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公开(公告)号：EP1463632B1
公开(公告)日：2013-05-15
申请号：EP02805978.0
申请日：2002-12-18
Applicant: Invista Technologies S.à.r.l.
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公开(公告)号：EP1463632A1
公开(公告)日：2004-10-06
申请号：EP02805978.0
申请日：2002-12-18
Applicant: Invista Technologies S.à.r.l.
CPC classification number: B32B5/26 , B32B3/28 , B32B5/04 , B32B7/02 , B32B7/14 , B32B27/06 , Y10T428/24826
Abstract: A multi-layer composite sheet comprising a shrinkable layer (11’) intermittently bonded a to a gatherable layer (10’, 12’) with the bonds (13’) separated by a specified distance (d’)and wherein the shrinkable layer (11’) can shrink and at the same time gather the gatherable layer (10’, 12’) between the bonds (13’). A process for preparing multi-layer composite sheets by intermittently bonding a shrinkable layer (11’) to a gatherable layer (10’, 12’) with the bonds (13’) separated by a specified distance (d’) and causing the shrinkable layer (11’) to shrink while at the same time gathering the gatherable layer (10’, 12’) between the bonds (13’). Preferably, the shrinkable layer (11’) comprises an array of fibers or nonwoven web comprising fibers having latent spiral crimp.
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公开(公告)号：EP1456017A1
公开(公告)日：2004-09-15
申请号：EP02797526.7
申请日：2002-12-13
Applicant: Invista Technologies S.à.r.l.
Inventor： ZAFIROGLU, Dimitri, P. , HIETPAS, Geoffrey, David , MASSOUDA, Debora, Flanagan , FORD, Thomas, Michael
CPC classification number: D01F8/14 , B32B5/04 , B32B5/26 , D04H1/4374 , D04H1/4391 , D04H1/559 , D04H3/018
Abstract: This invention relates to an improved method for preparing stretchable multiple-component bonded composite sheets which involves bonding a fibrous layer of spirally-crimpable multiple-component continuous filaments or staple fibers to one or more non-spirally-crimpable layers using an array of intermittent mechanical, chemical, or thermal bonds, and heating the bonded composite to activate the spiral crimp of the fibers in the spirally-crimpable layer. Multi-layer nonwoven fabrics prepared according to the method of the current invention have an improved combination of strength, aesthetics, stretch-recovery properties, and textile hand and drape compared to multiple-component nonwoven fabrics known in the art.
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Patent Agency Ranking4.发明授权
公开(公告)号：EP1456445B1
公开(公告)日：2005-10-26
申请号：EP02791417.5
申请日：2002-12-16
Applicant: INVISTA Technologies S.à.r.l.
Inventor： ZAFIROGLU, Dimitri, P. , HIETPAS, Geoffrey, David , MASSOUDA, Debora, Flanagan , FORD, Thomas, Michael
CPC classification number: D04H5/00 , D04H1/435 , D04H1/4382 , D04H1/4391 , D04H1/50 , D04H3/00 , D04H3/14 , Y10T428/2922 , Y10T428/2925 , Y10T428/2929 , Y10T428/2936 , Y10T442/601 , Y10T442/627 , Y10T442/629 , Y10T442/632 , Y10T442/635 , Y10T442/637 , Y10T442/638 , Y10T442/64 , Y10T442/641 , Y10T442/69 , Y10T442/697
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公开(公告)号：EP1456452A1
公开(公告)日：2004-09-15
申请号：EP02784800.1
申请日：2002-12-17
Applicant: Invista Technologies S.à.r.l.
Inventor： ZAFIROGLU, Dimitri, P. , HIETPAS, Geoffrey, David
CPC classification number: D04H3/14 , D04H1/06 , D04H1/50 , D04H1/541 , D04H1/55 , D04H3/02 , Y10T442/627 , Y10T442/629 , Y10T442/632 , Y10T442/635 , Y10T442/637 , Y10T442/69 , Y10T442/692 , Y10T442/697
Abstract: This invention relates to a method for preparing nonwoven fabrics having an improved balance of properties in the machine and cross-directions. More specifically, the invention utilizes nonwoven webs that include relatively low levels of multiple-component fibers having latent three-dimensional spiral crimp combined with fibers that do not develop spiral crimp. The latent spiral crimp of the multiple-component fibers is activated, such as by heating, under free shrinkage conditions, after formation of the nonwoven web to achieve re-orientation of the non-spirally-crimpable fibers and an improved balance of properties such as tensile strength and modulus.
