Abstract: Flavored meat snacks, such as various beef gravy, pork pupa, duck neck, and chicken feet, usually require packaging processes such as roll wrapping, packaging, and sealing to form a flavored meat snack. Product packaging. In the entire packaging process, the friction coefficient is an important factor in determining whether the packaging process can proceed smoothly. This article uses the MXD-02 friction coefficient meter independently developed by Jinan Languang Electromechanical Technology Co., Ltd. to test the friction coefficient of the inner layer (heat seal layer) of the beef grain packaging film, and briefly describes the test principle and parameters of the equipment. The use of information such as scope, so as to provide a reference for the company to achieve control of the coefficient of friction of the packaging material.
Summary: soft plastic packaging, packaging film, friction coefficient, smoothness, opening, friction coefficient meter, flavored meat snacks, meat food, roll slipping, pumping
1 , the meaning
The market has a wide variety of meat products and a wide range of food groups. It covers consumers of all ages and is a popular snack food. The soft plastic packaging purchased by the flavored meat snack production enterprises is mainly divided into a roll film and a partially heat-sealed molded packaging bag. If the roll film is used, the basic process of packaging is to roll the bag, fill the contents, and heat-seal; In the case of a formed packaging bag, the packaging process does not require the unwinding process, and the contents are directly filled into the packaging bag and then heat-sealed. Regardless of the packaging method, soft plastic packaging is required to have a suitable coefficient of friction. If the friction coefficient of the package is low, that is, the frictional resistance between the two layers of soft plastic packaging is small, problems such as slippage and misalignment of seals may occur during unwinding and forming of the bag; if the coefficient of friction is too large, unwinding easily occurs. Chang, even soft plastic packaging is stretched and deformed, but also easy to appear poor opening of the bag, affecting the content of the filling efficiency. Therefore, controlling the appropriate friction coefficient is conducive to the smooth progress of the packaging process.
Packaging film forming bag
Figure 1 soft plastic packaging
2 , the status quo
At present, the determination of the coefficient of friction of soft plastic packaging is mainly based on the standard GB 10006-1988 “Measurement Method for Friction Coefficient of Plastic Film and Sheetâ€.
3 , test sample
The packaging film used by a certain brand of beef kernels.
4 , test equipment
The test equipment used in this test sample is the MXD-02 friction coefficient meter independently developed and produced by Jinan Languang Electromechanical Technology Co., Ltd.
Figure 2 MXD-02 friction coefficient meter
4.1 Test principle
This equipment is mainly designed based on the calculation formula of friction coefficient. That is to say, the static friction coefficient and the dynamic friction coefficient of the specimen are obtained by automatically testing and recording the tension value of the specimen with a certain pressure from the standstill to the relative sliding process.
4.2 Scope of application
(1) This equipment is specialized for measuring plastic films and sheets, rubber, paper, cardboard, woven bags, textiles, non-woven fabrics, communication cables, metal cables for optical cables, conveyor belts, wood, coatings, brake pads, wipers The coefficient of static friction and coefficient of dynamic friction of sliding materials such as shoes, shoes, and tires. It can also be used for the determination of the smoothness of cosmetic products such as cosmetics and eye drops.
(2) The equipment can meet many national and international standards such as ISO 8295 , GB 10006 , ASTM D1894 , TAPPI T816, etc.
4.3 Test parameters
One test can measure the dynamic and static friction coefficient of the sample at the same time. The test load range is 0 ~ 5 N and the test accuracy is 0.5 . According to the provisions of different test standards, this device has 70 mm , 150 mm two kinds of test strokes to choose from. The device uses a standard slider mass of 200 g . Other weight sliders can be customized to meet specific needs. Both the instrument test bench and the test slider are demagnetized and remanently tested, effectively reducing system test errors.5 , test steps
(1) from the surface of the packaging film sample clipping 8 cm × 20 cm, 63 mm × 63 mm 3 both samples each, i.e. 3 groups to obtain a sample.
(2) Place one of the 8 cm × 20 cm pieces of the heat-seal layer upward and place it flat on a horizontal test bench.
(3) Contact one of the 63 mm × 63 mm specimen heat seal layers with the slider, wrap the slider, and fix it.
(4) Place the specimen-mounted slider without impact on the middle of the specimen that has been fixed in step (2) to ensure that the test system is not subjected to force.
Figure 3 sample mounting process
(5) Set test parameters, such as test speed and test stroke, and click Start test option to start the test.
(6) After the two specimens contacted for 15 s , relative movement began. The equipment automatically records changes in the force during the test and calculates the test results.
(7) Repeat steps (2) ~ (6) to test the dynamic and static friction coefficients of the remaining 2 groups of specimens.
6 , test results
The test results of the three groups of specimens are: the first group, static friction coefficient 0.274 , dynamic friction coefficient 0.245 ; second group, static friction coefficient 0.271 , dynamic friction coefficient 0.243 ; third group, static friction coefficient 0.272 , dynamic friction coefficient 0.243 .
7. Summary
MXD-02 friction coefficient meter has a wide range of application in testing friction coefficient, test data repeatability, test results, human factors, less interference, can accurately reflect the friction coefficient of packaging materials. Labthink has been committed to providing professional testing services and equipment for customers around the world, focusing on solving inconvenient packaging problems for customers, and learning more about Labthink 's testing equipment and services. You can visit the website of Jinan Languang Company to view Specific information or direct call advice. 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.