Exercise mat with a continuous one-piece anti-slip strip

1. An exercise mat, comprising:

a fabric layer defining a first surface and an opposing second surface;

only one single anti-slip strip of a predetermined width and in a predetermined pattern, said anti-slip strip being bonded to and covered over a part of said first surface of said fabric layer so that said first surface of said fabric layer defines at least one exposed portion beyond said anti-slip strip; and

an elastic cushion layer bonded to and covered over said second surface of said fabric layer;

wherein said anti-slip strip is a continuous one-piece member defining two opposite lateral portions and a middle portion between said two opposite lateral portions, said two opposite lateral portions and said middle portion being disposed at different elevations;

said fabric layer defines a plurality of local areas in said first surface;

at least one said exposed portion and a part of said anti-slip strip exist in each said local area within a surface area approximately equal to the surface area of the palm of an adult.

2. The exercise mat as claimed in claim 1 , wherein said elastic cushion layer is selected from the group of thermosetting plastics and thermoplastics.

3. The exercise mat as claimed in claim 2 , wherein said thermosetting plastic material is selected from the group of polyurethane, epoxy resins, unsaturated polyesters and bakelite.

4. The exercise mat as claimed in claim 2 , wherein said thermoplastic material is a composite material prepared by mixing a soft-segment plastic material with a hard-segment plastic material, said soft-segment plastic material being selected from the group of natural rubber, ethylene-propylene rubber, butyl rubber, polybutadiene, polyisoprene, polyisobutylene and polyethylene-butene; said hard-segment plastic material is selected from the group of polyethylene, polystyrene, polypropylene, polyurethane, polyester and polyamide.

5. The exercise mat as claimed in claim 1 , wherein said elastic cushion layer comprises a plurality of through holes that expose a part of said second surface of said fabric layer to the outside.

6. The exercise mat as claimed in claim 1 , wherein said middle portion of said anti-slip strip has an uneven cross section.

7. The exercise mat as claimed in claim 1 , wherein said anti-slip strip further comprises a plurality of grooves located in said middle portion.

8. The exercise mat as claimed in claim 1 , wherein the thickness of said middle portion of said anti-slip strip is equal to or less than 1 mm.

9. The exercise mat as claimed in claim 1 , wherein in said first surface of said fabric layer beyond said local areas, at least one said exposed portion and a part of said anti-slip strip exist in a surface area approximately equal to the surface area of the palm of an adult.

10. The exercise mat as claimed in claim 1 , wherein the main component of said anti-slip strip is silicone.

11. The exercise mat as claimed in claim 1 , wherein said anti-slip strip is made in the form of a single line without intersections.

12. The exercise mat as claimed in claim 1 , wherein said anti-slip strip is self-intersected, providing a plurality of intersections.

13. The exercise mat as claimed in claim 1 , wherein said anti-slip strip has a consistent width in all parts thereof.

14. The exercise mat as claimed in claim 1 , wherein said anti-slip strip has an inconsistent width portion.

15. The exercise mat as claimed in claim 1 , wherein said anti-slip strip comprises a plurality of through holes cut through said middle portion to expose a part of said first surface of said fabric layer to the outside.

16. The exercise mat as claimed in claim 1 , wherein said anti-slip strip contains a thermochromic color-changing substance that changes the color subject to a change in temperature.