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    • 5. 发明授权
    • Matched permeability liner/absorbent structure system for absorbent
articles and the like
    • US06060638A
    • 2000-05-09
    • US740767
    • 1996-11-01
    • Susan Carol PaulPhilip Anthony SasseDavid George CrowtherEric Mitchell Johns
    • Susan Carol PaulPhilip Anthony SasseDavid George CrowtherEric Mitchell Johns
    • A61F13/15
    • A61F13/511A61F13/15203A61F13/534A61F13/5116A61F2013/15487A61F2013/1556A61F2013/530897A61F2013/53721
    • The present invention is directed to a matched permeability liner/absorbent structure system, suitable for use in absorbent articles, in which the permeability of the bodyside liner is correlated with the permeability of the subjacent layer of the absorbent structure, such as a surge layer. The inventors have observed that by appropriately matching the permeability of the liner material to the permeability of the subjacent layer, liquid intake performance of the liner and subjacent layer materials can exceed liquid intake performance of the subjacent layer material alone. Thus, in accordance with an embodiment of the present invention, the permeability of the bodyside liner is set within a specified range of that of the subjacent layer such that the liner/subjacent layer liquid intake performance is improved. In accordance with another embodiment of the present invention, the permeability of the bodyside liner is matched to or correlated with the permeability of the subjacent layer such that the liner/subjacent layer liquid intake performance is improved at least about 50 percent over the liquid intake performance of the subjacent layer alone. In accordance with yet another embodiment of the present invention, the permeability of the liner material is matched to or correlated with the permeability of the subjacent layer such that liquid intake performance of the liner/subjacent layer combination is improved at least about 65 percent over the liquid intake performance of the subjacent layer alone. As disclosed herein, by properly selecting the permeability of the liner material, as compared with the permeability of the subjacent layer material, the liquid intake rate of the liner material not only does not limit or inhibit liquid intake into the subjacent layer and underlying components of the absorbent structure, but provides an unexpected increase in liquid intake performance over that of the subjacent layer alone. The bodyside liner and subjacent layer can suitably be formed of fibrous nonwoven webs.
    • 9. 发明授权
    • Method of making a seamless tubular band
    • 制造无缝管状带的方法
    • US6054002A
    • 2000-04-25
    • US671391
    • 1996-06-27
    • Henry Louis Griesbach, IIIPhilip Anthony Sasse
    • Henry Louis Griesbach, IIIPhilip Anthony Sasse
    • D01F8/06D01F8/10D01F8/16D01D5/22
    • D01F8/10D01F8/06D01F8/16
    • Side-by-side conjugate filaments made from thermoplastic elastomers and spunbond-type polyolefins exhibit an extremely high propensity to self-crimp. At appropriate polymer ratios and processing conditions (with mechanical or aerodynamical drawing) the crimp develops spontaneously after relaxation of the attenuation force. The amount of crimp and the degree of elastic properties depend on the elastomer content and the processing conditions. The resulting crimp is typically in the range of 25-200 crimps per inch. This combination of exceptionally high crimp and an elastomer component imparts stretch and recovery properties. The filaments can be wrapped around a cylindrical supporting structure to create a continuous, seamless elastic band, useful for body-fit articles.
    • 由热塑性弹性体和纺粘型聚烯烃制成的并列共轭丝具有极高的自卷曲倾向。 在合适的聚合物比例和加工条件(机械或空气动力学拉伸)下,卷曲在松弛衰减力后自发发展。 卷曲量和弹性性质取决于弹性体含量和加工条件。 所得的卷曲通常在每英寸25-200个卷边的范围内。 这种非常高的卷曲和弹性体组分的组合赋予拉伸和恢复性能。 长丝可以缠绕在圆柱形支撑结构上以产生连续的,无缝的弹性带,用于身体贴合制品。