| 摘要 |
PROBLEM TO BE SOLVED: To sterilize the inside of a bottle.SOLUTION: In a blow molding method of stretch blow molding a preform into a bottle B by inserting a preform heated to a proper molding temperature into a space enclosed by a mold 12, and then airtightly sealing the vicinity of a mouth part of preform with a seal member 5S to airtightly seal the inside of the preform, and while pushing in a stretch rod 4 toward an inner bottom part of the preform, blowing a blow molding gas from a hollow hole of the stretch rod 4, the blow molding gas inside the stretch blow molded bottle B is once brought into a state of the atmospheric pressure at the time of or immediately after completion of the stretch blow molding, and gas G or mist containing a disinfectant switched from the blow molding gas is blown into the inside of the bottle B. |
