JP2020158370A - Resin member and system kitchen - Google Patents

Abstract

An object of the present invention is to provide a resin member and a system kitchen capable of preventing conspicuous scratches on a resin member such as artificial marble and maintaining high aesthetic appearance for a long period of time. A structure of a resin member (150) according to the present invention is a resin member in which aggregates (154) are dispersed in a base material of a resin (152). It is characterized by being colored in a color similar to that of the material. [Selection drawing] Fig. 2

Description

The present invention relates to a resin member used for a top plate or the like of a system kitchen, and a system kitchen provided with the top plate, a sink, or both.

In recent years, the mainstream of kitchens is a system kitchen equipped with multiple storages (cabinets) under a worktop consisting of a single top plate. The top plate (worktop) that covers the upper surface of the entire kitchen is provided with a built-in stove and sink, and a cooking space that is a flat table surface mainly used for cooking.

For the top plate of the worktop, a synthetic resin such as artificial marble or a metal plate such as stainless steel is used. For example, the kitchen counter of Patent Document 1 is provided with a surface layer of artificial marble based on synthetic resin. In the kitchen counter of Patent Document 1, an auxiliary layer having a thermal conductivity higher than that of the surface layer and a linear expansion coefficient close to that of the surface layer is attached to the back surface of the surface layer. According to Patent Document 1, discoloration and deformation are less likely to occur even at high temperatures in a microwave oven, and problems such as cracks and delamination are less likely to occur.

Japanese Unexamined Patent Publication No. 9-10053

A kitchen counter made of artificial marble as in Patent Document 1 has the advantages of having a high aesthetic appearance and being excellent in design. However, the kitchen counter (top plate) made of artificial marble is liable to be scratched by contact with cooking utensils and tableware. For this reason, there is a drawback that the scratches are easily noticeable and the aesthetic appearance is easily lost as the period of use is extended.

In view of such a problem, an object of the present invention is to provide a resin member capable of preventing conspicuous scratches on a resin member such as artificial marble and maintaining a high aesthetic appearance for a long period of time.

In order to solve the above problems, a typical configuration of the resin member according to the present invention is a resin member in which an aggregate is dispersed in a resin base material, and the surface thereof is subjected to unevenness treatment. Is colored in a color similar to that of the base material.

According to the above configuration, since the surface of the resin member is subjected to unevenness treatment, scratches caused by contact with cooking utensils and tableware (hereinafter referred to as cooking utensils and the like) can be made inconspicuous. This makes it possible to maintain a high aesthetic appearance in the resin member for a long period of time. In addition, since the aggregate that is harder than the resin is dispersed, even if the resin that is the base material is scraped by contact with cooking utensils, etc., the aggregate is exposed to prevent further scraping of the resin. Can be done. At this time, since the aggregate is colored in a color similar to that of the base material (similar color), the exposed aggregate is not conspicuous. Therefore, it is possible to suitably maintain the aesthetic appearance of the resin member.

The particle size of the aggregate is preferably 300 μm on average. Further, it is preferably in the range of 150 μm to 500 μm. By setting the particle size as described above, it is possible to prevent the aggregate from peeling off from the resin when scratches are generated, and it is possible to prevent molding defects of the top plate. The distance between the aggregates is preferably 140 μm or less.

The unevenness treatment is preferably a rock surface with an irregular shape. As a result, the scratches caused by the contact with the cooking utensil or the like can be more preferably made inconspicuous, and the above-mentioned effect can be enhanced.

It is preferable that the aggregate is uniformly dispersed throughout the resin member. When the resin member in which the aggregate is dispersed in the resin is molded, the resin shrinks, but the aggregate does not shrink. Therefore, when the aggregate is contained only in a part of the resin member, for example, the surface portion, the shrinkage is small in the surface portion and large shrinkage occurs in the other portion. Then, when a large member such as the top plate of the kitchen counter is molded by the resin member, warpage occurs. On the other hand, by uniformly dispersing the aggregate throughout the resin member, it is possible to suitably prevent warpage when the large member is molded by the resin member.

A typical configuration of a system kitchen according to the present invention is characterized in that the above resin member is provided on a top plate, a sink, or both. This makes it possible to provide a system kitchen that can prevent the scratches from being noticeable and maintain a high aesthetic appearance for a long period of time.

