The three layers of the cold-stamping and forming hard sheet by blister machine, the outer surface supporting strength layer, the aluminum foil barrier layer, and the inner and outer surface heat-sealing layers are bonded with an adhesive to organically combine them.

To become a composite material, it is necessary to ensure that the exquisite blow molding force of the cold stamping forming hard film does not cause the layer to be commercialized and cracks from time to time.

The selection and application of the adhesive is very critical. Generally, the aluminum box and the external surface are required to be bonded after bonding.

The bonding strength of the strength layer and the heat-sealing layer is above 8N/15mm, and the ratio of the soft and hard sections of the nitrogen-coated ester adhesive flat molecular pin section should be controlled during the formulation design process;

the road should be cold for stamping requirements, it is difficult for general adhesives to meet the above requirements.

Therefore, the adhesives used in cold stamping forming hard sheets are usually specially formulated special adhesives.

The cold-injection type foam packaging ink has an outstanding appearance and extremely high barrier function.

However, the product has many different characteristics of other materials in the application process, and the following problems often occur during the application process:

The first type is the quality of cold stamping forming hard film made by capsule blister packing machine.

Cold stamping forming hard film is a product with extremely high technical content. It has many special requirements for the original material and blister packaging production process.