| abstract |
[1] A package comprising a resin composition comprising a polyester resin (A), a polyamide resin (B), and an oxidation reaction accelerator (C); the package body has a thickness of d (μm) When the average particle diameter of the dispersed particles of the polyamide resin (B) in the package is L (μm), the average value of the minor axis is W (μm), and the volume fraction is Vf, the following formula (1A) is satisfied. , after 100 hours after the preparation of the package, the oxygen permeability is 0.01 [cc/(package‧day‧0.21 atm)] and the haze value is 8% or less; 10<d×L×Vf/2W<120 ‧ ‧(1A); and [2] A method for preserving articles in which a package containing a polyester resin (A), a polyamide resin (B), and an oxidation reaction accelerator (C) is filled and stored Method; the content of the polyamide resin (B) in the package is 2.0 to 3.5% by mass, and the oxygen permeability of the package after 100 hours after the preparation of the package is X [cc/(package‧day‧ 0.21atm)], when the package capacity is V[L], and the package mass is M[g], the following formula (1B) is satisfied. X/{2.5×V2/(M-8)}<0.3 ‧‧‧(1B ). |