Method of producing a yarn and an apparatus for carrying out thi

Details Method of producing a yarn and an apparatus for carrying out thi Method of producing a yarn and an apparatus for carrying out thi

1989-12-11

1992-01-28

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

28245, 57288, 57310, 2642907, D02G 338, D02J 122

Patent

active

050834193

ABSTRACT:
In a method and apparatus for producing a yarn, a synthetic pre-oriented multifilament yarn is fed at a first velocity to a non-heated pin having a diameter less than 10 mm. After turning the yarn around the pin for an angle between 270.degree. and 360.degree., the yarn is heated to a temperature between 100.degree. C. and 250.degree. C. for between 0.01 sec and 10 sec. The yarn is then drawn off the pin at a second viscosity higher than the first velocity.

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patent: 4615167 (1986-10-01), Greenberg

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