The implementation of the updated national standards for food contact materials has raised stricter safety and environmental requirements for the plastic packaging industry. As regulatory supervision over food packaging safety continues to tighten, solvent-free polyurethane adhesives have become a core solution to help plastic packaging enterprises comply with the new food contact standards.
The new national standards impose stringent controls on harmful substance migration, residual solvents, aromatic amines and isocyanate residues in food-contact plastic packaging. Traditional solvent-based polyurethane adhesives contain high volatile organic compounds, which easily cause solvent residue and potential chemical migration, failing to meet the latest safety limits for food contact applications.
In contrast, solvent-free polyurethane features 100% solid content with no organic solvent added during production. It fundamentally eliminates VOC emissions and solvent residue risks, and effectively suppresses the precipitation of harmful substances. Its cured structure is stable enough to fully meet the migration and safety indicators specified in the new food contact standards.
Besides compliance advantages, the material delivers excellent bonding performance for PET, CPP, aluminum foil and other packaging substrates. It adapts to high-barrier and retort-resistant packaging demands for snack food, dairy products and ready-to-cook meals. Meanwhile, it simplifies production processes, cuts energy consumption and improves production efficiency, bringing obvious cost-saving benefits for manufacturers.
With the full enforcement of food contact regulations, the packaging industry is accelerating the replacement of solvent-based products. Solvent-free polyurethane will further expand market penetration, driving the plastic packaging industry toward safer, greener and high-quality development, and building a solid safety barrier for food consumption.
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