Abstract: Hot pot catering is accepted and loved by consumers because of its convenience and popularity. However, some of the convenient plastic packaging products used often suffer from quality problems due to poor packaging performance. In this paper, the effect of heat sealing (EC) Auto Tensile Tester test pot at the end of the heat-seal plastic flexible packaging, Labthink XLW, and describes the contents and scope of the basic process test equipment test, the test principle, to help food companies Effectively solve the problem of product oil leakage. Key words: seasoning, hot pot bottom material, plastic composite film, packaging sealing, packaging edge sealing, oil leakage, heat sealing strength, sealing strength, intelligent electronic tensile testing machine 1 , meaning Hot pot is no longer exclusive to winter. More and more people love hot pot in all seasons. Most people try to buy hot pot bottom materials to make hot pot at home, so they have derived bagged or boxed hot pot bottom material. In the market situation where the demand for hot pot is high, the occurrence of oil leakage affecting product quality and safety occurs when the edge seal (ie heat seal) occurs. The oil component in the light package penetrates into the heat seal, and the heavy grease The ingredients directly ooze out of the package, which not only reduces the brand image of the product, but also causes quality problems such as mold and swelling of the hot pot bottom material, which seriously affects the competitiveness of the product and the image of the product. Figure 1 Hot pot bottom material plastic composite film packaging 2 , the implementation of standards The domestic test standards for the heat-sealing strength of plastic film packaging bags mainly refer to Q B / T 2358-1998 " Test method for heat-sealing strength of plastic film packaging bags". 3 , test samples A plastic composite packaging of hot pot bottom material provided by a food factory. 4 , test equipment Jinan Languang Electromechanical Technology Co., Ltd. independently developed and designed the XLW ( EC ) intelligent electronic tensile testing machine. Figure 2 XLW ( EC ) intelligent electronic tensile testing machine 4.1 Test principle The sample is clamped between the two chucks of the clamp, and the two chucks are moved relative to each other. The force value sensor and the built-in displacement sensor on the movable chuck are used to collect the force value change and displacement during the test. The change is made to calculate the tensile index, deformation rate, heat seal strength, peel strength and the like of the sample. 4.2 Scope of application (1) This equipment is specialized in plastic film, composite materials, flexible packaging materials, plastic hoses, adhesives, adhesive tapes, stickers, medical patches, release papers, protective films, composite covers, metal Heat sealing, stretching, peeling, deformation, tearing, bonding, puncture force, opening force, low speed unwinding force, peeling force, etc. of foil, separator, back sheet material, non-woven fabric, rubber, paper, etc. tests, such as oral tearing force of the lid, the piercing / drawing force, puncture force infusion bag cover, soft rubber stopper piercing / drawing force and the like. (2) This equipment meets many national and international standards, such as 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/T 2791 , GB/T 2792 , GB/T 17590 , ISO 37 , ASTM E4 , ASTM D882 , ASTM D1938 , ASTM D3330 , ASTM F88 , ASTM F904 , JIS P8113 , QB/T 2358 , QB/T 1130, etc. 4.3 Equipment parameters 5 , the test process (1) are cut out to a width from four heat Edge permeability problems arise bag 150 mm, a sample strip developed length of 1 00 mm 1 0. ( 2) Set parameter information such as sample width and test speed. ( 3) The two ends of the sample strip are respectively clamped on the two clamps, and the long axis direction of the sample strip should coincide with the center line of the two clamps. ( 4) Click the Start Test option and the test begins. The instrument automatically records the force values ​​during the test and calculates the test results. 6 , test results The test results are as follows: the average heat seal strength of the upper seal is 3.467 N/15 mm , the average heat seal strength of the lower seal is 4.375 N/15 mm , and the average heat seal strength of the left seal is 6.758 N/15 mm , right. The average thermal strength of the edge seal is 8.457 N/15 mm . 7 , conclusion From the above test results, the heat seal strength values ​​of the four heat seals are low, which is the main cause of oil leakage in the hot pot bottom bag. It is recommended that the manufacturer's production process and the heat seal strength should be strengthened before leaving the factory. Detection. In addition, the overall sealing performance test of the product should be strengthened. You can visit the Jinan Languang Company or call us directly for related testing equipment . The more you understand, the more you trust! 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