AIRLAID COMPOSITE SHEET MATERIAL
    1.
    发明申请

    公开(公告)号:WO2018197937A1

    公开(公告)日:2018-11-01

    申请号:PCT/IB2017/056511

    申请日:2017-10-19

    Abstract: Provided is a composite sheet that is particularly useful as an AQDL component in absorbent articles. The composite sheet includes a fluid acquisition component and an airlaid component. The airlaid component may include one or more airlaid layers that are successively formed overlying each other. Each of the airlaid layers are adjacent to, and in direct contact with, immediately adjacent layers of the airlaid component so that adjacent layers are in fluid communication with respect to each other. The fluid acquisition component includes a nonwoven fabric comprising a carded nonwoven fabric comprised of a plurality of staple fibers that are air through bonded to each other to form a coherent nonwoven fabric. The airlaid layer(s) include a blend of cellulose and non-cellulose staple fibers. The staple fibers may be bicomponent fibers having a polyethyelene sheath and a polypropylene or polyethylene terephthalate core, and mixtures of such fibers.

    COMPOSITE SHEET MATERIAL, SYSTEM, AND METHOD OF PREPARING SAME

    公开(公告)号:WO2019222097A1

    公开(公告)日:2019-11-21

    申请号:PCT/US2019/032011

    申请日:2019-05-13

    Abstract: A system and associated method for preparing a composite sheet material is provided. The system includes a nonwoven fabric source; a collection surface onto which a nonwoven fabric is deposited; a carding device disposed downstream of the nonwoven fabric source overlying the collection surface, the carding device including a main cylinder, an air source configured to provide a stream of air; an air manifold having an air inlet in communication with the air source, an air outlet, a fiber inlet, an interior channel, and a fiber outlet. The air outlet is positioned to direct an air stream against a surface the cylinder to dislodge fibers from the surface of the cylinder. The dislodged fibers enter the fiber inlet and flow to the fiber outlet at which point the fibers are deposited onto a surface of the nonwoven fabric. The fabrics are then bonded to form a coherent sheet material.

    SYSTEM AND PROCESS FOR PREPARING POLYLACTIC ACID NONWOVEN FABRICS
    3.
    发明申请
    SYSTEM AND PROCESS FOR PREPARING POLYLACTIC ACID NONWOVEN FABRICS 审中-公开
    制备聚乳酸无纺织物的系统和方法

    公开(公告)号:WO2018025209A1

    公开(公告)日:2018-02-08

    申请号:PCT/IB2017/054741

    申请日:2017-08-02

    Abstract: A system for preparing a polylactic acid (PLA) spunbond nonwoven fabric is provided. In particular, the system includes a first PLA source configured to provide a stream of molten or semi-molten PLA resin; a spin beam in fluid communication with the first PLA source, the spin beam configured to extrude and draw a plurality of PLA continuous filaments; a collection surface disposed below an outlet of the spin beam onto which the PLA continuous filaments are deposited to form the PLA spunbond nonwoven fabric; a first ionization source positioned and arranged to expose the PLA continuous filaments to ions; and a calender positioned downstream of the first ionization source.

    Abstract translation: 提供了用于制备聚乳酸(PLA)纺粘非织造织物的系统。 特别地,该系统包括第一PLA源,其被配置为提供熔融或半熔融PLA树脂流; 与所述第一PLA源流体连通的纺丝束,所述纺丝束构造成挤出并拉伸多根PLA连续长丝; 布置在纺丝束出口下方的收集表面,PLA连续长丝沉积在该出口上以形成PLA纺粘非织造织物; 第一电离源,其被定位和布置成将所述PLA连续细丝暴露于离子; 和位于第一电离源下游的压光机。

