JP4550793B2 - System kitchen face material - Google Patents

Description

  The present invention relates to a face material for a system kitchen. More specifically, it is used as a face material for doors, hinged doors, and drawers of each cabinet in the system kitchen, and is made of all plastic. It is lightweight, does not easily warp, has a high-class feel, has good screw pullout strength, and When used for a door, the present invention relates to a face material for a system kitchen that can form a hinge mounting hole having a good shape while having durability of the door against repeated opening and closing.

  In recent years, the system kitchen has been in the spotlight because it has features such as rational use of cooking work, effective use of space, good cleaning function, and harmony of colors.

  This system kitchen is a variety of cabinets such as wall cabinets, floor cabinets, tall cabinets, etc. necessary for cooking work, and cooking appliances, range hoods, refrigerators, freezers, garbage dryers, dishwashers, etc. It is a kitchen facility that is combined with each other.

  In such a system kitchen, as a face material for members of various cabinets such as doors, hinged doors and drawers, conventionally, a particle board or MDF (Midium Density Fiberboard) is used as a core material, and a makeup made of, for example, melamine resin is used thereon. Surface materials that have been finished, have an acrylic urethane-based resin coat finish by an ultraviolet curing system, and a joint finish by a plastic film such as a polyethylene terephthalate film are used. When these face materials are used for the screw pull-out strength and door, the door durability against repeated opening and closing passes the JIS standard, but the lightness and recyclability are not satisfactory. . Also, mainly wood and plastic materials are integrated, which makes recycling extremely difficult, and problems have been pointed out from the environment. Further, since it is a composite of different materials, the linear expansion coefficients of the constituent materials are slightly different and the adhesion between the materials is different, so that warpage due to thermal expansion is a problem.

  As a laminated structure that is lightweight and has good recyclability, for example, 20 to 85% by weight of an inorganic filler is contained on both surfaces of a polyolefin foam sheet or a polyolefin lightweight material sheet having a space inside through an adhesive layer. A polyolefin-based laminated structure comprising a polyolefin-based resin sheet having a thickness of 1 to 10 mm is disclosed (for example, see Patent Document 1).

This laminated structure is formed by providing a polyolefin resin sheet on both surfaces of a polyolefin lightweight sheet such as a polyolefin foam sheet. An acrylic resin plate is provided on the surface side of a plate-like plastic foam via a pattern layer. A laminated structure for a system kitchen in which a styrenic resin plate having a sticky body and an adhesive adjustment layer on the back side is provided has not been known so far.
JP 2002-29008 A

  Under such circumstances, the present invention is used as a face material for doors, hinged doors, drawers and the like of each cabinet in the system kitchen, and is made of all plastic, is light and does not easily warp, and has a high-class feeling. The object is to provide a surface material for a system kitchen which has a good screw pull-out strength and durability of the door against repeated opening and closing and can form a hinge mounting hole with a good shape when used for a door. It was made as.

  As a result of intensive studies to achieve the above object, the present inventors have found that an adhesive layer, a pattern layer, and an acrylic resin plate are provided on the surface side of a plate-like plastic foam having a specific expansion ratio. It was found that the purpose can be achieved by a face material provided with an adhesion adjusting layer and a styrene resin plate-like body on the back side through an adhesive layer, and the present invention is completed based on this knowledge. It came to do.

