Dust Collector Filter Bags

Dust Collector Filter Bags are important component of a filtration system. These are  made from glass fiber , acrylic , polyester, polypropylene, PTFE, P84 and nomex etc. These pleated dust collection bags are very efficient and present long-lasting excellent functionality. These pleated dust collection bags are widely employed for pollution control. Dust collector filter bags are also employed in metallurgy, fertilizers and chemical manufacturing plants.

Dust Collector Filter Bags

These are essentially necessary where the dust is produced throughout processing materials. For instance flour mill, pharmaceutical factories food processing etc, where the dust and other harmful things can not be permitted to exhaust in open environment. Plant of these categories implement dust collector filter bags to collect dust and other harmful elements. There are a variety of manufacturing techniques to manufacture suitable dust collector filter bags to fulfill all the requirements of a dust collector depending up on the system of cleaning such as pulse & reverse jet and auto mechanism cleaning.

Advantages of Dust Collector Filter Bags-

1- Its preservation cost is low.
2-Practical efficiency of Dust Collector Filter Bags are incredibly high.
3-It recovers heat  very proficiently.
4-It is  effective and not affected by Gas-dust composition

Dust collector filter bags perform a key role in these kinds of production plants who also make dust and other unsafe chemical crystals with their consumer goods. These manufacturing plants are like cement, thermal power station, fertilizers,steel pants , aluminum , zinc , lead , asbestos and chemical plants etc. Dust collector filter bags are applied here to collect harmful and dust substances.

The Secondary function of the dust collector bags is to control pollution for instance air pollution and water pollution. In the cement industry the medium particle size of the cement dust ranges from 8 to 12 microns. When the dust collector sucks the air, air brings with it these substances inside the dust collector. Dust collector transmits the air into the dust collector filter bags. Here dust collector filter bags are responsible to maintain sucked crystals and enable the air to pass. In all the stages of cement manufacturing , dust collector filter bags are proved to be the best because of its high-efficiency and flow rate etc. Dust collector filter bags may operate  proficiently during working in different temperatures,which may vary in accordance to the process of production dry or wet in industries in the range of 150 degree Fahrenheit to 250 degree Fahrenheit.

Varieties of Dust collector filter bags-

A- Acrylic homopolymer needle punched filter felt-

MS Acrylic homopolymer needle punched filter felt are available in woven or felt form. This     product offers chemical resistance identical to poly propylene while allowing operation up to 250 degree fahrenheit  (equivalent to 121 c).

Its feature is a great combination of filtration efficiency and dust layer release.
It delivers good chemical resistance to acid and alkalis.

It is employed in chemical processing .
It is utilised in mineral processing.
It is applied in metal processing.

B-Antistatic Needle- Punched Filter Cloth-

MS Anti static needle punched filter cloth simply results in the explosion and conflagration after the consistency of common commercial power and dust reaches certain degree. It is handling the static electricity light and spark outside  such as flour powder, coal powder and chemical crystals. To hold fine particles of dust the filter medium of bag must be anti static.

C- Nomex Filter Felt-

The characteristic of MS nomex filer needle felt is high temperature (between 204 ~ 240     degree), anti acid ,anti alkali , high filtration precision ,low pressure drop and  anti break .
Its other features are anti abrasion,mostly applied  in pitch mix gas, blast furnace gas of steel     factory , tail gas of while char ,kiln application and electrical cooker high temperature gas.

D- P84 Needle Punched Filer Felt-

MS p84 needle punched felt is a high heat -proof filter material good chemical     -proof, good air permeability and  high filtration efficiency. It is mostly utilized in coal boilers of thermal power stations.

E- Polyester (PET) Needle Punched Filter Felt-

MS Polyester needle punched filter felt offer a cost-effective alternative for a number of industrial operations. They are highly versatile and efficient in dust collection.

F- Water and Oil Resistant Filter Cloth-

After oil and water handling several filter fabrics can form a layer of substances obstacle around     the fiber surface. This style of dust collector filter bags filters different pollutants from the water and oil.

