Temperature is necessary to speed the cleaning process. Every increase of 18 degrees F over 118 degrees F will double the speed of the process. Hotter is generally better but care should be exercised to insure that the fibers, dyes, or stain treatments are not adversely affected. |
Agitation is the process in which the fiber is cleaned or the vehicle for application of the cleaning solution. Agitation is necessary to break the bond between soils and the fiber. Agitation may include the brushes used in dry absorbent compounds, rotary shampoos, or dry foam cleaning methods. It may include the absorbent pad used in the bonnet method and the water pressure delivered in the hot water extraction method. Agitation allows the particles to be loosened and rinsed away.
Chemical action is the most difficult area of cleaning to comprehend. The purpose for the use of chemicals is to aid in loosening, bringing to the surface, or dissolving the soil contained in the carpet. Chemical action will be discussed in detail later in this section. Time refers to the recommended amount of time for the cleaning to take place. Some cleaning methods may be more effective the longer the time allowed, but other methods, such as dry absorbent compounds, must be removed within a specific time frame for maximum efficiency.
Each of these basic components are equally important for effective soil suspension. If one of the components is reduced or eliminated, the three remaining components must be increased. For example, if no chemicals are to be used in the hot water extraction process, agitation, time and temperature will need to be increased dramatically for effective soil removal. If heat will not be used in any of the methods, agitation, time, and chemicals will need to be increased for effective soil removal.
Extraction or soil removal is the next step in the cleaning process. Cleaning can be defined as the removal of foreign substances. According to this definition, extraction can be defined as the actual cleaning process. Extraction is the removal of soil from the fiber. Extraction may come in a variety of forms. In hot water extraction, rotary shampoo extraction and the dry foam method- extraction is a natural part of the cleaning method. The bonnet method uses and absorbent pad that aids in extracting soil. A vacuum cleaner is used to remove the dry powder in the dry absorbent compound method.
The most significant principle in cleaning is soil suspension. This involves separating soil from whatever needs to be cleaned so that it can be removed.
Four fundamentals which determine cleaning efficiency are:
temperature agitation chemical action time
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