JP2003145070A - Method of cleaning cloth-lining surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of cleaning a cloth-lining surface which can surely remove the black stains produced on the cloth-lining surface at a back side of a refrigerator, etc., put into place. SOLUTION: This method of cleaning the cloth-lining surface includes a process step 1 of sticking a foamy alkaline cleaner to the cloth-lining surface, a process step 1 of rubbing the cloth-lining surface stuck with the foamy alkaline cleaner by using a brush, etc., a process step 3 of sucking and removing the jetted water and the cleaner while jetting the water to the cloth-lining surface and cleaning the cloth-lining surface, a process step 3a of spraying the alkaline cleaner to the cloth-lining surface removed of the cleaner, a process step 3b of spraying stream to the cloth-lining surface sprayed with the alkaline cleaner and a process step 3c of sucking away the sprayed water and the cleaner while cleaning the cloth-lining surface by spraying the water to the cloth- lining surface sprayed with the steam.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for cleaning cloth which is installed as an interior on a wall surface, a ceiling or the like of a building.

[0002]

2. Description of the Related Art When the surface of a cloth (hereinafter referred to as a cloth tension surface) constructed on the wall surface or ceiling surface of a building becomes dirty, it is replaced with a new cloth or the cloth tension surface is washed. Is being done. The method of replacing the cloth with a new cloth has a drawback in that a new cloth price is required, and the cost for replacing the cloth is high because it requires a lot of man-hours for replacement. For this reason, a method of cleaning the cloth-tightened surface with stains and stains has been proposed and put into practical use.

For example, as a method for cleaning a cloth-clad surface, Japanese Patent Laid-Open No. 8-173365 discloses that a foamed surface is formed by spraying an alkaline detergent onto the cloth-clad surface, and after leaving it for several minutes, the foamed surface is vacuumed. Suction, chlorine system,
A cross cleaning method of applying a finishing agent such as hydrogen peroxide and bleaching is disclosed.

In Japanese Unexamined Patent Publication No. 9-94205, an adhering step for adhering a foam detergent to the cloth-clad surface and the dirt contained in the foam detergent are sprayed with a mixed water of distilled water and antifungal water. A cleaning / removal step of suctioning and removing the water content of the wall surface by a removing means such as a vacuum cleaner, and a spraying step of spraying a mixed water of distilled water and mildewproof water on the wall surface from which this dirt has been cleaned and removed, A method of refurbishing an interior / exterior wall surface, which comprises a spraying step of spraying a dye on the wall surface after the required time has elapsed, is disclosed.

In Japanese Unexamined Patent Publication No. 10-5160, a detergent is applied to the cloth-clad surface in the form of foam, the detergent applied to the cloth-clad surface is removed, and a bleach is applied to the cloth-clad surface from which the detergent has been removed. There is disclosed a method for cleaning a cloth-tensioned surface by applying the bleaching agent and applying alkaline water to the cloth-tightened surface from which the bleaching agent has been removed. The publication describes that the reason why the water made alkaline is applied is that the tar and the like of the cigarette can be completely removed, and the problem that an unpleasant odor is generated from the cloth tension surface can be solved.

Japanese Unexamined Patent Publication No. 2000-313660 discloses that
The alcohol detergent is steamed, the temperature of the steam is sprayed and the steamed alcohol detergent is sprayed to clean and disinfect the cloth cloth at the same time, and the dirt attached to the wall is sucked simultaneously with the spraying of alcohol. Disclosed is a method of refurbishing an interior cloth wall surface, which comprises a sterilization / removal step and a coating step of applying a dye to the cleaned / sterilized interior cloth wall surface. In this publication, since alcohol detergent is used, disinfection effect and deodorant effect are much higher than conventional detergent cleaning using an aqueous solution or foam, contaminants can be easily removed, and rinsing work is required. It is stated that it does not.

Japanese Patent Laid-Open No. 2001-239223 discloses that
Oxygen-based bleach containing sodium percarbonate, hydrogen peroxide solution, magnesium hydroxide, and slaked lime for the purpose of cleaning black stains of cigarette smoke and oil smoke from cooking, and black stains behind air conditioners and refrigerators. And mix it with 60-70
After cleaning the cloth diluted with hot water at ℃ as a cleaning solution, apply a sponge to the cloth-clad surface, then vacuum suction while spraying water on the cloth-clad surface to wash off the adhering substances, and finally wipe the cloth with a cloth to finish. A method is disclosed. Further, in the publication, after applying a cleaning solution and leaving it to stand, a cleaning process can be inserted in order to apply a steam of 70 to 80 ° C. to the cross surface to enhance the bleaching effect and to wash away stains in the irregular eyes. Have been described.

