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In the food industry, packaging is not only about the appearance of the product but also serves as an important barrier to ensure food safety. Especially for liquid foods like juices, ketchup, alcoholic beverages, etc., the choice of packaging materials and the performance of adhesives are particularly critical. Among the many packaging materials, aluminum-plastic flexible food packaging has gradually become the preferred packaging form for liquid foods due to its excellent barrier performance, low cost, light weight, and high printing adaptability. Behind this, polyurethane laminating adhesive plays an indispensable role.
In the production process of aluminum-plastic flexible food packaging, polyurethane laminating adhesive is crucial to ensure that each layer of film is tightly bonded. With its excellent bonding strength and heat resistance, it firmly laminates the multi-layers of PET, AL, PE films together, forming a solid packaging barrier. This barrier effectively blocks the intrusion of external oxygen, moisture, and microorganisms, thereby extending the shelf life of the food.
Liquid foods usually contain a large amount of moisture, small organic molecules, acidic and alkaline components, etc., which need to be in contact with the packaging material for a long time during the packaging cycle. This places higher demands on the polyurethane laminating adhesive used in aluminum-plastic packaging. It not only needs to have excellent bonding strength and heat resistance but also requires outstanding resistance to mediums and hydrolysis performance.
To tackle the challenges posed by liquid foods on aluminum-plastic packaging, polyurethane laminating adhesive has been continuously optimized in formulation and process. By introducing specific functional groups and additives, these laminating adhesives can effectively resist hydrolysis, swelling, and interfacial destruction, thereby maintaining its excellent bonding strength and heat resistance. At the same time, polyurethane lamination adhesive also has good processing performance and environmental performance, able to meet different production processes and environmental requirements.
As one of the leading laminating adhesive suppliers in the domestic high-performance polyurethane adhesive industry, COMENS has been committed to providing the highest quality polyurethane lamination adhesive for the food packaging industry. Our products including solvent based adhesive for flexible packaging, non solvent based adhesive and water based laminating adhesive, not only have excellent performance but also have a wide range of applications. Whether it is juice, ketchup, or alcoholic beverages, we can provide the most suitable polyurethane laminating adhesive solutions.
In today's world, where food safety is increasingly being emphasized, choosing a high-quality polyurethane laminating adhesive is crucial for ensuring food quality and safety. COMENS will continue to uphold the principle of "quality first, customer foremost" to provide better products and services to the food packaging industry.
