At present, plastic hoses commonly used in cosmetic packaging mainly include aluminum-plastic composite hoses, all-plastic composite hoses and plastic co-extrusion hoses, which can meet various needs of cosmetic packaging, such as hygiene and barrier properties.
 
1. Aluminum-plastic composite hose
Aluminum-plastic composite hose is a kind of packaging container made of aluminum foil and plastic film through co-extrusion composite process, and then processed into a tube shape by a special tube making machine. Its typical structure is PE/PE+EAA/AL/PE +EAA/PE. The aluminum-plastic composite hose is mainly used for packaging cosmetics with high requirements on hygiene and barrier properties. The barrier layer is generally aluminum foil, and its barrier properties depend on the pinhole degree of the aluminum foil. With the continuous improvement of technology, the thickness of the aluminum foil barrier layer in the aluminum-plastic composite hose has been reduced from the traditional 40μm to 12μm, or even 9μm, which greatly saves resources.
 
2. All-plastic composite soft
All-plastic composite hoses are all plastic components, which are divided into two types: all-plastic non-barrier composite hoses and all-plastic barrier composite hoses. All-plastic non-barrier composite hose is generally used for the packaging of low-grade fast-consuming cosmetics; all-plastic barrier composite hose is usually used for medium and low-grade cosmetic packaging due to the side seam in the tube making, and the barrier layer can be EVOH, PVDC, oxide coating. Multilayer composite materials such as PET. The typical structure of the all-plastic barrier composite hose is PE/PE/EVOH/PE/PE.
 
3. Plastic co-extrusion hose
Plastic co-extrusion hoses use co-extrusion technology to co-extrude raw materials of different properties and types together and form at one time. Plastic co-extrusion hoses are divided into single-layer extrusion hoses and multi-layer co-extrusion hoses. The former is mainly used for fast-consuming cosmetics (such as hand creams, etc.) that have high requirements on appearance and low actual performance requirements. Packaging, the latter is mainly used for high-end cosmetic packaging.