How to test the sealing performance of tablet plastic bottle packaging What equipment is used

Tablet plastic bottles are widely used in the packaging of oral solid drugs and oral liquid drugs because of their light weight, high strength, not easy to break, good sealing performance, moisture-proof, hygienic, in line with the special requirements of drug packaging and can be directly used in drug packaging without cleaning and drying. In order to prevent the influence of light, heat, oxygen, etc. on the drug, and ensure that the drug is not damp and does not deteriorate within the validity period, the tablet plastic bottle should have a good seal. The relevant national standards have made clear provisions on this, which is also the key indicator of each production enterprise.

Next, Jinan Mingwei testing technology **** combined with MFY-01 seal tester to briefly introduce the sealing performance test of tablet plastic bottles. Sealing performance refers to the reliability of the seal of the tablet plastic bottle, and the integrity of the seal of the entire product package can be ensured through this test. In order to ensure that the drug is not damp and does not deteriorate within the validity period, the tablet plastic bottle should have a good seal, and the relevant national standards have made clear provisions on this

Take a certain number of tablet plastic bottles, fill each bottle with an appropriate amount of glass balls, and tighten the cap (see the table below for torque). Cap diameter (mm) Torque (n·cm) 15 22 59 78 23 48 98 118 49 70 147 176 Then put it into a container with an air extraction device, immerse it in water, vacuum it to a vacuum level of 27kpa, and maintain it for 2 minutes, and there should be no water or bubbles in the bottle. The MFY-01 tightness tester of Jinan Mingwei Testing Technology **** (0531-88808020) uses the vacuum principle to vacuum the vacuum chamber to produce the internal and external pressure difference between the sample immersed in water, and observe the gas escape in the test sample to determine the sealing performance of the sample

Or by vacuuming the vacuum chamber, the internal and external pressure difference of the sample is generated, and the shape of the sample is restored after the expansion of the sample and the release of the vacuum, so as to determine the sealing performance of the sample. During the experiment, only the corresponding pressure value and time need to be entered, and the instrument can realize the fully automatic test, which is convenient to operate and friendly to human-computer interaction. Wish.

Now there is a sealing detection equipment based on the principle of thermal imaging, which can detect the sealing quality problems caused by non-contact detection without aluminum foil, aluminum foil damage, and excessive heat of the sealing machine 1315 or not enough 3216.

1. Check the appearance of the plastic packaging bag. Intuitively check whether the plastic packaging bag has obvious scratches, whether there are pinholes, whether there is printing contamination, and whether the sealing place is firmly bonded.

2. Check whether there are any holes and pinholes in the plastic bag. The process is to add the colored bag surface active agent to the plastic packaging bag, square the bag body to the filter paper, observe whether the filter paper is polluted by color solution after 5-10 minutes, and then turn the bag body over for detection.

3. Test durability. The durability test is generally tested by the bag drop method, and the plastic packaging bag is placed at a certain height for the drop test, which is determined by the size and weight of the bag.

4. Sealing strength inspection. The sealing of a plastic packaging bag is the key to whether the plastic bag is qualified or not. It is also the key to whether the quality of plastic bags is excellent.

To check the strength of the seal, it is generally to check the contents of the plastic packaging bag. Or use a flat ruler to squeeze and slide the seal. See if the seal will tear the sail.

5. The compressive resistance of plastic packaging bags. You can test it with a heavy object extrusion method, put the plastic packaging bag on the table, and add a heavy object for extrusion. Those that last for 3-10 minutes without damage are qualified products.

When many friends use plastic packaging bags, they often take the bridge and use it, and do not check the quality of the bag at all, so that once we encounter the quality of the product, it will add trouble to us anyway. Therefore, before use, it is necessary to check whether the packaging bag is qualified according to the above methods! More ways to pay attention to Shaanxi Tianyan packaging.

Try pressing the bag to see if there is any air leakage.