Elastic material coated in fibers, a diaper comprising said elastic material and a method for the production thereof

1. A composite material comprising an elastic film, made of polymer material, and a coating made of flocked fibers fixed to at least one face of said film, by a layer of bonding material, wherein said bonding material is distributed discontinuously and that the quantity of fibers per surface unit on said at least one face ranges from 5 g/m 2 to 40 g/m 2 .

2. Composite material as claimed in claim 1 , wherein said layer of bonding material has elastic properties.

3. Composite material as claimed in claim 2 , which has elasticity prevalently in the direction crosswise to machine direction.

4. Composite material as claimed in claim 2 , which has elasticity in two directions orthogonal to each other.

5. Composite material as claimed in claim 1 , which has elasticity prevalently in the direction crosswise to machine direction.

6. Composite material as claimed in claim 1 , which has elasticity in two directions orthogonal to each other.

7. Composite material as claimed in claim 1 , having a permanent deformation equal to or less than approximately 20% after a stress cycle with elongation at 80% of the original length thereof.

8. Composite material as claimed in claim 1 , wherein said polymer film has a thickness ranging from 5 to 400 μm, preferably from 20 to 200 μm, and even more preferably from 30 to 70 μm.

9. Composite material as claimed in claim 1 , further comprising on said at least one face a quantity of fibers per surface unit on at least one face ranging from 7 g/m 2 to 20 g/m 2 .

10. Composite material as claimed in claim 1 , wherein a quantity of fiber bonding material ranging from 1 to 30 g/m 2 , preferably from 5 to 10 g/m 2 on each face, is applied to said at least one face, the weight being determined on the dried or cross-linked product.

11. Composite material as claimed in claim 1 , wherein said fibers are thermoplastic fibers.

12. Composite material as claimed in claim 1 , wherein said fibers have a count ranging from 0.3 to 3.3 dtex.

13. Composite material as claimed in claim 1 , wherein said fibers have a length ranging from 0.2 to 1.5 mm.

14. Composite material as claimed in claim 1 , further comprising a coating of flocked fibers on both faces.

15. Composite material as claimed in claim 1 , wherein said elastic film is produced with a polymer chosen from the group comprising: polyolefins, ethylene-propylene copolymers, styrene-butadiene, polyurethane.

16. Composite material as claimed in claim 1 , wherein said bonding layer is formed of an elastic polymerized resin.

17. Composite material as claimed in claim 16 , wherein said elastic polymerized resin forming the bonding layer is chosen from the group comprising: resins based on acrylonitrile copolymers and acrylic esters; styrene-acrylic resins; acrylic thermal cross-linking resins.

18. Composite material as claimed in claim 1 , wherein said bonding material of the flocked fibers is an adhesive.

19. Composite material as claimed in claim 18 , wherein said adhesive is a hot melt adhesive.

20. Composite material as claimed in claim 18 , wherein said adhesive is based on polyolefins or synthetic rubbers.

21. Composite material as claimed in claim 1 , having a permanent deformation equal to or less than approximately 20% after a stress cycle with elongation at 80% of the original length thereof.

22. An absorbent article comprising at least one component formed with a composite material including an elastic film, made of polymer material, and a coating made of flocked fibers fixed to at least one face of said film, by a layer of bonding material, wherein said bonding material is distributed discontinuously and that the quantity of fibers per surface unit on said at least one face ranges from 5 g/m 2 to 40 g/m 2 .

23. A baby diaper comprising elastic closing tabs, wherein said elastic tabs have at least one portion made with a composite material including an elastic film, made of polymer material, and a coating made of flocked fibers fixed to at least one face of said film, by a layer of bonding material, wherein said bonding material is distributed discontinuously and that the quantity of fibers per surface unit on said at least one face ranges from 5 g/m 2 to 40 g/m 2 .

24. Training pants comprising at least one elastic band at the height of the waist, produced at least in part with a portion of composite material including an elastic film, made of polymer material, and a coating made of flocked fibers fixed to at least one face of said film, by a layer of bonding material, wherein said bonding material is distributed discontinuously and that the quantity of fibers per surface unit on said at least one face ranges from 5 g/m 2 to 40 g/m 2 .

25. A composite material comprising:

an elastic film having a surface and another surface;

a layer of bonding material arranged discontinuously on said surface of said elastic film;

a coating made of flocked fibers fixed to said surface of said elastic film by said layer of bonding material.

26. A composite material in accordance with claim 25 , wherein:

said coating of said fibers arranged on said face in a quantity ranging from 5 g/m 2 to 40 g/m 2 ;

said elastic film is made of polymer material.

27. A composite material in accordance with claim 25 , wherein:

said layer of bonding material has elastic properties comparable to said elastic film.

28. A composite material in accordance with claim 25 , wherein:

said elastic film has elasticity in two directions orthogonal to each other.

29. A composite material in accordance with claim 28 , wherein:

said flocked fibers are arranged orthogonal to said surface of said elastic film;

said a layer of bonding material is arranged in a grid pattern on said surface of said elastic film.

30. A composite material in accordance with claim 25 , further comprising:

another layer of bonding material distributed discontinuously on said another surface of said elastic film;

another coating made of flocked fibers fixed to said another surface of said elastic film by said another layer of bonding material.

31. A composite material in accordance with claim 25 , wherein:

said flocked fibers are arranged orthogonal to said surface of said elastic film;

said a layer of bonding material is arranged in a grid pattern on said surface of said elastic film.