Soft loop laminate and method of making
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United States of America Patent
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Mar 30, 1999
Grant Date -
N/A
app pub date -
Jul 3, 1997
filing date -
Jul 3, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
There is provided a soft nonwoven fibrous loop material for use in hook and loop fastening systems. The nonwoven fibrous loop material of the invention contains an open fibrous loop layer comprised predominately of polypropylene polymer, copolymer or blend fibers. The nonwoven fibrous loop layer material is autogeneously bonded to a backing layer formed of polypropylene polymers or copolymers having a percent isotacticity of less than 70%, optionally with additional layers present provided so that the overall nonwoven fibrous loop material is a laminate having a circular bend stiffness of less than about 9 Newton and having tensile strength of at least 1500 g/2.54 cm-width.
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