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Description of Polyester filter bags
Polyester filter bags are one of the most widely used filter bags in industrial dust collection applications. They are constructed using high-quality polyester fabric, which provides robustness and dimensional stability. As a filtration media, polyester has the following characteristics:
● Filtration Efficiency —— The tight polyester fabric structure traps even the smallest particles, ensuring a high level of filtration efficiency. This makes polyester filter bags particularly effective in removing fine particles and dust from dust-laden gas.
● Excellent Tensile Strength and Abrasion Resistance —— This allows them to withstand high-flow rates and pressure differentials without tearing or disintegrating.
● Excellent Mechanical & Dimensional Stability —— Polyester filter bags are dimensionally stable and have low shrinkage properties. This ensures that they maintain their shape and size even under high-temperature conditions.
● Easy Cleaning —— Polyester filter bags can be easily cleaned and reused, reducing the need for frequent replacements and minimizing waste.
In addition to these filtration characteristics, polyester filter bags also offer a number of other advantages, such as:
● Long Service Life —— The durability of polyester filter bags results in longer service life, reducing the need for frequent bag replacements.
● Easy Maintenance —— Polyester filter bags are easy to clean and maintain, allowing for efficient and convenient filter bag cleaning processes with minimum maintenance costs.
● Versatility —— Polyester filter bags are available in various sizes, shapes, and configurations, making them suitable for a wide range of industrial filtration applications.
● Cost Effective —— Polyester filter bags are relatively affordable compared to other filter bag materials, making them a cost-effective choice for filtration applications.
Scrim-supported felt is used exclusively in the production of our polyester filter bags in order to improve filtration efficiency and extend the filter bag life.
Specification of Polyester Filter Bags
| Fiber Content | 100 % Polyester |
| Weight | 550g/m² (16.22oz/yd²) |
| Thickness | 2.20mm (0.087in) |
| Fabric Construction | Needlefelt |
| Continuous Operating Temperature | 135°C (275°F) |
| Maximum Surge Temperature | 150°C (302°F) |
| Abrasion Resistance | Excellent |
| Acid Resistance | Fair |
| Alkali Resistance | Good |
| Moist Heat Resistant | Poor |
| Energy Absorbsion | Excellent |
| Filtration Property | Excellent |
| Oxygen (15%+) | Excellent |
For polyester filter bags, we can treat it with different post-processing according to different working conditions. There are mainly the following post-processing treatments:
● ePTFE Membrane
Adding an ePTFE membrane to a polyester filter bag allows the membrane to act as the filter cake. Dust stays on the surface of the membrane and does not get entrained into the fibers of the filter bag, which lengthens the life of your filter bag. It also reduces wear and tear, lower maintenance costs, and energy costs due to easy dust cake release during the cleaning cycle.
● Hydro-Oleophobic Coating
This coating adds resistance to water and oils, and improves cake release.
● Static Resistant
Helps to ground the filter bag to eliminate sparks that might cause combustion explosions.
● Singe
Singeing is a finishing process where the surface of the filter media is exposed to a flame or hot gas to burn off the fine and straggly fibers in order to provide a uniform and smooth surface area, which improves dusk cake release, enhanced filtration efficiency, and better air permeability.
The singeing process typically involves passing the fabric over an open flame or through a heated chamber. The heat singes off the protruding fibers without damaging the main structure of the fabric. The process parameters, such as speed and temperature, are carefully controlled to achieve the desired level of smoothness and finish.
● Glazing
Glazing, also known as calendering, is the high-pressure pressing of the fabric by rollers to flatten or smooth the surface. Glazing pushes the surface fibers down onto the body of the filter media to increase and uniform surface life, improve stability, reduce shrinkage, and improve dust cake release.
Description of Polyester filter bags
Polyester filter bags are one of the most widely used filter bags in industrial dust collection applications. They are constructed using high-quality polyester fabric, which provides robustness and dimensional stability. As a filtration media, polyester has the following characteristics:
● Filtration Efficiency —— The tight polyester fabric structure traps even the smallest particles, ensuring a high level of filtration efficiency. This makes polyester filter bags particularly effective in removing fine particles and dust from dust-laden gas.
● Excellent Tensile Strength and Abrasion Resistance —— This allows them to withstand high-flow rates and pressure differentials without tearing or disintegrating.
● Excellent Mechanical & Dimensional Stability —— Polyester filter bags are dimensionally stable and have low shrinkage properties. This ensures that they maintain their shape and size even under high-temperature conditions.
● Easy Cleaning —— Polyester filter bags can be easily cleaned and reused, reducing the need for frequent replacements and minimizing waste.
In addition to these filtration characteristics, polyester filter bags also offer a number of other advantages, such as:
● Long Service Life —— The durability of polyester filter bags results in longer service life, reducing the need for frequent bag replacements.
● Easy Maintenance —— Polyester filter bags are easy to clean and maintain, allowing for efficient and convenient filter bag cleaning processes with minimum maintenance costs.
● Versatility —— Polyester filter bags are available in various sizes, shapes, and configurations, making them suitable for a wide range of industrial filtration applications.
● Cost Effective —— Polyester filter bags are relatively affordable compared to other filter bag materials, making them a cost-effective choice for filtration applications.
Scrim-supported felt is used exclusively in the production of our polyester filter bags in order to improve filtration efficiency and extend the filter bag life.
Specification of Polyester Filter Bags
| Fiber Content | 100 % Polyester |
| Weight | 550g/m² (16.22oz/yd²) |
| Thickness | 2.20mm (0.087in) |
| Fabric Construction | Needlefelt |
| Continuous Operating Temperature | 135°C (275°F) |
| Maximum Surge Temperature | 150°C (302°F) |
| Abrasion Resistance | Excellent |
| Acid Resistance | Fair |
| Alkali Resistance | Good |
| Moist Heat Resistant | Poor |
| Energy Absorbsion | Excellent |
| Filtration Property | Excellent |
| Oxygen (15%+) | Excellent |
For polyester filter bags, we can treat it with different post-processing according to different working conditions. There are mainly the following post-processing treatments:
● ePTFE Membrane
Adding an ePTFE membrane to a polyester filter bag allows the membrane to act as the filter cake. Dust stays on the surface of the membrane and does not get entrained into the fibers of the filter bag, which lengthens the life of your filter bag. It also reduces wear and tear, lower maintenance costs, and energy costs due to easy dust cake release during the cleaning cycle.
● Hydro-Oleophobic Coating
This coating adds resistance to water and oils, and improves cake release.
● Static Resistant
Helps to ground the filter bag to eliminate sparks that might cause combustion explosions.
● Singe
Singeing is a finishing process where the surface of the filter media is exposed to a flame or hot gas to burn off the fine and straggly fibers in order to provide a uniform and smooth surface area, which improves dusk cake release, enhanced filtration efficiency, and better air permeability.
The singeing process typically involves passing the fabric over an open flame or through a heated chamber. The heat singes off the protruding fibers without damaging the main structure of the fabric. The process parameters, such as speed and temperature, are carefully controlled to achieve the desired level of smoothness and finish.
● Glazing
Glazing, also known as calendering, is the high-pressure pressing of the fabric by rollers to flatten or smooth the surface. Glazing pushes the surface fibers down onto the body of the filter media to increase and uniform surface life, improve stability, reduce shrinkage, and improve dust cake release.
