BIODEGRADABLE DISPOSABLE FOOD PACKAGING, METHOD OF ITS PRODUCTION AND MOULD FOR PRODUCTION OF BIODEGRADABLE DISPOSABLE PACKAGING

Fecha de publicación: 12/10/2022
Fuente: WIPO Meat
A biodegradable disposable packaging (1), preferably for meat, meat products or dairy products, is from the material which includes cereal flour and cellulose. The amount of cellulose is up to 20% of the mass. During the production the whole grain cereal flour, the cellulose and the water is mixed into a dough (3); the dough (3) is rolled into slabs with thickness which corresponds to the desired thickness of the wall of the finished packaging (1) with margin of error being -5% to +25%; subsequently the dough (3) is formed into the desired shape of the packaging (1) by means of a mould (2); and the dough (3) is dried by heat in the mould (2). Preferably, the rolled slab is inserted into a two-part mould (2) and the temperature of the dough (3) during drying reaches up to 220°C; preferably within the range 50°C to 160°C. The dough (3) is heated by the heat transfer from the heated mould (2) and/or by the microwave radiation and/or by a direct flame, and it is left in the mould (2) until the moisture decreases to 20% and less. The mould (2) is from plaster, carbon, earthenware, or sand.