Liquid container, stop valve thereof and manufacturing method

The invention discloses a liquid container, a stop valve thereof and a manufacturing method. The liquid container comprises two layers of liquid storage films which are overlapped with each other so that at least one liquid storage unit can be formed. Each liquid storage unit is provided with a liquid storage chamber. The stop valve comprises two layers of valve films which are overlapped with each other. Each layer of valve film comprises an outer extending section and an inner extending section. The outer extending section and the inner extending section of each layer of valve film are integrally formed. The two layers of inner extending sections of the two layers of valve films and the liquid storage films are overlapped and connected with each other between the two layers of inner extending sections to form a liquid filling channel. In this way, the liquid storage chambers of the liquid storage units are filled with liquid by means of the liquid filling channel. After the liquid storage chambers are filled with the liquid, the liquid pressure of the liquid storage chambers act on the two layers of valve films so as to close the liquid filling channel, and therefore the liquid leakage is prevented.