Objective
At the moment the dry cleaning industry is using CFC 113 for the cleaning of sensitive and delicate garments; by cleaning in other solvents these garments will be damaged.
Since the Montreal Protocol and the European Community (E.C.) marked CFC 113 as a substance with a high ozone-depleting potential, Group I Council Regulation no. 594/91 of 4 march 1991, this solvent will be forbidden from 1 january 1995. So there's a need for another mild dry cleaning solvent as a good alternative to CFC 113.
HCFC 225, a blend of 1,1,1,2,2-pentafluorodichloropropane and 1,3-dichloro-1,1,2,2,3-pentafluoropropane, is classified by the E.C. in Group VI and therefore its use is allowed.
In laboratory tests it turned out to be a potential mild solvent to sensitive and delicate garments, with no corrosion appearance to metals used in dry cleaning machines, with a reasonable cleanability and redeposition, with no flammability and with a low toxicity.
The proposal for this project is to test HCFC 225 in practice and to develop a better gastight dry cleaning machine with a low solvent emission in order to reach a solvent consumption less than 1 %.
Generally, the Project has led to the development of a new dry cleaning machine, named Concorde Techniek, with an adapted cleaning process with suitable additives for dry cleaning in a mild solvent like HCFC 225.
Therefore the drum design (washing tumbler) as well as the top design, which consists of the drying unit, distillation unit, filters and tanks, of the machine should be altered. An improved detergent for the new solvent has to be developed. Also the cleanability and the redeposition of HCFC 225 should be optimized since the laboratory tests are not directly transferable to practice.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Coordinator
2600 JA Delft
Netherlands
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