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Archroma & CleanKore partner for sustainable dyeing

Feb 02, 2021
Archroma & CleanKore partner for sustainable dyeing


Archroma, a global leader in specialty chemicals towards sustainable solutions, today announced a strategic  partnership with technology innovator CleanKore, aiming to advance sustainable dyeing  processes throughout the denim supply chain. The agreement will allow Archroma and CleanKore to promote the benefits of each other’s technologies. 


This includes Archroma’s robust catalog of dyes and specialty chemicals along with  CleanKore’s patented process of dyeing yarns at the denim mill that completely eliminates  the need for potassium permanganate (PP) spray and laser booster to achieve the bright  white abrasion effect in the garment finishing process. 


The result is a large and circular bright white core with a small ring of indigo dye. The  technology does not just eliminate the chemicals associated in the PP spray and laser  process, which is much safer for denim workers, it also allows to save significant amounts  of water and energy throughout the manufacturing process from fabric to garmenting.


CleanKore initially looked at eliminating potassium permanganate due to its being classified as hazardous if inhaled or ingested, or in case of contact with the skin or the  eye. It is also considered very toxic to aquatic life.


No new equipment or capital expenses are needed to implement the CleanKore  technology, which works on all denim fabric, including dark indigo, sulfur top/bottom and  sulfur black.


This is where Archroma comes into the picture. Its global technical team of denim  coloration specialists will provide support to denim mills seeking to implement the  CleanKore technology and develop the desired looks and effects - with the right colours and  chemical systems for their production set-up.


CleanKore estimates that the technology allows to save up to 15 liters of water per  garment, or the equivalent to the drinking needs of 5 people per day, and up to 0.51 kWh  of energy per garment, or the equivalent of five 100-watt light bulbs on for 1 hour. The  CleanKore technology also leads to a 10 to 20 per cent increase in production throughput, as a  result of a faster garment wash-down and the elimination of PP spray.


CleanKore, CEO, Darryl Costin Jr, said, "We have successfully proven the technology with mill partners such as Arvind  and other denim mills in Pakistan, Bangladesh, China, Vietnam, Thailand and the United  States. The response from the industry has been overwhelmingly positive. Having a  partner in Archroma, one that is highly respected for their innovation and emphasis on  sustainability throughout the industry, will allow us to take CleanKore to the next level.”


Umberto Devita, Global Indigo Manager at the Archroma Global Competence Center for  Denim & Casualwear, added: "CleanKore is perfectly aligned with the 3 pillars of 'The  Archroma Way to a Sustainable World: Safe, efficient, enhanced'. 'Safe' through the  elimination of a potentially harmful substance and the protection of the denim workers,  'Efficient' through the reduction of resource consumption, improved productivity and cost effective profile. And 'Enhanced' through the gorgeous colors and effects allowed with  Archroma's innovations and systems, in particular our aniline-free* Denisol® Pure Indigo  and Diresul® sulfur dyes. We look forward to help promoting an innovation that will help  with many of the challenges facing our denim customers throughout the world. Because it’s  our nature."