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The preform is the initial form of a plastic bottle. Processing it into a complete material requires many steps. Before making it, it is necessary to select its raw materials, including polyethylene, polyamide, polyoxymethylene, etc. When purchasing, you should also pay attention to choose according to your own requirements. So what are the specific material choices? 1. Polyethylene The English abbreviation of polyethylene is continuous spray bottles "PE". High pressure polyethylene has low crystallinity, low density and soft texture. Compared with low pressure polyethylene, it has higher transparency, excellent impact resistance and low temperature resistance, but it is not heat resistant.

The air permeability of low pressure polyethylene is worse than that of high pressure polyethylene, but the impact resistance is not as good as that of high pressure polyethylene. Both polyethylenes are prone to cracking under stress.

2. Polyamide The English abbreviation of polyamide is "pa". There are many types of polyamides. The chemical structure of polyamides varies depending on the synthesis method, and their properties are also different. However, their similarities and properties are similar. Polyamide has high crystallinity, high mechanical strength, good toughness, and good fatigue resistance.

The preform made of polyamide is easy to color and shape, and can be used for a long time at room temperature. However, its heat distortion temperature is low, its hygroscopicity is large, and its dimensional stability is poor. 3. Polyoxymethylene Polyoxymethylene (POM) is a highly crystalline material, referred to as POM. Polyoxymethylene is a very elastic material. It has strong chemical stability, impact resistance and creep resistance, and has high stiffness, strength and wear resistance. It is a common material.

The packaging of cosmetics should establish the design and direction of the brand in many factors such as aesthetics, creativity, packaging materials, and market positioning, and strive to stand out among similar products. As far as the color of the product packaging is conceed, the local cosmetics are full of oriental charm, and the products with deep oriental flavor and color packaging are more practical, quiet and natural in shape, bringing a subtle and charming oriental charm and reflecting the elegant oriental culture. . To enhance the product brand and create the brand image is our key consideration. When it comes to perfume, everyone knows some French brands. It can be seen that the influence of the brand is so great that one product can represent one. And these inteational product packaging adopts personalized characteristics, which are mysterious, unrestrained and lively.

Each is a finely crafted handicraft, which brings infinite inspiration and imagination. Although the local enterprises are all taking the inteationalization route, when the products of the national cosmetic packaging suppliers direct selling enterprises go the inteationalization route, they must organically integrate the nationalization characteristics into them. The first is cultural fusion, integrating the romantic and unrestrained design styles and concepts of Weste culture into the subtle and elegant oriental culture, breaking through traditional thinking pattes, and integrating

the new era, new century, and new brand. Product brand positioning needs to be clear and innovative. Positioning cosmetics as a product line of the company or building an inteational brand is a problem that national direct selling companies need to think deeply about. But what the author needs to emphasize is that when taking the way of an inteational brand, don't blindly follow the trend, thinking that everything is good for inteationalization, so that enterprises will lose themselves in the process of inteationalization. A bottle of cosmetics, a brand, representing a company, representing a national direct selling enterprise, this will be our goal.