Microfiber is synthetic fibers thinner than one denier or dtex/thread, with a diameter of less than 10 microns. A single strand of silk occupies about 1 denier, or about one-fifth of the diameter of a human hair.
The most common type of microfiber is made of polyester. Polyamide (for example, nylon, Kevlar, Nomex, trogamide); and combinations of polyester, polyamide, and polypropylene. Microfibers are used to make cushions and woven fabrics for clothing, upholstery, industrial filters and cleaning products. The shape, size, and combination of synthetic fibers are selected to have specific characteristics, including softness, toughness, absorption, hydrophobicity, static electricity, and filtering ability.
Microfiber is used to make many accessories traditionally made of leather: wallets, handbags, backpacks, book covers, shoes, mobile phone cases and coin purses. Microfiber fabric is lightweight, durable and has a certain degree of hydrophobicity, so it is a good substitute.
Another advantage of microfiber fabric (compared to leather) is that it can be coated with various finishes and can be treated with antibacterial chemicals. The fabric can also be printed in various designs, embroidered with colored threads and hot embossed.
Application
1. Cloth and mop
Microfibers can be used in many professional cleaning applications, such as mops and cleaning cloths. Although the cost of microfiber mops is higher than that of non-microfiber mops, they may be more economical because they last longer and require less effort to use.
Microfiber textiles, designed for cleaning on a microscopic scale. According to the test using microfiber materials to clean the surface, the number of bacteria was reduced by 99%, while the conventional cleaning materials were only reduced by 33%. Microfiber cleaning tools also absorb fat and grease, and their electrostatic properties make them highly dust-absorbing.

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Microfiber accumulates dust, debris and particles, so it is not suitable for certain cleaning applications. If the microfiber cloth picks up grit or other abrasive particles during use, the microfiber cloth can easily damage sensitive surfaces (for example, all high-tech coated surfaces, such as CRT, LCD, and plasma screens). One way to minimize the risk of damaging the surface is to use flat, weak microfiber cloths, as they tend not to leave grit.

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Wipes made of microfiber can only be washed with conventional washing powder, not oily, self-softening soap-based washing powder. Do not use fabric softeners. The oils and cationic surfactants in softeners and self-softening detergents can clog the fibers and reduce their absorbency until the oil is washed away. In addition, because the microfiber cloth attracts a large amount of soil and tightly retains water, it provides an ideal nutrient environment for various microorganisms.

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Clean textiles
In cleaning products, ultrafine fibers can be 100% polyester fibers, or a mixture of polyester fibers and polyamide (nylon). It can be a woven product or a non-woven product. The latter is most commonly used for limited-use cloth or disposable cloth. In the highest quality fabrics used for cleaning applications, the fibers split into multiple strands of fibers during the manufacturing process. At high magnification, the cross-section of the split microfiber fabric looks like an asterisk.
The size of the separated fibers and individual filaments makes these cloths more effective in cleaning than other fabrics. The structure traps and retains dust and also absorbs liquid. Unlike cotton, superfine fibers do not leave lint, except for some micro suede blended fabrics, where the surface is mechanically processed to produce a soft plush feel.
