JP6047462B2 - Bathroom wall construction method - Google Patents

Description

  The present invention relates to a method for constructing a bathroom wall surface.

  In recent years, renovation has been actively performed in houses such as detached houses and condominiums, health care facilities for the elderly, nursing care facilities, and hospitals.

  In these buildings, not only rooms and corridors but also bathroom renovations are required. The reason for this is that the side walls and ceiling of the bathroom are easily soiled, and molds are also easily propagated, and various methods for easily remodeling the bathroom walls and ceiling have been studied.

  In recent years, unit baths are often used in bathrooms because of the ease of construction. In general, the unit bath is a combination of floor panels, sidewall panels, ceiling panels, bathtubs, basins, etc. made of hard resin such as FRP for constituting the bathroom, ventilation equipment, electrical equipment, etc. associated therewith, as appropriate. The one that is integrated and configured in advance (see, for example, Patent Document 1). In such a unit bath, since the wall surface made of hard resin tends to have a low surface temperature in winter, a wall material having a high contact temperature may be required.

  As a method of remodeling the side wall and ceiling of such a bathroom, conventionally, the unit bath is replaced or repainted, the existing wall surface and ceiling surface are made of ceramic or glass ceramic tiles, or hard. Many methods have been used in which a resin panel or the like is newly attached with an adhesive.

JP 2001-32546 A

  However, replacement of unit baths is expensive, and repainting may cause a strong odor and may cause health damage to workers and surrounding residents. In addition, ceramic tiles made of ceramics and glass need to be affixed to the wall surface, requiring a long time for construction and advanced technology for forming joints. In addition, since FRP panels are hard, it is necessary to cut them with a circular saw, etc., and they generate noise. Therefore, they are not suitable for use in apartment houses, hospitals, etc. There is a problem that followability is poor with respect to unevenness of the surface of the landing body and it is difficult to adhere. Further, the tile and FRP panel cannot solve the problem that the surface temperature tends to be low in winter.

  Therefore, the present inventors pay attention to the fact that the resin sheet is superior in flexibility and contact temperature feeling to tiles and FRP panels, and is relatively excellent on the wall surface by sticking the resin sheet to the wall portion. We have devised to adopt a technology that can provide good hygiene, aesthetics, and warm feeling of contact, and improve workability. Unlike a tile, such a resin sheet has high flexibility even if it covers a relatively large area such as one side wall of a bathroom at a time, so it can be applied following the unevenness of the wall base surface. .

As a method for attaching such a resin sheet, for example, a method of attaching a resin sheet to a wall via an adhesive sheet having an adhesive layer on both sides, or forming an adhesive layer on a resin sheet, The method of sticking a resin sheet on a wall part can be considered.
However, with the method of attaching via an adhesive layer or an adhesive sheet, once attached, it is difficult to adjust the position and reattach, and it is difficult to remove if wrinkles occur or air enters. Due to this, the construction is difficult, especially when the area of the resin sheet is increased.

As another affixing method, for example, a method of applying an adhesive to the wall and affixing a resin sheet to the wall via the adhesive can be considered.
In the method of attaching using an adhesive, even if it is applied once, the position can be adjusted and reapplied until the adhesive is cured, and the generated wrinkles and air are also recovered until the adhesive is cured. It can be removed. For this reason, it can be said that the construction method using an adhesive has better workability than the construction method using an adhesive layer or an adhesive sheet. In particular, it is suitable for a sheet having a large resin sheet area.
However, in order to attach the resin sheet to the wall portion with sufficient adhesive force, it is necessary to follow the unevenness so that air does not enter, and accordingly, work time is required, leading to a decrease in construction efficiency. .
Further, if there is an unpainted adhesive on the wall, the adhesive force is reduced due to the unpainted wall, and the resin sheet is easily peeled off. Furthermore, the gas from the adhesive collects in the unpainted area, causing the resin sheet to swell and float, making it easier for moisture to enter, so that the resin sheet is more easily peeled off, and mold and bacteria It tends to occur and becomes unsanitary.

  In view of the above problems, the present invention can construct a bathroom wall surface that is relatively excellent in hygiene, aesthetics, and contact temperature by efficiently affixing a resin sheet to the bathroom wall with sufficient adhesive force, Moreover, even when there is a slight unevenness in the underlying wall, a construction method is provided that allows the bathroom wall surface to be constructed with relative ease and good workability while maintaining good waterproofness stably and reliably. This is the issue.

The construction method of the bathroom wall surface of the present invention is:
An application step of applying an adhesive to the bathroom wall;
A pasting step of pasting a resin sheet to the wall portion through the applied adhesive,
In the application step, the adhesive is applied using a porous roller, thereby forming a pattern having a plurality of convex portions by the adhesive on the wall.

  Here, the porous roller in the present invention is a roller having a porous member on its peripheral surface, and examples of such a roller include a mastic hand roller, a pattern roller, a sand roller, a sponge roller, and the like. Can do.

