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Brush Filament

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Nantong NTEC Monofilament Technology Co.,LTD.: Your Professional Brush Filament Manufacturer!

 

Nantong NTEC Monofilament Technology Co.,LTD is a national high-tech enterprise focusing on research and development, production and sales of polymer monofilament. NTEC has two large fields of business including monofilament yarn and polymer line and wires. For Polymer line and wires, NTEC focuses on research and development of sports leisure and modern agriculture with grass trimmer line, fishing line, polyester wire (belt), tennis string, badminton string, etc.

 

Strong Production Capability
The company covers an area of 65000 square meters, with construction area of 116000 square meters and 218 advanced large diameter functional polymer drawing production lines, ranking first in production scale and market share in this field.

 

Quality Assurance
We have obtained IOS9001 system certification, SGS factory certification, GRS, SGS, MSDS, Oeko-Tex and other product certification.

 

Broad Market
The company has a professional sales team of nearly 100 people serving the global market. Its products cover more than 20 provinces and cities including Jiangsu, Shanghai, Zhejiang, and are exported to countries and regions such as the United States, Japan, Europe, and Southeast Asia.

 

Leading Service
Our services are refined and standardized. From pre-sales technical consultation to after-sales maintenance, we always put customer needs first and continuously innovate our service value system.

NTEC Group is a top-class monofilament manufacturer in China. Enterprise mainly engaged in the research, development, production, and sales of polymer monofilaments.
According to market demand, we have developed various brush filaments such as PBT, PTT, PA6, PA66, PA610, PA12
PP, PE, PPS, PLA

What is Brush Filament

 

 

Filament refers to the bristles or fibers on the working surface of a brush. There are many different types of industrial brushes, and the difference between each type of brush is the type of filament material used.

 

Types of Brush Filament

Here are the three most common brush filament materials:

 
 

Metals

Brush filaments made from metal materials are used in applications that require strong, sharp, and powerful bristles, typically for deburring and cleaning. The most common metal wires are made from brass, bronze, carbon steel, and stainless steel.

 
 
 

Natural Fibers

These filaments are soft, all-natural, and often used in painting applications. They include animal hair fibers such as Chongqing bristle, white pig bristle, horse hair, and goat hair. There are also plant fibers such as tampico and agave.

 
 
 

Synthetics

Filaments made from man-made materials have excellent bend recovery and are often used in applications that require damage tolerance and chemical resistance. These include nylon, anti-static nylon, polyvinyl chloride, polyethylene, and styrene.

 

 

Applications of Brush Filament

 

Polypropylene (PP) brush wire has the characteristics of acid and alkali resistance, but the elasticity is not very good. It is easy to deform and difficult to recover after long-term work, so it is suitable for industrial dust removal and cleaning for rough parts, such as dust removal at mine docks, sweeping brushes of sanitation vehicles, etc.

 

Nylon 610 (PA66, PA6) brush wire has good wear resistance, high temperature resistance, acid and alkali resistance, good elasticity, and is suitable for household dust removal and cleaning brush parts, such as vacuum cleaner roller brushes, brush rollers, brush platforms, etc.


Nylon 612 or nylon 1010 has the highest elasticity and cost, but its wear resistance is not as good as 610. It has a relatively outstanding appearance, and its impact resistance and anti-aging properties are also very good. It is most suitable for industrial equipment and dust-proof parts such as doors and windows.

 

The elasticity of pbt wire is better than that of nylon brush wire, but its wear resistance is not as good as 610. The performance of pbt is softer, and it is most suitable for cleaning and decontamination of fine parts, such as automobile surface cleaning, air conditioning duct cleaning, etc.

 

PE wire is the softest of several types of brush wires. It is often used in car cleaning brushes. With the addition of a fleece process, it is easy to protect the car paint surface.

 

Pig bristles are often used for polishing bath brushes or precious objects, such as gold, gemstones, pianos, etc., and are also suitable for polishing and grinding of hard alloys.

 

Horse hair is softer than pig bristles and is easier to remove floating dust. It is often used in high-end household cleaning products or suitable for industrial removal of floating dust.

