The invention is directed to a polypropylene resin, which is suitable for manufacturing an air quenched blown film. In the main frame body, there is disposed a sheet placement plate which moves up and down according to the residual quantity of sheets placed, and there is disposed a sheet residual quantity display mechanism which displays the sheet residual quantity according to the upward and downward movements of the sheet placement plate. Between said channels, microreactors are arranged which are connected with the channels. A processor decodes drive data from files corresponding to barcodes.