According to such a configuration, by using the porous roller, a relatively large amount of adhesive can be temporarily held on the surface and inside of the porous roller, and the held adhesive can be supplied to the wall. Thereby, since the application amount of the adhesive to the wall portion of the bathroom (application amount per contact between the porous roller and the wall portion) can be relatively increased, sufficient adhesive force can be exhibited. The amount of adhesive can be applied in a relatively short time. Therefore, efficient construction is possible.
And since it can apply simply by rotating a porous roller, efficient construction also becomes possible at this point.
Moreover, the pattern which has the some convex part by an adhesive agent due to porosity is formed by apply | coating an adhesive agent to a wall part with a porous roller. In this way, by applying the adhesive so that a pattern having a plurality of convex portions is formed, regardless of the color tone of the adhesive, between the portion where the adhesive is applied and the portion where the adhesive is not applied on the wall portion Therefore, it is possible to prevent unpainted parts. Thereby, the fall of the partial adhesive force resulting from unpainted can be prevented. Therefore, sufficient adhesive force can be exhibited also from this point. Moreover, since it becomes possible to grasp | ascertain the application quantity of an adhesive agent by visual observation, it also becomes possible to apply an appropriate quantity of adhesives easily.
In addition, since the adhesive has a relatively weak initial adhesive strength, and furthermore, the contact area between the adhesive and the resin sheet becomes relatively small due to the formation of the convex portions as described above. Re-paste is possible, and workability is improved. Such an improvement in workability becomes more prominent particularly when a resin sheet is attached to a large-area wall portion, and it is possible to perform a construction that is quick and excellent in aesthetics.
Furthermore, the resin sheet and the adhesive can be brought into closer contact with each other and sufficient adhesiveness can be exhibited only by removing the air interposed between the resin sheet and the adhesive caused by the convex portion.
In addition, the above-mentioned sufficient adhesive force can prevent moisture from entering between the wall and the resin sheet, so a wall with excellent hygiene that can suppress the generation of mold and bacteria is constructed. It becomes possible to do.
Therefore, it is possible to construct a bathroom wall surface that is relatively superior in hygiene, aesthetics, and contact temperature by efficiently affixing a resin sheet to the bathroom wall portion with sufficient adhesive force, and also as a base wall portion Even if there is some unevenness, the bathroom wall surface can be constructed with relative ease and good workability while maintaining good waterproofness stably and reliably.

Moreover, in the construction method of the bathroom wall surface of the above configuration,
The application step includes
A first application step of applying the adhesive to the center side of the wall by the porous roller;
It is preferable to include a second application step of applying the adhesive to the peripheral side of the wall portion with a comb iron.

According to such a configuration, a relatively large amount of adhesive can be easily and quickly applied to the center side of the wall portion having a relatively large area by the porous roller by the first application step, as described above. Can do.
In addition, by the second application step, a relatively large amount of adhesive can be more reliably applied to the peripheral side of the wall portion where it is difficult to apply the adhesive with the porous roller by a comb iron. . Thereby, the retention strength of the initial resin sheet until an adhesive agent hardens | cures can be improved.
Therefore, a resin sheet can be affixed on the wall part of a bathroom with more sufficient adhesive force.

Moreover, in the construction method of the bathroom wall surface of the above configuration,
It is preferable to further include an air venting step for removing air between the wall portion and the resin sheet by pressing and rubbing the resin sheet after the pasting step.

According to such a configuration, the air mixed between the wall portion and the resin sheet can be more reliably extracted from the periphery of the wall portion and the resin sheet by rubbing while pressing the resin sheet. And a resin sheet and a wall part can be stuck more.
Therefore, a resin sheet can be affixed on the wall part of a bathroom with more sufficient adhesive force.

Moreover, in the construction method of the bathroom wall surface of the above configuration,
The porous roller preferably has 5 to 30 holes per inch (25 mm) formed on the surface thereof.

  Here, the number (number of cells) of holes (cells) per inch, that is, 25 mm, is obtained by drawing a virtual straight line of 1 inch on the surface of the porous roller along the rotation axis direction of the porous roller. Means the number of holes overlapping the virtual straight line. Further, “overlap with the virtual straight line” includes that the virtual straight line partially overlaps the hole. The number of holes is measured based on a measurement method defined in JIS-K6767 (1999: foamed plastic-polyethylene test method). The number of cells is obtained by visually confirming the number of (overlapping) cells existing on one inch of the virtual straight line using an apparatus such as a scaled magnifier.

According to such a configuration, the pores having the number of cells are formed on the surface of the porous roller, so that a relatively large amount of adhesive can be more reliably held on the porous roller and held. An adhesive can be applied to the wall.
Therefore, a resin sheet can be affixed on the wall part of a bathroom with more sufficient adhesive force.

  As described above, according to the present invention, it is possible to construct a bathroom wall surface that is relatively excellent in hygiene, aesthetics, and contact temperature by efficiently affixing a resin sheet to the bathroom wall with sufficient adhesive strength. In addition, even if there is some unevenness in the underlying wall, there is a construction method that allows you to construct bathroom walls relatively easily and with good workability while maintaining good waterproofing. Is done.

The schematic perspective view which shows partially the inside of the bathroom where the construction method of the bathroom wall surface which concerns on one Embodiment of this invention is applied. The schematic perspective view which shows the porous roller used for the construction method of the bathroom wall surface which concerns on this embodiment The schematic perspective view which shows the porous member of the porous roller used for the construction method of the bathroom wall surface which concerns on this embodiment The enlarged view which shows typically the hole part of the porous member of the porous roller used for the construction method of the bathroom wall surface which concerns on this embodiment. The photograph which shows an example of the hole part of the porous member of the porous roller used for the construction method of the bathroom wall surface which concerns on this embodiment. Schematic plan view showing a comb iron used in the method for constructing a bathroom wall according to the present embodiment Schematic which shows the 1st state by which the adhesive agent was apply | coated to the left side wall part of FIG. 1 in the construction method of the bathroom wall surface which concerns on this embodiment. Schematic which shows the 2nd state by which the adhesive agent was apply | coated to the left side wall part of FIG. 1 in the construction method of the bathroom wall surface which concerns on this embodiment. The photograph which shows an example of the state by which the adhesive agent was apply | coated to the side wall part in the construction method of the bathroom wall surface which concerns on this embodiment It is a figure which shows typically the state by which the adhesive agent was apply | coated to the side wall part in the construction method of the bathroom wall surface which concerns on this embodiment, Comprising: Fig.10 (a) is a schematic plan view, FIG.10 (b) is schematic. Cross section Schematic which shows the state by which the resin sheet was affixed on the left side wall part of FIG. 1 in the construction method of the bathroom wall surface which concerns on this embodiment.

  Hereinafter, the construction method of the bathroom wall surface which concerns on one Embodiment of this invention is demonstrated, referring drawings.

  First, a bathroom to which the method for constructing a bathroom wall according to this embodiment is applied will be described.