[0008]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
365, JP-A-9-94205, JP-A-1
Japanese Patent Laid-Open No. 0-5160 describes that as a cleaning procedure, first, a foam-like detergent is attached to the cloth-clad surface, and the dirt attached to the cloth-clad surface is removed by the foam-like detergent. There is. When spraying detergent with compressed air,
The foamed detergent can be easily attached to the cloth tension surface, but it is difficult to uniformly apply the foam detergent to the cloth tension surface, especially on the corners and the boundary with the ceiling.

FIG. 5 is a photograph showing a situation in which a foam-like detergent is adhered to the cloth-tensioned surface of the ceiling by using a spray gun. As is clear from FIG. 5, it is difficult to apply the foamy detergent to the cloth-clad surface uniformly and in a uniform thickness. Therefore, in order to evenly attach the foamy detergent attached to the cloth-tightened surface to the entire cloth-tightened surface, especially the boundary between the corner and the ceiling, further extend while rubbing the foamy detergent with a brush or the like. It is considered that a more uniform cleaning effect can be obtained by inserting the process.

Japanese Unexamined Patent Publication No. 2000-313660 discloses that
By steaming and spraying alcohol detergent,
It is described that the cleaning of the cloth-clad surface and the sterilization are simultaneously performed. However, when an alcohol detergent is used, the odor of alcohol is filled in the room and the working environment deteriorates.

Japanese Patent Laid-Open No. 2001-239223 discloses that
An oxygen-based bleaching agent containing sodium percarbonate is mixed with hydrogen peroxide solution, magnesium hydroxide, and slaked lime.
After applying a cleaning solution diluted with hot water at 0 to 70 ° C to the cloth-clad surface, apply steam at 70 to 80 ° C to the stains that are partially conspicuous to enhance the bleaching effect and stains that get into the uneven eyes. It is described to wash away. However, when steam of 70 to 80 ° C. is applied to the cloth tension surface, the bactericidal effect is not sufficient. It is considered that spraying water vapor at the highest possible temperature improves the sterilization effect and also the cleaning effect on the black spots as long as the quality of the vinyl cloth does not change.

Therefore, an object of the present invention is to further improve the above-mentioned conventional method for cleaning a cloth-clad surface, and to provide a refrigerator, an air conditioner, and a T
It is an object of the present invention to provide a method for cleaning a cloth-tensioned surface, which is capable of surely removing black spots generated on the cloth-tensioned surface on the back side where V and the like are installed.

[0013]

The present invention includes the following step 1
~ 5, that is, step 1: a step of attaching a foamy alkaline detergent to the cloth-clad surface, step 2: apply the detergent to the cloth-clad surface to which the foamy alkaline detergent is adhered by the step 1 using a brush or the like. A step of rubbing, a step 3: a step of spraying water onto the cloth-tensioned surface rubbed with the detergent in the step 2 to remove the water and the detergent while cleaning the cloth-tightened surface, step 4: the step 3 A cleaning method for a cloth-clad surface, comprising: a step of applying a bleaching agent to the cloth-clad surface from which the detergent has been removed; and a step 5: a step of applying a neutralizing agent to the cloth-clad surface coated with the bleaching agent.

In the step 2, it is desirable to use a soft brush when rubbing the foamy detergent attached to the cloth tension surface with a brush or the like. The reason for this is to prevent scratches on the cloth tension surface, and to use a soft brush to spread the foam detergent attached to the cloth tension surface evenly to the corners and the boundary with the ceiling. Because you can This makes it possible to obtain a uniform cleaning finish surface for each cloth tension surface in the room. Further, the treatments of the above steps 4 and 5 are effective for cleaning when the sunburn or the tar of the cigarette adheres to the cloth tension surface.

