Method for producing drawn conjugated fiber, and drawn conjugated fiber
Number of patents in Portfolio can not be more than 2000
United States of America
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Apr 1, 2025
Grant Date -
Jan 5, 2023
app pub date -
Sep 2, 2022
filing date -
Sep 2, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are a method for producing a drawn conjugated fiber, capable of producing a conjugated fiber having a high strength and a thin fineness, and a drawn conjugated fiber. A drawn conjugated fiber is produced by performing a spinning step of obtaining an undrawn fiber having a core-sheath structure in which a core material is a resin containing, as a main component, a crystalline propylene polymer and a sheath material is a resin containing, as a main component, an olefin polymer having a melting point lower than that of the core material, by means of melt-spinning (step S1); and a drawing step of drawing the undrawn fiber (step S2).
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International Classification(s)
- D01D:MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE....
- B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....
- D02J:FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS....
- B29K:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, ....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
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