 as a non-toxic way to produce the traditional, iconic indigo blue that consumers associate with denim and jeans.

During production, some of the aniline stays locked into the indigo pigment and is difficult to wash off the fabric. The remainder of the aniline impurity, approximately 300 metric tons annually, is discharged during dyeing. This can be an issue as aniline is toxic to aquatic life. In addition, exposure levels to factory workers can be high. As a result of its toxicity (more hazardous than alkylphenols) it is now starting to feature on the restricted substance lists (RSL) of some major clothing brands and retailers.

The new Denisol Pure Indigo 30 liq was therefore developed as an aniline-free indigo solution for designers, manufacturers and brand owners who long for authentic indigo inspiration.

“Tuong Long is engaged into manufacturing denim and khakis fabrics in a cleaner way. That is why we had our wastewater treatment licensed - the only factory to be in our industrial zone! So when we heard about an aniline-free version of indigo, we decided to look into it. We then realized that Archroma’s Denisol Pure Indigo actually is an indigo dye and as such performs just as conventional indigo – and we decided to switch 100 percent of our production to it,” said Dieu Tuong, Production Manager at Tuong Long.

“Archroma is bringing to the textile industry a continuous flow of eco-advanced innovations aimed at making our industry sustainable. By adopting these, forward-thinking manufacturers, such as Tuong Long and its converting to aniline-free* Denisol Pure Indigo in their daily production, help us with that agenda. And as consumers are increasingly concerned about the climate crisis, this is not only the right thing to do - it is also good for business,” added Michel Zumstein, President Region Asia at Archroma.

© Worldofchemicals News



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