Furthermore, the present invention is a method for cleaning a cloth-clad surface, wherein the following steps 3a to 3c are inserted after the above step 3. Step 3a: spraying an alkaline detergent on the cloth-clad surface from which the detergent has been removed in Step 3, step 3b: spraying steam on the cloth-clad surface sprayed with the alkaline detergent by Step 3a, Step 3c: steaming by Step 3b A step of spraying water onto the cloth-tensioned surface sprayed with to clean the cloth-tensioned surface and sucking and removing the water and the detergent. These steps 3a to 3c are steps performed to remove black stains that could not be removed by the washing in steps 1 to 3 on the cloth-clad surface such as the back of the refrigerator.

The present invention also includes the following steps 1 to 3 and steps 3a to 3c, namely, step 1: a step of attaching a foamy alkaline detergent to the cloth-clad surface, step 2: foaming by step 1. The step of rubbing the cloth-clad surface on which the alkaline detergent is adhered with a brush or the like, Step 3: Water is sprayed onto the cloth-clad surface that has been rubbed with the detergent in Step 2 to wash the cloth-clad surface. And a step of sucking and removing the detergent, step 3a: a step of spraying an alkaline detergent on the cloth-clad surface from which the detergent has been removed in step 3, step 3b: spraying steam to the cloth-clad surface from which the alkaline detergent has been sprayed in step 3a Step 3c: a step of spraying water to the cloth-clad surface sprayed with steam in Step 3b to suck the water and detergent while cleaning the cloth-clad surface. This is a cleaning method for the tension surface. In the cleaning treatment for carrying out the steps 1 to 3 and the steps 3a to 3c, it is necessary to carry out the treatments of the steps 4 to 5 because there is little stain on the cloth-clad surface or there is no sunburn or tar adhesion. It is recommended to apply when there is no.

In step 3a, the concentration of the alkaline detergent to be sprayed is preferably higher than the concentration of the alkaline detergent to be attached to the cloth-clad surface in step 1. The reason for this is that steps 3a to 3c are steps for removing black stains and the like in which stains that could not be removed in steps 1 to 3 are conspicuous, and the concentration of the alkaline detergent should be higher than that used in step 1. This is because the cleaning effect can be improved. The concentration of the alkaline detergent sprayed in step 3a is 2 to 3 times the concentration of the alkaline detergent used in step 1.
It is desirable to double it.

Further, the area where steps 3a to 3c are carried out, that is, the alkaline detergent is sprayed (step 3).
The area a), the area where the steam is sprayed (step 3b), and the area where the water and the detergent are sucked while spraying water (step 3c) are the cloth-tensioned surfaces from which the detergent has been removed in the step 3, and are still blackened. It is desirable to limit it to the area where stains and the like remain. The area where the stain remains is the step 1
It is a region where stains cannot be removed by the processes of to 3 and its vicinity, and does not strictly indicate a region where stains remain. However, the dirt on the cloth tension surface was severe and the process 1
If the removal of stains is not sufficient in the process of step 3 to step 3, the area for performing step 3a to step 3c is
The process may be performed in almost the entire region.

Further, the steam sprayed in the above step 3b is steam generated by heating water such as tap water, the temperature of which is 80 to 140 ° C., preferably 100 to 140 ° C.
It is better to set it to 140 ° C. The reason for this is that if the temperature of the sprayed steam is lower than 80 ° C, the bactericidal effect of the cloth-clad surface is not sufficient, and if it exceeds 140 ° C, the cloth may be altered or deformed due to heat.

The material of the cloth to which the present invention is applicable is
In addition to vinyl cloth, it can be applied to cloth cloth. Further, the cross tension surface to which the present invention can be applied,
It can be applied to the walls of a building or office, walls, and ceilings, as well as the cross-covered surfaces of partitions used as simple partition walls in offices.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION The details of the procedure for carrying out the present invention will be described below in the order of steps thereof. (Step 1) First, a cleaning liquid prepared by diluting an alkaline detergent with water (tap water) about 15 times is poured into a tank of a commercially available foam generator. Then, after closing the lid of the tank, air is supplied into the tank to pressurize the inside of the tank. Next, the spray gun connected to the foam generator is operated to spray the foam-like detergent, and the foam-like alkaline detergent is attached to the cloth-clad surface to be cleaned. At this time, a weak alkaline detergent is preferably used if the cloth-tensioned surface is not so heavily contaminated, and a strong alkaline detergent is preferably used if there is oil stain or the like.

