JP4832332B2 - How to apply a decorative sheet - Google Patents

Description

  The present invention relates to a method for installing a decorative sheet.

  Conventionally, a dry construction method using tiles, building material sheets, etc. has been adopted for surface finishing of the inner and outer wall surfaces of buildings. In the dry method, it is possible to finish the surface easily and with excellent aesthetics.

As one of the problems in the surface finishing of such a dry construction method, a surface finishing method for a curved surface of the inner and outer walls of a building has been pointed out.
That is, normal tiles and building material sheets cannot be folded, and even if they can be folded, cracks and the like occur, so it is difficult to construct tiles and building material sheets on curved portions.

For such a problem, Patent Document 1 describes a method of fitting a specific joint fitting member into a joint part of a tile.
In such a method, at least a step of applying the mortar to a substantially uniform thickness, a step of applying a large number of tiles on the surface of the applied mortar in a lattice pattern, leaving joints with a substantially constant width between each other, A process of fixing the joint fitting member before covering it and covering the joint mortar, and a step of cleaning the surface of the tile and the joint fitting member are required (claim 8), which is not a simple method.
In addition, there is no reinforcement between the tiles, and may not be able to follow the fluctuation of the base material, which may cause poor adhesion, water resistance, and cracks, degrading the aesthetics of the curved part. There is a risk that.
Also, as in Patent Document 2, in the method of forming joints by applying mortar in the gap between tiles, there is a high possibility that voids are inevitably generated in the tiles and mortar parts. If such a void portion is generated, it may cause a decrease in adhesion, water resistance, and cracking, and the aesthetics of the curved surface portion may be impaired.

JP-A-8-284361 JP-A-10-102735

  An object of the present invention is to easily construct a decorative sheet having a desired surface makeup regardless of the presence or absence of flexibility in a curved surface of a building, and to suppress the occurrence of cracks and increase adhesion. It is what.

  As a result of intensive studies to achieve the above object, the inventor of the present invention has made a decorative layer of a decorative sheet including a reinforcing layer and a decorative layer in which there is a gap through which an adhesive is allowed to pass in the construction of the decorative sheet on the curved surface of a building. Cut out the sheet, align the decorative sheet to the curved surface part and fold it using the adhesive, and find out how to apply the decorative sheet to press the decorative sheet so that the adhesive appears in the cut part. The invention has been completed.

That is, the construction method of the decorative sheet of the present invention has the following characteristics.
1. When finishing a curved surface part of a building using a decorative sheet including a decorative layer and a reinforcing layer, the decorative layer of the decorative sheet is cut and bonded to the base material of the curved surface part of the building so that the reinforcing layer is on the inside. It is a construction method of a decorative sheet for attaching a decorative sheet using a material,
There is a gap through which the reinforcing layer allows the adhesive to pass through, and the adhesive is applied to the surface of the base and / or the reinforcing layer of the decorative sheet so that the adhesive appears at the cut portion. A method for constructing a decorative sheet, wherein the cut portion is processed by pressing and sticking.
2. 1. The reinforcing layer is a fibrous sheet having a network structure in which fibers are arranged at intervals of 0.2 mm to 30 mm and / or a nonwoven fabric having a basis weight of 50 g / m ² or less. The construction method of the decorative sheet as described in 2.
3. 1. The adhesive material contains colored powder particles. Or 2. The construction method of the decorative sheet as described in 2.

  According to the present invention, it is possible to easily construct a decorative sheet having a desired surface makeup regardless of the presence or absence of flexibility in a curved surface portion of a building, and suppress the occurrence of cracks and have excellent adhesion. Surface makeup can be obtained.

  Hereinafter, the best mode for carrying out the present invention will be described.