That is, the present invention
(1) A pattern layer and an acrylic resin plate are sequentially provided on one surface of a plate-like plastic foam having an expansion ratio of 4 to 15 times via an adhesive layer, and an adhesive layer is provided on the other surface. A surface material for a system kitchen characterized by providing an adhesion adjusting layer and a styrenic resin plate (the pattern layer here comprises a combination of a pattern and a background color, and a single color without a pattern) Meaning only background color)
(2) The raw materials used for the coating film forming the adhesion adjusting layer are acrylic resin, urethane resin, epoxy resin, vinyl chloride resin, vinyl acetate resin, EVA resin, copolymer resin thereof, or a mixture thereof. An enamel paint or a clear paint is prepared using a resin or the like, applied uniformly to one side of the styrenic resin plate, and cured to form an adhesion adjusting layer. A film thickness in the range of 1 μm to 30 μm is practical, and the adhesion adjusting layer is adjusted to an appropriate thickness corresponding to the thickness of the picture layer, and an equivalent coating film on both sides of the plate-like plastic foam By providing the function, it has a function of acting so as not to cause warping of the face material accompanying a temperature change. The pattern layer is an important layer that enhances the product value as a face material for system kitchens, and the resin and design aggregate used are naturally determined, and the shrinkage accompanying the drying and hardening of the picture layer including these warps the face material. Therefore, it is required to prepare an adhesion adjusting layer having an equivalent shrinkage rate and strength to counter this. In addition, the adhesive relationship between the pattern layer and the plate-shaped plastic foam body causes expansion and contraction due to heat, which causes warping. It is required to prepare on the adhesive surface of plastic. For coating, a roll coater or flow coater is usually used, but a film thickness of 1 μm or more is necessary to maintain a uniform coating surface, and 30 μm is required to ensure strength against the pattern layer. If there is enough.

(3) The plate material for a system kitchen according to the above (1), wherein the plate-like plastic foam is a plate-like polystyrene-based foam having a thickness of 5 to 40 mm,
(4) The surface material for a system kitchen according to (1) or (2) above, wherein the acrylic resin plate has a thickness of 2 to 6 mm,
(5) The system kitchen surface material according to any one of (1) to (3) above, wherein the acrylic resin plate is a polymethylmethacrylate plate, and (6) a styrene resin plate. , High impact polystyrene (hereinafter referred to as HIPS) provided with an adhesion adjusting layer , acrylonitrile-butadiene-styrene copolymer resin (hereinafter referred to as ABS resin), acrylonitrile-styrene copolymer resin (hereinafter referred to as AS resin), acrylonitrile. -Acrylic rubber-styrene copolymer resin (hereinafter referred to as AAS resin) , a mixture of these resins, and a plate-like body composed of a low foam having a foaming ratio of 2 times or less of these resins and mixed resins. The face material for a system kitchen according to any one of (1) to (4) above, which is 2 to 6 mm.

  According to the present invention, the fuel is used as a face material for doors, hinged doors and drawers of each cabinet in the system kitchen, and is made of all plastic, is light and hardly warps, has a high-class feeling, and does not require separation. In addition to providing good screw pull-out strength and door durability when used for doors, it also provides a system kitchen surface material that can form a hinge mounting hole with a good shape. can do.

  The face material for a system kitchen of the present invention is provided with an adhesive, a pattern layer and an acrylic resin plate in order on one side (front side) of the plate-like plastic foam, and on the other side (back side). A face material provided with an adhesion adjusting layer and a styrene-based resin plate through an adhesive layer.

  In the system kitchen face material of the present invention, the expansion ratio of the plate-like plastic foam used as the core material is selected in the range of 4 to 15 times. If the foaming ratio is 4 or more, the lightness of the obtained face material is exhibited, and if the foaming ratio is 15 times or less, when the hinge mounting hole is provided with a countersink cutter, A hole having a desired good shape can be formed. A preferable expansion ratio of the plate-like foam is in a range of 6 to 12 times.

  The plate-like foam is not particularly limited, but a plate-like polystyrene-based foam is preferably used from the standpoints of properties as a core material, environmental non-contamination during incineration, recyclability, adhesion processability and economy. It is done. There is no restriction | limiting in particular as a preparation method of these plate-shaped foams, What is necessary is just to select suitably according to each material from extrusion foam molding, injection foam molding, metal mold | die foam molding using a foam particle, etc.

  As the resin component of the plate-like polystyrene-based foam, a general-purpose polystyrene resin is usually used. A recycled product can also be used.

