Standby bag suction nozzle supporting products Standby bag material selection
Standby bag suction nozzle supporting products Standby bag material selection
Composite material selection
The self-supporting bag has higher requirements on the mechanical properties of the material, so it generally adopts multi-layer composite film.
1, the outer
The outer layer is the printing material. At present, the commonly used vertical bag printing material on the market is cut in addition to the ordinary OPP, as well as PET, PA and other high strength and high barrier materials, which can be selected according to the situation.If used to package dried fruit solid products, you can choose BOPP, extinction BOPP and other common materials.If the packaging of liquid products, generally choose PET or PA materials.
2. The middle layer
The middle layer is usually made of materials with high strength and high barrier, such as PET, PA, VMPET, aluminum foil, etc.And RFID, requires the surface tension of the intermediate layer material to meet the composite requirements, must have a good affinity with the adhesive.
3, the inner layer
The inner layer is heat sealing layer. Generally, PE or CPE, CPP and other materials with strong low temperature heat sealing performance are selected.It is required that the surface tension of the composite surface should meet the composite requirements, but the surface tension of the hot cover must be less than 34Mn /m, and it must have good anti-pollution ability, anti-static ability and heat sealing.
Shenyang tensheng plastic packaging co., LTD., founded in 1998, specializes in the production of plastic products for more than 20 years, the main products are plastic suction nozzle, plastic candle containers, rice bag handles and wet towel covers.Customers are distributed in domestic and foreign regions.We have a professional production team and after-sales team, for your order escort.Welcome to consult.We are always at your service.
