Polyurethane soft packaging composite adhesive: Empowering the green upgrade of the packaging industry
2026,04,22
Polyurethane soft packaging
Composite Adhesive, as the core bonding material in the soft packaging industry, boasts excellent comprehensive performance and is widely used in various fields such as food, medicine, and daily chemicals, serving as the "invisible bond" that connects various packaging substrates and supporting the high-quality development of the soft packaging industry.
This type of composite adhesive is based on polyurethane as the core component and is classified into solvent-based, non-solvent-based, and water-based varieties. Among them, non-solvent and water-based products are accelerating the replacement of traditional solvent-based products due to their alignment with the environmental protection trend. It has extremely strong bonding toughness and can firmly adhere to various substrates such as PET, BOPP, and aluminum foil. At the same time, it has good flexibility, high-temperature resistance, and resistance to media, and can meet extreme packaging requirements such as high-temperature sterilization and freezing storage, ensuring the sealingity and barrier property of the packaging.
In the food packaging field, polyurethane soft packaging composite adhesive complies with food-grade standards, has low migration and low odor, and effectively safeguards the freshness of food; in the pharmaceutical packaging field, its asepticity and stability meet the requirements of GMP certification, safeguarding the safety of drugs. With the advancement of the "carbon neutrality" strategy and stricter environmental policies, the industry is accelerating its upgrade towards low-VOC and recyclable directions. Local enterprises are continuously increasing their research and development investment to push product performance towards international advanced levels.
Today, polyurethane soft packaging composite adhesive is not only a key material for packaging bonding but also an important support for promoting the green transformation of the packaging industry and enhancing product value. In the future, it will continue to make breakthroughs in functionality and environmental performance, adapt to more high-end packaging scenarios, and help the soft packaging industry achieve sustainable development.