Summary: During the use and circulation of the packaging bag, it is often subjected to the puncture effect from the sharp part of the contents, the granular component or the foreign matter in the package. If the puncture resistance of the packaging bag is poor, it is easy to break the bag under the puncture of the external force. This article takes the plastic packaging film bag of scorpion as an example, and adopts the research and development independently developed by Jinan Languang Electromechanical Technology Co., Ltd. XLW (PC) The intelligent electronic tensile testing machine tests the puncture resistance of the plastic composite film packaging of the tweezers, and introduces the principle of the testing, the equipment parameters, the scope of application and the test procedures, which can provide reference for monitoring the puncture performance of the packaging bags in the industry. Key words: Plastic composite film, puncture resistance, puncture resistance, puncture strength, tweezers, intelligent electronic tensile testing machine 1 ,significance Puncture resistance is a guiding indicator for evaluating the ability of food packaging to resist the penetration of sharp hard objects. After the package is used to package the contents, if the content contains sharp and hard substances, such as food corners, bones, wooden sticks, etc., these ingredients will be produced in the package during long-term contact with the package. Strong puncture; in addition, during the storage, transportation and circulation of the package, it is inevitable to be puncture and impact from objects outside the package, such as the sharp corners of other bags. If the puncture resistance of the bag is poor, under the puncture of the above object, it is easy to form small holes which are not noticeable on the surface of the package, resulting in leakage, leakage, and even large-area broken bags. This is also the reason why tweezers packaging should have high puncture resistance. Scorpion is also known as " Horn †, " Tube †It is a traditional festival food of the Han nationality of the Dragon Boat Festival. It is steamed from the leaves of the Han nationality. It is the traditional food with the deepest cultural heritage in Chinese history and is deeply loved. The scorpion is mostly in the form of vacuum packaging. The sharp edges and corners of the scorpion will produce a certain puncture force on the package. If the puncture resistance of the package is poor, it may cause pinholes and broken bags in the package, causing mold and deterioration of the scorpion. 1 Hazelnut plastic composite film packaging 2 Execution standard The domestic test method for the puncture resistance of soft plastic packaging is mainly based on GB/T 10004-2008 "Plastic composite film for packaging, bag dry compounding, extrusion compounding". 3 Test sample Plastic composite film tweezers packaged by a food factory. 4 Test equipment Jinan Languang Electromechanical Technology Co., Ltd. independently developed and designed XLW (PC) Intelligent electronic tensile testing machine. 2XLW (PC) Intelligent electronic tensile testing machine 4.1 Test principle The sample is fixed on the fixture, and the puncture needle attached to the movable chuck punctures the sample, and the force value sensor and the displacement sensor located on the movable chuck are used to test and record the change of the force value during the puncture. 4.2 Scope of application (1) The device can be used for testing the puncture resistance, tensile properties, tensile strength, tensile strength and deformation rate, tear resistance, peel strength performance, heat seal strength performance of plastic film, composite film, sheet and other materials. Can be used for infusion bag cover, soft rubber stopper, oral liquid cap puncture / Pulling force test; can be used for tape unwinding force, plastic bottle anti-pressure, combination cover and jelly cup, yogurt cup cover film opening force and other product and packaging performance test. (2) This device can be satisfied ISO 37 , GB 8808 , GB/T 1040.1 , GB/T 1040.2 , GB/T 1040.3 , GB/T 1040.4 , GB/T 1040.5 , GB/T 4850 , GB/T 12914 , GB/T 17200 , GB/T 16578.1 , GB/T 7122 , GB/T 2790 , GB/T2791 , GB/T 2792 , GB/T 17590 , ASTM E4 , ASTM D882 , ASTM D1938 , ASTM D3330 , ASTM F88 , ASTM F904 , JIS P8113 , QB/T 2358 , QB/T 1130 And other relevant standards at home and abroad. 4.3 Device parameters l 500 N , 50 N Two sizes of force sensors are available. l According to the relevant standards, the equipment provides 50 mm/min , 100 mm/min , 150 mm/min , 200 mm/min , 250 mm/min , 300 mm/min , 500 mm/min Seven test speeds can be set freely according to test standards. l 1000 mm The ultra long stroke can meet the test of large deformation rate materials. l Intelligent configuration such as limit protection, overload protection, automatic return and power-down memory to ensure the user's operation safety. l A test machine integrates seven independent test procedures, such as stretching, peeling and tearing, to provide users with a choice of test items. l stand by Lystem TM Laboratory data sharing system, unified management test results and test reports 5 ,Experimental procedure (1) Use a sampler to cut the diameter of the plastic composite film packaging bag for the tweezers 100 mm Sample 5 sheet. (2) The sample is clamped to a special jig for the puncture test, and the jig is fixed on the test equipment. (3) Set test parameters such as test speed and sample thickness. (4) Click the Start Test option and the experiment begins. The device automatically calculates and displays the final test results. 6 ,test results The puncture resistance of the sample of the plastic composite film bag for the tweezers tested in this paper respectively 11.51 N , 12.43 N , 11.09 N , 11.28 N , 11.02 N . 7 ,in conclusion XLW (PC) The intelligent electronic tensile testing machine is a professional test for puncture resistance and tensile strength of plastic flexible packaging, which truly reflects the puncture resistance of test samples. The equipment is easy to operate and has high test accuracy. Labthink Languang has been committed to providing professional equipment and testing services to customers around the world, providing customers with a large number of packaging material performance data reference. FUME EXTRA 1500PUFFS Shenzhen Xcool Vapor Technology Co.,Ltd , https://www.szxcoolvape.com
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