Energy-Efficient Yarn Manufacture

Cation-dyeable products stand out with their extremely shiny, lively colors

According to Oerlikon Manmade Fibers, the largest system for manufacturing cation-dyeable yarns has been operating in China with great success for over a year. The installation, with a capacity of 600 tons of POY filament yarn a day, instantly catapults the system operator into the vanguard of cutting-edge producers: with its high-quality products, the well-known Chinese yarn manufacturer has secured itself a 30% market share in China.

An additive in the melt ensures easier and superior uptake of dye, meaning that this special type of yarn uses very little water during the dyeing process, and hence generates less environmental pollution. As a result of (chemically) modifying the polymer, the fibers or filaments score points due to the lower temperatures required within the dyeing process, while producing consistently brilliant dyeing results. The product is visually striking with its extremely shiny, lively colors. Excellent processing properties – with simultaneously extremely low energy consumption and considerably reduced CO2 emissions – ensure a high level of efficiency in the case of this sustainable product.

The high capacity and the favorable production costs associated with the direct spinning process make the yarn considerably more attractive for further processing compared to production methods available to date. This opens up a new, broader application window for cation-dyeable yarns.

International yarn manufacturers have been producing such yarns within the context of the POY and FDY process on machines and systems supplied by the Remscheid-based solutions provider for 30 years now.