PACKAGING BODY AND STORAGE METHOD

摘要

Provided are [1] a packaging body consisting of a resin composition containing a polyester resin (A), a polyamide resin (B), and an oxidation reaction accelerator (C), wherein when a thickness of the packaging body is defined as d (µm), and an average long diameter, an average short diameter, and a volume fraction of dispersed particles of the polyamide resin (B) in the packaging body are defined as L (µm), W (µm), and Vf, respectively, the following expression (1A) is satisfied; an oxygen transmission rate after a lapse of 100 hours after preparing of the packaging body is 0.01 [cc/(package · day · 0.21 atm)] or less; and a haze value is 8% or less, and [2] a method for preserving goods by filling in a packaging body containing a polyester resin (A), a polyamide resin (B), and an oxidation reaction accelerator (C), wherein a content of the polyamide resin (B) in the packaging body is 2.0 to 3.5% by mass, and when an oxygen transmission rate of the packaging body after a lapse of 100 hours after preparing of the packaging body is defined as X [cc/(package · day · 0.21 atm)], a volume of the packaging body is defined as V [L], and a mass of the packaging body is defined as M [g], the following expression (1B) is satisfied. 10 < d × L × Vf / 2 W < 120 X / 2.5 × V 2 / M ˆ’ 8 < 0.3