Barrier performance test of potato chip packaging

Potato chips are popular because of their convenience, rich taste and long shelf life Potato chips belong to fried and dried foods, which are easy to oxidize, deteriorate, get damp and get moldy Once oxidized, fatty acids are easy to be produced, resulting in the acid value exceeding the standard; while getting damp will affect the taste of potato chips, leading to deterioration or even mildew, and then causing quality accidents in the process of consumption Therefore, it is very important to test the barrier performance of potato chip packaging The so-called barrier performance of potato chips refers to the barrier effect of packaging materials on gas, liquid and other penetrations The barrier test includes the test of gas (oxygen, nitrogen, carbon dioxide, etc.) and water vapor permeability Barrier performance is an important factor affecting the shelf life quality of products, and it is also an important reference to analyze the shelf life Through detection, it can analyze and solve the oxidation, damp and mildew problems caused by oxygen or water vapor sensitivity (1) Detection of anti oxygen performance of potato chip packaging bag: potato chip is a kind of fried food, while oil is mainly animal or plant fat, which is easy to oxidize and deteriorate, easy to produce fatty acids, resulting in acid value exceeding the standard In the process of storage, too long time, too high temperature and poor oxygen resistance of packaging materials may lead to the potato chips contacting with too much oxygen, which requires the enterprises to strictly control the oxygen resistance of packaging materials We can use gpt-301 differential pressure gas permeameter produced by Saicheng electronic technology for measurement The instrument conforms to the test method specified in the food packaging test standard, and implements the standard of GB / T 1038-2000 plastic film and sheet gas permeability test method differential pressure method It can help enterprises to control the permeability index of oxygen, carbon dioxide, nitrogen and other gases At the same time, it can measure the gas transmissivity and solubility coefficient of the sample The test range can be expanded according to the needs to meet the requirements of large transmissivity test It can fit the data at any temperature, and easily obtain the test results under extreme conditions (2) water resistance and moisture-proof performance test of potato chip packaging bag: water resistance and moisture-proof are important means to solve the problem of potato chips affected by moisture and mildew The moisture permeability of food packaging materials is generally tested by weighing method The w \ 601 water vapor transmittance tester produced by Saicheng technology is based on the cup test principle It is a professional water vapor transmittance tester for film samples, which is applicable to the measurement of water vapor transmittance of plastic film, composite film and other films, sheet materials, medical, building materials and other materials Through the measurement of water vapor transmittance, the technical indexes of controlling and adjusting materials can be achieved to meet the different requirements of product application For the intermittent weighing meeting the standard requirements, the system will automatically reset before each measurement to ensure the uniformity and accuracy of data Three (six) samples can be tested at the same time in a single test The lifting and weighing of the moisture permeable cup is controlled by the cylinder, and the data is accurate and reliable The above content mainly introduces the barrier performance test of potato chip packaging in detail After ensuring this index, it is necessary to control the quality of other packaging indexes, such as packaging tightness, heat sealing performance, mechanical performance, printing quality, etc., so as to ensure the reliability of production quality