  In the present invention, in order to produce a plate-like polystyrene-based foam, first, each of the above-mentioned general-purpose polystyrene resin, if desired, various additives, such as inorganic filler, antioxidant, thermal stabilizer, ultraviolet absorber, Light stabilizers, chlorine scavengers, flame retardants, flame retardant aids, lubricants, mold release agents, colorants, plasticizers, softeners such as process oil and liquid paraffin, other thermoplastic resins and thermoplastic elastomers, etc. Each resin composition is prepared by appropriately blending and mixing with a tumbler blender, a Henschel mixer or the like, or by mixing and granulating using a single screw extruder or a multi-screw extruder after mixing.

  Next, a desired plate-like foam can be obtained by using each of the resin compositions and performing foam molding using a foam molding method according to the type of each resin.

  In the face material of the present invention, the thickness of the plate-like plastic foam used as the core material is usually selected in the range of 5 to 40 mm, preferably 8 to 25 mm.

  In the present invention, a primer layer can be provided on the surface of the plate-like plastic foam in order to improve the adhesion with the layer provided thereon. As the primer layer, for example, an ethylene-vinyl acetate copolymer resin, an olefin resin or a mixture thereof, a chlorinated polyolefin resin, a polyurethane resin, a maleic acid-modified polypropylene resin, or the like dissolved in a solvent, or these resins are used. It is preferable to provide a primer layer having a thickness of about 1 to 5 μm by applying a coating liquid that has been finely pulverized and emulsified by adding a surfactant or the like, followed by drying. In the present invention, when a plastic foam sheet having no skin layer (the one obtained by slicing the surface and removing the skin layer) is used as the base material, sufficient adhesion can be obtained. It is particularly desirable as a plate-like foam to be used.

  The face material of the present invention is a laminated structure having the above-mentioned plate-like plastic foam as a core material, and FIG. 1 shows a sectional view of an example of the face material of the present invention.

  As shown in FIG. 1, a face material 10 of the present invention is provided with pattern layers 3 and 4 and an acrylic resin plate 5 in this order on the surface side of a plate-like plastic foam 1 with an adhesive layer 2 interposed therebetween. In addition, the plate-like plastic foam 1 has a structure in which an adhesion adjusting layer 3 ′ and a styrene resin plate-like body 6 are provided on the back side of the plate-like plastic foam 1 via an adhesive layer 2 ′.

  In the face material 10 of the present invention, the acrylic resin plate-like body 5 is generally made of methyl methacrylate as a main raw material. This acrylic resin plate is excellent in transparency, weather resistance, workability (cutting, drilling, bending, etc.), colorability and the like. In the present invention, the thickness of the acrylic resin plate is usually about 2 to 6 mm, preferably 2 to 4 mm. By providing the acrylic resin plate having the above thickness, it is possible to impart depth and profound feeling to the picture seen through it. The acrylic resin plate may be colored as desired.

  In the face material 10 of the present invention, the pattern layers 3 and 4 are provided on one surface of the acrylic resin plate 5 by direct printing or painting. The paint to be applied may be either solvent-based or water-based, and as the resin system, acrylic resin, acrylic urethane resin, vinyl chloride resin or the like is used.

  The pattern layers 3 and 4 are gravure-printed on one surface of the acrylic resin plate 5 to express a grain pattern, stone pattern, cloth pattern, natural leather surface pattern, abstract pattern, geometric pattern pattern, etc. By applying general printing such as screen printing, offset printing, convex printing, transfer printing, flexographic printing, etc., it can be formed with a thickness of about 1 to 30 μm. The pattern layer can also be formed by applying a single color coating by a general coating means such as spray, flow coater, roll coater or the like.

  In order to impart high designability, the pattern layers 3 and 4 in the face material 10 may sometimes be provided with a solid layer of about 1 to 30 μm thickness such as silver or gray as a background layer. The pattern layer which consists only of such a background layer may be sufficient, and the pattern layer which arrange | positions a suitable pattern to a background layer may be sufficient. In FIG. 1, the background layer is 3 and the pattern is 4.

  In the face material 10 of the present invention, the acrylic resin plate-like body 5 in which the picture layers 3 and 4 are provided on one side in this way is used, and the picture layers 3 and 4 are the above-mentioned plate-like plastic foam. Joining via the adhesive layer 2 so as to face the surface side of the body 1.

