What is The Function of Forming Fabric?

Forming Fabric for Paper Machihne Wire Section

The forming fabric is used in the forming section of a paper machine and is the most important part of the paper machine. The paper suspension forms paper sheets on it, and the quality of the paper and the normal production of the paper machine are closely related to the forming fabric. Once the wet paper web is formed on the forming fabric, the fiber interweaving state in the paper is basically set, and the basic physical properties of the paper are also determined. Subsequently, the pressing, drying, and calendering processes of the paper machine can only improve the properties of the formed paper web to a limited extent. The forming device of a paper machine is usually the most complex part of the paper machine. During operation, the power consumption and maintenance costs of the forming device account for a considerable proportion of the entire paper machine.

The Main Fuction of Forming Fabric is Below Two Point

Obtain Well-organized Wet Paper Web

The forming of paper web is a complex process, which can usually be simply regarded as the result of fibers gradually depositing onto the forming fabric surface, interweaving and interweaving into a thin layer. To obtain a uniformly organized paper web, in addition to high-performance flow equipment, it is also necessary to perform a reasonable dehydration process on the forming fabric surface of the paper material. Generally, by controlling the difference between the wire speed and the pulp speed, shaking the forming fabric, and selecting appropriate dewatering elements, the fiber suspension in the paper web forming process can be made relatively calm and turbulent, so that the deposited fibers are evenly dispersed without flocs, and at the same time, inappropriate and rapid dewatering can be avoided, causing excessive loss of adhesive, fillers, and small fibers in the paper, resulting in differences in the properties of both sides of the paper web.

Dehydrate The Formed Paper Web to A Certain Dryness Level

After the initial formation of the wet paper web, it is generally necessary to achieve a certain dryness or wet strength through forced dehydration methods (such as vacuum suction, pressing, etc.), so that it can be peeled off from the forming fabric surface.

The commonly used paper machine forming devices now include foudrinier forming devices, cylinder mould forming devices, multi wire forming devices, composite forming devices, high concentration forming devices, and dry forming devices.