Polyester staple fiber production process
A polyester staple fiber and production process technology, which is applied in the production process field of polyester staple fiber, can solve the problems of high temperature of fiber filaments, easy to break, insufficient refinement in the setting stage, poor spinnability of pulp, etc., so as to prevent mutual The effect of blocking, lowering temperature, improving spinnability
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[0055] The present invention will be further described in detail below in conjunction with the drawings.
[0056] Reference figure 1 , Is a production process of polyester staple fiber disclosed in the present invention, including the following steps:
[0057] S1, raw material pretreatment
[0058] Add the raw materials to the drying drum for drying. The drying temperature of the drying drum is 180°, and the drying time is 9 hours; when the material is dried, after the temperature in the drying drum reaches 160°, the vacuum system is activated to make the vacuum in the drying drum The temperature reaches -0.09Pa and keep it for 7 hours. After the drying is completed, the temperature in the drying drum will reach 60°, and then discharge the material to the pit to avoid the surface of the raw material where the discharge temperature is too high and the moisture in the air adheres again.
[0059] S2, lift the material to the dry silo
[0060] The raw material after drying in the pit is l...
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