Sun Hong Forming Fabric

Operation mode of the forming fabric in the paper machine

When the paper machine is running, the pulp in the headbox will flow into the forming fabric and spread evenly and accurately on the surface of the forming fabric, and then drive the pulp to run for dehydration. The moisture in the pulp naturally sinks under the action of gravity and is filtered through the mesh of the forming fabric, gradually forming a wet paper sheet. When passing through the vacuum water absorption box, more moisture is absorbed by the vacuum device to further form a wet paper sheet. When the wet paper sheet is dehydrated to a certain extent, the forming fabric transports it to the pressing section.

Structural application and advantages

Single layer forming fabric can be divided into 4 shed, 5 shed and 8 shed. They have good strength and wear resistance. Among them, 8 shed adds a group of yarns with more stable structure, wear resistance and water filtration performance. They are often used in the production of cultural paper, packaging paper, etc.

The double layer forming fabric is 8 shed double layer. Sun Hong uses one group of longitudinal and two groups of transverse fibers to make it have a good retention rate. Compared with the single layer forming fabric, the paper making effect is better. It is often used in the production of writing paper and kraft paper.

The 2.5 layer forming fabric is 16 shed. Sun Hong has a higher fiber retention rate and better support without losing water filtration performance by adding transverse fiber design on the top of the double layer net. It is suitable for medium and high speed paper machines to produce high grade paper grades.

The triple layer forming fabric is 24 shed. Sun Hong uses a triple layer structure design. The upper warp and weft yarns are finer, and the lower layer is thicker. Double weft yarns are used in the middle to connect the upper and lower layers. The triple layer forming fabric has the best paper quality, excellent fiber retention index and dehydration efficiency, double warp locking structure, high longitudinal load resistance, and transverse wrinkle resistance. It is widely used in high speed paper machines to produce various types of paper.

Features

An excellent forming fabric needs to have the following characteristics, which will not only affect the dehydration effect of paper making but also the quality of paper making

(1) Excellent dehydration performance: As one of the core functions of the forming fabric, it needs to filter out moisture quickly and neatly

(2) Good forming quality: The forming quality will affect the uniformity and stability of the fiber, effectively reduce the foaming and wrinkling problems of the paper and improve the appearance quality

(3) With excellent edge life, Sun Hong uses the glue edge formed by the glue edge machine imported from Germany to penetrate the mesh. The strong adhesion perfectly solves the edge wear problem of the forming fabric and prolongs the service life.

(4) Anti blocking, using a special mesh design to effectively reduce the adhesion of fibers and impurities, easy to clean, keep the mesh surface unobstructed to ensure the dehydration effect

paramater

As a paper machine clothing supplier, Sun Hong can provide forming fabric of various specifications (single layer forming fabric, 1.5 layer forming fabric, double layer forming fabric, 2.5 layer forming fabric, SSB triple layer forming fabric). It adopts imported machinery such as Swedish TEXO warping machine and rapier loom, Norwegian 12.5 meter shaping machine, and fully automatic splicing machine to accurately control the production process of forming fabrics, with high processing precision, small tension error (the tension error of each single filament is within 5%), high speed and stable temperature error, and fast splicing while ensuring the quality of the interface.