Tablet plastic bottles are widely used in the packaging of oral solid medicines and oral liquid medicines due to their advantages of light weight, high strength, unbreakable, good sealing performance, moisture-proof, hygienic, in line with the special requirements of drug packaging and can be used directly for drug packaging without washing and drying. In order to prevent light, heat, oxygen and other effects on the drugs, to ensure that the drugs in the validity of not moisture, not deteriorate, tablets plastic bottles should have a very good sealing. Relevant national standards have made clear provisions for this, which is also the key concern of the production enterprises. Jinan Mingwei Testing Technology Co., Ltd. will briefly introduce the sealing performance test of tablet plastic bottles with MFY-01 sealing tester. The sealing performance refers to the reliability of the sealing of tablet plastic bottles, and the test can ensure the integrity of the sealing of the entire product packaging. In order to ensure that the drugs in the validity of the period of no moisture, no deterioration, tablets plastic bottles should have a very good sealing, the relevant national standards have made clear provisions: take a certain number of tablets plastic bottles, each bottle is filled with an appropriate amount of glass ball, tighten the cap (see the table below for the torque). Diameter of cap(mm) Torque(N-cm) 15~22 59~78 23~48 98~118 49~70 147~176 Then put it into the container with pumping device, submerge it with water, vacuum it to the vacuum degree of 27kpa, maintain it for 2 minutes, there shall not be any water or bubbling phenomenon in the bottle. Jinan Mingwei Inspection Technology Co., Ltd (0531-88808020) of the MFY-01 sealing tester, the use of the vacuum principle, through the vacuum chamber vacuum, so that the specimen immersed in water to generate the internal and external pressure difference, the observation of the specimen within the escape of the gas, in order to determine the specimen's sealing performance: or vacuum chamber vacuum, so that the specimen to generate the pressure difference between the internal and external pressure, the observation of the specimen after the release of the vacuum and expansion of the specimen shape recovery in order to determine the specimen's sealing performance. Or by vacuuming the vacuum chamber, make the specimen generate pressure difference between inside and outside, observe the expansion of the specimen and the recovery of the specimen shape after releasing the vacuum to determine the sealing performance of the specimen. The instrument can realize fully automatic test by inputting the corresponding pressure value and time, which is convenient for operation and friendly for human-machine interaction.
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