JP3785315B2 - Architectural interior materials and manufacturing method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an architectural interior material, and more specifically, to an interior material such as wallpaper used for finishing an indoor wall surface of a house.
[0002]
[Prior art]
As an interior material for construction, there is a material that uses the humidity control, deodorization and other functions of charcoal.
Paper and cloth coated with a slurry-like coating agent containing charcoal powder, sheets and cloth obtained using synthetic resin blended with charcoal powder, fibers and fibers, interior materials such as wallpaper It is said that the environmental improvement of construction space can be aimed at by the humidity control function and deodorizing function which charcoal has.
[0003]
[Problems to be solved by the invention]
Since charcoal or charcoal powder is black, it is not preferable to use it as it is for wallpaper exposed in an indoor space in terms of appearance design.
It has been proposed to laminate a decorative layer in which a coloring or printing pattern suitable for the interior wall surface is formed on the surface of a layer carrying charcoal. However, by laminating the decorative layer, the air permeability between the functional layer and the indoor space is hindered, and the function of the functional layer cannot be exhibited sufficiently.
In addition, paper and cloth carrying charcoal have a problem that it is difficult to perform bonding to a wall surface compared to normal wallpaper.
[0004]
For ordinary wallpaper, an adhesive is applied to the back side of the wallpaper at the time of construction, and then the surface to which the adhesive is applied is attached to the wall surface. The time from when the adhesive is applied to the wallpaper until the wallpaper develops adhesive force is sometimes referred to as open time. During this open time, it is necessary to finish the wallpaper pasting work.
However, charcoal is extremely water-absorbing or hygroscopic, so when a water-soluble adhesive is applied, the water contained in the adhesive is rapidly absorbed by the charcoal, shifting the position of the wallpaper on the wall or wrinkling. I don't have enough time to do the work of stretching. The aforementioned open time becomes extremely short. Therefore, construction work becomes difficult and the problem that it is difficult to handle arises.
[0005]
As another structure of wallpaper, it is also known that a remoisturizing adhesive is applied to the back of wallpaper made of paper carrying charcoal, and wetted with water at the time of construction and attached to the wall surface. Also in this case, water wet during construction is absorbed by the charcoal and the open time is shortened.
The above problems occur not only in wallpaper but also when trying to use various functions of charcoal in various building interior materials such as paper and interior cloth.
The subject of this invention is making it possible to fully exhibit the function which charcoal has as a building interior material using charcoal, which can fully secure an open time and is easy to construct.
[0006]
[Means for Solving the Problems]
A manufacturing method of an interior material for building according to the present invention is an interior material constructed on an interior surface of a building, and includes a functional layer made of a fiber material carrying charcoal, and an adhesive on the surface of the functional layer. Laminated interior material having a breathability and a back layer laminated on the back surface of the functional layer via an adhesive and having a breathability and suppressing moisture transfer from the outer surface to the functional layer. In the method of manufacturing a step (a) of applying an adhesive to the back layer and then laminating the functional layer, and after applying an adhesive to the decorative layer, a laminate of the functional layer and the back layer Step (b) of laminating a decorative layer on the surface of the functional layer .
[Interior material]
It is applied to various interior materials that are constructed on interior surfaces such as wall surfaces, ceiling surfaces, and floor surfaces of buildings. Examples include wallpaper and interior cloth. Moreover, the interior material which comprises a part of furniture, fittings, equipment, etc. like a paperboard, or covers the surface is also included.
[0007]
[Functional layer]
Charcoal is supported on a sheet-like material made of a fiber material such as paper, woven fabric, and non-woven fabric. By carrying charcoal, it usually exhibits black or dark gray.
As long as the intended function of charcoal can be sufficiently exerted, the material and structure of the fiber material supporting charcoal, the charcoal supporting method, and the like are not limited.
Usually, charcoal is made into fine powder and then supported on the fiber material. After manufacturing a sheet with fiber material, charcoal may be supported on the fiber material sheet, charcoal may be supported simultaneously with the manufacture of the sheet, or charcoal is previously supported on the fiber material before manufacturing the sheet. You can also let them. More specifically, charcoal can be blended in a synthetic resin or the like that is a material of the fiber or yarn when the fiber or yarn constituting the sheet is spun or spun. Charcoal powder can be dispersed in a slurry raw material for making paper or nonwoven fabric. A sheet of fiber material can be produced, and a coating agent in which charcoal is blended can be applied to the surface.
