Title:
YARN GUIDE
Document Type and Number:
Japanese Patent JP3556250
Kind Code:
B2
Abstract:
PURPOSE: To concurrently satisfy the improvement of yarn quality and the reduction of friction resistance and perform the fiber manufacturing process at a high speed by forming a yarn guide section with a composite ceramic containing free carbon, and specifying the center line average roughness (Ra) of the surface.
CONSTITUTION: This yarn guide 1 is formed into a pin shape, and the whole is made of a composite ceramic containing free carbon. The center line average roughness (Ra) of the surface 1a guiding the yarn of the yarn guide 1 is set to 0.4μm or below to form a smooth face. When a fiber 2 is guided on the surface 1a, such trouble that fuzzing occurs on the fiber 2 can be prevented because the surface 1a is a smooth face. Since the yarn guide 1 itself contains free carbon having a self-lubricating action, the friction resistance with the fiber 2 can be reduced, and a high yarn feeding speed can be coped with. A metal oxide or a metal carbide such as alumina, zirconia, silicon carbide, or the like is used for the composite ceramic containing free carbon.
Inventors:
Atsuko Suzuki
Application Number:
JP27239893A
Publication Date:
August 18, 2004
Filing Date:
October 29, 1993
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
B65H57/24; (IPC1-7): B65H57/24
Domestic Patent References:
| JP5012449U | ||||
| JP61215257A | ||||
| JP5201619A |