Blister paper has a wide range of applications in many fields, and understanding its synthesis method is of great significance for related industries such as foreign trade.
The synthesis method of blister paper mainly involves several key steps. The first is material preparation. It is necessary to choose suitable plastic sheets. Common materials include PVC, PS, PET, PP and other materials, which are determined according to specific needs. For example, PVC material is relatively cheap and has moderate hardness and transparency; PET material has good toughness and is environmentally friendly, and is often used in food packaging. At the same time, other auxiliary materials such as cardboard need to be prepared.
The next step is the basic production of blister paper. Put the selected plastic sheet into the heating area of the blister machine and soften it by heating. The heating temperature is usually above the melting point of the plastic sheet. This step of temperature control is crucial. Too high or too low will affect the subsequent molding effect.
Then comes adsorption and molding. Place the heated and softened plastic sheet on the mold, start the vacuum pump, and use negative pressure to adsorb the plastic sheet on the mold surface. The shape of the mold determines the shape of the final blister paper product. At the same time, the bottom of the mold can provide auxiliary pressure to ensure that the plastic sheet fits the mold completely. After adsorption, the plastic sheet is quickly cooled by the cooling system to solidify. The cooling method can be natural cooling or cooling water circulation.
The final step is finishing. After cooling is complete, stop the negative pressure adsorption and open the mold to take out the formed blister paper product. For products with finishing requirements, cutting, drilling, trimming and other processes are carried out to meet the final quality standards.
The synthesis method of blister paper has certain requirements and skills in the process, but with the continuous development of technology, its synthesis process is also continuously optimized to meet the diversified needs of different industries.