Thermoformable foam sheeting for producing open containers

(57) Summary book invention relates to the sheet which consists of foaming material or contains at least one layer of foaming material and in which hot shaping is possible. By giving reducing work or 深絞り加工 to a sheet and expanding foaming material, especially the sheet of the present invention is applied, when carrying out hot shaping of the cup for packing and/or consuming food, the plate, etc. The foaming material of the sheet of the present invention consists of the polypropylene mixture which does 50*100 % content of high 溶融 intensity polypropylene, 0.1*0.7 g/cm -- desirable -- the density of 0.25*0.5 g/cm, and per 1 mm / 300*3000] -- it has the number of cells of 800*2500 preferably. Reducing work can be performed at a high iris diaphragm rate (for example, 1.5), fabrication can manufacture a difficult-shaped container, the problem of reducing work does not produce the sheet of the present invention by it, and the manufactured container has uniform opacity.