How does Powder Packaging Film And Bag effectively block oxygen to maintain the quality and taste of food powder?
Publish Time: 2024-11-12
Powder Packaging Film And Bag plays a vital role in blocking oxygen, because the presence of oxygen will cause oxidation, deterioration, loss of nutrients and decreased taste of food powder.1. Material selectionHigh barrier materials: Select materials with high oxygen barrier properties, such as aluminum foil (AL), ethylene-vinyl alcohol copolymer (EVOH), polyamide (PA), etc., which can effectively block oxygen penetration.Composite materials: Use multi-layer composite material structures, such as PET/AL/PE, PET/PA/PE, etc., to achieve higher oxygen barrier properties through the combination of different materials. Among them, PET (polyethylene terephthalate) provides mechanical strength, AL (aluminum foil) provides high barrier properties, and PE (polyethylene) provides heat sealing properties.2. Structural designMulti-layer structure: Design a multi-layer structure packaging bag, usually including an outer layer, an intermediate barrier layer and an inner layer. The outer layer is usually PET or OPP (biaxially oriented polypropylene), which provides aesthetics and mechanical protection; the middle barrier layer is AL or EVOH, which provides high oxygen barrier properties; the inner layer is PE or CPP (cast polypropylene), which provides heat sealing performance and food contact safety.Anti-puncture design: Add an anti-puncture layer, such as PA (polyamide) or EVOH, to the design of the packaging bag to prevent hard particles in the food powder from puncturing the packaging bag and avoid oxygen from entering.3. Process technologyHigh-temperature cooking sterilization: For food powders that require high-temperature treatment, a high-temperature cooking sterilization process is used to ensure that the packaging bag can maintain good oxygen barrier properties at high temperatures.Vacuum packaging: During the packaging process, vacuum packaging technology is used to extract the air in the packaging bag and fill it with inert gas (such as nitrogen or carbon dioxide) to further reduce the oxygen content and extend the shelf life of the food powder.Heat sealing technology: Use efficient heat sealing technology to ensure the sealing and airtightness of the packaging bag and prevent oxygen from entering the interior of the packaging bag through the heat seal.4. Testing and monitoringOxygen permeability test: After the production of the packaging bag is completed, the oxygen permeability test is carried out to ensure that the oxygen barrier performance of the packaging bag meets the standard requirements.Packaging integrity test: Through packaging integrity tests, such as sealing strength test, gas leakage detection, etc., ensure the sealing of the packaging bag during transportation and storage to prevent oxygen leakage.5. Storage and transportationLight-proof storage: Food powder should be stored in a light-proof environment to avoid oxidation reactions caused by light and slow down the deterioration process of food powder.Suitable temperature and humidity: Control the temperature and humidity of the storage and transportation environment to avoid high temperature and high humidity causing moisture absorption, agglomeration and deterioration of food powder.Anti-extrusion and collision: During transportation, anti-extrusion and collision measures are taken to prevent the packaging bag from breaking or deforming, causing oxygen to enter.6. Sustainability and environmental protectionDegradable materials: Choose degradable or recyclable packaging materials to reduce environmental pollution while ensuring high oxygen barrier performance.Green process: Adopt environmentally friendly packaging processes and production technologies to reduce energy consumption and waste generation, in line with the requirements of sustainable development.Through the selection of high barrier materials, multi-layer structure design, advanced process technology, strict testing and monitoring, suitable storage and transportation conditions, and the comprehensive application of sustainability and environmental protection measures, Powder Packaging Film And Bag can effectively block oxygen and maintain the quality and taste of food powder.
