Interior structure of food factory

Abstract

To provide an interior structure of a food factory that can suppress the occurrence of condensation even in a high humidity environment.SOLUTION: An interior structure of a food factory comprises a base frame fixed to an inner wall surface, a plurality of interior decorative materials fixed to the base frame and arranged to cover the inner wall surface, and a resin sheet arranged between the inner wall surface and the interior decorative materials. The interior decorative materials have at least a base layer containing aluminum, and a hydrophilic layer arranged on one side of the base layer having a thickness of 1.5 μm to 100 μm that contains a hydrophilic resin.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an interior structure of a food factory that is suitable for areas where condensation is likely to occur. [Background technology]

[0002] In factories and workshops where food is processed and cooked (hereinafter simply referred to as food factories), large amounts of generated water vapor can condense on ceilings and sidewalls, causing condensation. This condensation can lead to the growth of mold. There is also concern that food could be contaminated by the condensed water droplets that have entrained airborne pollutants. To address these issues, interior decorative materials that can suppress condensation even in high-humidity environments are known.

[0003] For example, Patent Documents 1 to 4 disclose bathroom ceiling panels that can suppress the occurrence of condensation. These ceiling panels are said to be able to suppress the occurrence of condensation even in high-humidity environments by forming a hydrophilic coating on the outermost surface. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Unexamined Patent Publication No. 55-139258 [Patent Document 2] Japanese Patent Application Publication No. 55-139259 [Patent Document 3] Japanese Patent Application Laid-Open No. 2000-026634 [Patent Document 4] Patent No. 4373717 Summary of the Invention [Problem to be solved by the invention]

[0005] However, conventional ceiling panels such as those disclosed in Patent Documents 1 to 4 did not necessarily have sufficient condensation prevention capabilities. For this reason, in food factories where a large amount of water vapor is generated during cooking, etc., they were unable to provide sufficient condensation prevention capabilities, and concerns remained that condensed water droplets would fall onto food, etc.

[0006] The present invention has been made in consideration of the above-mentioned problems, and aims to provide an interior structure for a food factory that can suppress the occurrence of condensation even in a high-humidity environment. [Means for solving the problem]

[0007] The decorative material for interior use of the present invention has the following configuration. (1) The interior structure of a food factory according to the first aspect of the present invention comprises a base frame fixed to the inner wall surface of the food factory, a plurality of interior decorative materials fixed to the base frame and arranged to cover the inner wall surface, and a resin sheet arranged between the inner wall surface and the interior decorative materials, wherein the interior decorative materials have at least a base layer containing aluminum and a hydrophilic layer having a thickness of 1.5 μm or more and 100 μm or less, which is arranged on one side of the base layer and contains a hydrophilic resin.

[0008] (2) A second aspect of the present invention relates to an interior structure for a food factory, in which, in the first aspect, the inner wall surface is a ceiling surface, and the base frame is suspended from the ceiling surface via a suspension member.

[0009] (3) In the second aspect of the interior structure of a food factory according to the present invention, a molding member is arranged between the side wall surface that intersects with the ceiling surface and the end of the interior decorative material.

[0010] (4) A fourth aspect of the present invention relates to an interior structure for a food factory, which is the second aspect, and wherein the ceiling surface is inclined relative to a horizontal plane.

[0011] (5) The interior structure of a food factory according to the fifth aspect of the present invention is any one of the first to fourth aspects, wherein the interior decorative material is arranged on the other side of the base material layer and further has an insulating layer made of foamed resin.

[0012] (6) The sixth aspect of the present invention relates to an interior structure for a food factory, which is any one of the first to fifth aspects, wherein the contact angle of the hydrophilic layer of the interior decorative material is 45° or less.

[0013] (7) A seventh aspect of the present invention relates to an interior structure for a food factory according to any one of the first to sixth aspects, wherein the resin sheet is a polyethylene resin sheet. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a schematic cross-sectional view showing an interior decorative material that constitutes the interior structure of a food factory of the present invention. [Figure 2] 1 is a schematic diagram showing the interior structure of a food factory according to an embodiment of the present invention. [Figure 3] FIG. 1 is a schematic diagram showing the configuration of the peripheral portion of an interior decorative material in the interior structure of a food factory. [Figure 4] FIG. 1 is a schematic diagram showing the configuration of the ends of arranged interior decorative materials in the interior structure of a food factory. [Figure 5] 10 is a schematic diagram showing another configuration of the ends of arranged interior decorative materials in the interior structure of a food factory. FIG. [Figure 6] FIG. 1 is an explanatory diagram showing the order in which interior decorative materials are arranged when constructing the interior structure of a food factory. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, with reference to the drawings, an interior structure of a food factory according to one embodiment of the present invention will be described. Note that the embodiment shown below is specifically described to provide a better understanding of the gist of the invention, and does not limit the present invention unless otherwise specified. Furthermore, the drawings used in the following description may show essential parts enlarged for the sake of convenience in order to make the features of the present invention easier to understand, and the dimensional proportions of each component may not necessarily be the same as those in reality.

