JPH09192041A - Acrylic bathtub - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an acrylic bathtub which is light and can realize a transparent feeling showing the depth even with the thin thickness. SOLUTION: A colored translucent FRP layer 11 is formed on the rear surface side of an acrylic layer 9, while a translucent layer 10 colored to vignette the color of the FRP layer is formed on one or both of the front surface side and rear surface side of the FRP layer 11. Thus, light transmits through the acrylic layer 9 and the translucent FRP layer 11 to be reflected by the rear surface side and noticed by the reflection arc the rear surface side, and realize a transparent feeling showing the depth while these layers have the thin thickness and small lightness. Further, the glass fibers of the colored translucent FRP layer 11 is not viewed from the front surface side of an article even though the layer 11 is thin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an acrylic bathtub capable of providing a deep and transparent feeling even though the entire product is thin and lightweight.

[0002]

2. Description of the Related Art Usually, in an FRP embedded bath by a conventional wet method, when used for a long period of time, fibers and resin in the FRP layer are separated from each other, and the fiber pattern becomes blister on the surface of the gel coat layer. It had the drawback of appearing. Such blisters touch the skin of the bather to give them a feeling of strangeness, make them unattractive, and reduce their existence value by half.

Therefore, a new bathtub may be exchanged, but it is necessary to remove the tiles on the floor or wall surface around the old bathtub, which requires a large amount of work as a whole. Also, if the tiles are like those already discontinued, the same tiles could not be used to repair the peeled parts, and eventually it was necessary to replace all the tiles on the floor and walls.

When the old bathtub is removed and the new bathtub is installed again in this way, there is a drawback in that the whole construction work requires a large financial burden and cannot be performed easily. Therefore, conventionally, a lightweight and thin acrylic bathtub 1 and 2 having a laminated structure shown in FIGS. 5 and 6 has been developed, and the acrylic bathtubs 1 and 2 are fitted and mounted on an existing old bathtub with an adhesive. Then, the above-mentioned problems when the bathtub is replaced are solved.

That is, the acrylic bathtub 1 shown in FIG.
Form a colored translucent acrylic layer 3 on the product surface side,
The colored FRP layer 4 is formed on the back surface side. In the acrylic bath 2 shown in FIG. 6, the colored layer 6 is formed on the back side of the transparent acrylic layer 5, and F is further formed on the back side.
The RP layer 7 is formed. Since such acrylic bathtubs 1 and 2 can be made extremely thin and lightweight, they can be simply fitted and fitted on an existing bathtub via an adhesive, which is extremely simple and low cost. Construction of new acrylic bathtubs 1 and 2 is possible.

[0006]

However, in these acrylic baths 1 and 2, both are the first layer (the acrylic layer 3 or 5 on the surface side) and the second layer (FRP layer 4 or the coloring layer). 6) and light is reflected between them, and the shade of the acrylic layer 3 appears only in the bathtub 1 shown in FIG. 5, and the shade of the colored layer 6 appears only in the bathtub 2 shown in FIG. Because of this, I was not able to create a deep and transparent feeling. In other words, it was easily understood that the product had an extremely thin thickness, and the product value was reduced.

Also, in these acrylic baths 1 and 2,
The acrylic layer 3 or 5 is formed in the shape of a bath by vacuum forming, and this is covered on the forming die to further laminate the back surface side. It has a drawback that it is elongated and becomes thin, and a local color change occurs. This change in color shade has a drawback that it appears on the surface because of the thin thickness of the entire product, which causes variations in transparency, which adversely affects the product performance.

[0008]

SUMMARY OF THE INVENTION The present invention has been made by improving the prior art in view of the above-mentioned problems, and is lightweight and capable of exhibiting a deep transparent feeling even when the wall thickness is thin. The purpose is to provide an acrylic bath.

The means of claim 1 adopted by the present invention to solve the above-mentioned problems is a transparent acrylic layer, a colored translucent resin layer, and a colored translucent glass fiber reinforced plastic. This is an acrylic bathtub in which a layer and an opaque colored layer are sequentially laminated from the product surface side.

