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Nonwoven material production method having isolated three-dimensional deformations with wide-base openings
Nonwoven material production method having isolated three-dimensional deformations with wide-base openings
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机译:具有宽底孔的孤立三维变形的非织造材料生产方法
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摘要
The present invention relates to a method of forming deformations in a nonwoven web that includes the steps of: a) providing a precursor nonwoven web; b) providing a pair of forming elements comprising: a first forming element having a surface comprising a plurality of spaced apart and isolated male forming elements; and a second forming element having a surface comprising a plurality of recesses in the second forming element, wherein the recesses are aligned and configured to receive male forming elements therein, wherein the recesses have a periphery; planar, which is larger than and may completely surround the periphery, plan view, of the male elements; and c) mechanically deforming the precursor nonwoven web with the forming elements by placing the precursor nonwoven web between the forming elements. The method forms a nonwoven mat having a generally flat first region and a plurality of isolated deformations. the deformations form protrusions extending outwardly from the first surface of the nonwoven web and a base opening adjacent the second surface of the nonwoven web. The maximum inner width of the lid portion of the protuberances is wider than the width of the base opening.
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