1. Classified by raw material type

Using polymer as the main raw material, different raw materials endow products with different performance characteristics:

Polypropylene (PP) spunbond non-woven fabric

Features: Low cost, chemical corrosion resistance, good heat resistance (able to withstand high temperatures of around 130 ℃), but poor light resistance, and easy aging after long-term exposure.

Application: Medical protective clothing, surgical gowns, inner absorbent layer of masks, shopping bags, agricultural seedling cloth, etc.

Polyester (PET) spunbond non-woven fabric

Features: High strength, wear resistance, excellent light and chemical resistance, but high production cost, slightly lower flexibility than PP.

Applications: High end packaging materials (such as clothing lining), automotive interiors (soundproofing felt, seat fabrics), geotextiles, etc.

Polyethylene (PE) spunbond non-woven fabric

Features: Good flexibility, strong moisture resistance, but low heat resistance (melting point of about 120 ℃), easily affected by organic solvents.

Application: Leak proof film on the bottom layer of baby diapers, wet wipe packaging, disposable bed sheets, etc.

Polylactic acid (PLA) spunbond non-woven fabric

Characteristics: Biodegradable, environmentally friendly and non-toxic, with raw materials sourced from renewable plant resources (such as corn starch), but high cost and low strength.

Applications: environmentally friendly shopping bags, medical biodegradable surgical supplies, agricultural biodegradable plastic films, etc.

2. Classified by process technology

Differences in production processes can affect fiber arrangement and product performance:

Single component spunbond non-woven fabric

Process: Using a single raw material (such as PP or PET) for spinning, the fiber composition is uniform.

Features: Simple production process, low cost, suitable for large-scale production, but with single performance (such as single strength or breathability).

Application: Ordinary medical masks, disposable bed sheets, garbage bags, etc.

Multi component (composite) spunbond non-woven fabric

Process: Mix or spin two or more raw materials (such as PP and PE, PP and PET) in a certain proportion or layer by layer to form composite fibers.

Features: Combining the advantages of multiple raw materials, such as inner hydrophilic (PE)+outer hydrophobic (PP) to achieve waterproof and breathable properties, or enhancing adhesive strength through the lamination of fibers with different melting points.

Applications: High end medical protective clothing (meeting both barrier and comfort requirements), automotive filter materials, composite materials for hygiene products, etc.

Spunbond meltblown spunbond (SMS) composite non-woven fabric

Process: Combining spunbond (S) and meltblown (M) processes to form a sandwich structure of "spunbond layer meltblown layer spunbond layer".

Features: The fibers in the middle melt blown layer are fine (with a diameter of 1-5 microns), with high filtration efficiency. The spunbond layers on both sides provide strength and feel.

Application: Medical surgical masks, surgical drapes, industrial dust filters, etc.

Two component spunbond (parallel/skin core structure)

Process: Two spinning streams of different raw materials are combined at the nozzle to form parallel or skin core fibers.

Features: Fibers can produce curls through shrinkage differences, enhancing fluffiness and elasticity (such as the core layer being made of high melting point PET and the outer layer being made of low melting point PP in the skin core structure, making it easy to hot-rolled bond).

Application: Wiping cloth, insulation material (such as imitation down cotton), furniture decorative cloth, etc.

3. Classified by performance and purpose

According to the functional requirements of terminal application scenarios, it can be further subdivided into:

Medical spunbond non-woven fabric

Requirements: Sterile, breathable, anti bleeding, and resistant to disinfection (such as ethylene oxide or high-temperature steam sterilization).

Products: surgical gowns, surgical drapes, medical curtains, disposable mask bodies, etc.

Sanitary care spunbond non-woven fabric

Requirements: Soft and skin friendly, good moisture absorption, and non irritating to the skin.

Products: Baby diaper surface (hydrophilic PP), sanitary napkin bottom film (PE waterproof layer), wet wipe base fabric, etc.

Spunbond non-woven fabric for packaging

Requirements: High strength, puncture resistance, printable.

Products: Supermarket shopping bags, clothing dust covers, express packaging bags, fertilizer/seed packaging bags, etc.

Agricultural spunbond non-woven fabric

Requirements: UV resistance, good weather resistance, breathable and permeable.

Products: Crop insulation and cold proof cloth, seedling cover cloth, grass proof cloth, fruit bagging, etc.

Industrial spunbond nonwoven fabric

Requirements: Wear resistance, chemical corrosion resistance, and specific functionality (such as filtration and sound insulation).

Products: Automotive interior soundproofing felt, air filter material, geotextile (road reinforcement, water conservancy anti-seepage), industrial cloth, etc.

4. Other special classifications

Hydrophilic/hydrophobic spunbond non-woven fabric

Surface treatment (such as chemical grafting, plasma treatment) is commonly used in the medical and healthcare fields to make materials hydrophilic (for absorbing liquids) or hydrophobic (for waterproofing).

Flame retardant spunbond non-woven fabric

Add flame retardants or use flame retardant materials (such as aramid modification) to meet flame retardant requirements for fire protection, automotive interior, etc.

Anti static spunbond non-woven fabric

Add anti-static agents or conductive fibers for electronic component packaging, dust-proof clothing in semiconductor production workshops, etc.

Summarize

There are various classification methods for spunbond nonwoven fabrics, and in practical applications, they are often designed comprehensively based on raw materials, processes, and uses. For example, medical SMS non-woven fabric belongs to both multi-component processes and medical functional categories; The environmentally friendly PLA spunbond fabric reflects both the innovation of raw materials and the demand for sustainability. With the development of technology, high-performance and multifunctional composite spunbond materials (such as biodegradable, high elasticity, and intelligent sensing) will become an important direction for future development.