Invention Grant
US09303340B2 Process for creating a variable density, high loft, non-woven web structure 有权
用于创建可变密度,高放大,无纺布网状结构的方法

Process for creating a variable density, high loft, non-woven web structure
Abstract:
A process is disclosed for creating air laid, high loft, non-woven, variable density web structures. The fiber manipulation and distribution necessary to produce a variable weight and density web is accomplished by creating variable, negative pressure regions across the surface of a condenser or other vacuum screen, which causes fibers to migrate toward areas of lower pressure. Also disclosed are embodiments of condenser and vacuum screens for producing such variable density web structures.
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