Industrial Nonwoven PTFE Filter Fabric Filter Bag

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Place of Origin: Shandong, China Brand Name: AOBO shape: Snap band
Material Of Bag: PTFE Certificate: FDA, IS19001, ISO14001 Model Number: AOBO-PTFE FILTER BAG

Product Description:

Industrial Nonwoven PTFE Filter Fabric Filter Bag


The PTFE needled felt is a fiber of extremely stable chemical performance


1,Continuous operating temperatures above 250, the instantaneous temperature of 280
2, Good acid & alkali resistance and oxidation resistance, non-combustible. 
3, The only not aging fiber. 
4, Can be used under the most adverse conditions, with extremely long service life, and usually the service life is 4 years.



 Description of product






Square weight






Air permeability


Breaking Strength-lengthways

≥450 N/125px

Breaking Strength-crosswise

≥450 N/125px





Heat shrinkage@150degC,90min


Bursting strength

300   N/cm2

Continuous temperature


Instantaneous temperature




Heat Setting

Basically all needle felts at Shandong Aobo are heat-set. 

The residual shrinkage is reduced to a minimum by means of an optimum combination of the decisive quality factors , such as temperature, dwell time and cooling phase.

The controlled process management during the cooling phase ensures that the filter bags will have excellent form stability even under most difficult conditions.

Quality-determining parameters

  • Temperature

  • Reaction time

  • Cooling time


Thermal surface treatment

The surface of any needle felt influences the structure of the filter cake, its cleanability as well as pressure drop and the emission.

-          Singed

Three different kinds of treatment are possible: 

  • smooth for adhesive and moist dust

  • medium for universal treatments

  • rough low agglomeration or fine dust

-          Calendering

Through calendering a more compact fiber structure is achieved. This allows a more surface-active separation of dust with lower emission.


Protective Impregnation

-          hydrophobic, oleophobic

This treatment makes it more difficult for moisture to penetrate into the needle felt. Thus the risk of excessive dust deposits and caking is reduced.

-          Protection against acids and hydrolysis

Special impregnation based on TEFLON®. This treatment coats the fiber surface, thus providing it with the anti-adhesive character of a PTFE finish.

An oil- and water-repelling effect is produced, and the fibers are effectively protected against acid and hydrolysis attack.

-          Active finish, hydrophobic

Special water-repellent treatment providing a high cleaning and separation efficiency.


Through the filter-active coating dust is already separated on the surface. In addition the anti-adhesive surface reduces the adhesive forces between the filter medium and dust cake.


  • Optimised cleaning

  • Increased service life

  • High separation efficiency

  • PTFE-Coating, hydrophobic and oleophobic fibers, protection against acids and hydrolysis

  • Primary finish membrane, microporous foam coating, high separation efficiency, easy dust release, hydrophobic and oleophobic

Industrial Nonwoven PTFE Filter Fabric Filter Bag

Industrial Nonwoven PTFE Filter Fabric Filter Bag

Industrial Nonwoven PTFE Filter Fabric Filter Bag

Packaging & Shipping

Industrial Nonwoven PTFE Filter Fabric Filter Bag

Company Information

Industrial Nonwoven PTFE Filter Fabric Filter Bag

Industrial Nonwoven PTFE Filter Fabric Filter Bag

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Q:What is the effect of a dust filter bag?
The inside of the filter bag is used to support the filter bag to prevent the bag from collapsing, and it helps to clear and redistribute the dust cake.
Q:How to unload the washing machine's filter bag?
Press the card in the filter bag and come down. Don't drag ah. And left and right, are there any buttons nearby
Q:How can the washing machine's filter bag be clean?
In general, the filter bag of the washing machine can be removed, please read the instructions carefully, even if it is not easy to tear open come down to, as long as don't have much stuff, generally does not affect the quality of washing.
Q:Can the filter bag be cleaned by itself? How to wash?
It can be cleaned. Main process steps for cleaning filter bags: 1, clear ash: using high frequency vibration, will enter the filter bag inside wall of the larger dust particles to clear, will not affect fiber entanglement fastness, filter bag a good stripping resistance. 2, the chemical experiment treatment: extract the bag samples, by professional laboratory testing instrument filter bag oil component, which adapt to washing raw materials, the maximum wash the filter bag and without causing any damage to the filter bag. Cleaning: choose suitable washing materials and strict match, low temperature water cleaning, water flow uniformity, moderate strength, no mechanical damage to filter bags. 4, drying, with around 110 ℃ hot air drying, keep the size stability of the filter bag, filter bag deformation and retraction after drying. Repair: repair and ensure a high return rate for the use of broken filters such as abrasion and holes. Testing: the instrument is used to test the filter bag after cleaning and ensure the quality of cleaning is met. After the processing of the above process, the filter bag can meet the requirement.
Q:The filter bag in the washing machine is broken. How do you fix it
The filter bag in the washer is broken, the maintenance method is replacement, the replacement step: 1, use a screwdriver to remove all the screws. 2, remove the back cover. 3, remove the filter bag from the inside and outside barrels. 4, install the paste card slot. 5 will filter the network card. 6, cover the cover and screw.
Q:What is the filter bag made of foam tea?
Made of paper. Tea, the leaf or bud of a tea tree. Don't tea, based (ji) m:, nameplates, Chuan (chu m: n), camellia shrubs or small trees, twigs glabrous. General evergreen shrubs of tea leaves can be used to make tea, and using the leaves a bottle of drink, later extended to all the plant flowers, leaves, seeds, roots steeped herbal tea, such as "chrysanthemum tea"; The "cold tea", which is made from all kinds of herbs, is also called the bud in Chinese literature. Some countries also have tea made from other plants, such as fruits and herbs, such as "fruit tea". The leaf leather, long round or oval, can be drunk directly with boiled water, and divided into six categories according to the variety and method of production and the shape of the product. Tea drinks are known as "one of the three biggest drinks in the world". Tea contains catechins, cholesterolenone, caffeine, inositol, folic acid, acid, etc., which can improve human health. Tea originated in China, and tea drinking originated in China.
Q:How do garbage bags in washing machines have no garbage
That's because when you wash your clothes the water level is too low, the water can't come up, so you can't filter the water, you can adjust the water level
Q:What is the fabric of a filter bag?
Forging tissue: according to the surface of the fabric, the warp and weft are divided into the warp and the weft. The texture of the forging texture is smooth, the surface is shiny, very soft, elastic and breathable, and the yarn is easy to clean because of the moving nature of the yarn.
Q:How about the filter bag of the washing machine
The filter net of the washing machine is divided into two kinds: one kind is net bag type, one kind is the plank type. 1, can observe filter plate have an arrow above, according to the location of arrows, have hands press card, can win filter, fasten can directly when installation;
Q:How to use a home cleaner filter bag properly
Beware of using filter bags to absorb inflammable and explosive items or things that are hotter, so as not to burn or explode. The dry cleaner can't absorb the liquid, and the average household vacuum cleaner also tries to avoid the metal scraps, otherwise it's easy to absorb dust The device causes damage and affects performance. Dust bag vacuum cleaners should stop vacuuming immediately and replace them immediately to prevent dust from causing damage. It should not be used for long periods of time, and if used for a period of time, dust accumulates in the filter bag causing the suction to drop and can be shaken Moving the box, the dust is knocked down at the bottom of the box, and the suction will recover.

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