PRODUCTION OF POLYURETHANE ELASTIC FIBER

PURPOSE:To prevent polyurethane elastic yarn from sticking among the yarns, suppress the cob-webbing or collapsing of the yarn on a bobbin and obtain the high-quality polyurethane elastic yarn good in unwinding properties by applying a polyallylamine aqueous emulsion to yarn melt discharged from a s...

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Bibliographic Details
Main Authors YOSHIMOTO SEI, FUJIMURA KAZUO
Format Patent
LanguageEnglish
Published 13.06.1995
Edition6
Subjects
APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS
NATURAL OR ARTIFICIAL THREADS OR FIBRES
SPINNING
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Summary:PURPOSE:To prevent polyurethane elastic yarn from sticking among the yarns, suppress the cob-webbing or collapsing of the yarn on a bobbin and obtain the high-quality polyurethane elastic yarn good in unwinding properties by applying a polyallylamine aqueous emulsion to yarn melt discharged from a spinneret and subsequently applying a nonaqueous oiling agent thereto. CONSTITUTION:This method for producing polyurethane elastic fiber comprises applying an aqueous emulsion containing a polyallylamine expressed by formula I [(n) is 20-20000] to yarn discharged from a spinneret and subsequently applying a nonaqueous oiling agent consisting essentially of a mineral oil or methylpolysiloxane, etc., thereto in melt spinning a polyurethane.
Bibliography:Application Number: JP19930321248