A valve bag making machine is a type of packaging machine that is used to produce bags with a valve opening that allows for easy filling and dispensing of the bag’s contents. Valve bags are commonly used in the packaging of powders, granules, and other materials that need to be easily filled and dispensed, such as cement, fertilizer, pet food, and chemicals.
The process of making valve bags using a valve bag making machine typically involves the following steps:
Material feeding
The machine feeds a roll of flat or pre-printed film into the machine, which is then formed into a tube shape.
Sealing
The edges of the tube are sealed to create a closed bag.
Valve formation
A valve is formed in the bag by folding and sealing a portion of the film to create a small opening.
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