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Absorbent articles comprising extensible auxetic structures which increase in caliper

An absorbent article, configuration technology, applied in the direction of absorbent pads, layered products, transportation and packaging, etc., can solve problems such as width reduction

Inactive Publication Date: 2016-04-06
PROCTER & GAMBLE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A disadvantage often associated with extensible and elastic materials such as (elastic) films or nonwoven webs is that their width decreases when they are stretched along their lengthwise dimension

Method used

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  • Absorbent articles comprising extensible auxetic structures which increase in caliper
  • Absorbent articles comprising extensible auxetic structures which increase in caliper
  • Absorbent articles comprising extensible auxetic structures which increase in caliper

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0288] For Example 1: Place the first, second, third and fourth tethers such that the spacing between adjacent tethers is 10mm when the tethers are laid flat on the first layer.

example 2

[0289] For Examples 2, 4 and 5: Place the first, second, third and fourth laces such that the spacing between adjacent laces when the laces are laid flat on the first layer is 5mm.

example 3

[0290] For Example 3: In this example, position 6 ties between the first and second layers. The first to sixth laces were placed such that when the laces lay flat on the first layer, there was no space between adjacent laces and adjacent laces overlapped each other by 3mm.

[0291] For all instances, the tie straps should be positioned accordingly, leaving sufficient space at the lateral edges of the first and second layers to allow the first layer to be attached to the second layer in the manner described below.

[0292] For all example structures, both the first and second layers were made of the material of Example 2 of Table 1 . The straps used in Example Constructions 1, 2, 3 and 5 were made from the strap material of Example 4 of Table 2, while the straps of Example Construction 4 were made from the strap material of Example 1 of Table 2.

[0293] Remove the remaining release layer from the remaining tape pieces on all four tie straps, and attach the second layer over t...

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Abstract

The invention refers to a disposable absorbent article such as a diaper, a pant or a sanitary napkin. The disposable absorbent article further comprises a structure which is able to elongate and simultaneously convert from a flat configuration into an erected configuration, the erected configuration having a higher caliper (thickness). The structure consists of non-extensible and non-elastic materials.

Description

Background technique [0001] The use of extensible and elastic materials in a wide variety of products, such as absorbent articles, is well known in the art. For example, such materials are often included in the waistband, ear panels or leg cuffs of diapers. [0002] One disadvantage often associated with extensible and elastic materials such as (elastic) films or nonwoven webs is that their width decreases when they are stretched along their lengthwise dimension. This characteristic is commonly referred to as necking. Additionally, extensible materials, as well as elastic materials, generally decrease in thickness when stretched. [0003] In general, materials that increase in thickness when stretched are also known in the art. These so-called "auxetic materials" are materials with a negative Poisson's ratio. When stretched, they become thicker perpendicular to the applied force. This property is due to their hinge-like structure, which flexes when stretched. Auxetic mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/49A61F13/494A61F13/56A61F13/62A61F13/15
CPCA61F13/49011A61F13/49015A61F13/5633B32B5/04B32B7/14B32B3/26A61F2013/1539A61F2013/49042A61F2013/49047A61F2013/4905A61F2013/49055A61F2013/49098B32B2307/50B32B2555/02A61F13/5638B32B2305/00A61F13/49466A61F13/62A61F13/627A61F2013/49493B32B5/022B32B5/024B32B5/026B32B5/06B32B5/18B32B5/22B32B5/245B32B5/26B32B27/065B32B27/08B32B27/10B32B27/12B32B27/32B32B29/005B32B29/007B32B29/02B32B3/08B32B2262/02B32B2262/06B32B2262/08B32B2266/06B32B2266/08B32B2307/51B32B2307/54B32B2307/546B32B2307/718B32B2307/724B32B2307/7265B32B2555/00B32B7/05A61F13/01034A61F13/01038A61F13/15203A61F13/493A61F13/474A61F2013/15373A61F2013/530007A61F2013/530802
Inventor M·K·希皮T·利贝M·J·克林
Owner PROCTER & GAMBLE CO