  As the adhesive constituting the adhesive layer 2, either a heat sensitive adhesive or a pressure sensitive adhesive can be used. Examples of the heat-sensitive adhesive include chlorinated polyolefin resin, polyurethane resin, epoxy resin, acrylic resin, vinyl resin, vinyl acetate resin, polyester resin, ethylene-vinyl acetate copolymer resin, acrylic-vinyl acetate copolymer. A known adhesive mainly composed of a polymer resin, a polyamide-based resin, an ionomer-based resin, or the like can be used. On the other hand, as the pressure-sensitive adhesive, for example, acrylic, silicon-based, rubber-based, or the like can be used. it can. The thickness of this adhesive layer is usually about 1 to 50 μm, preferably 5 to 30 μm.

  In the face material 10 of the present invention, the styrenic resin plate-like body 6 having the adhesion adjusting layer 3 ′ provided on the back side of the plate-like plastic foam 1 via the adhesive layer 2 ′ includes HIPS, ABS. Resin, AS resin, AAS resin, a mixture of these resins, and a plate-like body made of a low foam having a foaming ratio of 2 times or less of these resins and mixed resins can be used.

The styrenic resin plate having the adhesion adjusting layer 3 ′ has a linear expansion coefficient similar to that of the acrylic resin plate, and the adhesion adjusting layer 3 ′ on the adhesive surface is composed of the pattern layer 3 and the adhesive layer 3 ′. 4 is a coating film having an adhesiveness close to 4, so that the interface at the interface between the core material and the acrylic resin plate 5 that is the adherend and the interface between the core material and the styrene resin plate 6 are respectively used. The behavior is the same. Therefore, the face material of the present invention is less likely to warp. Moreover, this styrene resin plate-like body has good moldability, impact resistance, adhesion processability, etc. without containing a large amount of inorganic filler, and can reduce the weight of the face material.

  The styrene resin plate and the acrylic resin plate have approximate linear expansion coefficients, and the thickness is in the range of 2 to 6 mm. The influence of the pattern layer and the adhesion adjusting layer is small, but the influence becomes significant at 3 mm or less. Since the resin constituting the pattern layer is required to have good adhesion to the acrylic resin plate, the acrylic paint of the same system is preferred, but acrylic urethane resin, vinyl chloride resin, etc. can be used. Primers may be used as appropriate. On the other hand, the adhesion adjusting layer that is in close contact with the styrenic resin plate is located on the back side of the face material, so it does not require transparency, so various resins other than acrylic resin can be used if the linear expansion coefficient is close to that of styrene resin. Is available. For example, a urethane resin, an epoxy resin, a vinyl chloride resin, a vinyl acetate resin, an EVA resin, a copolymer or a mixture thereof can be used, and these can be used as an enamel or a clear paint. In the face material manufacturing process, the pattern layer is applied to a transparent acrylic resin plate and then dried, and the adhesion adjusting layer is applied to the styrene resin plate and dried and cured. As few as possible, stable bonding work can be performed in the process of bonding to the next core material, and warpage of the entire face material can be minimized. Furthermore, the pattern layer and the adhesion adjusting layer exhibit the same behavior with respect to temperature changes, and can maintain a stable form as a system kitchen surface material.

  In terms of linear expansion coefficient, mechanical properties, impact resistance, moldability, etc., the styrenic resin plate-like body includes HIPS, ABS resin, AS resin, AAS resin, a mixture of these resins, and these resins. A plate-like body made of a low foamed material having a foaming ratio of 2 times or less of the mixed resin is preferred.

  In the face material 10 of the present invention, the thickness of the styrenic resin plate 6 is usually 2 to 6 mm, preferably 2 to 4 mm. From the viewpoint of preventing warpage, the above acrylic resin plate is used. It is preferable that the thickness is substantially the same as that of the body 5.

