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Whether perforated non-woven fabric has antibacterial or anti-mildew function depends on its material, production process and whether it has been specially treated. Ordinary non-woven fabrics do not have natural antibacterial or anti-mildew properties, but by adding functional additives, coating treatment or using specific materials, they can be given antibacterial and anti-mildew properties. The following is a detailed analysis:
Antibacterial and anti-mildew capabilities of ordinary non-woven fabrics
Limitations of ordinary non-woven fabrics
Ordinary non-woven fabrics (such as polypropylene PP or polyester PET materials) do not have antibacterial or anti-mildew functions. In humid or high humidity environments, non-woven fabrics may become a breeding ground for bacteria or mold, especially in the case of long-term use or improper storage.
The impact of perforated design
Due to its high air permeability and moisture permeability, perforated non-woven fabrics may accelerate water evaporation in some cases, thereby reducing the possibility of mold growth. However, perforated design alone cannot completely prevent the growth of bacteria or mold.
Methods for achieving antibacterial and antifungal functions
Addition of antimicrobial agents
Silver ion antimicrobial agents
Silver ions are a common antimicrobial ingredient that can be added to non-woven fibers or coated on their surfaces to give non-woven fabrics antimicrobial properties. Silver ions can destroy bacterial cell membranes and inhibit their reproduction.
Organic antimicrobial agents
Some organic compounds (such as quaternary ammonium salts) can also be added to non-woven fabrics as antimicrobial agents. These antimicrobial agents are effective against a variety of bacteria and fungi, but may need to be replenished regularly to maintain the effect.
Nanotechnology
Nanoscale antimicrobial materials (such as nano zinc oxide or nano titanium dioxide) can kill bacteria and mold through photocatalysis, while improving the durability and stability of non-woven fabrics.
Anti-fungal coatings
Coating antifungal agents (such as benzimidazole or isothiazolinone compounds) on the surface of non-woven fabrics can effectively inhibit the growth of mold. This coating is particularly suitable for agricultural coverings or building insulation materials.
Functional fibers
Using antibacterial fibers (such as functional fibers containing copper or silver ions) to directly make non-woven fabrics can achieve antibacterial effects without adding additional chemicals. This method is more environmentally friendly and durable.
Finishing process
After the non-woven fabric is produced, the antibacterial or anti-mildew components are fixed to the surface of the non-woven fabric through processes such as impregnation, spraying or hot pressing. This method is low-cost, but the effect may weaken over time.
Application scenarios of antibacterial and anti-mildew functions
Medical field
In medical supplies such as surgical gowns, masks, and wound dressings, antibacterial perforated non-woven fabrics can effectively reduce the spread of bacteria and protect the safety of medical staff and patients.
The anti-mildew function is suitable for medical supplies that need to be stored for a long time to ensure that they are not contaminated by mold.
Agricultural field
Agricultural covering cloth needs to be used for a long time in a humid environment, and the anti-mildew function is particularly important. Antibacterial perforated non-woven fabrics can also reduce the spread of plant diseases.
Home and hygiene products
In mattresses, sofa covers or curtains, antibacterial perforated nonwovens can reduce the growth of dust mites and bacteria and improve the hygiene level of the living environment.
In disposable products such as sanitary napkins and diapers, antibacterial functions can improve the comfort and safety of products.
Construction and industry
In building insulation materials or filter materials, antibacterial and anti-mildew functions can extend the service life of products and maintain air quality and environmental hygiene.
Evaluation of antibacterial and anti-mildew properties
Antibacterial performance test
Antibacterial properties are usually evaluated by laboratory tests, such as:
AATCC 100: Tests the inhibition rate of nonwoven fabrics against specific bacteria (such as Staphylococcus aureus or Escherichia coli).
ISO 20743: Determination of the antibacterial activity of textiles.
Antibacterial performance test
Antibacterial properties can be evaluated by the following standards:
ASTM G21: Tests the resistance of materials to mold growth in high humidity environments.
GB/T 24128: Chinese national standard for evaluating the antibacterial properties of plastics and textiles.
Perforated nonwoven fabrics can achieve antibacterial and mildew-proof functions by adding antibacterial agents, mildew-proof coatings or using functional fibers. These functions make them have broad application prospects in the fields of medical care, agriculture, home furnishing and construction. When purchasing or customizing antibacterial and mildew-proof perforated nonwoven fabrics, it is necessary to comprehensively consider their performance, durability, environmental protection and cost, and ensure that they meet relevant industry standards and regulatory requirements.