宇塑包装pp塑料瓶厂家专业生产PP塑料化妆品包材,提供PP塑料化妆品包材加工定制,PP化妆品瓶批发供应,安全,环保,多年从业经验,品质保障,价格合理,。
宇塑包装pp塑料瓶厂家专业生产PP塑料化妆品包材,提供PP塑料化妆品包材加工定制,PP化妆品瓶批发供应,安全,环保,多年从业经验,品质保障,价格合理,。
Cosmetic bottles are divided into two categories: glass bottles and plastic bottles, and plastic bottles are usually made of PP, PE, AS, ABS, acrylic, PET and so on. Different cosmetics will choose different materials, like glass, acrylic, PP, PET is the common packaging materials for cosmetics.
Usually used for cosmetic containers with thicker wall cream bottles, caps, stoppers, gaskets, pump head, dust cover for injection molding; PET blow molding for two-step molding, tube embryo for injection molding, finished packaging for blowing. Other containers such as lotion bottles with thin walls, washing bottles for blow molding.
Injection molding: it is the use of injection machine screw or plunger to make the barrel of the melt, through the injection machine nozzle, mold pouring system, injected into the shape of the cavity and curing molding. Blow molding: it is the extrusion of molten plastic blanks, placed in the mold, with the help of compressed air blowing and affixed to the cavity wall, after cooling and hardening of the plastic parts.
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