In today's industrial field, the production method of filter cloth not only reflects the advanced technology, but also directly related to the quality and performance of products. This article will explain the production methods of industrial filter cloth from several key links.

1. Material selection and procurement

The performance of an industrial filter cloth is largely determined by its raw material. In modern industrial production, the raw materials of filter cloth have gradually diversified from traditional cotton fibers and polyester fibers to high-performance fibers such as aromatic polyamide fibers, PTFE fibers, glass fibers, etc. These high-performance fibers not only provide excellent heat and corrosion resistance, but also significantly improve filtration efficiency and service life.

In the material procurement stage, the manufacturer will select the appropriate fiber material according to the use of the product, the working environment and the customer's needs, and ensure that the quality of the raw material meets the standard.

2. Pretreatment and fine-porous cloth production

After the raw materials are purchased, a series of pretreatment processes need to be carried out, including cleaning, pickling, alkali washing and coating treatment, etc., to remove impurities, adjust the surface properties of the fibers, and lay a good foundation for subsequent processing.

The production of fine porous cloth is one of the core links in the production of filter cloth. This process involves multiple steps such as polymerization, spinning, drawing, annealing, coating, etc. By precisely controlling these process parameters, filter cloths with specific pore size, porosity, and filtration efficiency can be produced. Among them, coating treatment is an important means to improve the performance of filter cloth, which can form a protective film on the surface of the fiber, enhance chemical resistance and abrasion resistance.

3. Composite treatment and coating

In order to improve the overall performance of the filter cloth, composite treatment and coating treatment are also carried out during the production process. Composite processing can combine fibers or materials with different properties to form composite materials with multiple functions. The coating treatment can form a uniform and dense coating on the surface of the filter cloth, further improving its filtration efficiency, chemical resistance and abrasion resistance.

Fourth, cutting processing and finished product inspection

After the above process processing, the filter cloth will be cut and cut into different specifications and sizes according to customer needs. During the cutting process, attention needs to be paid to maintaining the flatness of the fabric and the neatness of the edges to ensure the beauty and practicality of the product.

Finally, the finished product will undergo rigorous inspection and testing, including testing for air permeability, filtration efficiency, dust holding capacity, pore size, and chemical resistance. Only filter cloths that have passed all inspections are packed into storage and delivered to the customer.