To provide an ecological packaging material which is used for a bathing agent, medical supplies such as an endermatic absorption medicine, or toiletries, controls the adsorption of a medically effective component of the contents or perfume on the packaging material by forming the heat seal layer of the innermost layer from a thin film of a heat sealing agent having content resistance, is resistant to degradation such as delamination, and does not use aluminum foil.
In a laminated film, a substrate, a gas-barrier layer, and a heat seal layer are laminated in turn. The gas-barrier layer is a vapor deposition layer of aluminum, alumina, silica, or the like or a saponified ethylene-vinyl acetate copolymer layer, and the heat seal layer is formed from an acrylic resin.
| JPH10196038 | DECORATIVE LAMINATED SHEET |
| JP2010042619 | HEAT-SHRINKABLE LAMINATED FILM ROLL |
| WO/2013/171124 | MULTI-LAYER FILM WITH IMPROVED MODULUS PROPERTIES |
UEHA ISAZUMI
MINAMIGUCHI NAOSHI
