JP2889908B2 - Single bath two-stage cleaning method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for washing (dry cleaning) clothing for business use, and in one bathing step, a solvent and a detergent having a low affinity are blended with a processing agent having a high affinity. The detergent is simultaneously showered in the processing tank only once in a minimum necessary amount for cleaning and processing, and cleaning and processing are simultaneously performed at this low liquid level (set liquid level). Both agents are circulated only to the first filter to remove only insoluble dirt, and the second stage is circulated to both the first and second filters to gradually remove insoluble, water-soluble and oil-soluble dirt. The present invention relates to a one-bath, two-stage cleaning method and apparatus, characterized in that it removes and enhances a rinsing effect, and at the end of cleaning and processing, removes all dirt and returns only a cleaning solvent to a base tank. is there.

[0002]

2. Description of the Related Art A conventional cleaning apparatus for commercial dry cleaning is generally as shown in FIG. 2, and includes a processing tank 1 (having a rotary processing drum therein) and a base tank 2. , Processing agent tank 3, rinsing tank 4, pump 5, adsorption filter 6 (mainly a hollow cylindrical filter paper charged with activated carbon, deoxidizing agent, etc.), distiller 7, condenser 8, water separator 9, etc. It consists of

The cleaning operation will be described. Initially, the detergent is initially charged while the solvent in the base tank 2 is circulated by the pump 5, and then the clothes are put into the processing tank 1 while the main drum is charged while rotating the processing drum. Then, the cleaning liquid (solvent + detergent) is circulated to the adsorption filter 6 to perform cleaning while adsorbing and removing dirt.

After the cleaning for a set time, the cleaning liquid in the processing tank is returned to the base tank 2, the processing drum is rotated at a high speed to remove the liquid, and the removed liquid is sent to the still 7 and the water is removed by the condenser 8 and the water separator 9. (Discarding) and a solvent (return to the rinsing tank) (distillation treatment), and insoluble dirt is removed as sludge.

After draining, a clean solvent is injected from the rinsing tank 4 into the processing tank 1, rinsed, and drained again (to the base tank).

[0006] The dewatered clothes are processed by spraying various processing agents from the processing agent tank 3 and then dried and deodorized to finish.

[0007] The water repellent treatment is performed on the dried one.

[0008] The cleaning is generally performed as described above, and the other apparatuses are different from each other. However, these conventional cleanings have the following problems, and the solution thereof has been demanded.

[Prior Art Issues]

[0009] Even in the main steps alone, washing-liquid-rinsing-
As in the case of dewatering-processing-drying, the number of steps is large and the time required for one washing is long, so that the number of washings per day is small and the efficiency is poor.

[0010] A large amount of solvent is required for cleaning, and a large amount of detergent is required together with the initial charge and the main charge in relation to the amount of solvent. In addition, most of the detergent is adsorbed by the adsorption filter mainly comprising activated carbon. As a result, cleaning tends to be performed only with a solvent, and a large amount of detergent charge is required, which is extremely uneconomical.

Insoluble dirt (mainly solid matter) is mainly removed by distillation treatment as a residue obtained by evaporating the solvent. However, the distillation treatment consumes heat and electric energy of a distiller, a condenser, etc., and also separates water. The water separated in the vessel has the drawback that it requires a large amount of treatment cost in order to clear pollution regulations such as the removal of solvent toxicities. Therefore, it is desirable to reduce or eliminate the need for distillation treatment if possible. .

[0012]

The present invention has effectively solved the above-mentioned conventional problems by the following method and apparatus. That is, in the present invention, as one bath stage, a set weight of clothing is put into a processing tank, and while rotating the processing drum, a mixed detergent, that is, a detergent having a low affinity for clothing and a processing agent having a high affinity for clothing are used. Simultaneously shower the mixed detergent and solvent in the base tank until the set liquid level is reached, stop showering both agents when the set water level is reached, and wash and process the clothes by rotating the processing drum,

In the first step, both agents in the treatment tank are circulated and sent only to the first filter composed of a paper filter, and only insoluble dirt is removed by filtration.

In the second stage, both agents in the processing tank are circulated to both the first filter and the second filter composed of ceramics and other filters while washing and processing by rotating the processing drum. Feeding, decomposing and removing remaining insoluble and water-soluble, oil-soluble dirt, etc., gradually cleaning the solvent, enhancing the rinsing effect of the clothes, after the set time, leaving only the cleaning solvent, The conventional problem is solved by a one-bath, two-stage cleaning method characterized in that the solvent is returned to the base tank by a dewatering operation.

