Karl Mayer : Sustainable indigo dyeing proces...
Karl Mayer

Sustainable indigo dyeing process for Levi's

Greendye laboratory machine (Source: Karl Mayer)
Greendye laboratory machine (Source: Karl Mayer)

Karl Mayer continues to expand its cooperation with leading denim brands. Just recently, Karl Mayer signed an agreement on a joint project for a more sustainable indigo dyeing process with Levi Strauss & Co. Corp., San Francisco, CA/USA.

The Karl Mayer Group, Obertshausen/Germany, is already with its Prodye-S unit one of the leaders in the fashion market, and its Prodye-R is increasingly establishing in the rope dyeing process. In 2019, the Greendye technology has been launched at ITMA in Barcelona/Spain.
With Greendye, indigo dyeing is 2 times cleaner and at the same time 3 times more efficient than with the processes of conventional equipment. The basis for the very good performance is the use of nitrogen (NOX) technology to control the chemical dyeing process. In the NOX reactor, the indigo dye has time to create a more solid physical bond into the fiber composite, adhere there and be fixed. It is also possible to increase the indigo concentration in the dye bath. These effects enable the yarn to absorb three times more dye than in case of conventional processes.
This year, Nien Hsing Textile, Taipei/Taiwa, was the first manufacturer to invest in Greendye by Karl Mayer. The machine will be delivered to Taiwan by the end of 2022.

Denim R&D Center
The Karl Mayer Research & Development Center for Denim offers the opportunity to test the performance of Greendye by Karl Mayer on a pilot plant with individual trials. "The customer can come to us with his yarn. We dye and warp it and process it with our Italian partners into fabrics that he can compare with his previous goods," explains Stefano Agazzi, Chief of Technology and Products at Karl Mayer Rotal Srl, Mezzolombardo/Italy.

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