Method for assembling an upholstery for a seat or for stuffed furniture and related upholstery

1. A method for assembling an upholstery for a seat or for stuffed furniture comprising the steps of:

providing a first upholstery element and a second upholstery element to be sewn together, said first upholstery element and said second upholstery element each having an upper visible surface and a lower non-visible surface,

placing alongside, until in abutting contact, in a coplanar manner, a first edge of said first upholstery element with a first edge of said second upholstery element,

sewing together said first edge of said first upholstery element with said first edge of said second upholstery element with a 304 stitch;

positioning a tensioning element in contact with said lower non-visible surfaces of said first upholstery element and said second upholstery element and joining said tensioning element to said first and second upholstery elements together with the 304 stitch at a same time with the 304 stitch.

2. The method according to claim 1 , and further comprising sewing other edges of said upholstery by placing the other edges alongside one against the other in abutment position and joining the other edges with the 304 stitch, until a complete upholstery is formed.

3. The method according to claim 1 , and further comprising adjusting a width of the 304 stitch to a value comprised between 2 and 10 mm and a length of the 304 stitch to a value comprised between 0.2 and 4 mm.

4. The method according to claim 1 , and further comprising adjusting the width of the 304 stitch to 5 mm, and the length of the 304 stitch to 1.5 mm.

5. An upholstery for a seat or stuffed furniture comprising:

a first upholstery element and a second upholstery element sewn together, said first upholstery element and said second upholstery element each having an upper visible surface and a lower non-visible surface,

wherein a first edge of said first upholstery element and a first edge of said second upholstery element are positioned alongside one another, in abutting contact, in a coplanar manner,

said first edge of said first upholstery element and said first edge of said second upholstery element being sewn together with a 304 stitch;

a tensioning element positioned in contact with said lower non-visible surfaces of said first upholstery element and said second upholstery element and joining said tensioning element to said first and second upholstery elements together with the 304 stitch.

6. The upholstery according to claim 5 , wherein it is made with a material chosen from the group comprising natural leather, microfiber, technical fabric, eco leather, reground leather, crust leather, alcantara and compact fabric.

7. The upholstery according to claim 5 , wherein a width of the 304 stitch is comprised between 2 and 10 mm and a length of the 304 stitch is comprised between 0.2 and 4 mm.

8. The upholstery according to claim 7 , wherein the width of the 304 stitch is 5 mm, and the length of the 304 stitch is 1.5 mm.

9. A use of a 304 stitch comprising:

providing the 304 stitch as a single junction stitch for an abutted seam of materials having thicknesses comprised between 0.3 and 2.5 mm;

creating a flat seam for joining junction points of a leather and a lining, by overlapping the lining and the leather in closing zones of the flat seam of a seat or stuffed furniture and in construction of a bottom part of seat cushions and back, where the lining is not visible.

10. The use of the 304 stitch, according to claim 9 , as a joining seam on compact materials including natural leather, eco leather, reground leather, crust leather, microfiber, technical fabrics, alcantara, and compact fabrics.