Tampon containing blended superabsorbent material
    14.
    发明授权
    Tampon containing blended superabsorbent material 失效
    棉塞含混合超吸收材料

    公开(公告)号:US4274412A

    公开(公告)日:1981-06-23

    申请号:US87221

    申请日:1979-10-22

    Inventor: Jared A. Austin

    CPC classification number: A61L15/60 A61F13/2051 A61L15/28 Y10S604/904

    Abstract: A tampon is provided having an absorbent core made of a plurality of discrete plies of a blend of cellulosic material and superabsorbent fibers and having an absorbent layer overwrap and a fluid permeable cover surrounding the absorbent material. The absorbent layer is located on both the top and bottom surfaces of the absorbent core and contains staple textile fibers.

    Abstract translation: 提供一种棉塞,其具有由纤维素材料和超吸收性纤维的混合物的多个离散层组成的吸收芯,并且具有吸收层外包层和围绕吸收材料的流体可渗透覆盖层。 吸收层位于吸收芯的顶表面和底表面上,并且包含短纤维纤维。

    Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers
    16.
    发明授权
    Nonwoven fabrics and fabric laminates from multiconstituent polyolefin fibers 失效
    来自多组分聚烯烃纤维的无纺织物和织物层压材料

    公开(公告)号:US06448194B2

    公开(公告)日:2002-09-10

    申请号:US09773845

    申请日:2001-01-31

    Abstract: Nonwoven fabrics and fabric laminates are formed from continuous filaments or staple fibers of a select blend of specific grades of polyethylene and polypropylene which give improved fabric performance not heretofore recognized or described, such as high abrasion resistance, good tensile properties, excellent softness and the like. Furthermore, these blends have excellent melt spinning and processing properties which permit efficiently producing nonwoven fabrics at high productivity levels. The polymers are present as a lower-melting dominant continuous phase and at least one higher-melting noncontinuous phase dispersed therein The lower-melting continuous phase forms at least 70 percent by weight of the fiber and comprises a linear low density polyethylene polymer of a melt index of greater than 10 and a density of less than 0.945 g/cc. At least one higher-melting noncontinuous phase comprises a polypropylene polymer with melt flow rate of greater than 20 g/10 min.

    Abstract translation: 无纺织物和织物层压体由特定等级的聚乙烯和聚丙烯的选择性共混物的连续长丝或短纤维形成,其提供迄今未被认识到或描述的改善的织物性能,例如高耐磨性,良好的拉伸性能,优异的柔软性等 。 此外,这些共混物具有优异的熔融纺丝和加工性质,其允许以高生产率水平有效地生产非织造织物。 聚合物作为较低熔点的主要连续相存在且至少一个较高熔点的非连续相分散在其中低熔点连续相形成至少70重量%的纤维,并且包含熔体的线性低密度聚乙烯聚合物 指数大于10,密度小于0.945g / cc。 至少一个较高熔点的非连续相包含熔体流动速率大于20g / 10min的聚丙烯聚合物。

    Elastomeric meltblown webs
    19.
    发明授权
    Elastomeric meltblown webs 失效
    弹性熔喷网

    公开(公告)号:US5324580A

    公开(公告)日:1994-06-28

    申请号:US954277

    申请日:1992-09-30

    Abstract: The invention is directed to elastomeric meltblown webs having desirable strength and stretch/recovery properties which can be produced at relatively high throughputs and/or relatively low die pressures. The meltblown webs of the invention comprise a blend of (i) a fully hydrogenated diblock or triblock thermoplastic elastomer copolymer or mixtures thereof based on polystyrene and poly(ethylene-butylene) blocks; and (ii) from about 5% by weight up to about 50% by weight of a copolymer of ethylene and acrylic acid or ethylene and a lower alkyl ester of acrylic acid in which the ethylene content ranges from about 5% by weight up to about 50% by weight.

    Abstract translation: 本发明涉及具有期望的强度和拉伸/恢复性能的弹性体熔喷网,其可以在相对高的通量和/或相对较低的模具压力下制造。 本发明的熔喷纤维网包含(i)基于聚苯乙烯和聚(乙烯 - 丁烯)嵌段的完全氢化的二嵌段或三嵌段热塑性弹性体共聚物或其混合物的共混物; 和(ii)约5重量%至约50重量%的乙烯与丙烯酸或乙烯的共聚物和丙烯酸的低级烷基酯,其中乙烯含量范围为约5重量%至约 50重量%。

    Fiberization of compressed fibrous sheets via Rando-Webber
    20.
    发明授权
    Fiberization of compressed fibrous sheets via Rando-Webber 失效
    通过Rando-Webber纤维化纤维片

    公开(公告)号:US4315347A

    公开(公告)日:1982-02-16

    申请号:US97242

    申请日:1979-11-26

    CPC classification number: D04H1/72

    Abstract: A method and apparatus for forming non-woven webs by separating fibers from a compacted sheet or sheets of the fibers utilizing a lickerin. The method and apparatus include provision for attaining substantially individual fibers from a compressed sheet of short papermaking fibers such as wood pulp or cotton linters, and also fibers from a compacted sheet of longer fibers such as rayon, and blending the long and short fibers together into a non-woven web in the continuous operation of the lickerin and associated equipment. For the purpose of obtaining the short (1/4 inch and less) papermaking cellulosic fibers of wood pulp or the like the nose of the feed bar for the compacted short fibers is spaced a considerable distance from the working circumference of the lickerin such that the compacted sheet tip vibrates and the feed of the sheet of short fibers is substantially radially of the lickerin. Additionally, when forming a composite of long and short fibers the short fibers are freed by the lickerin in the course of lickerin rotation in advance of the freeing of the longer fibers.

    Abstract translation: 一种用于通过使用拉链蛋白从压实的片材或片材中分离纤维来形成无纺织物的方法和设备。 所述方法和装置包括从压缩的造纸纤维例如木浆或棉短绒的压片中获得基本单独的纤维,以及来自诸如人造纤维的较长纤维的压实片的纤维,并将长纤维和短纤维混合在一起形成 在连续操作的拉链和相关设备中的无纺布网。 为了获得木浆等的短(1/4英寸及以下)造纸纤维素纤维的目的,用于压实的短纤维的进料棒的鼻部与拉丁蛋白的工作周长间隔相当的距离,使得 压实的片材尖端振动并且短纤维片材的进料基本上是拉丁蛋白的径向。 此外,当形成长纤维和短纤维的复合材料时,在释放更长的纤维之前,短纤维在拉丁弹簧旋转的过程中被刺激素释放。

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