PROBLEM TO BE SOLVED: To provide a means which can reduce the elution value of alkali components defined in ISO4802 or the like as much as possible in a glass vessel used for the preservation of medicines.SOLUTION: The method comprises: a vessel forming stage where a glass tube 60 is worked into the shape of a vessel having a bottom part 53 and a mouth part 51 so as to form a vial 50 and a fire blast stage where, while jetting the flame 20 of a point burner 10 to the inside space 52 of the vial 50 and applying the flame 20 to the inside face 54, the flame 20 is scanned to the whole of the inside face 54 of the vial 50.COPYRIGHT: (C)2011,JPO&INPIT【課題】医薬品の保存などに用いられるガラス容器において、ISO4802等で定められるアルカリ成分の溶出値を可能な限り減少させる手段を提供する。【解決手段】底部53と口部51とを有する容器形状にガラス管60を加工してバイアル50とする容器成形工程と、バイアル50の内部空間52へポイントバーナー10の炎20を噴出させて炎20を内面54に当てながら、炎20をバイアル50の内面54全体に走査させるファイアブラスト工程と、を含む。【選択図】図4
