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Kraft Paper Valve Bag
Introduction to Multi-layer Kraft Paper Bags:
Kraft paper bags are divided into valve bags and open-end bags according to their appearance and shape. Among them, kraft paper valve bags are currently internationally popular packaging bags. Such bags are fed from the valve top, which is convenient for filling materials, and the sealing is simple and easy, which reduces the filling cost and improves the filling efficiency. After being filled with the material, the bag is in cubic shape. The valve bags are the most suitable packaging solution for enterprises with automatic filling machines. Besides, they are suitable for stacking transportation, the stacking of such bags is neat and beautiful, which are easy to be transported, with high strength, low damage rate, thereby greatly improving the reputation of the product. The kraft paper valve bags can be divided into upper opening kraft paper valve bags and lower opening kraft paper valve bags according to the opening. Our company can produce 1-5 layers kraft paper bags. According to different requirements of customers, we can provide different types of paper bags: square bottom valve bags, outward extension opening, inward extension opening, PE lining moisture-proof film, PE coated paper, imported and domestic paper, white and yellow paper, M-folded, air-permeable hole, seam bottom, hot melt sealing bottom, etc. Kraft paper bags are mainly used to pack food powder, chemical powder, fertilizer, synthetic materials, explosives, grain, salt, minerals and other powder or granular solid materials and flexible goods, especially suitable for export enterprises, which can improve the packaging grade of products.
Bags of various specifications, models, and appearances are described below.
√A: Three-layer Kraft Paper Valve Bag
Three-layer kraft paper valve bag is the most commonly used packaging bag at present. Such bags are fed from the valve top, which is convenient for filling materials, and the sealing is simple and easy, which reduces the filling cost and improves the filling efficiency. After being filled with material, the bag is in cubic shape. The valve bag is the most suitable packaging solution for enterprises with automatic filling machines. According to customers’ requirements or product characteristics, our company can produce 1-5 layers of kraft paper valve bags, to provide you with the best choice.
√B: Kraft Paper Open-end Square Bottom Bag
Kraft paper open-end bags, also known as open-end and pasted bottom bags, are prevalent in the food and additive industries in foreign enterprises. Domestic foreign-funded enterprises and export enterprises have begun to adopt such bags in succession. Kraft paper open-end bags are filled by traditional filling machines. After filling, the upper part can be sewn with thread, and the stacking of such bags is neat and beautiful. The full-paper open-end square bottom bags are environment-friendly packaging bag products. They are suitable for packaging dyes material, starch, flour, food additives, plastics, chemical products, carbon black and so on.
√C: Kraft Paper M-folded and Seamed Bottom Bag
Kraft paper M-folded and seamed bottom bags, usually with both M-folded sides, are wholly made of kraft paper or stretchable paper, also, they can be made of paper and PE. They are widely used in China at present. This kind of bag is fed directly from the top and the open is needed to be seamed after filling. It is suitable for packaging food additives, plastics, chemical products, etc.
√D: Kraft Paper Hot Sealing Bottom Bag
The kraft paper hot sealing bottom bag has the characteristics of seamless, pollution-free, fully sealed and anti-caking. Its filling and sealing are extremely convenient and suitable for large-scale pipeline operation. After being filled with materials, the bag basically has a cuboid shape, so the stacking of such bags is neat and beautiful. They are environment-friendly paper bag and are suitable for export enterprises.
√ E: Kraft Paper PE Lined Bag
Kraft paper PE lined bag has a moisture-proof PE film in the middle of kraft paper layers. PE film can be placed in the middle of the paper layers or in the innermost layer, and the main purpose is to increase the moisture-proof effect of the bag. PE lined bags can be perforated to increase the air permeability of the bags. Such bags are also the packaging solution commonly used by many enterprises at present.
√F: Kraft Paper Moisture-proof PE Coated Bag
For kraft paper moisture-proof PE coated bag, the kraft paper is coated with PE film on the surface by special technology and equipment, by this way, the kraft paper is combined with PE film, which also has a good moisture-proof effect on packaging products. According to customers’ requirements, it can be made into valve bags, open-end bags, etc.
√G: White Kraft Paper Bag
White kraft paper bags are made of high-grade paper with good toughness and air permeability. According to the special requirements of customers, the white high permeability paper which is adopted can help users solve the problem of product packaging, and can improve the packaging grade of products.