According to the present invention, it is possible to provide a resin member and a system kitchen capable of preventing conspicuous scratches on a resin member such as artificial marble and maintaining a high aesthetic appearance for a long period of time.

It is a figure explaining the system kitchen. It is a schematic sectional view of the top plate of this embodiment. It is a figure which shows the example of the surface texture of the top plate. It is a figure explaining the range on the small diameter side of the particle diameter of an aggregate. It is a figure explaining the range on the large diameter side of the particle diameter of the aggregate. It is a figure explaining the performance evaluation result of an Example and a comparative example. It is a figure explaining the detail of scratch resistance. It is a figure explaining the details of the high heat pot resistance.

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in such an embodiment are merely examples for facilitating the understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are designated by the same reference numerals to omit duplicate description, and elements not directly related to the present invention are not shown. To do.

(System kitchen (kitchen 100))
FIG. 1 is a diagram illustrating a system kitchen (hereinafter, referred to as a kitchen 100) according to the present embodiment. As shown in FIG. 1, the kitchen 100 of the present embodiment is a so-called system kitchen provided with a plurality of storages (cabinets) under one top plate 110 (worktop). The top plate 110 is made of stainless steel and covers the entire upper surface of the kitchen 100. The top plate 110 is provided with a built-in stove 112, a cooking space 114 which is a flat table surface and is a kitchen counter mainly used for cooking, and a sink 116.

Below the top plate 110, there are storages such as a stove cabinet 120 in which the main body of the stove 112 is installed, a base cabinet 130 corresponding to the cooking space 114, and a sink cabinet 140 in which the sink 116 is installed. Each storage function functions as a storage space, and the empty space in the storage storage also accommodates wiring to the stove 112 and water supply / drainage pipes to the sink 116 and the faucet.

(Top plate 110 (resin member))
FIG. 2 is a schematic cross-sectional view of the top plate 110 of the present embodiment. The top plate 110 of this embodiment is composed of a resin member 150. As shown in FIG. 2A, the surface 150a of the resin member 150 constituting the top plate 110 is subjected to unevenness treatment. As a result, scratches caused by contact with cooking utensils and tableware (hereinafter referred to as cooker 102) can be made inconspicuous. Therefore, it is possible to maintain a high aesthetic appearance on the top plate 10 made of the resin member 150 for a long period of time.

FIG. 3 is a diagram showing an example of the surface texture of the top plate 110. In particular, in the present embodiment, as shown in FIG. 3, rock surface-like unevenness treatment is applied. Rock surface tone is composed of irregular curved surfaces, and irregularity means that the height, spacing, and curvature of mountains and valleys are irregular. As a result, the scratches caused by the contact with the cooker 102 can be more preferably made inconspicuous, and the above-mentioned effect can be enhanced. This is because if the shape is regularly uneven, scratches and marks of a high-temperature pot will be conspicuous. However, the unevenness treatment is not limited to the rock surface tone, and it is naturally possible to use other treatments and patterns.

Refer to FIG. 2A again. As shown in FIG. 2A, in the top plate 110, a large-diameter aggregate 154 and a small-diameter filler 156 are dispersed in a resin member 150 which is a base material. As the material of the aggregate 154 and the filler 156, any material can be used as long as it is hard, and for example, both can be formed of silica. The main difference between the aggregate 154 and the filler 156 is the particle size, and the aggregate 154 has a larger diameter than the filler 156.

FIG. 4 is a diagram illustrating a range on the small diameter side of the particle size of the aggregate. FIG. 4A is a microscope photograph when the surface is scratched by the tip of a kitchen knife, and FIG. 4B is an SEM cross-sectional photograph in the same case. There are various things that damage the top plate of the kitchen, such as tableware such as forks, bowl bottoms, and pot bottoms, but I chose the kitchen knife scratch as the one that scratches the deepest. The knives form scratches as shown in FIG. 4 (a), but when the width was measured after making three scratches, the average was 142.4 μm. Here, as shown in FIG. 4B, if the particle size of the aggregate 154 is smaller than the width of the wound, the aggregate 154 may be scooped out and peeled off. Therefore, in order to ensure the durability of the top plate 110, it can be seen that the particle size of the aggregate 154 is preferably 150 μm or more.

