Break new ground with aniline-free* indigo for denim.

Archroma’s new aniline-free* indigo dye, Denisol® Pure Indigo 30 liq, reduces risk when producing 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, 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.

The toxic chemical is therefore starting to feature on the restricted substance lists (RSL) of some major clothing brands and retailers.

For designers and brand owners who long for authentic indigo inspiration, the new Denisol® Pure Indigo 30 liq now also makes it possible to produce indigo-dyed denim without high levels aniline impurities.

From fiber to finish, Archroma offers a scope of possibilities for effects and colors, from the authentic roots of indigo to the most innovative and eco-advanced solutions.

Archroma is a recognized leader in integrated solutions, offering best-in-class auxiliaries for bespoke process packages.

  • Aniline-free*
  • ZDHC Compliant
  • bluesign® APPROVED
  • GOTS APPROVED
  • Impact On Waste Water
  • Fashion Effects

* Below limits of detection according to industry standard test methods

ANILINE-FREE* - TESTED & PROVEN

We have tested the aniline levels present in our Denisol® Pure Indigo compared to standard pre-reduced indigo products at 30% concentration:

DENISOL® PURE INDIGO 30 LIQ

Test lab Test location Sample code Aniline result mg/kg Test report date Test report nº Test method Method detection limit mg/kg
STATS Asia Pacific Singapore P1 Not detected 16/01/2020 CHEM-200024 ISO14362-1:2017 10
STATS Asia Pacific Singapore P2 Not detected 16/01/2020 CHEM-200024 ISO14362-1:2017 10
STATS Asia Pacific Singapore P3 Not detected 16/01/2020 CHEM-200024 ISO14362-1:2017 10
STATS Asia Pacific Singapore P4 Not detected 16/01/2020 CHEM-200024 ISO14362-1:2017 10
STATS Asia Pacific Singapore P5 Not detected 16/01/2020 CHEM-200024 ISO14362-1:2017 10
TESTEX AG Zurich Sample B <5 23.05.2019 ZH150 153425.1 ISO14362-1:2017 <5
SGS Hong Kong Hong Kong 201809000172 Not detected 22.11.2018 SL118102941033TX SGS, GC-MS 30
SGS Hong Kong Hong Kong 201809000255 Not detected 22.11.2018 SL118102941033TX SGS, GC-MS 30
SGS Hong Kong Hong Kong 201809000365 Not detected 22.11.2018 SL118102941033TX SGS, GC-MS 30
TESTEX AG Zurich 201809000172 <5 25.10.2018 ZH015 14367.1 ISO14362-1:2017 <5
TESTEX AG Zurich 201809000255 <5 25.10.2018 ZH015 14367.1 ISO14362-1:2017 <5
TESTEX AG Zurich 201809000365 <5 25.10.2018 ZH015 14367.1 ISO14362-1:2017 <5

STANDARD PRE-REDUCED INDIGO 30%

Test lab Test location Sample code Aniline result mg/kg Test report date Test report nº Test method Method detection limit mg/kg
STATS Asia Pacific Singapore FB-RT-HP 736 21/01/2020 CHEM-200078 ISO14362-1:2017 10
STATS Asia Pacific Singapore Sample #Reg 645 16/01/2020 CHEM-200024 ISO14362-1:2017 10

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