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Antibacterial microfiber has excellent function
Apr 10, 2018

The production of ultra-fine fibers in China has been accelerated under the promotion of international and domestic markets, and the production capacity of ultra-fine fibers nationwide has exceeded 100,000 tons/year.

    Polyester and nylon composite microfibers are characterized by the differences in the chemical structure of PET and PA polymers, the weak interfacial bonding force, and the ability to separate from each other. During the production process, super-composite fibers are formed by melt spinning at a certain ratio. Antibacterial microfibers are made by adding antibacterial agents to chemical fibers in the form of blends or masterbatch to produce durable antimicrobial fibers. The fiber produced by this method can reach the linear density of microfibers. The average single fiber is about 0.2dtex. This line density is equivalent to 1/5~1/10 of the silk, giving the fabric good physical and chemical properties. In the textile cleaning supplies and clothing industry has been promoted.

     The so-called microfiber refers to microfibers with a diameter of 0.4mu, and its fiber degree is only 1/10 of a special wedge-shaped cross section of silk, so that it can effectively capture even a few micrometers of dust particles from the surface of the wipe, decontaminating and degreasing. The effect is very obvious. Microfiber fabrics are made of polyester and nylon. For polyester/nylon two-component composite microfibers, which are widely used in industrial textiles and made of a stripping method, fiber-opening is a crucial step, and it directly determines whether or not ultra-fine fibers can be truly formed. Whether multiple indicators of microfiber can be achieved. Alkaline solution is used to dissolve some of the components of the composite fiber to obtain ultra-fine fibers. The microfiber gives the product a larger specific surface area and more microscopic voids, which greatly enhances the ability of the product to adsorb particulates. This feature can be used to make face masks, filter membranes, and the like.

       The antibacterial microfibers are produced using both imported and domestic antibacterial agents, and the fiber opening rate after fabric dyeing and finishing is about 90%. The antibacterial properties of Staphylococcus aureus, Klebsiella pneumoniae, and Escherichia coli stained with antibacterial composite microfiber DTY filaments and warp-knitted terry fabrics were tested. The results showed that the antibacterial effects of fiber and dyed fabrics reached the Japanese fiber evaluation The blue and orange standards of the technical association SEK require high antibacterial effects.

        In order to further determine the antimicrobial durability of antimicrobial fibers, dry and hot heat treatment was performed on the antimicrobial composite microfibers, and the antimicrobial effect of the treated fibers was tested using Staphylococcus aureus. The results showed that antibacterial POY after the 170 °C, 220 °C stereotypes heat treatment and 95 °C boiling treatment, the antibacterial properties of the basic maintenance of the pre-treatment level, with excellent antibacterial effect. After heat setting and boiling experiments, the antimicrobial polyester-tiger composite microfiber has good antibacterial durability. The antibacterial polyester-tiger composite microfiber has good antibacterial and antibacterial durability, and will expand the application range of ultrafine fibers.

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