Invention Grant
US06589653B2 Filament having a quadrilobate exterior cross-section and a four-sided void
有权
具有四边形外部横截面和四边形空隙的长丝
- Patent Title: Filament having a quadrilobate exterior cross-section and a four-sided void
- Patent Title (中): 具有四边形外部横截面和四边形空隙的长丝
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Application No.: US09924193Application Date: 2001-08-08
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Publication No.: US06589653B2Publication Date: 2003-07-08
- Inventor: Perry Han-Cheng Lin
- Applicant: Perry Han-Cheng Lin
- Main IPC: D01F600
- IPC: D01F600

Abstract:
A synthetic polymer filament is characterized by a four-sided void that extends centrally and axially through the filament. Each apex of the void extends toward the approximate midpoint of one side of the exterior configuration of the filament. The four-sided void has a modification ratio in the range from about 1.2 to about 2.0 and occupies from about five percent 5% to about thirty percent 30% of the cross sectional area of the filament. A spinneret plate for producing the thermoplastic synthetic polymer filament has a cluster of four orifices centered about a central point. Each orifice includes a generally isosceles triangle-shaped major portion from which extends a pair of legs, each leg of one orifice being spaced from the leg of an adjacent orifice to define a gap therebetween.
Public/Granted literature
- US20030039827A1 FILAMENT HAVING A QUADRILOBATE EXTERIOR CROSS-SECTION AND A FOUR-SIDED VOID Public/Granted day:2003-02-27
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