Cationic-dyeable polyester fibre is a special polyester fibre that can be coloured with cationic dye, unlike ordinary polyester fibres. Excellent colour development and fastness have enabled cationic-dyeable polyester fibres to be used in many applications.
The to date largest system for cationic dyeable yarns has been manufacturing in China with great success for over 3 years now. 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 cationic dyeable yarns.