NONWOVEN FABRIC AND NONWOVEN FABRIC MANUFACTURING METHOD
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United States of America Patent
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Issued Date -
Dec 22, 2022
app pub date -
Aug 24, 2022
filing date -
Aug 24, 2022
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Abstract
A nonwoven fabric manufacturing facility includes a fiber assembly manufacturing step and a heating and drawing step. In the fiber assembly manufacturing step, fibers formed using an electrospinning method are collected to form a fiber assembly. In the heating and drawing step, the fiber assembly is drawn to form nonwoven fabric in a state where the fiber assembly is heated to a melting point of the fibers. In the formed nonwoven fabric, an average pore diameter is 15 μm or more, a relative standard deviation of a pore diameter distribution is 0.1 or less, and an average fiber diameter of the fibers is 3 μm or less.
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