Carpet Cleaning Bonnets
from Bane-Clene® Corp.
What is bonnet carpet cleaning?
Bonnet cleaning, also called spin pad or absorbent pad or carbonated shampoo cleaning, is simply an adaptation of hard floor spray buffing to carpets.
A rotating absorbent pad (usually cotton or rayon) is attached to a low speed (175 RPM) Rotary Floor Machines - with a heavy-duty motor because of the high friction involved. A special drive block is required to keep the bonnet or pad from slipping off. Dirt is theoretically collected into the pad. The pad is supposed to be changed or turned when the pad surface stops absorbing soil - this is usually up to 600 square feet per pad side. The pad is then washed out and reused as needed. Sometimes, carbonated water is used to (in theory) give better soil suspension and bring down the pH.
Even though it is not true “dry cleaning”, many people using the bonnet carpet cleaning system call it dry cleaning, which is highly deceptive. There are two methods of application of the cleaning solution:
(1) A round absorbent pad (bonnet) is prepared before actual cleaning by either immersing it with water and wringing it out so it isn’t dripping wet and heavily soiled areas are directly sprayed with the bonnet cleaning solution at no more than 200 square feet per gallon.
Nearly all carpet and fiber manufacturers recommend against using this method on Cut Pile carpet. Additionally, many of the detergents and shampoos for bonnet cleaning contain high levels of optical brightener.
The advantages of this carpet cleaning method are: low equipment cost, rapid drying (usually dry in 30 minutes), very rapid cleaning (because you’re only cleaning the surface) and the ability to charge less because it’s quicker.
The disadvantages of this carpet cleaning method are: pile distortion and fiber damage on cut-pile carpet, swirl marks left behind, soil ground into the carpet, detergent and soil build-up. Additionally, only two dimensions (width and length) of the carpet are really cleaned - that is, the surface. Under the cleaned surface may exist a living, breathing sewer. Unfortunately, a clean “appearance” is all some customers care about. Also, a large inventory of clean bonnets is required as well as the washers and dryers to clean the bonnets.
Here are two mill and fiber producer statements on bonnet cleaning:
“Do not use “spin bonnet” or other rotary systems on cut-pile carpet.”
“Bonnet or Absorbent Pad …… The use of this method is not recommended on cut-pile carpet.”
Bonnet cleaning of carpet does have a place in the scheme of things - sometimes it helps after extraction cleaning an area of Loop Pile Carpet with a large number of spills. For example, if you have been extraction cleaning a level-loop pile carpet in a dining room in a nursing home where there is a large number of large spills and many of the stains always reappear, using dry bonnets after cleaning will reduce drying time and reduce possibility of wicking and, therefore, reduce the likelihood of having to go back.
If you see a large stain indicating a massive spill, even this won’t totally solve the problem.
Of course, if there are just a few areas or if this is cut-pile carpet, you can simply spray down ARA anti-resoiling agent after extraction cleaning on the spill areas to reduce wicking.
For those who do bonnet clean level loop commercial carpet, we have available Pro’s Choice Brush & Bonnet.
Clean and Brighten Your Cotton Bonnets: When you wash bonnets, use 3 oz. (1 heaping scoop) of Extreme Clean with 6 oz. (2 heaping scoops) of OSR in your wash.
NOTE Do not run a DRY bonnet on olefin (polypropylene) carpet or rug - olefin has a very low softening point!
Related Carpet Bonnet Cleaning Articles:
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