| 摘要 |
The present invention provides a packaging material for adhesive patches, wherein: the packaging material comprises an inner-layer film made of a heat-sealable polyethylene terephthalate-based resin, and a base film; and a heat-sealable surface of said inner-layer film is made of an isophthalic acid-modified polyethylene terephthalate resin in which the copolymerization rate of the isophthalic acid component is from 10 mol% to 20 mol%. More preferably, said inner-layer film made of a heat-sealable polyethylene terephthalate-based resin is a multi-layer film including at least the following two layers: a heat-sealable-surface-side layer made of an isophthalic acid-modified polyethylene terephthalate resin in which the copolymerization rate of the isophthalic acid component is from 10 mol% to 20 mol%; and a layer made of an isophthalic acid-modified polyethylene terephthalate resin in which the copolymerization rate of the isophthalic acid component is from 0 mol% to 5 mol%. |
