JP2009019491A - Interior composite sheet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interior composite sheet which has both of a thermal insulation function and a moisture absorbing and releasing function, enables easy execution, enables execution of an existing underlayer as it is, and is suitably used especially as an underlayer sheet for an interior finishing material. <P>SOLUTION: Water-absorbing nonwoven fabric or paper is laminated on both surfaces or one surface of foamed resin sheet, and the composite sheet is stuck to an underlayer with an adhesive so that a layer of the water-absorbing nonwoven fabric or paper is always disposed outside. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an interior composite sheet for energy-saving heat insulation and prevention of dew condensation in a building, and the interior composite sheet is suitably used as a base sheet for an interior finish material attached between a housing and an interior finish material.

In recent years, especially in urban residential spaces, air conditioning has become essential, and energy savings have been required as a measure to prevent global warming. For this purpose, the energy saving technology of the building itself is attracting attention in the construction field.
Traditionally in Japan, heat insulation of buildings has been mainly based on an internal insulation method in which insulation is attached to or filled inside the building. However, construction from the inside of the structure is complicated and often leads to a decrease in efficiency. Therefore, recently, an outer heat insulating method for attaching a heat insulating material effective for heat insulation and prevention of condensation in a wooden house to the outside of the structure has been performed (Patent Documents 1 and 2).

When a conventional resin foam-based heat insulating material or fiber-based heat insulating material is attached to the inside of the RC structure, the thickness required for finishing the attachment to increase the heat insulating effect is at least about 50 mm. In particular, in existing buildings, when conventional insulation is used to improve heat insulation performance and prevent condensation on the walls, etc., the existing base materials such as wall boards are removed and newly insulated. If the material is not attached, the wall finish will not fit within the existing frame or parting material. Therefore, it becomes uneconomical in terms of construction period and construction cost, and the removed material becomes industrial waste. Therefore, problems such as new energy consumption and environmental pollution may occur at the time of disposal.
Further, the resin foam heat insulating material has heat insulating performance but does not have moisture absorption / release performance effective for preventing condensation. In the fiber-based heat insulating material, there is a drawback that the heat insulating performance is deteriorated due to moisture absorption, and the mounting method is complicated and the finished size is increased.
As described above, there is no method that can utilize the existing base as it is, has a small size necessary for finishing, and efficiently performs heat insulation and condensation prevention simultaneously.

Japanese Patent No. 3813609 Japanese Patent No. 3787144

  The present invention is a composite sheet for interiors that has both functions of heat insulation and moisture absorption and desorption, can be easily constructed, and can be constructed by using existing bases as they are, especially interior finishes An object is to provide a base sheet of material.

The present invention is characterized in that a water-absorbing nonwoven fabric or paper is laminated on both sides or one side of a foamed resin sheet, and the interior is characterized in that the water-absorbing nonwoven fabric or paper layer is always attached to the base with a paste so as to be outside. Providing composite sheets.
In the composite sheet for interior use, when the water-absorbing nonwoven fabric or paper is laminated on both sides of the foamed resin sheet, any surface may be attached to the base side, but the water-absorbing nonwoven fabric or only on one side of the foamed resin sheet When the paper is laminated, the water-absorbing non-woven fabric or paper layer must be on the outside, and the foamed resin sheet on which the water-absorbing non-woven fabric or paper is not laminated is always attached to the base side.

  The base sheet of the interior finish material, which is a preferred embodiment of the composite sheet for interior use of the present invention, will be described in detail below, but the description is not limited to the case where it is used as the base sheet of the interior finish material. The same applies to the case where the composite sheet is used in other applications or usage modes.

The present invention is an interior finishing material base sheet that is attached between a casing and an interior finishing material, wherein a water-absorbing nonwoven fabric or paper is laminated on both sides of the foamed resin sheet, and is attached to the casing with a paste. A base sheet for interior finishing material is provided.
Specifically, as an aspect of the base sheet of the interior finishing material of the present invention, a first aspect in which a water-absorbing nonwoven fabric, a foamed resin sheet, and a water-absorbing nonwoven fabric are laminated in this order, paper, foamed resin sheet, and paper And a third mode in which a water-absorbent nonwoven fabric, a foamed resin sheet, and paper are stacked in this order. In the first aspect, the water-absorbing nonwoven fabric laminated on both sides of the foamed resin sheet may be made of the same material or different materials. In the second aspect, the paper laminated on both sides of the foamed resin sheet may be made of the same material or may be made of different materials. In the third aspect, either the water-absorbing nonwoven fabric or the paper may be on the side attached to the housing.

