Stain-preventing sheet for range hood baffle plate

Abstract

To provide a sheet for preventing a reverse surface of a straightening plate for a range hood to which the straightening plate is attached from becoming dirty.SOLUTION: A dirt prevention sheet 10 is provided with a nonwoven fabric layer 11, a film layer 12, and an adhesive layer 13 between them. The nonwoven fabric layer 11 is located on the side of a range hood in an installation state and captures oily smoke and oil droplets. The film layer 12 is located on the side of the reverse surface of the straightening plate in the installation state and stops the oily smoke and oil droplets captured by the nonwoven fabric layer 11 from going through to the reverse surface of the straightening plate. The adhesive layer 13 is pasted to the reverse surface of the straightening plate by peeling a part of the film layer 12 off and exposing it in the installation state, and the dirt prevention sheet 10 is fixed so that it is not displaced. Thus, the reverse surface of the straightening plate is easily prevented from becoming dirty, and time and labor when cleaning the straightening plate can be reduced.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a sheet for preventing the back surface of a rectifying plate of a range hood with an attached rectifying plate from getting dirty.

Background Art

[0002] Range hoods installed above ranges such as system kitchens for ventilation are likely to have oil stains adhering due to cooking, and various attempts have been made to prevent dirt, such as installing a filter to cover the sirocco fan inside the range hood.

[0003] By the way, in recent years, a type of range hood with an attached rectifying plate has become popular. Referring to FIGS. 5 and 6, in this type of range hood 1, a flat rectifying plate 3 is installed with a predetermined gap directly below the opening of the hood body 2, that is, the intake port 2a, and intake is performed through this gap. By narrowing the size of the gap in this way, the air passing through here is accelerated, increasing the suction force.

[0004] As a general filter attached to the range hood 1 with such a rectifying plate 3, a grease filter 2f attached to the intake port 2a is known. In addition, as in Patent Document 1, a sheet-like filter made of a flame-retardant material such as glass fiber that is pushed in without a gap between the rectifying plate and the intake port of the range hood body has also been developed.

[0005] According to the filter of Patent Document 1, air containing oil fumes and the like sucked in from the gap between the rectifying plate and the range hood body passes through the filter and is filtered, and then is sent outdoors by the sirocco fan, so that the sirocco fan and the like are prevented from getting dirty.

Prior Art Documents

Patent Documents

[0006] [Patent Document 1] Japanese Patent Publication No. 2018-153751 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, as mentioned above, air containing oil fumes passes through the gap between the baffle plate and the range hood body, so the back of the baffle plate (the side facing the range hood body) becomes a kind of passageway for oil fumes, and is therefore inherently prone to oil fumes adhering to it. Furthermore, oil droplets that adhere to the edges of the air intake openings of the range hood body may drip down onto the underside of the baffle plate. In addition, some range hoods have an oil tray on the edge of the air intake opening to catch oil droplets that fall from the sirocco fan, but if the range hood is used for a long period of time, oil will accumulate in the oil tray and, if it overflows, oil droplets may similarly drip down onto the underside of the baffle plate.

[0008] As a result, oil stains accumulate not only on the sirocco fan and other components, but also on the underside of the baffle plate, although no attempts had been made to suppress this in the past. Generally, baffle plates are large in size, so cleaning them when they become dirty is time-consuming and laborious.

[0009] This is also true when using the filter described in Patent Document 1. Although the filter is in close contact with the area directly below the air intake on the back of the rectifier plate, and therefore can suppress some degree of soiling, the majority of the back of the rectifier plate remains exposed, and therefore cannot suppress soiling there. Furthermore, when using the filter described in Patent Document 1, the entire space of the predetermined gap between the air intake and the rectifier plate is filled with the filter, which may reduce the intake performance of the range hood.