[0010] The means of claim 2 adopted by the present invention is:
It is an acrylic bath in which a transparent acrylic layer, a colored translucent glass fiber reinforced plastic layer, a colored translucent resin layer, and an opaque colored layer are sequentially laminated from the product surface side.

Further, the means of claim 3 adopted in the present invention is a transparent acrylic layer, a colored semi-transparent resin layer,
It is an acrylic bath in which a colored translucent glass fiber reinforced plastic layer, a colored translucent resin layer, and an opaque colored layer are sequentially laminated from the product surface side.

Furthermore, the means of claim 4 adopted by the present invention is to provide a colored translucent acrylic layer, a colored translucent glass fiber reinforced plastic layer, and an opaque colored layer in this order from the product surface side. It is a laminated acrylic bath.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the embodiments of the invention shown in the drawings. FIG. 1 is a vertical sectional view showing a laminated structure of an acrylic bath 8 according to a first embodiment of the present invention. As shown in the figure, this acrylic bath 8 has a transparent acrylic layer 9 formed on the front surface side with a thickness of 1 mm to 5 mm, and a colored semi-transparent resin layer 10 on the back surface side of 0.5 mm to 1.0 mm. It is formed with the thickness of. Then, a colored semi-transparent FRP layer 11 having a thickness of 2 mm to 5 mm is formed on the back surface side of the resin layer 10, and finally an opaque colored layer 12 having a thickness of 5 mm to 8 mm is formed.

Acrylic bathtub 8 thus formed
The total thickness of the product is preferably in the range of 5 mm to 8 mm. It can be seen that the average thickness of a resin bath such as a normal artificial marble bath is 8 mm to 15 mm, which is extremely thin as compared with this. Further, comparing the weights, when the frontage is a 1400 size bathtub, the conventional resin bathtub has a weight of 30 kg, whereas the acrylic bathtub 8 of the present embodiment has a weight of 16 kg, which is extremely lightweight. .

Here, the material of the colored translucent resin layer 10 is the same as the resin material used for the colored translucent FRP layer 11 formed on the back surface side thereof.
This is because the use of similar colors eliminates the discomfort of the hue and facilitates intentionally producing an arbitrary hue.

In the acrylic bath 8 of this embodiment, the light incident from the transparent acrylic layer 9 side on the surface is colored semitransparent resin layer 10 and colored semitransparent FRP layer 11
And is reflected by the opaque colored layer 12 on the back surface side thereof, resulting in a transparent feeling having a depth several times that of the conventional one reflecting only the acrylic layer shown in FIGS. 5 and 6. It is possible to put it out. In short, the acrylic bathtub 8 is capable of exhibiting a deep and transparent feeling while being thin and lightweight.

What is important in the laminated structure of the acrylic bath 8 is that a deep and transparent feeling is brought out under the problem that the thickness of the entire product must be reduced. For that purpose, it is the same as the conventional technique only by reflecting the light on the back surface side of the acrylic layer 9, and further the light is transmitted to the colored semi-transparent FRP layer 11 on the back surface side and reflected on the back surface side. It was found that it is possible to bring out a deep and transparent feeling even if it is thin.

However, simply, the colored semitransparent FRP layer 11 is formed directly on the back surface side of the acrylic layer 9, the opaque colored layer 12 is formed on the back surface side thereof, and the colored layer 12 reflects light. Only by doing so, the glass fiber of the FRP layer 11 becomes visible from the surface due to the light transmitted through the semitransparent FRP layer 11, and it cannot be put to practical use as a product.

Therefore, the inventors of the present invention have conducted extensive studies and, as a result, colored the semi-transparent FRP layer 11 on the front side or the back side, or both of them, for coloring the FRP layer 11 to have a shade. It was found that the glass fiber of the FRP layer 11 cannot be seen by the light transmitted through the FRP layer 11 and reflected on the back surface side if the semi-transparent layer is formed. This is the important significance of the present invention. The acrylic bath 8 shown in FIG. 1 described above is an embodiment in which a resin layer 10 for blurring the shade is laminated on the surface side of a colored translucent FRP layer 11.