 

Metal wires such as steel wire and copper wire are generally used for deburring metal surfaces and have good wear resistance.

 

Abrasive nylon wire (divided into silicon carbide abrasive wire, aluminum oxide abrasive wire, and diamond abrasive wire) has good wear resistance and acid and alkali resistance. It is often used in PCB surface treatment, galvanized plate pickling line, metal processing, polishing and deburring.

 

Sisal brush wire has good toughness, high temperature resistance, and grease absorption. It is often used for pot brushes or high temperature, degreasing, etc.

 

How to Product Brush Filament

 

The production process of brush wire is as follows: After the template is installed, the dried raw materials are mixed and configured in proportion, and then melted and extruded after high-temperature heating. The wire passes through the cooling water tank and is stretched. This operation is pulled out by the drafting machine roller, and the brush wire is oiled and hardened through the hot air box.

 

The brush wire is shaped and oiled to increase its smoothness. The manual process is mainly the recycling machine rewinding the brush wire, the workers change the wire and then cut it, the combing worker combs the wire and then packages it, the quality inspector inspects the product and then puts it into storage, and finally ships it.

 

How to Choose Brush Filament

 

 

With so many brushes to choose from, finding the right brush for your application can be difficult. Therefore, it is important to keep the following considerations in mind when trying to choose the right filament for your application:

Filament Length and Diameter
The size of the filament is crucial when choosing the right filament for your application. Shorter filaments are generally stiffer and are ideal for aggressive or heavy-duty applications. On the other hand, longer filaments offer more flexibility and are ideal for brushing uneven surfaces. Typically, filaments are round, but there are several alternative bristle shapes available. Generally, thicker filaments are more ideal than thin bristles when it comes to more aggressive applications, such as heavy-duty deburring. Choosing a filament that is insufficient in length or has the wrong bristle diameter for your specific application can lead to premature depletion of the filament, requiring replacement, which is not cost-effective if done habitually.

 

Filament Properties
In addition to the physical properties of the filament, you should also consider other properties, such as:


Softness or Hardness
The tensile modulus is a measure of the hardness of the filament. The higher the tensile modulus, the stiffer the bristles. On the other hand, the ability of a filament to return to its original position after being bent is known as bend recovery. Likewise, the application is a factor in determining whether you need a soft or stiff filament.

 

Hygroscopicity
Some bristles have varying degrees of hygroscopicity. For example, natural fibers tend to absorb water, which makes them unsuitable for wet applications. In contrast, synthetic filaments retain their stiffness even after being soaked in liquids, making them suitable for wet applications.

 

Chemical resistance
Chemicals are often used in cleaning, disinfecting, and degreasing processes. Depending on their concentration, chemicals can degrade plastic or synthetic materials over time, causing filament damage.

 

Abrasion resistance
The ability of bristles to resist wear and tear is an important factor when considering cost-effectiveness. You should choose bristles with high bend recovery and fatigue resistance, which refers to the number of times a bristle can be bent back and forth before it inevitably breaks.

 

Temperature resistance
Some bristles soften and melt over a range of temperatures. For example, ultraviolet light can cause rapid degradation of synthetic materials and some polymers.

 

How to Maintain Brush Filament

 

After each use, brushes should be cleaned to remove any accumulated debris, dust or residue. Compressed air, mild solvents or simply tapping the brush to remove trapped particles can be used. For brushes used in wet applications, make sure they are properly dried to prevent wire degradation or core corrosion.

 

Store brushes in a dry and cool environment away from direct sunlight or extreme temperatures. Brushes should be hung or stored in a way that prevents the wire from being squeezed or bent, as this will affect their effectiveness.


Always adhere to the recommended RPM and feed rate for your brush. Running a brush at too fast a speed can cause premature wear and potential damage. Ensure that pressure is evenly distributed during use. Excessive pressure can cause wire breakage or uneven brush wear.

 

Regularly inspect brushes for signs of wear, wire breakage or core damage. This helps determine when a brush is nearing the end of its life and needs to be replaced. Ensure the brush's attachment mechanism (such as threads or shank) is in good condition and securely mounted to the machine.

 

If possible, consider rotating brushes for specific tasks. This ensures that individual brushes are not overused and can extend the overall life of the brushes.

