With the continuous improvement of people's living standards, the requirements for high quality and diversification of food and its packaging are getting higher and higher, and cup yogurt has gradually penetrated into people's lives. Dairy products have complex components and are easily affected by temperature, oxygen, light, microorganisms, mechanical effects, etc., resulting in discoloration, oxidation, damage, and deterioration of the products, thereby shortening the shelf life. Therefore, the selection of packaging materials is particularly important. Enterprises now generally use aluminum foil to seal dairy products. The material is 8011-O aluminum foil, which is used after compounding with other materials.
The performance characteristics of 8011-O aluminum foil are as follows:
1. The surface is clean, uniform in color, no spots, flat and without pinholes;
2. It has excellent moisture-proof performance, light-shielding and extremely high barrier ability;
3. Multiple tests for bacteria, mold, etc., non-toxic, tasteless, safe and hygienic;
4. Strictly implement industry standards, and heavy metals do not exceed the specified range;
5. Strong mechanical properties, high blast resistance, puncture resistance and tear resistance;
The milk cover material has very high requirements on the cleanliness of the board surface. Use different types of dyne pens to conduct water brushing tests. According to the shrinkage of the liquid on the board surface, the dyne value is recorded and the cleanliness of the board surface is measured.
Aluminum foil yogurt packaging not only has good barrier properties and ensures the quality of the product, but while improving the grade of yogurt products, it must also ensure the convenience of opening by consumers. 8011 heat sealing foil has good surface quality, flat shape and small thickness tolerance. It is an ideal material for yogurt heat sealing packaging.
