纯涤细号喷气涡流纱无PVA低上浆工艺实践OA

Key points of low sizing percentage without PVA for pure polyester fine air jet vortex yarn were summarized.The structural characteristics of pure polyester air jet vortex yarn and the sizing requirements for warp were analyzed.The adhesion force of PVA and QL-89 to polyester and cotton was examined.The moisture absorption and sized film strength&elongation property of PVA,QL-89 and other acrylic sizing materials were compared.Using a specific fabric variety as an example,corn starch was used as the main size material,supplemented by TP sizing agent and the acrylic sizing agent QL-89.The principle of"medium pressure,low concentration,low viscosity,small sizing percentage and low elongation"was adopted.The practice proved that for air jet vortex T 13×13 433×315 239 cm plain fabric,50 kg of corn starch supplemented by 10 kg of QL-89 and 6 kg of TP sizing agent,with sizing percentage of 6.2%and moisture regain rate of 0.9%,the loom efficiency reached 93%~94%.It is considered that the formulation without PVA combined with appropriate sizing process,the goals of strength enhancement,elongation retention and abrasion resistance could be achieved,high-quality and efficient weaving production could be realized.