JP6006529B2 - How to remove dirt on tile surface for outer wall - Google Patents

Description

  The present invention relates to a method for easily removing stubborn dirt, light dirt, and the like adhering to an outer wall tile used as an exterior material of a building or the like.

  The outer walls of buildings such as buildings and condominiums are not easily deteriorated or altered against the natural environment, have excellent durability and weather resistance, and can have a variety of textures, colors, shapes, and textures. Because of its design and unique aesthetics, exterior finishing is often done with exterior tiles such as porcelain tiles, porcelain tiles, and ceramic tiles.

  This exterior wall tile has an initial cost compared to other exterior finishes, but has the above-mentioned advantages, but it is in an environment exposed to sunlight, wind and rain, etc. Atmospheric pollutants such as smoke, dust, dust, and exhaust gas adhere and accumulate, forming stubborn dirt stacked in the thickness direction. This stubborn stain is dried and hardened by irradiation with ultraviolet rays or the like, and sticks firmly to the tile surface, making it very difficult to remove.

  In addition, neutralization of the surface layer of the tile due to infiltration of acid rain and the like, and white phenomenon (eflorescence) occur, and a white pellicle-like substance adheres to the joints between the tiles, and it is gradually left as it is. Not only will it spread and impair the aesthetics, but the deterioration will progress and the appearance will deteriorate further.

  Even if the tile surface, which is generally said to be difficult to stain, is a ceramic tile with a mirror surface, the tile surface has fine holes (fine holes), and as the deterioration progresses, fine cracks occur, causing the above-mentioned air pollutants and molds. Etc. get in. Once dirt enters a small hole, crack or joint, it becomes difficult to remove. Ceramic tiles with a lot of fine holes and cracks naturally have a lot of dirt, and a lot of dot-like dirt is generated on the top and cracks of the fine holes, so that the dirt is conspicuous.

  As described above, light stains on the tile surface, stubborn stains such as air pollutants stuck firmly in the thickness direction, fine holes, cracks, mold and dirt that gets into the joints and adheres to the deck. Rubbing with a cleaning tool such as a brush or sponge scrubber will not remove stubborn dirt, except for minor dirt. Therefore, high-pressure water or high-pressure hot water is sprayed using a high-pressure water washer or high-pressure hot water washer, and contaminants are removed by the impact force (see, for example, Patent Documents 1 and 2).

Japanese Patent Laid-Open No. 2003-33680 Japanese Patent Laid-Open No. 9-242347

  In order to remove stubborn dirt such as air pollutants accumulated in the thickness direction of the tile surface, it is better to spray high pressure water as described above, but if the high pressure water is sprayed, the surface of the tile surface may be damaged. become. Further, even for slight dirt on the tile surface, removal with high-pressure water cannot be used for the same reason as described above. In addition, dirt and mold that adhere to narrow holes, cracks, and joints cannot be removed, and even after washing, spot-like dirt remains and does not become clean, and the original color of the tile cannot be produced. was there.

  The present invention was developed with the object of solving the above-mentioned problems. It is a slight dirt adhering to the surface of the tile for the outer wall and contamination such as smoke, dust, dust and exhaust gas accumulated in the thickness direction. The purpose is to provide a method for removing dirt on the tile surface for external walls that can easily remove stubborn dirt with tightly sticking substances and dirt that has stuck into fine holes, cracks, joints, etc. is there.

As a means for solving the above-mentioned problems and achieving the object, the present invention is a method for removing dirt on a tile surface for an outer wall, such as soot, dust, dust, and exhaust gas accumulated in the thickness direction of the tile surface. The process of grinding a stubborn soiled part A firmly contaminated with a hand-held water sander that spouts water, the process of flushing dirt A 'such as a grinding piece with water 5 , and the dirt A' was washed away. and performing water hitting 6 the tile surface, the weak acid washing solution 8 pH3~pH6 which can be cleaned without damaging the tile surface a step of applying to the tile surface, the weak acid washing solution 8 to the fine hole 9 and cracks or joints 2 is penetrating, characterized in that it consists a step of float the dirt portion C minor fouling unit B and the small hole 9 and cracks or joints 2, the step of removing the dirt portion B and soil portion C by spraying high-pressure hot water 11 Soil removal method of exterior wall tile surface that developed and adopted.

In the present invention, in the method for removing dirt on the tile surface for the outer wall configured as described above, the step of applying the weakly acidic cleaning liquid to the tile surface has a coating amount in the range of 50 to 150 g / m ² and is performed a plurality of times. We developed and adopted a method for removing dirt on the tile surface for the outer wall, which is characterized by being applied in two parts.