It is preferable that the base sheet of the interior finishing material of the present invention can be applied to the casing in the manner of cross-bonding by gluing to the surface in contact with the casing with a gluing machine.
The gluing machine normally transfers the glue contained in the glue basket in the gluing machine main body to the back surface of the sheet with a gluing roller while feeding the sheet drawn from the rear part of the gluing machine main body forward with a plurality of rolls. Is a device for applying glue continuously. The base sheet of the interior finish material of the present invention is also flexible in order to enable gluing to the surface in contact with the housing using such an apparatus.

  The base sheet of the interior finishing material of the present invention preferably has a thickness of 2 to 12 mm, more preferably 3 to 10 mm, and even more preferably 3 to 6 mm. When the thickness is less than 2 mm, the thickness of each layer becomes too thin to perform the functions of heat insulation and moisture absorption / release. On the other hand, if the thickness exceeds 12 mm, it becomes difficult to apply the existing base as it is.

  The foamed resin sheet preferably has a heat insulating effect and is highly waterproof, and examples thereof include a foamed polyolefin sheet such as a foamed polyethylene sheet or a foamed polypropylene sheet, a foamed polyvinyl chloride sheet, and a foamed polyurethane sheet. Among them, it is preferable to use a foamed polyethylene sheet because a toxic gas is not discharged during combustion, and a flame-retardant material is more preferable.

The foaming ratio may be selected so that a desired heat insulating effect is obtained in the foamed resin sheet, but the foaming ratio is preferably 10 to 50 times, and more preferably 20 to 30 times.
The thermal conductivity of the foamed resin sheet is not particularly limited, but is preferably 0.05 W / (m · K) or less, preferably 0.04 W / (m · K) or less, and 0.03 W / ( m · K) is more preferable.

  The thickness of the foamed resin sheet is preferably 2 to 8 mm, and more preferably about 3 to 4 mm. If the thickness of the foamed resin sheet is less than 2 mm, sufficient heat insulation cannot be obtained. On the other hand, if the thickness of the foamed resin sheet exceeds 8 mm, the thickness of the base sheet of the present invention will increase and affect the finish of the interior, making it difficult to apply the existing base as it is. .

  As a water absorbing nonwoven fabric laminated | stacked on both surfaces of a foamed resin sheet, if it is a nonwoven fabric which has water absorption, it will not specifically limit, You may use a well-known thing. Moreover, the paper laminated | stacked on both surfaces of a foamed resin sheet may use the paper of a well-known form, if it has water absorption.

  As the water-absorbing nonwoven fabric used in the present invention, it is preferable to use one having a water absorption amount of 10 times or more. The amount of water absorption is measured as follows. After placing 1 g of a water-absorbing nonwoven fabric on a wire mesh (No. 10) of known mass, gently pour water over the entire surface with a beaker to completely absorb the entire sample, continue to pour water until it overflows, and leave it for 1 minute. The sample mass after water absorption is measured together with the wire mesh, and the amount of water absorption (sample mass after water absorption (g) -1) is calculated.

  The thickness of the water-absorbing nonwoven fabric or paper is preferably 0.05 to 4 mm, and more preferably 0.1 to 2 mm. If the thickness of the water-absorbing nonwoven fabric or paper is less than 0.05 mm, sufficient moisture absorption / release properties cannot be obtained. On the other hand, if the thickness of the water-absorbing nonwoven fabric or paper exceeds 4 mm, the thickness of the base sheet of the present invention will increase and affect the finish of the interior. It becomes difficult.

The nonwoven fabric or paper laminated on the side of the foamed resin sheet in contact with the interior finishing material may be any material that can adhere to the interior finishing material. Among them, it is preferable to laminate a rayon nonwoven fabric and a cotton nonwoven fabric having a moisture absorption / release amount having a dew condensation preventing effect. Moreover, polyester may be mixed in these nonwoven fabrics from a viewpoint of strength improvement. When the interior finishing material is cloth, it is also preferable to laminate paper.
As the nonwoven fabric or paper laminated on the side of the foamed resin sheet in contact with the housing, rayon nonwoven fabric, polyester nonwoven fabric and paper are preferable.

The base sheet of the interior finishing material of the present invention can be attached to any type of housing such as gypsum board, plywood, calc board, concrete, and mortar.
And a paste is used for attachment to a housing. As the paste, an aqueous paste is preferable. The type of paste is not particularly limited, but it is preferable to use a starch-based, cellulose-based or polyvinyl alcohol-based paste, and it is more preferable to use a starch-based paste. These may be used alone or in combination, and other synthetic resin emulsions may be used in combination.