G- Filter Bags with PTFE Membrane Laminating-

These dust collector filer bags are employed in all the dust collector applications. The expanded     PTFE Membrane permits more air to pass through the filter media while trapping particles on the surface. Using this kind of dust collector filter bags engineers can reduce capital and     operational costs. Use of this type of dust collector filer bags also provide a degree of protection from the unknown and indirect-able  changes that sometimes occur during bag house operations.

Other types dust collector filter bags are —

1- Glass fiber Needle Punched Filter Felt
2 -Poly-P-Phenylene Sulfide(PPS) Needle- Punched Filter Felt
3-PTFE (Polytetrafluoroethylene) Needle Punched Filter Felt

Dust Collector Filter Bags is a standards product of Amrit Filtration Equipments, which is a well-known manufacturer and supplier of Dust Collector Filter Bags. The author is presently working on the designation of specialist of Dust Collector Filter Bags.

Pulse Jet Bag Filter – A Brief Introduction

Pulse Jet Bag Filter

Pulse Jet Bag Filter

On account of relatively low-cost and small-sized, pulse jet Bag filter is very famous in the solid processing industry. Now a days bag filters for bag houses are offered made from different medias and furnished to present particular filtering efficiencies while dealing with a range of temperatures, chemistry , and dampness point. Pulse Jet Bag Filter are substitution of ESP and reverse gas fabric filters as the workhouse for particulate collection for solid fuel fired power plant and industrial boilers.

This technique provides an increased particle filtration during wide range of operating circumstances. On changes in fuel or minor upset in boiler, there is no effect in the performance. In this type of filter , a wire cage in each bag keeps it safe from collapsing during typical filtration. When the flowing gas moves from the outside of the bag to the fabric, the dust substances form a coating on the surface of the bag. cleansing the Pulse Jet Bag Filter is accomplished by controlled pulses of compressed air into each filter bag through a blow pipe and orifice assembly mounted just above the filter bag. These short lifetime air pulse exits the blowpipe orifices and travel down the filter bags.

The gather dust layer is dislodged by the resulting shock wave and drops into the hoppers. in the future dust is collected from the hoppers away from the fabric filter by dust transportation system for beneficial re-usage or disposal. functioning and managing  of the fabric filter cast influence upon preservation cost as well as emission.

Feature of Pulse Jet Bag Filters

1- They are engineered using long bag technology
2-They have incorporated Gas and Dust Distribution Devices.
3-They have an superior pulse system.

Benefits of using Pulse Jet Bag Filter

1- Pulse Jet Bag Filters cut down equipment footprint.
2-They reduce field construction time and cost.
3-Their repair cost is low than others.
4-They have fewer ancillary components.
5-They advance cleansing effectivity.
6-They reduce pressure loss.
7-They cut down compressed air use and power consumption.
8-They maximize bag life.
9-They remove forced outages for fabric maintenance.
10-Clean-side preservation decreases personnel exposure to fly ash and sorbet.
11-They can be developed according to specific site.
12-Their set up cost is lower than others.
13-They cut down project lead time.
14-They reduce potential for casing leak.
15-They decrease tube sheet deflection to maintain bag alignment.
16- They reduce the impact to filter media due to excursion or abnormal operating     conditions.

Types of Pulse Jet Bag Filters

1. Online
In an online pulse jet bag filter, bag is cleaned up line by line. cleansing sequence is mechanically handled by sequence controller. This functions the simultaneously solenoid and pulse valves which direct the air flow into the manifold. The holes are jig drilled for perfect alignment with the venturi center for achieving optimum cleaning efficiency.

2. Off-line
It incorporates the benefits of a pulse jet  bag filter as well as that of a reverse air bag house. Each element of the this style of pulse jet bag filter is equivalent to online pulse jet bag filter. The cleaning technique of this form of pulse jet bag filter is made of sequentially isolating each compartment and then cleaning the isolated compartment with compressed air. Generally off-line bag filter is used for larger gas volume and suitable for light and fine dust particles.

Amrit Filtration Equipments is a famous manufacturer and supplier of Pulse Jet Bag Filter and other filtration equipments,where the author is working on the designation of professional of Pulse Jet Bag Filter.
Pulse Jet Bag Filter is a standard product of Amrit Filtration Equipments and very helpful to control air pollution.