 

In applications where heat buildup is a concern, using an appropriate lubricant or coolant will not only improve the finish, but also extend the life of the brushes by reducing wire wear due to heat.

 

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Frequently Asked Questions

Q: What materials are used in abrasive wire brushes?

A: The heart of an abrasive wire brush lies in its unique composition. These brushes are more than just conventional wire dusted with abrasive; they are carefully engineered with specific materials to ensure maximum effectiveness.
1) Wire Base
Typically, the base wire material is a strong synthetic polymer such as nylon. Nylon is favored for its durability, chemical resistance, and ability to effectively hold abrasive particles.
2) Abrasive Particles

Q: What are some common abrasive materials?

A: Silicon Carbide: Known for its hardness and sharpness, it is ideal for precision applications.
Aluminum Oxide: A durable and versatile abrasive suitable for a wide range of applications.
Diamond: Used in brushes designed for the most demanding and abrasive applications, such as grinding hard metals or ceramics.
What are the steps in the Abrasive Grit Encapsulation Process?
Encapsulating the abrasive particles within the wire is a critical process that determines the effectiveness of the brush. The process typically involves:
Mixing: Thoroughly mixing the selected abrasive particles with the molten nylon (or other polymer material). This ensures that the abrasive particles are evenly distributed.
Extrusion: The polymer mixture containing the abrasive is then extruded into filaments. As the filaments cool and solidify, the abrasive particles are encapsulated within them.
Cutting: Once solidified, these filaments are cut into the desired lengths, ready for brush construction.
Encapsulation ensures that as the outer layer of the filaments wears away, new abrasive particles are exposed, allowing the brush to maintain its abrasive qualities throughout its life.

Q: What are the designs of abrasive wire brushes?

A: The brush core, often referred to as the backbone of the brush, is critical to maintaining the shape of the brush, ensuring even pressure distribution, and providing a method of attaching the brush to the machinery. The brush core is typically made of materials such as steel, aluminum, or plastic, depending on the intended use and mechanical compatibility. The design of the brush core will vary depending on the application of the brush. Common designs include:
Wheel brushes: Wheel brushes have a radial design with filaments protruding outward, which is suitable for surface preparation and edge blending.
End brushes: Designed with filaments on one end, they are ideal for reaching corners and intricate parts.
Tube or spiral brushes: These brushes have a cylindrical design and are ideal for cleaning inside holes or pipes.
Depending on the machine, the brush core may be designed with a threaded hole, shank, or other connection mechanism to ensure a secure fit.

Q: What are the specific applications of abrasive wire brushes?

A: Abrasive wire brushes have carved out a niche for themselves by providing unparalleled precision and versatility in a variety of industrial applications. Here is a detailed look at some of their specific applications:
1) Light Deburring
Deburring is the process of removing unwanted edges of material produced by machining operations such as drilling, milling, or turning. The flexibility of abrasive wire allows the brush to conform to the contours of the workpiece, effectively removing burrs without changing the geometry of the part. They provide a consistent, uniform surface finish, eliminating the inconsistencies that can occur with manual deburring.
2) Metal Finishing
Metal finishing involves refining the surface of a metal part to achieve a desired texture or appearance, and these brushes can provide a range of finishes, from matte to mirror, depending on the abrasive grit size and the operating parameters of the brush. They can also effectively blend surface inconsistencies and machining marks, providing a uniform surface finish.
3) Remove Rust and Oxide
Over time, metals oxidize, resulting in rust or other oxide layers that compromise functionality or aesthetics. The abrasive particles within the filaments effectively break down and remove rust and oxide layers. Unlike acid treatment or manual scraping, these brushes provide a non-invasive method that preserves the integrity of the underlying metal.
4) Remove Fluff from Wood
After mechanical processing or treatment, loose fibers or "fuzz" may appear on the surface of the wood. The abrasive filaments gently shear away the excess fuzz from the surface of the wood, leaving a smooth, ready-to-finish panel. This is especially useful before staining or sealing, as the defuzzed surface ensures an even application. It is of aesthetic importance, or the surface consistency will affect the function of the part.

