Unlock instant, AI-driven research and patent intelligence for your innovation.

Flexible and compliant mechanically deformed nonwoven for use in absorbent articles

A non-woven, mechanical deformation technology, used in non-woven fabrics, textiles and papermaking, applications, etc., can solve problems such as flexibility damage

Pending Publication Date: 2022-07-19
PROCTER & GAMBLE CO
View PDF24 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these properties are often contradictory
In other words, when comfort is increased (for example by increasing the basis weight and / or total amount of soft materials used), flexibility is generally compromised

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible and compliant mechanically deformed nonwoven for use in absorbent articles
  • Flexible and compliant mechanically deformed nonwoven for use in absorbent articles
  • Flexible and compliant mechanically deformed nonwoven for use in absorbent articles

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0079] Example 1: Bilayer Nonwoven Comprising Carded Nonwoven and Airlaid Layers

[0080]

[0081] While the precursor had relatively good Z-Flexibility and Recovery Index, the precursor nonwoven had very low drop values ​​and thus made the diaper very stiff.

[0082]

[0083]

[0084] Both mechanical deformation treatments increased the bending drop value and the Z compliance index. Mechanical deformation disrupts the usual compromise between flexibility and comfort. The recovery index after mechanical treatment was reduced but still acceptable.

example 2

[0085] Example 2: MBAL

[0086]

[0087]

[0088]

[0089]

[0090]This shows the same effect of different classes of material (MBAL) as in the first example above. Depth of Engagement (DOE) is appropriate for different materials and treatments considered for optimum results.

[0091]

[0092] This treatment C does not break the compromise between flexibility and comfort as effectively as the two previous treatments A and B, but still improves the horizontal flex drop value. A lower DOE was used in Process C because the higher DOE caused material integrity issues for this process.

example 3

[0093] Example 3: Spunlace cloth

[0094]

[0095]

[0096]

[0097]

[0098] Treatments A and B show how DOE affects the desired flexibility and comfort of the deformed nonwoven. Both properties were improved at different DOE values, with a higher DOE in Treatment A, resulting in increased protrusion size, and thus higher flexibility, however, compared to the lower DOE in Treatment B. Compared with the similar treatment of , the influence on the horizontal bending drop value is reduced. However, the two textured nonwovens obtained by Treatment A and Treatment B are generally suitable for use in the present invention.

[0099] General Description of Absorbent Article 20

[0100] Exemplary absorbent articles that can use the nonwovens of the present invention are Figure 1 to Figure 4 shown in the form of a baby taped diaper 20. The taped diaper 20 is shown for illustration purposes only, as the present invention is suitable for making a wide variety of diap...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
widthaaaaaaaaaa
Login to View More

Abstract

The invention provides a mechanically deformed nonwoven (60) comprising a plurality of protrusions (62) extending outwardly from a first surface (64) of the nonwoven and having openings (68) in a second surface (66) of the nonwoven corresponding to the protrusions. The nonwoven has a horizontal bend fall at 100 mm of at least 75 mm and a Z flexibility index of at least 50 mm3 / N. The nonwoven may be used in an absorbent article, such as a diaper, as an acquisition layer between the absorbent core and the backsheet and / or as a masking layer between the absorbent layer core and the backsheet.

Description

technical field [0001] The present disclosure generally relates to nonwovens useful in disposable absorbent articles for personal hygiene, such as diapers, feminine care pads, or adult incontinence products. The nonwoven can be used, for example, as an acquisition layer between the topsheet and the absorbent core of the article, and / or as a masking layer between the absorbent layer and the backsheet. Background technique [0002] Disposable absorbent articles such as feminine hygiene products, taped diapers, pant diapers, and incontinence articles are designed to absorb and contain fluids from the wearer's body. There is a continuing need to provide absorbent articles that have good absorbency, are soft to the touch and are economical to produce. [0003] Various configurations have been proposed for absorbent articles. Today, most absorbent articles include the following layers (as considered from the wearer-facing side to the garment-facing side): a liquid-permeable tops...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/537D04H1/425D04H1/498D04H1/541D04H1/58D04H1/732D04H3/007B32B5/26
CPCA61F13/53708A61F13/53747A61F13/53756A61F2013/53782D04H1/732D04H1/5412D04H1/5418D04H1/425D04H1/58D04H1/498D04H3/007A61F2013/53778B32B3/28B32B3/266B32B5/022B32B2555/02B32B5/265A61F13/51108A61F13/5116A61F13/51476A61F13/51478A61F2013/51452A61F2013/51494
Inventor A.佩里E.G.比安基S.L.乔瓦尼A.格雷尼尔R.赫克M.K.希佩T.I.马兰M.施密特
Owner PROCTER & GAMBLE CO