(Step 2) Subsequently, the cloth-tensioned surface to which the foamy alkaline detergent has been attached in Step 1 is rubbed with a soft brush. The treatment of step 2 is performed in order to uniformly spread the foam detergent attached to the cloth-clad surface over the entire region to be washed. Even if the foamed detergent is evenly adhered to the cloth-clad surface using a spray gun or the like, as shown in FIG. 5, the adhered amount tends to be uneven. Furthermore, it is difficult to uniformly attach the foamy detergent to the entire area of the cloth tension surface to be washed, for example, the corners and the boundary surface with the ceiling surface. Therefore, in the present invention, the treatment of step 2 is an important step for improving the cleaning effect. As the soft brush used in step 2, a brush made of horsehair may be used. Also, if you use a soft brush to rub the cloth-clad surface to which the foam detergent adheres, you can evenly spread the foam-detergent without scratching the cloth-clad surface, and at the same time, the abrasion force of the soft brush will help the cloth-clad surface. It is also possible to generate the effect of raising the dirt in the fine uneven surface of. When the treatment of step 2 is completed, it is left for several minutes. During this time, the dirt attached to the cloth tension surface is absorbed by the foam detergent.

(Step 3) By the above step 2, the cloth-clad surface is washed while spraying water on the surface of the cloth-clad surface to be washed which is uniformly spread with the foam detergent, and at the same time, sprayed water and dirt Aspirate the detergent containing. This step 3 is a so-called vacuum rinsing operation for the cleaning surface, and it is preferable to use a commercially available rinser (a rinser having a function of spraying water from a spray nozzle port and sucking and removing the sprayed water). Further, when an antifoaming agent is put in the rinser and the antifoaming agent is sprayed on the cloth-clad surface together with water, the bubbles of the foamy detergent immediately disappear, and the detergent can be efficiently sucked and removed.

(Step 4) Subsequently, a bleaching agent is applied to the cloth-clad surface from which the detergent has been removed in Step 3. As the bleaching agent, a solution obtained by diluting the chlorine-based bleaching agent by about 5 times is applied to the cloth tension surface using a roller or the like. 10 to 1 after application
If left for 5 minutes, the cloth-clad surface will be bleached and stains will be barely noticeable. In addition, the bleaching action of the bleaching agent can remove sunburn, tobacco tar and the like on the cloth-clad surface.

(Step 5) After the cloth-clad surface coated with the bleaching agent in the above-mentioned step 4 is dried, a neutralizer is applied to the cloth-clad surface using a roller or the like. The process of this step 5 is
This is a treatment performed to neutralize the bleaching agent applied in step 4. As the neutralizing agent, a solution obtained by diluting hydrogen peroxide about 5 times can be used.

By the treatments of the above steps 1 to 5, 90% or more of ordinary stains on the cloth-clad surface can be removed.

Black blemishes occur on the back side of the cloth on which the refrigerator, air conditioner, TV, etc. are installed, and the black blemishes may not be removed by the processes of steps 1 to 5. In the present invention, in order to further remove such black spots, after the step 3 described above, the next step 3a
~ Insert step 3c.

(Step 3a) Alkaline detergent is sprayed on the cloth-tightened surface from which the detergent has been sucked and removed in Step 3 described above and where dirt remains. The concentration of the alkaline detergent sprayed in this step is preferably higher than the concentration of the alkaline detergent deposited on the cloth-clad surface in the treatment of step 1. That is, the concentration of the alkaline detergent used in this step may be 2-3 times higher than the concentration used in step 1. For example, a cleaning liquid obtained by diluting the alkaline detergent used in step 1 by about 5 times may be used. The reason for this is that the cleaning action is improved by increasing the concentration of the alkaline detergent in order to remove the black spots that could not be removed by the processes of steps 1 to 3. Also, step 3a
The most important thing in the treatment of this is to spray this alkaline detergent on the area where the black spots remain by using a manual spraying device, etc., and attach the detergent in the form of mist (fine water droplets) on the surface of the black spots. It is to let.

(Step 3b) Steam (steam) is sprayed on the cloth-clad surface sprayed with the alkaline detergent in Step 3a. When steam is sprayed in this way, the water droplet-like detergent that adheres to the areas where stains such as black stains remain easily foams, and has the effect of raising the stains soaked into the fine irregularities on the cloth-clad surface. Promote. At this time, if the nozzle port for spraying steam is brought as close as possible to the cloth tension surface, the water droplet-like detergent will easily foam. After spraying steam, rubbing with a soft brush further promotes the foaming action of the detergent, and further improves the effect of removing stains. It is preferable to use a commercially available steam cleaner or the like for spraying steam.

