a wrapping method for operating a vertical , inclined or horizontal type wrapping machine for wrapping food products such as loaves of bread , wads of noodles or the like with synthetic resin film is free from the problem which are inherent in conventional wrapping machines related to abrupt stopping actions of the wrapping operation whenever products are incorrectly positioned . the method provides a way to bypass the problem by detecting in advance incorrectly positioned products and temporarily halting only the operation of the cutting blades without stopping the overall operation of the machine . the method according to the present invention can significantly enhance the efficiency of the wrapping operation and reduce the time and labor required to remove the trouble in a conventional machine .