Green is the new blue-Indigo! New denim dyeing processes

18/07/2019
Green is the new blue-Indigo! New denim dyeing processes

 

In a previous article, the Marketplace team introduced the various actions some denim weavers are taking to reduce the amount of energy used in making denim.

While many efforts are being made to reduce denim's energy impact, it's important to remember that traditional dyeing processes are also recognized as a significant source of pollution.

As a result, denim companies, pioneers in environmental protection, have also been exploring this area to find and offer solutions.

Find new and more responsible dyeing processes through our selection of suppliers on the Marketplace.

 

 

Kilim

 

 

 

Kilim uses a new process aiming to forget the use of sodium dithionite in a new generation of indigo dyes. They have completely stop producing sulfide salt, which collects in water, biologically cannot be dissolved, and is preserved in nature to some extent. This will prevent the emission of toxic ingredients in nature. Aiming to minimize the environmental hazard, this new indigo dye also offers a different, more natural indigo shade.

 

 

Berto

 

 

 

The indigo dye Berto uses for its organic cotton fabrics is natural and stems from the processing of the leaves of the Indigofera Tinctoria plant, grown in southern India. The cultivation of these plants entirely excludes harmful chemicals. The indigo dye is extracted from the leaves through a process of bio-fermentation in water. The waste material resulting from this process is used as fertilizer for the soil itself, thus a process twice as ethical. These fabrics are GOTS certified and the substances used in the production process are REACH approved.

 

 

Advance Denim

 

 

 

 

Advance Denim uses an aniline free indigo. Denisol® Pure Indigo 30 liq was officially launched by Archroma last year and Advance Denim was the first mill to test it. Archroma’s Denisol® Pure Indigo 30 liq reduces risk when producing the traditional, iconic indigo blue that consumers associate with denim and jeans. Advance denim also uses Ecore, a technology to achieve low indigo penetration on the yarn, which will be easy to laser and easy to wash, reducing energy and water consumption during the laundry processes.

 

You can also find the Smart Creation podcast by Michael Lam, marketing director of Advance Denim.

 

 

 

 

Prosperity Textile

 

 

 

 

The company has been working hard on more sustainable indigo dyeing technologies, reducing their use of water and chemicals, and cutting CO2 emissions. In July 2016, the company successfully installed and connected a 218 KW solar project on the rooftop of their warehouse to the grid, and installed a sewage treatment plant able to process 3,500 tons/day to process waste water after dyeing and finishing.

 

 

 

SOORTY

 

 

 

 

 

 

This season, Soorty introduces a Cradle to Cradle certified range using GOTS and OCS certified Organic Cotton and ROICA™ premium stretch yarn. They were granted Cradle to Cradle Certified™ Gold Level for Material Health product and ingredients - an evaluation throughout the supply chain for lower impacts on human and environmental health. The company works towards toward eliminating all toxic and unidentified chemicals for a safe continuous cycle.

Fabrics are dyed using Dystar Liquid Indigo which is C2C certified as well.

 

 

ORTA

 

 

 

 

 

From the SS19 collection on, each fabric is made using the indigo flow process that is proprietary to Orta. Indigo flow is a clean label process whereby it is possible to achieve up to 70% reduced water use, better dye penetration and energy savings, all in a fabric with richer and cleaner look.

 

 

Find here a selection of products from these weavers, who are present on the Marketplace and who are among the pioneers in environmental protection.

 

Fabrics | Denim |Advance Denim, China | Réf : QA417L9-89- CO QA417L9-89| 100% CO | See more

 

 

Fabrics | Denim |Berto, Italy | Réf : K534- CO TEXAS| 100% CO | See more

 

 

Fabrics | Denim |Kilim, Turkey | Réf : D4815- CO VIENNA STR| 36.1%PCJ 31.1%RPET 26.6%ORG 1.2%EA | See more

 

 

Fabrics | Denim |Orta, Turkey | Réf : 1757A- CO 1757A| 98% cotton + 2% elastane | See more

 

 

Fabrics | Denim |Prosperity Textile, China| Réf : RH3941E-26- CO RH3941E-26| 67%CTN 18%RAYON 13%TENCEL Lyocell 2%LYCRA | See more

 

 

Fabrics | Denim |Soorty, Pakistan | Réf : Art. 7027E FF W - CO BISCOTTI LEGEND| 98% CO 2% EA | See more

 

 

Also find our prior denim know-how article regarding energy saving processes, with more to come in upcoming articles.

 

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