    SYSTEM AND PROCESS FOR PREPARING A FIBROUS NONWOVEN COMPOSITE FABRIC

    公开(公告)号:WO2022240763A1

    公开(公告)日:2022-11-17

    申请号:PCT/US2022/028362

    申请日:2022-05-09

    Abstract: A system having a first polymer source and a spin beam in fluid communication with the first polymer source is provided. The spin beam includes a spinneret assembly having filament nozzles configured and arranged to extrude a plurality of filaments of a first polymer. A gas distribution plate is disposed downstream of the spinneret assembly, and includes a plurality of gas distribution slots that are configured and arranged to receive two or more corresponding filament nozzles of the spinneret assembly therein. A stream of gas is introduced into the plurality of slots to draw and attenuate the filaments extruded by the plurality of filament nozzles. The drawn and attenuated filaments are collected on a collection surface disposed downstream of the gas distribution plate to form a nonwoven fabric. A solid additive, such as pulp fibers may be blended with the filaments prior to collecting the filaments on the collection surface.

    NONWOVEN FABRIC HAVING A SINGLE LAYER WITH A PLURALITY OF DIFFERENT FIBER TYPES, AND AN APPARATUS, SYSTEM, AND METHOD FOR PRODUCING SAME

    公开(公告)号:WO2022150771A1

    公开(公告)日:2022-07-14

    申请号:PCT/US2022/011999

    申请日:2022-01-11

    Abstract: One or more aspects of the disclosure provides a nonwoven fabric comprising a single layer in which the single fabric layer comprises a plurality of different fibers in which each fiber type has desired functionality. In one aspect, a system for preparing a nonwoven fabric having a single fabric layer in which the single fabric layer comprises a plurality of different fiber types, is provided. The system includes a spin beam having a zoned distribution plate disposed upstream of a spinneret, the zoned distribution plate includes a plurality of distribution apertures arranged in zones, wherein each zone is configured and arranged to extrude a plurality of polymer streams that are of a different polymer type than polymer streams extruded by an adjacent zone to the spinneret to form a single layer having two or more types of fibers that are of a different type from each other.

    MELTBLOWN NONWOVEN WEB COMPRISING RECLAIMED POLYPROPYLENE COMPONENT AND RECLAIMED SUSTAINABLE POLYMER COMPONENT AND METHOD OF MAKING SAME FIELD
    8.
    发明申请
    MELTBLOWN NONWOVEN WEB COMPRISING RECLAIMED POLYPROPYLENE COMPONENT AND RECLAIMED SUSTAINABLE POLYMER COMPONENT AND METHOD OF MAKING SAME FIELD 审中-公开
    包含已回收的聚丙烯组分和可回收的可持续聚合物组分的熔融非织造网及其制备方法

    公开(公告)号:WO2015112844A1

    公开(公告)日:2015-07-30

    申请号:PCT/US2015/012658

    申请日:2015-01-23

    Abstract: Process of preparing meltblown fibers that are reclaimed from a starting material of a polypropylene component and a sustainable polymer component is provided. In one aspect, the method includes blending starting fibers of a polypropylene component and a sustainable polymer component under heat to form a molten stream, and then vis-breaking the components to obtain a polymeric blend that is suitable for use in meltblowing applications. The molten stream of the vis-broken polymer components are extruded through a meltblowing die to form a stream of meltblown fibers that is then collected on a collection surface to form a coherent meltblown web. The starting material may be bicomponent filaments having a sheath-core configuration in which the polypropylene component is oriented in the sheath and the sustainable polymer component is oriented in the core of the filaments. The invention is also directed to meltblown fibers and webs prepared from the process.

    Abstract translation: 提供了制备从聚丙烯组分的原材料和可持续的聚合物组分回收的熔喷纤维的方法。 在一个方面,该方法包括在加热下共混聚丙烯组分的起始纤维和可持续聚合物组分以形成熔融流,然后将组分破坏以获得适合用于熔喷应用的聚合物共混物。 熔融流体的可折射的聚合物组分通过熔喷模头挤出以形成熔喷纤维流,然后将其收集在收集表面上以形成相干的熔喷网。 起始材料可以是具有皮芯型构型的双组分长丝,其中聚丙烯组分定向在护套中,并且可持续聚合物组分定向在长丝的芯中。 本发明还涉及由该方法制备的熔喷纤维和网。

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