[0010] Therefore, the problem to be solved by the present invention is to provide a new attempt to prevent the back surface of the baffle plate in a range hood equipped with a baffle plate from becoming dirty. [Means for solving the problem]

[0011] To solve the above-mentioned problems, the present invention provides a stain-preventing sheet that can be installed to cover the surface (back) of the rectifier plate of a range hood with a rectifier plate that faces the range hood body, and is configured to prevent air containing oil fumes drawn in through the gap from coming into contact with the surface (back) of the rectifier plate, and to catch oil stains that drip down from the side of the range hood body.

[0012] By configuring the range hood baffle plate's stain-preventing sheet in this way, it is easy to prevent the underside of the baffle plate from becoming dirty, thus reducing the time and effort required to clean the baffle plate. When the anti-fouling sheet becomes soiled to a certain extent, it can be removed from the back of the rectifier plate and discarded, and a new anti-fouling sheet can be installed on the back of the rectifier plate, thereby maintaining a clean state of the rectifier plate.

[0013] In the stain-preventing sheet for the baffle plate of a range hood according to the invention, it is preferable to adopt a configuration comprising: a nonwoven fabric layer located on the side of the range hood body when installed, which captures oil fumes and oil droplets; and a film layer located on the side of the back of the baffle plate when installed, which prevents the oil fumes and oil droplets captured by the nonwoven fabric layer from seeping through to the back of the baffle plate.

[0014] With this configuration, oil fumes and oil droplets are reliably captured by soaking into the nonwoven fabric layer, and these oil fumes and oil droplets are blocked by the film layer, preventing them from soiling the back surface of the rectifier plate, thus further preventing contamination of the rectifier plate.

[0015] In the stain-preventing sheet for the baffle plate of a range hood according to the invention, it is more preferable to further include an adhesive layer between the nonwoven fabric layer and the film layer, and to adopt a configuration that allows the sheet to be attached to the back surface of the baffle plate by peeling off a part of the film layer to expose the adhesive layer.

[0016] With this configuration, the dirt-preventing sheet can be easily fixed to the back of the rectifier plate, thus easily preventing the dirt-preventing sheet from shifting or coming off the back of the rectifier plate due to wind pressure or other factors during use. Also, even if a part of the film layer is peeled off during use, by leaving the film layer at the part where a large amount of oil droplets fall on the back surface of the rectifying plate, the blocking performance of the oil droplets by the film layer at that part can be maintained.

[0017] In the anti-fouling sheet for the rectifying plate of the range hood according to the invention, it is more preferable to adopt a configuration in which slits are formed in the film layer and it is possible to peel off the part from the slits of the film layer to the outer edge of the sheet.

[0018] With this configuration, since the operation of peeling off a part of the film layer to expose the adhesive layer can be easily performed without using a cutting tool such as a cutter, the convenience is improved.

[0019] In the anti-fouling sheet for the rectifying plate of the range hood according to the invention, it is more preferable to adopt a configuration in which a printed indication indicating the position of the slit is provided in the film layer.

[0020] With this configuration, since the position of the slit that is the starting point for peeling off the film layer becomes clear, the operation of peeling off a part of the film layer to expose the adhesive layer can be performed more easily, and thus the convenience is further improved.

[0021] In the anti-fouling sheet for the rectifying plate of the range hood according to the invention, it is preferable to adopt a configuration in which the adhesive layer has missing layers arranged in parallel at regular intervals in the longitudinal or transverse direction of the sheet, and it is possible to cut the sheet along these missing layers.

