What is polypropylene staple fiber used for?

Author: Ingrid

May. 06, 2024

PP Staple Fiber - Filtrafine Corporation

Needle Punching

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Filtrafine develops a variety of PP staple fiber products in different colors and with various properties to meet the diverse applications of the market and cater to customer needs. Some key attributes of PP staple fiber materials include chemical resistance, wear resistance, easy cleaning, and light weight. This material is widely used in filter media, vehicle interior design, tufted carpets, and geotextiles.

Model

Specification

Application

T301

15D-76 mm

Fibers for Needle Punching

It can be applied to floor coverings, tufted carpets, and furniture through Needle Punching Processing.

T301

18D-76 mm

Fibers for Needle Punching

It can be applied to floor and wall coverings, and tufted carpets through Needle Punching Processing.

T302

15D-76 mm

Fibers with High UV Resistance

With UV resistant properties, it can be used for vehicle interior design and outdoor floor coverings through Needle Punching Processing.

T302

18D-76 mm

Fibers with High UV Resistance

With UV resistant properties, it can be used for vehicle interior design and outdoor floor coverings through Needle Punching Processing.

T401

3D

38/50/76 mm

Low Melting and Hydrophilic Fibers

It can be applied to diapers and hygiene product coverings, medical textiles, wet wipes, filter media, etc., through Thermal Bonding Processing.

T401

6D

50/76/90 mm

Fibers for Needle Punching

It can be applied to carpets, door panels, furniture, and bedding through Needle Punching processing.

T402

6D

100 mm

Fibers with High Tenacity and UV Stability

With high tenacity (>5g/d) and UV resistance, it can be applied to geotextiles through Needle Punching Processing.

Thermal Bonding

Filtrafine develops various PP staple fiber products to meet the diverse applications according to market demands, including hydrophilic, hydrophobic, and durable-hydrophilic fibers. These fibers are widely used in hygiene materials for diapers, paper towels, masks, tea bags, hygiene products, and beyond. Among the various models of fibers, the T182 series adopts special manufacturing technology and has a lower melting point at 150°C. It can help reduce processing temperatures and save energy costs.

Model

Specification

Application

T102

2D-38mm

Hydrophilic Fibers

It can be applied to diapers and hygiene product coverings, medical textiles, wet wipes, filter media, etc., through Thermal Bonding Processing.

T102P

2D-38mm

Durable Hydrophilic Fibers

It provides long-acting hydrophilic properties, moisturizing ability, permeability, and soft texture. It can be applied to diapers and hygiene product coverings, medical textiles, wet wipes, filter media, etc., through Thermal Bonding Processing.

T182

2D-38mm

Low Melting and Hydrophilic Fibers

With better MD/TD tensile strength, it can be applied to diapers and hygiene product coverings, medical textiles, and surgical wipes. With a lower melt temperature at 150°C, it helps to reduce operating temperature and save energy costs in Thermal Bonding Processing.

T182F

2D-38mm

Low Melting and Hydrophobic Fibers

The hydrophobic properties provide waterproof ability, protecting from water penetration and particle adhesion. This type of property also provides excellent water impermeability for dryness. Hydrophobic fibers are suitable for products ranging from diapers, hygiene product coverings, medical materials, wet wipes, and filters.

Spunlace

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Filtrafine develops a variety of PP staple fiber products to meet the diverse applications of Spunlace Processing. Based on its ultra-fine denier and durable hydrophilic properties, it gives Non-Woven Fabric soft, flexible, permeable, and moisturizing features. With its tenacity and chemical resistance, it is widely used in facial masks, wet wipes, and tissue paper products.

Model

Specification

Application

T102M

1.7D-38 mm

Durable Hydrophilic Fibers

It provides soft, flexible, permeable, and moisturizing features and is widely used in woven applications for facial masks, medical and surgical facial masks, wet wipes, and tissue paper products through Spunlace processing.

What is polypropylene staple fiber?

Definition of Polypropylene Staple Fiber

Polypropylene staple fiber is a single fiber that can improve crack resistance, impermeability, anti-wearing ability, anti-freezing ability, anti-explosion ability, and workability of concrete. Short polypropylene fibers are evenly distributed in mortar and concrete, which keeps the structure's integrity well and prevents it from dispersing into many fragments when damaged by impact. This prevents the corrosion of steel bars in the structure, extending the service life of the project and reducing maintenance costs.

Polypropylene staple fiber is used in anti-cracking putty powder, thermal insulation mortar, concrete, construction engineering levels, walls, floors, pools, basements, and access bridge engineering. It has anti-cracking, wear resistance, toughness, and impact resistance, explosion-proof benefits, as well as resistance to tearing, and the improvement of bonding in old and new interfaces.

Polypropylene staple fiber has superior moisture permeability and quick-drying properties, good combability, and spinning performance, and can produce soft and tough fabrics. The fabric is light in weight, warm, delicate in hand, and comfortable. It is also acid and alkali resistant and has quick dissolveability, good filling, and insulation.

Polypropylene fiber is a synthetic fiber spun from isotactic polypropylene obtained by polymerizing propylene as a raw material, with the trade name polypropylene fiber in my country.

Polypropylene fibers can be divided into long fibers, short fibers, spunbonded non-woven fabrics, melt-blown non-woven fabrics, etc. Polypropylene long fibers can be divided into ordinary long fibers and fine denier long fibers (monofilament size ≤2.2 dtex, which can be used to produce clothing, decoration, and some industrial filament products). Polypropylene fine denier long fibers have good luster, a soft feel, good drape, low density, and are suitable for the knitting industry. When interwoven with cotton, viscose silk, true silk, spandex, etc., into cotton cover acrylic, silk cover acrylic, and other products, it is an ideal material for high-end sportswear, T-shirts, etc.

