What are the concerns of water-based adhesives for composite packaging films?

What are the concerns of water-based adhesives for composite packaging films? There are mainly two types of water-based adhesives for composite packaging films: water-based polyurethane adhesives and water-based acrylic adhesives. 1. It does not pollute the environment and is conducive to environmental protection; 2. It can be used on medium and high-speed laminating machines (the existing laminating film production line using solvent-based adhesives in food packaging plants can be used directly without equipment modification and additional investment. ); 3. There is no solvent residue, and the transparency of the composite film is high; 4. The composite strength of the aluminized film is good, and it will not cause damage to the aluminized layer, nor will it cause the transfer of the aluminized layer; 5. The amount of glue applied is small ( can be as low as 1.6g/m), and its comprehensive cost is not higher than that of existing solvents; 6. It has good adaptability to alcohol-soluble inks. More knowledge of composite packaging film: www.yltpacking.com Customized packaging film