[0016] [Structure of interior decorative materials] First, the structure of an interior decorative material used in the interior structure of a food factory according to one embodiment of the present invention will be described. FIG. 1 is a schematic cross-sectional view showing an example of an interior decorative material constituting the interior structure of a food factory according to the present invention. The interior decorative material 10 comprises at least a base layer 11 and a hydrophilic layer 13 disposed on one surface 11a of the base layer 11. A decorative layer 12 may be disposed between the base layer 11 and the hydrophilic layer 13. Furthermore, it is preferable that a heat insulating layer 15 and a thin aluminum layer 16 are disposed on the other surface 11b of the base layer 11 in this order.

[0017] The interior decorative material 10 of the present invention used in the interior structure of a food factory meets the standards for non-combustible materials set forth in Article 2, Paragraph 9 of the Building Standards Act of Japan. That is, among building materials, it is a material that conforms to the technical standards set forth in the Cabinet Order regarding non-combustible performance (meaning that it will not burn due to the heat of a normal fire, and other performances set forth by Cabinet Order), and is set forth by or certified by the Minister of Land, Infrastructure, Transport and Tourism. Alternatively, it meets the standards for quasi-non-combustible materials set forth in Article 1, Paragraph 5 of the Enforcement Order of the Building Standards Act. That is, among building materials, it is a material that conforms to the technical standards set forth in the Cabinet Order regarding quasi-non-combustible performance (meaning that it will not burn due to the heat of a normal fire, and other performances set forth by Cabinet Order), and is set forth by or certified by the Minister of Land, Infrastructure, Transport and Tourism.

[0018] (base material layer) The substrate layer 11 is a thin plate made of aluminum or an alloy containing aluminum. The thickness of the substrate layer 11 may be, for example, in the range of 0.2 mm to 0.6 mm. The surface of the substrate layer 11 may be a smooth surface such as a mirror finish, or a rough surface.

[0019] (decorative layer) The decorative layer 12, which is optionally provided, is a decorative layer formed by baking a paint containing acrylic resin or polyester resin onto one surface 11a of the base layer 11. The decorative layer 12 can be formed in any desired color and design using the paint. This allows for a design effect that matches the atmosphere of the installation location when the interior decorative material 10 is viewed from the outside through the hydrophilic layer 13. The decorative layer 12 may have a thickness in the range of 10 μm to 40 μm, for example.

[0020] (hydrophilic layer) The hydrophilic layer 13 is made of a hydrophilic material, particularly an organic hydrophilic material. As the organic hydrophilic material, a film containing a binder having a hydrophilic group is preferred from the viewpoint of preventing falling water due to condensation, etc. Preferred examples of the hydrophilic group include a sulfonic acid group or a salt thereof, a hydroxyl group, a carboxy group or a salt thereof, a poly(oxyalkylene) group, and an ammonium salt.

[0021] Specific examples of organic hydrophilic materials that constitute the hydrophilic layer 13 include a film containing a polymer of a bifunctional (meth)acrylate having a sulfonic acid group or its salt; a film containing a polymer of a vinyl monomer having an N-methylol group or an N-alkoxymethylol group, a vinyl monomer having a sulfonic acid group, and an alkyl (meth)acrylate monomer; a film containing a polymer having a hydrophilic group and an alkoxysilyl group; and the like.

[0022] The thickness of the hydrophilic layer 13 may be in the range of 1.5 μm to 100 μm, preferably in the range of 1.5 μm to 10 μm, and more preferably in the range of 2.0 μm to 5.0 μm. If the thickness of the hydrophilic layer 13 is 1.5 μm or more, the generation of water droplets due to condensation or the like can be sufficiently suppressed. If the thickness of the hydrophilic layer 13 is 100 μm or less, for example, when forming the hydrophilic layer 13 from an ultraviolet curable resin, it is easy to apply the hydrophilic layer 13 to the decorative layer 12.

