| 摘要 |
1535607 Disposable diapers COLGATEPALMOLIVE CO 15 July 1976 [31 July 1975] 29544/76 Heading B5N A disposable diaper comprises, in order, a water-pervious layer 12, a spongy resilient and compressible hydrophobic fibrous layer 14, an absorbent core 16 and a water-impervious layer 24; the hydrophobic fibrous layer having a density of from 0À01 g./c.c. to 0À03 g./c.c., when not compressed, and comprising non- woven, hydrophobic fibres having an average length of from about “ inch to 3¢ inches, the fibres being bonded together at at least a sufficient porportion of their points of contact for the layer to be self-sustaining, the hydrophobic layer in the uncompressed condition being pervious to fluid but when compressed being substantially impervious to fluids. The water-pervious layer 12 has perforations 26 and is formed of non-absorbent, soft, non- woven tissue. The hydrophobic layer 14 is formed of polyester fibres derived from ethylene glycol and dimethyl terephthalate which are bonded together by adhesive or by heating. When uncompressed the layer 14 is 3/16 to ¢ inch thick. The absorbent core 16 comprises an absorbent fluff material 22, e.g. wood fluff, sandwiched between absorbent sheets, or may comprise a plurality of plies of creped cellulose or a plurality of plies of paper having a fluff coating thereon. The water-impervious layer 24 comprises a resinous film-forming polymeric material, e.g. a polyethylene. polypropylene or polyvinyl chloride. |