In this step 3b, the temperature of the steam to be sprayed is 80 to 140 ° C., preferably 100 to 1
Bring to 40 ° C. The reason for this is that by spraying steam at a high temperature, it is possible to enhance the effect of removing stains on heavily soiled portions such as black spots, and at the same time, many bacteria and the like tend to adhere to heavily soiled portions. Therefore, 80 ℃
By spraying the above steam, the bactericidal action can be more reliably performed, and the foaming action of the mist-like detergent can be further promoted. Also, if the steam temperature exceeds 140 ° C, the vinyl cloth may deteriorate,
In the present invention, the temperature is 80-
It is advisable to spray steam at 140 ° C, preferably 100 to 140 ° C. For spraying steam, tap water may be supplied to a commercially available steam cleaning machine to generate steam.

(Step 3c) A rinsing treatment is carried out to suck and remove the alkaline detergent and water while washing the cloth-clad surface by spraying water (tap water) on the cloth-clad surface sprayed with steam in the step 3b. This processing may use the vacuum rinser described above. When the process of step 3c is completed, most of stains such as black spots can be removed. In addition, when terrible stains such as black stains cannot be removed by the single treatment of the steps 3a to 3c, the steps 3a to 3c are performed.
By repeating the process of 2 to 3 times, it is possible to almost certainly remove the black spots and the like.

After the treatment of the step 3c, the washing of the cloth-clad surface of the present invention is completed by carrying out the treatments of the steps 4 and 5 as required.

[0033]

EXAMPLES Examples of the present invention will be described below. (Example 1) The cleaning effect was confirmed by carrying out the present invention according to the following procedure on a cloth-clad surface of a kitchen cloth made of vinyl and having an oil stain of about 1.5 m ² . A photograph of the cross-tension surface before carrying out the present invention is shown in FIG. The color of the vinyl cloth was white with a slight beige color.

(Implementation of Step 1) A weak alkaline detergent (FD-908, manufactured by Tosoh Duboy Chemical Co., Ltd.) diluted 15 times with tap water was used as a foaming cleaner (Form All 10 manufactured by Tosoh Duboy Chemical). ) Was used to attach a foamy detergent to the cloth-tensioned surface, and the mixture was left for 2-3 minutes.

(Implementation of Step 2) The cloth-clad surface to which the foam-like detergent has been adhered in the above-mentioned Step 1 is uniformly rubbed and stretched on the cloth-clad surface by hand using a horsehair brush. I worked.

(Implementation of Step 3) Subsequently, the cloth tension surface uniformly rubbed with the foamy detergent in the above Step 2 was washed with water (tap water) using a commercially available rinser (Spot rinser 14 manufactured by Zao Sangyo Co., Ltd.). ) Was rinsed on the cloth tension surface, and the sprayed water and detergent were removed by suction at the same time.

(Implementation of Step 4) A chlorine-based bleaching agent diluted 5 times with a roller is applied to the cloth-clad surface from which the detergent has been removed in Step 3 above, and the cloth-clad surface is dried by leaving it for about 30 minutes. Let

(Implementation of Step 5) Hydrogen peroxide diluted 5 times as a neutralizing agent was applied to the cloth-clad surface coated with the bleaching agent in the above Step 4 using a roller. The photograph shown in FIG. 1 (a) shows the condition of the cloth tension surface when the process of this step 5 is completed. As is apparent by comparing FIG. 1A and FIG. 1B, when cleaning according to the present invention is performed,
It was confirmed that the cloth-tightened surface with oil stains could almost certainly remove stains and odors.

(Example 2) The cleaning effect of the present invention was confirmed by experiments on the vinyl cloth-clad surface on the back side of the place where the refrigerator was installed. The color of the vinyl cloth is white with a slight beige color. And 90 cm in length × 90 c in width on the back of the refrigerator.
m was selected as the area to be washed. Subsequently, as shown in FIG. 3, the cloth-clad surface 1 is divided into approximately 45 cm × 45 cm 4
Each area was divided into equal parts. Figure 2 (b)
Is a photograph showing the condition of the cloth-clad surface before cleaning. As shown in FIG. 2 (b), a black spot was generated in the area on the cloth tension surface.