When finishing a curved surface part of a building using a decorative sheet including a decorative layer and a reinforcing layer, the present invention cuts the decorative layer of the decorative sheet so that the reinforcing layer is on the inside. It is a construction method of a decorative sheet in which a decorative sheet is pasted using an adhesive on a base material,
There is a gap through which the reinforcing layer allows the adhesive to pass through, and the adhesive is applied to the surface of the base and / or the reinforcing layer of the decorative sheet so that the adhesive appears at the cut portion. Is pressed and pasted, and the cut portion is processed.

INDUSTRIAL APPLICABILITY According to the present invention, a decorative sheet having a desired surface makeup can be easily applied to a curved surface portion of the inner and outer wall surfaces of a building regardless of the presence or absence of flexibility. Moreover, in the construction method of this invention, generation | occurrence | production of the crack of a decorative sheet can be suppressed, it is excellent in adhesiveness, and the outstanding aesthetics can be maintained.
Furthermore, in the method of the present invention, since the adhesive is filled so as to be extruded from the back side to the front side of the decorative sheet, it is difficult to form a gap between the cut portion and the adhesive, and exhibits excellent adhesion and water resistance. , Cracks are less likely to occur.
Further, since the reinforcing layer is not cut and is a continuous reinforcing layer, it is possible to follow the fluctuation of the wall surface.

  The decorative sheet used in the method for applying the decorative sheet of the present invention is not particularly limited as long as it includes a decorative layer and a reinforcing layer.

  As the decorative layer, those mainly composed of a binder and colored powder particles can be used. In the present invention, the binder and the colored powder particles are not particularly limited, and a desired surface makeup can be obtained.

Examples of the binder include ethylene resin, vinyl acetate resin, polyester resin, alkyd resin, vinyl chloride resin, epoxy resin, acrylic resin, urethane resin, phenol resin, melamine resin amino resin, polycarbonate resin, acrylic silicon resin, and acrylic acetic acid. Water-soluble types such as vinyl resins, acrylic urethane resins, silicon resins, and fluororesins, water-dispersed types, and the like can be used, and one or more of these can be used. These may have cross-linking reactivity.
The glass transition temperature of such a resin is not particularly limited. For example, if it is -50-50 degreeC, Preferably it is -30-30 degreeC, it becomes possible to provide moderate flexibility to a decorative sheet. In addition, the glass transition temperature in this invention is a value calculated | required by the formula of Fox.

Examples of colored powder particles include titanium oxide, zinc oxide, carbon black, ferric oxide (bengal), lead chromate (molybdate orange), yellow lead, yellow iron oxide, ultramarine, cobalt green, etc. Colored pigments, azo, naphthol, pyrazolone, anthraquinone, perylene, quinacridone, disazo, isoindolinone, benzimidazole, phthalocyanine, quinophthalone, and other organic color pigments, pearl pigments, fluorescent pigments , Phosphorescent pigments, metallic pigments,
Silica sand, crushed stone, cold water stone, river sand, mountain sand, marble ground, granite ground, granite ground, serpentine ground, obsidian ground, limestone ground, fluorite ground, cold water ground, feldspar ground, feldspar ground , Ground silica, ground sand, ceramic ground, mica, ceramic ground, glass beads, ground glass, resin beads, porous resin beads, metal particles, silica gel, zeolite, alumina, allophane, diatomaceous earth, siliceous shale , Sepiolite, attabargite, montmorillonite, zonolite, imogolite, shell powder, Otani stone powder, activated clay, charcoal, activated carbon, wood powder, shell pieces, plant pieces, etc. or surface treatment with pigments, dyes, glazes, etc. In addition, heavy calcium carbonate, aluminum hydroxide, clay, kaolin, talc, precipitated barium sulfate, barium carbonate, white Bon, diatomaceous earth, and the like.

  Such a colored powder particle is a component that imparts decorativeness, and by using a combination of two or more kinds of colored powder particles having different hues, the versatility of the decorative sheet surface can be enhanced. The hue of the colored powder particles may be either an achromatic color or a chromatic color, and may have transparency as long as the effects of the present invention are not impaired.

