Thermoformed Inlays

Thermoforming blister is a special plastic processing method used to process thermoplastic sheets into various products. That is, heating the thermoplastic sheet to soften it, and then using pressure (vacuum or positive pressure) to make the thermoplastic sheet act on the mold surface to obtain a shape similar to the mold surface. After cooling and curing, the product is trimmed to obtain the desired shape. Thermoforming blister is fast and uniform, the molding cycle is short, and the mold cost is low. Suitable for automation and long-term production. It is considered to be the most cost-effective processing method among plastic molding methods.

The main types of thermoforming blister are: vacuum forming, pressure forming, plunger assisted forming and combinations thereof. There are more and more thermoformed blister products on the market, such as food trays, toys, helmets, auto parts and packagings for autoparts. Compared with injection molding, thermoforming blister has the advantages of high production efficiency, less equipment investment, and the ability to manufacture products with larger surface areas. The plastics used for thermoforming are mainly polystyrene (PS), polyvinyl chloride (PVC), polyolefins [such as PE, PP, polyacrylates (such as polymethyl methacrylate PMMA)] and cellulose [ Such as nitrocellulose (NC), cellulose acetate (CA), ] plastics, engineering plastics such as acrylonitrile-butadiene-styrene (ABS), polycarbonate (PC), etc. are also used. The research and development of high-performance PP with high transparency, high melt strength and low warpage has promoted the application and development of PP in the field of thermoforming and blistering.