[0023] Furthermore, the contact angle (wettability), which is the standard for the hydrophilicity of the hydrophilic layer 13 in the present invention, is 45° or less. The contact angle is the angle between the tangent of a droplet and the solid surface, and if the contact angle is approximately 45° or less, it is considered that hydrophilicity is exhibited in the present invention.

[0024] In addition to the hydrophilic materials described above, the hydrophilic layer 13 may further contain an antifungal agent, an antibacterial agent, an antiviral agent, a matting material, etc. By including an antifungal agent, an antibacterial agent, or an antiviral agent, it is possible to inhibit the occurrence and proliferation of mold, bacteria, and viruses caused by moisture adhering to the hydrophilic layer 13. Furthermore, by including a matting material, it is possible to suppress the shine (gloss) of the surface of the hydrophilic layer 13 and further inhibit the adhesion of grease such as fingerprints, thereby maintaining the aesthetic appearance.

[0025] It is also preferable that the surface of the hydrophilic layer 13 has a fine uneven structure (rough surface) to increase the surface area and further improve the hydrophilic function.

[0026] (insulating layer) The heat insulating layer 15, which is optionally provided, is a functional layer that imparts heat insulating properties to the interior decorative material 10 of this embodiment, and is made of foamed resin (porous resin). Examples of foamed resin that makes up the heat insulating layer 15 include foamed polyurethane, foamed polystyrene, foamed polyethylene, phenolic foam, and foamed polyvinyl chloride. In this embodiment, foamed polyurethane is used as the heat insulating layer 15.

[0027] The thickness of the insulating layer 15 may be, for example, in the range of 5.0 mm to 20 mm, preferably in the range of 7.0 mm to 10 mm. By making the thickness of the insulating layer 15 in the above range, the insulating properties required for keeping the temperature inside the food factory can be ensured and peeling of the insulating layer 15 can be prevented.

[0028] The mass of the foamed resin constituting the heat insulating layer 15 is 0.3 kg / m 2 More than 0.5kg / m 2 The density of the foamed resin should be within the following range: 3 More than 50kg / m 3 The following ranges are sufficient. By setting the mass and density of the foamed resin that makes up the insulating layer 15 within the above-mentioned ranges, it is possible to achieve a reduction in the weight of the interior decorative material 10 while maintaining the insulating performance of the insulating layer 15.

[0029] (thin aluminum layer) The thin aluminum layer 16, which is optionally provided, may be a foil or sheet made of aluminum or an alloy containing aluminum. Such a thin aluminum layer 16 protects the back side of the interior decorative material 10. The thickness of the thin aluminum layer 16 may be, for example, in the range of 0.01 mm to 0.1 mm.

[0030] [Food factory interior structure] The interior structure 20 of the food factory of this embodiment is constructed using the interior decorative material 10 having the above-described configuration. In the following description of the food factory interior structure 20 of this embodiment, the ceiling surface and inner side surfaces of a building will be used as examples of the interior wall surfaces on which the interior decorative material 10 is formed. That is, an example will be given in which the interior decorative material 10 is provided as a ceiling decorative board on the underside of the ceiling surface, and the interior decorative material 10 is provided as a wall board on the inner side surfaces that extend in the vertical direction.

[0031] FIG. 2 is a schematic diagram showing the interior structure of a food factory according to one embodiment of the present invention. The interior structure 20 of the food factory in this embodiment comprises at least a base frame 21 fixed to the ceiling surface (inner wall surface) W1, which is the inner wall surface of the food factory, a base frame 22 fixed to the inner side surface (inner wall surface) W2, which is a vertical wall surface, a resin sheet 25, and the aforementioned interior decorative material 10.

[0032] (Base frame) The base frames 21 and 22 are beam-shaped members made of, for example, an aluminum alloy. Of these, base frame 21 is supported at one end by a plurality of suspension bolts (hanging members) 23 fixed to ceiling surface W1 and suspended vertically at the other end, and is composed of a plurality of first frames 21a extending in the X direction in Fig. 2, and a plurality of second frames 21b supported by first frames 21a and extending in the Y direction perpendicular to first frames 21a. As a result, base frame 21 of this embodiment forms a lattice-shaped frame body 24 suspended from ceiling surface W1 via suspension bolts 23 with a predetermined gap maintained.

[0033] The ceiling surface W1 referred to here may be the underside of the interior side of the roof panel if the food factory is a single-story building, or the underside of the upper floor floor slab if the food factory is a reinforced concrete building.

