In the cosmetics industry, the choice of packaging materials is crucial to the success of a product. Packaging not only affects the appearance and texture of a product, but is also directly related to the safety of the product and the consumer's experience. In recent years, PETG (polyethylene terephthalate-1,4-cyclohexanedimethanol) has gradually emerged as a high-performance environmentally friendly plastic in the field of cosmetic packaging, especially in the manufacture of cosmetic jars. Its unique material properties make it the preferred choice of many brands.
PETG material is known for its excellent transparency, with a light transmittance of nearly 90%, similar to acrylic (PMMA) and far exceeding polycarbonate (PC). This excellent transparency allows cosmetic jars made of PETG to clearly display the texture and color of the product, greatly enhancing the visual appeal of the product. For cosmetic brands that pursue exquisite appearance and high quality, PETG is undoubtedly an ideal packaging choice.
In terms of mechanical properties, PETG exhibits superior impact strength, which is 3 to 10 times that of modified polyacrylate materials, and has good flexibility. This feature enables cosmetic jars made of PETG to effectively resist impact and pressure, reduce the risk of breakage, and thus protect the integrity and freshness of the product. In addition, PETG has good weather resistance and can maintain stable performance under various environmental conditions, extending the service life of the product.
Chemical stability is another significant advantage of PETG. The material has good tolerance to a variety of chemicals and is not prone to chemical reactions. This feature ensures the quality and safety of cosmetics, avoids adverse reactions between packaging materials and cosmetics, and becomes the preferred material for cosmetic packaging.
The processing performance of PETG is also worthy of attention. The material can be formed by various processing methods such as injection molding and blow molding, has excellent fluidity, and is easy to accurately fill the mold. This feature allows PETG to be easily made into cosmetic jars of various shapes and sizes, meeting the brand's needs for packaging diversity and customization. At the same time, the processing process of PETG is relatively simple and low-cost, which helps to reduce the overall manufacturing cost of the product.
More importantly, PETG is an environmentally friendly material that meets food contact management requirements and is non-toxic and harmless to the human body and the natural environment. During the thermal processing process, PETG will not release unpleasant odors; when incinerated, it will not produce toxic gases; after landfill treatment, it will not pollute groundwater sources. These environmentally friendly characteristics make PETG an ideal choice to replace non-environmentally friendly transparent materials such as PVC, which is in line with today's society's pursuit of sustainable development.
In addition, PETG also has excellent secondary processing performance. The material can be easily processed by laser cutting, milling, die cutting, drilling, welding and other processing operations, and can be printed or sprayed without special corona treatment. This feature provides greater flexibility and creative space in the appearance design of cosmetic jars made of PETG, which can meet the brand's demand for personalized and differentiated packaging.