| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a needle piercing detent plug by which a liquid in a container does not leak even after a needle is pierced and pulled out even when a thermoplastic synthetic resin elastic body wherein the elastic force is smaller, compared with rubber, is used at a needle piercing section by thermally fusing the needle piercing section for which the raw material, the hardness and the thickness are specified, and a detent plug main body, at a thermal fusing section. SOLUTION: For a chemical container 1 for drip, the lower end of a connecting tube 4 is connected to an opening 3 which is formed on the upper part of a container 2 made of a transparent synthetic resin, and also, a needle piercing detent plug 5 is connected to the upper end of the connecting tube 4. The needle piercing detent plug 5 is formed of a detent plug main body 10, a needle piercing section 11, and films 12 and 13 for airtightness for both of the outside and the inside. In this case, the needle piercing section 11 is one kind or more of thermoplastic synthetic resin elastic bodies being selected from styrene based on olefin based elastomers, and the hardness is set at 20-80 by A hardness of JIS, and the thickness is set at 2-8 mm. Also, the detent plug main body 10 has a higher rigidity than the material of the needle piercing section 11, and is formed of the thermoplastic synthetic resin having an outer peripheral section which partitions the needle piercing section 11.</p> |
