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    Home > Active Ingredient News > Drugs Articles > Detection method of leak resistance of refill

    Detection method of leak resistance of refill

    • Last Update: 2019-09-16
    • Source: Internet
    • Author: User
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    Abstract: refill is an essential tool in daily life and business activities Ink leakage of ballpoint pen and refill is often found in application Once the ink leaks, it will not only affect its normal use, but also contaminate clothes The leakage resistance of refill is an important index of refill quality Key words: refill, leakage, refill leakage, sealing tester, negative pressure sealer refill are essential tools in life and business activities Ink leakage of ballpoint pen and refill is often found in application Once leakage occurs, it will not only affect its normal use, but also contaminate clothes So how can manufacturers ensure that water-based ballpoint pens and refills have good leakproofness? The national standard QB / T 1655-2006 specifies the leak resistance test method and inspection rules of water-based ballpoint pen and refill Labthink blue light, as a provider of testing instruments and inspection services, now introduces the relevant standards and testing methods in combination with the instruments The specific contents are as follows: 1 The refill leak resistance test instrument is in accordance with QB / T 1655-2006 According to the standard of water-based ballpoint pen and refill, the name of testing instrument is decompression instrument In this paper, the mfy-01 sealing tester of Labthink blue light is introduced as an example The sealing tester uses decompression principle (also known as negative pressure principle) to test the leakproofness of water-based ballpoint pen and refill, and the instrument is widely used in stationery enterprises 2、 Test method and step 1 Adjust the pressure reducing speed of mfy-01 sealing tester (pressure reducer) to 10-12kpa / min 2 Use the pen with 1 / 2 ink capacity in the ink storage container as the test pen (sample) 3 remove the test pen sleeve, insert the test pen head vertically downward into the pen holder, place it in the vacuum tank of the sealed tester (pressure reducer), and then cover the upper cover of the vacuum tank 4 Open the compressed air source, and set the test vacuum degree (as per table 2 in QB / T 1655-2006) and vacuum holding time (10min as per the standard) When setting the vacuum degree, be sure to pay attention to the difference between the vacuum degree setting value of the water storage core type pen core and the direct liquid type pen core 5 Start the test When the vacuum degree reaches the preset value, mfy-01 sealing tester will automatically maintain the vacuum degree according to the preset procedure The test pen shall not leak ink The above is a brief introduction to the water-based ballpoint pen and refill leak resistance testing methods and pressure reducer Labthink Languang hopes to have a comprehensive exchange with the industry on more quality control and testing projects and methods Labthink is committed to helping customers to deal with packaging problems and help the quality and safety of packaging related industries through the improvement of packaging testing technology and the development of testing instruments For more information about related testing instruments, you can visit the website of Jinan Languang company for specific information or call for consultation Labthink is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry.
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