[0008]
As the charcoal, it is preferable to employ raw materials and firing conditions excellent in the intended function. Specific functions include deodorization, deodorization, humidity control, etc. by adsorption / desorption function, environmental ion adjustment function, heat insulation function, far infrared radiation function, static electricity suppression function, non-discharge or discharge function, etc. .
Activated charcoal can be used as charcoal.
[Activated charcoal]
It is a material in which various functions of charcoal are improved by carbonizing and activating wood chips. By appropriately setting the raw material, carbonization conditions, activation treatment conditions, etc., it becomes a highly functional charcoal.
[0009]
As the activated charcoal, the technology described in Japanese Patent Application No. 11-26719, which has been partially filed by the present applicant and applied for a patent, can be applied.
Specifically, coniferous wood such as red pine is used as a raw material for charcoal, and is used in the form of wood chips having a maximum diameter of about 10 to 60 mm obtained by finely chopping wood. Subsequent to the low-temperature carbonization step in which such wood chips are heat-treated at 450 to 550 ° C. to carbonize, and the low-temperature carbonization step, the wood chips carbide is heat-treated at 800 to 900 ° C. for 480 to 960 seconds to further carbonize. A high temperature carbonization step and an activation step of bringing the carbide into contact with water at the end of the high temperature carbonization step are performed.
[0010]
The activated charcoal obtained by the above method has a porous structure having a large number of fine pores therein, and exhibits high adsorption performance by physical and chemical action. In particular, when the low-temperature carbonized portion and the high-temperature carbonized portion coexist, the excellent functions of the two are exhibited synergistically and have a practically high function.
Activated charcoal is used in fine powder form. As the pulverizing means, a normal pulverizing apparatus and pulverizing conditions for charcoal or the like can be applied. An average particle diameter of 5-100 micrometers is preferable.
The activated charcoal preferably has the following functions.
[0011]
High adsorption capacity. Moisture absorption and deodorization, removal of harmful volatile components such as formaldehyde and ammonia. Function to decompose and detoxify adsorbed harmful substances. Antifungal properties, far-infrared radiation, conductivity, electromagnetic wave absorption, ion adjustment function.
The blending amount of the activated charcoal is 3 to 50% by weight with respect to the total amount of raw materials constituting the functional layer. If it is set to 3 to 20% by weight, the inhibition of bonding between fibers by charcoal is reduced, which is preferable from the viewpoint of the practical strength of the sheet material.
The functional layer may be blended with a natural or synthetic material other than charcoal, and a substance having an environment improving function similar to that of charcoal.
[0012]
A functional layer can also be comprised with the laminated body of a several material layer.
[Makeup layer]
Cover the surface of black or a functional layer close to black to improve the appearance and characteristics of the surface of the interior material.
As the material for the decorative layer, the same decorative materials as those for ordinary wallpaper and other interior materials can be used. Specifically, paper, knitted fabric or non-woven fabric can be used. However, as the decorative layer, a layer having air permeability is used so as not to impair the humidity control function and deodorizing function of the functional layer with respect to the construction space. In addition, the decorative layer material itself may have a function similar to that of the functional layer, such as humidity control and deodorization, to some extent.
[0013]
As a specific example of paper, Japanese paper made from cocoon, mitsumata, etc. can be used. Paper made from plant fibers such as kenaf and hemp or wood pulp can also be used. Unnecessary items such as bagasse and recycled paper made from used paper such as newspapers can also be used.
Specific examples of woven fabrics include those using plant fibers such as cotton and hemp, animal fibers such as silk and hair, and other natural fibers, and those using regenerated fibers such as rayon and cupra.
As a specific example of the non-woven fabric, a non-woven fabric manufactured using a wet bond or a dry bond manufacturing method using natural fiber or recycled fiber can be used.
[0014]
The decorative layer can also be composed of a laminate of a plurality of material layers.
The decorative layer is laminated on the functional layer via an adhesive.
[Back layer]
A surface for attaching the interior material to the construction surface is formed. What has the material and structure suitable for the affixing construction of interior material is preferable.
