Archroma Celebrating 3 Years Of Working with Aniline-Free Indigo Heroes


Archroma, a global leader in specialty chemicals towards sustainable solutions, celebrates nearly 3 years of successfully converting the denim industry to aniline-free pre-reduced liquid indigo.

Archroma launched its aniline-free Denisol® Pure Indigo in May 2018. Aniline is a key ingredient to make the indigo molecule. Unfortunately, during this process, some aniline impurities are carried through into the indigo dyestuff. When the indigo is dyed on the fabric, a lot of the aniline impurity is locked into the pigment in 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. Besides, exposure levels to factory workers can be high. 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.

“Aniline is a key ingredient of indigo, says Heike van de Kerkhof, CEO at Archroma. “Because of the toxicity of aniline, we wanted to do something about it – although we initially faced some resistance as not everyone was ready to shed light on the issue of aniline, especially in the indigo industry. That is why we are so grateful to the many like-minded denim partners who decided to take the hand we were offering with Denisol® Pure Indigo.”

Almost 3 years later, Archroma and its partners can pause and proudly look back to all the aniline they have removed -together- from the market, thus preserving the health of many denim workers and the aquatic life in our rivers. Archroma evaluates that, based on the total quantity of Denisol® Pure Indigo sold until its introduction, its partners helped remove almost 18 metric tons of aniline from the denim supply chain. That represents an equivalent to about 300’000’000 pairs of jeans free of aniline and more than 18’000 garment workers protected from its toxicity.

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