As a common and widely used packaging method, blister packaging is widely used in various fields such as food, electronics, and medical due to its advantages such as lightness, transparency, and good formability. The following will introduce the production process of blister packaging products in detail
- Mold design and manufacturing
The first step in producing blister packaging is to design and manufacture the mold. The design of the mold needs to be based on the specific shape and size of the product. This step is very critical because the quality of the mold directly affects the accuracy and consistency of the final product. The mold is usually made of aluminum alloy or copper to ensure its durability and high precision. After the design is completed, the mold is processed by precision equipment such as CNC machine tools to ensure that it can perfectly realize every detail on the design drawing. - Material preparation
The main material of blister packaging is plastic sheet, such as PP, PVC, PET, and PS. Before production, these sheets need to be cleaned and preheated to ensure that no impurities affect the product quality during the molding process. The prepared sheets are loaded into the material rack of the blister machine to prepare for subsequent heating and molding. - Heating and forming
The plastic sheet is first fed into the heating zone and heated to a suitable temperature by an electric heating plate or infrared heater, making it soft and easy to form. The heated sheet enters the forming mold, and through vacuum adsorption or compressed air, the sheet is made to adhere to the mold surface to form the desired shape. In this process, the control of temperature and pressure is particularly important to ensure the consistency and quality of the product. - Cooling and demoulding
The molded plastic needs to be cooled to fix its shape. The cooling method can be natural cooling or forced cooling by air cooling or water cooling. After cooling, the molded product is removed from the mold and prepared for subsequent cutting and trimming processes. - Cutting and trimming
Use a cutting machine or punching machine to cut off the excess material of the molded product to obtain the final product shape. In order to ensure the beauty and safety of the product, the edges of the product are trimmed to remove burrs and excess parts. This step ensures the quality and beauty of the finished product of the blister packaging. - Quality inspection
In order to ensure that each batch of blister packaging products meets the standards, strict quality inspection is required. Through sampling inspection, check whether the size, shape and thickness of the product meet the requirements, and check whether there are quality problems such as bubbles, cracks, deformation, etc. Only qualified products can enter the next process. - Packaging and storage
The qualified products after quality inspection will be packaged, usually in plastic bags or cartons to protect the safety of the products during transportation. After packaging, the products are stored in a dry and ventilated warehouse waiting for shipment.
Conclusion
The production process of blister packaging products includes mold design and manufacturing, material preparation, heating and molding, cooling and demoulding, cutting and trimming, quality inspection, packaging and storage. Each link is crucial. Only by strictly controlling each step can high-quality blister packaging products be produced. With the continuous advancement of technology, the production process of blister packaging is also being optimized to meet the market demand for high-quality and diversified packaging products.