[0022] Since there are various aspect ratios and dimensions of the rectifying plates of commercially available range hoods, with this configuration, the sheet can be appropriately cut according to the aspect ratio and dimensions of the rectifying plate to be installed, so the convenience is improved. By cutting along the missing layer, the adhesive or the like of the adhesive layer does not adhere to the blades of cutting tools such as scissors or cutters, so it is possible to prevent the blades from getting dirty or the cutting performance from deteriorating. [Effect of the Invention]

[0023] Since the anti-fouling sheet according to the invention is configured as described above, it is possible to prevent the back surface of the flow rectifying plate of the range hood equipped with the flow rectifying plate from being soiled. [Brief Description of the Drawings]

[0024] [Figure 1] Plan view of the anti-fouling sheet of the embodiment [Figure 2] (a) is a cross-sectional view taken along the line A-A of FIG. 1, and (b) is a cross-sectional view taken along the line B-B of (a). [Figure 3] Perspective view of the anti-fouling sheet of the embodiment in a state where it is cut and a part of the film is peeled off [Figure 4] Perspective view of the anti-fouling sheet of the embodiment in a state where it is attached to the range hood with the flow rectifying plate opened [Figure 5] In the state where the anti-fouling sheet of the embodiment is attached to the range hood with the flow rectifying plate closed, (a) is an overall cross-sectional view, and (b) is an enlarged cross-sectional view of the main part. [Figure 6] Longitudinal cross-sectional view of the range hood with a flow rectifying plate [Mode for Carrying Out the Invention]

[0025] [[ID=??]] Hereinafter, embodiments of the present invention will be described while referring to the drawings. The anti-fouling sheet 10 of the embodiment shown in FIGS. 1 and 2 is attached to the back surface of the flow rectifying plate 3 of the range hood 1 as shown in FIGS. 3 to 5, and prevents the flow rectifying plate 3 from being soiled by oil fumes, oil droplets, etc. <00??120> As shown in FIGS. 1 and 2, the anti-fouling sheet 10 of the embodiment is rectangular in plan view, and has a three-layer structure composed of a non-woven fabric layer 11, a film layer 12, and an adhesive layer 13 interposed between the non-woven fabric layer 11 and the film layer 12 in the thickness direction. Since the film layer 12 is transparent, the adhesive layer 13 can be seen through in FIG. 1. When in use, the nonwoven fabric layer 11 faces the side of the hood body 2, and the film layer 12 faces the side of the rectifier plate 3, and the unit is placed on the back surface of the rectifier plate 3 and fixed in place by the adhesive layer 13.

[0027] The length and width dimensions of the rectangular stain-resistant sheet 10 are not particularly limited, but examples that match the dimensions of a typical rectifier plate 3 include a length of 25 cm to 51 cm and a width of 30 cm to 85 cm. If the dimensions are too large, it becomes inconvenient to handle, and if it is to be installed on the back of the rectifier plate 3, it will require a large cut, which is troublesome. If the dimensions are too small, there will be exposed areas on the back of the rectifier plate 3, making it impossible to adequately prevent dirt from accumulating there.

[0028] The nonwoven fabric layer 11 shown in Figure 2 is made of nonwoven fabric. Oil fumes adhere to this nonwoven fabric, and oil droplets dripping from the side of the range hood body 2 soak into it, trapping the dirt. The material of the nonwoven fabric is not particularly limited, and examples include synthetic fibers such as polyester fibers, polyamide fibers, and polyimide fibers, as well as natural fibers. However, nonwoven fabrics made of polyester fibers are preferred because they have excellent oil droplet and oil mist capture properties and can be manufactured inexpensively. Furthermore, it is preferable to apply a flame-retardant treatment to the nonwoven fabric, such as by blending a flame retardant into the fibers or by attaching a flame retardant to the surface of the nonwoven fabric, in order to impart flame retardancy. The manufacturing method for nonwoven fabrics is not particularly limited, and examples include thermal bonding, chemical bonding, and spunbonding.

[0029] The thickness of the nonwoven fabric layer 11 is not particularly limited, but is preferably in the range of 0.5 to 5 mm, and more preferably in the range of 1 to 2 mm. Similarly, the basis weight is not particularly limited, but is preferably in the range of 20 to 60 g / m². 2 A more preferable range is 30-50 g / m². 2 That is the case. Within these limits, the nonwoven fabric layer 11 will not be too thin, impairing its ability to retain dirt, nor will it be too thick, making it bulky and impairing the air intake performance of the range hood 1.