As shown in FIG. 1, a bathroom 1 to which the construction method of the present embodiment is applied includes a wall portion 3 arranged so as to surround a bathtub 2, for example.
The wall part 3 includes a side wall part 3a and a top wall part (ceiling part) 3b. The material of the wall 3 is not particularly limited. For example, the wall 3 can be formed of a tile, a resin panel, wood, or the like. The wall portion 3 includes a mortar base coated with a paint.

  Next, the construction method of the bathroom wall surface of this embodiment is demonstrated.

  The bathroom wall surface construction method according to the present embodiment is a coating process in which the adhesive 7 is applied to the wall 3 of the bathroom 1 by the porous roller 10 shown in FIGS. 2 to 5 and the comb iron 17 shown in FIG. 7 and FIG. 8) and an attaching step (see FIG. 11) for attaching the resin sheet 5 to the wall portion 3 through the applied adhesive 7.

  As shown in FIGS. 2 and 3, the porous roller 10 used in the present embodiment includes a porous member 11 formed of a cylindrical sponge having a plurality of hole portions (cells) 11 b, and the porous member 11. And a support member 13 that is fitted inside and rotatably supports the member. The support member 13 is a metal or plastic support portion 13a that is fitted into the porous member 11 and rotatably supports the metal, and a metal that is bent and extended in an L shape from one end of the support portion 13a. And a plastic or metal grip portion (gripping portion) 13c disposed at the tip of the arm portion 13b.

As described above, the porous roller 10 is gripped by the grip portion 13c, and the porous member 11 is immersed in the adhesive 7 accommodated in a container (not shown) or the like, whereby the surface portion 11a of the porous member 11 is obtained. The adhesive 7 is once held by the inside, and the porous member 11 holding the adhesive 7 is rolled on the wall 3, whereby the adhesive 7 is supplied from the porous member 11 to the wall 3. The adhesive 7 is applied to the wall 3.
Examples of the porous roller 10 include a mastic hand roller, a pattern roller, a sand bone roller, and a sponge roller. As the porous roller 10, a sand bone roller is particularly suitable. The “sand bone roller” referred to in the present invention refers to a porous roller that can be applied with a thick and uneven coating film.

  Although the forming material of the porous member 11 is not specifically limited, As this forming material, foams, such as a polyurethane resin and a vinyl acetate resin, are mentioned, for example. As the porous member 11 of the present embodiment, it is particularly preferable to use a member that is foamed with a polyurethane resin and then processed into a desired shape.

  The number of the holes 11b included in the porous member 11 is not particularly limited and can be set as appropriate. For example, the amount of the adhesive 7 that can sufficiently exert the adhesive force is sufficiently held by the porous roller 10 and can be sufficiently supplied from the porous roller 10 to the wall portion 3. The size and number can be set as appropriate.

For example, the hole 11b is preferably formed by forming 5 to 30 holes per inch, i.e., 25 mm, on the surface of the porous member 11 of the porous roller 10, and forming 10 to 25 holes. More preferably. The number of the holes 11b is such that when an arbitrary straight line of 1 inch is drawn on the surface of the porous member 11 along the rotation axis S direction of the porous member 11, the plurality of holes 11b per inch. Is set so as to overlap the virtual straight line.
When the number of the holes 11b per inch is 5 or more, it is possible to form the unevenness of the adhesive in a number that can ensure visibility. Moreover, when the number is 30 or less, it is possible to prevent the visibility from being lowered due to the excessive number of irregularities. Setting the number of the holes 11b in this way has the advantage that the visibility of the unevenness of the applied adhesive 7 is improved, and the later-described hole diameter d can also be set to an appropriate size.

As shown in FIGS. 4 and 5, the holes 11b have an irregular shape and are irregularly arranged. The hole diameter d of the hole 11b is represented by the longest diameter of the hole 11b as schematically shown in FIG. Moreover, the space | interval k between the hole parts 11b is represented by the length which connects the hole parts 11b by the shortest distance in the width direction, ie, represents the thickness dimension of the material which partitions off between the hole parts 11b.
The hole diameter d of the hole portion 11b is preferably 0.05 to 4.0 mm, and more preferably 0.90 to 2.0 mm.
For example, FIG. 5 shows, as an example, the result of measuring the partial hole diameter d of the hole 11b in the drawing. In FIG. 5, the hole diameter d is shown as values of L8, L10, L12, L14, L16, L18, L20, and L22.
When the hole diameter d is 0.05 mm or more, the amount of the adhesive 7 that enters the hole 11b is sufficiently large, so that the adhesive 7 can be sufficiently supplied to the wall 3. Thereby, it becomes possible to ensure the application amount (thickness) of the adhesive 7 per unit area necessary for adhesion. Moreover, when the hole diameter d is 4.0 mm or less, the application amount (thickness) of the adhesive does not increase more than necessary, and it is possible to prevent the adhesive from dropping or dripping.
Moreover, the space | interval k between the hole parts 11b becomes like this. Preferably it is 0.05-4.0 mm, More preferably, it is 0.10-0.25 mm.

  In addition, if the hardness of the porous member 11 of the porous roller 10 is too low, the surface of the adhesive 7 is not sufficiently uneven, and if the hardness is too high, the wall 3 does not sufficiently hold the adhesive 7. It tends to be. Therefore, for example, considering such a viewpoint, the hardness of the porous member 11 measured by an ASKER F hardness meter is usually 30 to 60, preferably 40 to 50.

  The outer diameter D of the porous member 11 is preferably 30 to 100 mm, and more preferably 40 to 80 mm. When the outer diameter D is 30 to 100 mm, scattering of the adhesive 7 can be prevented.

  The thickness T of the porous member 11 is preferably 5.0 to 30 mm. When the thickness T is 5.0 to 30 mm, unevenness in the amount of the adhesive 7 supplied to the wall 3 can be suppressed, so that the adhesive 7 can be applied more uniformly.

  As described above, in the porous member 11, the number of the holes 11b is 5 to 30 per inch, the thickness T is 5.0 to 30 mm, and the outer diameter D is 30 to 150 mm. It is preferable that there is a certain configuration.

