Production process of engineering fibre for polyester road

Production process of engineering fibre for polyester road

  • CN 1,467,315 B
  • Filed: 06/18/2003
  • Issued: 04/28/2010
  • Est. Priority Date: 06/18/2003
  • Status: Active Grant
First Claim
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1. the production technology of a polyester road usefulness technical fiber specially is applied to rise in the asphalt booster action, and fiber selects for use raw material to comprise polyester slice, polyester raw material and PET section, it is characterized in that production process comprises:

  • (1) preliminary treatment of raw material;

    with water-tight equipment vacuum, tackify drying process, raw material is reached the index of aridity less than 0.2 ‰

    earlier, inherent viscosity is more than 0.8;

    (2) will be the raw material input sealing spinning feed bin of vacuum, tackify drying, by the screw rod melt extruded to the spinning manifold assembly, then through spray silk, ring blast-cold but, air channel predraft, coiling and molding be the noodles silk;

    (3) the noodles silk boundling of coiling and molding becomes 60-70 after ten thousand dawn, deliver to first five roller drawing machine by the tension mixing, carry out oil bath by the deep fat groove and stretch, stretch to second five roller drawing machine again, add heat activated agent, stretch to the 3rd five roller drawing machine, add heat activated agent and cross hot-stretch, carry through tension, compacting again, to typing drier dryness finalization, through cutting off finished product packing.

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