Highly permeable and water resistant barrier sheet, and absorber product using the barrier sheet
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United States of America Patent
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N/A
Issued Date -
May 27, 2004
app pub date -
Oct 30, 2003
filing date -
May 2, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A highly permeable and water resistant barrier sheet, comprising a porous buffer sheet and a water resistant nonwoven cloth of 100 mmH.sub.2O or higher in water resistance connected integrally with each other and combined with a permeable sheet-like absorber to form an absorbing core so as to make an absorber product highly permeable, wherein the porous buffer sheet is a perforated film formed desirably in an irregular structure having funnel-shaped perforated structures with top and bottom parts different in diameter from each other and, when the diameter thereof on the shorter diameter side is 1 mm or shorter when a hole is approximated in a complete round shape and the number of holes is 20/cm.sup.2 or more.
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