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Light isolation:
Light is one of the factors that easily causes quality changes in cosmetics. Certain wavelengths of light, especially ultraviolet light, can cause chemical changes in the active ingredients in cosmetics, affecting the quality and efficacy of the product. Therefore, the design of the cosmetic bottle suit needs to take into account the ability to isolate light. Due to its highly opaque nature, glass bottle sleeves can effectively block most of the light and are especially suitable for cosmetics that are sensitive to light, such as products with high antioxidant content.
Oxygen isolation:
Oxygen is one of the main factors causing oxidation reactions. For some easily oxidized cosmetic ingredients, such as vitamin C, the intrusion of oxygen may lead to changes in product color, smell and efficacy. Therefore, the selection of bottle sleeve materials and the sealing design of the bottle sleeve need to consider the oxygen isolation effect. Some high-end products often use materials with lower oxygen transmission rates, such as composite materials or metal materials, to minimize oxygen penetration.
Moisture-proof design:
For some cosmetics, especially lotions and cream products, moisture may cause texture changes, mold growth and other problems. Therefore, the cosmetic bottle suit needs to have certain moisture-proof properties. Plastic bottle sleeves usually have good moisture-proof properties, but in high-end products, materials with better sealing properties can be used, or moisture-proof agents can be added to improve the stability of the product.
Packaging structure design:
The overall structural design of the bottle sleeve also plays a key role in protecting the quality of cosmetics. For example, some perfumes or spray products containing volatile ingredients require a nozzle design to prevent oxygen from entering during use and ensure that the amount used each time can minimize the exposure time of the product. In addition, the design of the bottle mouth should also conform to the characteristics of the product, ensuring that users can access the product conveniently and accurately during use, while minimizing the contact between the product and the external environment.
Packaging material selection:
Different packaging materials have different effects on protecting the quality of cosmetics. In addition to the glass and plastic mentioned above, metal bottle sleeves are also commonly used in some high-end skin care products because metal has excellent oxygen isolation properties and also gives the product a unique texture. In addition, the selection of recyclable materials and environmentally friendly materials is also receiving increasing attention to meet consumer demand for sustainable development.
