| 摘要 |
The present invention provides a packaging container in which the innertape can tightly seal an opening section provided on a top wall surface of the container from the under side, and also can easily and sharply be broken at a position near an edge portion of the opening section when the pull-tab is pealed off in association with an operation for unsealing the opening section, a method of producing the innertape for the packaging containers, and an innertape for the containers. The packaging container has an opening section for a fluid food provided at a top thereof with the opening section covered with a pull tab from above, and has an innertape used for tightly sealing the opening section from the under side by sealing an under surface of the opening section along an outer circumference thereof and an inner surface of the pull tub, and the innertape has a linear low density polyethylene outer layer with the layer thickness in the range from 3 to 7 microns; a low density polyethylene intermediate layer with the layer thickness in the range from 7 to 15 microns; an adhesive layer with the layer thickness in the range from 3 to 6 microns; an ethylene vinyl alcohol copolymer barrier layer with the ethylene content in the range from 40 to 44 moles and also with the layer thickness in the range from 4 to 7 microns; an adhesive layer with the layer thickness in the range from 3 to 6 microns; a low density polyethylene intermediate layer with the layer thickness in the range from 7 to 15 microns; and a linear low density polyethylene outer layer with the layer thickness in the range from 3 to 7 microns. |
