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Abstract: Spicy sausage is a kind of common snack food. Most of them contain liquid components similar to oils. They are usually packaged in stretched packaging. After the package is completed, oil seepage at the hot sealing port often occurs, affecting the image of the product. It will also have an adverse effect on the quality of spicy sausages. In this paper, the self-developed and designed intelligent electronic tensile testing machine XLW (PC) of Jinan Languang Electromechanical Technology Co., Ltd. was used to test the heat seal strength of the spicy intestine stretch packaging, and the test principle, equipment parameters and brief test of the equipment were analyzed. The process has certain reference significance for the hot sausage sealing oil production enterprises to solve the problem.
Keywords: spicy sausage, meat products, stretch packaging, plastic composite film, intelligent electronic tensile testing machine, sealing, oil leakage, aluminum-plastic composite film, aluminized composite film, sealing edge, heat sealing strength, heat sealing strength, sealing strength
1 , the meaning
Spicy and intestine has a unique taste, high content of protein, fat and other ingredients, and contains some oily liquid ingredients, attractive colors and fragrances, it is people's food and leisure dishes for standing and traveling. In the bright development prospects of spicy sausages, the incidents of heat sealing and oil leakage, which affect quality and safety, have occurred from time to time. The oil components in the light package penetrate into the heat-seal side, and the heavy oil components directly leak out of the package. Externally, it will not only reduce the brand image of the product, but will even cause quality problems such as mildew and bagging in the spicy sausage, seriously affecting the competitiveness of the company's products.
1 heat seal oil leaking slightly
2 , the status quo
(1) Packaging Forms The common spicy sausages are mostly in stretched packaging form. The packaging bag consists of a cover film and a bottom film. After being put into the spicy sausage, the cover film and the bottom film are formed by a heat sealing process. This kind of packaging has a beautiful appearance and is easy to use. Consumers can directly see the color and shape of the spicy sausage.
Figure 2 spicy sausage stretch packaging form
(2) Standard situation At present, the test standards for the heat seal strength of plastic film packaging bags mainly refer to QB/T 2358-1998 "Test methods for heat sealing strength of plastic film packaging bags".
3 , sample
A brand of spicy sausage packaging bags with oil leakage problems.
4 , test equipment
Test equipment bag is a heat sealing strength test described herein, Labthink XLW (PC) intelligent electronic tensile testing machine.
Figure 3 XLW (PC) Intelligent Electronic Tensile Testing Machine
4.1 Test principle
XLW (PC) Intelligent Electronic Tensile Testing Machine includes two clamps, one is a movable clamp ( moving clamp ) and the other is a fixed clamp. The dynamic clamp is equipped with a force sensor and a displacement sensor. During the test, the two ends of the sample are respectively clamped on two clamps, and the two clamps perform relative movement. During the movement of the moving clamp, the force sensor automatically records the change of the force value during the destruction of the heat sealing edge.
4.2 Equipment Parameters
500 N and 50 N force sensors are available, with a test accuracy of 0.5 , which leads the industry and effectively ensures the accuracy of the test results. According to relevant standards, the equipment provides seven test speeds of 50 mm/min , 100 mm/min , 150 mm/min , 200 mm/min , 250 mm/min , 300 mm/min , and 500 mm/min according to the test standard. Request freedom to set. The long stroke of 1000 mm can be tested with super-large deformation rate materials. Limits protection, overload protection, automatic return, and power-down memory intelligent configuration to ensure the safety of the user's operation. A tester integrates seven independent test programs such as stretching, peeling, and tearing to provide users with a variety of test items to choose from.4.3 Scope of application
(1) This equipment can be used for the tensile properties, tensile breaking strength, tensile strength and deformation rate, tear resistance, peel strength, heat seal strength, and puncture resistance of plastic films, composite films, and sheets. Index test; 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 cap and jelly cup, yogurt cup cover film open Force testing of product and packaging performance.
(2) The equipment can meet the requirements of ISO 37 , GB/T 10004-2008 , GB 8808 , GB/T 1040.1-2006 ~ GB/T 1040.4-2006 , GB/T 1040.5-2008 , QB/T 2358 , QB/T 1130 , ASTM D 882 , ASTM D 1938 , ASTM D 3330, and more than 20 domestic and foreign related standards.
5 , test procedure
(1) From the four heat-sealing edges of the packaging bag where the oil leakage problem occurs, take a width of 150 mm and spread 10 test strips with a length of 100 mm .
(2) Set the parameters such as sample width and test speed.
(3) The two ends of the sample strip are respectively clamped on two jigs. The long axis direction of the strip should coincide with the center line of the two jigs.
(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
Test results: Edge on average heat seal strength of 4.632 N / 15mm, the average heat seal strength of the sealed edges 3.016 N / 15mm, the average heat seal strength of the left edge-sealing of 5.917 N / 15mm, Right The average seal seal strength is 7.361 N/15mm . The heat seal strength values ​​of the four heat sealing edges are relatively low, which is the main reason causing the oil leakage problem in the sachet packaging bags.
7. Summary
The sealing effect of the sealing effect of the packaging bag is a key factor related to whether the packaging bag will cause problems such as air leakage, liquid leakage, oil leakage, etc. XLW (PC) intelligent electronic tensile testing machine can be used professionally for heat sealing strength of packaging bags. The test results are accurate, the test accuracy is high, and the operation is simple. At the same time, the instrument can also be used for the testing of peel strength, puncture resistance, tensile strength and deformation rate of the packaging bag, and the cost performance is very high. Labthink has been committed to providing professional testing services and equipment to customers around the world, focused on providing customers solve incurable diseases in packaging, testing equipment and services to learn more of Labthink, you can visit the website to see the blue light device Specific information or call for advice. The more you understand, the more trust! Jinan Languang Electromechanical Technology Co., Ltd. is willing to take this opportunity to increase technical exchanges and cooperation with enterprises and institutions in the industry.
Copyright Notice: The article is copyrighted by Jinan Languang Electromechanical Technology Co., Ltd.
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