ABSORBENT STRUCTURE COMPRISING CO-FORMED LAYER

    公开(公告)号:WO2022093886A1

    公开(公告)日:2022-05-05

    申请号:PCT/US2021/056739

    申请日:2021-10-27

    Abstract: An absorbent structure is disclosed, which may be or form part of an absorbent core of an absorbent article. The structure has a caliper, a fluid-receiving side and a non-receiving side. The non-receiving side occupies a first x-y plane; the receiving side occupies a second x-y plane. The structure has a first zone constituting a first portion of the caliper proximate the non-receiving side, and a second zone constituting a second portion of the caliper proximate the receiving side. Each of the zones includes a co-formed blend of constituents. The blend may include AGM particles, spun filaments and/or cellulose fibers. In examples including AGM particles, particles in the first zone may have an average particle size smaller than that of particles in the second zone. In examples including filaments, filaments in the first zone may have an average filament size smaller than that of the filaments in the second zone.

    ENHANCED CO-FORMED/MELTSPUN FIBROUS WEB STRUCTURE
    5.
    发明申请
    ENHANCED CO-FORMED/MELTSPUN FIBROUS WEB STRUCTURE 审中-公开
    增强的共成型/ MELTSPUN纤维网状结构

    公开(公告)号:WO2018005461A1

    公开(公告)日:2018-01-04

    申请号:PCT/US2017/039455

    申请日:2017-06-27

    Abstract: An enhanced, co-formed fibrous web structure is disclosed. The web structure may have a co-formed core layer sandwiched between two scrim layers. The core layer may be formed of a blend of cellulose pulp fibers and melt spun filaments. The scrim layers may be formed of melt spun filaments, and the filaments forming one or both scrim layers may have a number average diameter of 4.5 μm or less. Filaments of one or both of the scrim layers, and optionally the core layer, may also be meltblown filaments. Alternatively, the filaments forming the scrim layers may constitute from 1 to 13 percent of the weight of the structure. Alternatively, the scrim layers may have a combined basis weight of from 0.1 gsm to less than 3.0 gsm. A method for forming the structure, including direct formation of layers, is also disclosed.

    Abstract translation: 公开了增强的共成形的纤维网结构。 网状结构可以具有夹在两个稀松布层之间的共同形成的芯层。 芯层可以由纤维素浆粕纤维和熔纺长丝的混合物形成。 稀松布层可以由熔纺长丝形成,并且形成一个或两个稀松布层的长丝可以具有4.5μm或更小的数均直径。 稀松布层和任选的芯层中的一者或两者的细丝也可以是熔喷细丝。 或者,形成稀松布层的长丝可占结构重量的1%至13%。 或者,稀松布层可具有0.1gsm至小于3.0gsm的组合基重。 还公开了形成该结构的方法,包括直接形成层。

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