Q: What materials are used for toothbrush bristles?

A: Currently, the main materials used for toothbrush bristles on the market include nylon (PA) bristles, PBT bristles, PP (polypropylene) bristles, PET composite bristles, etc. Different toothbrush bristles have different cleaning abilities for the oral cavity.
(1) Nylon bristles are generally divided into ordinary silk and DuPont silk. DuPont silk is a high-quality nylon thread with high strength and wear resistance. DuPont silk toothbrush bristles are relatively hard and have strong cleaning ability. Toothbrushes sold in supermarkets are generally hard-bristled toothbrushes.
(2) PBT bristles are relatively soft and have a good protective effect on gums and enamel. They have good resilience, are not easy to deform, and have a long service life.
(3) PP bristles have poor resilience and are easy to bend and fall back. The bristles are too hard. Too many bristles will damage the gums and increase the gap between teeth. They are mostly used in hotels or some cheaper toothbrushes.
(4) PET bristles are a composite material with a price between PP and nylon, similar to nylon, but with poor resilience.

Q: What is the diameter of toothbrush bristles?

A: Generally, the diameter of an adult toothbrush is between 0.18-0.28mm, the diameter of a children's toothbrush is between 0.12-0.15mm, and some electric toothbrushes can reach a diameter of 0.05mm.

Q: What are the components of a brush?

A: Understanding the composition of a brush can give us an understanding of the quality of the brush, its durability, and important aspects of brush care. The length of the brush handle varies depending on the use. Most watercolor brushes have short handles because watercolor artists usually only paint small works and sit directly in front of the work. Oil and acrylic brushes, on the other hand, can have short or long handles, so that people can step back while painting and still have an overview of the entire composition. The ferrule secures the bristles to the base of the handle, and the more curled the ferrule is, the sturdier its structure is. Inside the ferrule, the bristles are bonded together with a vinyl or epoxy adhesive. The bristles or bristles form a brush head or bundle of bristles, which has a belly in the middle and hairs at the tip. The hairs at the tip are the longest and must be particularly sturdy.

Q: What are the pros and cons of natural and synthetic hair?

A: Both synthetic and natural hair have their pros and cons. The advantage of natural hair brushes is their ability to hold water and pigment and the uniformity of pigment release. However, natural hair is more likely to break, which can leave hair on your painting, which is called shedding. Synthetic hair brushes can also shed hair if the hair is no longer firmly fixed in the pen holder, even if they are poorly made. Natural hair brushes also tend to be more expensive than synthetic imitations. Synthetic hair brushes have greater chemical resistance and are therefore better suited to acrylic dispersion paints, which have an alkaline pH due to the pH buffering effect of ammonia. They are also suitable for varnishes and lacquers that require strong solvents to clean the brushes. Synthetic hair is more slippery, which reduces its ability to hold paint and may not provide the same painting experience as "real" hair. To get the best of both worlds, try using a mix of natural and synthetic hair. Last but not least, there are ethical issues with using animal hair brushes. There are many similarities between the harm done to animals used to make paintbrushes and those used to make fur coats, and the vast majority of bristles come from China and Russia, two countries that do not have or enforce laws protecting animals. Therefore, synthetic bristle brushes are a cruelty-free alternative.

Q: Is the type of toothbrush bristles important?

A: Whether you use a manual or electric toothbrush, you should choose a toothbrush with rounded, soft bristles. This is because soft-bristled brushes are safer for your teeth and gums. When you use a hard or medium-bristled brush, you may inadvertently damage the enamel and root surfaces. The American Dental Association recommends only soft-bristled brushes. Soft-bristled brushes with rounded heads are clinically proven to effectively remove plaque and food particles without causing harm to your mouth or teeth.

Q: What is the average lifespan of a paintbrush?

