Module 2 will introduce you into machine technology and provide important knowledge about the latest technologies. Afterwards you should have an idea how a sustainable production could be implemented in your laundry due to technological measures. The first chapter is about the Sinner Circle which will be repeated in module 3. The Sinner Circle is very basic and shows the four important factors of every washing process.
The four sinner factors are
temperature, time, mechanics and chemistry
chemistry, water, laundry and mechanics
water contents: water hardness (ions), metalions, microorganisms and other dissolved substances
The Sinner Factors are variable within certain limits. If one factor is modified,
it has to be balanced by one of the other factors
this conclusion is wrong
it will be balanced by the other factors automatically
Factor mechanics means
Movement of laundry caused by the movement of the drum
maintenance of the machines
The mechanical action can be affected by:
load ratio, liquaor ratio, contruction and movement (revolutions) of the inner drum. In addition, foaming can disturb the mechanical action.
it cannot be affected. The way the washer extractor or the tunnel washer is build it will work always in the same way.
the length of the time periods between the attendance of the machines and the quality of attendance.
Liquor ratio
is the ratio of the constituents of the liquor (water, soil and washing powder) to each other.
is the water level in drum. Determinated by the quotient of total water volume in the washer extractor to the wash mass expressed in [dm3/kg].
is the water level in drum. Determinated by the quotient of the wash mass to total water volume in the washer extractor expressed in [kg/dm3].
In sectional drums
an increase of mechanical action is observed
a decreased mechanical action is observed
mechanical action is not necessary
Temperature is also a factor of the Sinner circle. Increased temperatures
support the mechanism of the chemical action.
will redundantise disinfection
..., especially really high temperatures lead to a better effect of enzymatical action
Washing time
is in reverse proportion to washing agent concentration and applied mechanics