Raw Materials
Rieter technologies ensure that precious raw materials are preserved, and fiber consumption is reduced. They also facilitate the processing of sustainable and recycled fibers. Rieter is advancing innovative solutions so raw materials can be used sustainably, creating value for customers and the planet.
New possibilities with spun-dyed viscose fibers
Another approach to meet the demand for environmentally-friendly textile production is to dye fibers during their manufacture, which is when color pigments are added directly to the spinning solution. The conventional procedure for dyeing textile fabrics, such as knits or wovens, is an expensive process that consumes a lot of water, energy and chemicals.
The results of a study show that processing spun-dyed viscose fibers on an air-jet spinning system has great advantages in terms of quality and efficiency.
Spinning waste with high efficiency and quality
How can yarn be manufactured out of high amounts of waste and still meet quality requirements? The results of a Rieter study show that the higher the short-fiber content, the better the effect of shortening the spinning process. Because a high short-fiber content in the raw material also increases the risk of uncontrolled drafts or fiber package-build up during spinning preparation.
The direct rotor spinning process has proven to be the best process for high short-fiber content, as it reduces total draft. The yarn and fabric quality benefit. Conversion costs are reduced because fewer machines are needed: The autoleveled draw frame module RSB-Module 50 is connected directly to the card, from where the sliver is transported directly to the rotor spinning machine.
Improving yield by up to 2% with a Rieter system
Customers who opt for a complete Rieter system to spin compact yarn, for example, benefit from a perfectly synchronized spinning mill supplied from one source. A Rieter compact-spinning system achieves raw-material savings of 1 to 2% compared to a mixed one that comprises machines from different manufacturers. In addition to the high yarn quality, waste reduction is a key factor in the compact-spinning of combed cotton and improves resource efficiency.
Excellent yield in ring spinning
Low raw material loss is achieved in the blowroom line VARIOline thanks to the optimum combination of microtufts, VARIOset function and progressive cleaning. The high-performance cards C 80 with maximum technological cross section and the pre- and post-carding zones that can be equipped individually ensure excellent raw material utilization.