Why can the external spring structure design of the Liquid Foundation Pump avoid chemical reactions, extend the shelf life and improve the use experience?

In the packaging design of modern cosmetics and skin care products, the external spring structure of the Liquid Foundation Pump is gradually becoming a trend, especially in the packaging of oily and powdery liquid products. The core concept of this design is to avoid direct contact between the material and the metal spring to ensure the safety and stability of the product.
1. Avoid chemical reactions and ensure the purity and safety of the material
The external spring structure design of the Liquid Foundation Pump fundamentally solves the problem of chemical reactions that may be caused by the contact between the metal spring and the material. When the metal spring comes into contact with certain chemical components, oxidation or other chemical reactions may occur, which may change the chemical properties of the material and may also produce harmful substances, causing potential damage to the user's skin. By placing the spring outside the pump head, the material is completely isolated from the metal spring, completely avoiding the occurrence of such chemical reactions and ensuring the purity and safety of the material. This design protects the ingredients of the product and provides consumers with a safer use experience.
2. Extend the shelf life of the product and maintain product stability
The external spring structure of the Liquid Foundation Pump helps to extend the shelf life of the product. The contact between the metal spring and the material body may accelerate the deterioration process of the material body, especially in products containing oil components. The oxidation reaction of the metal spring may cause the oxidation and deterioration of the oil, shortening the shelf life of the product. The design of the external spring structure can effectively avoid this problem, so that the product remains stable during storage and use, and its shelf life is extended. This design ensures the long-term effectiveness of the product, reduces the waste caused by deterioration, and provides consumers with a more economical and environmentally friendly choice.
3. Improve the use experience and ensure smooth operation of the pump head
The design of the external spring structure also improves the use experience of the product. Due to the isolation of the metal spring from the material body, the pump head is smoother during use, and the normal operation of the pump head will not be affected by the oxidation or corrosion of the spring, ensuring the use effect and user experience of the product. This design makes consumers more convenient and comfortable during use, and also reduces the inconvenience and trouble caused by pump head failure. The design of the external spring structure also makes the pump head more durable, extends the service life of the product, and provides consumers with a more reliable and lasting choice.