[0034] Furthermore, the ceiling surface W1 may be a flat roof that extends horizontally, or a sloped roof that is inclined at a predetermined angle relative to the horizontal. If the ceiling surface W1 is inclined, the lengths of the hanging bolts 23 adjacent in the inclination direction can be adjusted to keep the base frames 21, 22 horizontal, and the interior decorative material 10 can be arranged so that it extends horizontally. Furthermore, the ceiling surface W1 including the interior decorative material 10 may also be arranged so that it is inclined relative to the horizontal. If the ceiling surface W1 is inclined, it is preferable that it be inclined in a direction parallel to the long side L1 of the interior decorative material 10.

[0035] On the other hand, the base frame 22 is fixed with screws or the like to the inner surface W2 that forms the inner surface of the exterior wall or partition wall of the food factory building, and is composed of multiple frames extending in the vertical direction (Z direction).

[0036] (resin sheet) A moisture-proof and heat-insulating resin sheet, such as a low-density polyethylene sheet, can be used as the resin sheet 25. Such a resin sheet 25 prevents moisture propagating from the ceiling surface W1 and the interior surface W2 from entering the room, and also suppresses temperature fluctuations inside the room due to changes in the outside air temperature.

[0037] On the ceiling surface W1 side, the resin sheet 25 may be formed using, for example, acrylic tape so as to cover the underside of the base frame 21. On the inner surface W2 side, the resin sheet 25 may be attached using, for example, acrylic tape so as to cover the inner surface W2.

[0038] It is also preferable to provide a waterproof plywood between the resin sheet 25 and the inner surface W2 on the inner surface W2 side, thereby improving moisture resistance, heat retention, and sound insulation.

[0039] (Interior decorative materials) When the interior decorative material 10 having the above-described structure is applied to the interior structure 20 of a food factory of this embodiment, it is formed into a rectangle with a long side L1 of about 1800 mm to 4000 mm and a short side L2 of about 200 mm, for example.

[0040] On the ceiling surface W1 side, the interior decorative materials 10 are lined up closely along the base frame 21 and fixed to the base frame 21 with screws, for example. On the inside surface W2 side, the interior decorative materials 10 are lined up closely along the base frame 22 with the long sides L1 of the interior decorative materials 10 aligned in the vertical direction (Z direction), and fixed to the base frame 22 with screws, for example.

[0041] As shown in Figure 3, of the interior decorative materials 10 arranged on the ceiling surface W1 side, molding members 26 are formed at the four edges facing the inner surface W2 between the non-combustible decorative boards 31 attached to the inner surface W2 with adhesive layers 32. The molding members 26 are composed of a base member 26a fixed to the base frame 21 and a cover member 26b that covers the edges of the interior decorative material 10. The molding members 26 may be fixed to the base frame 21b, for example, with screws or the like.

[0042] Such molding members 26 fill the gaps formed on the inner surface W2 on all four sides of the interior decorative material 10 arranged on the ceiling surface W1 side. Forming the molding members 26 prevents moisture and the like from penetrating from the peripheral portion of the interior decorative material 10 and improves the aesthetic appearance of the finished product.

[0043] The molding member 26 may be formed from a resin, such as high-moisture polyethylene or polyvinyl chloride resin, and furthermore, by containing an anti-mold agent, it is possible to suppress the growth of mold due to moisture, improve hygienic functionality, and maintain the aesthetic appearance for a long period of time.

[0044] In the example of Fig. 3, the inner surface W2 is covered with the non-combustible decorative panel 31, but the inner surface W2 may be covered with the interior decorative material 10, similar to the ceiling surface W1. This is not a limitation.

[0045] As shown in Figure 4, cutout portions 10C1 and 10C2 are formed at one end and the other end of the short side L2 of the interior decorative material 10, respectively, and further, mating portions 27a and 27b are formed extending from these cutout portions 10C1 and 10C2, respectively, and overlap each other when the interior decorative material 10 is arranged.

[0046] When the interior decorative materials 10 are arranged and formed, these fitting portions 27a, 27b seal the gaps between adjacent interior decorative materials 10 to prevent moisture and the like from entering, and also conceal screws and the like so that they cannot be seen from below, improving the aesthetic appearance of the finished product.

[0047] In this embodiment, the mating portions 27a, 27b are formed, for example, from aluminum plates so that they do not come into contact with each other. However, as shown in FIG. 5, for example, mating members 28a, 28b can be formed from resin or the like separately from the interior decorative material 10, and these mating members 28a, 28b can be joined to the gaps between the interior decorative materials 10 to seal the gaps between the interior decorative materials 10.

