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Fastening film system and assembly comprising a fastening film system and a substrate

A technology for fastening elements and films, applied in the field of disposable absorbent products, can solve the problem of insufficient degree of sanitary napkins

Active Publication Date: 2010-09-29
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sanitary napkins available in the prior art meet these requirements only to an insufficient extent

Method used

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  • Fastening film system and assembly comprising a fastening film system and a substrate
  • Fastening film system and assembly comprising a fastening film system and a substrate
  • Fastening film system and assembly comprising a fastening film system and a substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] A portion of a mushroom-shaped hook web commercially available from 3M Company, St. Paul, MN, USA under the trade designation 3M Microreplicated Hook CS-600 is provided. This part has a dimension of 40 mm in CD and 50 mm in MD. The thickness of the hook web including the height of the hook-shaped male fastening elements 4 was 396 μm. The average height of the hook-shaped male fastening elements 4 is about 310 μm. The hook-shaped protruding fastening elements 4 are integrated with the backing 7 of the hook web, and they operate at 1626 hooks / inch 2 The density of is distributed substantially homogeneously over the surface area of ​​the hook web. The single hook male fastening element has a stem 4a with a diameter of approximately 250 μm and an enlarged oval portion 4b at the end of the stem opposite the backing 7 of the hook web.

[0176] A circular through-hole 2 is inserted in the hook portion by punching, whereby the through-hole 2 extends perpendicular to and thro...

Embodiment 2

[0187] Example 1 was repeated for a ratio of the surface area of ​​the vias 2 to the surface area of ​​the backing 7 of 0.2, except that the diameter of the vias 2 was 5 mm. The distance of the through holes 2 is about 5mm. All other parameters and conditions are the same as Example 1.

[0188] The results are shown in Table 2.

[0189] Table 2

[0190]

Embodiment 3

[0192]Example 1 was repeated except that another hook web commercially available from 3M Company, St. Paul, MN, USA under the trade designation CS-1010 was used. The thickness of the hook web including the height of the hook protruding from the fastening element 4 was 575 μm. The average height of the hook-shaped male fastening elements 4 is about 446 μm. The hooks 4 are integrated with the backing 7 of the hook web, and they operate at 490 hooks / inch 2 The density of is distributed substantially homogeneously over the surface area of ​​the hook web. A single hook-shaped male fastening element 4 has a stem 4a having a diameter of approximately 238 μm in CD and approximately 360 μm in diameter along MD; an enlarged anchor portion 4b at At the end of the stem opposite the backing 7 of the hook web there are two protrusions emanating from the stem and curving downwards.

[0193] The results are summarized in Table 3 and Figure 5 icon.

[0194] table 3

[0195]

[0196] ...

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Abstract

The present invention relates to a fastening film system 1 comprising a backing 7 and an adhesive layer 6 on one of the two major surfaces of the backing 7, the backing 7 bearing on its exposed major surface 3 a opposite to the adhesive layer 6 a plurality of male fastening elements 4 capable of engaging with fibrous materials 32 having a plurality of complementary female fastening elements, and a plurality of through-holes 2 extending through the thickness 11 of the backing 7 so that the adhesive layer 6 attached to the backing 7 is exposed through such through-holes 2 wherein at least one of said through-holes 2 is encompassed by the backing 7, and wherein the fastening film system 1 releasably adheres to said fibrous materials 32 through a combination of a mechanical and an adhesive bonding mechanism.

Description

technical field [0001] The present invention relates to a fastening film system adapted to be releasably adhered to fibrous materials by a combination of mechanical and adhesive bonding mechanisms. The invention also relates to a method for producing such a fastening film system and a disposable absorbent article, such as a diaper or a sanitary napkin, using such a fastening film system. Background technique [0002] EP0321232 discloses an absorbent article such as a diaper comprising a pair of taped tabs attached to the end regions of the diaper. Each of these tape joints presents on its respective user end a fastening surface having one or two exposed rectangular areas of adhesive adjacent to the rectangular strips of hook fastening elements. This construction provides a combination of mechanical and adhesive closure mechanisms when attaching the tape to the joining members thereby securing the diaper to the wearer's body. [0003] EP0974326 also discloses a disposable a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A44B18/00D04H1/44A61F13/58D04H1/00A61F13/56
CPCA44B18/0034A61F13/58D04H13/00A61F13/15A61F13/56
Inventor 约翰·F·彼得森
Owner 3M INNOVATIVE PROPERTIES CO
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