The mixing ratio of the binder and the colored powder particles in the decorative sheet is 50 to 4000 parts by weight, more preferably 100 to 3000 parts by weight, and further 200 to 2000 parts by weight with respect to 100 parts by weight of the solid content of the binder. It is preferable that it is a weight part.
Normally, if the mixing ratio of colored powder particles is increased, the flexibility of the decorative sheet becomes poor, so that it is difficult to construct the curved surface of the building. However, according to the construction method of the present invention, the colored powder particles are Even if the mixing ratio is increased, construction on the curved surface of the building is simple. Therefore, the decorative sheet having a high mixing ratio of the colored powder particles and excellent in aesthetics can be easily applied to the curved surface portion of the building.

  In the decorative layer, if necessary, fibers, plasticizers, antibacterial agents, photocatalysts, adsorbents, fungicides, insecticides, flame retardants, crosslinking agents, lubricants, film-forming aids, water repellents, antioxidants, An ultraviolet absorber, an antiblocking agent, etc. may be contained.

The reinforcing layer is not particularly limited as long as there is a gap through which the adhesive can pass.
The reinforcing layer preferably has a flexibility that can be applied to bending at 30 ° or more, and further 60 ° or more. When such a reinforcing layer is used, the decorative sheet can be easily processed, and the construction can be easily performed.

For example, as the reinforcing layer, a fibrous sheet having a network structure in which fibers are arranged at intervals of 0.2 mm to 30 mm (preferably 0.5 mm to 20 mm), and / or a basis weight is 50 g / m ² or less (preferably It is preferable to use a nonwoven fabric that is 30 g / m ² or less.
By using such a reinforcing layer, the adhesive material can efficiently appear in the cut portion through the gap of the reinforcing layer, and the cut portion can be filled with the adhesive material, and has excellent adhesion and water resistance, and is cracked. Etc. can be suppressed.
When the mesh interval of the fibrous sheet is smaller than 0.2 mm, and when the basis weight of the nonwoven fabric is larger than 50 g / m ² , the adhesive cannot efficiently pass through the reinforcing layer. When the mesh interval is larger than 30 mm, the reinforcing effect may be inferior.

  Moreover, it is preferable that the thickness of a fiber is about 0.01 mm-1.5 mm. The fiber thickness referred to here is the thickness of one strand forming a network structure, and is the thickness of a thread-like bundle composed of one or two or more fibers.

Examples of the fibers include inorganic fibers, organic fibers, and the like, or composites of inorganic fibers and organic fibers.
Examples of the inorganic fiber include rock wool, glass fiber, silica fiber, silica-alumina fiber, carbon fiber, silicon carbide fiber, and fine metal wires such as iron and copper.
Examples of the organic fiber include pulp fiber, polyester fiber, polyethylene fiber, polypropylene fiber, aramid fiber, vinylon fiber, polyarylate fiber, PBO fiber, nylon fiber, acrylic fiber, vinyl chloride fiber, and cellulose fiber.

The decorative sheet of the present invention is not particularly limited as long as the decorative layer and the reinforcing layer are laminated, and can be manufactured by a known method.
For example, (1) a method of applying and laminating the above-mentioned makeup layer forming component mixture on the reinforcing layer and curing, (2) pouring the makeup layer forming component mixture onto the mold, and further (3) A method of laminating a decorative layer obtained by molding a decorative layer forming component mixture using a heating kneader, a rolling roll, and the like, and a reinforcing layer. It is done.

