soft polyethylene plastic cosmetic hand cream tube roll tube plastic tube

Common Types of Plastic Tubes

Plastic tubes are categorized by the type of plastic resin used, which determines their properties.

Key Components

1. Tube Body: The main reservoir, made of flexible plastic.

2. Shoulder: The conical section connecting the body to the neck.

3. Neck: The opening where the product is dispensed. Comes in various sizes (e.g., 13mm, 19mm, 22mm) to control flow.

4. Cap/Closure: Screws onto the neck. Types include:

   • Flip-Top Cap: Very user-friendly for one-handed use (e.g., in the shower).

   • Screw Cap: Simple and secure.

   • Nozzle Tip Cap: For precise application (e.g., eye cream, glue).

5. Bottom Seal: The tube is filled from the bottom and then heat-sealed and crimped, creating an airtight seal.

6. Tamper-Evident Seal: A plastic band or membrane that breaks when the cap is first twisted open, proving the product is new.