What are the reasons for the phenomenon of wrinkled edge sealing or sealing failure of aluminum foil packaging bag?
Aluminum foil packaging bag usually refers to aluminum plastic composite vacuum packaging bag. This kind of product is suitable for moisture-proof, light proof and vacuum packaging of large-scale precision mechanical equipment, chemical raw materials and pharmaceutical intermediates. It has good water and oxygen isolation functions. Aluminum foil bag (antistatic aluminum foil bag, aluminum foil packaging bag), product features and appearance: opaque, silvery white, anti gloss, good barrier, heat sealing, opacity, high temperature resistance, low temperature resistance, oil resistance, aroma retention; non-toxic and tasteless; softness and other characteristics. Product structure: PET / Al / PET / PE. Can be customized according to the requirements of different composite materials and thickness of products. Storage environment temperature ≤ 38 ℃, humidity ≤ 90%. 5. Product specifications: thickness 0.10 mm and 0.14 mm, three side seal, edge sealing 10 mm, product specifications and sizes can be customized according to customer needs.
The edge sealing of aluminum foil packaging bag directly determines whether the product can be sold. Many manufacturers have the phenomenon of edge wrinkling or sealing failure. Now, manager Han of hannuo plastic packaging will introduce the reasons for this?
For the edge wrinkle, the aluminum foil packaging bag manufacturer said that the reasons are usually:
1. Is the material is not heat-resistant enough, after high-temperature sealing ironing material wrinkle;
2. Is the glue and ink is not heat resistant enough;
3. Is the glue and ink in the residual solvent is too much, in the process of sealing and ironing agglomeration volatilization and bubble wrinkle phenomenon;
4. It is the parallelism of the heat sealing knife of the bag making machine, the soft hardness and flatness of the silica gel do not meet the heat sealing requirements, and there are foreign matters on the heat sealing knife
For problems that cannot be sealed, the reasons are usually as follows:
1. The quality of heat sealing material is poor, the sealing temperature is too high, or the heat sealing performance is unstable
2. Too low sealing temperature and pressure.
Dongguan aluminum foil packing bag: LLF
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