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Raw material selection and quality control
The core raw material of acrylic cream jar is acrylic resin, and its chemical name is polymethylmethacrylate (PMMA). In the selection process of raw materials, it is necessary to focus on the purity of the resin, molecular weight distribution, and the types and contents of various additives added. High-purity acrylic resin not only ensures excellent transparency and gloss of the final product, but the uniformity of molecular weight distribution also significantly improves the toughness and strength of the product. The reasonable selection and appropriate addition of additives have an important impact on the weather resistance, chemical corrosion resistance and processing performance of the product.
In order to ensure the high quality of raw materials, we have established long-term and stable cooperative relationships with our suppliers and conduct regular sampling testing and performance evaluation of raw materials. In addition, based on the specific needs of customers and the actual application scenarios of the product, we will make targeted selection and adjustment of raw materials to ensure the superior performance of the final product.
Material pretreatment and drying
In the processing of acrylic resin, pretreatment and drying are indispensable and important steps. The resin needs to be fully dried before processing to remove moisture and volatile substances. This process not only improves the processing performance of the material, but also effectively avoids defects such as bubbles and cracks during processing.
We use hot air drying and vacuum drying to pretreat acrylic resin. During the hot air drying process, the appropriate drying temperature and time need to be controlled to prevent the material from decomposing due to overheating. In comparison, vacuum drying can remove volatiles from materials more efficiently, but it also requires precise control of the vacuum degree and drying temperature to ensure the integrity and performance of the material.
Material mixing and proportioning
In order to meet the needs of different customers and the diversified applications of our products, we sometimes need to mix and proportion acrylic resins during the production process. This process includes the mixing of resins with different molecular weight distributions and the addition of different types of additives.
In the process of mixing and proportioning, it is crucial to strictly control the proportion of each component and the uniformity of mixing. Any inaccuracies in proportions or uneven mixing can result in inconsistent performance of the final product. Therefore, we use advanced mixing equipment and processes to ensure uniform mixing and accurate proportioning of materials to achieve optimal product performance.
Temperature control during material processing
The processing temperature range of acrylic resin is relatively narrow. Too high or too low temperature will lead to a decrease in material performance. Temperature control during processing is particularly important.
Injection molding is the main processing method for the production of acrylic facial cream jars. During the injection molding process, we accurately adjust the temperature, pressure, injection speed and other parameters of the injection molding machine according to the type and thickness of the material. This process not only ensures the uniform flow and rapid solidification of the material, but also effectively avoids defects such as deformation and bubbles in the product during processing.
Temperature control is also crucial during subsequent processing steps such as hot embossing and coating. During the hot embossing process, the temperature and heating time of the mold need to be strictly controlled to ensure that patterns and text can be clearly imprinted on the material surface. During the coating process, proper control of the temperature and drying time of the coating will help the coating adhere evenly to the material surface and form a good protective film, thus improving the overall quality and market competitiveness of the product.