In the method (1), the above-mentioned makeup layer forming component mixture is applied to the reinforcing layer using a coating device such as a spray, a trowel, a brush, a roller, or the like, and is applied and laminated by a flow coater method. Can be obtained.
In the method (2), since the mold side becomes the surface of the decorative layer, a desired uneven pattern can be imparted to the surface of the decorative layer by adjusting the shape inside the mold. When using such a formwork to provide a concavo-convex pattern on the surface of the decorative sheet, the level difference is about 0.2 to 30 mm (preferably about 0.5 to 20 mm). It is preferable. Moreover, it is preferable that the space | interval is about 0.2-30 mm (preferably about 0.5-20 mm).
In the method (2), a method using means such as a spray, a trowel, a reciprocator, or a coater may be employed instead of pouring.
Examples of the mold frame include those made of silicon rubber, polyurethane resin, epoxy resin, polyester resin, or the like. Furthermore, release paper may be provided on the surface of the mold.
In the method of (3), a decorative layer can be laminated after obtaining a decorative layer by a method of obtaining a decorative layer with a mixture of a decorative layer forming component by a heating kneader, a rolling roll or the like. A decorative sheet can also be obtained by simultaneously processing the mixture and the reinforcing layer with a heating kneader, a rolling roll or the like.

  Among the decorative sheets, the thickness of the decorative layer is usually about 0.2 to 30 mm (preferably about 0.5 to 20 mm). The thickness of the reinforcing layer is usually about 0.1 to 5 mm (preferably about 0.5 to 3 mm).

The decorative sheet used in the present invention can be handled as a sheet form at the time of distribution, and can be applied to each part of the interior / exterior surface of the building.
The construction method of the decorative sheet of the present invention can be applied to the surface finishing of the curved portion of the inner and outer wall surfaces of the building, and can be suitably applied particularly to the interior finishing of the building.
In addition, the building curved surface part as used in the field of this invention is a curved surface more than radius 1cm (R1cm). The present invention is particularly effective for a curved portion having a radius of 5 cm (R5 cm) to 100 cm (R100 cm). Of course, it is also effective for a gently curved portion having a radius exceeding 100 cm (R100 cm).
Specifically, the present invention can be applied to curved portions such as bay windows, balconies, entrances, wall surfaces, and round pillars in houses, condominiums, schools, hospitals, stores, offices, factories, warehouses, and canteens. Examples of the base material constituting such a part include gypsum board, plywood, concrete, mortar, tile, fiber-mixed cement board, cement calcium silicate board, and slag cement pearlite board. These base materials may be those having an existing coating film on the surface thereof, or those having already been pasted with wallpaper.
Especially in this invention, since the outstanding followable | trackability is shown with respect to the curved surface site | part formed by abutting a base material, it can use suitably.

In the decorative sheet construction method of the present invention, first, the decorative layer of the decorative sheet described above is cut in a direction perpendicular to the curved surface portion. What is necessary is just to set a cut location suitably according to the grade of a curved surface, and can make a cut in one place or two places or more.
The instrument used for cutting is not particularly limited, but a knife, a cutter, or the like may be used. The degree of cutting is not particularly limited as long as the decorative sheet can be folded at the cutting portion. In addition, assuming that the cut reaches the reinforcing layer, the reinforcing layer preferably contains inorganic fibers having excellent strength.
Next, it bends according to a curved surface part so that a reinforcement layer may become an inner side. At this time, since the cut is formed in the decorative layer, the decorative sheet can be easily folded by simply matching the decorative sheet to the curved surface portion.
Next, a decorative sheet is attached using an adhesive. At this time, an adhesive is applied to the substrate surface and / or the reinforcing layer surface of the decorative sheet, and the decorative sheet is pressed and pasted so that the adhesive appears at the cut portion. For example, by pressing in order from the part far from the cut part of the decorative sheet to the close part, the adhesive material gradually moves to the cut part, and the adhesive material appears in the cut part, and as a result, the adhesive material fills the cut part. Can do. The pressing may be performed manually or an instrument such as a roller may be used.
The amount of adhesive applied is not particularly limited as long as the effect of the present invention is not impaired, but is usually about 0.4 to 2.0 kg / m ² , and further about 0.5 to 1.5 kg / m ^2. It is preferable that
The viscosity of the adhesive is not particularly limited as long as it does not impair the effects of the present invention, but it is usually preferably about 30 to 200 Pa · s, more preferably about 60 to 140 Pa · s.