Role of Pulse Jet Valve Engine

Functioning and properties of pulse jet valve engine

A pulse jet valve engine is a kind of jet engine that uses pulses of combustion instead of continuous combustion to stay in the air, thereby reducing fuel costs and increasing efficiency. While pulsejet valve engines have been utilized in numerous practical jets, they can also be used for a range of different applications like water heating, biomass fuel conversion, fog generators, radio maintained aircraft, target drone aircraft, control line model aircraft, and pulse detonation trials. Pulse jet valve engines are most usually used in unmanned aircraft because of problems with noise and aggressive shaking during high velocity missions. This engine is an awfully straightforward device, bit more than a hollow tube that creates thrust by burning fuel in a series of rapid pulses. This quite simple design makes the pulse jet valve engine both effortless and inexpensive enough for an amateur to develop, requiring only basic abilities and equipment. Pulsejet valve engines have become especially popular among model airplane admirers.

Operation of Pulse jet Valve

Working of Pulse jet valve engine

Fuel is extracted into the combustion chamber via the intake valve in either an air-gas mixture or liquid form. The intake valve then closes and a spark plug is used to ignite the fuel in the combustion chamber. The fuel then enlarges quickly and attempts to fill up the whole chamber in order to escape. The closed intake valve forces the fuel to the rear of the combustion chamber and permits it to leave through the exhaust valve. The fuel’s motion from one side of the combustion chamber to the other propels a fan blade or other system

Advantages

Pulsejet valve engines are simple to build on a small level and can be constructed using little or no moving parts. This signifies that the total price of each pulse jet valve engine is a lot cheaper than conventional turbine engines. Pulsejet valve engines do not produce torque like turbine engines do, and possess a higher thrust-to-weight percentage. These engines can also operate on practically any substance that can burn, probably making them a milestone in alternative fuel innovations.

Drawbacks

Although pulsejet valve engines can be advantageous to many companies, they do have several disadvantages. For instance, pulse jet valve engines are extremely noisy and vibrate so much, which just makes them practical for military and industrial purposes. Additionally, pulsejet valve engines do not have quite great thrust specified fuel consumption levels. Also, pulse jet valve engines use acoustic resonance rather than exterior compression products to condense fuels before combustion.

Types of Pulsejet Valve Engines:

There are two sorts of pulse jet valve engines: those with valves and those without. The ones with valves permit air to appear in through the intake valve and exit by way of the empty valve after combustion happens. Pulsejet valve engines without valves, make use of their own design as a valve technique and often allow exhaust to exit from both the intake and exhaust pipes, although the engine is typically created so that many of the exhaust leaves by the exhaust pipe.

The author is a professional of pulse jet valve and currently working in Amrit filtration equipments a known manufacturer of pulse jet valve

Role of Sequential Timer in Energy Consumption

Role of sequential timers in-saving energy consumption

USDE declares that up to 12 percentage of the average income implies towards paying utility expenses. Gadgets like water heaters and lights are continually in process, consistently utilizing strength. Fitting sequential timers throughout the home allows you to run some devices only when needed. This cuts energy usage, translating to cuts in the quantity of money invested on energy bills.

            Sequential Timer

The cost of hot water

Doing a laundry cycle utilizing hot water is ordinary in several homes. Several are uninformed that ninety percent of the energy consumed by the washing machine goes to heating water only. Numerous individuals are also unaware that water heating consideration for 14% to 25% of domestic power use. “Standby heat loss” relates to the energy getting taken by the water heater whilst hot water is not in use. As an example, the water heater is in process perhaps while residents of a home are departed out to work or school, contributing to standby heat losses.

The water heater sequential timers can be designed to mechanically close the water heater off throughout certain hours of the days. An Intermatic timer is especially useful in homes with older water heaters, produced prior to 1998. Setting up a timer on an older water heater would save a family of four around 14kWh/month.

Leaving the lights on when nobody is home

Do you get yourself leaving the lights in the home on overnight or while gone on vacation? For many, this action gives a sense of home protection. In fact, one will suppose a thief is more probably to burglarize a house that appears vacant. While this is a great idea with regards to house safety, lighting on common already makes a contribution to 11 percent of all domestic power utilize, and this quantity is likely greater in homes where lights are remaining on for a longer period of time. The Intermatic sequential timers for lights reduce the amount of energy lights consume while providing that feeling of home safety.

