Abstract: The heat seal strength is also referred to as heat seal strength and seal strength. It indicates the fastness of the heat seal layer of the package and is an important performance indicator that reflects the seal quality of the sauce package. This article uses Labthink Languang XLW (EC) intelligent electronic tensile testing machine to test the heat seal performance of instant noodle sauce package, and introduces the basic process of the test, testing principles and the scope of application of the test equipment and other content, to help food companies effectively solve product leakage The problem. Keywords: instant noodle, sauce package, plastic composite film, seal leakage, heat seal strength, intelligent electronic tensile testing machine 1 , the meaning The sauce package is an important part of instant foods such as instant noodles, and its packaging should have good heat sealing properties. If the heat seal strength is low, it is prone to problems such as cracking at the sealer, leakage, etc., and the phenomenon of wire drawing is easy to occur when the bag is cut; if the heat seal strength is high, the heat seal place is prone to shrinkage, and may even lead to the packaging bag. The problem of root cut at the heat sealing place caused the package to easily leak at the heat sealing root and even broke the bag. The leakage of the sauce package not only reduces the brand image of the product, but also may cause moldy, deteriorative, and other quality problems in the sauce package, seriously affecting the product image of the company. 2 , the implementation of standards The test standards for the heat seal strength of plastic film packaging bags in China refer mainly to Q B / T 2358-1998 " Test methods for heat sealing strength of plastic film packaging bags". 3 , test sample Instant noodle sauce bags provided by a food factory. 4 , test equipment Jinan Languang Electromechanical Technology Co., Ltd. independently researches and develops the XLW(EC) intelligent electronic tensile testing machine. 4.1 Test principle The sample is clamped between the two clamps of the clamp. The two clamps move relative to each other. The force value sensor and the built-in displacement sensor on the movable clamp are used to collect the force value change and displacement during the test. Changes were made to calculate the heat seal strength, tensile strength, deformation rate, peel strength, and puncture resistance performance of the sample. 4.2 Scope of application (1) This equipment is mainly used for plastic film, composite materials, soft packaging materials, plastic hoses, adhesives, adhesive tapes, stickers, medical patches, release paper, protective film, combination cover, metal Heat sealing, stretching, peeling, deformation, tearing, bonding, puncture force, opening force, low speed unwinding force, peeling force, etc. of foils, separators, back sheet materials, non-woven fabrics, 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) Edge from four heat bags are cut out to a width of 15mm, a sample strip developed length of 1 00 mm 1 0. ( 2) Set the parameters such as sample width and test speed. ( 3) The two ends of the specimen strip are respectively clamped on two fixtures, and the long axis direction of the specimen strip should coincide with the centerlines of the two fixtures. ( 4) Click to start the 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 average values ​​of the heat seal strengths of the upper, lower and right seals of the samples tested were: 5.019 N/15mm , 4.105 N/15mm , and 4.257 N/15mm . 7. Conclusion From the above test results, the heat seal strength values ​​of the heat sealing edges of the sauce package are all low, which is the main reason for the leakage of the package of the sauce package. Of Labthink XLW (EC) intelligent electronic tensile testing machine with a reliable test result, the equipment is simple, high efficiency test, sealing performance can truly reflect the noodle sauce packet. It is recommended that the manufacturer's production chain and the factory should strengthen the heat seal strength test. In addition, we should strengthen the overall product sealing performance, oxygen permeability and other key project testing, to learn more about the relevant instrument information, you can visit the website of Jinan Languang company to view specific information or call us . The more you understand, the more trust! Labthink expects to enhance technology exchanges and cooperation with enterprises and institutions in the industry! Double Braided Nylon Rope / SPM
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Test plan for seal strength of instant noodle sauce seal