It does not specifically limit as an adhesive material, What is necessary is just to use a well-known thing.
For example, the synthetic resin used for the adhesive is not particularly limited, but ethylene resin, vinyl acetate resin, polyester resin, alkyd resin, vinyl chloride resin, epoxy resin, acrylic resin, urethane resin, phenol resin, melamine resin, amino resin , Polycarbonate resin, acrylic silicon resin, acrylic vinyl acetate resin, acrylic urethane resin, silicone resin, water-soluble type such as fluororesin, water dispersion type, etc., and one or more of these may be used. it can.
If necessary, the above-mentioned colored powder particles can be used, and fibers, plasticizers, antibacterial agents, photocatalysts, adsorbents, fungicides, insecticides, flame retardants, crosslinking agents, lubricants, film-forming aids. Agents, water repellents, antioxidants, ultraviolet absorbers, antiblocking agents and the like can also be used.

As the adhesive used in the present invention, it is particularly preferable to use a colored adhesive containing colored powder particles. By being colored with colored powder particles, the cut portion can be concealed, and furthermore, the hue of the cut portion can be set by appropriately selecting the colored powder particles.
For example, when it is desired to make the cut portion inconspicuous, the colored powder particles may be appropriately selected so that the hues of the adhesive and the decorative layer are the same color or approximate colors. By setting the hue of the adhesive layer and the decorative layer to the same color or approximate colors, the difference in hue between the decorative layer and the cut portion (adhesive material) is inconspicuous, and the calm aesthetics can be maintained. In addition, when it is desired to construct the cut portion conspicuously, the colored powder particles may be appropriately selected so that the hues of the adhesive and the decorative layer are completely different.

  The cut portion thus obtained can be finished by subjecting the adhesive to a surface treatment with a spatula, a trowel, a brush or the like. Further, not only the cut portion but also the peripheral portion of the cut portion or the entire wall surface can be surface-treated as necessary.

Furthermore, if necessary, it can be finished by surface treatment with a surface finish or the like.
The surface finish is not particularly limited, but is the same or similar to the above-mentioned makeup layer forming component, or a water repellent surface finish containing a known water repellent, a photocatalyst containing surface finish containing a photocatalyst. Materials, antibacterial surface finishes, antifungal surface finishes, antifouling surface finishes, and the like may be appropriately selected according to the application.
Further, the surface finish can be applied not only to the cut portion but also to the peripheral portion of the cut portion or the entire wall surface.

  Examples are given below to clarify the features of the present invention.

Example 1
On the inner surface of a mold (length 300 mm × width 300 mm × depth 5 mm) coated with a release agent,
70 parts by weight of colored powder A, 30 parts by weight of colored powder B, 10 parts by weight of binding material A (solid content), 2 parts by weight of a film-forming aid, and 25 parts by weight of water are uniformly stirred and mixed, and then diluted with water The slurry prepared to 12 Pa · s was poured and smoothed using a trowel.
Furthermore, a reinforcing layer (glass fiber sheet (glass fiber; thickness: 0, 18 mm, mesh interval: 10 mm × 10 mm)) is laminated thereon,
After drying for 24 hours at a temperature of 23 ° C. and a relative humidity of 50%, the mold was removed to obtain a decorative sheet (length 300 mm × width 300 mm × thickness 3 mm).
Cut the resulting decorative sheet at a 5 cm interval in the vertical direction with a cutter knife (depth 1 mm),
Folding the cut portion of the decorative sheet to a cylindrical tube with a radius of 50 cm (R50 cm) and a height of 1 m (FIG. 1)
Using 0.8 kg / m ² of adhesive A (binding material A 10 parts by weight (solid content), colored powder C 60 parts by weight, colored powder D 0.03 parts by weight, film-forming aid 2 parts by weight) A decorative sheet was attached. At this time, the decorative sheet was pressed in order from the far part to the close part of the cut portion of the decorative sheet, and pasted so that the cut portion was filled with the adhesive.
The adhesive filled in the cut portion was smoothed with a trowel, and the surface was finished to prepare a test specimen (FIG. 2).
In the method of Example 1, the construction of the curved surface portion was simple, the cut portion was not conspicuous, and excellent aesthetics were shown.

