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

A fastening element, film technology, applied in the field of disposable absorbent products, which can solve the problem of insufficient sanitary napkins, etc.

Active Publication Date: 2006-08-16
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 part of the mushroom-shaped hook fiber web is provided, which is commercially available under the trade name of 3M Microreplicated Hook CS-600 from 3M Company, St. Paul, MN, USA. This part has a size of 40 mm along the CD and a size of 50 mm along the MD. The thickness of the hook web including the height of the hook-shaped protruding fastening elements 4 is 396 μm. The average height of the hook-shaped protruding fastening element 4 is approximately 310 μm. The hook-shaped protruding fastening elements 4 are integrated with the backing 7 of the hook web, and they are substantially uniformly distributed over the surface area of ​​the hook web at a density of 1,626 hooks / inch 2. The single hook-shaped protruding fastening element has a stem portion 4a with a diameter of approximately 250 μm and an enlarged oval portion 4b at the end of the stem portion opposite to the backing 7 of the hook web.

[0176] A circular through hole 2 is inserted into the hook part by punching, ...

Embodiment 2

[0186] Example 1 was repeated for the case where the ratio of the surface area of ​​the through hole 2 to the surface area of ​​the backing 7 was 0.2, except that the diameter of the through hole 2 was 5 mm. The distance of the through hole 2 is about 5 mm. All other parameters and conditions are the same as in Example 1.

[0187] The results are shown in Table 2.

[0188] Average 90° peel adhesion

Embodiment 3

[0190]Example 1 was repeated, with the difference that another hook fiber web purchased under the trade name CS-1010 from 3M Company, St. Paul, MN, USA was used. The thickness of the hook web including the height of the hook protruding from the fastening element 4 is 575 μm. The average height of the hook-shaped protruding fastening element 4 is approximately 446 μm. The hooks 4 are integrated with the backing 7 of the hook web, and they are substantially uniformly distributed over the surface area of ​​the hook web at a density of 490 hooks / inch2. The single hook-shaped protruding fastening element 4 has: a stem 4a having a diameter of approximately 238 μm along the CD and a diameter of approximately 360 μm along the MD; and an enlarged anchor-shaped portion 4b, the enlarged anchor-shaped portion 4b in The end of the stem opposite to the backing 7 of the hook fiber net has two protrusions that are emitted from the stem and bent downward.

[0191] The results are summarized in Tab...

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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, which is suitable for releasably adhering to a fiber material through a combination of a mechanical joining mechanism and an adhesive joining mechanism. The present invention also relates to a method of preparing such a fastening film system and a disposable absorbent article such as a diaper or a sanitary napkin using the fastening film system. Background technique [0002] EP0321232 discloses an absorbent article such as a diaper, comprising a pair of tape joints connected to the end regions of the diaper. Each of these tape joints presents a fastening surface on its respective user end with one or two exposed rectangular adhesive areas adjacent to the rectangular strip of hook fastening element. This structure provides a combination of a mechanical closure mechanism and an adhesive closure mechanism when the tape is attached to the overlapping member thereby securing the diaper to the wearer's bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/58A61F13/56A44B18/00D04H1/00D04H1/44
CPCA61F13/58A44B18/0034D04H13/00A61F13/15A61F13/56
Inventor 约翰·F·彼得森
Owner 3M INNOVATIVE PROPERTIES CO