From the Sector

Reset
4 results
19.06.2022

DyStar Celebrates 125 Years of Indigo Excellence

The story started with a huge market demand for the industrial synthesis of Indigo during the late nineteen century. The first Industrial Synthesis of Indigo, Indigo Pure BASF, was successfully manufactured and introduced into the market by BASF in July 1897. It was a significant achievement for the German Chemical Industry.

Over the years, the product has made revolutionary changes to the supply chain. New technologies enabled the transformation of Synthetic Indigo Powder application to pre-reduced DyStar® Indigo Vat 40% Solution. Being the pioneer in the market, the pre-reduced solution set an important industry milestone when it was first launched in 1998.

DyStar’s innovation remains a core catalyst in our chemistry research and development journey. When the DyStar® Indigo Vat 40% Solution was introduced, the core intelligence lies behind the benefits from Sustainability to Health and Safety. The technology transforms Indigo into its soluble Leuco form, making the Indigo dyeing process more sustainable, efficient, and stable in production. In addition, workers in Denim Mills can be assured of product safety as well.

The story started with a huge market demand for the industrial synthesis of Indigo during the late nineteen century. The first Industrial Synthesis of Indigo, Indigo Pure BASF, was successfully manufactured and introduced into the market by BASF in July 1897. It was a significant achievement for the German Chemical Industry.

Over the years, the product has made revolutionary changes to the supply chain. New technologies enabled the transformation of Synthetic Indigo Powder application to pre-reduced DyStar® Indigo Vat 40% Solution. Being the pioneer in the market, the pre-reduced solution set an important industry milestone when it was first launched in 1998.

DyStar’s innovation remains a core catalyst in our chemistry research and development journey. When the DyStar® Indigo Vat 40% Solution was introduced, the core intelligence lies behind the benefits from Sustainability to Health and Safety. The technology transforms Indigo into its soluble Leuco form, making the Indigo dyeing process more sustainable, efficient, and stable in production. In addition, workers in Denim Mills can be assured of product safety as well.

Similarly, in recent modules under Cadira® Denim, DyStar introduced the first salt-free Indigo dyeing process in history. The applied technology completely eliminates hydrosulphite in the application of Indigo.

More information:
DyStar Indigo indigo dyeing process
Source:

Dystar

(c) Stony Creek Colors
22.04.2022

Archroma and Stony Creek Colors produce plant-based pre-reduced indigo

Archroma and Stony Creek Colors (“Stony Creek”), a manufacturer of traceable natural indigo dyes, announced that they have entered a strategic partnership to produce and bring to the market Stony Creek’s IndiGold™ high-performance plant-based pre-reduced indigo at scale.

Stony Creek extracts its dye from proprietary Indigofera plant varieties grown in partnership with family farms as a regenerative rotational crop.

Stony Creek Colors developed the new IndiGold™ concept as on of the world’s first pre-reduced natural indigo dyes, which was then developed with Archroma to offer a plant-based alternative to synthetic pre-reduced indigo. The dyestuff will be sold as a 20% concentration in a soluble liquid form that displays similar performance to comparable synthetic indigo products available on the market.

Stony Creek Colors evolved into an innovative leader in plant-based indigo due to its complete development of an improved agricultural value chain, from seed breeding and production to biomass harvest and extraction. The company has been selling its US grown indigo to denim mills since 2015.

Archroma and Stony Creek Colors (“Stony Creek”), a manufacturer of traceable natural indigo dyes, announced that they have entered a strategic partnership to produce and bring to the market Stony Creek’s IndiGold™ high-performance plant-based pre-reduced indigo at scale.

Stony Creek extracts its dye from proprietary Indigofera plant varieties grown in partnership with family farms as a regenerative rotational crop.

Stony Creek Colors developed the new IndiGold™ concept as on of the world’s first pre-reduced natural indigo dyes, which was then developed with Archroma to offer a plant-based alternative to synthetic pre-reduced indigo. The dyestuff will be sold as a 20% concentration in a soluble liquid form that displays similar performance to comparable synthetic indigo products available on the market.

Stony Creek Colors evolved into an innovative leader in plant-based indigo due to its complete development of an improved agricultural value chain, from seed breeding and production to biomass harvest and extraction. The company has been selling its US grown indigo to denim mills since 2015.

The pre-reduced plant-based indigo partnership took root in 2020 when Stony Creek was looking to work with like-minded partners to produce the new dyestuff at scale. Archroma emerged as the ideal partner as the company is well known for its expertise in indigo manufacturing and application, as well as for its commitment to transform the denim industry towards creating better blue jeans.

