Professional equipment designed for dry cleaners and laundries washes clothes through five main stages. The first three are considered “dirty”, the remaining two are considered “clean”.

The first stage is preparatory, called “collection” and takes place even before visiting the laundry or dry cleaner. It involves sorting laundry depending on the degree of soiling. This is especially true, for example, for medical institutions. So, if traces of biological secretions, blood or other similar elements are found on the laundry, it will be washed in a high-intensity mode.

The second stage is called "sorting". In this case, the criterion is the weight of the laundry. This is necessary in order to optimally distribute the equipment load. Thanks to this stage, washing efficiency increases significantly.

Next, the process moves into the third stage - “washing”. The standard algorithm looks like this:

• loading sorted laundry into the hatch (reception hole) of the washing machine;
• supply of washing powder, rinse aid, and other necessary chemicals;
• selecting a washing program and starting the machine.

The process must be controlled by an operator who monitors the load intensity and compliance with safety rules. To achieve the highest possible efficiency of washing carried out on an industrial scale, the following conditions must be met:

• proper quality of water entering the washing machine;
• thorough mechanical mixing;
• sufficient time;
• correctly selected concentration of washing powder and other chemicals;
• choosing a suitable temperature regime.

If tunnel type equipment is used, the process is continuous. Dirty laundry is fed into one hatch, and washed laundry is removed from the other.

The fourth stage includes two technological operations at once; it is called “drying and ironing.” First, the laundry is dried in professional-grade dryers. Then it is smoothed out. At this stage, equipment called “finishing” is used. Its type and functionality are selected taking into account the characteristics of the laundry.

The fifth stage is “packaging”. The process depends on the location of the laundry and the wishes of the customer. For example, for medical institutions and hostels, linen is laid out in sets.