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Requirements for surface quality of foil aluminum bags for food

Requirements for surface quality of foil aluminum bags for food

(Summary description)With the improvement of material living standards, people pay more and more attention to food safety. Today, we will analyze the foil aluminum bags for food to see what the surface quality requirements of foil aluminum bags for food are?

Requirements for surface quality of foil aluminum bags for food

(Summary description)With the improvement of material living standards, people pay more and more attention to food safety. Today, we will analyze the foil aluminum bags for food to see what the surface quality requirements of foil aluminum bags for food are?

Information

With the improvement of material living standards, people pay more and more attention to food safety. Today, we will analyze the foil aluminum bags for food to see what the surface quality requirements of foil aluminum bags for food are?

foil aluminum bags

1. The surface shall be clean and flat, without corrosion marks and bruises, serious folds and folds, soft texture, not easy to break when folded, and good flexibility. The purchased aluminum foil shall be stored under dry conditions, not for too long, and shall be used as soon as possible.

2. The surface cleanliness of aluminum foil shall be high. There shall be no obvious yellow oil spots formed after the combustion of lubricating oil, no oil smell, and it shall reach grade A or B through water brushing test. The surface tension should be high, which should be more than 72Mn / m. A simple method is to use distilled water for inspection. Distilled water should be fully soaked on the surface of aluminum foil. If the oil stain on the surface of aluminum foil is serious, it will affect the composite firmness of aluminum foil and other materials, especially the peeling phenomenon of packaging bag after high-temperature cooking.

3. Oil stain and pinhole are the main detection indicators of products. Medicinal foil aluminum bags have high requirements for the physical, mechanical and chemical properties of aluminum foil. The number of pinholes in aluminum foil should be less. No matter how thick the aluminum foil is, the aperture of pinholes should not be greater than 20um.

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