JPS636354Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a unit tile used for adhering to an adhesive-coated substrate (hereinafter referred to as the substrate) with an adhesive coated on the adhesion surface in a reliable state of adhesion. .

Conventional unit tiles include, for example, the one shown in FIG. Unit tile B in the same figure is
A large number of unit tiles 1 arranged at desired joint intervals are integrated by pasting a coarse mesh connecting material 2 made of water-resistant paper or the like on the back side of the unit tiles 1. The back surface of this unit tile B is not smooth because the back surface itself of the unit tile 1 is not smooth, and unevenness is formed due to the thickness of the attached net-like connecting material 2. The adhesive layer did not adhere well when attached to the adhesive layer, and there were parts on the back side of the unit tile B that did not adhere to the adhesive layer. In such a case, a problem arises in that not only the entire unit tile B but also each unit tile 1 has poor adhesive strength. In particular, if such a unit tile B is attached to a place where it will be exposed to hot water for a long period of time, such as a bathroom, the hot water will penetrate into the interface between the adhesive layer and the back surface of the tile, where the adhesion is insufficient, and the unit tile 1 will be damaged. There was a risk that it would peel off. As described in Japanese Utility Model Application Publication No. 54-11027, unit tiles are made by impregnating a non-woven fabric with resin or mortar in an area approximately equal to the area occupied by a large number of array tiles, and applying this to the back surface of the array tiles. Some are attached to. However, since the back surface of the nonwoven fabric was rough, this product had the same problem as the unit tile B described above. Although it is possible to solve such problems to some extent by using a pressing device or the like to firmly adhere the unit tile to the surface to be adhered,
If such a device is used at a construction site, it will actually impair work efficiency. In particular, it is almost impossible to bring a pressing device into a bathroom or the like for work.

The present invention was devised with the aim of eliminating the drawbacks of the conventional unit tiles. A connecting tile in which a large number of unit tiles arranged at a joint interval of The adhesive layer is an adhesive layer formed by spreading and adhering an organic adhesive such as urethane-based or epoxy-based adhesive, or a rubber-based or acrylic adhesive onto the back surface of the connecting tile. and a 0.2 to 0.5 mm smooth sheet to be adhered to the target substrate, which are formed in two layers by pressure bonding.
With this, without using any special equipment,
A finished wall surface with sufficient adhesive strength can be obtained even by hand. Moreover, the unit tile for adhesion to a base with adhesive material according to the present invention not only has good manufacturing efficiency, but also has the ability to damage the smooth surface of the adhesion layer even during transfer and transportation as long as it is handled normally. There is no risk of receiving

The present invention will be explained below based on embodiments shown in the drawings. Unit tile for pasting adhesive-backed substrates according to the present invention (hereinafter referred to as the unit tile)
The first embodiment is as shown in FIG. 2 when viewed in plan from the front side, and as shown in FIG. 3 when viewed in cross section along the - line in FIG. 2. As can be seen from FIG. 2, the unit tile A of the first embodiment uses the same connected tiles as the conventional unit tile B shown in FIG. 1. In addition,
In the present invention, a unit tile similar to the conventional unit tile B is called a connected tile because it is used as a component of the unit tile of the present invention. Connected tiles are unit tiles 1
A large number of tiles (nine in this embodiment) are arranged in a rectangular shape with a desired joint spacing between them, and a net-like connecting material 2 is attached to the back surface of the arranged tiles to integrate them. An adhesive construction layer is provided on the back side of this connected tile so as to cover the entire surface thereof. What is important for the adhesive construction layer is that its area is the same as or slightly larger than the area of the connected tiles, so that the adhesive surface 5 to be adhered to the substrate to be adhered is well adapted to the adhesive. It should be smooth. Therefore, in this embodiment, an adhesive layer is added on the side to be bonded to the back surface of the connected tiles.
The smooth sheet 4 was used on the side to be adhered to the substrate to be adhered, and both were pressure-bonded to form a two-layer integrated adhesive construction layer. The adhesive layer 3 can be glimpsed from the joint spacing between the unit tiles 1 in FIG. The adhesive used to form the adhesive layer 3 is appropriately selected from organic adhesives such as urethane-based and epoxy-based, rubber-based, and acrylic-based adhesives. The smooth sheet 4 is a PVC sheet,
Materials such as nylon sheets and metal foils that can be firmly bonded to organic adhesives or pressure-sensitive adhesives, and whose thickness
Use one with a diameter of 0.2 to 0.5 mm. If the thickness of the smooth sheet 4 is less than 0.2 mm, the stiffness of the proposed unit tile will become weak and the workability during construction will deteriorate.
If it is thicker than mm, the flexibility will be poor and it will be difficult to adapt to the surface to be adhered, which is often curved in a wavy manner, and good adhesive strength may not be obtained. On such a smooth sheet 4, an organic adhesive or pressure-sensitive adhesive selected as described above is spread thinly to form an adhesive layer 3, and a connecting tile is placed on top of the adhesive layer 3, and a pressing force is applied using a press or the like. Add and glue. Therefore, complete adhesion with no gaps present can be obtained between the connected tiles and the smooth sheet 4 via the adhesive layer 3.