[0030] The film layer 12 shown in Figures 1 and 2 is made of a synthetic resin film. The presence of the highly watertight and liquidtight film layer 12 prevents oil fumes and oil droplets that have soaked into the nonwoven fabric layer 11 from reaching the back surface of the rectifier plate 3, thereby preventing the rectifier plate 3 from becoming contaminated. The material of the film is not particularly limited, and examples include polyethylene terephthalate, polypropylene, and polyethylene. However, PET film, which has high heat resistance, is preferred as it is suitable for the high-temperature environment inside a range hood. Flame retardancy may also be added to the film layer 12.

[0031] The thickness of the film layer 12 is not particularly limited, but is preferably in the range of 0.2 to 2 mm, and more preferably in the range of 0.3 to 1 mm. Within these limits, the film layer 12 will not be too thin, causing it to tear and impairing its ability to block dirt, nor will the film layer 12 be too thick, making it bulky and impairing the air intake performance of the range hood 1.

[0032] As shown in Figure 1, upper slits 12a and lower slits 12b are formed at the top and bottom of the film layer 12, respectively, which traverse the anti-stain sheet in the left-right direction. These upper slits 12a and lower slits 12b divide the stain-preventing sheet 10 into three sections: the upper part 10a, the lower part 10b, and the middle part 10c which makes up the majority of the sheet.

[0033] Furthermore, using the upper slit 12a and lower slit 12b as starting points, the upper part 10a from the upper slit 12a to the upper edge of the stain-preventing sheet 10, and the lower part 10b from the lower slit 12b to the lower edge of the stain-preventing sheet 10, can be peeled off from the stain-preventing sheet 10. As shown in the figure, the width of the upper part 10a, that is, the distance between the upper slit 12a and the upper edge of the stain-preventing sheet 10, is narrower than the width of the lower part 10b, that is, the distance between the lower slit 12b and the lower edge of the stain-preventing sheet 10, and is about 1 / 3 to 1 / 2 of the width of the lower part 10b.

[0034] A printed marking 12c is formed on the surface of the film layer 12, indicating the positions of the upper and lower slits 12a and 12b. The slits 12a and 12b themselves are very narrow and difficult to see, but the presence of the printed markings 12c makes it easy to confirm the positions of the slits 12a and 12b, and makes it easier to peel off the upper 10a and lower 10b film layers 12 when using the stain-preventing sheet 10. In the diagram, the printed indication 12c is shown as an arrow, but it is not limited to this. For example, lines can be printed on the film layer 12 parallel to the slit at a predetermined distance (approximately 1.0 mm to 10 mm) from the slit on both sides of the slit. In this way, two parallel lines centered on the slit are displayed as the printed indication 12c, making it easy to see that the slit is located at the center of the two parallel lines.

[0035] The adhesive layer 13 shown in Figures 1 and 2 consists of an adhesive portion 13a made of adhesive arranged in a predetermined pattern in a plan view between the nonwoven fabric layer 11 and the film layer 12. Furthermore, as shown in the figure, the adhesive layer 13 has parallel gaps at regular intervals between them, and the missing portions 13b that extend in the vertical direction where there is no adhesive are formed. Furthermore, in the lower part 10b, missing portions 13b are formed in parallel in the vertical direction of the adhesive layer 13 at regular intervals, extending in the left-right direction where there is no adhesive.

[0036] By cutting along these missing sections 13b, the entire surface of the stain-preventing sheet 10 in the left-right direction, and the lower part 10b in the up-down direction, it is easy to adjust the dimensions of the stain-preventing sheet 10 to match the dimensions of the rectifier plate 3. When cut along the missing portion 13b, the adhesive is designed so that it does not adhere to the blade of a cutting tool such as a cutter. Since the film layer 12 is transparent, it is easy to see the missing portion 13b of the adhesive layer 13 through the film layer 12.