A lamp timer is uncomplicated to place and run. The Intermatic timer manufactured for lighting fixtures plugs right into a 2-prong electrical wall socket. The sequential timers provide up to 24 distinct on and off settings for each day. The lights come on when the tripper is brought out, and when the tripper is pushed in, the lights are switched off. It really is just that simple to reduce the amount of energy applied by lighting while keeping that sense of safety while you are apart from your home.

Equipments can be energy wasters too

Heavy duty devices, such as heaters and air conditioners, can simply be left running for hours at a time. Intermatic sequential timers are available for devices including these. Because with a water heater and lamp timer, equipment sequential timers provide a range of setup that enable heavy duty appliances to simply be in procedure throughout particular durations of the day.

The current energy crisis the world is facing has many people interested in “going green” and learning how to save more energy. At the same time, people may be afraid to go outdoors
The writer is presently working as a technician of sequential timer which is a good quality product of Amrit Filtration Equipments, the renowned manufacturer and supplier of sequential timers.

Use of geotextiles and geotextile fabric in present industry

Every textile product applied under the soil is a geotextile fabric. The products are employed for reinforcement of streets, embankments, ponds, pipelines, and similar programs. Based on the essential purpose, they are utilized in open-mesh variations, such as a woven or, rarely, warp-knitted structure, or with a closed Filter fabrics surface, like a nonwoven. The fundamental geotextiles capabilities include erosion control; protection; purification; armoring; draining; and separating, or hurdle functionality.

Geotextiles with their built-in capabilities are nearly tailor-made based on application. Significant necessities contain tensile strength; permeability to air, fluids and/or light; mesh size suited to end-use, such as filtering, sieve or separating; chemical, mechanical or thermal resistance; and longevity.

Geotextile Fabrics
Many woven geotextiles are made of filament polyester (PET), polypropylene (PP), glass, basalt, aramid or carbon fibers; with the fiber selected depending on the needed features, primarily tensile strength and a really lengthy product existence. Typical end-use applications are roads, levees and railroad embankments, among other purposes. Nonwoven geotextiles, generally created of PP and PET, are mainly applied for barrier function end-uses such as filtering. Additionally, nonwovens built of natural geotextile fabrics, as an example, are suitable for protecting grass slopes. It is possible to include distinct sorts of seeds, like grass, and the nonwoven cover will eventually break down as a green and natural surface develops on the construction.

Bast geotextile fabric fibers, with their non-uniform fiber attributes, are beginning to be employed in certain nonwoven products. The same applies for re-cycled fibers. Nowadays, very few re-used fibers are utilized. Additionally, reprocessed fibers do not always own the consistent properties required to form an even item. When PET bottles are re-cycled in a means that produces uniform fibers, then re-cycled PET fibers could be prepared using needle punch technologies

Coating resources play a very essential position in improving geotextile fabric attributes and features. Main coating materials employed incorporate polyvinyl chloride, bitumen, latex, plastisol, silicone and other related materials.

Important Sector
For each organization, the geotextiles sector is an essential industry. Trützschler Nonwovens is in a position to deliver lines for man-made fiber manufacturing as well as calenders or bonding machines such as its Omega machine. The company reports lines currently delivered for geotextile fabric manufacturing have got a manufacturing potential of more than 1,500 kilograms per hour and even at low filter fabrics weights of 60 to 80 grams per square meter.

Dilo and Fleissner report there is an essential upswing for nonwovens in normal and Geotextiles in specific. The benefit of nonwovens as geotextile products is first of all their quantity and cost-effective creation. One more criterion is their capability to extend and conform to bumpy surfaces. Of excellent significance is the complete product’s Geotextile fabric width for efficient and economical road — or, significantly, harbor — developments.

However, geotextiles, which need higher toughness, normally are fabricated from woven fabrics. Dornier states its weaving machines are specifically acceptable for production of open-mesh Filter fabrics for armoring all kinds of developments. A number of layers of several constructions can be blended. Filter fabricss also require to be created in a large thickness. Typically, machines with a nominal width of 540 cm and greater are utilized, while the hauling equipment for street construction is typically intended to possess a 500-cm width.

