From the Sector

• 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.

An exciting new development, resulting from a Swiss collaboration between textile manufacturer Schoeller and auxiliaries and dyes specialists at Textilcolor. ecodye is a new auxiliary concept used, in particular, in polyester dyeing processes. The technology accelerates the dyeing process and contributes to cutting costs, while at the same time helping to preserve the environment with a low level of demand on resources.
Less time, less water, less energy – the new ecodye auxiliary concept allows eco-friendly and cost-saving dyeing processes for polyester yarns and piece goods. It shortens the heating phase, thus accelerating process time by more than 30 percent. At the same time, it reduces energy consumption by 20 percent and the water requirement by 25 percent, as the goods can be cleaned in the cooling dye bath.
In addition, ecodye improves the dyeing levelness in polyester textiles. Spots and dye agglomeration are almost completely avoided, and the precipitation on the goods that arises as a result of polyester oligomers are no longer evident. ecodye provides good shade stability and avoids reproduction problems from batch to batch, thus reducing the rate of double staining and increasing the capacity utilization and productivity of the dyeing mill on a long-term basis.

Following a successful launch phase, ecodye has already been able to provide numerous positive test results. The technology is being used by polyester-processing customers in categories including outdoor, sportswear and technical knitted fabrics, primarily in Europe, South and Middle America, Turkey, Bangladesh and China.