Evaluation method of oxygen barrier performance of metal bottle packaging for health food

Abstract: the health food is mostly the product with high nutritional composition, so it is required that the packaging of the health food should have high barrier to the external oxygen and water vapor, that is to say, the packaging material has high resistance to oxygen and humidity, so as to ensure that the nutrition of the health food is not damaged and not easy to deteriorate In this paper, the ox2 / 230 oxygen permeability test system of the testable container is used to test the oxygen permeability of the high barrier aluminum bottle used in the health liquid food, so as to evaluate its oxygen resistance, which can provide the data reference for the relevant enterprises Key words: health food, packaging container, metal bottle, aluminum bottle, oxygen resistance, barrier, oxygen permeability (rate), oxygen permeability test system, isobaric method 1 Meaning health food is a kind of food, which not only has the nature of food, but also can improve human function, but also can not replace the drugs used to treat diseases Most of the health food is made from natural plants, vegetables, fruits, dairy products and other materials according to the nutrients needed by the human body Some of the health food ingredients are easy to be oxidized or hygroscopic, so it is required that its packaging should have excellent ability to block the external oxygen and water vapor The packaging of health food is mainly made of high barrier materials, which are usually packed in plastic or metal containers, which can not only protect the quality of contents, but also meet the needs of aesthetics The health food packaged by metal bottle is easy to be oxidized and has a long shelf life Therefore, the barrier of metal bottle determines the quality and shelf life of health food How to evaluate the oxygen barrier of the metal bottle to the outside world, we need to use a special device to test the oxygen permeability of the container The low oxygen permeability indicates the high oxygen barrier of the metal bottle In this paper, the ox2 / 230 oxygen transmittance test system independently developed and produced by Labthink Languang is used to test the oxygen transmittance of metal bottles, that is, the external oxygen barrier of the bottles, which can provide technical reference for the relevant health food production industry Figure 1 Metal bottles for health food 2 At present, there is no domestic standard for the detection of oxygen permeability of containers In this paper, ASTM f1307-2002 (2007) Standard Test Method for the measurement of oxygen permeability of solid packaging by power consumption sensor is used frequently 3 Test sample: a brand of nutrition liquid aluminum bottle 4 For the vessel samples with small oxygen transmittance, the test equipment usually follows the principle of isobaric method specified in ASTM f1307 In this paper, the lanthink ox2 / 230 oxygen transmittance test system is used for testing Figure 2 ox2 / 230 oxygen transmittance test system 4.1 equipment principle ox2 / 230 The oxygen transmittance test system uses the isobaric method to test the principle, pre-treatment of the sample is clamped between the test chamber, oxygen or air flows in one side of the film, high-purity nitrogen flows in the other side of the film, oxygen molecules diffuses through the film to the other side of the high-purity nitrogen, carried to the sensor by the flowing nitrogen Through the analysis of the oxygen concentration measured by the sensor, parameters such as oxygen transmittance can be calculated For packaging containers, high-purity nitrogen flows in the container, while air or high-purity oxygen surrounds the outside of the container 4.2 scope of application containers: it is applicable to the oxygen permeability test of bottles, bags, cans, boxes and barrels made of plastic, metal, rubber, paper plastic composite, glass and other materials, such as Coke bottles, peanut oil barrels, Tetra Pak packaging, vacuum packaging bags, metal three cans, plastic cosmetics packaging, toothpaste hoses, jelly cups, yogurt cups, etc Film type: it is applicable to the oxygen permeability test of various plastic cover film, plastic composite film, paper plastic composite film, coextrusion film, aluminum coating film, aluminum foil, aluminum plastic composite film and other film materials Sheet type: it is suitable for oxygen permeability test of sheet materials such as engineering plastics, rubber, building materials, etc., such as PP sheet, PVC sheet, PVDC sheet, etc Applicable standards: ASTM f1307, ISO 15105-2, GB / T 19789, ASTM d3985, ASTM f2622, ASTM f1927, JIS k7126-2, ybb00082003 and other national and international standards 4.3 equipment parameters the test range of container type sample is 0.0001 ~ 60cm 3 / (PKG · d), the resolution is 0.00001 cm3 / (PKG · d); the test range of thin film type sample is 0.01 ~ 6500 cm3 / (M 2 · d), the resolution is 0.001 cm3 / (M2 · D) Three identical or different samples can be tested at the same time The system Zui can support parallel connection of 10 instruments and establish a system for simultaneous test of 30 samples The temperature control range is 15 ~ 55 ℃, and the temperature control accuracy is ± 0.1 ℃ The humidity control range is 0% RH, 35% RH ~ 90% RH, and the humidity control accuracy is ± 1% 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 pressure compensation technology ensures the high accuracy and repeatability of the test results It can be combined with the water vapor transmittance test system to form a hybrid test system, which is controlled by a computer to realize the simultaneous measurement of oxygen and water vapor transmittance Support Lystem TM laboratory data sharing system, and manage test results and test reports in a unified way 5 During the test (1) the edge of the aluminum bottle mouth is sealed and fixed on the sealing device of the container sample with the fast fixing adhesive with strong sealing and stickiness After the sealing is completed, it is clamped into the instrument, and then the bottle body sample and the sealing device are sealed and bound with the sealing bag (2) Open the instrument control software, set the test parameters such as test temperature and test humidity, and click the test option to start the test (3) Adjust humidity and carrier gas flow (4) After the test, record the test results automatically calculated by the instrument 6 The results showed that the oxygen transmittance of the sample bottle was 0.00148 cm 3 / (PKG · day) 7 Conclusion metal bottle is very important for the barrier of health food, so it is necessary to strictly monitor the oxygen and water vapor permeability of the bottle to effectively evaluate the barrier performance of the bottle to oxygen and water vapor The ox2 / 230 oxygen transmittance test system has the advantages of high precision, good stability and convenient operation in testing the oxygen barrier of metal bottle packaging of health food Labthink Languang, as the leading manufacturer of barrier testing instruments for packaging testing, produces barrier testing instruments in many countries and regions at home and abroad, with a market share far higher than other brands in the domestic testing industry, and is committed to providing professional and other packaging performance testing equipment and thoughtful packaging testing services for global customers To learn about the relevant packaging testing equipment and services, you can log in Jinan Languang company to check the specific product information or call for consultation Jinan Languang mechanical and Electrical Technology Co., Ltd is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry.