Test method and operation procedure of hot sealing strength of chicken claw packaging

Abstract: the sealing fastness of sealing, also known as heat sealing strength, heat sealing strength, sealing strength, etc., indicates the combination fastness of the heat sealing layer of packaging Heat sealing strength is an important performance index reflecting the quality of packaging bags In this paper, taking the phoenix claw packaging bag as an example, the XLW (EC) intelligent electronic tensile testing machine independently developed by Jinan Languang Electromechanical Technology Co., Ltd is used to test the heat sealing strength of the phoenix claw packaging bag The equipment parameters, application scope and other information are briefly introduced, and the test process is summarized, which has certain guiding significance in monitoring the heat sealing strength of the packaging bag Key words: sealing fastness, heat sealing strength, heat sealing strength, sealing strength, chicken claw, meat products, soft plastic packaging bag, intelligent tensile testing machine, sealing broken bag 1, significance In the packaging process of meat products, by heat sealing the hot edge of the packaging bag, the packaging bag can form a closed environment, thus protecting the contents, isolating the oxygen and water vapor in the external environment, and preventing the leakage of the packaging bag and the contents The sealing effect of the heat sealing edge of the packaging bag, that is, the heat sealing strength (or heat sealing strength, sealing strength) is an important factor affecting the protection function of the packaging bag This paper introduces the analysis method of heat sealing strength of the packaging bag of chicken claw Phoenix claw is a kind of common meat product, also known as chicken claw and Phoenix foot It is rich in glutamic acid, collagen and calcium It can not only soften blood vessels, but also has the effect of beauty It is a popular food among consumers The rich nutrition of chicken claw requires that its packaging should have good heat sealing strength In the process of heat sealing, the improper setting of heat sealing temperature, pressure, time and other parameters often results in quality problems of packaging bags, such as poor sealing at the heat sealing position, low heat sealing strength, easy air leakage and even opening at the heat sealing position of packaging; or excessive sealing at the heat sealing position, when there is When falling or being squeezed by external force, the package is easy to break at the sealing place Therefore, to control the appropriate heat sealing strength is an important condition to ensure the good quality of chicken claw within the shelf life 2 At present, most of the common packaging of chicken claw in the market are soft plastic packaging such as plastic composite film or aluminum plastic composite film, and most of them are vacuum packaging with four sides sealed According to the test of the heat sealing strength of this type of packaging bag, the commonly used standard in China is QB / t2358-98 test method for heat sealing strength of plastic film packaging bag Fig 1 packaging form of common chicken claws on the market 3 Packaging chicken claws of a brand of plastic composite film purchased randomly on the test sample market 4 In this paper, Labthink XLW (EC) intelligent electronic tensile testing machine is used to test the heat sealing strength of chicken claw packaging bag Figure 2 application scope of XLW (EC) intelligent electronic tensile tester 4.1 (1) XLW (EC) Intelligent electronic tensile testing machine is suitable for stretching, peeling, deformation, tearing, heat sealing, adhesion, puncture force, opening force and tearing of plastic film, composite material, soft packaging material, plastic hose, adhesive, adhesive tape, adhesive, medical paste, release paper, protective film, combination cover, metal foil, diaphragm, back plate material, non-woven fabric, rubber, paper and other products Force, low speed unwinding force, peeling force, drawing force and other performance tests (2) XLW (EC) intelligent electronic tensile testing machine conforms to nearly 30 domestic and foreign standards, such as gb8808-1988, GB / t1040.1-2006 ~ GB / t1040.4-2006, GB / t1040.5-2008, GB / t4850-2002, GB / t12914-2008, GB / t2790 ~ GB / t2792, QB / t2358, iso37, ASTM d3330, ASTM F904, etc 4.2 there are two specifications for performance parameters: 500N and 50N The test accuracy is better than 0.5, which effectively guarantees the accuracy of test results The equipment supports the two-way test mode of tension and compression Under the two test modes, the test speed can be set arbitrarily from the seven modes of 50mm / min, 100mm / min, 150 mm / min, 200 mm / min, 250 mm / min, 300 mm / min and 500 mm / min The equipment adopts pneumatic clamp, which can effectively prevent the sample from slipping The travel of the clamp is 950mm Through intelligent configuration of limit protection, overload protection and automatic return, the operation safety of users can be protected More than 100 different sample clamps are configured for users to choose, which can meet the test requirements of more than 1000 materials, and provide customized services according to different test materials 5 During the test (1) use the sampler to cut 10 samples from each hot sealing edge of the four side sealed chicken claw packaging bag purchased, and cut them from three different packaging bags The width of the sample is 15mm and the development length is 100mm (2) The test parameters such as width, thickness and test speed are set in the software of the tensile testing machine (3) Unfold and clamp the specimen on the fixture, so that the long axis direction of the specimen coincides with the center line of the fixture (4) Click the start test button in the software to start the test The system automatically calculates and records the test results 6 The results showed that the average heat sealing strength of 10 upper edge sealing samples, 10 lower edge sealing samples, 10 left edge sealing samples and 10 right edge sealing samples were 41.32n/15mm, 50.09n/15mm, 43.41n/15mm and 43.11n/15mm respectively Take the font on the front of the package as the basis for judging the upper, lower, left and right edge sealing 7 Conclusion Labthink blue light XLW (EC) intelligent electronic tensile testing machine has the advantages of reliable test results, simple operation and high test efficiency in detecting the heat sealing strength of chicken claw packaging bags At the same time, it can also be used to test the peel strength, tensile strength and deformation rate, tear force and other properties of soft packaging It is a multifunctional and cost-effective testing instrument In addition to the heat sealing strength, phoenix claw packaging also needs to pay attention to its oxygen transmission, puncture resistance, friction coefficient and other index performance Labthink blue light, the relevant testing instrument, can provide you with the details of the instrument You can log in to blue light to check or call directly for consultation Labthink is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry Copyright notice: All rights reserved Jinan Languang mechanical and Electrical Technology Co., Ltd no reprint without permission!