The interior finishing material attached to the surface opposite to the casing in the interior finishing material base sheet of the present invention is not particularly limited, and any form of interior finishing material such as wall covering, carpet, tile, board, etc. may be used. . As an interior finishing material, fiber-reinforced coating walls such as diatom plaster, scallop plaster, magma ceramic material, and plaster that can be finished with a natural material having a coating thickness of about 3 mm may be used.
Especially, as an interior finishing material, what can be adhere | attached with the base sheet of this invention with a paste is preferable. As the paste, the above-mentioned aqueous paste is preferable. Furthermore, the interior finishing material used in the present invention is more preferably flexible so that it can be glued with a gluing machine. The painted wall is also preferable because it can be finished without cracking or scattering.

  The base sheet of the interior finishing material of the present invention can be obtained by laminating a foamed resin sheet and a water-absorbing nonwoven fabric or paper by a known method. Specific examples include adhesion with an adhesive, heat fusion, and extrusion laminating method, but it is preferable to use a dry laminating method that is easy to process and can be firmly laminated.

  Although the width | variety of the base sheet of the interior finishing material of this invention is not specifically limited, From a viewpoint of construction ease, it is preferable that it is 600-1200 mm, and it is more than 1000 mm which is the effective width | variety of a normal gluing machine especially. It is particularly preferable that the thickness is about 920 to 950 mm.

As another preferable embodiment of the composite sheet for interior use of the present invention, the composite sheet for interior use in which a water-absorbing nonwoven fabric or paper is laminated on one side of a foamed resin sheet and a paste is applied or impregnated on the other side. Is mentioned.
In the interior composite sheet, a mode in which a release paper is further laminated on an adhesive layer formed by applying or impregnating a paste is common. This is because if the adhesive layer is covered with release paper, it is possible to prevent the adhesive from adhering to other objects or loss of adhesiveness during handling such as transportation and storage. The release paper is not particularly limited, and a known paper may be used. Specifically, it is possible to perform mold release treatment with silicone, etc. by applying irregularities to synthetic resin films such as polyester, polyolefin, polyvinyl chloride, vinylon, etc., pulp paper such as fine paper, glassine paper, etc. And those that have been applied.

  As a method for providing the adhesive layer on one side of the foamed resin sheet, a known method may be used. For example, a paste is applied to the release paper with a reverse coater, comma coater or die coater and bonded to the foamed resin sheet. You just have to do it. At this time, a curing agent may be added to the paste as desired.

  Although the magnitude | size of the composite sheet for interiors of this aspect is not specifically limited, It is preferable from making a tape shape from construction efficiency improving. More specifically, it is preferably wound in a roll shape with a width of 20 to 50 mm and a length of 2 to 10 m.

The interior composite sheet of this embodiment can be attached to any type of housing as the base sheet of the interior finish material. Furthermore, it can be attached to a base made of metal such as iron or aluminum. Specifically, it can be attached to a window frame such as a steel sash or an aluminum sash or an entrance / exit frame.
In the interior composite sheet of this embodiment, the interior finish is not necessarily required, and the interior finish described above may or may not be attached on the water-absorbing nonwoven fabric or paper layer. By setting it as such a mode, even if it is not a construction specialist, there exists an advantage that the composite sheet for interiors of this invention can be constructed easily.

Since the base sheet of the interior finishing material of the present invention is configured as described above, the following effects can be obtained.
If the base sheet of the interior finishing material of the present invention is used, two performances of heat insulation and prevention of condensation can be simultaneously imparted to the interior of a building.
In the base sheet of the interior finishing material of the present invention, since the water-absorbent woven fabric or paper is present on the surface in contact with the casing, the paste can easily penetrate into the base sheet, and as a result, can be firmly bonded to the casing.
Since the base sheet of the interior finishing material of the present invention has a small thickness, even if it is attached later in an existing building, it does not affect the finish of the interior. Therefore, it is not necessary to remove the existing frame, and it is not necessary to replace the finishing frame, the baseboard, or any other parting material. Therefore, the construction period can be shortened and the construction cost can be reduced. There is little discharge of industrial waste. In addition, the noise associated with the work is reduced, and the trouble to the neighborhood is reduced, so that the work can be performed with peace of mind.

  Since the base sheet of the interior finishing material of the present invention may be attached to the casing with a paste, no special technique is required for construction. The construction can be completed only by those who have the technology to construct interior finishing materials. If a gluing machine is used, it can construct more simply and efficiently.

