The main purpose of composite packaging bags is to package food, medicine, etc. Therefore, the hygiene of composite packaging bags is an important indicator. With the improvement of national health regulations and the improvement of consumer awareness, its requirements will be further improved. What are the factors that affect the hygiene of composite packaging bags?(1) […]

Basic performance requirements of composite packaging bagsIn order to meet the required packaging requirements, the composite packaging bag should have the following properties:① Mechanical properties. Tensile strength, rigidity, wear resistance, sealing, elongation, friction, etc.② physical and chemical properties. Moisture and oxygen barrier properties, fragrance retention, oil resistance, chemical resistance, light protection, etc.③ Durability. Performance at […]

1. Specific requirements for food packaging bagsSince food packaging bags are the main use objects of composite packaging bags, there are many kinds and different requirements. The contents to be packaged range from raw to cooked, from low temperature to high temperature, from perishable fresh fruits to hard nuts, from vacuum packaging bags To inflatable […]

Almost every order of composite packaging bag products is a special product. The biggest influence on its design is whether the user has a comprehensive understanding of the function of the packaging bag, otherwise it is impossible to design a reasonable structure. The following factors should be considered in the design.① Requirements for the contents […]

1. Raw materials of composite packaging bagsWhether the source of raw materials is stable, and whether specific sources can be purchased, including various general film substrates, various functional substrates, various inks, adhesives, functional coating materials, various resins, additives, etc.Whether the price of raw materials is appropriate, what is the performance of substitutes, and whether the […]

1.Middle-sealed bags, bags with a sealing line in the middle of the back of the bagCommon materials:OPP+CPPAluminized,OPP+PE, OPP+PEmilk white, OPP+CPPorCPPAluminized.If it is a three-layer composite bag, the common combination isOPP+PET+CPPorOPP+PET+CPP. 2.Elevator bags, the domestic and Japanese markets use this kind of bag more, let’s know a little about it.Common material combination of composite packaging bags: […]

1.Kraft paper .Kraft paper is a paper produced by using sulfated wood pulp or sulfated wood pulp mixed with a certain proportion of other pulps through the papermaking process. It has high strength, high toughness, good burst resistance and water resistance, and is mainly used for wrapping commodities and making flexible packaging paper bags or […]

In the process of extrusion lamination or extrusion coating to produce flexible packaging composite materials, extrusion composite materials often have various quality problems, such as poor lamination and poor transparency, because these quality problems involve both the substrate and ink, Adhesives, even equipment and processes, climate environment and many other aspects, so effective quality control […]

1.The color tone of the printing ink for the composite packaging bag should use the same type of ink produced by the ink factory as much as possible, and the color saturation of the setting ink should be higher than that of two inks 2.If you want to use inks of several hues for color […]

1. The advantage of high strength: Due to the different characteristics of the composite material compared to the single-layer blown film material, the inner film of the composite packaging bag has strong puncture resistance and tear resistance. Vacuum packaging bags, tea packaging bags 2. The composite bag can be made into a packaging bag suitable […]