Research on the process of high-altitude gap lightweight polyester fiber
In the esterification condensation stage of the polymerization process,additives such as ultrafine diatoma-ceous earth are added to prepare a comfortable polyester melt.A certain proportion of water-soluble polyester is added to the aforementioned copolyesters,and a spinning component with irregular spray holes is used to spin poly-ester fibers with a cross shaped cross-section.Using a hot dilute alkaline solution,the water-soluble polyester in the aforementioned fibers is etched and dissolved,forming a high-altitude honeycomb state from the surface to the inte-rior of the fibers.These honeycomb like voids significantly reduce the density of the fibers,while also significantly increasing their breathability and moisture permeability.The research results indicate that the high-altitude gap pol-yester fibers manufactured by this process have excellent breathability and moisture conductivity,and the fabrics formed by the fibers are comfortable,fluffy,and lightweight.
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