Packaging container and method for using same

A method of using a packaging container which contains a water absorptive content to be impregnated with a liquid,

• the packaging container comprising:
• a container body provided with an opening and closing section which can be opened and closed;
• a liquid enclosure member which is disposed in the container body and in which the liquid is enclosed;
• a bag body disposed in the container body with the content which is enclosed therein;
• a pullout portion which is a part of the bag body and to be pulled out through the opening and closing section;
• and
• a rupture section formed on a part of the bag body to rupture the bag body, wherein
• after the liquid enclosed in the liquid enclosure member is diffused over the inside of the container body and outside of the bag body by rupturing the liquid enclosure member disposed in the container body with the opening and closing section of the container body being closed, the opening and closing section is opened, and the bag body is ruptured at the rupture section by pulling the pullout portion through the opening and closing section to impregnate the content with the liquid.