Liquid saturation process
    3.
    发明授权
    Liquid saturation process 失效
    液体饱和过程

    公开(公告)号:US5486381A

    公开(公告)日:1996-01-23

    申请号:US231608

    申请日:1994-04-22

    CPC分类号: D06B5/08 D06B1/06 D06M23/00

    摘要: Disclosed is a continuous process of non-compressively and uniformly applying a liquid saturant throughout a permeable sheet. The process includes the steps of: 1) providing a continuously advancing permeable sheet having a first surface and a second surface, 2) depositing a substantially laminar flowing curtain of a liquid saturant generally across and onto the first surface of the continuously advancing permeable sheet, 3) applying a vacuum to the second surface of the continuously advancing permeable sheet, and 4) drawing a substantial portion of the liquid saturant through the permeable sheet to generate a substantially uniform distribution of liquid saturant throughout the permeable sheet. The process may also include the step of drying the liquid saturated permeable sheet. The dry bulk of the liquid saturant treated permeable sheet may be within about 15 percent of the dry bulk of an identical untreated permeable sheet. Also disclosed is a non-compressively and uniformly liquid saturant treated permeable sheet and an apparatus for non-compressively and uniformly applying a liquid saturant throughout a permeable sheet.

    摘要翻译: 公开了在整个可渗透片材中非压缩均匀地施加液体饱和剂的连续方法。 该方法包括以下步骤:1)提供具有第一表面和第二表面的连续前进的可渗透片材,2)将大体上层流的液体保护层的帘幕大致横跨并延伸到连续前进的可渗透片材的第一表面上, 3)向连续前进的可渗透片材的第二表面施加真空,4)通过可渗透片材抽出大部分的液体饱和剂,以在整个可渗透片材上产生基本均匀的液体饱和剂分布。 该方法还可以包括干燥液体饱和可渗透片的步骤。 液体饱和剂处理的可渗透片材的干燥体积可以在相同的未处理的可渗透片材的干体积的约15%内。 还公开了非压缩且均匀的液体饱和处理的可渗透片材和用于在整个可渗透片材中非压缩均匀地施加液体饱和剂的装置。

    Liquid saturation process, apparatus and article thereof
    4.
    发明授权
    Liquid saturation process, apparatus and article thereof 失效
    液体饱和过程,设备及其制品

    公开(公告)号:US5578124A

    公开(公告)日:1996-11-26

    申请号:US470314

    申请日:1995-06-06

    CPC分类号: D06B5/08 D06B1/06 D06M23/00

    摘要: Disclosed is a continuous process of non-compressively and uniformly applying a liquid saturant throughout a permeable sheet. The process includes the steps of: 1) providing a continuously advancing permeable sheet having a first surface and a second surface, 2) depositing a substantially laminar flowing curtain of a liquid saturant generally across and onto the first surface of the continuously advancing permeable sheet, 3) applying a vacuum to the second surface of the continuously advancing permeable sheet, and 4) drawing a substantial portion of the liquid saturant through the permeable sheet to generate a substantially uniform distribution of liquid saturant throughout the permeable sheet. The process may also include the step of drying the liquid saturated permeable sheet. The dry bulk of the liquid saturant treated permeable sheet may be within about 15 percent of the dry bulk of an identical untreated permeable sheet. Also disclosed is a non-compressively and uniformly liquid saturant treated permeable sheet and an apparatus for non-compressively and uniformly applying a liquid saturant throughout a permeable sheet.

    摘要翻译: 公开了在整个可渗透片材中非压缩均匀地施加液体饱和剂的连续方法。 该方法包括以下步骤:1)提供具有第一表面和第二表面的连续前进的可渗透片材,2)将大体上层流的液体保护层的帘幕大致横跨并延伸到连续前进的可渗透片材的第一表面上, 3)向连续前进的可渗透片材的第二表面施加真空,4)通过可渗透片材抽出大部分的液体饱和剂,以在整个可渗透片材上产生基本均匀的液体饱和剂分布。 该方法还可以包括干燥液体饱和可渗透片的步骤。 液体饱和剂处理的可渗透片材的干燥体积可以在相同的未处理的可渗透片材的干体积的约15%内。 还公开了非压缩且均匀的液体饱和处理的可渗透片材和用于在整个可渗透片材中非压缩均匀地施加液体饱和剂的装置。

    Process for making a hydraulically needled superabsorbent composite
material and article thereof
    6.
    发明授权
    Process for making a hydraulically needled superabsorbent composite material and article thereof 失效
    制备液压针刺超吸收复合材料及其制品的方法

    公开(公告)号:US5328759A

    公开(公告)日:1994-07-12

    申请号:US786437

    申请日:1991-11-01

    摘要: Disclosed is a process of making an superabsorbent composite material which contains a hydraulically-needled fibrous web and superabsorbent materials. The method includes the steps of providing a nonwoven fibrous web; hydraulically needling the nonwoven web to enhance its liquid distribution properties; and introducing dry superabsorbent materials into intimate bonding contact with at least one surface of the hydraulically needled fibrous web. Also disclosed is the superabsorbent nonwoven composite material made by the described process. The hydraulically needled fibrous web component of the material may contain pulp fibers, synthetic fibers, natural fibers, bicomponent fibers, continuous filaments or mixtures thereof. The superabsorbent composite material has a saturation capacity greater than about 500 percent and a wicking rate greater than about 12 centimeters per 15 minutes. The superabsorbent composite material may be used as a liquid management material in an absorbent product or absorbent structure.