The unit tile of the present invention may be implemented using connected tiles of the form shown in FIGS. 4 and 5. The connecting tile in FIG. 4 has a button-shaped connecting material 2a attached to the corner portion of the four tiles and the outer side of the opposite side of the adjacent unit tile 1 to connect the array tiles on the back side. 2a'. Button-shaped connecting material 2a, 2
For a', water-resistant paper may be glued or non-woven fabric impregnated with resin may be attached to the required locations. In the connecting tile shown in Fig. 5, the connecting strip 2b is pasted along the vertical (or horizontal) joint, and the unit tile 1 is placed on the outside of the opposing side in the part where the connecting strip 2b is not pasted. The square piece-like connecting material 2c is pasted on the tile, and the array tiles are integrated.

Figure 6 shows the proposed unit tile A ₁ of the second embodiment.
FIG. 7 is a plan view taken from the surface side, and FIG. 7 is a cross-sectional view taken along the - line in FIG. 6. The unit tile _A1 of the second embodiment uses the connected tiles shown in FIG. The main point in which the unit tile _A1 of the second embodiment differs from the first embodiment shown in FIGS. 2 and 3 is in the adhesive layer, particularly in the smooth sheet 4a. This smooth sheet 4a has the length of each vertical and horizontal side longer than the length of each vertical and horizontal side of the connected tiles by an amount corresponding to the joint spacing, respectively, to form joint-equivalent expansion parts 6, 6'. However, it is formed wider than the area of the connected tiles by that much. Then, the smooth sheet 4a causes the expanded portions 6, 6' corresponding to joints to protrude in a linear manner along the side edges of the connecting tiles, and is adhered via the adhesive layer 3 so as to completely cover the back surface of the connecting tiles. As can be seen from the proposed unit tile A of the first embodiment and the proposed unit tile A ₁ of the second embodiment, the main point of the present invention is to cover the entire back side of the connected tile with two layers of adhesive layer and smooth sheet. By covering with an integrally formed adhesive construction layer, the adhesive surface of the obtained unit tile of the present invention is made into a smooth surface that is familiar to the adhesive layer provided on the substrate to be adhered. .

Next, a method of constructing the unit tile of the present invention obtained as described above will be explained with reference to FIG. In the substrate 7 to which the unit tile A of the first embodiment is attached, joint bars 9 are provided on one side of the base material 8, which is the main material, at intervals corresponding to one unit tile A of the invention. An adhesive layer 10 of acrylic, rubber, etc. is coated on the surface of the area excluding the joint bar 9, and a release paper 11 is coated on the surface of the adhesive layer 10.
It has a structure in which it is coated with The substrate 7 configured in this way is fixed to the rim 12 with nails 13, etc., and then the release paper 11 is peeled off, and the lower surface of the unit tile A of the present invention is brought into contact with the joint crosspiece 9 to form horizontal joints. The area is adjusted, and the adhesive layer 10 is thus manually pressed and adhered. The construction method for the proposed unit tile _A1 of the second embodiment is carried out in the same manner, but in this case,
The joint-equivalent extensions 6, 6' protruding from the side edges of the connected tiles are similar to those of other adjacent original unit tiles A ₁
Since it regulates the joint width between the base plate 7 and the base plate 7, it is not necessary to provide the joint crosspiece 9.

