To provide a composite spinneret forming various fiber cross-sectional shapes with high accuracy, and maintaining the dimensional stability of the cross-sectional shapes at a high level when producing a sea-island type conjugated fiber.
The composite spinneret is used for ejecting a composite polymer stream composed of the sea and island. The composite spinneret includes: one or more distribution plates in which distribution holes and/or distribution grooves for distributing polymer components are formed; a lowermost layer distribution plate 5 located on the downstream side in the polymer spinning passage direction of the distribution plates, wherein a plurality of island component ejecting parts and a plurality of sea component ejecting parts are formed, wherein each island component ejecting part is composed of one or more island component ejecting holes 1 for ejecting the island component polymer, each sea component ejecting part is composed of one or more sea component ejecting holes 4 for ejecting the sea component polymer; and at least a part of the sea component ejecting parts present in a region surrounded by the two adjacent island component ejecting parts having the shortest distance between centers, and two common circumscribing lines of the two island component ejecting parts.
MIZUKAMI SEIJI
MASUDA MASATO
| JP2007039858A | 2007-02-15 | |||
| JPS4418369B1 | ||||
| JPS54156813A | 1979-12-11 | |||
| JPS6375107A | 1988-04-05 | |||
| JPH0726420A | 1995-01-27 | |||
| JPH073529A | 1995-01-06 | |||
| JP2007039858A | 2007-02-15 | |||
| JPS4418369B1 | ||||
| JPS54156813A | 1979-12-11 | |||
| JPS6375107A | 1988-04-05 |
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