Textile Technology section
Devan/Jeanologia: less water for antimicrobial and skincare finishes
To further reduce water consumption during the application of the Bi-Ome antimicrobial and R-Vital skincare range, the supplier of specialty chemicals Devan Chemicals NV, Ronse/Belgium, has been working together with the supplier of sustainable technologies for garment finishing, Jeanologia, Paterna/Spain.
With increased attention to climate change and limiting excess water consumption in textile production (whether denim or other textiles), the companies worked together to evaluate the application of Devan finishes onto garments using the patented e-Flow technology.
e-Flow technology can accomplish a considerable number of finishing effects with the highest quality, a minimal amount of water and zero discharge. The technology uses micronization and nebulization to substitute traditional abrasion process and deliver performance chemistry using nano-bubbles instead of water. It reduces the cost of application, saves the amount of water used and ensures that the correct amount of chemistry stays in the garment and not in the water. e-Flow is suitable for every industrial washing machine. This allows the application of Devan’s technologies in a more sustainable way than using traditional application equipment, even for smaller production runs and direct onto garments.
Gregory: transparency in life cycle assessment
Sustainability does not have to take second place to functionality. For the backpack specialist Gregory Mountain Products, Salt Lake City, UT/USA, a data-based life cycle analysis (LCA) of the outdoor backpacks is the guideline for the entire production process.
A specially developed life cycle assessment tool measures the impact of the backpacks on the environment along the entire path from development to disposal. With the new Katmia & Kalmia trekking backpacks and the equally functional Resin daypack, the first 2 series were designed based on these analysis results. Made predominantly from recycled materials, their footprint is up to 58% lower than production with conventional polyamide.
Software developed in cooperation with Thinkstep, Stuttgart/Germany (now Sphera Solutions, Leinfelden-Echterdingen/Germany) analyses the LCA of the backpacks holistically and starts at the product development stage.
This takes into account the manufacture of the raw materials, refinement, production and transport, as well as use and end-of-life of the products. The software enables products to be evaluated and intelligent design decisions to be made which reduce the impact on the environment as much as possible.
In addition to the carbon footprint, 5 other parameters are taken into account in the calculation: Acidification (negative impact on soil, forest and water), water pollution, ozone formation, primary energy demand (energy extracted from the earth) and blue water consumption (net intake and release from production to end of life of the product).
Archroma: new water-saving dyeing process for denim with Jeanologia
The launch of ‘Pad-Ox G2 Cold’, a water-saving dyeing process at room temperature for casual looks, has been announced by the producer of dyes and specialty chemicals Archroma Management LLC, Reinach/Switzerland, and the supplier of sustainable technologies for garment finishing, Jeanologia, Paterna/Spain
Archroma initially introduced its eco-advanced Pad-Ox dyeing process for woven fabrics. By combining the oxidation and fixation steps, it is possible to shorten the dyeing process and thus realize substantial resource savings in water, wastewater, cotton waste, and energy.
Meanwhile, Jeanologia has been working on the technology side, with laser and eco-finishing solutions. Its G2 Dynamic was the first ozone treatment for continuous fabric that reduces the amount of water and chemicals used, thus saving costs further down the textile chain. This technology makes fabric more stable and consistent and prepares the fabric better for the use of other technologies like laser.
In their joint project, the 2 companies have come up with a way to apply the Pad-Ox dyeing process at room temperature, whilst still improving fastnesses and allowing higher contrasts after washdown. The new Pad-Ox G2 Cold dyeing process works thanks to the insertion of very small machinery into the existing finishing range process, using cold processing and thus operating with much less water, carbon footprint and energy than traditional finishing processes, whilst retaining the water and other resource savings offered by the Pad-Ox technology.
James Heal: sustainable water repellency testing
The redeveloped TruRain water repellency tester has been launched by textile testing equipment manufacturer James H. Heal & Co. Ltd., Halifax/UK. The latest release includes an innovative new ‘water recirculation’ feature, which significantly reduces operating costs by 83% and water consumption by 99%.
TruRain is an evolution in sustainable textile testing: a next-generation, artificial rain shower testing instrument, for determining the water repellency of textiles, sustainably. Further benefits include increased throughput and productivity. It is easy to use and tests can be run continuously for 8 hours/day, 5 days/week. Through the use of an effective Water Safety Plan, health and safety can be maintained with no impact on the efficacy and reliability of test results.