Application of DuPont three-proof finishing agent in medical textiles

This article introduces the application of DuPont three-proof finishing agent on medical fabrics. Diseases endanger human health and greatly increase the risk of infection for a large number of medical staff. Therefore, improving the performance of medical protective clothing has attracted much attention. Medical staff will come into contact with blood or body fluids containing pathogens in their daily work. Reused surgical gowns not only have the problem of cross-infection during the cleaning process, but their ability to block and filter germs will gradually decrease. Therefore, it is urgent to develop disposable medical protective clothing with high strength, high impermeability and breathability.

Nonwoven fabrics are widely used in the medical and health field, and countries are spending huge sums of money to develop medical nonwoven products with high barrier properties. There is little research on medical nonwoven products in China. Therefore, it is of great significance to develop independent medical nonwoven products. We used fluorine-containing three-proof finishing agent to perform water-repellent, oil-repellent and stain-repellent finishing on SMMS and wood pulp nonwovens through a rolling and baking process, and studied the properties of SMMS and wood pulp nonwovens after finishing. .

DuPont three-proof finishing agent is a layer of low surface energy material coated on the surface of non-woven fabrics, which not only blocks the passage of liquid water and oil, but also maintains certain air permeability. When the dosage of the three-proof finishing agent reaches a certain value, a thin film with a surface energy lower than that of water and oil has been formed on the surface of the nonwoven fabric, effectively blocking the wetting of the surface of the nonwoven fabric by water and oil.

After DuPont three-proof finishing, the alcohol resistance of SMMS non-woven fabrics is improved from level 6 to level 10, the blood penetration resistance is improved from slightly permeable to impermeable, and the hydrostatic pressure resistance is improved from 12 cm water column resistance to 19 cm water column resistance; After three-proof finishing, the alcohol resistance of wood pulp nonwoven fabrics is improved from level 0 to level 10, the resistance to blood penetration is improved from permeability to impermeability, and the hydrostatic pressure resistance is improved from resistance to 0 cm water column to resistance to 18 cm water column.

After being treated with DuPont three-proof finishing agent, SMMS and wood pulp non-woven fabrics have the necessary properties of alcohol resistance, blood penetration resistance, and hydrostatic pressure resistance for medical protective clothing. The breathability does not change much and does not affect the wearing comfort. Its barrier performance is significantly improved and can meet the technical requirements of medical disposable protective clothing.

This article is provided by Chemical Industry. DuPont three-proof finishing agent ordering phone number: 400-0909-770

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