Most production processes of polypropylene staple fiber adopt a porous, low-speed, continuous process, specifically a short spinning process. Polypropylene staple fiber blended with cotton can be made into polypropylene cotton muslin and bed sheets. Polypropylene blended with viscose can be used for blankets, while pure spinning and blended yarns can be used for polypropylene blankets, carpets, and cotton wool filter nozzles. Different fiber thicknesses are used for different products; for example, the thickness for sanitary products is 1.5-2.5, ground fabrics is 5-10, and their lengths range from 1.5 to 200.0 mm, depending on the specific application.

Polypropylene staple fibers can be divided into cotton type, wool type, carpet type, and medium and long types according to natural fiber specifications. They can be spun purely or blended with natural or other fibers in varying proportions to make sliver, fabric, and felt.

Polypropylene staple fibers are mainly used in needle-punched carpets, automotive interiors, non-woven fabrics, ropes, decorative materials, medical and sanitary products, etc. Short fiber, also called cut fiber, are chemical long fiber bundles cut or broken into fibers matching various natural fiber lengths. Natural fibers like whiskers and asbestos can also be used. Short fiber lengths are generally 35 to 150mm, classified into cotton type, wool type, carpet type, and medium and long types. They can be spun purely or blended with natural or other fibers to make sliver, fabric, and felt.

Characteristics of Polypropylene Staple Fibers

Polypropylene staple fibers are characterized by low density, light weight, and the ability to float on water. They have high strength and strong tensile strength and possess certain acid and alkali resistance. These fibers are corrosion-resistant and do not suffer in sea water. Polypropylene staple fibers have low hygroscopicity and almost no moisture absorption, making them environment-friendly and pollution-free products.

Polypropylene products provide good bulk and coverage, are abrasion-resistant, color-fast, and quick drying. They have low static, resist deterioration from chemicals, mildew, perspiration, rot, and weather, and are stain and soil resistant, and sunlight resistant. Polypropylene garments wick body moisture from the skin, are very comfortable, and lightweight.

How is Virgin Polypropylene Staple Fiber (PPSF) made?

Polypropylene fiber is made from isotactic polypropylene chips through the melt spinning process to form filaments. These filaments or fibers are then solidified by air or water quenching. Following this, a spin finish is applied and collected in cans. The fibers are stretched several times in a chemical hot bath, relaxed, and crimped to be suited for various spinning systems.

Polypropylene staple fiber is used to manufacture air filters, water filters, and other industrial fabrics, and is also used for woven carpets, non-woven carpets, upholstery, and carpet backing.

Polypropylene staple fibers offer superior features due to their lowest specific gravity, resulting in better relative coverage, high dimensional stability, excellent recovery properties (elasticity and resiliency), low thermal conductivity, the lowest static charge, and chemical inertness. The denier range of PP Fiber is 1.5D to 70D.

Geotextile made of Polypropylene Staple Fiber (PPSF)

Geotextiles are permeable fabrics that, when used with soil, can separate, filter, reinforce, protect, or drain. Typically made from polypropylene or polyester, geotextile fabrics come in three forms: woven, needle punched, or heat bonded. Higher Breaking Tenacity and higher Breaking Elongation are prerequisites for good quality geotextiles. UV stabilization is done using a high-quality HALS-based UV Stabilizer in desired proportions to meet domestic and global standards.

Specifications of Virgin Polypropylene Staple Fiber

Denier: 1.5D to 70D

Cut length: 25, 32, 51, 64, 76, 102, and 124 mm (as per customer requirement)

Tensile strength: >3.5gm/Denier

Elongation: >70%

Crimps: 3 to 5 per cm

Shades: All shades available

UV Stabilization: Yes, the level of UV Stabilization can be customized to customer requirements.

Applications of Virgin Polypropylene Staple Fiber (PPSF)

Virgin Polypropylene Staple Fiber is used in spinning yarns, filler fabrics, geotextiles, automotive floor carpets, thermal bonded fabrics, insulations, carpet and filter fabrics, felts, non-woven carpets, building construction, and RCC.

Other applications include reinforcing concrete using short cut lengths for RCC building construction and making cement sheets, tiles, and pipes, enhancing the strength of the concrete or RCC. Fiber Reinforced Concrete (FRC) is Portland Cement concrete reinforced with thousands of randomly distributed small fibers, improving properties in all directions. Polypropylene fibers in 0.5% to 1% are normally used. Common lengths for various applications include 6, 12, and 20 mm with specific deniers for each use. Polypropylene is also used in apparel (activewear, sportswear, socks, thermal underwear, lining fabrics).

Spunbond non-woven fabrics, also known as filament non-woven fabrics, are made by extrusion spinning, stretching, meshing, and bonding after melting polypropylene raw materials. They have a short process, low cost, high productivity, excellent performance, and a wide range of uses. Such fabrics are widely used in various production and life fields, including disposable medical and sanitary products, disposable anti-fouling clothing, agricultural cloth, furniture cloth, shoe industry linings, etc.

What is the Difference Between Polyester and Polypropylene?

First, analyze the elongation at break. It's often measured using the suspension method, calculated by the strong force, which means the weight of a single fiber suspension equals its breaking strength. Research shows polyester's elongation at break is 30-40%, polypropylene is greater than polyester, nylon is 18-45%, and vinylon is 12%-25%. From these data, it's hard to rank them definitively without specific context.

Second, analyze recovery. Nylon has above 90% recovery rate at 10% elongation, which is characteristic for nylon. For others, polypropylene is better than polyester, and vinylon is relatively poor.

Finally, analyze wear resistance, a key performance metric for centrifuge screens. Polyester and nylon have good wear resistance, followed by polypropylene, and then vinylon.

If you are looking for more details, kindly visit pp staple fiber.

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