  The length (width) W1 of the porous member 11 is preferably set to, for example, 50 to 500 mm, and more preferably set to 100 to 250 mm. If W1 is less than 50 mm, it is too short, and the work efficiency may be deteriorated. On the other hand, if W1 exceeds 500 mm, it is too long and pressure is not applied evenly to the porous member 11, so that application spots occur, handling becomes worse, and workability may be deteriorated.

The porous member 11 described above can be manufactured, for example, as follows.
First, a base resin composition such as a urethane foam resin is poured into a roller mold and then subjected to foam molding to obtain a molded body. Next, the molded body is taken out of the mold and wound around a cylindrical base material to produce a cylindrical resin foam, and the porous member 11 is manufactured by cutting the foam into a desired length. be able to. In addition, the porous member 11 may be molded by a conventional molding method such as injection molding, extrusion molding, compression molding, blow molding, vacuum molding, foam molding into a cylindrical shape, or rotational molding.
Further, the number of the holes 11b of the porous member 11 can be appropriately set by adjusting the kind and amount of the nucleating agent contained in the base resin composition in the production of the foam. Examples of the nucleating agent include fine inorganic powders such as talc, silica, diatomaceous earth, clay, alumina, calcium carbonate, and barium sulfate. The amount of the nucleating agent used can be selected according to the desired average number of cell membranes. For example, the addition of a small number (quantity) of nucleating agent results in a small number of large bubbles per unit volume, and the addition of a large number of nucleating agents tends to produce a large number of small bubbles per unit volume. . Therefore, for example, considering such a viewpoint, the amount of the nucleating agent added is preferably 0.1 to 10 parts by weight, more preferably 0.5 to 5.0 parts by weight with respect to 100 parts by weight of the base resin composition. A range of degrees can be selected.
The base resin composition is a conventional additive such as a stabilizer (antioxidant, ultraviolet absorber, heat stabilizer, etc.), flame retardant, lubricant, mold release agent, antistatic agent, filler, colorant. (Titanium oxide, bengara, azo-based, perylene-based, phthalocyanine-based, heterocyclic-based, etc.), a plasticizer, a spreading agent (for example, polyethylene glycol, mineral oil, etc.) and the like may be contained.

  In addition, the outer diameter of the support portion 13a of the support member 13 is not particularly limited, and may be appropriately set according to the outer diameter, thickness, inner diameter, and the like of the porous member 11.

The adhesive 7 used in the present embodiment exhibits adhesiveness by being applied as illustrated in FIGS. 7 and 8 and then cured. Since the adhesive 7 is used in the bathroom 1 with high humidity, it needs to have water resistance.
Examples of such an adhesive 7 include urethane, epoxy, modified silicon, and acrylic adhesives.

The viscosity of the adhesive 7 is such that an amount of the adhesive 7 that can sufficiently exert the adhesive force is sufficiently held by the porous roller 10, and is sufficiently supplied from the porous roller 10 to the wall portion 3. As can be done, it can be set appropriately according to the number of holes 11b of the porous roller 10 and the like.
For example, the viscosity of the adhesive 7 at the time of use (that is, when the porous roller 10 is immersed) is preferably 5000 to 100,000 mPa · s, and more preferably 9000 to 56000 mPa · s. When the viscosity is 5000 mPa · s or more, dripping from the porous roller 10 can be prevented, and a sufficient amount can be applied to the wall 3. Further, since the viscosity is 100000 mPa · s or less, the adhesive 7 can sufficiently enter the hole 11b of the porous roller 10 and can be sufficiently discharged from the hole 11b. The amount of the adhesive 7 that can sufficiently exhibit the above can be sufficiently applied to the wall portion 3 by the porous roller 10.

  According to JISK6833, the adhesive 7 has a viscosity of BH viscometer (manufactured by Tokimec) and rotor No. 6 is a value measured under the conditions of 23 ° C., 50% RH, and motor rotation speed of 10 rpm.

  Further, when the rotation speed of the motor of the BH viscometer was set to 2 rpm and 20 rpm, and the viscosity of the adhesive 7 was measured at these rotation speeds, the ratio of the viscosity at 20 rpm to the viscosity at 2 rpm was set as follows. The TI value of the adhesive 7 is used. The TI value is preferably 2.0 to 7.0, and this has the advantage that the adhesive 7 can be easily applied to the wall 3 and does not easily drip from the wall 3. When the TI value is 1.0, the adhesive corresponds to a Newtonian fluid, and when the TI value is greater than 1.0, it can be said that the adhesive has thixotropy.

By applying the adhesive 7 having such a viscosity with the porous roller 10, as shown in FIGS. 9 and 10, a pattern having a plurality of convex portions 8 is formed by the adhesive 7 applied on the wall portion 3. Can be formed. Specifically, the adhesive 7 can be applied onto the wall 3 so that the adhesive 7 has a shape having a concavo-convex pattern, that is, a shape having a large number of convex portions 8 and concave portions 9. In other words, the adhesive 7 can be applied on the wall 3 so that the convex portions 8 are scattered. In other words, as shown in FIG. 9, the adhesive 7 can be applied on the wall 3 so that a sea-island structure is formed in which the concave portion 9 by the adhesive 7 is the sea and the convex portion 8 is the island. it can. Moreover, the convex part 8 formed on the wall part 3 may be isolated, and may be partially connected.
As shown in FIG.10 (b), the height from the surface of the wall part 3 to the vertex of the convex part 8 is 0.2 mm-3.0 mm, Preferably it is 0.25-2.0 mm, More preferably, it is 0.00. The range is 3 to 1.0 mm.
The recess 9 may be formed by slightly applying the adhesive 7 or may be formed without applying the adhesive 7. The formation of the concave portions 9 without applying the adhesive 7 means that the convex portions 8 are scattered on the wall portion 3 in a state where the convex portions 8 are not at least partially connected by the adhesive 7. The thickness of the recess 9 is preferably 0.2 mm or less.
Moreover, the distance between the protrusions 8 adjacent to each other, that is, the distance between the vertices of the protrusions 8 is preferably 1.0 mm to 20 mm.