[0037] In the upper 10a and lower 10b portions of the stain-resistant sheet 10, the proportion of adhesive in the adhesive layer 13 is larger compared to the middle portion 10c. In other words, in the upper part 10a and the lower part 10b, the adhesive part 13a has a rectangular shape with the inside filled with adhesive, but in the middle part 10c, the adhesive part 13a has a ring shape with adhesive only on the outer edge. The upper part 10a and the lower part 10b have a larger proportion of adhesive, thereby increasing their adhesion force to the back surface of the rectifier plate 3, which will be described later. Furthermore, since the majority of the intermediate portion 10c is not attached to the back surface of the rectifier plate 3, the amount of adhesive used is reduced to the extent that the laminated state of the film layer 12 and the nonwoven fabric layer 11 can be maintained, thereby keeping costs down. In addition, since the film layer 12 is prone to thermal shrinkage, the fact that the film layer 12 is laminated to the nonwoven fabric layer 11 via the adhesive layer 13 allows the adhesive layer 13 to suppress the shrinkage of the film layer 12. This prevents the stain-preventing sheet 10 from rippling or bending even when used inside a range hood where high temperatures are reached. The adhesive layer 13 has adhesive sections 13a in most areas corresponding to the upper and lower slits 12a and 12b, thereby increasing its adhesive strength. This prevents the boundaries between the upper section 10a and the middle section 10c, and between the lower section 10b and the middle section 10c, from lifting up when it is attached to the back surface of the rectifier plate 3, which will be described later.

[0038] The type of adhesive that makes up the adhesive layer 13 is not particularly limited, but examples include urethane-based adhesives, acrylic-based adhesives, and silicone-based adhesives. However, urethane-based adhesives are preferred because they have excellent re-peelability and do not leave adhesive residue when peeled off from the rectifier plate 3. It is also preferable to impart flame retardancy to the adhesive by adding flame retardant components. The area ratio of the adhesive layer 13 to the entire surface of the stain-resistant sheet 10 is not particularly limited, but examples include 10% to 60%. Within these ranges, it is possible to prevent the adhesive strength from being insufficient due to an area ratio that is too small, the cost from being too high due to an area ratio that is too large, and the entire stain-preventing sheet from becoming excessively wavy due to the thermal shrinkage of the film layer 12. The thickness of the adhesive layer 13 is not particularly limited, but examples include 5 μm to 80 μm. Within these limits, it is possible to prevent the adhesive strength from being insufficient due to being too thin, or the adhesive layer from being left behind as a residue when peeled off due to being too thick, and to avoid high costs. The method for forming the adhesive layer 13 is not particularly limited, but examples include pattern printing and spray coating.

[0039] The configuration of the stain-preventing sheet 10 of the embodiment is as described above. Next, its usage will be explained with reference to Figures 3 to 5 (and Figure 6 if necessary).

[0040] First, as shown in Figure 3, prepare a dirt-preventing sheet 10 that has been pre-cut along the missing portion 13b to match the dimensions of the rectifier plate 3 to be installed. With this stain-resistant sheet 10, the upper 10a and lower 10b film layers 12 are peeled off, starting from the upper and lower slits 12a and 12b. This exposes the adhesive layer 13 at the upper 10a and lower 10b.

[0041] Next, as shown in Figure 4, open the baffle plate 3 of the range hood 1, and press the stain-preventing sheet 10 against the back surface of the baffle plate 3, with its film layer 12 facing the back surface of the baffle plate 3, and its upper part 10a positioned towards the back of the baffle plate 3 (upper side when open) and its lower part 10b positioned towards the front of the baffle plate 3 (lower side when open). The adhesive layers 13 on the upper part 10a and lower part 10b attach and secure the anti-dirt sheet 10 to the back surface of the rectifier plate 3. In this case, it is preferable to attach the upper part 10a, which is located on the upper side, first, and then attach the lower part 10b, which is located on the lower side, so that the anti-dirt sheet 10 does not peel off due to its own weight. Furthermore, the rectifier plate 3 can swing vertically around the hinge 3a on the rear side, thereby enabling it to be opened and closed.

