When we take an in-depth look at the filter bag manufacturing process, we see that the first step is to identify the material. This is usually adjusted to specific needs. First, the material in fiber form is converted into fabric form using needle punching machines. However, in order for this fabric to work effectively in filter systems, it needs to go through a few additional steps.
One of these steps is the impregnation process. The material is immersed in special hydrophobic liquids to give it water and oil rejection properties. Then, it is subjected to a gauze process to prevent dust and particles from adhering to the fabric and to make it easier to push these particles down the filter system.
After these processes, the filter fabric is collected in rolls and cut to custom sizes, thus being prepared for sewing. The length is machine-stitched with a solid chainstitch, while a cap is attached at the bottom and a flexible hoop ring designed with a special diameter to fit the rings on filter systems at the top.
In the final stage, the cleaning, folding and packing of the bags is carried out so that they are prepared for shipment. This is an overview of the filter bag manufacturing process, requiring superior quality control and attention at every stage of production.