Why is there a film in the kraft paper bag of food packaging ?
According to the material can be divided into:
A. pure kraft paper bags;
B. paper-aluminium composite kraft paper bags (kraft paper composite aluminum foil)
c: woven bag composite kraft paper bags (generally larger bags)
Three layers of white kraft paper bags: PP material can be used on the paper to spray a film, which plays a waterproof role; imported Canadian white kraft paper can be added with an inner membrane bag. It can also be color offset printing. In the form of seam bottom opening, it has the characteristics of environmental protection and sanitation. Multilayer kraft paper bags: There are imported white kraft paper and domestic white kraft paper, perfect composite material of white kraft paper and P P new material woven fabric. PE plastic bags can be added to the bags to meet the requirements of food grade. You can choose any package that suits you. Styles are: open seam bottom, open paste bottom, suitable for filling equipment paste valve pockets, seam valve pockets, etc. Valve pockets and open pockets are the main varieties of paper bags at present. They are also the packaging methods chosen by export enterprises.
Multilayer white kraft paper bags: (four-layer paper bags): high-strength packaging consisting of high-quality white kraft paper, the general outer layer using imported white kraft paper; the inner layer using imported yellow kraft paper; can also use four-layer yellow-white imported kraft paper; using kraft paper has high strength and good toughness; and can be one of the layers. Paper inside coated with waterproof film; waterproof and moisture-proof; can be lined with another layer of PE inner membrane bag, can use low-pressure or high-pressure inner membrane bag. The bottom and top of the bag are sealed by wrinkle paper seam or hot melt adhesive. This bag is mostly suitable for packaging: pigments, dyes, starch, food additives, plastics, chemical products, pharmaceutical raw materials, carbon black, etc.
Three-layer paper bag plus PE inner membrane bag: Canadian white kraft paper imported. Colour offset printing. In the form of seam bottom opening, it has the characteristics of environmental protection and sanitation. There are imported kraft paper and domestic white kraft paper, which can provide food-grade inner membrane bags. PE intima bag mainly plays a moisture-proof role. The product meets the requirements of food hygiene and contains the least micro impurities. It can be used for food commodity inspection, general commodity inspection and SGS ingredient detection. New plastics, log pulp kraft paper are uniformly used in the products. No recycled materials, nozzle materials and other recycled products are used to ensure high quality. Products can be used to package powder, granular, flake, block materials. Stacking neat, beautiful; belongs to green packaging products. Applicable packaging scope: pigments, dyes, starch, flour, food additives, plastics, chemical products, carbon black, etc.
