Introduction of sealing performance test method for water-repellent plastic bottles
Abstract: In order to prevent the influence of light, heat, oxygen and other factors on the drug, to ensure that the drug is not affected by moisture and quality during the effective period, the plastic bottle of the water-repellent agent should have good sealing performance . Relevant national standards have clearly defined this, which is also an important indicator of each production enterprise.
Key words: water-repellent plastic bottle sealing performance test, sealing, water-repellent plastic bottle, sealing tester
text:
Water-repellent plastic bottles are widely used because of their light weight, high strength, not easy to break, good sealing performance, moisture-proof and hygienic, meet the special requirements of pharmaceutical packaging, and can be directly used for pharmaceutical packaging without cleaning or drying. Packaging for oral solid medicines and oral liquid medicines. In order to prevent the influence of light, heat, oxygen and other drugs on the drug, and to ensure that the drug is not affected by moisture and deterioration during the effective period, the plastic bottle of the water-repellent agent should have a good sealing property . Relevant national standards have clearly defined this, which is also an important indicator of each production enterprise. Next, Labthink combines with the MFY-01 seal tester to provide a brief introduction to the sealing performance test of the water-repellent plastic bottle.
Sealing performance refers to the reliability of the water-repellent plastic bottle seal, which ensures the integrity of the entire product package seal. In order to ensure that the drug is not damp and does not deteriorate during the validity period, the plastic bottle of the water-repellent agent should have a good sealing property. The relevant national standards have clearly defined this: take a certain amount of water-repellent plastic bottles, each bottle Put a proper amount of glass ball inside and tighten the cap (see below for torque).
Cover diameter ( mm ) | Torque ( N · cm ) |
15~22 | 59~78 |
23~48 | 98~118 |
49~70 | 147~176 |
Then, place it in a container with a suction device, immerse it in water, and evacuate it to a vacuum of 27 kPa for 2 minutes. There must be no water or bubbles in the bottle. Labthink's MFY-01 seal tester uses vacuum principle to create a pressure difference between the sample and the sample immersed in water by vacuuming the vacuum chamber to observe the gas escape in the sample to determine the sealing performance of the sample. : By vacuuming the vacuum chamber, the sample is subjected to internal and external pressure difference, and the shape of the sample is recovered after the sample is expanded and the vacuum is released to determine the sealing performance of the sample. The experiment process only needs to input the corresponding pressure value and time, and the instrument can realize fully automatic test, convenient operation and friendly human-computer interaction. The above method is based on the principle of visual inspection. It is a qualitative test method. If you want to quantitatively test the sealing and leakage performance of the package, you can use the positive pressure method to seal the performance test equipment, such as Labthink LSSD-01 leakage and Seal strength tester.
Of course, after ensuring that the sealing index of the water-repellent plastic bottle is qualified, it is necessary to control other indicators such as oxygen barrier and moisture resistance to ensure the quality of the product during the shelf life. For more information about related instruments, you can visit Languang for specific information. Jinan Languang Electromechanical Technology Co., Ltd. is willing to enhance exchanges and cooperation with enterprises and institutions in the industry.
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Henan Anbang Medical Supplies Co., Ltd. , https://www.anbangmedical.com