Learn about freeze-dried food packaging materials

Freeze-dried foods have become a new type of processed food that has become popular all over the world. Before the food is freeze-dried, it can be processed or eaten by simply restoring the original color, smell, and taste of the food after it is sprayed. Freeze-dried foods can be easily reconstituted, and the color, aroma, and taste of fresh foods are retained as much as possible, and at the same time, the original nutrients and physiologically active ingredients of foods are also retained. Therefore, freeze-dried foods have now become high-quality fast-food convenience foods, which make many functional foods or high-grade foods use freeze-dried food materials, and also make freeze-dried foods become high value-added foods or raw materials. What are the main packaging materials for desiccants?

Domestic and international common desiccant packaging materials are mainly divided into: domestic ventilation paper (filter paper) category, non-woven fabrics, composite paper, textured paper and the United States DuPont's Tyvek (Tyvek).

The filter paper can be used for small-size silica gel desiccant packaging, which is used for the packaging strength is not enough and easy to leak powder, good air permeability; composite paper permeability is poor, resulting in slow moisture absorption, generally not suitable for moisture-proof packaging of electronic products; The strength, but also has good air permeability, but for packaging montmorillonite, easy to leak powder; mesh paper permeability, high strength, good dust resistance, wide applicability, price higher than ordinary composite paper, but far Far lower than DuPont paper, it is an ideal choice for high-end packaging materials. Tyvek is an ideal material for a variety of desiccant packaging, featuring high strength, folding resistance, tear resistance, anti-static, and good air permeability. Also has excellent weather resistance and chemical resistance, dust-free design for packaging desiccant, both good air permeability, but also has sufficient strength and beautiful printing effect, the only drawback is the high price.