HIGH DENSITY ARTIFICIAL LEATHER HAVING EXCELLENT SURFACE TOUCH AND METHOD OF MANUFACTURING THE SAME
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United States of America Patent
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Sep 13, 2018
app pub date -
Nov 3, 2017
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Nov 3, 2017
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A method for manufacturing a high density artificial leather, may include (a) manufacturing a long fiber-type non-woven fabric having an areal weight of 400 to 500 g/m2 and an apparent density of 0.3 to 0.6 g/cm3 by self-twist spinning a sea component polymer fiber and an island component polymer fiber; (b) shrinking the long fiber-type non-woven fabric with hot water; (c) eluting the sea component polymer fiber from the shrunken non-woven fabric by immersing the shrunken non-woven fabric in an aqueous alkaline solution; and (d) impregnating a polymer elastomer in a non-woven fabric from which the sea component polymer fiber is eluted, to manufacture a long fiber-type fine yarn non-woven fabric.
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