Use of Non woven Fabric for erosion control

Non woven Fabric

Non woven Fabric is often a fabric thing manufactured by way of long fibers, glued collectively by chemical, mechanical, heat or solvent treatment. Non woven Fabric is neither woven nor knitted.  Non woven is generally manufactured by putting small fibers together in the form of a sheet or web and then binding them either mechanically or chemically with an adhesive.

Non woven cloths are commonly less strong due to not knit. In recent years, non woven have become an option to polyurethane foam. Non woven fabric is broadly defined as sheet or web structures glued together by entangling fiber or filaments (and by perforating films) mechanically, thermally or chemically. It is flat, porous sheets that are manufactured directly from separate fibers or from molten plastic or plastic film. It is not made by weaving or knitting and do not require converting the fibers to yarn. Typically, a certain percentage of recycled fabrics and oil-based objects are used in non woven fabric. The percentage of recycled fabrics varies based upon the strength of product needed for the specific use.

Non woven fabric is developed fabrics that may be a limited life, single-use fabric or a very durable fabric. Non woven fabric provides specific functions such as absorbent, liquid repellent, resilience, stretch, softness, strength, flame retardant, washable, cushioning, filtering, bacterial barrier and sterility. These properties are often combined to create material suitable for specific work, while achieving a good balance between product use-life and cost. It can mimic the appearance, texture and strength of a woven fabric and can be as bulky as the thickest padding. In blend with other materials it provides a spectrum of products with diverse properties, and is used alone or as components of apparel, home furnishings, health care, engineering, industrial and consumer goods. Non-woven fabric has its features, which are as follows:

Characteristics of Non-Woven Fabrics
Non-woven fabric can perform the following specific functions:
It can be absorbent.
It can be liquid repellent.
It can be resilient.
It can be stretchable.
It can be delicate.
It can have good strength.
It can be flame resistant.
It can be washable.

Non-woven materials are used in several applications including:
1- Hygienically
It can be used in baby nappies
It can be used in feminine hygienic
It can be used in adult incontinence items
It can be used in wet wipers
It can be used in bandages and injuries dressings
2- Medically
It can be used in isolation gowns
It can be used in surgery gowns
It can be used in surgical drapes and covers
It can be used in medical surgery scrub suits
It can also be used in medical surgery masks.

3- Engineering Field
It can be   used in filtering systems of gasoline, oil and air
It can be used in water filter systems, and coffee or tea bags
It can be used in pharmaceutical industry and pharmaceutical laboratories
It can be used in refineries for mineral processing
It can be used in food processing plants as liquid cartridge and bag filters

4- Geotextiles
It can be used in soil stabilizers and roadway underlay ment
It can be used in foundation stabilizer tool
It can be used in erosion control
It can be used in canal’s engineering
It can be used in water flow systems
It can be used in Geo membranes safety
It can be used in frost safety
It can be implemented in agriculture mulch
It can be used in pond and canal water barriers
It can be used in sand infiltration barrier for drainage tile
The writer is a non woven fabric expert & working at Amrit filtration equipments. Amrit filtration is one of oldest Manufacturing expert in Non woven fabric and filtration fabric.

Filter fabric

Filter Fabric

Filter Fabric is appropriate to control transfer of dirt and route of flow. In some older engineered filter fabric put on the top of the gravel bed is utilized to handle sediment dispose of into the graved bed. This type of filter fabric must fulfill a minimum rate 75 gal/min/ft*ft and should not impede the filtration rate of the soil medium. Filter Fabric can be installed all along the wall of the facility to assist direct the water flow down and to reduce lateral flows. Filer fabric can be placed along the side walls when installing a facility in a median strip or parking lot land to prevent lateral flow under pavement.

Types of Filter Fabric-

1- Vinylon Filter Fabric-
Filter Fabric of this type is of poor conformability and flexibility. It is a inadequate acid resistive but good wear resistant. It durable 1-2 times than 100 percent cotton. The strongest point of this filter fabric is its strong resistant to alkalinity, which is a good hygroscopic and is easy to merged with rubber. It is a very good stuff for rubber industry. Its weak point is that it cannot avoid high temperature. It shrinks when heat range rises above from 100 degree Celsius.

