Looped layer or strip including differential attachment areas and nappy comprising such a layer

Patent metadata

Field	Value
Publication number	US-10624801-B2
Application number	US-201515301964-A
Country	US
Kind code	B2
Filing date	Apr 7, 2015
Priority date	Apr 8, 2014
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

The invention relates to a looped layer in the form of a laminate including an inner supporting element ( 1 ), for example a non-woven fabric or a plastic film, and a plurality of fibres and/or filaments ( 3 ) attached to the outer surface of the supporting element so as to form loops for engaging with hooks, the attachment being carried out in a attachment region, while in at least one other so-called looped region the filaments and/or fibres are not attached to the supporting element so as to form loops, characterised in that at least in one area ( 5 ) of at least one attachment region the attachment is only carried out in a partial manner, while at least in one other area ( 4 ) of at least one attachment region the attachment is carried out in a complete manner.

First claim

The invention claimed is:

1. A looped layer in the form of a laminate comprising an internal support element ( 1 ), formed by at least one non-woven fabric, and a plurality of fibers and/or filaments ( 3 ) secured to an external face of the support element so as to form loops for engaging with hooks, said plurality of fibers and/or filaments ( 3 ) being secured to said external face in at least one attachment region, while in at least one other so-called looped region the filaments and/or fibers are not secured to the support element so as to thus form loops, characterized in that in at least one zone ( 5 ) of the at least one attachment region said plurality of fibers and/or filaments ( 3 ) are secured in a partial manner to said external face, while in at least one other zone ( 4 ) of the at least one attachment region said plurality of fibers and/or filaments ( 3 ) are secured to said external face in a complete manner.

2. The layer according to claim 1 , characterized in that said plurality of fibers and/or filaments ( 3 ) are secured to said external face in both said at least one zone and said at least one other zone by welding.

3. The layer according to claim 2 , characterized in that it exhibits a weld differential greater than 1.5.

4. The layer according to claim 1 , characterized in that the plurality of fibers and/or filaments ( 3 ) forming the loops ( 7 ) are consolidated into at least one non-woven fabric.

5. The layer according to claim 1 , characterized in that at least one layer of printing ink intended to form a pattern or patterns or designs is deposited onto the support element ( 1 ).

6. The layer according to claim 5 , characterized in that said at least one zone and said at least one other zone alternate both in a CD direction along a given strip and in the MD direction of a strip to an adjacent strip.

7. The layer according to claim 1 , characterized in that the at least one attachment region is/are made in the form of strips extending in a CD direction of the laminate, said at least one zone and said at least one other zones being produced alternately along a strip in the CD direction.

8. The layer according to claim 1 , characterized in that said at least one other zone are made alternately in a MD direction of a strip to an adjacent strip.

9. The layer according to claim 1 , characterized in that said at least one zone and said at least one other zone are made in the form of a semi-circle of which the diameter is contiguous to a looped region.

10. The layer according to claim 1 , characterized in that said plurality of fibers and/or filaments ( 3 ) are secured to said external face in both said at least one zone and said at least one other zone by calendaring.

11. The layer according to claim 1 , characterized in that the at least one attachment region is/are made in the form of strips extending in a CD direction of the laminate parallel to one another, said at least one zone and said at least one other zone being produced alternatively along a strip in the CD direction.

12. A diaper comprising a layer according to claim 1 .

13. A diaper according to claim 11 , characterized in that the layer forms a landing zone of the diaper.

14. A self-fastening closure system comprising on the one hand a loop element comprising a layer according to claim 1 and on the other hand a hook element, the hooks of which are arranged to be able to engage in the loops in order to provide the closure.

Assignees

• Aplix Sa

Inventors

• Mahe Anthony Bertrand

Classifications

• D04H1/45

  by forming intermeshing loops or stitches from some of the fibres · CPC title

• B32B5/022

  Non-woven fabric · CPC title

• D04H11/08

  formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking (needling machines D04H18/00) · CPC title

• B32B2555/02

  Diapers or napkins · CPC title

• A61F13/627 Primary

  characterised by the loop · CPC title