[0042] Furthermore, as shown in Figures 5 and 6, the rectifier plate 3 is swung upward to cover the air intake 2a of the hood body 2, and then fixed to the hood body 2 with the fixing bracket 3b on the front side, thereby completing the installation of the dirt-preventing sheet 10. In this state, pressing the operation button 2b located on the outer surface of the hood body 2 activates the sirocco fan 2d housed in the fan casing 2c inside the hood body 2. This initiates air intake through the gap between the back surface of the rectifier plate 3 and the hood body 2, drawing in oil fumes generated from the stove and other appliances into the range hood 1. The oil fumes pass through the sirocco fan 2d and are finally exhausted through the ventilation duct 2e. In the same figure, a grease filter 2f is placed over the air intake 2a to capture the oily components of the mist.

[0043] As shown in the diagram, the gap between the back surface of the rectifier plate 3 and the hood body 2 serves as a passage for oil fumes. However, since the back surface of the rectifier plate 3 is covered with a dirt-preventing sheet 10, oil fumes do not directly contact the rectifier plate 3 in the covered area. Furthermore, the nonwoven fabric layer 11 of the dirt-preventing sheet 10 facing the oil fumes passage side captures dirt D such as oil fumes. Furthermore, oil fumes adhere to the opening edge of the air intake port 2a and the grease filter 2f, and as these accumulate, they form oil droplets that may drip down toward the back surface of the rectifier plate 3, or oil droplets that overflow from the oil tray at the opening edge of the air intake port (not shown) may drip down toward the back surface of the rectifier plate. However, the nonwoven fabric layer 11 also captures such oil droplets and other contaminants D.

[0044] Here, some of the contaminants D, such as oil droplets, may seep through from the nonwoven fabric layer 11 to the back surface of the rectifier plate 3. However, in the intermediate section 10c, which makes up the majority of the anti-contamination sheet 10, there is a film layer 12 with excellent watertightness and liquidtightness between them. As a result, the contaminants D, such as oil droplets, are blocked here and do not reach the back surface of the rectifier plate 3. In particular, if the anti-contamination sheet 10 is configured such that the center of the intermediate section 10c corresponds to the position of the air intake port 2a, then the contaminants D, such as oil droplets, that drip from near the air intake port 2a are reliably blocked by the film layer 12, preventing contamination of the back surface of the rectifier plate 3. Therefore, the anti-fouling sheet 10 effectively prevents the back surface of the rectifier plate 3 from being soiled with dirt D such as oil fumes and oil droplets.

[0045] Furthermore, when the stain-preventing sheet 10 is in use, the film layer 12 is not present at its upper part 10a and lower part 10b. Therefore, the effect of blocking oil droplets that have permeated the nonwoven fabric layer 11 is not as effective in these areas as it is in the film layer 12. However, while oil droplets usually drip down around the area directly below the air intake port 2a, the upper part 10a and lower part 10b of the stain prevention sheet 10 are located considerably further forward and further back than directly below the air intake port 2a when installed, so oil droplets do not drip down there. In particular, in range hood 1, the air intake is often positioned towards the back rather than in the center. However, with the stain-preventing sheet 10 installed, the width of the upper part 10a located towards the back is small, and the width of the lower part 10b located towards the front is large. This ensures that areas without the film layer 12 do not reach directly below the air intake 2a, providing sufficient protection. Furthermore, most of the upper part 10a and lower part 10b have an adhesive layer 13, which also serves the same function as the film layer 12. Therefore, it provides a sufficient stain-preventing effect compared to not using the stain-preventing sheet 10. Thus, when the range hood is in use, the stain-preventing sheet 10 is attached to the back of the baffle plate, so that oil dripping from the sirocco fan at the air intake 2a is caught by the stain-preventing sheet. In particular, the stain-preventing sheet 10 located directly below the sirocco fan has a film layer 12, so the back of the baffle plate does not get dirty. Furthermore, when replacing the stain-preventing sheet 10, the baffle plate is opened again and the baffle plate is positioned vertically, so there is a risk that oil may drip down vertically. However, the stain-preventing sheet 10 has a non-woven fabric layer 11, and this non-woven fabric layer 11 absorbs the oil, so oil dripping from the stain-preventing sheet during replacement is also prevented.

