Bag making machines can be divided into:

1. Spinning: It is the process of spraying high-pressure fine water onto one or more layers of fiber mesh, causing the fibers to intertwine and strengthen the mesh to a certain degree of strength.

2. Heat sealed non-woven fabric bag: refers to adding fibrous or powdered hot melt adhesive reinforcement material to the fiber mesh, and then heating, melting, and cooling the fiber mesh to reinforce it into a cloth.

3. Pulp airflow net non-woven fabric bag: also known as dust-free paper or dry papermaking non-woven fabric. It uses air flow mesh technology to loosen the wood pulp fiberboard into a single fiber state, and then uses air flow method to aggregate the fibers on the mesh curtain, and the fiber mesh is reinforced into a cloth.

4. Wet non-woven fabric bag: It is a process of loosening fiber raw materials placed in a water medium into single fibers, and mixing different fiber raw materials to form a fiber suspension slurry. The suspension slurry is transported to a web forming mechanism, and the fibers are then reinforced into a cloth in a wet state.

5. Spin bonded non-woven fabric bag: It is a process where the polymer has been extruded and stretched to form a continuous filament, which is then laid into a web. The web is then self bonded, thermally bonded, chemically bonded, or mechanically reinforced to transform into non-woven fabric.

6. Melt blown non-woven fabric bag: Its process includes polymer feeding - melt extrusion - fiber formation - fiber cooling - mesh formation - reinforcement into fabric.

7. Acupuncture: It is a type of dry non-woven fabric that uses the puncture effect of a needle to reinforce a fluffy fiber mesh into a fabric.