Key words: mosquito liquid; leakage; sealing performance; sealer
Summer and early autumn are active seasons for mosquitoes. After mosquito bites, it is not only itching, but mosquito bites can spread diseases and have health risks. Mosquito repellent is a new type of anti-mosquito method that occurs after mosquito spray and mosquito coil. The main components are pyrethrin, solvent, stabilizer and flavor. Pyrethroid is the main active ingredient of mosquito-repellent incense, which can paralyze the nerves of mosquitoes and achieve the purpose of removing mosquitoes. However, it is less harmful to the human body and can be excreted with metabolism after entering the human body. Therefore, mosquito-repellent incense is deeply loved by people.
Figure 1 electric mosquito coil liquid sample
Test significance:
The mosquito-repellent liquid is generally used in combination with a heating sheet, that is, an electric mosquito repellent liquid, which can uniformly scatter the active ingredient of the mosquito repellent liquid in a space at a specific temperature, and can be continuously used for a long time, and a bottle of mosquito repellent can be used. 20 to 40 days, very convenient. At the same time, the electric mosquito liquid has also put forward higher requirements on its packaging design, material and packaging sealing. Among the common problems with mosquito-repellent liquids, leakage is one of the problems that Zui is prone to. During storage and transportation, mosquito liquids are inevitably inverted and bumped, causing leakage of packaging. Even the temperature and pressure changes from cities with low temperatures to cities with high temperatures or from plains to plateaus will lead to packaging seepage. The increase in leakage rate.
test instrument:
Labthink PARAM MFY-01 seal test instrument is specialized for food, pharmaceuticals, medical devices, chemical, automotive, electronic components, stationery and other industries bags, bottles, tubes, sealing test cans, boxes and other equipment, It is also possible to test the sealing performance of the test piece after the drop and pressure test. The instrument adopts digital preset test vacuum degree and vacuum holding time to ensure the accuracy of test data. Automatic constant pressure air supply is used to ensure that the test can be carried out under preset vacuum conditions; automatic feedback unloading and automatic end test are supported. Ensure that the test process goes smoothly.
The test principle of the instrument is that by vacuuming the vacuum chamber, the sample immersed in water is subjected to internal and external pressure difference, and the gas escape condition in the sample is observed to determine the sealing performance of the sample; by vacuuming the vacuum chamber, The sample is subjected to a pressure difference between the inside and the outside, and the shape of the sample is recovered after the sample is expanded and the vacuum is released, thereby determining the sealing performance of the sample. The instrument complies with national and international standards such as GB/T 15171 and ASTM D3078 .
Testing process:
The tank seal Tester MFY-01 into the amount of distilled water, the test sample is placed in water, covered with the sealing cap of the vacuum chamber, a large pressure value is provided zui -90 KPa, the vacuum pump starts pumping the vacuum chamber Vacuum, start the test, pay close attention to the condition of the sample, observe whether there is continuous bubble overflow or liquid leakage. If such a situation does not occur, keep it at the set pressure for 30 s and continue to observe. If no continuous bubbles are produced or no liquid overflows, the sample is well sealed.
Figure 2 MFY-01 seal tester
to sum up:
The sealing performance test of the mosquito-repellent liquid packaging can pre-control the leakage of the mosquito-repellent liquid. Use of Labthink MFY-01 seal test apparatus can detect mosquito liquid sealing performance of the package, the package quality can effectively visually determine the mosquito liquid. Mosquito repellent is only a typical representative of daily packaging containers. Other plastic packaging containers can be tested for sealing performance. Labthink has been committed to providing professional inspection services and equipment to customers around the world. Over the years, it has provided professional sealing performance testing services to customers around the world, providing customers with reliable. Welcome customers to log in to Jinan Languang Company to view detailed information or call us . Labthink is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry.
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