2-Nylon Filter Fabric-
Filter Fabric of this range is compound resistant. It is alkali -proof, repellent to hydrolysis, anti oxidation, anti-mildew, googwear -proof, adapt to low temperature. It is usually used in chemical, fertilizer, building product, sugar, vacuum filter, belt filter for instance solid liquid centrifugal fiber tools and machines of separation.

3- Polypropylene Filter Fabric-
Polypropylene filter fabric as raw materials is categorized into three classes such as polypropylene staple fiber, polypropylene fiber and polypropylene mono filament.
Filter fabric of this class is acids resistant and alkali proof. It is also resistive to hydrolysis, anti oxidation, anti-mildew googwear resistive and adaptable in low temperature. It is proposed for chemical, fertilizer, building materials, sugar, vacuum filters etc.

4-PTFE needle punch felt- PTFE needle punch felt is implemented in cement plants, metallurgy sector, chemical industry, Dyestuff industry, Engineering sector, and pharmacy and foodstuff industry. Its material is polyester, PTFE membrane. It weigh in gram per square meter is 500.  Its thickness is 1.8.

5-Polyester wire mesh-
It is implemented in pharmaceutical, food stuff, compound and metallurgic companies.

6-non woven cloth-
Its characteristics are as follows-
It has no water consumption capability.
It has shrinkage.
It has high tensile.
It is robust.
It is small air resistant, high efficiency for collection dust substances.

7-Breathable Panels filer fabric-
It is utilized for production surgery face masks and plant face masks.

PTFE coating dust filer fabric-
It can purify in normal atmospheric temperature or high temperature gas corroding gas mixed with acid and alkali water, oil widely used in metallurgic , chemical industry, building material, smelting generation ,electricity ,pottery, machinery, mine ,petroleum, grain processing . It is an ideal media to filter and filter material.

Other types of filter fabric are as follows-
A- pp mono filament fabric
B-filter cloth
C-geo textile filter cloth
D-nylon wire cloth
E-polypropylene weaving filter cloth 750 B
F-polyester filter cloth

The writer is a professional of non woven fabric and working in Amrit Filtration Equipments. Amirt Filtration Equipments is a famous manufacturer of Filter Fabric. Filter Fabric is an essential part filtration system in manufacturing and processing plants.

Filter cloth

Filter Cloth

Filter Cloth is the device of filtration process. Filter cloth is   of woven or non woven fabrics of fiber, cotton or wool. The woven filter cloth is knitted as traditional cloth, but non woven is sediment.
Non woven filter cloth is generally manufactured by putting small fibers in the form of sheet or web and then binding them either mechanically or chemically with an adhesive. Non woven filtration fabric is less strong; it can be tearing very easily. The woven category of filter cloth is robust than non woven.
Filter cloth’s robustness is calculated for tensile and bursting strength. Filtration degrees are secondary to the strength measurements. Liquid filters are those who found in oil filtration system, are evaluated for strength and filtration ability also. The flow of liquid is calculated in pounds per square. Tensile strength is also evaluated in pounds. The specific of measurements is depending upon the type of fabric and the function of the fabric. An absolute rating of 10 microns does not imply a strong filter.
Now a day’s filter cloth is available in different colors and sizes according to the requirements.
Measurement of filtration rate of filter cloth is done in microns. Micron is similar term to micro meter. The micron is the smallest scale on which filter cloth handles filtration process. Rating of 10 microns mean that the filter can trap substances that have diameter of 10 micro meters. commonly human hair’s diameter  is about 70 micrometer. Usually bacteria are between 1 to 10 microns.

Effectiveness of Filter Cloth:-

The efficiency of a filter cloth denotes accuracy of filtration level. An efficiency level of 50% at 10 microns means that filter will trap half of all crystals 10 microns in size, which is a typical rating. If a filter is effective to filter 98% or higher of the measured micron level. Good filters should have a high-efficiency rating for the size elements that are mean to be filtered. Liquid filters having absolute rating at 10 microns are known as very good filters.

