Fourdrinier Paper Machine Writing Paper Polyester Dewatering Single Layer Forming Fabric

Product Description

SUN HONG PAPER MACHINE CLOTHING -- Forming Fabric

The forming fabric / Forming wire or "wire" of a paper machine is the continuous belt or belts of mesh screen upon which the paper sheet is formed. Most modern forming fabrics are no longer comprised of metal wires. Rather, they are comprised of polyester monofilament. The weave pattern and layering of a forming fabric is designed to meet stringent requirements of dimensional stability, resistance to abrasion (on the wire side), minimum resistance to drainage, minimum wire mark, and (sometimes) maximization of retention of fiber fines. Traditional Fourdrinier paper machines have a single wire. Modified Fourdriniers and gap formers can have two.

Forming fabric is very important for a paper machine in a paper mill. In the general formation of paper depends on wire cloth and refining of paper pulp. Paper machine wire cloth (forming fabric) made from polyester or polyamide monofilaments. To shape an uninterrupted belt, it is made by endless of a seam. During woven of forming fabric, filaments are composed of the paper machine direction and paper machine cross direction. The filaments of paper machine direction or lengthwise are called warp. One the other hand the filaments of paper machine cross direction are called weft or Shute or filling. The construction of wire cloth depends on some weaving variables such as pattern, mesh, yarn, diameter, degree of crimping etc. Mesh is very important for a wire cloth (forming fabric). Water drainage and retention of fibers depend on it.
 

Different Layer for Forming Fabric
 

Single Layer Forming Fabric

Heddle:5 heddle                      
Layer:single layer
Warp Diameter:0.27mm                                  
Thickness:0.8mm
Weft Diameter:0.5mm                                      
Air Permeability:7500 m3/m2·h/475CFM
Warp Density:20.8L/cm                                  
Weft Density:13.80L/cm  
Weft Composition: PET/PA  1/2                                      
Elongation: <0.7%
Application: Low speed packaging paper, corrugated paper

1.5 Layer Forming Fabric

1.5 layer 10 heddle
Warp Diameter: 0.25mm          
Warp Density: 24L/cm       polyester
Up Weft Diameter 1:0.22mm    
Weft Density: 9.2L/cm       polyester
Up Weft Diameter 2:0.22mm    
Weft Density : 9.2L/CM       nylon
Down Weft Diameter:0.4+0.4+0.4mm
Down Weft Density : 18.4 L/cm  polyester/700PB/nylon Thickness:1.03mm                  
Air Permeability:7600 M3/M2·h /481CFM  
Elongation:    <0.7%            
Mesh Strength: >900N/cm      
Interface Strength:   >550N/cm         
Application: packing paper, corrugated paper,etc

2.5 Layer Forming Fabric

Heddle:16heddle              
Warp Diameter: 0.25mm              
Warp Density:39.5L/cm      
Composition:polyester
Up Weft Diameter:0.25mm          
Up Weft Density: 12L/cm  
Composition:polyester
Filler Weft: 0.2mm              
Filler Weft Density: 12L/cm        
Composition:polyester
Down Weft Diameter: 0.5+0.5mm             
Down Weft Density : 12L/cm        
Composition:polyester/nylon
Application:packing paper, corrugated paper(multi wire paper machine's middle wire,bottom wire)

Triple Layer Forming Fabric

Up Warp Diameter: 0.2mm              Up Warp Density:21 L/cm      
Composition:polyester
Down Warp Diameter: 0.27mm       Down Warp Density:21L/cm      
Composition:polyester
Up Weft Diameter:0.22mm              Up Weft Density: 13L/cm  
Composition:polyester
Continuous Weft Diameter: 0.22mm              
Continuous Weft Density: 13L/cm        
Composition:nylon
Down Weft Diameter: 0.5+0.5mm                
Down Weft Density : 13L/cm        Composition:polyester/nylon  
Thickness: 1.51mm              
Air Permeability: 449CFM  (Adjustable within a certain range)
Application:packing paper, corrugated paper(multi wire paper machine's middle wire,bottom wire)

How to choose the right forming fabric for your paper machine?
Forming fabric design based on different machine type, operation speed, paper grade. So please provide us your paper machine information as details as possible.

How to Install Forming fabric?

1. Before installing the forming wire, kindly check the equipment if it is in good condition, the surface of wires should be forbidden from unevenness, slanting, burr, sand, etc.

2. The running direction must be in accordance with the direction of the arrow on the wire, the wire should be placed in the correct position, and the rollers should be paralleled with each other to prevent the wires from being deflected.

3. There should be a swinging high-pressure water device that used to wash wire. Water pressure is not lower than 6-10 kg/cm² for the medium and low-speed paper machine; speed more than 350m/min, water pressure is not lower than 10-15 kg/cm²; When using multi-layer forming wire, water pressure is not lower than 15-30 kg/cm², meanwhile water should be clean and without sand.

4. When installing the forming wire, firstly let the wire be slightly tensioned, add water to lubricate the operation, adjust the tension to normal after sizing, keep the tension of the low-speed paper machine at 3-4 kg/cm², and high speed one at 4-6 kg/cm².
 

Why Choose Sun Hong Paper Machine Clothing?

Sun Hong have almost 30 years experience for making paper machine clothing including forming fabric, dryer fabric and press felt for paper machine. We have advanced weaving machine, looming machine, needling machine, jointing machine, heat setting machine and superb imported raw material monofilament to produce our fabric. We have full previous and after service to provide our customer good use experience.
Every year we attended internatial paper and pulp exhibition to meet our customer, and we also welcome our customer come to China to visit our workshop to test our fabric. Sun Hong Group always look forward to working with you. If you want to get more details ,welcome to contact us.
 

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Imported Monofilment Raw Material