Abstract: As a kind of seasoning, mustard sauce is prone to deterioration due to a large amount of oxygen, which causes bitter taste. Therefore, its packaging is critical to the barrier of external oxygen. In this paper, the oxygen permeability of the package is judged by testing the oxygen transmission rate of the plastic tube for mustard sauce. By introducing the oxygen transmission rate detection process, the testing principle of the C230 oxygen transmission rate tester and the equipment parameters, it provides a reference for food companies to select suitable test methods or testing equipment for oxygen barrier properties of food containers. Key words: plastic tube, oxygen barrier, oxygen barrier, oxygen transmission rate (quantity), oxygen transmission rate tester, isobaric method, seasoning, mustard sauce 1, meaning The thiocyanate component in mustard sauce can prevent tooth decay and has a certain effect on human health. The oil component has a beauty and beauty effect. The demand for mustard sauce is increasing on the table, and how the nutrients of the mustard remain intact remains the focus of the production company. If the mustard sauce is exposed to the air for a long period of time, the oxidative deterioration of the nutrients may occur, resulting in problems such as bitter taste of the mustard. Therefore, the mustard product is usually required to be protected from light and moisture at room temperature and sealed for storage. For the convenience of consumers, mustard sauce is usually packaged and stored in a plastic hose or bag form, wherein the plastic tube has better oxygen barrier properties and is gradually being widely used. The plastic pipes have different levels of oxygen barrier. How to properly use the better performance plastic pipe as the package of mustard sauce requires the overall oxygen transmission rate test of the plastic pipe in advance. Figure 1 mustard plastic tube packaging 2, reference standard The domestic oxygen transmission rate test method for plastic tube packaging is mainly the detection method of the coulomb principle. This article is tested according to the method specified in GB/T 31354-2014 "Packaging and Container Oxygen Permeability Test Method Coulomb Test Method". This standard specifies test methods for the oxygen permeability of packages and containers using coulometric methods under steady-state conditions. This standard is applicable to plastic and composite packages and containers in a dry environment with a volume of less than 2L. Test the oxygen permeability of packaging materials. 3, test samples A Japanese brand mustard plastic tube packaging was used as the experimental sample. 4, test equipment This paper uses the C230 oxygen permeation tester independently developed by Jinan Languang Electromechanical Technology Co., Ltd. to test the oxygen barrier performance of the sample. Figure 2 C230 oxygen transmission rate tester 4.1 Equipment principle The C230 oxygen transmission rate tester uses the isostatic test principle to clamp the pre-treated sample between the test chambers. Oxygen or air flows on one side of the film, and high-purity nitrogen flows on the other side of the film. Oxygen molecules diffuse through the membrane to the other side of the high purity nitrogen and are carried to the sensor by the flowing nitrogen. By analyzing the oxygen concentration measured by the sensor, parameters such as oxygen transmission rate are calculated. For packaging containers, high purity nitrogen flows through the container, and air or high purity oxygen surrounds the outside of the container. 4.2 Scope of application Container: Suitable for oxygen transmission rate test of hoses, bottles, bags, cans, boxes and barrels made of plastic, rubber, paper, paper-plastic composite, glass, metal, etc., such as toothpaste hose, cosmetic hose , Coke bottle, peanut oil barrel, Tetra Pak packaging, vacuum packaging bags, metal three cans, jelly cups, yogurt cups, etc. Film type: It is suitable for oxygen transmission rate test of film materials such as various plastic composite films, paper-plastic composite films, co-extruded films, aluminized films, aluminum foils, and aluminum-plastic composite films. Sheet type: It is suitable for oxygen transmission rate test of various engineering plastics, rubber, building materials and other sheet materials, such as PP sheet, PVC sheet, PVDC sheet and so on. Standard: It can meet GB/T 31354, ISO 15105-2, GB/T 19789, ASTM D3985, ASTM F2622, ASTM F1307, ASTM F1927, JIS K7126-2, YBB00082003 and many other national and international standards. 4.3 Equipment parameters The test range of the container sample is 0.0005 ~ 25 cm3 / (pkg · d), the resolution is 0.01 cm3 / (pkg · d); the test range of the film sample is 0.1 ~ 5000 cm3 / (m2 · d), The resolution is 0.01 cm3/(m2·d). Three identical or different samples can be tested at the same time. The system can support up to 10 instruments in parallel connection, and establish an efficient system for simultaneous testing of 30 samples. The test temperature control range is 10 ~ 55 °C, and the temperature control accuracy is ± 0.2 °C. The test humidity control range is 0% RH ~ 90% RH, and the humidity control accuracy is ± 2% RH. Wide range, high precision temperature and humidity control range, both sides of the sample can be humidified to achieve the test under different temperature and humidity conditions. The world's leading pressure compensation technology guarantees high precision and repeatability of test results. It can be combined with the water vapor transmission rate test instrument to form a hybrid test system, which is controlled by a computer to achieve simultaneous oxygen and water vapor transmission rate testing. Support LystemTM laboratory data sharing system to manage test results and test reports. 5, the test process (1) Cut the bottom of the plastic tube, and then fasten the bottom opening of the plastic tube to the container sealing device. After the sealing is completed, clamp it into the equipment, and then use the sealed bag to carry the container and the sealing tray. Sealed and bandaged. (2) Set test parameters such as test temperature and test humidity. Click the test option and the test starts. (3) Adjust humidity and carrier gas flow. (4) After the test is completed, the oxygen transmission rate test result automatically calculated by the recording device is read. 6, test results The plastic tube samples tested herein have an oxygen transmission rate of 0.0247 cm3/(pkg·d). 7. Conclusion The C230 oxygen transmission rate tester has the advantages of high test efficiency, high precision and good repeatability when testing various plastic containers. As a leader in the packaging inspection equipment manufacturing industry, Labthink is committed to providing professional, high-end packaging inspection equipment and intimate and efficient packaging inspection services to customers around the world, meeting the needs of packaging inspection equipment and services from all over the world. Praise. Learn about the relevant packaging testing equipment and services, you can log in to view. Jinan Languang Electromechanical Technology Co., Ltd. is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry. Pet Apparel And Accessories, Cat Apparel ,Dog Apparel,Petaccessories Ningbo Wellcome Trading Co., Ltd. , https://www.huike-homecare.com