Types of Filter Cloth:-
Type A:-
Type A filter cloth is a woven or non woven. It suits the following standards.
Grab Tensile Strength (ASTM D 1682) 90lbs.min.
Bursting Strength (ASTM D 751)            100 psi.min.
Equivalent Opening Size (EOS)       minimum 40, and maximum 100

Type B-
Type B filter cloth is a woven or non woven. It matches the following standards.
Grab Tensile Strength (ASTM D 1682) 200lbs.min.
Bursting Strength (ASTM D 751)            500psi min.

Type C-
Type C filter cloth is woven or non woven. It meets the following standards.

Grab Tensile Strength (ASTM D 1682) 200lbs.minimum.
Grab Tensile Elongation (ASTM D 1682)      30 percent maximum.
Bursting Strength (ASTMD 751)       290 psi minimum
Trapezoid Tear Strength (ASTM D 1117)     50 lbs. minimum
Puncture Strength (ASTM D 751)            75lbs. Minimum (using 5/15” flat tripod pod)
Water permeability (AASHTO 288)           0.001 cm/sec. Minimum (5 cm constant head)

Usages of Filter Cloth:-
Filter cloth is used in various fields, which are as follows:

Hygiene
In hygiene filter cloth is used in baby diapers, feminine cleanliness, adult incontinence items, wet wipers, bandages and wound dressings.

Medical
In medical field filter cloth is used in isolation gowns, surgical gowns, surgical drapers and covers, surgical scrub suits and surgical masks.

Engineering
In engineering discipline filter cloth is used filtration system of gasoline, oil and air, coffee or tea bags, medical laboratories, refineries and food processing plants.

Geotextiles
As a Geo-textile it is used in soil stabilizers, erosion check, canals construction, water flow systems etc.

Article writer is a professional technician in Amrit Filtration Equipments. He has an experience of decades in this field. Amrit Filtration Equipments is a world famous manufacturer of filtration fabrics and non woven fabric.

Filter fabric

Filter Fabric

Filter Fabric is essential to check dispose of dirt and route of flow. In some older engineered filter fabric put on the top of the gravel bed is employed to check sediment transportation into the graved bed. This type of filter fabric must fulfill a minimum rate 75 gal/min/ft*ft and should not impede the filtration rate of the soil medium. Filter Fabric may be located all along the wall of the facility to help direct the water current down and to reduce lateral flows. Filer fabric can be placed along the side walls when installing a facility in a median strip or parking lot land to prevent lateral flow under pavement.

Types of Filter Fabric-

1- Vinylon Filter Fabric-
Filter Fabric of this form is of weak conformability and flexibility. It is a inadequate acid resistant but good wear resistive. It durable 1-2 times than 100 percent cotton. The most effective point of this filter fabric is its strong resistant to acid, which is a good hygroscopic and is easy to mixed with rubber. It is a very good fabric for rubber industry. Its weak point is that it cannot repel high temperature. It shrinks when temperature rises above from 100 degree Celsius.

2-Nylon Filter Fabric-
Filter Fabric of this range is acids resistant. It is alkali -proof, resistant to hydrolysis, anti oxidation, anti-mildew, googwear -proof, adapt to low temperature. It is largely used in chemical, fertilizer, building substance, sugar, vacuum filter, belt filter such as solid liquid centrifugal fiber equipments and machines of separation.

3- Polypropylene Filter Fabric-
Polypropylene filter fabric as a raw material is categorized into three categories such as polypropylene staple fiber, polypropylene fiber and polypropylene mono filament.
Filter fabric of this kind is compound repellent and alkali proof. It is also proof to hydrolysis, anti oxidation, anti-mildew googwear resistant and adaptable in low temperature. It is proposed for chemical, fertilizer, building materials, sugar, vacuum filters etc.

4-PTFE needle punch felt- PTFE needle punch felt is applied in cement plants, metallurgy sector, chemical industry, Dyestuff business, engineering sector, and pharmacy and foodstuff industry. Its material is polyester, PTFE membrane. It weigh in gram per square meter is 500.  Its density is 1.8.

5-Polyester wire mesh-
It is utilized in pharma, food stuff, chemical and metallurgic companies.