The back layer is made of a material having air permeability so as not to impede air flow between the construction wall surface and the functional layer. Moreover, what has the characteristic which prevents that the open time of the adhesive agent used for affixing becomes short by presence of a functional layer is used in the case of the affixing construction of interior material. Specifically, a material that suppresses moisture transfer from the outer surface to the functional layer is used as the back surface layer. A material having low water absorption or water permeability, or a material having a property of slow passage of moisture is preferable. Paper can be used as a specific example of the back layer. The functions described above can be exhibited by adjusting the material and thickness of the paper.
[0015]
The back layer can also be composed of a laminate of a plurality of material layers.
By using a relatively thick material for the back surface layer, it is possible to hide the concavity and convexity of the construction wall surface so that it is not noticeable on the surface side of the interior material. The basis weight of the back layer can be set in the range of 20 to 40 g / m ² .
[Manufacture of interior materials for buildings]
The decorative layer, the functional layer, and the back layer are laminated together with an adhesive.
For the type of adhesive and the bonding method, a technique basically common to ordinary laminated interior materials and other laminated products is applied.
[0016]
It is preferable to use an air-permeable adhesive so as not to impair air permeability between the decorative layer and the functional layer and between the functional layer and the back layer.
When the adhesive soaks into the functional layer, the characteristics of the functional layer are hindered. Therefore, an adhesive with little soaking is preferable. The adhesive interposed between the functional layer and the back layer is preferably one that can suppress the moisture transfer from the back layer to the functional layer and extend the open time when the interior material is applied.
Materials that do not adversely affect the construction environment and are easy to dispose of such as incineration and burial are preferred. For example, a non-formalin type adhesive is preferable.
[0017]
As a specific example of the adhesive, a non-formal acrylic emulsion adhesive or a modified vinyl acetate adhesive having a production standard viscosity of 5000 cps (20 ° C.) or more can be used. An adhesive having such a viscosity condition has little functional inhibition of the functional layer described above, and is also effective in suppressing moisture migration from the back surface layer to the functional layer.
The adhesive can be used in an amount of 35-40 g / m ² . By adopting such a coating amount, it is possible to configure an adhesive layer that can satisfactorily exhibit the above-described function with an appropriate thickness.
A roll coater method can be used for laminating the decorative layer, the functional layer, and the back layer using an adhesive. When using the roll coater method, in the first stage, the adhesive is applied to the back layer and laminated with the functional layer, and in the second stage, the adhesive is applied to the decorative layer and the back layer and the functional layer are laminated. A method of stacking on the body can be adopted. In this method, since it is not necessary to apply the adhesive directly to the functional layer, it is possible to prevent the problem that the moisture of the adhesive is absorbed by the functional layer and the open time is shortened. In addition, the adhesive hardly affects the functional layer.
[0018]
By using a hot melt adhesive as the adhesive, the adverse effect of the adhesive on the functional layer can be reduced. Specifically, a hot-melt adhesive is applied to a material on the side that does not include the functional layer, for example, a decorative layer in a heated and melted state, and is cooled and cured. After that, the decorative layer and the functional layer are laminated and heated to be bonded. A similar method can be applied to the adhesion between the back layer and the functional layer. In this case, a hot melt adhesive is applied to the back layer.
The interior material can be subjected to various types of processing employed in ordinary architectural interior materials such as fireproofing and antifouling. A coating treatment with a non-formalin / phosphorus chemical can be adopted as a flameproofing process.
[0019]
[Construction of interior materials]
The architectural interior material is used by being attached to the interior surface of a building using an adhesive on the surface of the back surface layer.
The same technique as in the case of a normal interior material can be applied to the adhesive and the method for attaching the interior material to the interior surface of the building.
Since the interior material of the present invention is less likely to shorten the open type due to the suction of the adhesive, the width of the usable adhesive is widened, and the construction work can be performed with a margin.
The adhesive used for attaching the interior material can be applied to the interior material or the wall surface at the stage of the attaching operation. Even when a water-soluble or water-dispersible adhesive is used as this adhesive, it is less likely to be sucked into the wallpaper and sufficient open time can be taken.
