Laminate and method of making same
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United States of America Patent
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Jan 19, 2021
Grant Date -
Aug 4, 2016
app pub date -
Feb 2, 2016
filing date -
Feb 4, 2015
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Abstract
A laminate is made by first non-crimping or low-crimping continuous filaments to form a first spunbond layer and preconsolidating the first spunbond layer with a heated or calendering roller. Then continuous filaments with a greater crimp than the continuous filaments of the first spunbond layer are deposited as a second spunbond layer over the first spunbond layer to create a two-layer structure. Finally, the two-layer structure of the first and second spunbond layers is consolidated such that a total thickness of the laminate is 0.15 to 3 mm, preferably 0.2 mm to 2.5 mm and especially 0.2 mm to 2 mm.
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