Production technology of flat filament polyester top
A production process and technology of flat yarns, which are applied in the bundling of newly sprayed yarns, heat treatment of artificial filaments, melt spinning, etc., can solve the problem of limited number of furs, etc. long effect
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[0015] The present invention will be further described in detail below in conjunction with specific embodiments.
[0016] The production process of flat polyester wool tops, the process steps are as follows: raw material drying→screw extrusion and spinning→winding and clustering→post-treatment of tow→cutting of tow and making sliver→one needle comb→two needle combs→ball needle comb ,
[0017] (1) In the raw material drying process: polyester chips are used as raw materials and dried in a vacuum drum device;
[0018] (2) In the screw extrusion and spinning process: in the screw extruder, the dried polyester chip raw materials are melted and extruded and sprayed, and the polyester chip raw materials are driven by a screw with a rotating speed of 60m / s. Preheat through zone 1 and zone 2 of the screw extruder in sequence, the temperature of zone 1 is 270°C, the temperature of zone 2 is 275°C; then melt through zone 3 and zone 4 in sequence, the temperature of zone 3 is 280°C , t...
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