    摘要翻译: 公开了一种制备含有水压针刺纤维网和超吸收材料的超吸收复合材料的方法。 该方法包括提供非织造纤维网的步骤; 液压针刺非织造纤维网以增强其液体分布性能; 并且将干燥的超吸收材料引入与液压针刺纤维网的至少一个表面紧密接合。 还公开了通过所述方法制备的超吸收性非织造复合材料。 材料的液压针刺纤维网部件​​可以含有纸浆纤维,合成纤维,天然纤维,双组分纤维,连续长丝或其混合物。 超吸收复合材料的饱和容量大于约500%,芯吸速率大于每15分钟约12厘米。 超吸收性复合材料可以用作吸收产品或吸收结构中的液体管理材料。

    Hydraulically entangled nonwoven elastomeric web and method of forming
the same
    7.
    发明授权
    Hydraulically entangled nonwoven elastomeric web and method of forming the same 失效
    液压缠结非织造弹性体网及其形成方法

    公开(公告)号:US4939016A

    公开(公告)日:1990-07-03

    申请号:US170209

    申请日:1988-03-18

    IPC分类号: D04H1/46 D04H1/56

    摘要: A composite nonwoven elastomeric web material, and method of forming such material, as well as a nonwoven elastomeric web material and method of forming such material, are disclosed. The composite web material is provided by hydraulically entangling a laminate of at least (1) a layer of meltblown fibers; and (2) at least one further layer, preferably of at least one of pulp fibers, staple fibers, meltblown fibers, and continuous filaments, with or without particulate material, with at least one of the layer of meltblown fibers and the further layer being elastic so as to form an elastic web material after hydraulic entanglement. The nonwoven elastomeric web material is provided by hydraulically entangling a layer of meltblown elastomeric fibers. The material formed can be cloth-like with smooth surfaces, and with isotropic elasticity and strength. Different texture properties, including a corrugated stretchable fabric, can be provided by pre-stretching and then hydraulically entangling while stretched.

    摘要翻译: 公开了一种复合非织造弹性体网材料,以及形成这种材料的方法,以及非织造弹性体网材料和形成这种材料的方法。 复合网材料通过液压缠绕至少(1)一层熔喷纤维的层压材料来提供; 和(2)至少一个另外的层,优选至少一个纸浆纤维,短纤维,熔喷纤维和连续长丝,具有或不具有颗粒材料,至少一个熔喷纤维层和另一层是 以便在液压缠结后形成弹性纤维网材料。 非织造弹性体网材料通过液压缠结一层熔喷弹性纤维来提供。 形成的材料可以是具有光滑表面的布状,并具有各向同性的弹性和强度。 不同的纹理特性,包括波纹可拉伸织物,可以通过预拉伸然后在拉伸时进行液压缠结来提供。

    Use-dependent indicator system for absorbent articles
    10.
    发明授权
    Use-dependent indicator system for absorbent articles 有权
    用于吸收制品的使用依赖性指示剂系统

    公开(公告)号:US06794318B2

    公开(公告)日:2004-09-21

    申请号:US09746719

    申请日:2000-12-22

    IPC分类号: B32B2704

    摘要: A use-dependent indicator system for detecting the exhaustion of an active chemical within an absorbent article is provided. The indicator system includes at least one dye component and a polymer mixture. The dye component(s) can be non-reactive and/or reactive dyes. The polymer mixture can contain a polymer, such as a latex adhesive, to facilitate control over the dissolution rate of the dye component(s). By controlling the dissolution rate of the dye component(s), an indicator system of the present invention can impart a change in color to signal the exhaustion of an active chemical incorporated within the absorbent article, such as an anti-microbial agent.

    摘要翻译: 提供了一种用于检测吸收制品内的活性化学物质耗尽的依赖用途的指示剂系统。 指示剂系统包括至少一种染料组分和聚合物混合物。 染料组分可以是非反应性和/或活性染料。 聚合物混合物可以含有聚合物,例如胶乳粘合剂,以便于控制染料组分的溶解速率。 通过控制染料成分的溶解速度,本发明的指示剂体系可赋予颜色变化,以表示吸收物品(如抗微生物剂)中引入的活性化学物质的排出。