Yarns for Filtration Fabrics
Technical yarn solutions for industrial filtration — from general-purpose filter press cloths to high-temperature baghouse systems and chemically aggressive process environments. SageZander helps manufacturers match the right fibre to every application.
Specialist Technical Yarn Supply · UK & Europe
6
Key fibre types
260°C
Max temp capability
EU & UK
SUPPLY NETWORK
Mono & Multi
Filament options
APPLICATIONS
Industrial Filtration Across Multiple Sectors
Filtration fabrics play a vital role across countless industries — separating solids from liquids or gases while maintaining process efficiency, product quality, and environmental compliance. The choice of fibre determines the filter’s chemical resistance, temperature capability, mechanical strength, and service life.
Filter Press & Belt Press
Dust Collection & Baghouse
Chemical Processing
Wastewater Treatment
Power Generation & Flue Gas
Food & Beverage Production
Pharmaceutical Filtration
Mining & Mineral Processing
At a Glance
Choosing the Right Fibre for Your Process
No single filtration fibre suits every application. Temperature capability and chemical environment are typically the two decisive factors — this overview helps narrow the field before a detailed technical discussion.
| Fibre | Max Continuous Temp | Temperature Range | Best Environment | Typical Use |
|---|---|---|---|---|
| Polyester (PET) | ~130°C | Acidic · Neutral | Filter press Dust collection | |
| Polypropylene (PP) | ~90–100°C | Acid & Alkali resistant | Chemical processing Electroplating | |
| Nylon (PA6 / PA66) | ~120–150°C | Neutral · Wet | Precision meshes Sieving | |
| Meta-Aramid | ~200°C | Hot · Dry gas streams | Cement kilns Foundries | |
| PPS | ~190°C | Acidic gas streams | Power stations Incinerators | |
| PTFE | ~260°C | Near-universal chemical resistance | Pharma High-efficiency dust |
Yarn Portfolio
Filtration Yarns Supplied by SageZander
SageZander sources and supplies filtration yarns in monofilament, multifilament, and spun formats — working with manufacturers to select the correct fibre type, count, and format for each application.
Polyester (PET) Yarns
The most widely used fibre in industrial filtration. Polyester offers an excellent balance of tensile strength, abrasion resistance, dimensional stability, and cost — making it the default choice for a broad range of liquid and dry filtration applications.
Key Benefits
- High tensile strength and outstanding abrasion resistance
- Good dimensional stability through repeated cleaning cycles
- Suitable for both liquid filtration and dry dust collection
- Performs well in acidic environments
- Industry standard for needlefelt dust collection bags at moderate temperatures
Applications
Available Formats
Polypropylene (PP) Yarns
The preferred fibre where chemical resistance is the primary requirement. Polypropylene withstands both acids and alkalis effectively, making it the go-to material for aggressive liquid filtration processes where polyester or nylon would degrade.
Key Benefits
- Excellent resistance to both acids and alkalis
- Virtually zero moisture absorption — stable filtration performance throughout service life
- Lightweight material — easier handling and installation
- Readily recyclable
- Cost-effective for chemically demanding applications
Applications
Available Formats
Meta-Aramid Yarns
The principal choice for high-temperature dust collection and baghouse filtration systems. Meta-aramid fibres deliver thermal stability, inherent flame resistance, and mechanical durability at continuous operating temperatures around 200°C.
Key Benefits
- Continuous operating temperatures around 200°C
- Inherently flame resistant — does not melt or drip under heat exposure
- Excellent abrasion resistance and long service life in hot gas filtration
- Suitable for baghouse systems where polyester would rapidly degrade
Applications
Available Formats
Nylon (Polyamide) Yarns
Chosen where mechanical toughness, flexibility, and abrasion resistance take priority. Precision-woven nylon meshes offer tightly controlled pore sizes — from a few microns to several millimetres — making them ideal for accurate particle separation.
Key Benefits
- Exceptional abrasion resistance and resistance to repeated flexing
- High strength suitable for mechanically demanding applications
- PA66 offers slightly higher temperature capability and better wear resistance
- PA6 is cost-effective and more dimensionally stable in wet environments
Applications
Available Formats
PPS (Polyphenylene Sulphide) Yarns
PPS has become one of the most important high-performance fibres for industrial air pollution control. Where polyester degrades and meta-aramid has chemical limitations, PPS provides the right combination of temperature resistance and chemical durability.
