CLEANING SHEET AND MANUFACTURING METHOD THEREFOR
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United States of America Patent
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Issued Date -
Nov 19, 2015
app pub date -
Mar 26, 2013
filing date -
May 28, 2012
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Abstract
A cleaning sheet (1) includes a hydrophilic fiber aggregate (11) and a hydrophobic fiber aggregate (12) disposed on both sides of the hydrophilic fiber aggregate (11). The hydrophobic fiber aggregate (12) has its constituent fibers (14) entangled with one another, entering the hydrophilic fiber aggregate (11), and entangled with fibers (13) of the hydrophilic fiber aggregate (11). The cleaning sheet (1) is three-dimensionally textured with a plurality of protrusions (2) and a plurality of depressions (3) on both sides thereof. The protrusions (2) on one side correspond to the depressions (3) on the other side, and the depressions (3) on one side correspond to the protrusions (2) on the other side. The cleaning sheet (1) has linear bonds (15) where the hydrophilic fiber aggregate (11) and the hydrophobic fiber aggregate (12) are bonded to each other.
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