The main manufacturing process of glass cosmetic packaging materials can be divided into: forming process, surface treatment process, graphic printing process and final assembly process. Among them, common processes for forming glass containers are hand blowing, machine blowing and so on.
Glass containers with hollow openings are formed, and the finished product is both decorative and functional. The selection of different glass materials directly determines the use of the product. There are two main methods for forming glass cosmetic jars, one is machine blowing and the other is manual blowing. Manual glass blowing is not limited by machines and molds, and has a very high degree of freedom in shape and color. Therefore, the finished product often has a high technical appreciation value. Artificial glass blowing is only suitable for small batches. Machine blowing is suitable for large batches. Compared with manual blowing, machine blowing has lower technical requirements for operators and lower labor costs.
(1) Put the glass clot with a high temperature of 1500 °C into the prototype mold, and blow air into the glass clot through the bottom piston to form a high-temperature hollow glass clot with an opening. The rudimentary mould is separated from left to right and the high temperature clot is transferred to a second blow mould.
(2) After the high temperature clot is transferred into the second blowing mold, gas is injected into the mold cavity through the top inflation piston, and the gas forces the high temperature glass clot to form close to the inside of the mold. After waiting for complete cooling, transfer it to the grinding and trimming process.
Glass cosmetic packaging containers are basically formed by machine blowing, and then subjected to surface spraying or electroplating, plus silk screen printing and other graphic processing processes to form finished products, and then they are used in the cosmetics industry.