Shampoo bottles and ordinary plastic bottles differ significantly in material, structure, and function.
In terms of material, shampoo bottles require materials with good chemical stability, compatible with surfactants, fragrances, and other ingredients in shampoo without reacting. Ordinary plastic bottles are mostly made of conventional polyethylene and polypropylene, prioritizing cost and practicality, without considering compatibility with cosmetic ingredients.
Structurally, shampoo bottles have sophisticated sealing structures, often using a combination of threads, a sealing gasket, and a pump head (or flip cap) to ensure a tight seal and easy access. Ordinary plastic bottles have relatively simple sealing structures, often using a single threaded seal or snap-on seal, sufficient for standard packaging needs.
Functionally, shampoo bottles are designed with different opening methods depending on the usage scenario, such as a press pump, flip cap, or twist cap, emphasizing ease of use. Ordinary plastic bottles prioritize storage functionality, with relatively simple opening methods.
Furthermore, shampoo bottle design prioritizes grip and aesthetics, while ordinary plastic bottles prioritize practicality and cost control.