[0046] The widths of the upper part 10a and the lower part 10b are not particularly limited, but since they do not have an oil droplet blocking effect during use as described above, it is preferable that they be 0.8 cm to 20 cm each, and more preferably that the width of the upper part 10a be 2 cm to 10 cm and the width of the lower part 10b be 5 cm to 15 cm. In this embodiment, the width of the upper part 10a is about 5 cm and the width of the lower part 10b is about 13 cm. If the width exceeds 20 cm, the upper 10a and lower 10b, which do not have the film layer 12 during use, will be too wide, and there is a risk that the back surface of the rectifier plate 3 will become soiled by oil droplets that have seeped through the nonwoven fabric layer 11. Furthermore, if the width is less than 0.8 cm, the width of the upper part 10a and the lower part 10b may be too small, and sufficient adhesion to the back surface of the rectifier plate 3 may not be obtained.

[0047] The embodiments disclosed herein are illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims and includes all modifications and changes within that scope and in an equivalent sense.

[0048] In this embodiment, the stain-preventing sheet 10 has a three-layer structure consisting of a nonwoven fabric layer 11, a film layer 12, and an adhesive layer 13, but it is not limited to this as long as it can be installed on the back surface of the rectifier plate 3. For example, it can also be a single-layer structure consisting only of the nonwoven fabric layer 11 or only of the film layer 12. Alternatively, a two-layer structure consisting of a nonwoven fabric layer 11 and a film layer 12, a nonwoven fabric layer 11 and an adhesive layer 13, or a film layer 12 and an adhesive layer 13 may be used. When an adhesive layer 13 is present, it can be attached to the back surface of the rectifier plate 3.

[0049] In the case of a single-layer structure consisting only of the nonwoven fabric layer 11 or only of the film layer 12, or a two-layer structure consisting of the nonwoven fabric layer 11 and the film layer 12, it is not possible to attach it to the back surface of the rectifier plate 3 as is. However, it is possible to fix it to the back surface of the rectifier plate 3 in a way that prevents it from shifting using magnets, double-sided tape, hook-and-loop fasteners, etc. Furthermore, the stain-resistant sheet 10 may also include layers other than the nonwoven fabric layer 11, film layer 12, and adhesive layer 13, such as an antibacterial layer containing an antibacterial agent to prevent the growth of bacteria on the stain-resistant sheet 10, and a highly shape-retaining layer to prevent the stain-resistant sheet 10 from bending or becoming wavy when installed.

[0050] In this embodiment, slits 12a and 12b are provided at the top and bottom of the film layer 12, and by peeling the film starting from these slits 12a and 12b, the adhesive layer 13 is exposed on the upper 10a and lower 10b of the anti-stain sheet 10, and it is attached to the back surface of the rectifier plate 3. However, the position of the slits and the location where the film is peeled to expose the adhesive layer 13 are not limited to this.

[0051] For example, slits may be provided on the left and right sides of the film layer 12, and by peeling the film from these slits, the adhesive layer 13 may be exposed on the left and right sides of the anti-stain sheet 10. The widths of the left and right sides may be the same or different. Furthermore, the slits and adhesive layer 13 may be exposed in the top, bottom, left, and right directions, or conversely, they may be exposed in only one of the top, bottom, left, or right directions. Furthermore, even when slits are provided at the top and bottom, in this embodiment the widths of the upper 10a and lower 10b are different, but they may be the same. Alternatively, instead of slits, easily breakable edges such as perforations or half-cuts may be used.

