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Moisture-proof design is a crucial part of the manufacturing of cosmetic bottle suits, because moisture may cause bacterial growth, quality changes, and reduced stability for some cosmetics.
material selection:
The material of the cosmetic bottle suit has a direct impact on the moisture-proof performance. Some materials have good moisture-proof properties, such as high-density polyethylene (HDPE), polypropylene (PP) and other plastic materials. These materials themselves are not susceptible to moisture and can effectively reduce moisture intrusion. In addition, choosing materials with good sealing properties, such as plastics made by precision injection molding, can also enhance the overall sealing performance of the cosmetic bottle suit.
Sealing structure design:
The sealing structure of the cosmetic bottle suit is an important consideration in moisture-proof design. For example, the joint between the bottle cap and the bottle mouth needs to have good sealing properties to prevent moisture from penetrating into the bottle through the seams. Some high-end products may adopt a double-layer structure design, such as adding a rubber gasket or sealing gasket to the bottle cap to improve airtightness and prevent moisture penetration.
Addition of moisture-proof materials:
During the material preparation stage, manufacturers can add moisture-proof agents, such as silica, etc., to the cosmetic bottle suit material. These moisture-proof agents can absorb moisture from the surrounding environment and slow down the damage of moisture to cosmetics. This method is more common in some high-end cosmetic bottle suits, especially for products that are sensitive to moisture.
Packaging structure design:
The overall packaging structure of the cosmetic bottle suit is also an important aspect of moisture-proof design. For example, some bottle sleeves are designed with a special moisture-proof layer inside, which can be a coating, film or other material to isolate the cosmetics inside the bottle from the external environment. This design can effectively reduce moisture penetration and improve product stability.
cosmetic bottle suit shape design:
The shape design of the cosmetic bottle suit can also affect the moisture-proof performance. Some properly designed bottle sleeves can reduce the chance of moisture staying between the bottle mouth and cap, thereby slowing down the intrusion of moisture. In addition, the design of the cosmetic bottle suit should also take into account the moisture generated during product use to prevent moisture from being introduced into the bottle during product storage.