Subsequently, after the cloth in the area was peeled off (unwashed sample 1), step 1 which constitutes the present invention was carried out in the area, and a foamy weak alkaline detergent was adhered thereto. As the weak alkaline detergent, as in Example 1, a solution obtained by diluting a weak alkaline detergent (FD-908) manufactured by Tosoh Duboy Chemical Co., Ltd. with tap water 15 times was used. Next, after peeling off the region (Sample 2 in which only step 1 was performed), a foamy alkaline detergent was uniformly spread over the entire region and rubbed with a brush made of horsehair. Step 2 which constitutes the invention was carried out. Subsequently, a process of washing the region, while spraying water (tap water) using a rinser, and simultaneously sucking and removing the sprayed water and detergent, that is,
The process 3 which comprises this invention was implemented.

Subsequently, the area was stripped (steps 1 to 3).
After the sample 3) which was carried out, the area was sprayed with a 5 times diluted weak alkaline detergent (the same detergent as above) using a manual spray to carry out step 3a constituting the present invention. Next, steam (vapor of tap water) at 130 ° C. was sprayed on this region to foam the alkaline detergent, and step 3b constituting the present invention was carried out. The steam is sprayed on a commercially available steam cleaning machine (Hitachi Koki AS20
Shape) was used. Then, after rubbing the foamed region with a brush made of horse hair, the region is washed while spraying tap water using a commercially available rinser, and the process of sucking the sprayed water and detergent at the same time, that is, the present invention, The configuring step 3c was performed. The area at the end of this step is steps 1 to 3 and steps 3a to 3 which constitute the present invention.
3 shows a sample (sample 4) obtained by performing c. FIG. 2A is a photograph showing the condition of the surfaces of Samples 1 to 4 described above.

Comparing the photographs shown in FIGS. 2 (a) and 2 (b), the steps 1 to 3 and the steps 3a to 3a constituting the present invention are compared.
It was confirmed that in Sample 4 in which the step 3c was performed, black stains with particularly bad stains could be removed almost certainly. Subsequently, Steps 4 and 5 constituting the present invention described above were performed.

(Example 3) Regarding the cloth washed in the above Example 2, sample 1 before washing, sample 2 in which only step 1 was performed, sample 3 in which steps 1 to 3 were performed,
The relative reflectance (diffuse reflectance spectrum) of the sample 4 which was subjected to steps 1 to 3 and steps 3a to 3c was measured using a spectrophotometer. FIG. 4 is a graph showing the result of this measurement, which shows 300 to 800 nm on the cross surface.
Samples 1, 2, 3, 4 when projected with light of wavelength
Shows the relative reflectance of. The spectrophotometer used was an ultraviolet-visible-near-infrared spectrophotometer (V-570) manufactured by JASCO Corporation, and the standard material for obtaining the relative reflectance was 100% for the reflectance of pressed alumina powder. %.

The human visible light region is said to be 400 to 760 nm. As is clear from FIG. 4, the sample 4 that has undergone steps 1 to 3 and steps 3a to 3c constituting the present invention has a relative reflectance improved by about 20% as compared with the sample 1 before washing. . That is, it can be said that the brightness of the cloth tension surface to which the present invention is applied is improved by about 20% with human eyes as compared with the cloth tension surface before cleaning.

(Embodiment 4) In the above-mentioned Embodiment 2, with respect to the execution of step 3, that is, the washing water sucked using the rinser, and the execution of step 3c, that is, the washing water sucked using the rinser, General bacteria were cultured by the water test method and the number was measured. In this tap water test method, culturing was carried out at 36 ± 1 ° C. for 24 hours using an agar medium. As a result, the washing water used when step 3 was carried out was 63,000.
The number of cells / ml and the washing water used in step 3a were 3600 cells / ml of general bacteria. As a result, it was found that when the cleaning method of the present invention was carried out, general bacteria on the cloth-clad surface could be significantly reduced compared to before cleaning.

When the present invention is carried out to wash the cloth tension surfaces (for example, the four cloth tension surfaces and the top surface), steps 1 to 3 are performed for each cloth tension surface. After that, Steps 3a to 3c may be subsequently performed, and then Steps 4 to 5 may be performed if necessary. With this process procedure, a single worker can efficiently perform the cleaning work.

