The Standard Drycleaning Process permits continuous trouble-free operation providing the process elements are maintained. This basic process became the industry standard after the development of several technologies which permitted important elements of the process to be measured, controlled and maintained. Being able to measure, control, and maintain the process elements allowed the drycleaners across the U.S. to see much better cleaning results with far less effort. Over the years, variations in the process have been tried, driven by a number of motivations. None of these variations provide the same quality of drycleaning provided by the Standard Drycleaning Process. However, to understand the implications of these alternative processes, the elements of the Standard Drycleaning Process must be understood, and in turn will provide an index against which these alternative processes can be judged.
The Standard Drycleaning Process consists of three cycles; the Cleaning cycle, the Drain/Extract cycle, and the Drying/Recovery cycle. Good quality drycleaning is dependent on optimal performance in each of these cycles. For this posting we will look at the first part of the cleaning cycle.
Cleaning Cycle Part #1:
The starting point for the Standard Dry Cleaning process is to remove the Insoluble and Solvent-Soluble Soil by lifting the insoluble and solvent-soluble soils off the garments and into the solvent nearest to
the garments (Load Bound Solvent). Most of this occurs during the first minute of the cleaning cycle.
Choices which cause poor results:
- Incorrect type or insufficient detergent concentration
- Does not cause soil to be released from the garments
- Allows free soil to redeposit on the garments
- Soil present in the solvent during the initial filling of the drum
- More difficult to hold additional soil
- More soil available for possible redeposition
- Solvent level too low
- Less solvent available to hold soil
- Overloading the Drum
- Less free solvent for soil to move into
- Less mechanical action to aid in soil removal