JPH01250480A - Cloth for interior part - Google Patents

Abstract

PURPOSE:To obtain a cloth for interior part detectable of moisture condensation arising on an inner part face of a building, by providing a color change region changing color with deposition of water on the surface of base material. CONSTITUTION:A cloth for interior part such as cloth X1 or X2 is obtained by providing a color change region B consisting of color change layer 2 comprising of synthetic resin layers containing inorganic or organic compound changing color being transferred to a hydrate, etc., by absorbing moisture in air and recovering of color by removing deposited water, on a sheet-like material 1 used for interior part such as wall paper. Arising of moisture condensation is quickly and clearly known, utilizing the character of changing to blue in anhydrous state and to pink by moisture absorption, using for instance, cobalt chloride as a color change agent.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an interior cloth that can detect dew condensation occurring on the interior surfaces of buildings.

[Conventional technology]

In recent years, as buildings such as houses have become more airtight, the occurrence of condensation on interior surfaces has become a problem. When condensation forms on the interior surfaces of a building, it can cause stains and discoloration on the interior materials (cloth, etc.), peeling of the interior materials, and the growth of mold, staining the interior materials and causing harm to residents. Problems such as harming the health of people also occur. Furthermore, the occurrence of dew condensation also means that moisture accumulates inside closets and cupboards, causing the problem of damaging clothing and the like stored inside.

To prevent damage caused by condensation on interior surfaces, when condensation occurs, take measures to eliminate condensation, such as immediately ventilating the room, suppressing the generation of water vapor, and drying the room. All you have to do is take a class.

[Problem to be solved by the invention]

However, when condensation begins to form on the interior surface, it is hardly visible from the outside, so in the past, condensation progressed considerably, causing large water droplets to accumulate on the interior surface and causing the damage described above. It was not possible to detect condensation until it occurred.In order to quickly detect condensation, it is necessary to install an electrical condensation sensor or humidity sensor that conducts electricity when it gets wet. Although it is possible to do so, it is too expensive to install in general houses. In addition, installation work such as wiring is required, and it is extremely uneconomical and impractical to install a dew condensation sensor or the like as described above on each interior surface of each room in a house or the like.

In view of the above circumstances, the present invention provides an interior decoration system that can quickly and reliably detect the occurrence of dew condensation on the interior surfaces of houses, etc., by itself, without requiring the expensive and troublesome sensors described above. The goal is to provide cloth for use.

[Means to solve the problem]

In order to solve the above problems, the interior cloth (hereinafter referred to as "cloth") according to the present invention has a function of detecting dew condensation by providing a discolored area on the surface of the base material that changes color due to adhesion of moisture. I did it like that.

[For production]

If a cloth with areas that change color due to adhesion of moisture, that is, water absorption (moisture absorption), is used on the interior surfaces of houses, etc., the moisture generated by condensation will adhere to the cloth and the color of the discolored areas will change. This change will quickly and clearly indicate the occurrence of condensation.

[Example of implementation] First, in this invention, the discoloration used to display dew condensation refers to the amount of visible light that forms an image on the retina of the human eye (area density).
It is a general term for recognizable changes in color perception (visual sense distinguished by brightness, red, dark blue, etc.) that occurs in response to color and quality (spectral distribution). Therefore, it is only necessary that the adhesion of moisture causes a change in any of the three so-called color attributes of brightness, nine hues, and saturation in the discolored area, and that this can be identified.

The specific mechanism by which such discoloration occurs in appearance is not particularly limited in the present invention. for example,
In addition to the fact that the surface layer of the cloth changes color due to the adhesion of moisture, the surface layer changes from opaque to transparent due to the adhesion of moisture, and as a result, the underlying material (base material, etc.) of the transparent area becomes visible. Items with hail and discoloration,
Alternatively, the surface layer may change from transparent to opaque due to moisture adhesion, and the underlying color may become invisible.

Based on this recognition, specific examples will be listed below and explained with reference to drawings showing their cross-sectional structures.

The cloths XI and X3 according to the present invention shown in FIGS.
A discoloration area B is formed by providing a discoloration agent layer 2 that discolors due to adhesion of moisture on the surface of the discoloration agent. Here, the base material 1 is not particularly limited as long as it is a sheet-like material used for interior decoration such as walls, and examples include paper,
The cloth 9 may be arbitrarily selected from synthetic resin or the like. Further, an adhesive layer (not shown) or the like may be provided on the back surface of the base material 1.

The color change agent layer 2 is not particularly limited, but for example, it changes color by absorbing moisture in the air (moisture absorption) and becomes a hydrate, and when the attached moisture is removed by drying etc., it is restored. Examples include a synthetic resin layer containing an inorganic compound or an organic compound (color change agent) that causes color. More specifically, cobalt chloride, for example, has a blue color in an anhydrous state, but has the property of changing into a pale red (pink) hydrate upon moisture absorption (water absorption). Prepare a resin face etc. in which such a color change agent is uniformly dispersed and contained,
By coating (applying) this onto the base material 1, the color change agent layer 2 is easily formed. Alternatively, a synthetic resin sheet containing a color changing agent such as the above-mentioned cobalt chloride or the like may be prepared and adhered to the base material 1. Furthermore, by using a combination of color-changing agents that change color in a water-absorbed state in combination, it is possible to display dew condensation in multiple colors.

