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Types and characteristics of cosmetic tube


Tubes are divided into single-layer, double-layer and five-layer tubes, which are different in anti-pressure, anti-penetration and hand feeling. For example, five-layer tube is divided into outer layer, inner layer and two bonding layer, and another barrier layer. Features: good barrier, strong toughness, which can effectively prevent oxygen and gas infiltration, and prevent the content of the fragrance and effective components of the exudation. The gas inside the cosmetic tube has been removed, which accelerates the heat conduction, which can improve the efficiency of thermal sterilization, and also avoid the packaging container breaking due to gas expansion when heating sterilization. Cosmetic tube material is PVC (vinyl chloride), vinyl chloride monomers, in peroxides, azo compounds and other initiators or in light, heat under the free radical polymerization mechanism polymerization polymer. The vinyl chloride homopolymer and the vinyl chloride copolymer series are called vinyl chloride resins. The material is a kind of non-crystalline material. In the actual use of PVC materials, stabilizers, lubricants, auxiliary processing agents, color materials, impact agents and other additives are often added. It has no flammability, high strength, weather resistance and excellent geometric stability.PVC is very resistant to oxidants, reducing agents and strong acids. 

Cap has various shapes, generally including flat head cap, round head cap, high head cap, flip top cap, super flat cap, double layer cap, spherical cap, lipstick cap, plastic cap can also be processed on a variety of processes, gilding edge, silver edge, colored cap, transparent, spray oil, metalized and so on. Needle cap and lip gloss cap are usually equipped with inner plug. Tube cap is injection, tube is extruding tube, most tube manufacturers themselves do not produce tube and cap. 

Tube can be colored tube, transparent tube, colored or transparent matte, pearl tube, and matte or glossy tube. Matte tube is elegant but easy dirty. Difference of colored tube and tube with large printing area, you can judge them from the tube end, the tube end part color is white for large area printing, the demand for ink usage is high, otherwise the printing is easy peeling and cracking after folding and white mark.

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