The composite sheet for interior of the present invention has the same effect even in aspects other than the base sheet of the interior finish material.
In the interior composite sheet of the present invention, particularly when the interior finishing material is not attached to the surface, the load applied to the interior composite sheet of the present invention is reduced, so that a water-absorbing nonwoven fabric or paper layer is not provided on the base side. In other words, even if the water-absorbing nonwoven fabric or paper is laminated only on one side of the foamed resin sheet, there is no problem in the adhesive strength with the base. Furthermore, there exists an advantage that manufacturing cost can be reduced by doing in this way.
In the composite sheet for interior use of the present invention, by applying or impregnating a paste on one side of the foamed resin sheet in advance, the construction can be performed more simply and efficiently.

Embodiments of the invention will be described with reference to the drawings.
The base sheet 3 of the interior finishing material of the present invention shown in FIG. 1 has a water-absorbing nonwoven fabric 2 laminated on both surfaces of a foamed resin sheet 1 excellent in heat insulation performance, and exhibits a moisture absorption / release effect necessary for preventing condensation. . Further, the adhesive effect of the glue is enhanced, and the adhesion of the casing 4 and the interior finishing material 5 is improved.
As the foamed resin sheet 1, “Torepefu 30 times expanded product” manufactured by Toray Industries, Inc. was used.

The water-absorbent nonwoven fabric 2 is preferably one in which polyester is mixed with rayon nonwoven fabric in a proportion of 30 to 50%, more preferably one in which polyester is mixed in a proportion of 30 to 40%, and the basis weight is 30 to 80 g, preferably 50 to 60 g. It is.
Paper may be used in place of the water-absorbing nonwoven fabric 2. The paper is preferably an inkjet paper using recycled fibers used for cloth backing paper. A paper having a thickness of about 250 μm is more preferable.

On the existing wall with the cloth, peel off the cloth and use the base as it is.
The base sheet 3 of the interior finishing material is passed through a gluing machine and glued to one surface of the water absorbent nonwoven fabric 2. The glued surface is applied to the housing, and the base sheet 3 and the housing 4 of the interior finishing material are bonded.
After pasting and drying the base sheet 3 of the interior finish material, when finishing with the interior finish material 5 from above, the wall is finished within the scattered dimensions of the joint frame, baseboard, and parting material.

The composite sheet for interior 8 of the present invention shown in FIG. 2 has a water-absorbing nonwoven fabric 2 laminated on one side of the foamed resin sheet 1 excellent in heat insulation performance, and exhibits a moisture absorption / release effect necessary for preventing condensation. As the foamed resin sheet 1 and the water-absorbing nonwoven fabric 2, the same material as the base sheet 3 of the interior finish material of the present invention shown in FIG. 1 is used.
On the other surface of the foamed resin sheet 1, that is, the surface on which the water-absorbing nonwoven fabric 2 is not laminated, an adhesive layer 6 to which a paste is applied is provided, and the adhesive layer 6 is protected by a release paper 7. Yes.

  The interior composite sheet 8 of the present invention can be attached simply by pressing the adhesive layer 6 against the steel sash or aluminum sash of the window frame or the entrance / exit frame while peeling the release paper 7. With such an extremely simple attachment, condensation occurring on the window frame or the entrance / exit frame can be prevented, and the heat insulation of the metal portion inferior in heat insulation can be supplemented.

The attachment sectional view of the ground sheet of the interior finishing material which is one mode of the interior composite sheet of the present invention is shown. Sectional drawing of the composite sheet for interiors of this invention of another aspect is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foamed resin sheet 2 Water-absorbing nonwoven fabric 3 Base sheet for interior finishing material 4 Housing 5 Interior finishing material 6 Adhesive layer 7 Release paper 8 Composite sheet for interior

Claims (3)

  A composite sheet for interiors, wherein a water-absorbing nonwoven fabric or paper is laminated on both sides or one side of a foamed resin sheet, and the water-absorbing nonwoven fabric or paper layer is necessarily attached to the base with a paste so that it is always on the outside.   The water absorbent nonwoven fabric or paper is laminated on both surfaces of the foamed resin sheet, and is used as a base sheet for an interior finishing material to be attached between the housing and the interior finishing material, and is attached to the housing with a paste. The composite sheet for interior as described.   The composite sheet for interior use according to claim 1, wherein a water-absorbing nonwoven fabric or paper is laminated on one side of the foamed resin sheet, and a paste is applied or impregnated on the other side.

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