The color change agent layer 2 may be provided uniformly over the entire surface of the base material l, as shown in the cross X in FIG. (As shown in BL, discoloration agent is applied to predetermined areas so that the desired patterns, 9 designs, 1 figure, 1 character, symbol, etc. (hereinafter collectively referred to as "patterns, etc.") are formed). M2 is formed, and the surface of the cloth X2 contains a discoloration area B, where the discoloration agent layer 2 is formed, and a non-discoloration area A, where this is not formed (that is, it does not discolor even if moisture adheres to it). You can leave it there.

If the non-discolored area A also exists, as in the latter case, further,
A colored layer 3 containing an arbitrary pigment, dye, etc. is provided between the color change agent layer 2 (here, it is assumed to have a predetermined pattern, etc.) and the base material 1, and the colored layer 3 is provided as follows. Condensation can be displayed.

First, the color of this colored layer 3 is set to be the same as the color of the color change agent layer 2 in a dry state (for example, blue when cobalt chloride is used; the colors will be described below based on this example). I'll keep it. Then, in the dry state, the non-discolored area A and the discolored area B (
The color change agent layer 2 forming portion) are both blue in color and cannot be distinguished from each other in terms of appearance. However, when the humidity in the air increases and dew condensation occurs, the color change agent layer 2 in the color change area B absorbs water and changes color (from blue to pink), so that a predetermined pink pattern or the like comes to stand out. Or, on the other hand, if the color of the colored layer 3 is made the same as the color of the color change agent layer 2 (pink) when water is absorbed, the blue pattern etc. that had been formed until then will disappear due to the adhesion of water. This allows condensation to be recognized.

Such a colored layer 3 can be formed, for example, by preparing and coating a resin varnish containing any coloring pigment or dye, or by printing, or by using a synthetic resin ( For example, it is formed by adhering a vinyl chloride resin sheet or the like onto the base material 1, and the method is not particularly limited.

Note that these are just examples, and it goes without saying that the color of the colored layer 3 is not restricted depending on the color of the color change agent M2, and can be freely selected. Of course, even if the color change agent M2 is provided in a pattern or the like, the coloring layer 3 may be partially omitted, and the colored layer 3 may be formed only on a portion of the base material 1. Alternatively, instead of providing the colored layer 3, the base material 1 itself can be colored with an arbitrary pigment or the like. Further, it is also possible to provide the color change agent layer 2 so that the colored layer 3 is exposed in an arbitrary pattern or the like due to color change.

FIG. 2 shows another embodiment of the cloth according to the invention. These cloths X, X4 are provided with a colored layer 2 on the surface of a sheet-like base material 1, and a colored layer 2 is formed on the surface of the colored layer M2 from a material that is opaque in a dry state but becomes transparent when it absorbs water. A discolored area B is formed by laminating opaque water absorbing layers (masking layers) 4.

The opaque water absorbent N4 provided on this surface is opaque in a normal dry state and exhibits its own unique color. That is, the coloring M3 (coloring layer 3
If it is not provided, it serves to mask the color of the base material 1 (hereinafter the same), and in a dry state, the color of the colored layer 3 cannot be seen from the surface of the cloth. However, when moisture adheres to this opaque water-absorbing layer 4 and water absorption occurs, a portion of the layer 4 transmits light and changes to be transparent.

As a result, the color of the colored layer 3 comes to stand out through the transparent water absorbing layer 4, and the occurrence of dew condensation can be quickly and clearly recognized due to this color change.

Specific materials for this opaque water absorption layer 4 include, for example:
Examples include, but are not limited to, those using SiOx, CaCO5, AlxOl, etc., which have the property of becoming transparent by absorbing water and returning to opacity when the attached moisture is removed. If so, they can be freely selected. These may also be colored by containing any coloring agent or the like. Furthermore, this opaque water absorption layer 4 is
It may be formed not on the entire surface of the cloth but partially at any location, for example, to form a pattern or the like.

Most preferably, the opaque water-absorbing layer 4 is completely opaque in a dry state and completely transparent in a water-absorbing state; however, in practical use, there is a clear difference in transparency between the dry state and the water-absorbing state. That's fine. For example, even if it is semi-transparent in a dry state and the color of the base (colored layer 3 or base material 1) is only slightly visible, it becomes almost completely transparent due to water absorption and the color of the base can be clearly seen. Since the discoloration can be clearly detected, the effects of the present invention can be fully obtained.

Regarding the thickness of the opaque water-absorbing N4, if it is thin, even a small amount of water will penetrate the entire layer 4 to the bottom, making the layer 4 transparent, but as the thickness increases, the water will increase. The opaque water absorption M4 cannot penetrate to the lower part, and only the upper part becomes transparent, and the lower part remains opaque. If more moisture is generated due to condensation, the lower part that remains opaque will also become transparent, causing the underlying color to become dull and discoloration to be recognized. In view of the above circumstances,
The thickness of the opaque water-absorbing layer 4 is preferably selected appropriately depending on the location and conditions in which it is used. In addition, if necessary, even on the same substrate, the thickness can be changed stepwise or continuously depending on the location, and the amount of attached moisture, that is, the degree of condensation, can be determined based on the size of the discolored area, etc. can also be displayed.