[0052] The pattern of the adhesive layer 13 is not limited to the embodiment; for example, the adhesive can be applied to the entire surface or to desired areas in a solid coating, or scattered in a dot pattern. Alternatively, the adhesive layer may be formed on the entire surface or partially by spray coating. When the dots are scattered in a dot pattern, the spaces between adjacent dots become missing sections 13b, which allow the anti-stain sheet 10 to be cut along these sections to adjust its dimensions, and also prevent the adhesive from sticking to the blade of the cutting tool.

[0053] In this embodiment, the film layer 12 is transparent, but it can also be opaque. In this case, it becomes difficult to see the missing portion 13b through the film layer 12, so, as with the slits 12a and 12b, a printed mark indicating the position of the missing portion 13b can be provided on the film layer 12.

[0054] In this embodiment, the shape of the stain-preventing sheet 10 is rectangular, but it is not limited to this, and may be circular, elliptical, polygonal, or the like. [Explanation of symbols]

[0055] 1. Range Hood 2 Hood body 2a Intake 2b Control Buttons 2c Fan Casing 2D Sirocco Fan 2e Ventilation duct 2f Grease filter 3 Rectifier plate 3a Hinge 3b Fixing bracket 10. Stain-resistant sheet 10a Upper part 10b Lower part 10c middle part 11 Non-woven layer 12 film layers 12a Upper slit 12b Lower slit 12c print display 13 Adhesive layer 13a Adhesive part 13b Missing part D Stain

Claims

1. A range hood with a baffle plate, comprising a range hood body having an air intake port and a baffle plate facing it with a predetermined gap directly below the air intake port, wherein air is drawn in through the gap, and a stain-preventing sheet that can be installed on the baffle plate of the range hood with a baffle plate, The stain-preventing sheet is installed so as to cover the back surface of the rectifier plate that faces the range hood body, This prevents air containing oil fumes drawn in through the gap from coming into contact with the back surface of the rectifier plate, and also catches oil droplets that drip down from the side of the range hood body. Located on the side of the range hood body in the installed state, a nonwoven fabric layer that captures oil fumes and oil droplets, The device comprises a film layer located on the back side of the rectifier plate in the installed state, which prevents the oil fumes and oil droplets captured by the nonwoven fabric layer from seeping through to the back side of the rectifier plate, The nonwoven fabric layer and the film layer are further provided with an adhesive layer. By peeling off a portion of the film layer and exposing the adhesive layer, It can be attached to the back surface of the rectifier plate. The aforementioned film layer consists of an upper, lower, left, and right section, and an intermediate section. A stain-preventing sheet for a range hood baffle plate, configured to be attachable to the back surface of the baffle plate with at least one of the upper, lower, left, and right portions of the film layer peeled off, while the middle portion of the film layer remains peeled off.

2. The stain-preventing sheet for the baffle plate of a range hood according to Claim 1, wherein the film layer is configured such that the upper and lower parts are peeled off as an upper and lower pair, or the left and right parts are peeled off as a left and right pair.

3. The film layer has a slit formed at the boundary between the middle portion and at least one of the upper, lower, left, and right portions. The stain-preventing sheet for the baffle plate of a range hood according to claim 1, wherein the portion from the slit in the film layer to the outer edge of the sheet can be peeled off.

4. The stain-preventing sheet for the baffle plate of a range hood according to claim 3, wherein the film layer has printed markings indicating the position of the slits.

5. The stain-preventing sheet for a range hood baffle plate according to any one of Claims 1 to 4, wherein at least one of the upper, lower, left, and right portions has a larger proportion of adhesive in the adhesive layer than the intermediate portion.

6. The adhesive layer has missing layers arranged in parallel at regular intervals in the longitudinal or transverse direction of the sheet. A stain-preventing sheet for a range hood baffle plate according to any one of claims 1 to 4, wherein the sheet can be cut along the missing layer.

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