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TOMORROW’S CLEANING SEPTEMBER 09
Dry extraction satisfaction
EVERYONE LIKES TO SEE A WELL-MAINTAINED CARPET AND THE
DRY EXTRACTION METHOD IS A GREAT WAY TO ACHIEVE THIS
OBJECTIVE, HOST VON SCHRADER TELL US MORE.
It’s important to understand that carpets get the sponges now wipe the dissolved soil
dirty in two ways. Firstly, soil is tracked in on away from the fibres.
the soles of the shoes or accidentally dropped
• The sponges then hold the dissolved soil
onto the surface of the carpet. This comprises
until they are removed by vacuuming. The
the vast majority of soiling at approximately
few sponges that remain are 100% organic
85%. Secondly, the remaining 15% of soil
and will fall to the base of the carpet where
is airborne.
they are removed in later vacuuming.
The type of soil is important and can be put
• Carpets do not resoil as quickly because there
into three basic categories:
is no sticky residue to grab and hold fresh
Dry Soil that can be vacuumed. Dry soil will soil. Because the system does not contribute
end up at the base of the carpet and the to resoiling, regular, frequent vacuuming
carpet may “fill up” and an unsightly traffic keeps the carpet cleaner for longer.
lane will appear.
• Strictly limiting the water used means that
Water soluble soil such as sugars, food, etc. carpets are dry after cleaning. The sponges
This is soil that water and detergent will
The vacuum system must be efficient
absorb soil and no soil is left in solution at
dissolve. This soil tends to stick at the top of
otherwise dry soil will not be effectively
the base of the carpet.
the carpet, appearing as a spot.
removed. An efficient vacuuming system is
one that has a high air flow usually expressed
The development of the dry extraction system
Solvent soluble soil such as airborne cooking
in cubic feet or litres per minute and a brush
has kept pace with the growing market
grease, car park track-off, pollution, smog etc.
or brush/beater bar configuration. As a rule a
requirement for environmentally conscious
This is soil that solvent and detergent
vacuuming system that removes dry soil must
products and chemistry. However, it’s important
technology will dissolve. Again this soil tends
have effective filtration removing particles
to recognise that the biggest problem is dry soil
to stick at the top of the carpet, appearing as
down to one micron.
and this must be removed before any chemistry
a spot.
is used and this includes water!
Dry Extraction Carpet Cleaner is formulated to
In short, carpets get dirty where people walk!
dissolve water soluble and solvent soluble soils
Carpets get soiled where people walk and water
and chemistry should be used sparingly in
Let’s look at the maths - 85% of soil is tracked
and then to absorb them. This is how it works:
those locations. The amount of water used in
in on shoes, this soil is approximately 90% dry
• The cleaner is a soft, organic, natural
dry extraction is as low as one teaspoon per
and 10% oily or sticky. The arithmetic tells you
product consisting of millions of absorbent
square foot and so chemistry is only be used
that over 75% of all soil in carpets is dry and
sponges. These are moistened with a unique
where necessary, on oily and sticky soil.
this can be removed by efficient vacuuming.
emulsion of water, detergent, deodorant and
safe-to-use solvent. Firstly, they carry the
The end result of dry extraction cleaning is
Sticky oily soils bind to the carpet fibres so that
cleaning chemicals to the fibres. The
clean carpet but importantly carpet that is
vacuuming alone will not remove them.
amount of water is strictly controlled and the
ready to use immediately.
Chemical and mechanical action is required to
carpet is not soaked.
break the oil bond and pull the soil away from the
www.hostvonschrader.co.uk
fibres. Then this loosened soil must be removed.
• The machine brushes the moist cleaning
sponges over and around the carpet fibres.
An efficient cleaning system that vacuums away
The chemicals contact all surfaces of the
dry soil, then dissolves and simultaneously
soiled fibres, breaking the oil bond and
removes sticky oily soil is necessary.
dissolving the soil. As brushing continues,
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| TOMORROW’S CLEANING | The future of our cleaning industry
FLOORCARE
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