Abstract: The aim is to provide a paper container for liquid that has a strength to prevent breakage or leakage due to a shock in a long-distance transportation and also has no problems in opening the container when used. This invention is a paper container for liquid which comprises a laminated body which comprises a paper as base material thereof and a heat-sealant layer which is placed inner side of the container than the paper and which comprises a reinforcement layer and a liquid-contacting layer which is the side of contacting the liquid, wherein the reinforcement layer is a layer made of linear low-density polyethylene and the liquid-contacting layer is a layer made of low-density polyethylene and thickness ratio of the reinforcement layer and the liquid-contacting layer (thickness of reinforcement layer 5/thickness of liquid-contacting layer 6) that form the heat-sealant layer is in the range of 0.2-5. Moreover, it is characterized in that the density of the linear low-density polyethylene is in a range of 0.

Abstract: A frozen culture packaged body configured so that it does not deform or burst even if the content and gas in the container inflate due to a temperature difference between before and after forming a frozen culture within the body, wherein the frozen culture packaged body is capable of performing hygienic administration of the content within, and wherein the frozen culture packaged body has a vent port covered with a filter material having microbial impermeability and air permeability is formed at least in a portion of the container.

Abstract: the aimed is to provide a paper container for liquid that has a strength to prevent breakage or leakage due to a shock in a long-distance transportation and also has no problems in opening the container when used. This invention is a paper container for liquid which comprises a laminated body which comprises a paper as base material thereof and a heat-sealant layer which is placed inner side of the container than the paper and which comprises a reinforcement layer and a liquid-contacting layer which is the side of contacting the liquid, wherein the reinforcement layer is a layer made of linear low-density polyethylene and the liquid-contacting layer is a layer made of low-density polyethylene and thickness ratio of the reinforcement layer and the liquid-contacting layer (thickness of reinforcement layer 5/thickness of liquid-contacting layer 6) that form the heat-sealant layer is in the range of 0.2-5. Moreover, it is characterized in that the density of the linear low-density polyethylene is in a range of 0.

Abstract: [Problems]To provide a container not deformed nor burst even if its content and gas in the container inflate due to a temperature difference between before and after forming a frozen material packaging body and also capable of performing hygienic administration of the content. [Means for Solving Problems]A vent port covered with a filter material having microbial impermeability and air permeability is formed at least in a portion of the container.