Anti-counterfeiting flexible packaging film material and preparation process thereof

By combining modified polyurethane, zinc-carboxylate cluster polyester and phosphorus-containing polysiloxane, the mechanical properties and anti-counterfeiting effect of the packaging film material are enhanced, solving the problems of material durability and anti-counterfeiting stability in the existing technology, and achieving a comprehensive improvement in high strength, durability and multi-dimensional anti-counterfeiting.

CN121609948APending Publication Date: 2026-03-06HUBEI YUNHE SALT IND PACKAGE
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Patent Information

Application Number
CN202512035230.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing packaging film materials are insufficient in terms of mechanical properties and long-term durability, making it difficult to simultaneously meet the requirements of high strength, durability, and stability. The durability and identification stability of anti-counterfeiting measures are also relatively poor.

Method used

By combining modified polyurethane, zinc-carboxylate cluster polyester and phosphorus-containing polysiloxane, the mechanical properties of the material are enhanced through physical crosslinking and inorganic-organic hybrid networks, and photoresponsive groups and fluorescent units are introduced to form a multi-dimensional anti-counterfeiting effect.

Benefits of technology

It achieves comprehensive tensile strength, durability and stability, possesses flame retardancy and heat aging resistance, and provides dynamic optical anti-counterfeiting function, ensuring that the material changes color under external force, thus improving the security and non-replicability of anti-counterfeiting.

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Abstract

The invention discloses an anti-counterfeiting flexible packaging film material and a preparation process thereof, belongs to the technical field of packaging material preparation, and aims to solve the technical problem that the anti-counterfeiting performance and the mechanical property of a packaging material in the prior art need to be further improved. Modified polyurethane, zinc-carboxylate cluster polyester and phosphorus-containing polysiloxane are synergistically compounded to construct a multi-scale structure with a flexible matrix, physical crosslinking and an inorganic skeleton, and the prepared anti-counterfeiting flexible package film has high strength and high ductility in mechanical properties and still keeps excellent stability after thermal aging; a phosphorus-silicon synergistic gas phase flame suppression and condensed phase vitrification barrier is formed in the aspect of flame retardance; the anti-counterfeiting packaging film has stable optical fingerprints under ultraviolet light in anti-counterfeiting performance and has reversible color change characteristics under the action of tensile stress, static and dynamic dual verification is realized, and the overall performance of the anti-counterfeiting packaging film is obviously superior to that of a conventional packaging film.
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