Even if water or hot water is used in the bathroom 1, the resin sheet 5 (see FIG. 11) used in the present embodiment is in contact with water or hot water or in the air generated by these. It is a resin-made sheet having durability against contact with water vapor or the like. Further, the resin sheet 5 is more excellent in flexibility and contact temperature than the material of the wall portion 3. The shape of the resin sheet 5 is not particularly limited and can be appropriately designed.
For example, the resin sheet 5 may be formed in a rectangular shape or a polygonal shape according to the shape of the wall portion 3. In addition, the resin sheet 5 may be formed by being drawn out from a roll band-shaped resin sheet wound in a roll shape and cut into a desired shape. Further, a plurality of resin sheets 5 may be arranged and attached to one wall portion 3.
In addition, the resin sheet 5 may have an appropriate cushioning property from the viewpoint of improving the impact resistance, and further from a viewpoint of further increasing the contact temperature feeling in the bathroom 1 from a foam having more heat insulating properties. There may be.
The thickness of the resin sheet 5 is not particularly limited, and can be set as appropriate. For example, the thickness of the resin sheet 5 is preferably 0.5 to 5.0 mm.
The resin sheet 5 may be a single-layer resin sheet or a laminate of two or more resin sheets. In the case where the resin sheet 5 is a laminate, for example, a base material such as a spunbond nonwoven fabric, a base layer that becomes a base of the resin sheet 5 and has an effect of improving strength, grounding, etc. It may be a laminate in which the printing layer and the surface layer that covers the main and exhibits the waterproof property are laminated in this order.

  Next, each process of the construction method of the bathroom wall surface of this embodiment is demonstrated. Here, although the aspect which constructs the wall surface 20 in the side wall part 3a is mentioned as an example among the wall parts 3, it demonstrates, and the same effect is show | played also in the top wall part 3b.

As shown in FIG.7 and FIG.8, in the application | coating process of this embodiment, by apply | coating the adhesive agent 7 to the side wall part 3a (refer FIG. 1) of the bathroom 1 with the porous roller 10, the some by the adhesive agent 7 is used. A pattern having a convex portion 8 is formed on the side wall portion 3a.
Further, in the present embodiment, the application process includes the first application process in which the adhesive 7 is applied to the region R1 on the central side of the side wall 3a by the porous roller 10, and the comb iron 17 shown in FIG. It is preferable to include the 2nd application | coating process of apply | coating the adhesive agent 7 to area | region R2 of the peripheral side of the side wall part 3a.

As shown in FIG. 6, the comb iron 17 has a comb part 17a, for scooping the adhesive 7 and applying the scooped adhesive 17 to the wall part 3 through the comb part 17a. It is. Further, the comb iron 17 can apply the scooped adhesive 7 through the comb part 17a so that the applied surface shape can be a wave having a groove part and a convex part extending along the application direction. It has become.
In the present embodiment, the comb iron 17 has a configuration having a comb portion 17a at one end thereof, but has two or more end edges, and further has comb portions 17a at all end edges. A configuration may be adopted.

The contact width W2 that comes into contact with the wall 3 in the comb portion 17a can be set to 0.5 to 3.0 mm, for example, and the opening width W3 that does not come into contact with the wall 3 is, for example, 0.5 to 2. The depth of the comb (opening depth) H can be set to 0.5 to 2.0 mm, for example.
The size of the comb iron 17 is not particularly limited, and can be appropriately set according to the ease of handling, the application width of the adhesive 7, and the like.
In the present embodiment, a configuration in which the shape of the comb of the comb iron 17 is trapezoidal (the opening portion is triangular) is adopted. However, in the present invention, such a shape is not particularly limited. Absent.

In the first application step, first, the gripping portion 13c of the porous roller 10 is gripped (see FIG. 2), and the porous member 11 is adhered while rotating while being immersed in the adhesive 7 accommodated in a container (not shown). Then, the adhesive 7 is temporarily held on the porous member 11. Next, as shown in FIGS. 7 and 8, the porous member 11 holding the adhesive 7 is applied to the central region R1 of the side wall 3a. Due to the holes 11 b of the porous member 11, irregularities are scattered on the surface of the applied adhesive 7. The application direction by the porous roller 10 is not particularly limited. However, in order to prevent uneven application, it is preferable to sequentially apply the porous roller 10 while rotating the porous roller 10 from the lower side to the upper side in the vertical direction. (See the white arrows in FIGS. 7 and 8).
In the first coating step, as described above, the number of the holes 11b is 5 to 30 per inch, the thickness T is 5.0 to 30 mm, and the outer diameter D is 30. It is preferable to apply the adhesive 7 having a viscosity of 5000 to 100000 mPa · s to the wall portion 3 by the porous member 11 having a thickness of ˜100 mm.

In the second application step, first, the comb iron 17 is grasped (see FIG. 6), and the adhesive 7 accommodated in the container or another container is scooped with the comb iron 17 and the scooped adhesive 7 is removed. As shown in FIGS. 7 and 8, it is applied to the region R2 on the peripheral side of the side wall portion 3a via the comb portion 17a. The applied adhesive 7 is formed with a groove portion and a convex portion (convex wall) extending in a direction along the moving direction of the comb iron 17 according to the shape of the comb portion 17a.
Application by the comb iron 17 can increase the application amount of the adhesive 7 on the peripheral side of the side wall 3a, thereby improving the initial holding force of the resin sheet 5 until the adhesive is cured. Can do.
The application direction by the comb iron 17 is not particularly limited and can be set as appropriate.

