How the effervescent tube control moisture-proof function

As the main packaging form of vitamin C effervescent tablets, the moisture-proof function of effervescent tubes is a point that pharmaceutical companies pay great attention to when choosing pharmaceutcial packaging. So, how can this kind of packaging control its moisture-proof function?

144mm effervescent tube packaging

The moisture-proof function of packaging is mainly controlled in two aspects, one is to block the invasion of external water molecules, and the other is to maintain the stability of the internal environment of the packaging. Judging from the material of the body of the effervescent tube, polypropylene is the main raw material. This raw material itself has good barrier properties, which can block the invasion of external water molecules and exert the moisture-proof function of the outside of the packaging.

The packaging or tablet itself will carry a certain amount of water molecules during the manufacturing process, so the internal moisture protection is also important. From the internal structure of the package, the lid of the effervescent tube is composed of a bottle cap skeleton, cardboard, coil spring, anti-theft ring and desiccant. The desiccant is stored in a small medicine warehouse, which is composed of an equal proportion mixture of silica gel and molecular sieve. It can absorb the internal water molecules and maintain the stability of the internal environment, thereby ensuring the stability of vitamin C effervescent tablets within the validity period.

Therefore, the moisture-proof function of the effervescent tube is mainly performed in two aspects: external moisture-proof and internal moisture-proof. The raw material assumes the function of external moisture-proof, and the internal desiccant plays the important role of internal moisture-proof. The moisture-proof function of the packaging can be well played.