Factory Wholesale Custom Designed 6~18oz Sales Food Grade Single Double Side PE Paper Cup Fan

Features

The Manufacturing Process Flow:

The use of the paper cup fan is central to the modern cup-making production line:

Step 1: Raw Material (Roll Stock)
The process starts with a large roll of paperboard, already coated with PE or PLA.

Step 2: Printing & Die-Cutting
The roll is fed through a printing press. After printing, it goes through a die-cutting machine, which punches out the familiar fan shape and punches the "blanks" for the cup bottoms.

Step 3: Fan Stock Handling
The flat, die-cut fans are stacked and fed into an automatic cup-making machine.

Step 4: Cup Forming (The Key Step)
Inside the cup-making machine, the solution unfolds:

• A fan is picked up and wrapped around a mandrel (a metal cone).

• The longitudinal side seam is heated and sealed, creating the cup's body.

• The pre-cut bottom disc is fed into the bottom of the cup body.

• The rim of the cup body is curled outwards and heated, melting the PE/PLA coating to create a watertight seal with the bottom disc.