Dry cleaning machine and method of dry cleaning

Abstract

The object is to avoid contaminating the washing conversely by contaminated detergent and provide a dry cleaning machine and dry cleaning method, solving hygienic issues. In a dry cleaning machine which supplies detergent from a detergent tank 11 to a washing tank 10 and washes the washing in the washing tank 10 and treats detergent used in the washing tank 10 by a filtering tank 16 and sends the treated detergent to the washing tank 10 to use detergent cyclically, wherein contaminating the washing conversely by washing can be prevented, as detecting contamination level of detergent discharged from the washing tank 10 while supplying detergent to the washing tank 10 and washing the washing, and when the detergent contamination level reached a prescribed threshold level, storing the detergent discharged from the washing tank 10 temporarily and sending the detergent to a distiller 14 and supplying fresh detergent from the detergent tank 11 to the washing tank 10.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] This invention relates to a dry cleaning machine using a solvent as a detergent and preventing contamination of the washing caused conversely by washing. [0003] 2. Description of the Related Art [0004]FIG. 5 is showing a constitutional block diagram of a dry cleaning machine by prior art. [0005] In FIG. 5, a drum-formed washing tank 1 is for washing the washing by rotating drum, throwing the washing into the drum tank, supplying a detergent (tetrachloroethylene or the like). The contaminated detergent after using is stored in a lower tank 2. This detergent is sent into a filtering tank 4 and forwarded to a refining tank 5 by a pressure pump 3. In the refining tank 5, the detergent is refined to remove odors, acids and colors with filters, activated carbon and the like and then returned into the drum tank 1 to be reused. [0006] In the dry cleaning machine shown in FIG. 5, washing power of the detergent is remarkably ...

AI Technical Summary

Benefits of technology

[0025] As mentioned above, according to this invention, the dry cleaning machine detects detergent contamination discharged from a washing tank then if the contamination level goes over prescribed value, stores the contaminated detergent in a contaminated detergent tank temporarily and supplies fresh detergent to the washing tank to prevent contaminating the washing conversely by washing. Therefore, the dry cleaning machine can use circulating detergent and clean the washing to supply clean detergent always not contaminating the washing to the washing tank.

[0026] According to this invention, the dry cleaning machine can prevent to contaminate the washing conversely by washing as cutting off the line to sup

Problems solved by technology

In addition, the detergent filtering in the filtering tank works well just after the dry cleaning machine running, but, as increasing washing cycle number, some waste threads, dirty oil or other dirt in the detergent stick on a filter and clog up the filter.

When clogging up the filter, filtering efficiency is rapidly sinking and a volume of detergent flowing is going down.

That, however, cannot solve the issue of contaminating the washing conversely by washing.

Furthermore, there is apprehension that increasing detergent pressure in the filtering tank damages the filtering tank or the refining tank easily and then it possibly contaminates the washing by supplying contaminated detergent to the washing tank

There are still issues of contaminating the washing conversely by washing and bad hygiene.

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