| 摘要 |
PROBLEM TO BE SOLVED: To provide a water conditioning method and conditioned water which effectively prevent the environmental stress cracking of a polyester container owing to the adhesion of the water to be used for warming, cooling or washing the content-packed polyester container. SOLUTION: This water conditioning method is applied to the water to be used for warming, cooling or washing the content-packed polyester container. A strong acid is added to the unconditioned water so that the water just before dried/solidified has≥9pH. COPYRIGHT: (C)2004,JPO&NCIPI
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