The one-bath, two-stage cleaning apparatus used in the method of the present invention comprises at least a treatment tank, a base tank, a first filter, a second filter, and a pump. A circuit of a base tank → a pump → a processing tank is formed. In a first stage, a circulation circuit of a processing tank → a pump → a first filter → a processing tank is formed. In a second stage, a processing tank → a pump → a first filter → The second filter is provided so as to form a circulation circuit of the processing tank.

[0016]

Next, the method of the present invention is applied to the apparatus of the present invention (see FIG. 1).
The operation and effect of the embodiment implemented as described above will also be described. As one bath stage, a set weight of clothes is put into the processing tank 1, and while rotating the processing drum, a compounding detergent, that is, a compounding detergent having a low affinity for clothes and a compounding detergent having a high affinity for clothes is mixed. Then, the solvent in the base tank 2 is simultaneously showered until the set liquid level is reached, then the shower of both agents is stopped when the set water level is reached, and the washing and processing of the clothes are performed by rotating the processing drum.

The above-mentioned set liquid level is obtained by mixing a detergent and a processing agent in a minimum amount required for washing and processing of a set weight of clothes in the processing tank 1, and a minimum necessary amount of a solvent, That is, it shows the liquid level in the processing tank 1 when the solvent is poured in such an amount that the clothes can be evenly soaked in the rotation of the processing drum. It is a liquid volume.

The minimum necessary amount of the above-mentioned detergent is, for example, 1
The amount of detergent necessary to remove dirt from the batch of clothes (set weight) is the same as the amount of detergent required. Processing agent.

The solvent used is a general perchlorethylene, petroleum-based solvent, fluorine-based solvent, trichloroethane, or the like. The detergent is compatible with the solvent used, and in particular, has a low affinity for clothing, that is, stains. Use a detergent that does not adhere to the garment but remains soft, fluorescing,
Various processing agents (excluding water repellents) such as resin agents and antistatic agents are compatible with the solvent and detergent used.
In particular, a processing agent having a property having a strong affinity for clothes, that is, a property of adhering well to clothes is used.

Next, as a first stage, the two agents in the processing tank are circulated and fed only to the first filter 10 (paper filter) by the pump 5, and only insoluble dirt is removed by filtration.

Since the first filter 10 is a paper filter, it effectively filters and removes insoluble dirt, that is, solids (dust, fiber waste, etc.), but passes the solvent and the compounding detergent as they are without adsorption. As a result, in the past, the detergent was circulated to the adsorption filter (activated carbon, etc.) at the same time as the start of cleaning, so the detergent was adsorbed by the adsorption filter before the cleaning was completed, and the cleaning effect of the detergent could not be sufficiently exhibited. I lost it.

Subsequently, as a second stage, when the cleaning action by the detergent is substantially achieved, the two agents in the processing tank 1 are removed by the first while cleaning and processing by rotating the processing drum.
It is circulated and sent to both the filter 10 and the second filter 11 to adsorb and remove the remaining insoluble stains, water-soluble and oil-soluble stains, deteriorated detergents, fatty acids, pigments, moisture, etc., and gradually remove the solvent. After cleaning, the effect of rinsing the clothes is enhanced, and after a set time, the solvent is returned to the base tank 2 by a liquid removing operation after leaving only the clean solvent.

The second filter 12 is loaded with various kinds of porous ceramics such as particles and pellets, activated carbon, a deoxidizing agent, etc., and is composed of water-soluble stains, oil-soluble stains, and deterioration caused by washing. This is for decomposing, adsorbing and removing the detergent and the like. Therefore, by simultaneously circulating both agents in the first and second filters in the second stage, all dirt is gradually removed from both agents (the processing agent is attached to and worn on clothing by the processing action). Gradually, only the solvent is removed, which also provides an effective rinsing action, thus eliminating the previously independent single rinsing step.

Further, as described above, since the detergent uses a detergent having a low affinity, the stain on the clothes is efficiently removed. However, the detergent does not adhere to the clothes, and conversely, the detergent does not adhere to the clothes. Since the agent used a processing agent with a strong affinity, it will efficiently adhere to dirt-laden clothing,
Here, one-bath washing, that is, performing the last washing with only the compounded detergent and solvent injected first, can be completely achieved.