[0020]
A pressure-sensitive adhesive layer and a release sheet are laminated in advance on the back surface layer of the interior material, and the release sheet is peeled off at the time of construction, and can be attached to the wall surface by the adhesive force of the pressure-sensitive adhesive layer. A rehumidified adhesive layer can be laminated on the back surface layer of the interior material, and when the interior material is applied, the rehumidified adhesive layer can be wetted with water to develop an adhesive force.
[Adhesive for pasting]
As the adhesive used for attaching the interior material, the same adhesive as that used in ordinary wallpaper construction can be used. In general, water-soluble or emulsion-type adhesion with good workability is used.
[0021]
It is preferable to select the type and the material of the adhesive so that a sufficient workable time, that is, an open time, from application of the adhesive to the back surface layer of the interior material to application to the wall surface or the like can be obtained. However, the open time is not determined only by the characteristics of the adhesive, but is also affected by the characteristics of the back layer and the functional layer. Therefore, the adhesive may be selected in consideration of these conditions.
(Adhesive layer)
The pressure-sensitive adhesive used in ordinary wallpaper can be used.
As the pressure-sensitive adhesive, an adhesive having a relatively low initial adhesive force when the release sheet is peeled and a sufficient adhesive force thereafter is preferable. This facilitates positioning, wrinkle stretching work, and the like during the work of attaching the interior material to the wall surface of the building.
[0022]
When an adhesive is used, water is not used at the time of affixing to the wall surface, so that the open time does not decrease due to the suction of water. However, when the adhesive is applied to the interior material to form the adhesive layer, if the adhesive is applied directly to the functional layer, the moisture contained in the adhesive is absorbed into the functional layer, and the adhesive layer It becomes difficult to perform the forming operation or the moisture adversely affects the functional layer. In the present invention, since the pressure-sensitive adhesive is applied not to the functional layer but to the back layer, the above-described problems are unlikely to occur.
The release sheet is effective in preventing an accident that the interior material adheres to another object during handling such as transportation and storage. The release sheet is affixed to the surface of the pressure-sensitive adhesive layer with a weak force that does not easily fall off, and can be easily peeled off when the interior material is used. A release sheet used for ordinary wallpaper is used.
[0023]
(Rewetting adhesive layer)
The rewet adhesive is an adhesive that does not exhibit an adhesive force when it is first applied and dried, but develops an adhesive force when water is supplied. It is possible to use a rewet adhesive that is used for ordinary wallpaper.
As the rehumidifying adhesive, an initial adhesive strength when wetted with water is relatively weak and a sufficient adhesive strength after that is preferable. This facilitates positioning, wrinkle stretching work, and the like during the work of attaching the interior material to the wall surface of the building.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
The architectural interior material S shown in FIG. 1 includes a functional layer 10, a decorative layer 20, and a back layer 30.
The functional layer 10 is made of a sheet material (trade name Chaco sheet: manufactured by Hinomaru Carbo Techno Co., Ltd.) obtained by impregnating activated charcoal powder into a nonwoven fabric and supporting it. The decorative layer 20 is made of Japanese paper for wallpaper and has air permeability. The back layer 30 is also made of a paper material and has air permeability.
The functional layer 10 and the decorative layer 20, and the functional layer 10 and the back surface layer 30 are laminated and integrated with each other via adhesive layers 42 and 44 in the middle thereof. For the adhesive layers 42 and 44, an acrylic emulsion adhesive or a modified vinyl acetate emulsion adhesive is used.
[0025]
A pressure-sensitive adhesive layer 50 is applied to the back surface of the back surface layer 30, and a release sheet 52 is disposed on the surface of the pressure-sensitive adhesive layer 50. During the handling of the interior material S, the release sheet 52 protects the pressure-sensitive adhesive layer 50 from sticking to other objects and preventing the adhesiveness from deteriorating. The release sheet 52 is peeled off when the interior material S is applied.
[Manufacture of interior materials]
FIG. 2 shows a method for manufacturing the interior material S having the above-described structure by adopting a roll coater method.
As shown in FIG. 2A, the back layer 30 is pulled out from the roll 32 on which the long back layer 30 is wound and held, and the functional layer is pulled out from the roll 12 on which the long functional layer 10 is wound and held. 10 is pulled out, and both 30 and 10 are overlapped and run. The surface of the back layer 30 that is to be overlaid with the functional layer 10 is coated with the functional layer 10 after the adhesive 44 is applied using the coating roll 60. The back layer 30 and the functional layer 10 are laminated with an adhesive 44 interposed therebetween and taken up by the take-up roll R.
