Valve mouth packaging bag composite flexible packaging material Z to be made into a variety of packaging bags can be used. There are two ways to make bags, one is the use of packaging manufacturers using film in automatic packaging machine filling, and molding packaging into a variety of bags; The other is due to the bag-making mechanism into a variety of packaging bags and then fill the contents. Because the professional bag control is accurate, the bag type is beautiful, the bag changes greatly, the bag type is many, therefore, in quite a lot of cases, the bag is made first. The main varieties of bags are: three-sided sealing bags (palm sealing bags), back sealing bags, folding (organ bags), upright bags and so on.
Properties of different materials together, to improve the permeability of packaging materials, moisture permeability, oil resistance, water resistance and drug resistance, make it play a insect-resistant, dustproof, microorganisms, light, sweet, smelly odor such as isolation, as well as heat, cold resistant, impact resistance, better mechanical strength and processing performance, and have good printing and decoration effect.
According to the form of packaging classification: three side sealing, Yin and Yang bag, seal, pillow bag, five side sealing bag, independent bag, zipper bag, straw bag, roll, cover material, etc
According to the function classification: high Yin diaphragm bag, cooking film bag, antistatic film bag, antibacterial film bag, anti-fogging film bag, vacuum bag, anti-chemical film bag, deoxygenation packaging film bag, air-adjusted packaging film bag, etc
According to the material classification: laser aluminum film cladding material, laser transfer paper material, paper composite material, aluminum composite material, plastic composite material, fabric composite material, etc.
Classified by shape: vest bag, straight tube bag, three-dimensional bag, square bottom bag. Sealing pocket, rubber strip bag, shaped bag, etc.
Plastic bag includes plastic woven bag and plastic film bag. The former has the characteristics of light weight, high strength, corrosion resistance and so on. The weight of light bag is less than 2.5kg, the weight of medium bag is 25-50kg, the weight of heavy bag is 50-100kg. The latter light bag carrying weight in more than 1kg; Medium bag carrying weight 1-10kg; Heavy bag load 10-30kg; Container bag carrying capacity of more than 1000kg. Valve port bag
