Process and machine for water proofing semimanufactured footwear, clothing items and accessories, and semimanufactured products obtained with said process or machine

A process for waterproofing a semimanufactured product including footwear, clothing items and accessories, having a three-dimensional conformation with an inner surface and an outer surface, the process comprising the following operative steps:

• preparing a waterproofing sheath, which comprises at least one membrane made of semi-permeable material;
• applying a layer of glue to a piece of the semi-permeable membrane;
• cutting the piece of semi-permeable membrane to a size of the inner surface of the semimanufactured product;
• folding the piece of semi-permeable membrane;
• superimposing two edges of the folded piece of the semi-permeable membrane;
• welding the edges of the folded piece of semi-permeable membrane to form at least one strip and to give the waterproofing sheath a three-dimensional conformation;
• arranging the semimanufactured product onto a shaped support with the waterproofing sheath shaped for entirely or partially covering surfaces to be waterproofed of the semimanufactured product;
• and
• pressing the semimanufactured product, which is arranged on the shaped support with the waterproofing sheath, between two deformable plates.

A process for waterproofing a semimanufactured product including footwear, clothing items and accessories, having a three-dimensional conformation with an inner surface and an outer surface, the process comprising the following operative steps:

• preparing a waterproofing sheath, which comprises at least one membrane made of semi-permeable material;
• cutting a piece of semi-permeable membrane to a size of the inner surface of the semimanufactured product;
• folding the piece of semi-permeable membrane;
• superimposing two edges of the folded piece of the semi-permeable membrane;
• welding the edges of the folded piece of semi-permeable membrane to form at least one strip and to give the waterproofing sheath a three-dimensional conformation;
• applying a layer of glue to surfaces of the semimanufactured product;
• arranging the semimanufactured product onto a shaped support with the waterproofing sheath shaped for entirely or partially covering the surfaces to be waterproofed of the semimanufactured product;
• and
• pressing the semimanufactured product, which is arranged on the shaped support with the waterproofing sheath, between two deformable plates.