Microfiber is a general category of fibers that are woven and spun very thin, which is why they're called “micro” fibers. The filaments are made from several different kinds of synthetic or natural materials, but all are lightweight with downy soft finishes comparable to suede that belie their strength and sturdiness. Microfiber drapes well over couch and chair frames, retains its shape over extended periods of use and is resistant to moisture. If it's treated with a stain-resistant solution, spills wipe away easily without leaving a stain.
The most common type of microfiber used to cover couches is polyester. It has a soft, comfortable surface combined with toughness and colorfastness, so it holds up well to rough treatment by both children and adults. Microfiber can also be manufactured from nylon, rayon, acrylic, cotton or a combination of fibers.
Although microfiber couches feature tough, resilient upholstery, they still must be cleaned by a professional or through proper home cleaning techniques. Synthetic and natural fibers must be cleaned by different methods, so it’s important to know which type of microfiber couch you have. If the fiber content isn't available on the attached labels, you can test it with a lighter. Choose an inconspicuous area underneath the cushions and carefully hold the flame near the fabric but don't touch it. Synthetic microfibers will slowly back off as they melt from the flame's heat. If no melting occurs, lightly touch the flame to the fabric. Natural fibers will quickly turn into ash as the flame touches them and crumble into black soot in your hand.
You can safely clean synthetic microfiber couches with solutions that contain ingredients also used to clean synthetic carpets. Use a brush to work the cleaner into the fabric, then to rinse it. Before the microfiber dries, lightly brush the surface to maintain its softness and its even surface. Trails left by cleaning tools are difficult to remove after the microfiber has dried. Natural fibers have a tendency to bleed or develop blotches when cleaned and should only be cleaned by an experienced upholstery cleaning specialist.