After the liquid is removed, a drying treatment is carried out, and if necessary, a water repellent is sprayed to perform a water repellent treatment. That is, different from the conventional method, it can be performed without a rinsing step.

In addition to the above, the present invention has the following excellent advantages as compared with the prior art. 1 bath (only the first two injections)
Two-stage (first and second stage) cleaning, processing-draining-drying-water-repellent processing requires fewer steps compared to the conventional method, so the cleaning time per operation is reduced to about 1/2 of the conventional one. obtain.

Since the initial charge is unnecessary, the detergent can be saved by that amount. Further, since the concentration of the detergent can be lowered, the amount of charge of the detergent for each washing can be significantly reduced.
Also, there is no danger of reverse contamination of clothing.

Since the contact time between the clothes and the detergent is short,
It does not impair the texture of clothing.

Since a detergent having a low affinity is used, the residual detergent of the clothing is extremely small, and the fabric is processed well with a processing agent having a high affinity, so that a new feeling of clothing can be maintained.

Except in the case of special cleaning, distillation can be performed without any need for ordinary cleaning, so that there is almost no need to remove residues and control the pollution of separated water by drainage. I got it.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of the apparatus of the present invention.

FIG. 2 is a diagram showing a schematic configuration of a conventional device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Processing tank (with processing drum) 2 Base tank 3 Processing agent tank 4 Rinse tank 5 Pump 6 Adsorption filter 7 Distiller 8 Condenser 9 Water separator 10 First filter (paper filter) 12 Second filter (ceramics, activated carbon) , Filter loaded with deoxidizer, etc.)

Claims (5)

(57) [Claims] 1. In one bath stage, a set weight of clothes is put into a processing tank, and a mixing detergent, that is, a detergent having a low affinity for clothing and a processing agent having a high affinity for clothing are mixed while rotating a processing drum. The combined detergent and the solvent in the base tank are simultaneously showered until the set liquid level is reached, the shower for both agents is stopped when the set water level is reached, and the washing and processing of the clothes are performed by rotating the processing drum. Filter both agents in the processing tank with a paper filter
Circulating feed only to the first filter consisting of , filtering and removing only insoluble dirt, as a second step, washing by rotating the processing drum,
While processing, the two agents in the processing tank are removed from the first filter and a filter filled with ceramics and others.
That circulates fed to both the filter of the second filter, dirt and water-soluble the remaining insoluble dirt etc. decompose adsorption removal of oil-soluble, gradually solvent was cleaned, increases the effect of rinsing clothes, A one-bath, two-stage cleaning method, characterized in that after a set time, only a clean solvent is set, and the solvent is returned to a base tank by a dewatering operation. 2. At least a processing tank, a base tank, a first tank,
With a filter, a second filter, and a pump
And In one bath stage, form base tank → pump → processing tank circuit
And In the first stage, processing tank → pump → first filter → processing tank
Form a circulating circuit of In the second stage, processing tank → pump → first filter → second filter
Filter to provide a circulation circuit for the processing tank
Is,  One-bath, two-stage cleaning device. 3. A minimum amount of detergent and a compounding detergent containing a minimum amount of detergent and processing agent for washing and processing of the set weight of clothing, and a minimum amount of solvent, that is, a uniform rotation of the processing drum. A small amount of liquid that can be pickled without pickling
Washed with a solvent of the constant liquid level is obtained by such processing, one-bath two-step cleaning method of claim 1. The solvent used is a general perchlorethylene, petroleum-based solvent, fluorine-based solvent, trichloroethane or the like, and the detergent is compatible with the solvent used and has a property having a low affinity for clothes, that is, Uses a detergent that does not adhere to the clothes but remains on the clothes. Various processing agents such as softeners, fluorescent agents, resin agents, and antistatic agents
Is obtained so as to use with those adapted for use solvents and detergents, especially strong nature affinity for clothing, i.e. the processing agent of property of adhering well to the garment, one bath of claim 1 2 Stepwise cleaning method. 5. A first filter, which filters and removes insoluble dirt, which is mainly a solid substance, among water-soluble, oil-soluble and insoluble dirt caused by washing, but does not adsorb the solvent and the compounded detergent. Use a paper filter that passes through the filter as it is, and as a second filter, decompose and adsorb water-soluble and oil-soluble stains caused by washing, deteriorated detergents, fatty acids, pigments, moisture, etc. The one-bath two-stage washing method according to claim 1, wherein a filter loaded with an acid agent or the like is used.