24-03-2022 дата публикации
Номер: US20220090328A1
Принадлежит:
A multi-layered web is disclosed that is resilient and/or elastic in the Z-direction. Thus, when the web is compressed, the web assumes a compacted state and then expands to an expanded state when the compressive forces are removed. In one embodiment, the multi-layered web includes a middle layer made from a resilient blend of fibers positioned inbetween two outer layers. The middle layer, for instance, can contain elastomeric fibers, three-dimensional fibers, and/or debonded fibers. 1. An absorbent , multi-layered web comprising:a first layer comprising pulp fibers;a second layer comprising pulp fibers; anda middle layer positioned in between the first layer and the second layer, the middle layer comprising a resilient fibrous layer, the resilient fibrous layer comprising elastomeric fibers, three-dimensional fibers, debonded cellulosic fibers, or mixtures thereof.2. An absorbent claim 1 , multi-layered web as defined in claim 1 , wherein claim 1 , when the web is subjected to a compressive force of 13 kPa and the compressive force is removed claim 1 , the web increases in thickness in an amount of at least about 5% claim 1 , such as in an amount of at least about 8% claim 1 , such as in an amount of at least about 10%.3. An absorbent claim 1 , multi-layered web as defined in claim 1 , wherein claim 1 , when the web is subjected to a compressive force of 13 kPa and the compressive force is removed claim 1 , the web increases in bulk in an amount of at least about 5% claim 1 , such as in an amount of at least about 8% claim 1 , such as in an amount of at least about 10%.4. An absorbent claim 1 , multi-layered web as defined in any of the preceding claims claim 1 , wherein the middle layer contains the elastomeric fibers claim 1 , the elastomeric fibers being formed from an elastomeric polymer claim 1 , the elastomeric polymer comprising a styrenic block copolymer claim 1 , a thermoplastic polyurethane elastomer claim 1 , a polyamide elastomer claim 1 , a copolyester ...
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