Dry cleaning does not mean not using water, but using detergents and solvents to clean stains or oil stains on clothes. Solvents include alcohol, mineral oil, etc. Solvent can remove stains from clothes, but it will not be absorbed by the fiber itself, so the clothes after dry cleaning will not shrink or become bigger, will not fade, the cloth will not break, and the clothes made of wool will not lose their luster.
At present, there are three kinds of dry cleaning agents used in dry cleaning industry, tetrachloroethylene, trichloroethylene and petroleum ether. Among them, trichloroethylene was once used as an anesthetic in medicine, but it is now prohibited to be used as a dry cleaning agent in China; Petroleum ether is not harmful to human body and environment, but it is flammable and expensive.
Therefore, there are few dry cleaners using petroleum ether as dry cleaning agent; Tetrachloroethylene is much less toxic than trichloroethylene and its cost is moderate than petroleum ether, so it has become the first choice for most dry cleaners.
Tetrachloroethylene is a solvent extracted from petroleum. Colorless, relatively stable, non-flammable, has good solubility in oil and resin stains, and is not easy to decompose in water. It is suitable for dry cleaning all natural fibers.
However, if tetrachloroethylene gas is inhaled for a long time, it will stimulate eyes, nose, respiratory mucosa and skin to a certain extent, destroy liver function, weaken central nervous system, and also cause dizziness, drowsiness, nausea, mental confusion and other symptoms. Regarding the carcinogenicity of tetrachloroethylene, the International Organization for Research on Cancer believes that tetrachloroethylene is one of the suspected carcinogens of human beings.
Joining a dry cleaner, like other stores, needs a storefront as a support, but compared with other industries, the storefront of a dry cleaner does not need to be too big, and joining a small dry cleaner only needs about 30 square meters. Joining dry cleaners requires washing equipment, and the operators of dry cleaners also need to master certain washing and maintenance techniques, so as to ensure the smooth and sustainable operation of dry cleaners. If you want to know more about joining, you can click to learn more about joining projects and learn more about conditions and processes.