| 摘要 |
PROBLEM TO BE SOLVED: To provide an HDPE resin container having excellent surface glossiness, high rigidity and low water vapor permeability without, in particular, blending a synthetic resin of another kind or laminating another layer in biaxial stretch blow molding using an HDPE resin.SOLUTION: In an biaxial stretch blow molding method for an HDPE resin container, a blow molding mold in which a cavity surface is mirror-finished is used and a temperature of the mold (Tmold) is set to be within a range expressed in the following formula (1): Tc-10°C≤Tmold≤Tc+10°C. In the formula (1), Tc is a crystallization temperature at temperature fall time of the HDPE resin used, and is a temperature at a peak position on a heat generation curve with crystallization in temperature falling crystallization measurement of 10°C/min by a differential scanning calorimeter. |
