Abstract
AbstractThis paper is devoted to study the chemical, physical and mechanical properties of various advanced polyesters and their influence on dyeing performances. Four kinds of filaments are used and compared: two PET monofilaments with different geometries were investigated and namely: (A) circular and (B) cross-sectional shapes, (C) PTT monofilaments with tetrachannel shapes, and (D) bicomponent PET/PTT filaments. The influence of dyeing parameters (temperature, time and carrier concentration) on dyeing performances (color strength, CIELab coordinates) was investigated and optimized using Box-Behnken experimental design. Comparing results showed that PET/PTT bicomponent filaments (D) have a lower percentage of crystallinity and a lower value of glass transition temperature which gives them an excellent dyestuff affinity compared to the other monofilaments. KeywordsPolyester filamentsBicomponent filamentsDyeingBox-Behnken experimental design
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