How to protect the safety and quality of food in food packaging bags

First, food packaging bags should meet the food safety quality requirements. 1. The food company should request the packaging bag production company to use the packaging film that conforms to the national regulations. For example, the information of the composite bag should be green and environmentally friendly. Do not use dry composite plastic packaging containing harmful substances such as benzene, because the solvent is simple to soak the contaminated food. 2. The food packaging bag should be flat. No scratches, burns, bubbles and wrinkles, no voids. Flatness is not only a beautiful request, but also about the quality of the food. If the bag is not flat, the food package for high-temperature cooking or low-temperature freezing is simply cracked. 3, print to use green environmental protection materials. The QS specification requires that food packaging should not detect benzene solvents that are harmful to human health. However, since benzene solvents are 30% lower than environmentally friendly benzene-free and ketone-free solvents, and the brilliance and color fastness are good, many This type of information is also used in the printing of packaging bags, and there are often questions about contaminated food. 4. The packaging company that manufactures food bags should pass the production environment to prevent contamination of the food bags during the bag making process.

The second is to adapt food packaging to food companies. The packaging bag production company should select appropriate packaging materials and processing technology according to the food company's product packaging requirements to prevent customers from adding unnecessary capital. Taking the grain packaging bag as an example, many miscellaneous grain production companies are now requesting the use of beautiful, fresh-keeping vacuum plastic packaging. Some companies have chosen composite bags to keep the money low. However, in fact, the quality of the function of the multi-layer coextrusion data package of the multi-grain package is the same as the composite. Since the thickness of the composite material reaches 100 microns, and the thickness of the multi-layer coextrusion data reaches 90 microns, the puncture resistance, softness, and freshness are up to the quality request, and since the data is applied by hot melt technology, no stick is used. Mixture, food safety is guaranteed.

    Third, the packaging film should conform to the national regulations and cannot be refilled. Food companies must first understand the needs of their own food packaging bags; the second is to find a standard packaging company for custom processing. Due to the lack of expertise in packaging materials and the simple pursuit of price hikes, some food company personnel have been fooled from time to time. Taking compound bags as an example, many foods are used for vacuum packaging. The information on such bags should be at least one layer of nylon. However, some composite bags on the market are cut corners, there is no nylon material, but polyester plastic (PET) is used. Because nylon materials are twice as expensive as PET. The result is that the bag is very brittle and not soft, and the puncture resistance can be weak. The food package leaks and breaks the bag, which is not worth the loss. The economic loss and negative impact are much higher than the cost saved by the purchase price of the bag. For example, the seven-layer co-extruded packaging bag of the new packaging materials should be at least two layers of nylon, but some use one layer, and the nylon content is low, and some also use smuggled garbage materials, and more questions. These bags have poor barrier properties, are easy to crack, and are not resistant to high and low temperatures. There is still a situation in the market where aluminum foil bags are sold to food companies as aluminum foil bags, and they need to be identified in time to prevent being deceived.

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