Besides general cleaning, having their carpets professionally cleaned is one of the services your customers will probably ask for most often. The Institute of Inspection, Cleaning and Restoration Certification (IICRC) states that the overall objective of carpet cleaning is to remove soil. This helps extend the life of the carpet and, of course, makes the whole building look cleaner. There are four primary cleaning methods: absorbent compound method; bonnet cleaning method; hot water extraction method; and dry foam cleaning method. The particular carpet cleaning method you select will be determined on the type of carpet, the carpet's use, and the condition of the carpet. Absorbent Compound Method: This method is sometimes called the "dry cleaning method" as almost no water is used. After vacuuming thoroughly, distribute a dry absorbent compound (which contains small amounts of water, detergent and solvent) uniformly over the carpet and work it into the carpet with a machine. The cleaner attracts and absorbs the soil. Then use the machine to agitate the compound through the carpet. When the carpet is dry, vacuum thoroughly to ensure you remove the compound from the carpet. You should use a vacuum with a high efficiency filtering system. This cleaning method has a fast drying time -- only 30 to 60 minutes. Bonnet Cleaning Method: After vacuuming thoroughly, apply a detergent solution to the carpet and bonnet. Then remove the solution by using a bonnet or absorbent pad, which is attached to a pad drive on a slow speed (175 rpm) rotary floor machine. As the machine agitates, the soil is loosened and absorbed by the bonnet. Pay attention to the condition of the bonnet as large soil accumulations will hinder the cleaning process. After bonneting, you must apply a neutralizer on the carpet using a pump-up sprayer. This method has a fast drying time 30 to 45 minutes. Hot Water Extraction Method: After thoroughly vacuuming the carpet, apply a detergent solution to the carpet using a pump-up sprayer and give dwell time. Remove the solution by rinsing with hot water, using a portable or a truck-mounted extraction unit. Mist on a neutralizer after extracting. Several extraction passes may be needed to completely rinse the suspended soil and detergent. The drying time for this method is 1 to 3 hours. To quicken the drying process, you can follow up with a dry bonnet and fans. Dry Foam Cleaning Method: This is also a minimum moisture type method. After vacuuming thoroughly, apply a dense foam to the carpet with a mechanical brush. The agitation of the chemical is done during the application process. After a suitable dwell time, use a carpet extractor to remove the excess foam and the suspended soils. Once the carpet is thoroughly dry, you may need to vacuum to extract any remaining detergent residue. The expected drying time is one to three hours; however, it can be longer for any heavily soiled areas. Remember, these are specific carpet cleaning methods and do not include the "start to finish" procedures that are necessary for successful cleaning. Routine vacuuming, pre-conditioning and other procedures are essential parts of the cleaning process. The particular carpet cleaning method that works for one building may not be suitable for another. Carpets should be cleaned before a soiled traffic lane appears. A carpet that is extremely soiled may result in irreversible damage. Do your homework as the carpets in different buildings may need different types of care. A well cared for carpet not only keeps your customers buildings looking good, but also keeps your cash flowing! Copyright 2006 The Janitorial Store |
