Is polyurethane adhesive suitable for the flexible packaging industry

The flexible packaging industry has extremely high requirements for the environmental friendliness, bonding stability and compatibility of adhesives. Polyurethane adhesives, with their diverse advantages, have become one of the preferred solutions in this industry. From the perspective of environmental protection trends, solvent-free polyurethane adhesives have low VOC content and no formaldehyde addition, which can prevent solvent residues from contaminating the contents of the packaging. They meet the green and healthy requirements for flexible packaging of food and medicine and also conform to the global environmental protection policy orientation.

 

In terms of performance compatibility, polyurethane adhesives have a wide range of applications and can meet the composite requirements of various common flexible packaging substrates such as NY/PE and PET/Al. They also have excellent leveling and peel strength. After curing, they bond firmly and can withstand different usage scenarios such as cooking and refrigeration. Some specialized models can also achieve high-speed lamination, with less glue application, effectively reducing the production energy consumption and costs of enterprises.

 

It should be noted that when selecting, it is necessary to match the production equipment and product requirements. For example, for solvent-free types, a dedicated coating system should be adapted. Overall, with the upgrading of environmental protection requirements and technological iterations, polyurethane adhesives not only meet the core performance demands of the flexible packaging industry but also conform to the high-quality development direction of the industry. Their adaptability is beyond doubt.