Test plan for sealing performance of test strip packaging

Nowadays, blood glucose test strip (paper), early pregnancy test strip (paper) and other products are widely used in the field of life and medical treatment Such products generally have higher requirements on packaging, because the sealing of test strip packaging or packaging bag directly affects the accuracy of the test strip after storage and use In order to prevent and reduce the risk brought to the user due to its poor sealing performance, Labthink blue light, as an international provider of testing instruments and testing services, combined with professional testing technology, briefly introduces the testing items and methods related to the sealing performance of test strip packaging, and understands the relevant testing technology by blood sugar, early pregnancy and other test strip related units I visual inspection of test strip packaging appearance, peel strength test of test strip packaging materials, thermal strength test strip packaging, sealing test strip packaging, barrier performance (permeability) test strip packaging 2、 Inspection method 1 Appearance inspection of test strip packaging: through manual visual inspection, it is required that the packaging appearance shall be intact, and the heat sealing part shall be free of blisters and wrinkles 2 Peel strength test of test strip packaging: peel strength test is also known as composite strength or 180 degree peel strength, which is an index to test the adhesive strength between layers of composite film (mainly aluminum foil plastic) used for test strip packaging If the peel strength is too low, it is easy to appear the phenomenon of interlayer separation in the use of packaging, resulting in sealing or leakage problems The test strip (test paper) packaging composite film is cut into 15mm wide samples with 15 × sampling knife, and then the samples are pre peeled manually, placed between the upper and lower clamps of XLW (m) intelligent electronic tensile testing machine, set the test speed of 300mm / min, and start the test During the test, it is also necessary to observe whether the peeling surface is uniform, which can be evaluated by the fluctuation amplitude of the test curve 3 The heat sealing strength of the test strip outer packaging is also called the heat sealing strength, which is the analysis index to evaluate the heat sealing strength of the test strip plastic packaging The length and width of the sample taken from the heat sealing part are 100mm and 15mm (ASTM and other standards also have the requirements of 25mm and 25.4mm) If the length is insufficient, the same material shall be spliced Place the sample between the upper and lower clamps of XLW (m) intelligent electronic tensile testing machine, set the test speed of 300 mm / min, start the test, and the specific test results vary according to different materials, but they shall not be less than 1.5 N / 15 mm 4 Test strip packaging sealing test the sealing performance of paper strip packaging refers to the reliability of packaging bag sealing Mfy-01 sealing tester is used, with a set pressure of - 60kpa and a test time of 60s (the specific time can be set) If the package leaks, continuous bubbles will be generated, so as to qualitatively evaluate the sealing performance of the package In addition, lssd-01 leakage and sealing strength tester can be used for quantitative analysis of rupture strength, rupture to creep and other indexes 5 Water vapor permeability test of test strip packaging this item is to evaluate the barrier performance test index of test strip packaging, which is very important for test strip packaging The shelf life of the product is analyzed by testing the gas and water vapor permeability of the test strip packaging During the detection, c330h water vapor transmittance tester and c230h oxygen transmittance test system can be used for detection The above is only a brief introduction to the test items and test methods of test strip packaging For more information about related instruments, you can visit the website of Jinan Languang company to check the specific information or call for consultation Labthink is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry.