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Press Felt

Single Layer Felt
Press felt
 Synthetic mono-filament or multi-filament
Good filterability
Easy to wash and clean
Double Layer Felt
Double layer felt
 1+1 composite structure
Double layer of MD yarn structure
High press resistance
Permeability and size stability
Triple Layer Felt
Triple layer felt
 Structures of 1 +2, 2 +1 and 1 +1 +1 composite felts
Resistance against high pressure loadings
Large void volume
High surface smoothness

High Speed Machine Press Felt

Sun Hong also specializes in producing press felt for high-speed paper machines, which are suitable for speed ≥ 1000 m/min
Sun Hong Press Felt has a structure that provides a good start-up and high nip dewatering, features strength and stability good.Coming in a variety of base weights, the felt can be used in all positions.
 

Analysis Of Common Problems Of 

Press Felt

 
 Have you ever meet felt lint in the process of using press felt?
After using the felt, is there embossing on your paper surface?
​​​​​​​ Is your press felt deformed after use?
​​​​​​​ The service life of the felt is short and the wear is serious?
 
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The Installation Of The Felt

01 Keep the felt clean to prevent oil from sticking to the felt.
02 Before the felt is flattened on each roll, it is not allowed to drop the top press roll, couch roll or support roll. Never pressurize the press roll until the paper machine is running normally.
03 When the felt is running slowly until it is running well, moisten the felt evenly with water until the water is saturated, then adjust the tension to stretch the felts to the optimum length, width and dehydration condition.
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04 There shall be sufficient gap between the spoke and the shaft sleeve or between the spoke and the spoke to make the felt easy to cover and avoid pulling the felt in through the gap.
05 Before starting the machine, check whether there are foreign matters on the top and bottom of the felt, as well as pressing and auxiliary devices.
06 The running direction of the felt on the paper machine shall be marked by the arrow on the felt surface.

Sun Hong Paper Machine Clothing

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Precautions for using press felt

  • Precautions before install the felt
    Before installing felt on the machine, you need to pay attention to the integrity of the packaging, check if there is any damage, and then check if the specifications on the marker are consistent with the goods ordered (specification, amount, contract etc.).And then make sure there is no problem with the appearance, dimension and material.
  • Precautions for the installation of felt
    When install the felt, pay attention to cleaning the installation area of the paper machine. Identify the front and back side and the direction of operation (the side with felt NO and SH (Sun Hong) is the front side. The direction of operation is indicated by the arrow). Do not damage the felt by pulling, tugging. Take care to prevent the press felt from being stained or damaged by hard objects.
  • Precautions for pulp release and paper making process

    Make preparations in advance. Before releasing the pulp,you can stretch the felt firstly, but do not make it over-tensioned. If it is over-stretched, the press felt will shrink horizontally, resulting in deformation of the base cloth eyelet and making water filtration problematic.
    Make sure that the vacuum and washing system can operate normally. Observe the standard line running and deformation of the felts and adjust them as soon as you find any problems.

  • Felt maintenance precautions

    1. Take care not to damage the press felt artificially and avoid cutting. To prevent wear and tear of the press felt, wash it evenly.
    2. Try your best to avoid foreign objects entering the pressing zone.
    Clean the felt regularly and pay attention to the norms when using chemical detergents.
    3. When the machine is offline for 4-5 hours or more, the felt should be cleaned and allowed to relax.
    4. To prolong the life of your press felt, you need to wash it regularly. Washing is the key to a longer life and less paper problems.
    Please do not hesitate to contact us when you have any questions.

  • Benefits of idling
    1. A period of idling facilitates the initial adaptation of felt and to extend its lifespan.

    2. After a period of idling, new felts can be washed off the objects on surface, improve the smoothness of the surface
    It helps to remove oil and dirt,also to improve its density and air permeability.

    3. After installing the new felts you can apply some pressure when felt running, add hot water close to 50°C, then 5% alkaline water to soften the press felt, and pass 0.1 Mpa steam into the dryer cylinder to shorten the initial adaptation time.

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Factory

Learn More About Sun Hong Group

  • Feb
    21
    What is the management system of stock preparation?
    The company focuses on manufacturing paper machine accessories and ingredients. From the perspective of emphasizing prevention, the enterprise should implement the "three Simultaneities" plan of stock preparation when formulating the equipment procurement plan: determine the equipment structure and
  • Sep
    08
    Classification and purchase of paper machine clothing press felt
    Paper machine clothing press felt is an important consumable material in the paper industry. Mainly used in fourdrinier paper machine, drum paper machine, cardboard machine to transport wet paper and dewater. Paper machine clothing press felt can be divided into single-layer felt, double-layer felt
  • Jul
    16
    Sun Hong Felt & Fabric Industry
    As one of the biggest textile technology products manufacturers in China, Sun Hong Group have exported 96 country and have more than 300 customers.We adhere to the technology development strategy of high starting point and high investment. Sun Hong fabrics focus on paper and pulp industry with cost-effective products and one by one design solution, help customer reducing energy consumption,increase capacity while obtaining excellent ending paper property.We commit ourselves to providing the first class-product and serve for you, your satisfaction is our pursuit.
  • May
    23
    How to install press felt ?
    First, Precautions before operation:1. Check whether the package is complete;2. Check whether the product number, specification and weight are the same as the order content;3. Open the package, check the felt appearance quality and size, verify the product number and check the running arrow.Second,
  • May
    23
    Things you need to know about felt lint ? Why and How to slove it ?
    Reason:There are many reasons for the damage and the lint of the felt, mainly two of which are scraped by machine parts and chemical damage.1.The most common reason is that the surface of the press felt torn loosened by high pressure water.2.Lack of lubricating water between the vacuum panel and the

  • What is the reason for the rapid wear of the edge of the forming fabric?

    Most of the most serious wear is at the joint between the vacuum and the non-vacuum, about 10-15cm from the edge of the forming fabric. At this time, it is necessary to increase the width of the vacuum box opening, add normal pressure lubricating water to the edge of the vacuum box, or apply reinforcing ribs at appropriate locations.

  • Why does the forming fabric produce delayed wear?

    Hysteresis wear is caused by the running speed of the forming fabric being lower than the surface of the dewatering elements and other devices in contact with it. It usually occurs at the couch roll or drive roll.

  • How to deal with the forming fabric when the paper machine is shut down?

    If the shutdown time is short, on a paper machine with low load and low pulp temperature, the original operating tension value can be retained;
    If it is on a high-speed paper machine with high load and high temperature, even if it is shut down for a short time (the fourdrinier paper machine is at creeping speed), the tension must be relaxed;
    If the machine is shut down for a long time, all tensions need to be relaxed and the forming fabric needs to be stored without tension. It can also be washed and unrolled for storage.

  • What should be paid attention to when using the forming fabric in normal times?

    When the paper machine is shut down, turn off the vacuum water suction device to avoid partial sinking of the forming fabric and accelerating the wear and wrinkling of the forming fabric. Turn off the high-pressure water at the same time to avoid partial sinking of the forming fabric and accelerating the wear and wrinkling of the net.

  • What should be paid attention to before installing the forming fabric?

    Before starting the machine, it is necessary to check and remove foreign objects on the forming fabric and the automatic net guide system according to the direction of the arrow on the forming fabric.

  • How to get the price of press felt?

    Please provide us with the following information:your paper machine speed, paper kind, paper weight and the size of the felt(W*L*GSM)

  • What are the causes of press felt lint?

    There are many reasons for the damage and the lint of the felt, mainly two of which are scraped by machine parts and chemical damage. The most common is that the surface of the press felt torn loosened by high pressure water.Sometimes the responsibility is not with the fabric, because the fibers can also come from pulp or even from outside systems.

  • What causes the standard thread of press felt to run off or bend and deform in front and back?

    ①The length of both sides of the press felt is not the same
    ②The paper machine rollers are not parallel, causing the press felt to be unevenly tightened
    ③Uneven watering of the press felt when restarting the machine, resulting in inconsistent shrinkage of the press felt.

  • What should I do if the press felt becomes wider after use?

    The press felt may become wider after a period of use, which is normal. Don't tear it by hand, you should stop machine and cut off the extra edge after it is dry, then use a soldering iron to iron the edge.

  • What should we pay attention to when changing a new felt?

    Distinguish the front and back side of the felts.
    Install according to the standard line on the felt

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Fax: +86 516 85697696
Office:  A2 building YunChuang science and technology park Pinshannan road Gulou district Xuzhou city Jiangsu province China
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