Further, in order to secure the hardness of the top plate 110 (the hardness of the resin member 150), it is necessary to increase the amount of the aggregate 154 as the aggregate 154 becomes smaller. Then, since the fluidity of the resin at the time of molding is lost, problems such as clogging at the time of injection into the mold and damage to the mold occur. Therefore, in order to ensure the manufacturing conditions, it is preferable that the particle size of the aggregate 154 is increased to some extent so as not to reduce the fluidity. However, if the particle size of the aggregate 154 is made too large, the fluidity of the resin will be lost.

FIG. 5 is a diagram illustrating a range on the large diameter side of the particle size of the aggregate. When the aggregate 154 having the particle size shown in FIG. 5A was used, the top plate 110 could be molded without any trouble. The particle size at this time was 180 μm to 400 μm, the average was about 300 μm, and the standard deviation was 50.5. On the other hand, when the aggregate 154 having the particle size shown in FIG. 5 (b) was used, the resin did not spread in the mold and gaps and voids were formed. Further, it is considered that the aggregate 154 had settled on one side and was unevenly distributed (poor dispersion) because the top plate after curing was warped. The particle size at this time was 540 μm to 1550 μm, the average was about 900 μm, and the standard deviation was 253.3. Therefore, if the particle size is 500 μm or less, it is considered that molding defects can be prevented.

From the above, it can be seen that the particle size of the aggregate 154 is preferably 300 μm on average, and further preferably in the range of 150 μm to 500 μm. The aggregate 154 having an average particle size of 300 μm is a large-diameter grain that can be clearly distinguished from the filler 156 conventionally added to artificial marble.

The distance between the aggregates 154 is preferably 140 μm or less. As mentioned above, the average scratches on the kitchen knife were 142.4 μm. Therefore, in order for the kitchen knife not to penetrate deeply into the resin, it is necessary that the distance between the aggregates is narrower than the width of the scratch on the kitchen knife. Therefore, the distance between the aggregates 154 is preferably 140 μm or less, in other words, the density of the aggregates 154 is preferably set to be such a distance.

In the SEM cross-sectional photograph shown in FIG. 4B, there are some places where the interval is wider than 142.4 μm. However, this is because FIG. 4 (b) shows only one cross section, and other aggregates 154 are present in the depth direction even in places where the intervals are wide. Then, in the three-dimensional direction, the distance between the aggregates 154 is within 140 μm.

Since the large-diameter aggregate 154 is dispersed, even if the resin member 150 as the base material is scraped by contact with the cooker 102 (see FIG. 1), the aggregate 154 is harder than the resin member 150. Can be prevented from further scraping of the resin member 150 by exposing the resin member 150.

In particular, in the present embodiment, the aggregate 154 is colored in a color (similar color) similar to that of the resin member 150 of the base material. As a result, the aggregate 154 exposed from the resin member 150 becomes inconspicuous. Therefore, it is possible to suitably maintain the aesthetic appearance of the top plate 110 made of the resin member.

As described above, the aggregate 154 is colored in a color similar to that of the resin member 150, but if the particle size is too large, the coloring does not penetrate to the core of the aggregate 154, and when the aggregate 154 is scraped, the uncolored portion May be exposed. However, by setting the particle size of the aggregate 154 to 500 μm or less, the aggregate 154 can be sufficiently colored to the inside. Therefore, the aggregate 154 can be reliably colored up to the core, and the uncolored portion can be suitably prevented from being exposed.

Further, in the present embodiment, as shown in FIG. 2A, the aggregate 154 is uniformly dispersed throughout the resin member 150. When the resin member 150 in which the aggregate 154 is dispersed is molded, the resin member 150 shrinks, but the aggregate 154 does not shrink. Therefore, when the aggregate is unevenly contained in a part of the resin member 150, for example, the surface portion, the shrinkage is small in the surface portion and large shrinkage occurs in the other portion. Then, when a large member such as 110 of the top plate is molded by the resin member 150, warpage occurs. On the other hand, by uniformly dispersing the aggregate 154 over the entire resin member 150, it is possible to suitably prevent warpage when a large member such as the top plate 110 is molded by the resin member 150. ..

FIG. 2B is a diagram illustrating the configuration of a conventional artificial marble. The surface 150b of the resin member 150 is flat and has a matte finish without gloss. No aggregate is contained in the resin member, and only the small-diameter filler 156 is dispersed throughout the resin member 150.