A: Natural paintbrushes – Natural paintbrushes are made from natural animal hair and are used to apply oil-based paints. Natural paintbrushes can last 3-5 years if properly maintained.
Hybrid synthetic paintbrushes – These paintbrushes are easy to clean and maintain, especially when working with latex paints. These brushes are typically made from nylon and polyester, which provide excellent durability and excellent shape retention. These paintbrushes can last 2-3 years if properly maintained.
Polyester paintbrushes – These paintbrushes are best used with latex paints, retaining their hardness and shape with almost every paint and applying evenly and smoothly. With regular maintenance, these paintbrushes should last anywhere from 6 months to a year.
No matter which paintbrush you use, you can greatly extend the life of your paintbrush with proper maintenance! We recommend using soap and water on latex brushes and mineral oil on natural oil brushes.

Q: Why use synthetic brushes?

A: Save time
Synthetic brushes (also known as faux badger hair brushes) are extremely low-maintenance brushes if you have a busy schedule. They dry faster than badger brushes (in just a few hours, compared to up to a day for natural fibers) and are easier to create a richer lather. This is because synthetic fibers are solid rather than porous, so they don't absorb water like animal hair. This makes them less susceptible to mold and odor, and more hygienic. In addition, high-quality synthetic brushes don't shed and don't require a break-in period.

Q: Save Money

A: Synthetic brushes are very economical. Since they are made of artificial bristles, they are more durable and have a long lifespan. They also tend to be more affordable than animal hair brushes.

Q: Hypoallergenic

A: Men who are allergic to badger or animal hair can continue to shave with confidence, simply by switching to a hypoallergenic synthetic brush.

Q: Environmentally Friendly

A: As traditional shaving becomes more popular, the demand for animal hair will increase. However, for a variety of political and natural reasons, the supply may not increase, and may even decrease. Synthetic bristle brushes are an excellent alternative, and they are vegan,

Q: Can you use synthetic brushes to apply varnish?

A: For oil-based varnish, use a natural bristle brush, such as China bristle (hog bristle), or a synthetic (usually nylon/polyester) brush with a marked bristle tip (Photo A). For water-based varnish, only use synthetic bristles, as water can cause natural bristles to unravel.

Q: How to care for your brushes?

A: Keep the ferrule clean
Do not dip the brush into the paint up to the ferrule. Wet paint is difficult to remove from this area, and even more difficult if it dries.

Q: Remove excess paint

A: Remove all excess paint with a soft cloth or paper towel.

Q: Do not over-soak

A: Never soak a brush in water or mineral spirits for an extended period of time.

Q: Do not rest the brush on the brush head

A: Never rest the brush on the brush head. There are many accessories available for hanging brushes.

Q: Clean your brushes properly

A: Watercolors and acrylics should be cleaned with mild soap and water. Oils should be cleaned first with mineral spirits, then with soap and water. If you do not want to use mineral spirits, you can use baby oil or Murphy's oil soap.

Q: Storing Paintbrushes

A: Properly After cleaning, remove excess water, use your fingers to straighten the paintbrush back into place, and stand the paintbrush upright on the handle to dry.

Q: How do you keep your brushes from getting hard?

A: Wrap your paint brush or roller in foil to prevent it from drying out overnight, or in plastic wrap for shorter periods of time. Whether you're a DIY or professional painter, it's wise to get the most out of your roller or brush.

Q: How often should you dry brush?

A: There are many opinions on this subject. While it's safe to dry brush your body every day, it's definitely not recommended. The last thing you want to do is overdo it and undo all the good things you're doing to your skin. Once or twice a week should be enough to see and feel the results.

Q: Are polypropylene brushes better than nylon brushes?

A: Nylon has very good chemical resistance and is a great bristle choice for general scrubbing. Polypropylene is a synthetic bristle material that's more durable than natural fibers and more economical than nylon; it's highly resistant to chemicals, fungus, and bacteria.

Q: Are foam brushes good for polyurethane?

A: However, when it comes to applying a smooth, clear coat like polyurethane, a foam brush isn't my first choice. It doesn't have bristles, it has blades. The dull edge leaves two parallel ridges of finish, like a snowplow on the highway. Additionally, foam tips contain air, which may leave bubbles in your finish.

We're well-known as one of the leading brush filament manufacturers and suppliers in China. Please feel free to wholesale high quality brush filament at competitive price from our factory. Also, customized service is available.

2 5mm Trimmer Line, Clear Monofilament Thread, Nylon Thread For Sewing Thread