Precautions for the advance processing of aluminum cosmetic tubes

Precautions for the advance processing of aluminum cosmetic tubes

Aluminum hoses are common packaging materials not only because they have relatively high sealing performance, oxidation resistance and corrosion resistance, but also because they can effectively block oxygen, odors, sunlight and ultraviolet rays. Most importantly, they are non-toxic and odorless. Therefore, it is widely used in cosmetic packaging, pharmaceutical packaging, chemical ointment packaging, etc., for filling hand cream, hair dye, glue, ointment, pigment, etc.

After the aluminum hose is formed by stamping, there are still multiple processing procedures such as internal spraying, primer, printing, tail glue application, tail sealing, and upper cover. But not all packaging aluminum tubes need to go through all these processes. Which processing procedure should be selected for aluminum hoses is determined by the characteristics of the contents to be filled and the requirements of the product design. Now, let's deepen our understanding of the processing procedures of aluminum hoses based on some daily questions.

Which products' aluminum hoses require internal spraying?

Answer: Products that are highly corrosive, sensitive and prone to deterioration, and can easily undergo chemical reactions with metals, such as adhesives with strong acidity. Because the primary material selected for internal spraying is epoxy phenolic resin, it can prevent corrosion, oxidation and falling.

2. Which products' aluminum tubes need to be primed?

Answer: The primary primer selected is full polyester resin, which forms a protective film on the surface of the aluminum tube to prevent oxidation and corrosion of the aluminum material. Aluminum tube packaging for cosmetics, hair dyes, etc., with primer applied, can enhance the printing effect.

3. Which products' packaging aluminum tubes need to be printed?

Answer: The main types of printing include offset printing, screen printing, etc. The choice is mainly based on the design requirements of the product. Cosmetics, pigments and other packaging, in order to be more beautiful, will all be printed to attract more customers.

4. Which products' aluminum tubes require tail glue?

Answer: The primary function of the tail glue is to enhance the sealing performance after tail sealing, prevent the leakage of the paste, block the contact between the contents and air and moisture, and ensure the shelf life of the paste. So, products that dry briefly, are relatively water-like and prone to leakage. For instance, when it comes to glass glue and cosmetics, tail glue needs to be added.

5. Which packaging aluminum tubes need double-layer tail folding?

Answer: Those quick-drying types of glass glue and AB glue. Double-layer tail sealing ensures better sealing performance.

Although the process of manufacturing aluminum tubes for medical use is not high-tech, to produce high-quality aluminum tubes for packaging, every step must be meticulous. Only in this way can the products after filling be perfectly presented to customers.