Nonwoven natural silk fabric and method for producing same

A sheet of nonwoven natural silk textile;

• comprising yarns and/or fibres of fibroin coated with sericin A, sericin B and sericin C;
• said yarns or fibres comprising fibroin in a quantity between 70% and 80% and sericin A, sericin B and sericin C in a quantity between 20% and 30%, by weight with respect to the total weight of the yarn or fibre;
• and
• comprising at least one protruding border located at the periphery of said sheet.

A manufacturing method of a nonwoven natural silk textile, comprising the following steps:

• (a) rearing a silkworm;
• (b) taking the silkworm at a time when it secretes natural silk;
• (c) depositing it on a surface of a substrate wherein:
• the surface of the substrate does not contain rough areas with size greater than 3 mm;
• the surface of the substrate does not contain recesses with width greater than 1.5 cm;
• and
• the surface and/or the substrate is configured so as to restrict the progression of the silkworm;
• (d) waiting the time required for the desired quantity of natural silk to be deposited on the surface of the substrate, or for the silkworm to have secreted all its silk;
• (e) removing the silkworm from the nonwoven natural silk textile obtained;
• and
• (f) optionally, separating the nonwoven natural silk textile from the surface of the substrate.