For example, as shown in FIG. 7, it can apply | coat sequentially, moving the comb iron 17 in the direction which goes to the center side from the periphery of the side wall part 3a (refer white arrow). Thereby, the side wall part 3a will be in the 1st state from which the groove part of the adhesive agent 7 extends in the direction which goes to the peripheral side from the center side of the wall part 3 and the resin sheet 5. FIG. Therefore, when the resin sheet 5 is pasted, it is guided by the groove portion of the adhesive 7 and air is discharged from the peripheral edge side of the side wall portion 3a and the resin sheet 5, thereby improving the adhesive force between the side wall portion 3a. Can be made.
For example, as shown in FIG. 8, it can apply | coat sequentially, moving the comb iron 17 in the direction along the periphery of the side wall part 3a (refer white arrow). Thereby, the side wall part 3a will be in the 2nd state in which the convex part of the adhesive agent 7 extends in the direction along the peripheral part of the side wall part 3a and the resin sheet 5. FIG. Therefore, this convex part becomes a barrier, and it is possible to prevent moisture from entering between the side wall part 3a and the resin sheet 5.

  7 and 8, the range of the region R1 on the center side of the side wall portion 3a applied by the porous roller 10 is appropriately set according to the construction efficiency, the ease of applying the adhesive 7, and the like. There is no particular limitation. On the other hand, the range of the region R2 on the edge side of the side wall 3a applied by the comb iron 17 can be a portion on the edge side of the region 7 on the central side. Further, the portions applied by the porous roller 10 and the comb iron 17 may overlap each other.

As shown in FIG. 11, in the attaching step of the present embodiment, the resin sheet 5 is attached to the side wall portion 3 a via the applied adhesive 7.
Specifically, before the adhesive 7 applied to the side wall 3a is cured, the resin sheet 5 is attached to the side wall 3a via the adhesive 7 as shown in FIG. Thereby, the surface of the affixed resin sheet 5 constitutes the wall surface 20.
In addition, while applying the adhesive 7, the resin sheets 5 may be sequentially attached to the applied portions.

  As described above, the adhesive 7 applied in the first application process is formed with unevenness, and the adhesive 7 applied in the second application process has grooves, When affixing the resin sheet 5, the air mixed between the side wall 3 a and the resin sheet 5 can be extracted from the peripheral edge of the resin sheet 5 while being guided by these recesses and grooves. Therefore, sufficient adhesiveness can be exhibited more reliably.

  Moreover, as shown in FIG. 11, the construction method of the bathroom wall surface of this embodiment is the air between the side wall part 3a and the resin sheet 5 by pressing and rubbing the resin sheet 5 after performing the said sticking process. It is preferable to further include an air venting process for removing air.

Specifically, in the air venting process, after the sticking process is performed and before the adhesive 7 is cured, as shown in FIG. 11, the resin sheet 5 is removed by a plate-like member 19 having a flat tip such as a spatula, for example. This is rubbed while pressing toward the side wall 3a (see the white arrow in FIG. 11).
Thereby, the air mixed between the side wall portion 3a and the resin sheet 5 is more reliably guided while being guided by the groove and the concave portion of the adhesive 7 applied in the first application step and the second application step. The resin sheet 5 can be extracted from the periphery. Therefore, sufficient adhesiveness can be exhibited more reliably.

  As described above, the method for constructing the bathroom wall surface of the present embodiment includes the application step of applying the adhesive 7 to the wall portion 3 (here, the side wall portion 3a) of the bathroom 1, and the wall portion through the applied adhesive 7. 3 in which the resin sheet 5 is attached, and in the application step, the adhesive 7 is applied using the porous roller 10 so that the pattern having the plurality of convex portions 8 formed by the adhesive 7 is applied to the wall portion. 3 is formed.

According to this configuration, by using the porous roller 10, a relatively large amount of the adhesive 7 is temporarily held inside the surface portion 11 a and the hole portion 11 b of the porous roller 10, and the held adhesive is applied to the wall. Part 3 can be supplied. Thereby, since the application amount of the adhesive 7 to the wall portion 3 of the bathroom 1 (application amount per contact between the porous roller 10 and the wall portion 3) can be relatively increased, sufficient adhesion is achieved. An amount of the adhesive 7 capable of exerting the force can be applied in a relatively short time. Therefore, efficient construction is possible.
And since it can apply simply by rotating the porous roller 10, efficient construction also becomes possible at this point.
In addition, by applying the adhesive 7 to the wall portion 3 by the porous roller 10, a pattern having a plurality of convex portions 8 by the adhesive 7 is formed due to the porosity. Thus, by applying the adhesive 7 so that a pattern having a plurality of convex portions 8 is formed, the wall 7 is applied to the portion where the adhesive 7 is applied regardless of the color of the adhesive 7. Since it is easy to discriminate between parts that are not visible, it is possible to prevent unpainted portions. Thereby, the fall of the partial adhesive force resulting from unpainted can be prevented. Therefore, sufficient adhesive force can be exhibited also from this point. Moreover, since it becomes possible to grasp | ascertain the application quantity of the adhesive agent 7 by visual observation, it also becomes possible to apply | coat the appropriate quantity adhesive agent 7 easily.
In addition, since the initial adhesive strength of the adhesive 7 is relatively weak, and further, since the contact area between the adhesive 7 and the resin sheet is relatively small due to the formation of the convex portion 8 as described above, The resin sheet 5 can be reattached, and workability is improved. Such improvement in workability becomes more prominent particularly when a resin sheet is attached to the wall 3 having a large area, and it is possible to carry out construction quickly and with excellent aesthetics.
Furthermore, the resin sheet 5 and the adhesive 7 can be more closely adhered to each other and sufficient adhesiveness can be exhibited only by removing the air interposed between the resin sheet 5 and the adhesive 7 due to the convex portion 8. it can.
In addition, the above-described sufficient adhesive force can prevent moisture from entering between the wall portion 3 and the resin sheet 5, so that it is excellent in hygiene that can suppress generation of mold and bacteria. The wall surface 20 can be constructed.
Therefore, it is possible to construct the wall surface 20 that is relatively excellent in hygiene, aesthetics and contact temperature by efficiently attaching the resin sheet 5 to the wall portion 3 of the bathroom 1 with sufficient adhesive force. 3 Even when there is some unevenness on the ground, the wall surface 20 can be constructed relatively easily and with good workability while maintaining good waterproofness stably and reliably.

