A small cotton mill in China produces coloured yarn from a blend of recycled cotton and polyester with the semi-automated rotor spinning machine R 37 gets downstream customers appreciation.
Cangnan Zijian Cotton Co., Ltd. is located in Cangnan County, Zhejiang Province, China, and is specialized in the production of recycled woven denim yarns Ne 7 and Ne 10. These are mainly sold in domestic markets. Zijian uses a blend of recycled cotton and polyester as raw material. They categorize waste cloth according to color, open it up to single fibres and blend it with polyester. This blend is directly processed into colored yarn (Fig. 1). With the Rieter semi-automated rotor spinning machine R 37, Cangnan Zijian profits from efficient yarn production and meets the weaving requirements of downstream customers. Customers likes their high yarn quality and the sustainable production.
If the yarn quality is inadequate for weaving mills due to yarn breaks and imperfections, spinning mills may face financial penalties.
The semi-automated rotor spinning machine R 37 is the right choice for colored recycled fibres. Cangnan Zijian profits from maximum flexibility also for smaller lots with different colors. Independent machine sides open up the possibility to spin different lots on each side. Thanks to the new spinning box, the extraction of trash and short fibres becomes more selective, which is especially helpful when processing recycled fibres. The loss of good fibres is reduced. The yarn quality meets customers’ high expectations, offering good tenacity and low imperfections for great weaving results. Low energy consumption and easy, time-saving handling by operating personnel minimize production costs.
As the recycled fibres are already colored the yarn no longer needs to be dyed in the downstream processes in R 37 machine. This makes the production more sustainable as water pollution and the use of chemicals are reduced. An important fact that makes the yarn even more popular with yarn traders and weavers.