The Press felt is an important role in removing the water from the paper web after the forming section, at the same time imparting smoothness and conveying it to the dryer section. For this reason, The press felt needs to provide the following functions: water removal, smoothness and runability.
Single Layer paper machine felt is made up of single base layer fabric and fiber layer. Base layer is woven from synthetic filament or multi-filament. The structure is designed base on different paper machine, different press position and different type of paper.
Double Layer paper machine felt includes 1+1 composite structure and double layer of MD yarn structure. 1+1 composite structure BOM is consisted of two different thickness of base material. Both of these base materials can be changed to different construction and sizes to suit the requirement of different paper machines.
Triple layer paper machine felt includes 1 +2, 2 +1 and 1 +1 +1 composite BOM felt.
Applying to high speed of the paper machine for suction complex press, large diameter nip roll press and shoe press and can produce high-grade newsprint, write paper, paperboard etc.
1.Absorbing the moisture squeezed out of the wet paper pages in the pressure zone.
2.Supporting the wet page to prevent "embossing" in the pressure area.
3.In the pressure zone, the elasticity of the felt can evenly distribute the pressure on the whole wet paper page.
4.Giving the desired surface properties of the page.
1.Water filtration
As a dewatering medium, when the paper web is dehydrated in the vacuum box and the press area, the paper making blanket absorbs and filters out the water from the paper sheet.
2.Leveling effect
In the process of web transfer and dehydration, it plays a role in leveling and modifying the paper surface
3.Function of conveyor belt
The paper sheet is transferred from the net part to the drying cadre through the pressing part, and the driven roller and cylinder mould are driven to operate.
1. High anti-compaction capacity.
2. Extremely high elasticity and recoverability.
3. Strong drainability abd larger void volumn.
4. Long holding time of wear resistance and plastic strength of felt.
5. Smooth felt surface and even pressure distribution.
Layers |
Single layer |
Double layer |
Triple layer |
Paper machine |
all kinds of machine |
all kinds of machine |
all kinds of machine |
Speed |
≤800m/min |
≤1000m/min |
≤2000m/min |
Paper |
≥8g/m2 |
≥40g/m2 |
≥40g/m2 |
NIP |
≤80kN/m |
60-200kN/m |
≥200kN/m |
1.Bubble Film and waste thick fabric wrapping while protecting inside fabric.
2.Wrapped special fabric package outside(Air shipping ).
3.Composite wooden box(seashipping ).