A self-expanding gradient structure adhesive film for bonding paperboard to low surface energy foam materials and applications

Abstract

The present application relates to the technical field of packaging adhesive, in particular to a self-expanding gradual structure adhesive film for bonding paperboard and low surface energy foam material and application, the self-expanding gradual structure adhesive film comprises a first pressure-sensitive adhesive layer, an elastomer support layer, an expansion layer and a second pressure-sensitive adhesive layer which are sequentially laminated and bonded, the first pressure-sensitive adhesive layer is used for bonding with paperboard, the second pressure-sensitive adhesive layer is used for bonding with foam material, the expansion layer is expanded under the action of trigger to make the elastomer support layer support the first pressure-sensitive adhesive layer and the second pressure-sensitive adhesive layer to bond paperboard and foam material respectively, the self-expanding gradual structure adhesive film can stably bond paperboard and foam material with less pressure, and the material is not damaged, and the self-expanding gradual structure adhesive film has the advantages of easy operation and environmental protection.

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