The color of the colored layer 3 is arbitrarily selected, and the colored layer 30
By changing the color, the display color during dew condensation can be freely selected. In addition to coloring the entire cloth in the same color, a colored layer 3 made up of a plurality of colored parts may be formed. On the other hand,
When the colored layer 3 contains a fluorescent agent, the display at the time of dew condensation becomes clearer and clearer, and the warning effect can be enhanced.

Furthermore, as shown in FIGS. 2(a) and 2(b), the colored M3 is uniformly formed on the entire surface of the base material 1.
It may be partially provided in a pattern or the like. By doing so, it becomes possible to encourage people to take measures to eliminate condensation, such as ventilation, using a pattern or the like that absorbs water at the same time.

Note that it is also possible to omit the colored layer 3 on the base material 1 so that one side of the base material plays the role of the colored layer.

That is, the color of the base material 1 itself may become dull when dew condenses. Also, instead of providing the colored layer 3,
The base material 1 can also be colored with an arbitrary coloring agent or the like.

In addition, as shown in FIG. 2(b), on the surface of the opaque water-absorbing layer 4 of the cloth X4, so as to partially cover the water-absorbing layer 4,
A transparent blocking layer 5 that blocks the passage of moisture may be laminated. In this case, the area where the transparent blocking layer 5 is laminated becomes the non-discolored area A, which coexists with the discolored area B where the opaque water-absorbing layer 4 is directly exposed. The material for the transparent barrier layer 5 may include, but is not limited to, water-repellent materials such as transparent fluororesin and transparent acrylic resin.

The dew condensation detection function in the cloth X4 is as follows. First, when there is no dew condensation on the surface of the cloth X4, the colored M3
Since the areas B and A are covered with the opaque water-absorbing layer 4, the areas B and A are indistinguishable from each other in terms of appearance. However, when dew condensation occurs and moisture adheres to the surface of the cloth X4, no change occurs in the non-discoloration area A where the transparent blocking layer M5 is located because the penetration of moisture into the opaque water absorbing layer 4 is blocked, but the transparent blocking layer In the discolored area B where there is no opaque water absorption layer 4, water reaches the opaque water absorption layer 4 and is absorbed, and the water absorption layer N4 changes from an opaque state to a transparent state. When the water-absorbing M4 becomes transparent, the colored N3 underneath it becomes transparent.
Discoloration occurs as the color becomes visible through the surface. In this way, the occurrence of condensation is clearly displayed by contrasting the discolored area B where the color of the colored layer 3 is visible and the non-discolored area A where the colored layer 3 is covered with the opaque water absorption layer 4 and is not visible. It is.

The arrangement pattern of the discoloration area B and the non-discoloration area A in the cross x4 is freely selected, such as an arbitrary pattern. For example, water absorption may alert you to the occurrence of condensation, or
The discolored area B may be used as letters or symbols to encourage taking measures to eliminate condensation such as ventilation, or the non-discolored area A may serve the purpose.

The cloth according to the present invention described above can be used on the interior surfaces of houses, on the inside surfaces of storage areas such as closets and cupboards, on ceilings, and in any other place where it is necessary to detect the occurrence of condensation. . In addition, after detecting dew condensation, if the moisture adhering to the cloth is removed by ventilation or drying by raising the temperature, the initial state before condensation will be reproduced, so this cloth can be used repeatedly. It is something.

〔Effect of the invention〕

The cloth according to the present invention described above has a discolored area on the surface of the base material that changes color due to adhesion of moisture, so when moisture generated by condensation adheres to the cloth surface, it will not appear in the discolored area. It has a function that can immediately detect the occurrence of condensation by detecting a change in the temperature. Additionally, this cloth is extremely inexpensive to manufacture.

In other words, without using dew condensation sensors, etc., which are expensive and troublesome to install, as in the past, by simply using the cloth according to the present invention on the interior surface as an interior material, the color changes, which is extremely easy to understand. In this way, it is possible to display the occurrence of condensation at any location.

If the cloth indicates the occurrence of condensation, measures such as ventilation and suppression of water vapor generation can be promptly taken to eliminate the problem. Therefore, it becomes possible to reliably prevent damages such as staining of interior surfaces and the growth of mold, thereby making an extremely large contribution to the maintenance and preservation of the environment of houses and the like.

[Brief explanation of the drawing]

Figures 1 (a) and (bl) and Figures 2 (al and (b)) show an example of an interior cloth 5 according to the present invention.
% (This is a cross-sectional structural diagram of Jll. 1... Base material 2... Color change agent layer 4... Opaque absorbent 7
Layer A...non-discolored area B...discolored area X...
Interior cloth agent Patent attorney Takehiko Matsumoto

Claims (1)

[Claims] 1. An interior cloth that has a discolored area on the surface of the base material that changes color due to adhesion of moisture, and has a function to detect condensation.