According to the method for removing dirt from an outer wall tile surface according to the present invention, contaminants such as smoke, dust, and exhaust gas that accumulate and protrude in the thickness direction of the tile with a hand-held water sander that ejects water are strongly strengthened. The stubborn dirt part that sticks is ground so that it becomes flat, but even if it is stubborn dirt stuck to the tile surface, water is ejected from the handheld water sander and ground. The stubborn soiled part is gradually softened with water, and is easily ground and removed by the contact pressure of the grinding tool, and the water is blown out, so there is no dust scattering during grinding and the work site environment is deteriorated. The surface of the tiles will be clean because the dirt ground by the hand-held water sander is washed away with water.

Also, after washing and cleaning the dirt that has been ground with a hand-held water sander that spouts water, it is applied evenly throughout the application of the weakly acidic cleaning solution for the next process by pre-watering the tile surface. And can effectively remove dirt.

Furthermore, light stains adhering to the tile surface can be washed without damaging the tile surface by applying a pH 3 to pH 6 weak acid cleaning solution, and the weak acid cleaning solution may cause fine holes , cracks, joints, etc. on the tile surface. After entering the surface, washing with water can remove weakly acidic cleaning liquid and slight stains on the surface. In addition, by spraying high-pressure hot water on the pores, cracks, or dirt that remains on the joints, the dirt can be peeled off and removed, and all the dirt that has adhered to the tiles for the outer wall can be removed, making the whole beautiful. It becomes the original color or a close color.

Moreover, the process of apply | coating the said weak acidic cleaning liquid to the tile surface is 50-150 g / m of application | coating amounts. ² By applying the coating in a plurality of times, it is possible to easily and reliably remove the soiled portion adhering to the tile surface.

It is a flowchart which shows the procedure of the stain | pollution | contamination removal of the tile surface for outer walls. It is a partial front view of the tile for outer walls. FIG. 2 is an enlarged cross-sectional view taken along a line II in FIG. 1. It is explanatory drawing which removes a dirt part with a hand-held water sander. It is explanatory drawing which flushes the grind | polished dirt with water. It is explanatory drawing which shows water hammering. It is explanatory drawing which apply | coats a weakly acidic cleaning liquid. It is explanatory drawing sprayed on the tile surface with high-pressure hot water. It is explanatory drawing which the dirt part has adhered to the fine hole. It is explanatory drawing of the state which the dirt part of a fine hole has lifted. It is explanatory drawing of the state from which a dirt part is removed from a thin hole. It is explanatory drawing which removes a dirt part with the grinding tool equipped with the synthetic fiber pad. It is explanatory drawing which removes a dirt part with the grinding tool equipped with the synthetic fiber brush.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a flowchart showing a procedure for removing dirt from an outer wall tile, and FIGS. 2 to 11 are diagrams schematically showing the procedure. It is.

Examples of the outer wall tile according to the present invention include a ceramic tile 1 such as a porcelain tile, a porcelain tile, a semi-porcelain tile, and a porcelain tile, and the surface thereof is a smooth surface 1a, an uneven surface 1b, or a smooth surface. 1a and uneven surface 1b, and the like. The ceramic tile 1 is formed with a tension mortar, and the joint 2 is filled with a joint mortar.

  In the present invention, as a first step, the hand-held water sander 3 is used to grind and remove the stubborn soiled portion A where atmospheric pollutants have accumulated and stuck in the thickness direction of the surface of the ceramic tile 1. is there. The hand-held water sander 3 used here is a known air hand-held device that rotates and drives the grinding tool 4 by an air motor (not shown) incorporated in the body 3a and ejects water from the center of the grinding tool 4 inside. Of course, an electric type may be used.

  When the surface of the ceramic tile 1 is a smooth tile 1a, as shown in FIG. 12, the grinding tool 4 attached to the lower end of the hand-held water sander 3 is a thin film in which abrasive particles are coated on a nonwoven fabric made of nylon fibers. Using a disc-shaped synthetic fiber pad 4a in which the objects are laminated, grinding is performed so that the stubborn dirt portion A becomes a flat surface. At the time of grinding, since water is ejected from the inner central portion of the grinding tool 4, the fine powder of the stubborn dirt portion A does not fly up to the surroundings and does not scatter and does not deteriorate the working environment.

  On the other hand, when the surface of the ceramic tile 1 is an uneven tile 1b, the grinder 4 attached to the lower end of the hand-held water sander 3 is made of nylon fibers or polyester fibers containing abrasive particles, as shown in FIG. Using the synthetic fiber brush 4b, grinding is performed so that the stubborn dirt portion A becomes a flat surface. It is the same as the synthetic fiber pad 4a that water is ejected during grinding and the fine powder of the stubborn dirt portion A is not scattered around and does not deteriorate the working environment.

