[특허]Synthetic staple fibers for an air-laid nonwoven fabric

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	D02G-003/00
출원번호	UP-0584468 (2005-02-23)
등록번호	US-7560159 (2009-07-27)
우선권정보	JP-2004-045804(2004-02-23)
국제출원번호	PCT/JP05/003541 (2005-02-23)
§371/§102 date	20060622 (20060622)
국제공개번호	WO05/080658 (2005-09-01)
발명자 / 주소	Goda, Hironori Yamamoto, Nobuyuki
출원인 / 주소	Teijin Fibers Limited
대리인 / 주소	Sughrue Mion, PLLC
인용정보	피인용 횟수 : 37 인용 특허 : 18

초록 ▼

Synthetic staple fibers having good air opening property and useful for producing an air-laid nonwoven fabric having excellent quality, have a fiber length of 0.1 to 45 mm and a cross-sectional profile having 1 to 30 concavities, in which cross-sectional profile the ratio D/L, of a largest depth D o

Synthetic staple fibers having good air opening property and useful for producing an air-laid nonwoven fabric having excellent quality, have a fiber length of 0.1 to 45 mm and a cross-sectional profile having 1 to 30 concavities, in which cross-sectional profile the ratio D/L, of a largest depth D of each concavity to a largest width L of the opening of the concavity, is in the range of from 0.1 to 0.5.

대표청구항 ▼

The invention claimed is: 1. Synthetic staple fibers for an air-laid nonwoven fabric, which staple fibers have a fiber length of 0.1 to 45 mm and a cross-sectioned profile having 1 to 30 concavities each satisfies the requirement: D/L=0.1 to 0.5, wherein D represents a largest distance between a ta

The invention claimed is: 1. Synthetic staple fibers for an air-laid nonwoven fabric, which staple fibers have a fiber length of 0.1 to 45 mm and a cross-sectioned profile having 1 to 30 concavities each satisfies the requirement: D/L=0.1 to 0.5, wherein D represents a largest distance between a tangent line drawn to a pair of convexities from which an opening of the concavity is defined, and a bottom of the concavity, measured in a direction at right angles to the tangent line, and L represents a distance between two points of contact of the pair of convexities with the tangent line. 2. The synthetic staple fibers for an air-laid nonwoven fabric as claimed in claim 1, having a water content of 0.6% by mass or more but not more than 10% by mass. 3. The synthetic staple fibers for an air-laid nonwoven fabric as claimed in claim 1, having a thickness of 5 dtex or less. 4. The synthetic staple fibers for an air-laid nonwoven fabric as claimed in claim 1, having a number of crimps of 0 to 5 crimps/25 mm or 15 to 40 crimps/25 mm. 5. The synthetic staple fibers for an air-laid nonwoven fabric as claimed in claim 1, wherein at least a portion of the peripheral surface of each staple fiber is formed from at least one member selected from the group consisting of polyester resins, polyamide resins, polypropylene resins, high pressure low density polyethylene resins, linear low density polyethylene resins and elastomer resins. 6. The synthetic staple fibers for an air-laid nonwoven fabric as claimed in claim 1, further comprising at least one functional agent adhered to the surfaces of the staple fibers, in an amount of 0.01 to 10% by mass on the basis of the mass of the staple fibers. 7. The synthetic staple fibers for an air-laid nonwoven fabric as claimed in claim 6, wherein the functional agent is selected from the group consisting of deodorant functional agents, antibacterial functional agents, flame retardant functional agents and vermin-repellent functional agents.

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