[0048] The following describes a method for installing the ceiling surface W1 side of the food factory interior structure 20 configured as described above. First, one end of each of the multiple hanging bolts 23 is fixed to bolt holes that have been embedded and formed at predetermined intervals in the ceiling surface W1.

[0049] Next, a plurality of base frames 21 extending in the X direction are fixed so as to be supported by the other ends of the plurality of hanging bolts 23. Next, a plurality of base frames 22 are fixed along the Y direction perpendicular to the longitudinal direction of the plurality of base frames 21, thereby forming a lattice-shaped frame body 24 below the ceiling surface W1.

[0050] Next, a resin sheet 25 made of, for example, a low-density polyethylene sheet material is fixed to the frame body 24 using, for example, acrylic tape so as to cover the frame body 24. If it is not possible to cover the entire lower side of the frame body 24 with one resin sheet 25, multiple resin sheets 25 can be attached together so that their ends overlap by a certain length.

[0051] Next, the base member 26a of the molding member 26 is fixed to the base frame 2 around the ceiling and wall. Next, multiple interior decorative materials 10 are arranged in order so as to overlap this resin sheet 25, and are fixed to the base frame 21 of the frame body 24 using, for example, screws. At this time, in this embodiment, as shown by the numbers in Fig. 6, three interior decorative materials 10 are arranged in order along the long side L1 of the interior decorative materials 10 and the first row is fixed, and then the second row of interior decorative materials 10 in the direction of the short side L2 of the interior decorative materials 10 is fixed, and by repeating this process, the entire ceiling surface W1 is covered with multiple interior decorative materials 10.

[0052] Thereafter, the cover member 26b of the molding member 26 is fitted onto the peripheral edge of the arranged interior decorative material 10 to cover the end of the interior decorative material 10. Through the above construction process, the underside (indoor side) of the ceiling surface W1 is covered with a plurality of interior decorative materials 10, thereby forming an interior suspended ceiling.

[0053] According to the food factory interior structure 20 of this embodiment configured as described above, the hydrophilic layer 13 containing a hydrophilic resin and having a thickness of 1.5 μm to 100 μm formed on the outermost surface of the interior decorative material 10 makes it difficult for water vapor to condense, thereby preventing water vapor from turning into droplets and falling. This makes it possible to prevent food contamination caused by water droplets falling on food in food factories. This increases the comfort level inside food factories and eliminates concerns about the hygiene of the food being produced.

[0054] Although the embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. In the above-described embodiments, installation on the ceiling surface W1 was described, but installation on the inner surface W2 as well, or installation on the inner surface W2 alone, is also possible. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are within the scope and spirit of the invention, as well as the scope of the invention and its equivalents as set forth in the claims. [Explanation of symbols]

[0055] 10...Interior decorative materials 11...Base material layer 12...Decorative layer 13…Hydrophilic layer 14...Buffer layer 15...Insulating layer 16...Aluminum thin layer 20...Food factory interior structure 21, 22...Base frame 23... Hanging bolt (hanging member) 24…Frame body 25...Resin sheet 26...Side fittings 27a, 27b...Mating part 28a, 28b...fitting members W1: Ceiling surface (inner wall surface) W2: Inner surface (inner wall surface)

Claims

1. The food factory has a base frame fixed to an inner wall surface, a plurality of interior decorative materials fixed to the base frame and arranged to cover the inner wall surface, and a resin sheet arranged between the inner wall surface and the interior decorative materials, The interior decorative material is an interior structure for a food factory, and has at least a base layer containing aluminum and a hydrophilic layer containing a hydrophilic resin and having a thickness of 1.5 μm or more and 100 μm or less, which is arranged on one side of the base layer and is superimposed on the other side of the base layer.

2. 2. The interior structure of a food factory according to claim 1, wherein the inner wall surface is a ceiling surface, and the base frame is suspended from the ceiling surface via a suspension member.

3. 3. The interior structure of a food factory according to claim 2, wherein a molding member is disposed between a side wall surface intersecting with the ceiling surface and an end of the interior decorative material.

4. The interior structure of a food factory according to claim 2 , wherein the ceiling surface is inclined relative to a horizontal plane.

5. The interior structure of a food factory according to any one of claims 1 to 4, wherein the interior decorative material further comprises an insulating layer made of foamed resin, which is disposed on the other side of the base material layer.

6. The interior structure for a food factory according to claim 1 , wherein the hydrophilic layer of the interior decorative material has a contact angle of 45° or less.

7. The interior structure for a food factory according to claim 1 , wherein the resin sheet is a polyethylene resin sheet.

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