[0047]

The method for cleaning a cloth-clad surface of the present invention can exhibit the following effects. 1) Since the entire surface of the cloth-clad surface to which the foamy alkaline detergent is adhered is uniformly rubbed with a soft brush, the foam-like detergent can be evenly spread to the corners of the cloth-clad surface.
As a result, it is possible to obtain a uniform cleaning finish surface for each cloth tension surface. 2) In the case where the heavily soiled portion such as black spots cannot be removed by the washing in steps 1 to 3 constituting the present invention, after spraying an alkaline detergent on this portion, the temperature is 80 to 140 ° C.
Of steam. In the present invention, the spraying of the steam foams the detergent to further improve the cleaning action, so that it is possible to float and remove the black blemishes that have penetrated into the fine irregularities on the cloth tension surface. Furthermore, 80-14
Since steam with a high temperature of 0 ° C. is sprayed, the cloth-clad surface can be sterilized at the same time.

[Brief description of drawings]

1A and 1B are photographs showing a state of stains on a cloth tension surface before and after carrying out the present invention, in which FIG. 1A shows the state after the implementation and FIG. 1B shows the state before the implementation.

[Fig. 2] Regarding a cross tension surface with blackening,
FIG. 2A is a photograph for explaining an experimental procedure for confirming the cleaning effect of the present invention, FIG. 2A shows a situation after cleaning each sample, and FIG. 2B shows a region to be cleaned of each sample. Indicates.

FIG. 3 is a diagram for explaining a region of each section when the cloth tension surface is divided into four sections and washed in order to confirm the effect of the present invention.

FIG. 4 is a diagram showing the results of measuring the relative reflectance of each sample shown in FIG. 2 with a spectrophotometer.

FIG. 5 is a photograph for explaining a situation in which a foam detergent is attached to a cloth-clad surface using a spray gun.

[Explanation of symbols]

1: Cross tension surface

Claims (6)

[Claims] 1. A method for cleaning a cloth-clad surface, which comprises the following steps 1 to 5. Step 1: A step of adhering a foamy alkaline detergent to the cloth-clad surface, Step 2: A step of rubbing the cloth-clad surface to which the foamy alkaline detergent is adhered with a brush or the like, Step 3: The detergent A step of spraying water on the cloth-tightened surface to remove the water and the detergent by suction while washing the cloth-tightened surface; Step 4: apply a bleach to the cloth-tightened surface from which the detergent has been removed Step, Step 5: A step of applying a neutralizing agent to the cloth-clad surface coated with the bleaching agent. 2. After the step 3, the following steps 3a to 3 are performed.
The method for cleaning a cloth tension surface according to claim 1, wherein b is inserted. Step 3a: spraying an alkaline detergent on the cloth-clad surface, Step 3b: spraying steam on the cloth-clad surface sprayed with the alkaline detergent, Step 3c: water on the cloth-clad surface sprayed with the steam A step of sucking and removing the water and the detergent while spraying to wash the cloth-clad surface. 3. The following steps 1 to 3 and steps 3a to 3c
A method for cleaning a cloth-clad surface, comprising: Step 1: A step of adhering a foamy alkaline detergent to the cloth-clad surface, Step 2: A step of rubbing the cloth-clad surface to which the foamy alkaline detergent is adhered with a brush or the like, Step 3: The above A step of spraying water onto the cloth-tightened surface rubbed with detergent to suck and remove the water and the detergent while cleaning the cloth-tightened surface, Step 3a: Spraying an alkaline detergent on the cloth-tightened surface from which the detergent has been removed Step 3b: Spraying steam on the cloth-clad surface sprayed with the alkaline detergent, Step 3c: Spraying water onto the cloth-clad surface sprayed with steam to wash the cloth-clad surface The process of sucking and removing water and detergent. 4. The cloth tensioner according to claim 2 or 3, wherein the concentration of the alkaline detergent sprayed in step 3a is higher than the concentration of the alkaline detergent adhered to the cloth tension surface in step 1. How to clean the surface. 5. The process according to claim 2, wherein the area where the alkaline detergent is sprayed in step 3a is a cloth-clad surface from which the detergent has been removed in step 3 and where dirt remains. The method for cleaning a cloth-clad surface according to item 3. 6. The method for cleaning a cloth-clad surface according to claim 2, wherein the temperature of the steam to be sprayed in step 3b is 80 to 140 ° C.