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    METHOD AND APPARATUS FOR WARPING USING PROGRESSIVELY CONTROLLED TENSION ON A DYE BEAM AND DYE BEAM GEOMETRY THEREFOR
    1.
    发明公开
    METHOD AND APPARATUS FOR WARPING USING PROGRESSIVELY CONTROLLED TENSION ON A DYE BEAM AND DYE BEAM GEOMETRY THEREFOR 失效
    使用渐变控制张力对其进行加热的方法和装置及其衍射光束

    公开(公告)号：EP0423250A4

    公开(公告)日：1991-10-02

    申请号：EP89912693

    申请日：1989-10-31

    申请人： INSTITUTE OF TEXTILE TECHNOLOGY

    发明人： MOUSSALLI, FRANCIS, S.

    IPC分类号： D06B9/02 ,  B65H55/04 ,  B65H59/00 ,  B65H59/22 ,  B65H75/14 ,  D02H13/26 ,  D06P7/00 ,  D06B5/18

    CPC分类号： B65H55/04 ,  B65H59/225 ,  B65H2515/12 ,  B65H2701/31 ,  B65H2701/38

    摘要： A method and apparatus for winding yarn to produce a wound yarn package (40) having a variable density profile. The variable density profile in the wound yarn is produced by variably tensioning the yarn during the winding process by an electrical apparatus which is responsive to a programmed control signal to provide variable tension on the yarn. The density profile thus produced is preferably a progressively variable density profile. In a preferred embodiment, the method is carried out with a precision winding machine (34) with an electromagnetic tensioner (36). A controlled sequence of control signals is applied to the tensioner (36) to provide a correspondingly varying tension on the yarn. The application of controlled tensioning to dyeing beams by progressively increasing tensioning warping yarn along the length of the beam has also shown improved results in resisting dye liquor channeling and blowout and permitted a beam geometry with a greater capacity.