[0026]
Next, as shown in FIG. 2 (b), the laminated body 10 + 30 is pulled out from the winding roll R composed of the laminated body of the back layer 30 and the functional layer 10, and the long decorative layer 20 is wound and held separately. The decorative layer 20 is pulled out from the roll 22 and the two 10 + 30 and 20 are overlapped and run. The surface of the decorative layer 20 that is overlapped with the functional layer 10 is coated with the functional layer 10 after the adhesive 42 is applied using the coating roll 60. The decorative layer 20, the functional layer 10, and the back surface layer 30 are laminated via an adhesive 44 therebetween, and the laminated interior material S is taken up by a take-up roll.
When the pressure-sensitive adhesive layer 50 and the release sheet 52 are laminated on the surface of the back surface layer 30, a coating process for the pressure-sensitive adhesive layer 50 and a process for attaching the release sheet 52 can be further added.
[0027]
【The invention's effect】
The interior material for building according to the present invention is made of a fiber material supporting charcoal, and a breathable decorative layer is laminated on the surface of the functional layer that exhibits various functions of charcoal such as a humidity control function and a deodorizing function. Thus, the appearance can be improved without impairing the function of the functional layer. The back layer suppresses the transfer of moisture from the outer surface to the functional layer, and the moisture contained in the adhesive applied during construction of the interior material is absorbed by the functional layer, resulting in a short open time. Can be improved. As a result, it is possible to provide an interior material that can be easily attached to a wall surface. When the back surface layer has air permeability, functions such as humidity control and deodorization that the functional layer has can be made to function on the inner wall surface structure via the back surface layer.
[0028]
In the method for manufacturing an interior material for building according to the present invention, the back layer and the decorative layer can be laminated and integrated without impairing various functions of the functional layer. In particular, it is possible to prevent a functional layer with extremely high water absorption from hindering the work of bonding the decorative layer and the back layer, or hindering the work of attaching the interior material to the wall surface.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of the present invention. FIG. 2 is a schematic process diagram showing a manufacturing process.
DESCRIPTION OF SYMBOLS 10 Functional layer 20 Cosmetic layer 30 Back surface layers 42 and 44 Adhesive layer 50 Adhesive layer 52 Release sheet S Interior material for construction

Claims (2)

An interior material to be constructed on the interior surface of a building, a functional layer made of a fiber material carrying charcoal, a decorative layer having air permeability laminated on the surface of the functional layer via an adhesive, and the function In the method for producing an interior material for building comprising a back layer laminated on the back surface of the layer through an adhesive and having air permeability and suppressing moisture transfer from the outer surface to the functional layer,
The functional layer, the back layer, and the decorative layer are prepared using a non-formalin acrylic emulsion adhesive or a modified vinyl acetate adhesive having a production standard viscosity of 5000 cps (20 ° C.) or more in an amount of 35 to 40 g / m ^2. It is a method of bonding by roll coater method,
Step (a) of laminating with a functional layer after applying an adhesive to the back layer;
(B) a step of laminating a decorative layer on the surface of the functional layer of the laminate of the functional layer and the back layer after applying an adhesive to the decorative layer;
A method for manufacturing an interior material for a building including: An interior material to be constructed on the interior surface of a building, a functional layer made of a fiber material carrying charcoal, a decorative layer having air permeability laminated on the surface of the functional layer via an adhesive, and the function In the method for producing an interior material for building comprising a back layer laminated on the back surface of the layer through an adhesive and having air permeability and suppressing moisture transfer from the outer surface to the functional layer ,
It is a method of bonding the functional layer, the back layer and the decorative layer with a hot melt adhesive,
Before SL After the was coated adhesive cures on the back layer, Ru was thermally bonded by laminating a functional layer step and (a),
After the was coated an adhesive cured prior Symbol decorative layer, and step (b) to the laminating decorative layer on the surface of the functional layer of the laminate of the functional layer and the back layer heat bonded,
A method for manufacturing an interior material for a building including :

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