Abstract
This paper is described on comparison several outer packaging mate1ials for cold reservation of fruits and vegetables. Insulation，heat resistance and cool-storage properties of several insulating packaging materials such as expanded polystyrene (EP 50 ; magnifications, thickness 16.6mm), EPS／Fiberboard, Corrugated boards (A, AB flute) and Corrugated boards (A, AB)／12μPET／700μ metalized AL were measured by cold insulation container testing equipment. It is known that cool-storage properties are not only depended on heat conductance and thickness of insulating materials but also surface heat conductivity. Effects of coolants to cool storage properties in insulating packaging became relativity smaller because the head space temperature in box is early increase in the case of low heat insulation package and as a result, there were no difference in some kind coolant.