FIG. 2 also shows a colored semitransparent FRP layer 1
FIG. 3 is a vertical cross-sectional view showing a laminated structure of an acrylic bath 13 according to a second embodiment of the present invention in which a resin layer 10 for blurring the hue is formed on the back surface side of No. 1.

Further, FIG. 3 shows a third embodiment of the present invention in which a resin layer 10 for blurring the hue of the FRP layer 11 is formed on both the front surface side and the back surface side of the colored semitransparent FRP layer 11. It is a longitudinal cross-sectional view showing a laminated structure of the acrylic bath 14 according to the embodiment.

Furthermore, FIG. 4 shows the acrylic layer 15 on the surface.
Of the present invention in which the opaque colored layer 12 is formed on the back surface side of the FRP layer 11 so that the shade of the colored semi-transparent FRP layer 11 on the back surface side is blurred. Acrylic bathtub 1 according to Embodiment 4
6 is a vertical sectional view showing a laminated structure of No. 6 of FIG. In addition, these FIG.
The basic operational effects obtained in the acrylic bathtubs 13, 14 and 16 of the second to fourth embodiments shown in FIG. 4 are the same as those of the acrylic bathtub 8 according to the first embodiment described above. is there.

The present invention is not limited to the above-mentioned embodiments, but can be modified appropriately. For example, the opaque colored layer 12 formed on the back surface side of each acrylic bath 8, 13, 14 and 16 may be formed by simply coating an opaque resin material.
It may be formed of RP material. When formed of an opaque FRP material, this layer functions as a backup layer that reinforces the overall strength, and it is possible to use the product as a single bath as well as when stacking it on an existing bath. Is.

[0024]

As described above, in the present invention,
A colored semitransparent FRP layer is formed on the back side of the acrylic layer, and a colored semitransparent layer for blurring the hue of the FRP layer on either or both of the front side and the back side of the FRP layer. Since it is formed, it is possible to manufacture an acrylic bathtub which is extremely thin and lightweight and which can bring out a deep transparent feeling. Moreover, even if it is thin, it is a colored translucent FRP.
The glass fibers of the layer are not visible from the product surface side.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view showing a part of a laminated structure of an acrylic bath according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view showing a part of a laminated structure of an acrylic bath according to a second embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view showing a part of a laminated structure of an acrylic bath according to a third embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view showing a part of a laminated structure of an acrylic bath according to a fourth embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view showing a part of a laminated structure of a conventional acrylic bath.

FIG. 6 is a longitudinal sectional view showing a part of another conventional laminated structure of an acrylic bath.

[Explanation of symbols]

8 ... Acrylic bath 9 ... Transparent acrylic layer 10 ... Colored translucent resin layer 11 ... Colored translucent FRP layer 12 ... Opaque colored layer 13 ... Acrylic bath 14 ... Acrylic bath 15 ... Colored translucent acrylic Layer 16 ... Acrylic bathtub

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B32B 27/30 B32B 27/30 A // B29K 33:04

Claims (4)

[Claims] 1. An acrylic bath comprising a transparent acrylic layer, a colored translucent resin layer, a colored translucent glass fiber reinforced plastic layer, and an opaque colored layer which are sequentially laminated from the product surface side. 2. An acrylic bath comprising a transparent acrylic layer, a colored translucent glass fiber reinforced plastic layer, a colored translucent resin layer, and an opaque colored layer, which are sequentially stacked from the product surface side. 3. A product surface side comprising a transparent acrylic layer, a colored translucent resin layer, a colored translucent glass fiber reinforced plastic layer, a colored translucent resin layer, and an opaque colored layer. An acrylic bathtub that is stacked in order. 4. An acrylic bath comprising a colored translucent acrylic layer, a colored translucent glass fiber reinforced plastic layer, and an opaque colored layer laminated in this order from the product surface side.