Melt blown non-woven fabric, as the core filter layer of masks, is mainly made of polypropylene and has a fiber diameter of 1-5 microns. This unique capillary structure makes meltblown fabrics excellent in terms of filtration, shielding, insulation, and oil absorption. In addition, it can also be widely used in various fields such as air and liquid filtration materials, isolation materials, absorption materials, etc.
Main types and characteristics
Leather core type
Structure: Composed of two polymer composites (such as polypropylene as the core layer and nylon or polyethylene as the outer skin), forming a concentric or eccentric structure.
Features: Improve fiber moisture absorption, conductivity, or reduce costs, such as using carbon black conductive fibers as the core layer to achieve anti-static function.
Parallel style
Structure: Composed of two different polymers (such as PET/PP) in parallel composite .
Features: Utilizing the difference in thermal shrinkage rate of materials to form spiral curled fibers, endowing non-woven fabrics with high elasticity and flexibility.
Terminal type
Structure: Fiber end composite special polymer (such as trilobal or cross shaped cross-section) .
Features: Enhance moisture and electrical conductivity, suitable for anti-static or high moisture absorption scenarios.
Micro Dan Type
Structure: A ultrafine fiber network 6 is formed by peeling off incompatible binary components (such as orange petal or sea island).
Features: The fiber diameter can reach the nanometer level, significantly improving filtration accuracy and material uniformity.
Mixed type
Structure: Mix different materials, colors, or cross-sectional fibers (such as co spun fibers combined with two-component fibers).
Features: It combines multiple performance advantages (such as anti-static and high barrier properties) and is suitable for automotive sound-absorbing materials or building soundproofing fields.
General characteristics
Materials and Structure: Polypropylene (PP) is the main raw material, with fiber diameters ranging from 0.5 to 5 microns, randomly distributed to form a high porosity (≥ 75%) fiber network structure, with a specific surface area 25% larger.
Functional features:
Filtration: It can efficiently block micron sized particles such as dust and microorganisms, and further reduce resistance and increase dust holding capacity by 56 after electrostatic treatment.
Softness and breathability: The fiber mesh is evenly fluffy, with a soft touch and excellent breathability.
Limitations: The fiber web has low strength and needs to be combined with other materials (such as spunbond nonwoven fabric) for use.
Which type of melt blown non-woven fabric is the best?
The optimal type of melt blown non-woven fabric needs to be comprehensively evaluated based on specific application scenarios, and different types have significant differences in performance characteristics:
Select according to functional requirements
High precision filtering scenarios (such as medical protection)
Micro denier: The fiber diameter reaches the nanometer level, with high and uniform porosity, which can efficiently intercept micrometer sized particles (such as viruses and dust). After electrostatic treatment, the filtration efficiency is further improved, making it the core material for N95 masks and medical surgical masks.
Advantages: The highest filtration accuracy (≥ 95% non oily particle filtration efficiency), suitable for scenarios with strict protection level requirements.
Elasticity and flexibility requirements (such as civil insulation materials)
Parallel structure: The spiral curled structure is formed by the thermal shrinkage difference of two-component fibers such as PET/PP, which endows the material with high elasticity and fluffy texture, suitable for products that need to conform to the curves of the human body.
Advantages: Balancing breathability and comfort, suitable for long-term wear or close fitting use scenarios.
Multi functional composite applications (such as industrial sound insulation, battery separators)
Hybrid type: By co spinning different materials (such as polypropylene and conductive fibers) or combining two-component fibers (such as skin core type+fine denier type), comprehensive properties such as anti-static and high barrier can be achieved.
Advantages: High degree of customization, meeting multi-dimensional requirements under complex working conditions.
Based on cost and process investigation
Economic priority (such as ordinary civil protection)
Leather core type: Using inexpensive materials as the core layer (such as polypropylene), the outer layer is composed of functional polymers (such as nylon), reducing raw material costs while improving moisture absorption or conductivity, with a high cost performance ratio of 16.
High tech value-added scenarios (such as high-end filter materials)
Island type/orange petal type microfiber: using a peeling two-component process, it can produce ultrafine fiber webs on a large scale, with high technical barriers but significant increase in product added value (adding thousands to tens of thousands of yuan per ton).
Comprehensive recommendation
In the field of medical protection, the preferred choice is fine denier, whose nanoscale fiber structure and polar processing technology can achieve efficient and low resistance filtration, making it the mainstream choice for masks and protective clothing.
In the industrial and civilian fields: if performance and cost need to be balanced, hybrid or skin core types are more suitable; For scenarios with high elasticity requirements, parallel equation 16 is recommended.
Note: In actual selection, specific process requirements (such as melt strength and heat sealing) and material characteristics (such as differences in polypropylene grades) should be considered, and product standards (such as GB 19083-2010 Medical Protective Masks) should be referenced for verification
Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.
Post time: Mar-24-2025