Sheet containing a thermoplastic elastomer, preparation method and use

A sheet comprising a support layer, a cover layer and a compound structure, wherein the sheet is suitable for preparing a sewn product by folding the sheet, placing the support layers together and sewing the two parts of the sheet in the contact area, wherein

• the support layer contains a textile layer,
• the cover layer is a compact layer containing a thermoplastic elastomer, is opaque or has a light transmittance of 1% to 50%, and is arranged on the textile layer of the support layer,
• the compound structure consists of a part of the support layer and a part of the cover layer interpenetrating each other, wherein the extent of interpenetration, defined as [(thickness of the compound structure)/(thickness of the cover layer)]×100%, is 5% to 99%, the thickness of the cover layer being the thickness of the compound structure plus the thickness of the part of the cover layer not being part of the compound structure, and
• wherein the part of the cover layer not being part of the compound structure has a thickness of at least 0.04 mm.