  As the adhesive constituting the adhesive 2 ′ provided for joining the styrenic resin plate 6 and the plate-like plastic foam 1, a heat-sensitive adhesive is usually used. Examples of the heat-sensitive adhesive include chlorinated polyolefin resin, polyurethane resin, epoxy resin, acrylic resin, vinyl resin, vinyl acetate resin, polyester resin, ethylene-vinyl acetate copolymer resin, acrylic-acetic acid. A known adhesive mainly composed of vinyl copolymer resin, polyamide resin, ionomer resin or the like can be used. The thickness of the adhesive layer 2 ′ is usually about 1 to 50 μm, preferably 5 to 30 μm.

  In addition, as a styrene resin plate-shaped body, what gave the finish coating to the opposite surface of the side joined with a plate-shaped plastic foam can be used.

  Although there is no restriction | limiting in particular in the manufacturing method of the face material of this invention, For example, it can manufacture efficiently with the method shown below.

  First, a sheet A is prepared in which the pattern layers 3 and 4 are provided on one surface of the acrylic resin plate as described above.

  Next, an adhesion adjusting layer 3 ′ is provided on one surface of the styrenic resin plate to produce a sheet B.

  Next, a urethane adhesive is applied to both sides of the primer-treated plate-like plastic foam, and the above-mentioned sheet AB is joined and integrated so that the coated surface is in contact with the adhesive, to form a laminated structure. The face material of the present invention is obtained by cutting into a predetermined shape and further joining an edge material such as an acrylic resin plate to the edge portion with an adhesive.

  The face material of the present invention is used as a face material for members of various cabinets in a system kitchen, such as doors / folding doors and drawers of wall cabinets, floor cabinets, tall cabinets, etc., and has the following effects.

  The face material is made of all plastics and uses a plate-like polystyrene foam as a base material. Therefore, the face material is light and resource-saving, and has good adhesiveness and is recyclable. In addition, since the acrylic resin plate-like body having a thick and excellent transparency is provided on the surface, it has an appearance that gives a sense of quality by adding depth and profoundness to the picture seen through it.

  Furthermore, since the adhesive material adjustment layer and the styrene-based resin plate are laminated on the back side of the plate-shaped plastic foam, the face material is less likely to warp, and when used for a good screw pull-out strength and door It is possible to form a hinge mounting hole having a favorable shape while having durability of the door against repeated opening and closing.

  EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited at all by this example.

(1) Production of Sheet A A cream-based acrylic resin enamel paint (made by Toupe, trade name “" on the surface of a 3 mm thick polymethyl methacrylate plate (trade name “Acrylite S” made by Mitsubishi Rayon)) A paint prepared by diluting Refine 2K ”) with a special thinner and adjusting the viscosity to 20 seconds / Iwata Cup # 2 was applied at a rate of 165 g / m ² with a curtain coater, placed in a shelf, and naturally dried. The drying time was performed at room temperature of 20 ° C. for 12 hours to form a monocolor pattern layer. The film thickness was measured and found to be 15 μm.

(2) Production of Sheet B Next, an acrylic resin enamel paint (made by Toupe, trade name “Refine 2K”) is formed on one surface of an ABS plate-like body having a thickness of 3 mm (trade name “Toughace ML” made of plastic in the cylinder). Was adjusted to a viscosity of 20 seconds / NK # 2 with a special thinner, applied at a rate of 110 g / m ² with a curtain coater, placed in a shelf and dried at room temperature for 12 hours to form an adhesion adjusting layer. It was 10 micrometers when the film thickness was measured.

(3) Production of Laminate Both sides of a plate-like polystyrene foam having a thickness of 12 mm and an expansion ratio of 8 times (product name “Mirai Board” manufactured by GS Corporation) are coated with PP primer (product name “PP primer” manufactured by Konishi). Was applied with a brush at a rate of 55 g / m ² and subjected to primer treatment. Dry at room temperature (20 ° C.) for 30 minutes, and use a double-sided spreader to apply a water-based polyurethane adhesive (manufactured by Konishi, trade name “bond KU55” curing agent “bond KU curing agent R”) as the main agent / curing agent = 1. The mixture was mixed at a ratio of ^1/2 , and double-sided coating was performed at a ratio of 150 g / m ^{2 on} one side.

