Cosmetics packaging production thread comprehensive analysis

Today the world's most popular thread profile of thermoplastic thread cover for 'rotation' and 'better off' two types.
they don't have good thread and the bad. They each shape has its own advantages and disadvantages, the choice of their usually determine their end use.


there are two types of thread cover feature description is as follows:




different tooth 'threads' rotary deep cover feature








rotary screw thread cover deep profile









in the process of plastic injection forming, mold has a rotating device system. This movement can effectively protect the integrity of the cosmetics packaging production cap screw tooth. So the cosmetics packaging production cover thread shape can be effectively controlled, and cosmetics packaging production cover wall in cosmetics packaging production on the tibia in thread will not tilt.

the cover in the cosmetics packaging production operation process, cosmetics packaging production cover on the thread in the shank cosmetics packaging production can be improved with the vertical force, to compress the cosmetics packaging production cushion against cosmetics packaging production shank.

due to rotating tooth thread cannot effectively limit the cosmetics packaging production cover gasket illustrations fall off, so the screw cap add glue paste when cushioned.




rotary deep thread cover the disadvantages of the






this type of thread to add multiple liner is not ideal.

thread cover limits the cosmetics packaging production cover design ( For example is blocked thread cosmetics packaging production cover was rotating in the mould) 。 Threaded cap mould, of course, when the design is more complex, more costly when the manufacturing cost.

when deep thread cosmetics packaging production cover for there are no restrictions on the choice of raw materials.




distinctive 'strong refloating screw tooth' cosmetics packaging production cover feature




















strong shallow teeth cosmetic packaging production cover section






in the process of injection molding, cosmetics packaging production cover can easily parting of the mould, do not need to mold spins. Obviously, in the design of cosmetics packaging production cap screw tooth thread to shallow to allow 'better off' in the injection molding process, and to have a moderate enough thread to the thread can very good ground cover to cosmetics packaging production shank on the thread.

strong to take off the threaded cap don't have to add glue paste when add liner, liner can get effective thread limit production of cosmetics packaging cover gasket legend is not easy to fall off.

to add multilayer liner to cover or to cover a variety of possible designs, Such as being blocked thread types of cosmetics packaging production cover) Strong, take off whorl is the primary choice.

strong to take off the threaded cap have restrictions on raw materials in the process of injection molding processing, poly (PVC) and polypropylene raw material is a popular choice.




floating gasket in strong take off a tooth to cover the state of







floating gasket in strong take off a tooth to cover 'can be tooth of well hold' state






floating gasket in strong take off a tooth to cover 'in the back when the sealing gasket in the cosmetics packaging production cover' state