Spin annealed poly (trimethylene terephthalate) yarn

Spin annealed poly (trimethylene terephthalate) yarn

  • CN 1,771,357 A
  • Filed: 02/04/2004
  • Published: 05/10/2006
  • Est. Priority Date: 02/05/2003
  • Status: Active Application
First Claim
Patent Images

1. method comprises:

  • (a) extrude fusion poly terephthalic acid Sanya methyl esters through spinnerets;

    (b) the poly terephthalic acid Sanya methyl esters extruded of quenching forms solid-state silk strand, and 130 ℃

    of tension force of wherein said silk are for more than about 0.02g/d;

    (c) make above-mentioned silk to the thermal conductance roll dies heating strand with a kind of speed and temperature operation, wherein heating the described speed of strand and temperature, to be enough to provide DWS value be about 4% or littler yarn;

    (d) cooling gained yarn is to about 35 ℃

    or lower temperature.

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