[특허]Composite elastic yarns and process for producing them

Composite elastic yarns and process for producing them 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	D02G-003/32 D02J-001/08
출원번호	US-0503500 (1974-09-05)
발명자 / 주소	Strachan Donald Rittler (Martinsville VA)
출원인 / 주소	E. I. Du Pont de Nemours and Company (Wilmington DE 02)
인용정보	피인용 횟수 : 32 인용 특허 : 0

초록 ▼

A composite yarn, which is bulky when relaxed and elongates to at least 100 percent greater length under tension, with quick recovery of the relaxed condition when tension is removed, is composed of uncrimped elastic yarn and at least five relatively inelastic continuous filaments entangled about the elastic yarn to provide protection and desirable textile properties. The composite yarn can be made at unusually high speeds by entangling the relatively inelastic filaments about stretched elastic yarn with jets of high velocity fluid impinged at an angle of 90°±45°to the yarn axis, using a filament feed rate which avoids formation of filament loops in the stretched yarn. Examples illustrate combining spandex elastic yarn at 4X stretch with nylon filaments at zero percent overfeed, when using feed rates of up to 789 yards per minute.

대표청구항 ▼

A composite yarn comprising uncrimped elastic yarn and at least five synthetic filaments of relatively inelastic material to protect the elastic yarn and provide desirable textile properties, the relaxed composite yarn being bulky and capable of being extended at least 100 percent in length when stretched until the relatively inelastic filaments first become load-bearing; said stretched composite yarn being characterized by load-bearing relatively inelastic filaments entangled tightly around the elastic yarn in intermittent zones of random braided structure and otherwise extending substantially parallel to the elastic yarn, there being an average entanglement spacing of less than 10 centimeters and said filaments being essentially free from crunodal or other surface loops when the composite yarn is in said strecthed condition. A process for combining elastic yarn, having a break elongation of greater than 100 percent, with relatively inelastic synthetic polymer filaments to produce a composite yarn, which comprises continuously feeding the elastic yarn with the relatively inelastic filaments through jetted high velocity fluid and impinging the jetted fluid on the yarn axis at an angle of 90°±45°to separate the filaments and entangle the filaments tightly around the elastic yarn in intermittent zones of random braided structure, the elastic yarn being fed under tension sufficient to extend the yarn to at least 100 percent greater length than its relaxed length, and the relatively inelastic filaments being fed at a rate which provides between 2 percent net underfeed and 2 percent net overfeed to the jetted fluid.

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Kramers, Aloysius A. J., Method of forming latent-contractable elastomeric composite yarns.
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Beard McDaniel L. ; Lawson James Lowell ; Isbell James R., Method of selectively altering physical properties of an elastane filament.
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Uchida Takamasa,JPX ; Oka Kazue,JPX, Process for making a spandex supply package.
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Holden ; Gordon Alan, Production of bulky, continuous filament yarn.
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Contant, Mathieu; Beauregard, Marco; Généreux, Marie-Claude; Leblanc, Alexandre, Protective athletic garment.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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Composite elastic yarns and process for producing them 원문보기

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Composite elastic yarns and process for producing them 원문보기

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