In order to confirm the effect of the proposed unit tile, the inventors of the present invention used the proposed unit tile A of the first embodiment.
A comparative test was conducted on the adhesion state of the conventional unit tile B and the substrate 7. The comparative test is 100mm
Eight pieces each of the proposed unit tile A, which is a connected tile using corner unit tiles, and the conventional unit tile B are prepared, and these are pasted on the same board 7, and the pasted board 7 is After being immersed in hot water at 50°C for 100 hours, the unit tile A of the present invention and the conventional unit tile B were forcibly peeled off, respectively, and the observable effective adhesive area ratio and adhesive strength were measured. As a result of this test, the effective adhesion area ratio of the unit tile A of the present invention was 95%, and the adhesive strength showed the highest value expected for adhesion through an adhesive layer. In contrast, the effective adhesive area ratio of conventional unit tile B was 30%, and the adhesive strength was such that it could be peeled off manually. Note that peeling of the unit tile A of the present invention was performed using a Kenken type adhesive force tester.

The above-mentioned good effects of the unit tile of this invention are due to the construction in which the entire back surface of the connected tile is covered with an adhesive layer with excellent adhesive strength and an adhesive layer formed by strongly pressing a smooth sheet. This is because the smooth adhesive surface that blends well with the adhesive layer provided on the mounting substrate is tightly adhered, and this allows the adhesive layer of the proposed unit tile and the adhesive provided on the substrate to be closely bonded. This is because no voids were created through which water could enter at the interface with the surface of the agent layer.

Since the proposed unit tile is as above,
Even if this is used for construction on walls that will be wet with hot water for a long period of time, such as in bathrooms, hot water will not infiltrate the bonding boundary surface, and therefore, not only individual unit tiles, but also the proposed unit tiles. It does not peel off. Moreover, its waterproof effect also contributes to the reinforcement of the unit tile itself. Furthermore, in the case of the unit tile of the present invention using a smooth sheet provided with an expanded portion corresponding to a joint, the expanded portion corresponding to a joint also enhances the waterproofing effect of the joint portion (seam) between unit tiles. Furthermore, since the unit tile of the present invention is constructed using connected tiles, the tiles are arranged in an orderly manner, and therefore, an orderly finished tile wall surface can be obtained. Furthermore,
Since the adhesive construction layer of the proposed tile is formed of two layers, an adhesive layer and a smooth sheet, it exhibits excellent effects in the manufacturing process and the distribution process. First, when manufacturing unit tiles, the adhesive used to form the adhesive layer is in the form of a sol, so it is extremely difficult to smooth the adhesive surface of the adhesive layer using only this adhesive. However, in the case of the proposed tile, since a smooth sheet is used, the surface to which the adhesive layer is applied can be made smooth by itself without any modification.
Second, if you try to form an adhesive construction layer using only adhesive, it will require a considerable amount of curing time to harden until it can withstand the vibrations of transfer and transportation. Since the surface uses a smooth sheet that is in a solidified state from the beginning, no curing time is required, which contributes to an improvement in manufacturing efficiency. Third
In addition, even if the adhesive construction layer formed only with adhesive is in a completely solidified state, if it is touched by another person, the smoothed adhesive surface is likely to be damaged. Since the adhesive surface is covered with a strong smooth sheet, there is no risk of damage unless something happens to it.

[Brief explanation of drawings]

Fig. 1 is a plan view of the conventional unit tile B seen from the back side, Figs. 2 to 8 are for explaining the proposed unit tile, and Fig. 2 shows the unit tile of the first embodiment. FIG. 3 is a cross-sectional view of FIG. 2, FIGS. 4 and 5 are plan views of connecting tiles used in other embodiments as seen from the back side, and FIG. 6 is a plan view of A viewed from the front side. 5 is a plan view of the unit tile _A1 of the second embodiment using the connected tiles shown in FIG. 5, viewed from the front side, and FIG.
The cross-sectional view, Fig. 8, is the unit tile A shown in Fig. 3.
It is a partial sectional view showing a construction method using. 1...Unit tile, 2, 2a, 2a', 2b, 2
c... Connecting material, 3... Adhesive layer, 4... Smooth sheet.

Claims (1)

[Scope of utility model registration request] A connecting tile in which a large number of unit tiles arranged at a desired joint interval are integrated with a connecting material such as a net shape, button shape, band shape, square piece shape, etc. pasted on the back side, and a connecting tile whose entire back surface is The adhesive layer consists of a covering adhesive construction layer, and the adhesive construction layer is an adhesive formed by spreading and adhering an organic adhesive such as urethane-based or epoxy-based adhesive, or a rubber-based or acrylic adhesive onto the back surface of the connected tile. should be attached to the adhesive layer and the substrate to which it is attached.
A unit tile for adhesion to adhesive-backed substrates, characterized by being formed by pressure bonding in two layers with a smooth sheet of 0.2 to 0.5 mm.