Spout assembly for liquid container

A spout assembly for a liquid container, comprising:

• a spouting member formed on an outlet of the container;
• a closer coupled on the spouting member having a spouting groove formed therein adapted to receive the spouting member;
• a male seal structure formed on the spouting member comprising a male seal projection extending, having a thickness which is less than a thickness of the spouting member from an outer circumference of the spouting member and an elastic seal projection extending from an inner circumference of the spouting member and adjacent the male seal projection;
• and
• a female seal structure formed on the closer, the female seal structure corresponding to the male seal structure and comprising an insertion groove extending from and parallel with the spouting groove and having a width which is less than a width of the spouting groove configured to receive the male seal projection from the spouting member and a lower end outer circumferential surface and circumferential seal wall configured adjacent the insertion groove to abut the elastic seal projection of the spouting member thereby sealing the liquid container.