Barrier laminate, lid material, and packaging container

A packaging container comprising a barrier laminate, wherein

• the barrier laminate comprises:
• a first substrate;
• a second substrate;
• and
• a sealant layer in this order in a thickness direction,
• one of the first substrate and the second substrate is a barrier substrate including a polypropylene resin layer and an evaporated film, and the other of the first substrate and the second substrate is a polypropylene resin substrate,
• the barrier substrate includes a surface resin layer between the polypropylene resin layer and the evaporated film,
• the barrier substrate includes an adhesive resin layer between the polypropylene resin layer and the surface resin layer,
• the polypropylene resin layer is a layer subjected to a stretching process,
• the evaporated film is composed of an inorganic oxide,
• the polypropylene resin substrate is a substrate subjected to a stretching process, and
• the barrier laminate after heat treatment at 120° C. for 15 minutes has a thermal shrinkage ratio (MD1) of 2.00% or less in an MD direction and a thermal shrinkage ratio (TD1) of 2.00% or less in a TD direction.

A lid material comprising a barrier laminate, wherein

• the barrier laminate comprises:
• a first substrate;
• a second substrate;
• and
• a sealant layer in this order in a thickness direction,
• one of the first substrate and the second substrate is a barrier substrate including a polypropylene resin layer and an evaporated film, and the other of the first substrate and the second substrate is a polypropylene resin substrate,
• the barrier substrate includes a surface resin layer between the polypropylene resin layer and the evaporated film,
• the barrier substrate includes an adhesive resin layer between the polypropylene resin layer and the surface resin layer,
• the polypropylene resin layer is a layer subjected to a stretching process,
• the evaporated film is composed of an inorganic oxide,
• the polypropylene resin substrate is a substrate subjected to a stretching process, and
• the barrier laminate after heat treatment at 120° C. for 15 minutes has a thermal shrinkage ratio (MD1) of 2.00% or less in an MD direction and a thermal shrinkage ratio (TD1) of 2.00% or less in a TD direction.

A packaging container comprising:

• a container main body with a storage portion;
• and
• the lid material bonded to the container main body to seal the storage portion, wherein
• the lid material comprises a barrier laminate,
• the barrier laminate comprises:
• a first substrate;
• a second substrate;
• and
• a sealant layer in this order in a thickness direction,
• one of the first substrate and the second substrate is a barrier substrate including a polypropylene resin layer and an evaporated film, and the other of the first substrate and the second substrate is a polypropylene resin substrate,
• the barrier substrate includes a surface resin layer between the polypropylene resin layer and the evaporated film,
• the barrier substrate includes an adhesive resin layer between the polypropylene resin layer and the surface resin layer,
• the polypropylene resin layer is a layer subjected to a stretching process,
• the evaporated film is composed of an inorganic oxide,
• the polypropylene resin substrate is a substrate subjected to a stretching process, and
• the barrier laminate after heat treatment at 120° C. for 15 minutes has a thermal shrinkage ratio (MD1) of 2.00% or less in an MD direction and a thermal shrinkage ratio (TD1) of 2.00% or less in a TD direction.