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公开(公告)号：EP1117857A1
公开(公告)日：2001-07-25
申请号：EP99932367.8
申请日：1999-07-09
CPC分类号： D01D5/0985 , D01D5/088 , D04H3/03
摘要： A method and apparatus for improved quenching of nonwoven filaments utilizing a turbulence inducing bar arrangement disposed in a stream of quenching gas between the quenching gas supply apparatus and the group of filaments being extruded. The bar arrangement increases the turbulence of the quenching gas so that the gas applied to the filament group has a turbulence intensity of at least about 5 %. The turbulent quenching gas penetrates the interior of the filament bundle to provide more efficient removal of heat.
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公开(公告)号：EP1554443A1
公开(公告)日：2005-07-20
申请号：EP03776304.2
申请日：2003-10-09
发明人： SCHMIDT, Richard, John , KEPNER, Eric, Scott , FENWICK, Christopher, Dale , FREESE, Chad, Michael
IPC分类号： E04B1/88 , E04B1/84 , B32B5/26 , G10K11/162
CPC分类号： B32B5/26 , B32B5/022 , B32B7/02 , B32B2250/20 , B32B2262/0253 , B32B2307/102 , B32B2419/00 , D04H3/016 , D04H3/147 , E04B1/88 , E04B2001/8461 , G10K11/162 , G10K11/168 , Y10T442/60 , Y10T442/621 , Y10T442/637 , Y10T442/638 , Y10T442/659 , Y10T442/66
摘要： The present invention is a laminate of a low loft layer, the first layer, and a high loft layer, the second layer. More specifically, the present invention provides a nonwoven laminate containing a first layer from thermoplastic spunbond filaments having an average denier less than about 1.8 dpf (2.0 dtex); and a second layer containing thermoplastic multicomponent spunbond filaments having an average denier greater than about 2.3 dpf (2.55 dtex). The laminate has a structure such that the density of the first layer is greater than the density of the second layer and the thickness of the second layer is greater than the thickness of the first layer. Also disclosed is a laminate containing the laminate of a low loft layer containing spunbond filaments having an average denier less than 1.8 dpf (2.0 dtex), a high loft layer containing thermoplastic multicomponent spunbond filaments having an average denier greater than about 2.3 dpf (2.55 dtex)and layer containing a meltblown nonwoven web. The meltblown layer may be between the high loft layer and the low loft layer, adjacent to the high loft layer and opposite the low loft layer, adjacent to the low loft layer and opposite the high loft layer. Additionally, the present invention relates to a thermal or acoustical insulation material which contains the laminate of the high loft layer and the low loft layer, or the laminate of the low loft layer, the high loft layer and a meltblown nonwoven web. Also disclosed is a method of attenuating sound waves passing from a sound source area to a second area. The method includes positioning an acoustical insulation material containing the nonwoven laminate of the present invention between the sound source area and the second area.
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3.发明授权HIGH LOFT LOW DENSITY NONWOVEN WEBS OF CRIMPED FILAMENTS AND METHODS OF MAKING SAME 有权卷曲连续线程的长篇非织造布重量轻，生产工艺
公开(公告)号：EP1456454B1
公开(公告)日：2012-04-25
申请号：EP02787007.0
申请日：2002-12-10
发明人： POLANCO, Braulio, A. , FENWICK, Christopher, Dale , CLARK, Darryl, Franklin , HAYNES, Bryan, David , BROWN, Kurtis, Lee , FREESE, Chad, Michael
CPC分类号： D04H3/16 , D04H1/50 , Y10T428/2922 , Y10T428/2924 , Y10T442/629 , Y10T442/632 , Y10T442/638 , Y10T442/681
摘要： High loft, low density nonwoven webs are produced by forming substantially continuous, spunbond, crimped, bicomponent fibers of A/B side by side morphology in an unheated fiber draw unit. The fibers are then heated and cooled in the absence of impeding forces to achieve maximum crimp in the z-direction and produce a web of loftedmaterial. The resultant material is particularly suitable for use as an insulator. Particulates may be added to the webs if desired.
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4.发明公开HIGH LOFT LOW DENSITY NONWOVEN WEBS OF CRIMPED FILAMENTS AND METHODS OF MAKING SAME 有权卷曲连续线程的长篇非织造布重量轻，生产工艺
公开(公告)号：EP1456454A1
公开(公告)日：2004-09-15
申请号：EP02787007.0
申请日：2002-12-10
发明人： POLANCO, Braulio, A. , FENWICK, Christopher, Dale , CLARK, Darryl, Franklin , HAYNES, Bryan, David , BROWN, Kurtis, Lee , FREESE, Chad, Michael
CPC分类号： D04H3/16 , D04H1/50 , Y10T428/2922 , Y10T428/2924 , Y10T442/629 , Y10T442/632 , Y10T442/638 , Y10T442/681
摘要： High loft, low density nonwoven webs are produced by forming substantially continuous, spunbond, crimped, bicomponent fibers of A/B side by side morphology in an unheated fiber draw unit. The fibers are then heated and cooled in the absence of impeding forces to achieve maximum crimp in the z-direction and produce a web of loftedmaterial. The resultant material is particularly suitable for use as an insulator. Particulates may be added to the webs if desired.
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