  In the construction method of the bathroom wall surface according to the present embodiment, the application step includes a first application step in which the adhesive 7 is applied to the center side of the wall portion 3 by the porous roller 10, and a wall portion 3 by the comb iron 17. It is preferable to include the 2nd application | coating process which apply | coats the adhesive agent 7 to the edge side.

According to such a configuration, a relatively large amount of the adhesive 7 can be applied by the porous roller 10 to the central side of the wall portion 3 having a relatively large area by the first application process, as described above. it can.
In addition, a relatively large amount of the adhesive 7 is more reliably applied by the comb iron 17 to the peripheral side of the wall 3 where the porous roller 10 is difficult to apply the adhesive 7 by the second application process. can do. Thereby, the retention strength of the initial resin sheet 5 until the adhesive 7 is hardened can be improved.
Therefore, the resin sheet 5 can be attached to the wall portion 3 of the bathroom 1 with a more sufficient adhesive force.

  Moreover, the construction method of the bathroom wall surface of this embodiment is further equipped with the air venting process which vents the air between the wall part 3 and the resin sheet 5 by carrying out the sticking process and then rubbing while pressing the resin sheet 5. It is preferable.

According to this configuration, the air between the wall portion 3 and the resin sheet 5 can be more reliably extracted from the periphery of the wall portion 3 and the resin sheet 5 by rubbing while pressing the resin sheet 5. And the resin sheet 5 and the wall part 3 can be stuck more closely.
Therefore, the resin sheet 5 can be attached to the wall portion 3 of the bathroom 1 with a more sufficient adhesive force.

  Moreover, in the construction method of the bathroom wall surface of this embodiment, it is preferable that the porous roller 10 has 5 to 30 holes 11b per inch formed on the surface thereof.

According to such a configuration, since the number of the holes 11b is formed on the surface of the porous roller 10, a relatively large amount of the adhesive 7 is more reliably held on the porous roller 10, The held adhesive 7 can be applied to the wall 3.
Therefore, the resin sheet 5 can be attached to the wall portion 3 of the bathroom 1 with a more sufficient adhesive force.

  EXAMPLES Next, although an Example is given and this invention is demonstrated in more detail, this invention is not limited to these.

Example 1
The shape of the porous member of the porous roller was changed as shown in Table 1 below, and the workability when the adhesive was applied was examined.
A urethane foam was used as a material for forming the porous member.
As the adhesive, a urethane-based adhesive was used.
Then, the porous member was reciprocated 4 to 5 times in the adhesive pool accommodated in the container, and applied to the side wall portion under the condition of one-way application.
For each porous member, the number of holes was measured and the performance shown in Table 1 was evaluated.
The measurement method, evaluation method, and evaluation criteria for the number of holes (cells) (number of cells) are shown below.

<Measurement method of hole>
The number of holes is the number of cells per inch of the foam, measured based on the measurement method defined in JIS-K6767 (1999: Foamed plastic-polyethylene test method). The number of cells was found by visually confirming the number of cells that existed on the virtual straight line 1 inch along the rotation axis direction of the porous roller, that is, overlapped with the virtual straight line, using a magnifying glass with a scale. .

<Rotation>
Using a porous roller, while rotating the porous roller, the adhesive was actually applied to the wall portion, and the rotational property of the roller was examined by sensory evaluation of the resistance felt to the hand during application. The case where resistance was hardly felt is indicated as “4”, the case where resistance was felt to some extent but there was no problem in construction is indicated as “3”, and the case where resistance was felt but there was no problem in construction was indicated as “4”. The case where the resistance was large and was not suitable for actual use was expressed as “1”.

<Adhesive impregnation>
When the adhesive is impregnated in most of the cells, specifically, the case where the unimpregnated part is 20% or less is represented as “4”, and when the cell is not impregnated in a part of the cells, specifically Represents the case where the unimpregnated part exceeds 20% and 60% or less as “3”, and when the impregnation into the cell is bad, specifically, the case where the unimpregnated part exceeds 60% and 80% or less. When “2” was expressed and the cell was hardly impregnated, specifically, the case where the unimpregnated portion exceeded 80% was expressed as “1”. These are visually evaluated.

<Coating unevenness>
Using a porous roller, the adhesive was actually applied to the wall while rotating the porous roller, and the application unevenness was evaluated by visual observation to examine the occurrence of application unevenness. The case where the adhesive is uniformly applied to the entire surface is expressed as “4”, and the case where the adhesive is applied to the entire surface but the amount of application is partially confirmed is expressed as “3”. The case where the amount of application was confirmed over the entire coated surface was expressed as “2”, and the case where an uncoated part of the adhesive was partially confirmed was expressed as “1”.

<Visibility>
Using a porous roller, the adhesive was actually applied to the wall while rotating the porous roller, and the visibility was examined by visual evaluation. The case where the unevenness of the adhesive can be confirmed even when separated by about 1 m is expressed as “4”, and the case where the unevenness of the adhesive can be confirmed even when separated by about 50 cm is expressed as “3”, and the adhesive is separated by about 50 cm. The case where the unevenness of the adhesive was not confirmed was expressed as “2”, and the case where the unevenness of the adhesive was not confirmed even when approaching 20 cm was expressed as “1”.

<Scattering>
Using a porous roller, the adhesive was actually applied to the wall while rotating the porous roller, and the presence or absence of the adhesive scattering on the ground and the user's body was checked to examine the scattering situation. “4” when almost no scattering was confirmed, “3” when small amount of fine adhesive droplets having a particle size of less than 2.0 mm was confirmed, and large amount of fine adhesive droplets scattered. "2" and "1" when large adhesive droplets having a particle size of 2.0 mm or more were confirmed.

<Coating amount 1>
The application amount was measured by applying the adhesive to a constant area (0.43 m × 0.90 m) of the wall portion and measuring the application amount at that time. Further, the total weight of the porous roller, the adhesive and the container containing the adhesive before and after the application was measured, and the application amount was calculated by subtracting the total weight before application from the total weight after application.

