Microfiber is defined as any fiber that is 1 denier or less (denier is a measurement of fineness equal to a unit of fiber weighing one gram for each 9000 meters).
To put that into perspective, microfiber is approximately 1/100th the diameter of a human hair and 1/20th the diameter of a strand of silk. There are approximately 200,000 fibers in one square inch of a typical microfiber towel. High quality microfiber used for cleaning is often 0.5 denier or smaller. This creates a tremendous amount of surface area to absorb liquid or hold dust and dirt.
In higher quality cleaning textiles the fiber is split during the manufacturing process to produce spaces in each fiber. If you were to look at a cross section of split microfiber it would look like an asterisk. It’s the split fiber working in conjunction with the space between them that do the work. They pick up and hold the dust and dirt and absorb liquid.
The attributes of split microfiber make it a true green cleaning product. Microfiber works extremely well as a cleaner without added chemicals. All of the edges on each fiber created during the splitting process act like squeegees scraping up the dust and dirt while the open spaced between the splits hold it. When water is added to the towel or duster it helps emulsify the dirt allowing it to be scrubbed off the surface being cleaned.
Microfiber products have been tested by an internationally recognized microbiology laboratory (Silliker – 45 laboratories worldwide and work with McDonalds, Kraft Foods & Kelloggs). 99% bacteria, including e-coli, listeria and aspergillus (mold) are removed with Microfiber.
The results demonstrate that microfiber cloths + water removes over 99% of bacteria and mold, locking it away inside the cloths’ fibers, where it stays until the cloths are rinsed.
Tests also show (after a brief rinse) only 0.01% of bacteria are re-introduced to a surface. Additionally, because the cloths do not leave any residue on the cleaned surface, there is nothing left behind to encourage the development of bacteria.
Further tests show that after a rinse with warm water, the microfiber products re-introduced just 0.01% of bacteria back onto a sterile surface.
The advantages to using microfiber to clean are almost endless. They can last hundreds of washings when cared for properly, can absorb 7 times their weight in liquid and are hypoallergenic.