PP PET PA Coarse Denier Backbone Nonwoven Fabric: Material Properties and Wide Applications

PP PET PA Coarse Denier Backbone Nonwoven Fabric (polypropylene, polyester, polyamide coarse denier backbone nonwoven fabric) is a high-performance material that has been widely used in many industrial fields in recent years. It is made of different types of polymers (PP, PET, PA) and has excellent mechanical strength, high temperature resistance, chemical corrosion resistance and other characteristics. It is often used in filtration, automotive, construction, medical and other industries.

1. Material composition and characteristics
PP (polypropylene): PP is a thermoplastic resin with good chemical stability and heat resistance, which is widely used in non-woven fabrics. It has high tensile strength, good antibacterial and wear resistance, so it is often used in applications that require strong durability.

PET (polyester): PET has high temperature resistance, corrosion resistance, hard texture and good toughness. Combining it with other materials can enhance the strength and stability of non-woven fabrics, especially suitable for scenes that need to withstand greater pressure.

PA (Polyamide): Polyamide (such as nylon) has high tensile strength and impact resistance, and its performance is particularly outstanding in high humidity environments, so it is particularly important in some industrial applications that require water resistance and heat resistance.

2. Advantages of coarse denier substrate
Coarse denier substrate nonwoven fabric refers to nonwoven fabrics that use coarser fibers (usually more than 20 denier) as the main structural element. Compared with conventional fine denier nonwoven fabrics, coarse denier nonwoven fabrics have stronger support and higher tensile strength. Its advantages include:

High strength: Coarse denier fibers can effectively enhance the tensile properties of nonwoven fabrics and are suitable for application environments that require greater tension.

Durability: Coarse denier fibers increase the wear and tear resistance of nonwoven fabrics, making them suitable for harsh environments.

Breathability: Although coarse denier fibers increase the strength of the cloth, they maintain good breathability and are suitable for the manufacture of filter materials.

3. Application areas
Filter materials: PP PET PA coarse denier substrate nonwoven fabrics are widely used in air and liquid filtration systems. Due to its excellent mechanical properties and chemical stability, it can effectively intercept tiny particles and ensure filtration efficiency.

Automotive industry: In the automotive industry, nonwovens are often used for interior parts, in-car noise isolation, air filtration, etc. PP PET PA coarse denier base nonwoven fabrics can provide higher structural strength and durability.

Medical field: In the medical industry, PP PET PA coarse denier base nonwoven fabrics are used to produce surgical gowns, medical dressings and masks. Its good breathability and antibacterial properties make it an important component of medical materials.

Construction industry: In the construction field, nonwoven fabrics are used for building membranes, roof waterproof layers, etc., to play an isolation and protection role. Coarse denier base nonwoven fabrics are often used in building applications with heavy loads due to their high strength.

4. Production process
PP PET PA coarse denier base nonwoven fabrics are usually produced by spunbond or meltblown, which can achieve efficient fiber production and ensure fiber uniformity and stability. In the spunbond process, polymers are heated and stretched into long, thin fibers to form the base of nonwoven fabrics; in the meltblown process, polymers are melted and quickly stretched through a nozzle to produce extremely fine fibers for enhanced filtration.