A beautiful packaging, in addition to the appropriate bag shape, and then its exquisite printing quality, of course, safety and environmental protection is the premise. With the continuous development of plastic packaging market, plastic packaging bags should not only be functional packaging, people pay more and more attention to the quality and beauty of printing. Here on the plastic bag classification knowledge, soft bag people must know.
1. According to the composite form, it can be divided into single-layer plastic bags and composite plastic bags. Single layer plastic packaging bag, mainly PE plastic film, there are also heat sealing grade BOPP. Features of single layer plastic bag: 1) low price. 2) Surface printing process is adopted. 3) As the ink on the surface of the substrate, relative to gravure printing composite plastic packaging bag, easy to fade. 4) It is mainly used in clothing packaging bags and ordinary food packaging. 5) It belongs to low-end packaging. The characteristics of composite plastic bags are as follows: 1) the price is higher than that of single layer plastic bags. 2) Use image gravure printing. 3) Because of its gravure printing, the printing ink is located on the inner side of the substrate, and then compounded, so as not to cause color discoloration due to friction, oxidation and other problems, which is much longer than the surface printing of single-layer plastic bags. 4) Composite plastic packaging bags are widely used in food industry, chemical industry, daily necessities and so on. They are used more and more widely for their exquisite printing and function enhancement. 5) It belongs to medium and high-end packaging.
2. According to the packaging function, it can be divided into three layers: BOPP / PET / PE, BOPP / wmpet / PE, BOPP / PE, which can be used in most packaging, such as jujube packaging bag, brown sugar packaging bag, seasoning packaging bag, dried fruit packaging bag, candy packaging bag, roast duck packaging bag, roast chicken outer packaging bag, chicken leg outer packaging bag and so on. Other packaging materials can also be customized according to customer requirements. Special packaging bags: ① for example, if the rice packaging bag, millet packaging bag, seed packaging bag and pet coarse grain packaging bag are more than 2kg, BOPA / PE or PET / BOPA / PE are recommended. BOPA has strong tensile strength, high oxygen resistance and soft texture. ② High temperature cooking packaging bags: including marinated egg packaging bags, roast chicken inner packaging bags, roast duck inner packaging bags, roast pigeon inner packaging bags, chicken legs inner packaging bags and other cooked food inner packaging bags, BOPA / rcpp is mostly used, because both BOPA and rcpp have high temperature resistance, and there are no problems in 121 ℃, 30 min, 131 ℃ and 30 min high temperature. Some customers will adopt BOPA / Al / rcpp to reflect the grade of packaging products. ③ Chemical product packaging bag: including pesticide packaging bag and chemical corrosive product packaging bag, mostly using PET / BOPA / Al / CPP. However, due to the use of anti-corrosion glue composite, CPP still has a certain air permeability. If the corrosive liquid contacts the anti-corrosion glue through CPP, it may cause delamination. ④ Washing products: washing powder packaging bag and detergent self-supporting bag suction mouth bag, washing powder packaging bag is mainly BOPP / Opal PE, and some customers use BOPP / PET / Opal PE.
3. According to the bag shape, the self-supporting packing bag, self-supporting zipper bag, three side sealing zipper bag, self-supporting suction mouth bag, special-shaped bag, ordinary three-sided seal, back seal pillow bag, five side seal and middle seal bag.
Dongguan Beite packaging materials Co., Ltd. - located in Dongguan City, the world's manufacturing city, is a subsidiary of Beite packaging (China) Co., Ltd., with a plant area of 6000 square meters. It is a flexible packaging enterprise integrating R & D, production and sales. It has a complete set of domestic advanced production equipment, a scientific and humanized management system and a group of experienced technical personnel For backing, to provide customers with quality products and first-class service.
The company produces composite bags, roll film, fruit bags, aluminum foil bags, suction mouth bags, self-supporting bags, zipper bags, anti-static bags, special-shaped bags, etc., which are suitable for the internal and external packaging of food, daily chemicals, electronics, toys, medicine, cosmetics, industrial products and other industries.
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