Binder A: Acrylic resin emulsion (glass transition temperature 15 ° C., solid content 50% by weight)
-Colored granular material A: quartz sand (average particle size 120 μm)
-Colored granular material B: colored silica sand (light yellow, average particle size 120 μm)
-Colored granular material C: Heavy calcium carbonate (white, average particle size 50 μm)
-Colored granular material D: Iron oxide pigment (light yellow, average particle size 140 nm)
Film-forming auxiliary A: 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate

(Adhesion test)
The obtained specimen was allowed to stand at a temperature of 23 ° C. and a relative humidity of 50% for 24 hours, and then a peeling test was performed to peel off the cut portion and the curved surface with a nail. As a result, the cut portion and the curved surface did not show any abnormality and had excellent adhesion.

(Example 2)
Except for using a composite fiber sheet of glass fiber and polyester fiber (glass fiber; thickness: 0, 18 mm, mesh interval: 10 mm × 10 mm, polyester fiber nonwoven fabric; basis weight: 21 g / m ² ) as the reinforcing layer. A decorative sheet and a test specimen were produced in the same manner as in Example 1.
In the method of Example 2, the construction of the curved surface portion was simple, the cut portion was not conspicuous, and excellent aesthetics were shown.
Furthermore, as a result of conducting an adhesion test similar to that in Example 1, no abnormality was found and the adhesion was excellent.

(Comparative Example 1)
A decorative sheet was produced in the same manner as in Example 1 except that pattern paper (thickness 0.1 mm) was used as the reinforcing layer.
Cut the resulting decorative sheet at a 5 cm interval in the vertical direction with a cutter knife (depth 1 mm),
Fold the cut-out part of the decorative sheet into a cylindrical tube with a radius of 50 cm (R50 cm) and a height of 1 m,
A decorative sheet was bonded using an adhesive A of 0.9 kg / m ² .
Next, the filler A (70 parts by weight of colored powder A, 30 parts by weight of colored powder B, 10 parts by weight (solid content), 2 parts by weight of a film-forming aid, 25 parts by weight of water) And smoothed with a trowel to finish the surface.
In the method of Comparative Example 1, since the adhesive material is not filled in the cut portion when the decorative sheet is bonded, it is necessary to separately fill the cut portion with the filler, which is not a simple method.
Furthermore, as a result of performing an adhesion test similar to that in Example 1, a cut portion and a part of the curved surface were peeled off.

It is an image figure of a decorative sheet construction process. It is an image figure of a decorative sheet construction process.

Explanation of symbols

1: decorative sheet 2: decorative layer 3: reinforcing layer 4: cylindrical tube 5: adhesive

Claims (3)

When finishing a curved surface part of a building using a decorative sheet including a decorative layer and a reinforcing layer, the decorative layer of the decorative sheet is cut and bonded to the base material of the curved surface part of the building so that the reinforcing layer is on the inside. It is a construction method of a decorative sheet for attaching a decorative sheet using a material,
There is a gap through which the reinforcing layer allows the adhesive to pass through, and the adhesive is applied to the surface of the base and / or the reinforcing layer of the decorative sheet so that the adhesive appears at the cut portion. A method for constructing a decorative sheet, wherein the cut portion is processed by pressing and sticking. The reinforcing layer is a fibrous sheet having a network structure in which fibers are arranged at intervals of 0.2 mm to 30 mm, and / or a nonwoven fabric having a basis weight of 50 g / m ² or less. The construction method of the decorative sheet as described in 2. The method for constructing a decorative sheet according to claim 1 or 2, wherein the adhesive contains colored powder granules.