Why do we need to test the oxygen barrier performance of cosmetic hoses?
Why do we need to test the oxygen barrier performance of cosmetic hoses?
At present, there are a wide variety of cosmetic packaging on the market, and only plastic materials include plastic bottles, plastic boxes, plastic bags, plastic hoses and so on. In recent years, with the increasing popularity of cosmetics, cosmetic plastic tube packaging has developed rapidly due to its advantages such as less use of raw materials and low cost. It has occupied the mainstream of the cosmetic packaging market and is mainly used in cleansing products, skin care products, and beauty salon products. . At present, the commonly used plastic hoses in cosmetic packaging mainly include aluminum-plastic composite hoses, all-plastic composite hoses and plastic co-extruded hoses, which can meet the various needs of cosmetic packaging. Undoubtedly, the primary function of cosmetic packaging is to protect the contents. The main ingredients of cosmetics are oils, water-soluble polymer compounds, surfactants and so on. As we all know, glycerin, protein, etc. are the material basis for the growth and reproduction of microorganisms, while oxygen and moisture are factors that affect the growth of microorganisms; the unsaturated bonds in oils are easily oxidized to cause rancidity and deterioration, and at the same time produce peroxides, acids, and aldehydes. And other irritating substances, and emit a rancid odor. It can be seen that oxygen is the most important factor causing cosmetic deterioration. Therefore, the cosmetic hose needs to have excellent gas barrier properties, which can effectively prevent the infiltration of oxygen and odorous gas, and prevent the leakage of the content fragrance and effective ingredients. The standard 'GBT-Co-extruded multilayer composite hose for cosmetics' clearly stipulates that the oxygen transmission rate of the hose is tested in accordance with the 'GBT Plastic Film and Sheet Gas Permeability Test Method Pressure Difference Method'. The oxygen transmission rate shall not exceed cm (m·h·.MPa). It can be seen that this standard only regulates the detection of the oxygen permeability of the sheet, and does not specify the oxygen permeability of the entire tube body after the hose is made. Doesn’t it need to be tested? The answer is no. Because the overall sealing performance of the cosmetic packaging and the oxygen permeability of the tube directly affect the storage life of the cosmetics and the changes in the original properties, it is an indicator that relevant companies must pay attention to and control. The standard 'GBT-Coulometer Test Method for Oxygen Permeability Testing of Packages and Containers' issued by my country on the year, month and day, introduced the standard test method for measuring the oxygen transmission rate of dry packages by using a coulometer sensor. . A brief introduction is as follows: First, fix the tube to be tested on the test fixture with sealant, and after placing it for a certain period of time, fix the sealed sample to the testing equipment. Slowly purge the air inside the tube with a nitrogen stream. The outer surface of the tube is in an environment with a known oxygen concentration, that is, an indoor environment with% oxygen content or an environment with% oxygen content. The oxygen enters the nitrogen carrier gas through the pipe and is carried to the Coulomb electric sensor along with the nitrogen carrier gas flow. The oxygen passing through the sensor generates a current, and the current is proportional to the amount of oxygen carried to the power sensor per unit time. From this, the oxygen transmission rate of the whole tube can be obtained, and the shelf life of the product can be better determined. Cosmetics are in direct contact with the skin of the human body, and their quality will directly affect the health of the human body. In order to ensure product quality and service life, and ensure the second life of the product, it is very important to detect the oxygen permeability of the hose sheet and the formed tube body. About Cosmetic Packaging Material Factory Hose Cosmetic Packaging Material Factory is an enterprise specializing in the research and production of cosmetic hoses, which are mainly used for cosmetic packaging, food packaging, pharmaceutical packaging, hotel supplies packaging, personal care product packaging, etc. Committed to providing customers with high-quality cosmetic hoses and packaging solutions. If you have any cosmetic hose needs, please tell us and we will provide the best cosmetic hose solution. In order to give you a better understanding of our company, please visit our company s:. Specializing in the production of cosmetic hoses. Factory direct sales! Contact cosmetic packaging material factory hose