Key Benefits
- Excellent resistance to acids and chemical contaminants in flue gas streams
- Continuous operating temperatures typically reaching around 190°C
- Long service life in power generation and waste incineration baghouse systems
- Increasing importance as environmental legislation demands higher emission control
Applications
PTFE Yarns & Membranes
The premium choice for the most demanding filtration environments. PTFE’s near-universal chemical resistance combined with operating temperatures approaching 260°C makes it the specification when no other fibre will perform reliably.
Key Benefits
- Near-universal chemical resistance to acids, alkalis, solvents, and industrial chemicals
- Highest continuous operating temperature — approaching 260°C
- Excellent release characteristics and low-friction surface
- Available as woven fabrics, needlefelts, membranes, and laminated composites
- PTFE membrane technology supports very low emission baghouse performance
Applications
Application Guide
Matching Fibre to Process Environment
Fibre selection in filtration is an engineering decision, not a commodity choice. The right material reduces maintenance costs, extends filter life, improves process efficiency, and avoids premature failure.
Cost-Effective General Filtration
- Consider polyester as the starting point
- Monofilament or multifilament depending on fabric construction
- Antistatic variant for dry powder applications
Chemically Aggressive Liquids
- Polypropylene for broad acid and alkali resistance
- PTFE where extreme chemical conditions apply
- Confirm temperature does not exceed PP limits
High-Temperature Dust & Gas
- Meta-aramid for clean hot gas streams to ~200°C
- PPS where acid gases are also present
- PTFE for highest temperatures and lowest emissions
Precision Separation & Sieving
- Nylon monofilament for accurate pore size control
- PA66 for higher wear resistance and temperature
- PA6 for cost efficiency in wet environments
Frequently Asked Questions
Common Questions About Filtration Yarns
Questions manufacturers and filtration equipment designers frequently ask when specifying yarns for industrial filter fabrics.
What yarns are used in industrial filtration fabrics?
The most widely used fibres in industrial filtration fabrics are polyester (PET), polypropylene (PP), meta-aramid, nylon (PA6 and PA66), PPS (polyphenylene sulphide), and PTFE (polytetrafluoroethylene). The correct choice depends on the process temperature, chemical environment, required particle separation, mechanical demands, and budget. SageZander can assist with fibre selection across all of these types.
What is the best yarn for filter press cloths?
Polyester and polypropylene are the most commonly specified yarns for filter press cloths. Polyester offers high strength, excellent abrasion resistance, and reliable cake release in neutral to mildly acidic environments. Polypropylene is preferred where the process stream is chemically aggressive — it provides excellent resistance to both acids and alkalis at temperatures up to around 90–100°C. SageZander supplies both monofilament and multifilament formats for filter press applications.
Which fibre is best for high-temperature dust collection and baghouse filtration?
Meta-aramid is widely specified for high-temperature dust collection at continuous temperatures around 200°C — particularly in applications such as cement kilns, asphalt production plants, foundries, and industrial boilers. PPS is preferred where the gas stream also contains acidic contaminants, as it combines thermal stability with superior chemical resistance. For the most extreme environments, PTFE provides the highest temperature capability and near-universal chemical resistance.
What is the difference between PA6 and PA66 nylon for filtration?
PA66 (nylon 66) generally operates at slightly higher temperatures than PA6 and typically offers better wear resistance, making it the preferred choice for more demanding mechanical applications. PA6 is generally less expensive and is more dimensionally stable in wet environments. SageZander supplies PA6 monofilament and both PA6 and PA66 multifilament yarns, depending on application requirements.
Is PTFE being restricted due to PFAS regulations?
PTFE is a fluoropolymer and falls within the scope of ongoing PFAS regulatory reviews in the EU under REACH. The European Chemicals Agency (ECHA) is reviewing a proposal that could restrict a wide range of PFAS uses, including fluoropolymers such as PTFE. However, exemptions are anticipated for critical industrial applications where no adequate alternative currently exists. Manufacturers specifying PTFE filtration media should monitor regulatory developments and seek guidance on their specific application.
Does SageZander supply antistatic yarns for filtration?
Yes. SageZander supplies antistatic polyester yarns suitable for weaving or knitting into filtration fabrics used in dry powder processing environments. Eliminating static build-up is important where dry materials are filtered and the risk of ignition during processing must be minimised — for example in powder processing, pharmaceutical manufacturing, and certain food applications.
Discuss Your Filtration Yarn Requirements
Whether you are developing a new filter fabric construction or looking to improve the performance or service life of an existing product, SageZander can help identify the right yarn solution.