What are the commonly used materials for cosmetic containers?

Plastic bottles usually include PP, PE, K material, as, ABS, acrylic, pets, etc. It is usually used for injection molding of cream bottles, caps, stoppers, gaskets, pump heads, dust covers, etc. with thicker walls of cosmetic containers; PET blow molding is a two-step molding, the tube embryo is injection molding, and the finished packaging is blow molding . Others, such as lotion bottles and washing bottles with thin container walls, are blown bottles.

ABS is an engineering plastic, which is not environmentally friendly, has high hardness, and cannot be directly contacted with cosmetics and food. In acrylic cosmetic container packaging materials, the inner cover and shoulder sleeve are generally used. The color is yellow or milky white.

Polypropylene and polyethylene are environmentally friendly materials that can directly contact cosmetics and food. They are the main raw material for filling organic skin care products. The material is white and translucent. According to different molecular structures, three different degrees of softness and hardness can be achieved.

PET is an environmentally friendly material that can be directly in contact with cosmetic containers and food. It is the main raw material for filling organic skin care products. PET is soft and transparent in nature.

PCTA and PETG are environmentally friendly materials that can directly contact cosmetics and food. They are the main raw material for filling organic skin care products. The material is soft and transparent. PCTA and PETG are soft and easy to scratch, and are not often used in printing and printing.

AS is not high in hardness, relatively brittle (makes a crisp sound when tapped), transparent in color and blue in the background, which can be directly contacted with cosmetics and food. In ordinary lotion bottles and airless bottles, the material of the bottle body is generally. You can also make small-capacity cream bottles. It is transparent.

The acrylic fiber material is hard and transparent, with a whitish background. In order to maintain a transparent texture, acrylic is often sprayed on the outer bottle or painted during injection.

The PETG injection molding process is relatively stable and does not require a specially designed injection molding machine. Its injection temperature is only about 215℃~235℃, and the PC injection molding process is not easy to control. The injection temperature is as high as 280°C. In contrast, they can save electricity better. PETG is not easy to produce internal stress during the injection molding process, which is determined by their molecular structure and excellent ductility. PC is more prone to internal stress, one more post-processing program to eliminate internal stress. The internal stress of injection molded products is very harmful. The more serious one is stress cracking, which will increase unnecessary complaints or claims from customers.
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