Elastic bandage that can be used, in particular, for the treatment and prevention of vein diseases

1. A compression bandage comprising a nonelastic material, which exhibits a thickness of greater than 1.8 mm and a nonwoven of crimped fibers obtained from short conjugate fibers,

said nonelastic material and said nonwoven of crimped fibers being assembled together and the nonwoven of crimped fibers having a grammage of between 70 g/m 2 and 300 g/m 2 ,

said crimped fibers being uniformly crimped in a thickness direction of the nonwoven of crimped fibers and exhibiting a mean curvature radius between 10 and 200 micrometers, and a surface of the nonwoven of crimped fibers having between 10 and 50 crimped fibers/cm 2 .

2. The compression bandage as claimed in claim 1 , wherein the short conjugate fibers are bicomponent fibers that are made of two polymer components which exhibit a softening point greater than or equal to 100° C., and which are selected from the group consisting of polypropylene polymers, polyester polymers and polyamide polymers.

3. The compression bandage as claimed in claim 2 , wherein the bicomponent fibers are composed of a first polymer which is a polyethylene terephthalate and of a second polymer which is a copolymer of an alkylene arylate with isophthalic acid and/or diethylene glycol.

4. The compression bandage as claimed in claim 2 , wherein the two polymer components consist of two different aromatic polyester polymers.

5. The compression bandage as claimed in claim 1 , wherein the short conjugate fibers have a mean count of between 1 and 5 dtex and a mean length of between 10 and 100 mm.

6. The compression bandage as claimed in claim 1 , wherein the crimped fibers exhibit a mean curvature radius of between 50 and 160 microns.

7. The compression bandage as claimed in claim 1 , wherein the nonwoven of crimped fibers has a grammage of between 80 and 200 g/m 2 .

8. The compression bandage as claimed in claim 1 , wherein the surface of the nonwoven of crimped fibers has between 10 and 35 crimped fibers/cm 2 .

9. The compression bandage as claimed in claim 1 , wherein the nonwoven of crimped fibers exhibits, in a cross-section taken parallel to the thickness direction thereof,

a fiber incurvation ratio greater than or equal to 1.3, and

a ratio between a minimum value of the fiber incurvation ratio and a maximum value of the fiber incurvation ratio greater than 75%,

wherein said ratio and said fiber incurvation ratio are measured in three parts of the nonwoven of crimped fibers, each part corresponding to one third thereof in a cross-section taken perpendicular to the thickness direction of the nonwoven of crimped fibers.

10. The compression bandage as claimed in claim 1 , wherein the nonelastic material is selected in the group consisting of textile materials, cellular materials, films and their combinations.

11. The compression bandage as claimed in claim 1 , wherein the nonelastic material is chosen from absorbent textile materials.

12. The compression bandage as claimed in claim 11 , wherein the absorbent textile materials comprise knitwear, wovens, nonwovens and their combinations.

13. The compression bandage as claimed in claim 1 , wherein the nonelastic material is an absorbent nonwoven having a thickness of between 1.8 and 3 mm.

14. The compression bandage as claimed in claim 13 , wherein the absorbent nonwoven comprises a padding.

15. The compression bandage as claimed in claim 1 , wherein the nonwoven of crimped fibers and the nonelastic material are assembled by needling, with an adhesive or by ultrasound.

16. The compression bandage as claimed in claim 1 , wherein the nonwoven of crimped fibers is composed of bicomponent fibers based on aromatic polyester polymers, the nonwoven of crimped fibers has a grammage of between 90 and 150 g/m 2 and the surface of the nonwoven of crimped fibers has between 10 and 35 crimped fibers/cm 2 .

17. The use of a compression bandage as claimed in claim 1 comprising applying the compression bandage to a limb of a patient.

18. A process for the manufacture of a compression bandage as claimed in claim 1 , wherein the nonelastic material and the nonwoven of crimped fibers are assembled together by needling, without prestressing the nonwoven of crimped fibers.

19. The compression bandage as claimed in claim 1 , wherein the short conjugate fibers have a mean count of between 1.5 and 3 dtex and a mean length of between 40 and 60 mm.

20. The compression bandage as claimed in claim 1 , wherein the crimped fibers exhibit a mean curvature radius of between 70 and 130 microns.

21. The compression bandage as claimed in claim 1 , wherein the nonwoven of crimped fibers has a grammage of between 90 and 150 g/m 2 .