What is the best way to clean carpet?

Carpet Shampoo Method

The theory in the shampoo method is to generate a lot of foam in the carpet, allow this foam to dry, have the resulting residue attract the soil and vacuum up the residue and soil the next day. Carpet shampoo products must have the following characteristics which dictate their ingredients:

Very high foam levels to reduce wetting.

Very stable foam.

High lubricity to reduce damage to the carpet fibers from the brushes.

Dry to a non-sticky residue.

Therefore, a carpet shampoo must contain a very foamy chemical. The most common ingredient is sodium lauryl sulfate or one of its relatives. Sometime when you’re taking a shower or bath, look at the ingredient statement on your hair shampoo bottle. It will say “Contains sodium lauryl sulfate” or some similar wording. Sodium Lauryl Sulfate and its relatives exhibit a very high and very stable foam and are only fair detergents. The problem is that they dry to a soft, sticky residue which will cause resoiling.

Two primary types of machines are used for this process:

Cylindrical Foam

Rotary Shampoo

The Cylindrical Foam Shampoo machine uses an air compressor to create dry foam before the foam is applied to the carpet and the carpet is then agitated with a revolving cylindrical brush which combs the foam through carpet pile. This method will leave dirt trapped in the carpet pile. Carpet must be thoroughly vacuumed before and after cleaning.The Rotary Shampoo method uses an ordinary rotary floor machine (the same kind used for stripping wax), sprays shampoo onto the carpet from a dispensing tank and a rotary brush whips the detergent to a foam. Most carpet mills and carpet fiber producers discourage the use of rotary brushes on carpet because of the potential damage that can occur. Oversetting is common with this method which can cause jute straining, shrinkage and odor. In this method, dry absorbent compound (containing small amounts of water, detergent, and solvent,) is sprinkled over carpet or worked into the carpet with a machine. This purpose of this cleaner is to attract and absorb soil. Mechanical agitation from a brush works the cleaner through the carpet.

These products usually contain an carpet cleaning new westminster,  water, detergent and solvent. The theory is that the liquids dissolve the soil and this soil/detergent/solvent mixture is absorbed into the carrier and is then vacuumed up. They are often used with a detergent prepay in heavily soiled areas. The absorbent cleaner most commonly is organic, but may also be polymers. The compound is supposed to absorb the dislodged soil and is then vacuumed away. Carpet must be thoroughly vacuumed before and after cleaning.

 

Very thorough vacuuming should be used to ensure that most of the carrier comes out of the carpet. With the extremely fine powder types, indoor air quality can be reduced. If a white powder starts appearing on shoes and cuffs of pants, too much was used and it was not thoroughly vacuumed up. A common problem is for this white powder to reappear after wet extraction cleaning. Host, Capture, Love My Carpet®, Arm and Hammer® and Carpet Fresh® would be included in this category. Bonnet Method / “Carbonated Cleaning” This method is sometimes called “dry cleaning”, which is a misnomer, since water is used. Bonnet Shampooing is simply an adaptation of hard floor spray buffing to carpets. This method for carpet maintenance consists of the use of a rotary or oscillating brush adapted with a stiff brush or drive block designed to drive wet, damp or dry pads. The carpet can be sprayed with the cleaning solution and/or the pads can be soaked in the cleaning solution and squeezed lightly before placing the pad under the driving brush.

 

The maintenance brochure published by the world’s largest carpet manufacturer, Shaw Industries, suggests not using this method, especially on cut pile, due to pile distortion and fiber damage. This method has very limited capability for soil removal and leaves much of the detergent in the pile since it employs no real extraction. As a result, rapid re-soiling often occurs. Another disadvantage is that the spinning bonnet may distort the fibers of cut pile carpet, fizzing the pile and leaving distinct swirl marks.

 

 

Check with your carpet manufacturer because many leading carpet mills recommend against this method of cleaning. Hot water extraction or warm water extraction or steam cleaning (“External Extraction”®) is THE BEST WAY TO CLEAN CARPET according to nearly all carpet manufacturers This method, the best way to clean carpet, is the cleaning method nearly all carpet manufacturers and carpet fiber producers recommend.

 

This is the only cleaning method classified as “deep cleaning”. All the others are considered “light surface cleaning” or “interim cleaning” because they are incapable of removing soil deep in the pile. Also, all other methods leave large amounts of cleaning agent in the carpet after cleaning.

 

With some truck-mounted systems (called PTO’s), the vehicle itself must run in neutral during the cleaning and in many others a separate engine (sometimes with a propane or oil-fired heater) is used to power the unit and heat the water. In both cases, the van MUST be parked well away from the house and positioned so that exhaust fumes do not enter the house. Electric carpet cleaning machines, such as the Bane-Clene systems, do not have this problem.

 

Depending upon the equipment, temperatures may range from cold tap water to boiling hot water and even super heated water over 200 degrees F. Of course, with extremely high temperatures, there are dangers of scalding should a solution line break as well as the danger of damaging the carpet fibers.

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