I base 2 nm barrier coating
[0020] 3 thermal paper
[0021] 3IHC film 32PET film
[0022] 33 34PSA insulation layer
[0023] 4 thermal paper
[0024] 4IHC film 42PET film
[0025] 43 44PSA insulation layer
[0026] The protective layer 45 46PSA layer
DETAILED DESCRIPTION.