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Lofty nonwoven fabrics

A technology of non-woven fabrics, non-woven layers, applied in the direction of non-woven fabrics, textiles and paper, chemical instruments and methods, capable of solving material compression, undesired elongation and/or necking in the machine direction, reduction Issues such as small overall bulk

Active Publication Date: 2020-09-18
BERRY GLOBAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While methods exist for producing high-loft and low-density fabrics, fabrics typically undergo a number of processes during conversion, which compress and / or deform the material
Compression of the fabric may reduce the overall bulk that occurs while the fabric is conveyed in the machine direction during the various converting processes, possibly causing undesired elongation and / or necking in the machine direction (e.g., reduction in width in the transverse direction), such that the ability to negatively affect the conversion process due to the overall deformation of the fabric

Method used

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  • Lofty nonwoven fabrics
  • Lofty nonwoven fabrics
  • Lofty nonwoven fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] The present disclosure is then further illustrated by the following examples, which should in no way be construed as limiting. That is, specific features described in the following embodiments are only illustrative and not restrictive.

[0068] Ten (10) individual nonwovens were tested for machine direction elongation and cross direction width loss for comparison. The first nonwoven tested was a 17 gsm SMMMS nonwoven formed from polypropylene monocomponent fibers and having a bonded area of ​​18.8%. The nonwoven is in Figure 7 A to 7B, Figure 8 and is identified as nonwoven #1 in FIG. 9 . Such nonwovens may be suitable as scrims according to certain embodiments of the present invention. The second nonwoven tested was a 30 gsm DHL nonwoven layer formed from two bundles of crimped bicomponent spunbond fibers having a circular cross-section. The DHL nonwoven layer has a bonded area of ​​12%. The nonwoven is in Figure 7 A to 7B, Figure 8 and is identified as non...

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Abstract

Nonwoven fabrics are provided that include (i) at least one disposable-high-loft nonwoven layer having a plurality of crimped multi-component fibers and (ii) a scrim. A first side of the scrim may bebonded directly or indirectly to a first disposable-high-loft nonwoven layer and optionally a second side of the scrim may be bonded directly or indirectly to a second disposable-high-loft nonwoven layer. The first disposable-high-loft nonwoven layer has a first density and the scrim has a scrim density, in which the scrim density is larger than the first density.

Description

[0001] priority claim [0002] This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Application No. 62 / 626,242, filed February 5, 2018, which is expressly incorporated herein by reference in its entirety. technical field [0003] Embodiments of the disclosed invention generally relate to having improved deformation (e.g., elongation in the machine direction and / or width reduction in the cross direction) due to external loads or tension applied in the machine direction on the nonwoven fabric. High resistance disposable high loft nonwoven fabric. Embodiments of the disclosed invention also generally relate to methods of making such disposable high loft nonwoven fabrics and the use of such disposable high loft nonwoven fabrics as components in hygiene related articles such as diapers. Background technique [0004] In nonwoven fabrics, the fibers forming the nonwoven fabric are generally oriented in the x-y plane of the web. Thus, the resulting nonwoven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B5/02B32B5/08B32B7/022D04H1/541D04H3/147
CPCB32B5/26B32B5/022B32B5/028B32B5/08B32B7/022B32B7/05D04H1/5412D04H1/5414D04H3/147D04H3/16B32B2262/02B32B2262/12B32B2307/50B32B2307/718D04H1/5416
Inventor 拉尔夫·A·穆迪三世
Owner BERRY GLOBAL INC