20g PP Plastic Deodorant Stick with Spring Twist Up Mechanism for Hygienic and Travel-Friendly Use

Key Components and Functionality

This packaging is a mechanical system with several interconnected parts:

1. Outer Shell / Barrel:

   • Material: Almost always PP (Polypropylene). PP is chosen because it is:

     • Rigid & Sturdy: Provides structure and protects the product.

     • Chemically Resistant: Won't degrade from interaction with the deodorant's active ingredients (like aluminum salts).

     • Cost-Effective: Inexpensive for mass production.

2. Twist-Up Mechanism (The "Engine"):

   • This is the core of the package, located at the bottom.

   • It consists of a screw mechanism and a spring.

   • How it Works: When the user rotates the knob at the bottom, it turns a threaded column inside. The platform (or "elevator") that holds the deodorant is screwed onto this column. As the column turns, the platform is forced to move up or down in a straight line. The spring helps provide tension for a smooth action and can assist in retraction.

3. Platform / Elevator Cup:

   • A small plastic cup that the deodorant product is molded onto or hot-pressed into.

   • It locks into the screw mechanism and moves the product up and down.

4. Cap / Overcap:

   • Screws or snaps onto the top of the barrel.

   • Primary Function: To seal the product, prevent it from drying out, and protect the deodorant stick from damage and contamination.

   • It often includes a "domed" interior to accommodate the raised deodorant stick when the cap is closed.

20g Deodorant Stick

PP Plastic Deodorant Stick

Spring Twist Up Mechanism Deodorant Stick

20g PP Plastic Deodorant Stick with Spring Twist Up Mechanism for Hygienic and Travel-Friendly Use Images