As a result of Table 1, it was found that when the number of cells in the hole portion was 3 to 19/1 inch, the rotation property, the adhesive impregnation property and the visibility were excellent. In addition, it was found that as the number of holes increases, coating unevenness is prevented and scattering is reduced.
It has been found that it is sufficient that the outer diameter D of the porous member 11 is 40 to 70 mm, and when the outer diameter D is increased, the rotation of the roller can be improved.
It has been found that the thickness T of the porous member is sufficient to be 12 to 15 mm, and when the thickness T is increased, the coating amount can be increased.

(Example 2)
Various rollers as shown in Table 2 were used to evaluate the performance. The ultrafine urethane foam sponge roller corresponds to the porous roller 5 in Table 1.
In Table 2, “Woven” indicates that the roller surface is a woven fabric in which a thread-like pile is woven into a woven lining in which warp yarn and weft yarn intersect at right angles. “High pile” indicates a woven fabric in which a cotton-like pile is knitted together with the lining.
Among the performance evaluations, the evaluation of the rotational property, the adhesive impregnation property, the coating unevenness, and the visibility was performed in the same manner as in Example 1. Others were performed as follows. The results are shown in Table 2.

<Transferability>
Using each roller, the transferability was examined by impregnating the roller with an adhesive and visually confirming the application state until the adhesive was applied to the wall surface. When the adhesive is applied to the application surface within 3 reciprocations, it is expressed as “4”, and when the adhesive is applied to the application surface within 4 to 5 reciprocations, it is expressed as “3”, and applied after 6 reciprocations. The case where the adhesive was applied to the surface was expressed as “2”, and the case where the adhesive was difficult to apply was expressed as “1”. The higher the number, the better the transferability.

<Coating amount 2>
The amount of adhesive applied by each roller was measured in the same manner as in the above <Application amount 1> evaluation. A case where the coating amount is 90 g / m ² or more is represented as “4”, and a case where the coating amount is less than 90 g / m ^{2 and} 70 g / m ² or more is represented as “3”, which is less than 70 g / m ^{2 and} 30 g / m ^2. The above case was represented as “2”, and the case of less than 30 g / m ² was represented as “1”. The higher the number, the better the applicability.

<Defect occurrence>
Using each roller, an adhesive was actually applied to the wall while rotating the roller, and the occurrence of defects was examined by visually evaluating the occurrence of defects on the adhesive surface such as hair loss. And when the defect did not occur is represented as “4”, when several defects such as hair loss occurred but there was no problem in construction, it was represented as “3”, and defects such as hair loss occurred. A case where a construction problem occurred was represented as “2”, and a case where a construction problem occurred due to other defects in addition to the hair loss was represented as “1”.

(Roller life)
Using each roller, the roller life was examined by actually applying an adhesive to the wall while rotating the roller, and visually evaluating “sagging” and swelling of the porous member on the peripheral surface of the roller. . The “sag” here refers to a phenomenon in which the porous member is deteriorated and its thickness is reduced, or conversely, it is increased in thickness and loses elasticity. A case where no significant deformation of the shape is confirmed within 1 hour after use is represented as “4”, and a case where a significant deformation of the shape is confirmed within 1 hour after use is represented as “3”. When the roller sags during use, it is expressed as “2” as short, and when the adhesive is applied to the roller, the roller sags and cannot be used.

  As shown in Table 2, it was found that when a porous roller was used, it was excellent in all performance unlike other rollers.

Example 3
The relationship between the viscosity of the adhesive and the coating property was investigated.
Adhesives include “Basnawall Cement” (manufactured by Toli Co., Ltd.), “US Cement” (manufactured by Toli Co., Ltd.), “Super UV Cement” (manufactured by Tori Co., Ltd.), and “Touri Low Odor US Cement” (manufactured by Toli Corp.) “US200” (manufactured by Toli Co., Ltd.) was used. These adhesives are urethane adhesives.
And the viscosity and TI of each adhesive agent were measured, and applicability | paintability was evaluated. Viscosity and TI values were measured by the methods described above. The applicability was evaluated as follows. The results are shown in Table 3.

(Applicability)
In the same manner as in Example 1, the coating property was examined by evaluating the rotation property, the adhesive impregnation property, the coating unevenness, the visibility, the scattering coating amount 1 and the coating amount 2. And what was satisfactory in use by each evaluation item was shown as (circle) as favorable.

  As a result of Table 3, it was found that the coating property was excellent in a viscosity range of 9000 to 56500 mPa · s. Moreover, it turned out that it is excellent in applicability | paintability in the range of TI value of 3.7-5.3.

  Although the embodiments and examples of the present invention have been described as described above, it is also planned from the beginning to appropriately combine the features of the embodiments and examples. Moreover, it should be thought that embodiment and the Example which were disclosed this time are illustrations in all points, and are not restrictive. The scope of the present invention is shown not by the embodiments and examples described above but by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

  1: bathroom, 3: wall part, 3a: side wall part, 3b: top wall part, 5: resin sheet, 7: adhesive, 8: convex part, 9: concave part, 10: porous roller, 11: porous member 11a: Surface portion, 11b: Hole portion, 13: Support member, 17: Comb iron, 17a: Comb portion, 20: Wall surface, R1: Region on the center side of the wall portion, R2: Region on the peripheral side of the wall portion

Claims (3)

An application step of applying an adhesive to the bathroom wall;
A pasting step of pasting a resin sheet to the wall portion through the applied adhesive,
In the application step, by applying the adhesive using a porous roller, a pattern having a plurality of convex portions by the adhesive is formed on the wall ,
The coating process includes
A first application step of applying the adhesive to the center side of the wall by the porous roller;
A method for constructing a bathroom wall surface, comprising: a second application step of applying the adhesive to the peripheral side of the wall portion with a comb iron . After performing the bonding step, according to claim 1, characterized in that the air venting step of venting air between the resin sheet and the wall portion by rubbing while pressing the resin sheet, further comprising How to install bathroom walls. The construction method for a bathroom wall surface according to claim 1 or 2 , wherein the porous roller has 5 to 30 holes per inch formed on a surface thereof.