6-non woven cloth-
Its characteristics are as follows-
It has no water consumption efficiency.
It has decrement.
It has high tensile.
It is effective.
It is small air resistant, high efficiency for collection dust elements.

7-Breathable Panels filer fabric-
It is used for producing medical surgery face masks and plant face mask.

PTFE coating dust filer fabric-
It can filter in normal atmospheric temperature or high temperature gas corroding gas mixed with acid and alkali water, oil widely used in metallurgic, chemical industry, building material, smelting generation ,electricity, pottery, machinery, mine, petroleum, grain processing . It is an ultimate media to cleanse and filter material.

Other types of filter fabric are as follows-
A- pp mono filament fabric
B-filter cloth
C-geo textile filter cloth
D-nylon wire cloth
E-polypropylene weaving filter cloth 750 B
F-polyester filter cloth
The writer is a professional of Filter Fabric and working in Amrit Filtration Equipments. Amirt Filtration Equipments is a renowned manufacturer of Filtration Fabrics and non woven fabric. Filter Fabric is an essential part filtration system in manufacturing and processing plants.

Non woven fabric

Non-woven –fabric

Non woven -fabric really is a fabric-like product created thru long fibers, bonded collectively by chemical, mechanical, heat or solvent treatment. Non woven Fabric is neither woven nor knitted. Non woven is normally manufactured by putting small fibers together in the variant of a sheet or web and then binding them either mechanically or chemically with an adhesive.
Non woven materials are usually less strong due to not knit. In recent years, non woven have become an alternative to polyurethane foam. Non woven fabric is broadly defined as sheet or web structures glued collectively by entangling fiber or filaments (and by perforating films) mechanically, thermally or chemically. It is flat, porous sheets that are manufactured directly from independent fibers or from molten plastic or plastic film. It is not manufactured by weaving or knitting and do not require converting the fibers to yarn. Typically, a certain percentage of recycled fabrics and oil-based products are used in non woven fabric. The percentage of recycled fabrics varies based upon the strength of material needed for the specific use.
Non woven fabric is engineered fabrics that may be a limited life, single-use fabric or a very durable fabric. Non woven fabric provides specific functions such as absorbent, liquid repellent, resilience, stretch, softness, strength, flame retardant, washable, cushioning, filtering, bacterial barrier and sterility. These characteristics are often combined to create material suitable for specific work, while achieving a good balance between product use-life and cost. It can mimic the appearance, texture and strength of a woven fabric and can be as bulky as the thickest padding. In mixture with other materials it provides a spectrum of products with diverse characteristics, and is used alone or as components of apparel, home furnishings, health care, engineering, industrial and consumer goods. Non-woven fabric has its features, which are as follows:
Characteristics of Non-Woven Fabrics
Non-woven fabric can perform the following specific functions:
It can be absorbent.
It can be liquid repellent.
It can be resilient.
It can be stretchable.
It can be soft.
It can have good robustness.
It can be flame resistant.
It can be washable.

Non-woven materials are used in several purposes including:
1- Hygienically
It can be used in baby diapers
It can be used in feminine hygiene
It can be used in adult incontinence products
It can be used in wet wipers
It can be used in bandages and injuries dressings
2- Medically
It can be used in isolation clothes
It can be used in surgical gowns
It can be used in surgical drapes and covers
It can be used in medical surgery scrub suits
It can also be used in medical surgery masks.

3- Engineering Field
It can be used in purification systems of gasoline, oil and air
It can be used in water filters, and coffee or tea bags
It can be used in pharmaceutical industry and pharmaceutical laboratories
It can be used in refineries for mineral processing
It can be used in food processing plants as liquid cartridge and bag filters

4- Geotextiles
It can be used in soil stabilizers and roadway underlayment
It can be used in foundation stabilizers
It can be used in erosion check
It can be used in canal’s construction
It can be used in drainage systems
It can be used in Geo membranes safety
It can be used in frost protection
It can be implemented in agriculture mulch
It can be used in pond and canal water barriers
It can be used in sand infiltration barrier for   tile

The writer is a non woven fabric specialist & is a part of Amrit filtration equipments. Amrit filtration is one of oldest Manufacturing expert in Non woven fabric and filtration fabrics.