FIG. 6 is a diagram for explaining the performance evaluation results of Examples and Comparative Examples. As an example, as shown in FIG. 2A, a top plate 110 formed by a resin member 150 having an irregular uneven surface treated and an aggregate 154 dispersed in the resin member 150 is used. Using. As a comparative example, as shown in FIG. 2B, a top plate made of artificial marble whose surface was matted and whose aggregate was not dispersed was used.

As shown in FIG. 6, the top plate 110 of the example has a higher pencil hardness and Mohs hardness than the top plate of the comparative example. It is considered that this is because the large-diameter aggregate 154 is dispersed in the base material of the resin member 150 on the top plate 110 of the embodiment. As described above, since the top plate 110 of the embodiment has high hardness, it is possible to suitably prevent scraping due to contact with the cooker 102.

FIG. 7 is a diagram illustrating details of scratch resistance. 7 (a) to 7 (c) are views of observing the surface of the top plate 110 of the example, and FIGS. 7 (d) to 7 (f) are views of observing the surface of the top plate of the comparative example. .. In the top plate 110 of the embodiment shown in FIG. 7A, the aggregate 154 is dispersed throughout and the surface is unevenly processed. The surface of the top plate of the comparative example shown in FIG. 7D is matted.

As shown in FIG. 6, the top plate 110 of the example has higher scratch resistance than the top plate of the comparative example. As shown in FIG. 7 (b), the surface scratches on the top plate 110 of the example are not conspicuous, but as shown in FIG. 7 (e), the top plate of the comparative example has obvious scratches on the surface. It is happening. From this, by applying unevenness processing to the surface as in the embodiment, the contact area with the cooker 102 is reduced to prevent scratches, and the aggregate 154 increases the hardness of the top plate 110. It can be understood that scratches due to contact with the cooker 102 can be reduced. Further, as shown in FIG. 7 (c), it can be seen that by coloring the aggregate 154 in a color similar to that of the resin member 150, the scratches as shown in FIG. 7 (f) can be made inconspicuous.

FIG. 8 is a diagram illustrating details of high heat pot resistance. 8 (a) to 8 (b) are views of observing the surface of the top plate 110 of the example, and FIGS. 8 (c) to 8 (d) are views of observing the surface of the top plate of the comparative example. .. In the top plate 110 of the embodiment shown in FIG. 8A, the aggregate 154 is dispersed throughout and the surface is unevenly processed. The surface of the top plate of the comparative example shown in FIG. 8C is matted.

As shown in FIG. 8 (a), on the top plate 110 of the example, the trace of the pot when the high temperature pot is placed cannot be confirmed, but as shown in FIG. 8 (c), the top plate of the comparative example has no trace. , The trace of the pot when placed at high temperature can be clearly observed. From this, it can be understood that it is possible to reduce the contact area with the high-temperature cooker 102 and make it difficult for the pot traces to be generated by applying the uneven processing to the surface as in the embodiment.

In the above embodiment, an example in which the aggregate 154 is dispersed on the top plate 110 of the kitchen 100 is shown. However, the present invention is not limited to this, and may be applied to the sink 116, or may be applied to both the top plate 110 and the sink 116. Furthermore, it may be applied to the front plate of the drawer of each cabinet.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the claims, which naturally belong to the technical scope of the present invention. Understood.

The present invention can be used for a resin member used for a top plate of a system kitchen and the like, and for a system kitchen provided with the resin member.

100 ... kitchen, 102 ... cooker, 110 ... top plate, 112 ... stove, 114 ... cooking space, 116 ... sink, 120 ... stove cabinet, 130 ... base cabinet, 140 ... sink cabinet, 150 ... resin member, 150a ... surface 154 ... Aggregate, 156 ... Filler

Claims (6)

A resin member in which aggregate is dispersed in a resin base material.
The surface is roughened,
A resin member characterized in that the aggregate is colored in a color similar to that of the base material. The resin member according to claim 1, wherein the aggregate has an average particle size of 300 μm. The resin member according to claim 1 or 2, wherein the distance between the aggregates is 140 μm or less. The resin member according to any one of claims 1 to 3, wherein the unevenness treatment is a rock surface tone having an irregular shape. The resin member according to any one of claims 1 to 4, wherein the aggregate is uniformly dispersed throughout the resin member. A system kitchen in which the resin member according to any one of claims 1 to 5 is provided on a top plate, a sink, or both.