Conical cheese and method of forming the package of a conical cheese
AssigneeSaurer GmbH & Co. KG
InventorsHeinz-Dieter Göbbels, Gregor Gebald, Friedemann Soll
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Abstract
A method for forming the wound package of a conical cheese on rotor spinning machines, wherein a crossing angle αM in a central zone of the bobbin traverse is less than 28° and a crossing angle αR in the end zones located adjacent the ends of the wound package is increased in respect to the central zone. The cylindrical cheeses thereby produced are distinguished by long running lengths, solid structure, good density distribution and excellent unwinding properties.
Claims8
A method of winding a rotor spun yarn onto a bobbin tube into the form of a conical yarn cheese, the method comprising the steps of traversing a yarn guide along the bobbin tube for winding the yarn onto the bobbin tube at a yarn crossing angle α, the traversing of a yarn guide executing a lesser crossing angle αM in a central zone centrally along the bobbin tube between about 15° and about 28°, and a greater crossing angle αR in end zones outwardly of the central zone adjacent opposite ends of the bobbin tube, wherein the central zone comprises more than about 50% of the entire wound extent of the cheese.
A yarn cheese comprising a rotor spun yarn wound in progressive yarn layers into a conical form on a bobbin tube, each yarn layer having a lesser crossing angle αM in a central zone centrally along the bobbin tube between about 15° and about 28°, and a greater crossing angle αR in end zones outwardly of the central zone adjacent opposite ends of the bobbin tube, wherein the central zone having a reduced crossing angle αM occupies more than about 50% of the entire wound extent of the cheese.
Dependencies are inferred from the claim text.