Title:
精密巻き付け弾性合成糸とその製法
Document Type and Number:
Japanese Patent JP5477825
Kind Code:
B2
Abstract:
A method of winding an elastomeric yarn, such as spandex, onto a spool includes the steps of providing a spool; providing an elastomeric yarn; rotating the spool at a speed to define a spool rotation speed; moving the yarn traversely with respect to the spool in an alternating to and fro manner to define a traverse frequency; winding the yarn onto the spool; controlling the ratio of the spool rotation speed to the traverse frequency to define a wind ratio during the winding of the yarn onto the spool; and decreasing the traverse speed as the yarn is wound onto the spool in an inverse proportion to an amount of yarn that has been wound. The winding of the yarn onto the spool forms a yarn cake on the spool. The traverse speed may be decreased in inverse proportion to a diameter of the yarn cake. The method may further include the step of shifting the yarn by a pitch for each rotation of the spool.
Inventors:
Coscor, Joseph Y
Application Number:
JP2011534648A
Publication Date:
April 23, 2014
Filing Date:
October 23, 2009
Export Citation:
Assignee:
INVISTA TECHNOLOGIES S.a.r.l.
International Classes:
B65H54/38; B65H54/04; B65H54/08; B65H55/04
Domestic Patent References:
| JP2008019061A | ||||
| JP7089671A | ||||
| JP6025262U | ||||
| JP2003502523A |
Attorney, Agent or Firm:
Seiji Ohno
Ken Kitano
Hiroshi Otani
Natsuki Ito
Ken Kitano
Hiroshi Otani
Natsuki Ito