Knowledge about food packaging bags

The main materials used in the production of food packaging bags The main materials used in the production of food packaging bags are PP and PE materials. Of course, according to the needs of the packaged product itself, the required materials are also different. The packaging materials are selected according to the products to be packaged. For example, ordinary food can choose OPP/PE material and then make it into a composite bag for product packaging, similar products that need high-temperature cooking can choose PA/PE or CPP material, and food that needs refrigeration can choose PA/PE or CPP and other materials. For special products, you can choose multi-layer composite bags or aluminum foil bags. Each of the above materials has the functions of puncture resistance, oxidation resistance, easy printing, high transparency, moisture resistance, and oil resistance. Combining the characteristics of the above materials, you can make the most suitable packaging bags for your products. Note: PP: Polypropylene, polypropylene. PE: polyethylene, polyethylene. OPP: O-phenylphenol, o-phenylphenol. PA: Polyamide, polyamide fiber. CPP: cast polypropylene, cast polypropylene film. Sanitary performance of food packaging bags: including evaporation residue (acetic acid, ethanol, n-hexane), ** consumption, heavy metals, and decolorization tests. Evaporation residue reflects the possibility that residues and heavy metals will precipitate when food packaging bags encounter vinegar, wine, oil and other liquids during use. Residues and heavy metals will have adverse effects on human health. In addition, residues will directly affect the color and fragrance of food. , Taste and other edible quality. Degradability: 　According to the different types of degradation of the product, it can be divided into photodegradable, biodegradable, and environmentally degradable. Degradation performance reflects the product's ability to be accepted by the environment after use and disposal. If the degradation performance is good, the bag will break, differentiate and degrade by itself under the combined action of light and microorganisms, and eventually become debris, which is accepted by the natural environment; If the degradability is not good, it will not be accepted by the environment, thus forming 'white pollution'.　　 The inspection items of food packaging composite film bags are mainly divided into the following categories: 　　 The appearance should be smooth, free from scratches, scalds, bubbles, broken oil and wrinkles, and heat-sealed smoothly and without false seals. The film must not have cracks, pores and separation of the composite layer. There is no pollution such as impurities, foreign matter and oil stains. The bagged soaking liquid shall not have peculiar smell, peculiar smell, turbidity and discoloration.
Qingdao Supouches Packaging Ltd. has a great reputation on producing innovative products as the flexible packaging.
With continuous operational improvements, expanding capacity and a strong competitive position for serving strategic domestic markets, Qingdao Supouches Packaging Ltd. are positioned for long-term growth that will benefit our customers and investors.
With the market analysts, exports from Qingdao Supouches Packaging Ltd. facilities in China will surpass the forecast.
Qingdao Supouches Packaging Ltd. is a team of manufacturers who have 10+ year experience on creating business plans and other types of productions with top-tier management firms and various multinational corporates.
We began investing in our workforce and negotiated deals with major suppliers and providers to lower the cost of equipment so the technicians could enhance the competitiveness of flexible packaging right away.