  When the stubborn dirt portion A protruding in the thickness direction of the tile surface is ground and removed by the hand-held water sander 3 so as to become a flat surface, dirt A ′ such as a ground piece is generated. Rinse with a to clean the tile surface. When the water surface 6 is previously applied to the tile surface from which the dirt A ′ has been washed away and the weak acid cleaning liquid 8 in the next step is applied, it can be uniformly applied and the dirt can be effectively removed. . Also, as shown in FIGS. 2 and 3, if the slight dirt B adhering to the surface of the ceramic tile 1 is to be removed, the tile surface will be ground, and a convex and concave portion will be formed. Grinding with the water sander 3 is not suitable.

Therefore, as a next step, the tile surface is not damaged by applying a weakly acidic cleaning solution 8 having a pH of 3 to 6 to the lightly soiled portion B of the tile surface with a known paint 7 such as a brush, a waste, a roller, or a spray. It is possible to remove the slightly dirty portion B. The weakly acidic cleaning solution 8 is not particularly limited. For example, by using (for example, outer wall cleaner Tile Clean NEO manufactured by ESK Kaken Co., Ltd.), the soil can be removed, and the weakly acidic cleaning solution 8 The fine hole 9 and the joint 2 are also infiltrated , and the dirt portion C adhering to the peripheral wall 9a and the joint 2 of the fine hole 9 is lifted.

The required amount for applying the weakly acidic cleaning solution 8 may be set in consideration of the degree of soiling of the ceramic tile 1, but is usually about 50 to 150 g / m ² . In the application of the weakly acidic cleaning solution 8, the required amount is within the above range, and it may be applied in a plurality of times so long as the weakly acidic cleaning solution 8 enters the fine holes 9 and joints 2 on the tile surface.

  And if the high-pressure hot water 11 ejected from the nozzle 10 is sprayed on the tile surface, it can be removed if there is a slight dirt portion B that has not yet fallen at this point, and the weakly acidic cleaning solution 8 is thoroughly washed and allowed to flow. And the dirty part C of the narrow hole 9 also flows out of the fine hole 9 and is removed without leaving the dirty part adhering to the tile surface. Colors can be obtained.

The discharge pressure at this time can be selected from a low pressure to a high pressure depending on the type and state of the ceramic tile 1, but generally a range of 150 kgf / cm ^{2 to} 500 kgf / m ² is suitable. Within the range, adjust the pressure according to the situation at the site.

  The temperature of the high-pressure hot water 11 is preferably 60 to 100 ° C. If it is 60 ° C. or less, it is not suitable because it has poor permeability. If it is 100 ° C. or more, it is not suitable because it becomes water vapor and cannot be sprayed to the tile surface. A suitable amount of water is 10 to 35 liters / minute. If it is within this range, it will not scatter and the work site will not be submerged, but if it is less likely to scatter depending on the site conditions, the pressure and amount of water are selected.

  As described above, in the embodiment of the present invention, the example of the ceramic tile has been described. However, the present invention is not necessarily limited to this embodiment, and the object of the present invention can be achieved and does not depart from the gist of the invention. Various design changes are possible.

  The present invention is not limited to tiles for exterior walls that are exterior materials for buildings such as buildings and condominiums, but can also be used in methods for removing dirt from exterior wall materials such as stones, synthetic resin plates, and metal plates.

1 Ceramic tile
2 Joint 3 Hand-held water sander 4 Grinding tool 4a Synthetic fiber pad 4b Synthetic fiber brush 5 Water 6 Water hammer 7 Paint tool 8 Weakly acidic washing liquid 9 Narrow hole 9a Perimeter wall 10 Nozzle 11 High-pressure hot water A Stubborn dirt part B Minor Dirty part C Dirty part

Claims (2)

A method for removing dirt on a tile surface for an outer wall, in which water is ejected through a stubborn dirt part A in which contaminants such as smoke, dust, dust, and exhaust gas accumulated in the thickness direction of the tile surface are firmly attached. A process of grinding with a hand-held water sander, a process of washing away dirt A ′ such as a grinding piece with water 5 , a process of water- washing 6 on the tile surface from which dirt A ′ has been washed away, and a pH of 3 that can be washed without damaging the tile surface. a step of applying the weak acid washing solution 8 ~pH6 the tile surface, the weak acid washing solution 8 is entering the small hole 9 and cracks or joints 2, slight soiling unit B and the small hole 9 and crevices or dirt joint 2 A method for removing dirt on a tile surface for an outer wall, comprising: a step of raising a portion C; and a step of spraying high-pressure hot water 11 to remove the dirty portion B and the dirty portion C. The step of applying the weakly acidic cleaning solution 8 to the tile surface has a coating amount of 50 to 150 g / m. ² The soil removal method for an outer wall tile surface according to claim 1, wherein the coating is performed in a plurality of times.