Method for rapidly judging preparation process of aluminum-plastic composite film

The invention provides a method for rapidly judging a preparation process of an aluminum-plastic composite film, which comprises the following steps of: (1) providing an aluminum-plastic composite film sample with the length of L, stripping a polypropylene film in the aluminum-plastic composite film relative to an aluminum foil with the stripping distance of S which is less than L, and setting an intersection interface of the polypropylene film and the aluminum foil as a first position; (2) tying a heavy object at the stripped aluminum foil end, and connecting the stripped polypropylene film end into a drying oven; (3) baking in a baking oven for a certain time; (4) taking out the sample, recording the intersection interface of the polypropylene film and the aluminum foil as a second position, measuring the distance difference between the first position and the second position, and if the distance difference is less than or equal to a preset value, deducing that the aluminum-plastic composite film sample is p