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Three-dimensional apertured substrates

A substrate and fiber technology, applied in the field of three-dimensional open-pore substrates, can solve the problems of loss, increased rewet, leakage, etc., and achieve the effects of reducing loss and leakage, reducing skin marks, and reducing fluid/skin contact

Pending Publication Date: 2019-04-02
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, larger pores lead to increased rewet
Fully hydrophobic topsheets, while desirable (as they do not retain fluid), have the potential risk of being prone to runoff and leakage problems, especially if the effective pore area is small

Method used

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  • Three-dimensional apertured substrates
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  • Three-dimensional apertured substrates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0175] Univariate experiments were performed using three different 3D apertured nonwoven substrates. First The three-dimensional apertured nonwoven substrate is completely hydrophobic and does not have any hydrophilic materials applied thereto. second The three-dimensional apertured substrate has a partially applied hydrophilic material adjacent to the pores and recesses, as described herein. The second 3D open-porous substrate is obtained by selectively depositing hydrophobic materials such as Figure 35 shown. Blue pigments and Raman spectroscopy were used to confirm that the hydrophilic material had indeed been applied selectively adjacent to the pores as desired. third The three-dimensional apertured substrate has a wearer-facing surface hydrophobic layer and a garment-facing surface hydrophilic layer. Except for the hydrophobic / hydrophilicity difference, the first three-dimensional apertured substrate, the second three-dimensional apertured substrate, and the third ...

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Abstract

A liquid permeable substrate for an absorbent article is disclosed. The substrate comprises a nonwoven hydrophobic layer. The substrate comprises a plurality of recesses, a plurality of projections, and a plurality of land areas. The land areas surround at least a majority of the plurality of projections and a plurality of the recesses. The plurality of recesses, the plurality of projections, andthe plurality of land areas together form a first three-dimensional surface on a first side of the substrate and a second three-dimensional surface on a second side of the substrate. A hydrophilic material is positioned only proximate to at least some of the apertures.

Description

technical field [0001] The present disclosure generally relates to three-dimensional apertured substrates. Background technique [0002] Absorbent articles for personal hygiene such as disposable diapers for infants, training pants for toddlers, adult incontinence underwear, and / or sanitary napkins are designed to absorb and contain body exudates, especially large quantities of urine , loose fecal discharge, and / or menstrual fluid (collectively referred to as "fluid"). These absorbent articles may comprise, in addition to other layers such as acquisition and / or distribution systems (if desired), several layers that provide different functions, such as a topsheet, a backsheet, and absorbent core. [0003] The topsheet is generally liquid permeable and is configured to receive fluid being expelled from the body and to help direct the fluid towards the acquisition and / or distribution system and / or towards the absorbent core. Fully hydrophilic topsheets are sometimes desirabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/511A61F13/512
CPCA61F13/51104A61F13/512A61F13/15203A61F13/496A61F13/51121A61F13/5116A61F13/5121A61F13/51305A61F13/515A61F2013/15406A61F2013/51178
Inventor R.罗萨蒂G.埃德姆S.克雷泽尔M.O.阿维莱斯
Owner THE PROCTER & GAMBLE COMPANY