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6.发明公开
公开(公告)号：EP1456445A1
公开(公告)日：2004-09-15
申请号：EP02791417.5
申请日：2002-12-16
Applicant: Invista Technologies S.à.r.l.
Inventor： ZAFIROGLU, Dimitri, P. , HIETPAS, Geoffrey, David , MASSOUDA, Debora, Flanagan , FORD, Thomas, Michael
CPC classification number: D04H5/00 , D04H1/435 , D04H1/4382 , D04H1/4391 , D04H1/50 , D04H3/00 , D04H3/14 , Y10T428/2922 , Y10T428/2925 , Y10T428/2929 , Y10T428/2936 , Y10T442/601 , Y10T442/627 , Y10T442/629 , Y10T442/632 , Y10T442/635 , Y10T442/637 , Y10T442/638 , Y10T442/64 , Y10T442/641 , Y10T442/69 , Y10T442/697
Abstract: A method for preparing stretchable bonded nonwoven fabrics which involves forming a substantially nonbonded nonwoven web of multiple-component continuous filaments or staple fibers which are capable of developing three-dimensional spiral crimp, activating the spiral crimp by heating substantially nonbonded web under free shrinkage conditions during which the nonwoven remains substantially nonbonded, followed by bonding the crimped nonwoven web using an array of discrete mechanical, chemical, or thermal bonds. Nonwoven fabrics prepared according to the method of the current invention have an improved combination of stretch-recovery properties, textile hand and drape compared to multiple-component nonwoven fabrics known in the art.
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公开(公告)号：EP1456452B1
公开(公告)日：2008-03-19
申请号：EP02784800.1
申请日：2002-12-17
Applicant: INVISTA Technologies S.à.r.l.
Inventor： ZAFIROGLU, Dimitri, P. , HIETPAS, Geoffrey, David
CPC classification number: D04H3/14 , D04H1/06 , D04H1/50 , D04H1/541 , D04H1/55 , D04H3/02 , Y10T442/627 , Y10T442/629 , Y10T442/632 , Y10T442/635 , Y10T442/637 , Y10T442/69 , Y10T442/692 , Y10T442/697
Abstract: This invention relates to a method for preparing nonwoven fabrics having an improved balance of properties in the machine and cross-directions. More specifically, the invention utilizes nonwoven webs that include relatively low levels of multiple-component fibers having latent three-dimensional spiral crimp combined with fibers that do not develop spiral crimp. The latent spiral crimp of the multiple-component fibers is activated, such as by heating, under free shrinkage conditions, after formation of the nonwoven web to achieve re-orientation of the non-spirally-crimpable fibers and an improved balance of properties such as tensile strength and modulus.
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公开(公告)号：EP1456017B1
公开(公告)日：2007-03-07
申请号：EP02797526.7
申请日：2002-12-13
Applicant: INVISTA Technologies S.à.r.l.
Inventor： ZAFIROGLU, Dimitri, P. , HIETPAS, Geoffrey, David , MASSOUDA, Debora, Flanagan , FORD, Thomas, Michael
CPC classification number: D01F8/14 , B32B5/04 , B32B5/26 , D04H1/4374 , D04H1/4391 , D04H1/559 , D04H3/018
Abstract: This invention relates to an improved method for preparing stretchable multiple-component bonded composite sheets which involves bonding a fibrous layer of spirally-crimpable multiple-component continuous filaments or staple fibers to one or more non-spirally-crimpable layers using an array of intermittent mechanical, chemical, or thermal bonds, and heating the bonded composite to activate the spiral crimp of the fibers in the spirally-crimpable layer. Multi-layer nonwoven fabrics prepared according to the method of the current invention have an improved combination of strength, aesthetics, stretch-recovery properties, and textile hand and drape compared to multiple-component nonwoven fabrics known in the art.
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