Archroma immediately offered to support the idea of Stony Creek Colors with extensive pilot scale manufacturing trials and engaged with its network of denim machinery manufacturers to test the first samples in industrial conditions. The trials showed excellent coloration and the typical indigo wash down, as with synthetic indigo. Archroma will produce the first batches of IndiGold™ in Salvatierra, Mexico, and has other locations where the product could be made. The company will support Stony Creek Colors through its manufacturing and logistics capabilities, and its expertise in denim dyeing with customers using pre-reduced indigo.

While this development was underway, the global innovation platform Fashion for Good selected Stony Creek Colors as an innovator in its global Innovation Program. The program connects brands with innovators to work together to test, validate and ultimately scale disruptive innovations in the fashion industry to drive positive impact. Through the program, Fashion for Good facilitated a collaboration between brand partner Levi Strauss & Co. and Stony Creek Colors which was announced in December 2021. The partners will pilot the use of IndiGold™ in denim mills at scale, with the goal of unlocking key learnings around shade application and other efficiencies of this new dyestuff.

Source:

Archroma / EMG

Archroma and CleanKore join forces to promote sustainable, cost-effective indigo dyeing process (c) CleanKore
Below limits of detection according to industry standard test methods
02.02.2021

Archroma and Cleankore join forces to promote sustainable, cost-effective indigo dyeing process

Reinach, Switzerland, and Westlake, Ohio, 2 February 2021 - 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.

Reinach, Switzerland, and Westlake, Ohio, 2 February 2021 - 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 colors 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% increase in production throughput, as a result of a faster garment wash-down and the elimination of PP spray.

For CleanKore CEO Darryl Costin Jr., the announcement comes at an ideal time for CleanKore: "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, adds: "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."

Source:

Archroma

Warping Mill (c) Velener Textil
02.03.2018

International Cotton Conference Bremen 2018

  • Innovative Textile Processes

Innovations are welcome. Based on innovations, many changes in textile processing are leading to more efficiency in process workflows. At the International Cotton Conference in Bremen on Wednesday, March 21st, Session IV Textile Processing, which takes place from 4:00 pm to 6:00 pm, is dedicated to this subject area and attractive examples.

Sustainable
Michael Tuschak, Mayer & Cie., Germany, informs about the 3-in-1 concept of Spinitsystems. Spinning, cleaning and knitting are all combined in one machine. This enables the production process of high-quality single jersey knitwear to be shortened significantly, which saves energy costs and reduces CO2 emissions.

Indigo.
An old dye returns to glory. Dr. Dean Etheridge of Texas Tech University, USA, talks about a new, innovative indigo dyeing process for cotton yarns using foam. This saves large amounts of water and is now increasingly being used by major brands in jeans production.

  • Innovative Textile Processes

Innovations are welcome. Based on innovations, many changes in textile processing are leading to more efficiency in process workflows. At the International Cotton Conference in Bremen on Wednesday, March 21st, Session IV Textile Processing, which takes place from 4:00 pm to 6:00 pm, is dedicated to this subject area and attractive examples.

Sustainable
Michael Tuschak, Mayer & Cie., Germany, informs about the 3-in-1 concept of Spinitsystems. Spinning, cleaning and knitting are all combined in one machine. This enables the production process of high-quality single jersey knitwear to be shortened significantly, which saves energy costs and reduces CO2 emissions.

Indigo.
An old dye returns to glory. Dr. Dean Etheridge of Texas Tech University, USA, talks about a new, innovative indigo dyeing process for cotton yarns using foam. This saves large amounts of water and is now increasingly being used by major brands in jeans production.

Efficient.
Amin Leder, Trützschler GmbH & Co. KG, Germany, presents a technique in which the stretching process for rotor yarn production does not take place in a separate machine, but is integrated into the carding. This makes it possible to efficiently process even cotton with a higher waste content.

Overview.
Harald Schwippel, from Rieter, Switzerland, summarises all four major spinning technologies for cotton – ring spinning, compact spinning, rotor spinning and air-jet spinning. His talk provides an overview of the possibilities that each of these processes currently offers for the manufacture of different yarns and the most efficient options for different applications.

More to know
In the run-up to the International Cotton Conference, the Fibre Institute Bremen and the Cotton Exchange are organising a specific seminar for spinning mills on Tuesday, dealing with the efficient handling of contaminants in cotton, from elimination in production to removal in winding. On Friday morning, Expert Session IX deals with the exchange of the latest research results, e.g. in the field of ginning in relation to cotton quality, or the important issue of checking the traceability of GMO-free cotton.

Source:

Elke Hortmeyer, Rainer Schlatmann, Baumwollbörse