FIBER PRODUCTION METHOD AND CARBON FIBER PRODUCTION METHOD
A fiber production method for ejecting a spin dope made by dissolving a fiber-forming polymer in a solvent from a spinneret 1 and after first running the same through air, guiding the fiber into the liquid of a coagulation bath 4 and coagulating the same, wherein: the gas stream of a gas phase secti...
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| creator | NAGASAKA TAKUYA MATSUBARA YUMA FURUKAWA NAOYUKI NAGANO SEIJI ISHIO KEIICHI YANO FUMIYA |
| description | A fiber production method for ejecting a spin dope made by dissolving a fiber-forming polymer in a solvent from a spinneret 1 and after first running the same through air, guiding the fiber into the liquid of a coagulation bath 4 and coagulating the same, wherein: the gas stream of a gas phase section, which is formed vertically downward between the discharging surface of the spinneret 1 and the liquid surface of the coagulation bath 4, is unidirectional; and the air flow (Af) per unit time with respect to the amount of solvent (As) in the spin dope per unit time in the gas phase section volume (Vh) satisfies the relational expression 0.0008 m3= |
| format | Patent |
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In the context of dry-jet wet spinning, the fiber production method provided by the present invention: inhibits the generation of condensation on the spinneret; improves winding onto a roller in a subsequent step and mitigates quality reduction due to fuzz and yarn breakage in the drawing step; and can greatly increase overall productivity and</description><language>chi ; eng</language><subject>APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS ; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS ; MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS ; NATURAL OR ARTIFICIAL THREADS OR FIBRES ; SPINNING ; TEXTILES</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190913&DB=EPODOC&CC=CN&NR=110234802A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190913&DB=EPODOC&CC=CN&NR=110234802A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAGASAKA TAKUYA</creatorcontrib><creatorcontrib>MATSUBARA YUMA</creatorcontrib><creatorcontrib>FURUKAWA NAOYUKI</creatorcontrib><creatorcontrib>NAGANO SEIJI</creatorcontrib><creatorcontrib>ISHIO KEIICHI</creatorcontrib><creatorcontrib>YANO FUMIYA</creatorcontrib><title>FIBER PRODUCTION METHOD AND CARBON FIBER PRODUCTION METHOD</title><description>A fiber production method for ejecting a spin dope made by dissolving a fiber-forming polymer in a solvent from a spinneret 1 and after first running the same through air, guiding the fiber into the liquid of a coagulation bath 4 and coagulating the same, wherein: the gas stream of a gas phase section, which is formed vertically downward between the discharging surface of the spinneret 1 and the liquid surface of the coagulation bath 4, is unidirectional; and the air flow (Af) per unit time with respect to the amount of solvent (As) in the spin dope per unit time in the gas phase section volume (Vh) satisfies the relational expression 0.0008 m3=<Af/(As/Vh) =<0.0015 m3. 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In the context of dry-jet wet spinning, the fiber production method provided by the present invention: inhibits the generation of condensation on the spinneret; improves winding onto a roller in a subsequent step and mitigates quality reduction due to fuzz and yarn breakage in the drawing step; and can greatly increase overall productivity and</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES |
| title | FIBER PRODUCTION METHOD AND CARBON FIBER PRODUCTION METHOD |
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