| abstract |
The present invention provides a sealant film, which is not easy to absorb components composed of various organic compounds, and has excellent heat sealability at 140°C. On the other hand, it has low heat seal strength at 100°C. It is used as a packaging bag and the contents are used with hot water When boiling and want to heat up, the heat-sealing layers are not easy to stick to each other.nThe low-adsorption sealant film of the present invention is characterized by having at least one heat-sealing layer composed of polyester-based components, and satisfies the following (1) to (3): (1) The heat-sealing layers are separated by 100 The sealing strength when sealing at ℃, 0.2MPa and 2 seconds is 0N/15mm or more and 5N/15mm or less; (2) The sealing strength when sealing the heat-sealing layers at 140℃, 0.2MPa and 2 seconds is 8N/15mm or more And 30N/15mm or less; (3) The density of the film including all layers is 1.20 or more and less than 1.39. |