AIR-PERMEABLE AND LIQUID-IMPERMEABLE BACKSHEET FOR USE IN BODY FLUID ABSORBENT ARTICLES, AND ITS MANUFACTURING METHOD

摘要

An article for absorbing body fluid comprised of a layer of absorbent material and a liquid-impermeable backsheet. The backsheet is composed of a stretched polyolefin plastic containing 30 to 80% by weight of embedded inorganic filler particles based on the weight of the backsheet. The backsheet has at least one roughened portion that includes a large number of air-permeable fine pores and a large number of fine projections formed by rising up of the filler particles. The remainder of the backsheet is composed of a relatively smooth, thermo-embossed, surface which is substantially free of the fine projections and has a higher transparency than the at least one roughened portion.