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IndiGold

Archroma in indigo partnership

Following successful technical trials, Archroma has formed a partnership with Stony Creek Colors to market Stony Creek’s IndiGold plant-based pre-reduced indigo dye at scale. Archroma will produce the first batches at Salvatierra, Mexico.

IndiGold will be sold as a 20% concentration in a soluble liquid form. The two companies said that it displays similar performance to comparable synthetic indigo products available on the market. Stony Creek extracts the dye from proprietary

Indigofera plant varieties grown in partnership with family farms as a regenerative rotational crop. It is said to be the first ever plant-based alternative to synthetic pre-reduced indigo. The company has been selling it to denim mills since 2015.

Archroma was selected as the partner because of its experience in indigo manufacturing and application. It previously developed the first ever aniline-free synthetic pre-reduced indigo and the CleanKore technology for aniline- and potassium permanganate-free spray and laser booster for white abrasion.

In parallel, it has been announced that Levi Strauss and Stony Creek will pilot the use of IndiGold in denim mills at scale. The two were connected via the Fashion for Good innovation platform, which seeks to enable brands and innovators to jointly test, validate and scale disruptive innovations to drive positive impact in the fashion industry.

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