Next, deaeration with the roll interval set to 17 mm was made by superimposing sheet A, plate-like polystyrene foam, and sheet B in this order so that the paint application surface of sheet A and sheet B was in contact with the adhesive application surface. Bubbles in the adhesive were driven out through the roll (referred to as degassing). The load was clamped at 0.05 kg / cm ² with a cold press for 24 hours.

  Next, this laminated structure (thickness of about 18 mm) was cut to obtain a size of 445 mm in width and 695 mm in length, and then an acrylic resin plate having a thickness of 2 mm [manufactured by Panefuri Industry Co., Ltd. , The product name “Marblet S”] was joined using a styrene-vinyl acetate copolymer hot melt adhesive [manufactured by Daikyo Co., Ltd., product name “Imelt-W-1600”], and the target face material was bonded. Produced.

The paint layer is coated with a fine aluminum strip in acrylic urethane resin, and the paint adjusted to a viscosity of 22 seconds / Iwata Cup # 2 with a special thinner is applied with a curtain coater at 150 g / m ² , and air-dried to form a film. A pattern layer having a thickness of 18 μm was formed. In addition, an epoxy resin enamel coating is diluted to 22 seconds / Iwata Cup # 2 with a special thinner for coating the adhesion control layer, coated at a rate of 130 g / m ² with a curtain coater, and dried at room temperature for 12 hours to form a film. An adhesion adjusting layer having a thickness of 15 μm was formed. Except for this, the face material was completed in the same manner as in Example 1.

(4) Evaluation The total weight of the face material obtained in the above (3) was 2.82 Kg, and the appearance was given a depth and profound feeling and had an appearance giving a high-class feeling.

  Furthermore, the following methods were used to evaluate the screw pullout strength test, the door / sliding door durability test, the hinge mounting hole test, and the warpage.

(A) Screw pull-out test A screw pull-out test was conducted using a tapping screw having a diameter of 3.5 mm and a length of 16 mm as a test screw, and “AGS-500B” manufactured by Shimadzu Corporation as a tensile tester.

  FIG. 2 is an explanatory view showing a screw pull-out test method.

  First, the test screw 22 is attached to the screw holding plate 21 [(a)] of the pull-out tester [(b)].

  Next, a hole with a diameter of 1 mm is made in the ABS resin plate 6a in the face material with a screw, and the test screw 22 is screwed into the hole [(c)]. Next, this test body was attached to the fixing base 23 of the test machine, and the upper part of the holding plate 21 with the test screw 22 was firmly fixed to the knob 24 of the test machine, and the screw pull-out strength was measured [(d). ]. As a result, the screw pullout strength was 47.0 kg, which was acceptable (extracted strength of 41 kg or more was acceptable).

  FIG. 3 is an enlarged cross-sectional view of the screwed portion of the test screw. 2 and 3, reference numeral 1a is a plate-like polystyrene foam, and 5a is a polymethylmethacrylate plate.

(B) Durability test of doors and hinged doors Durability tests were carried out according to JIS A 4420: 1998 hinged door durability test (Test Clause 8.12).

<Conditions>
(A) Door used in the test: Door made of face material obtained in this example (W445 × H695) 1.82 kg of own weight (b) Opening and closing times: 40,000 times (c) Opening and closing angle: range of 0 to 45 degrees Reciprocating (d) Opening and closing operation: About 10 reciprocations per minute (e) Load on the door: 1.5 kg at the center of the door, 1.5 kg at the back, 3.0 kg in total
The above (b) to (e) are test clauses of the JIS standard.

<Accessory> Hinge: (1) Main body Metal hinge 110 ○ Open (one-touch type) 2
(2) Washers Metal washers (front and rear 2 point fixed type) 2
Strength weight: 100 x 50 x 30 mm Weight 1.5 kg / piece 2 pieces
As a result of the durability test for one door opening / closing tester, there was no trouble in use.

(C) Hole mounting test for hinge installation In the face material, from the ABS resin plate body side, a hole with a diameter of 35 mm and a depth of 13 mm is mounted with a counterbore cutter so that the side wall surface is 5 mm from the side of the door. The drill was opened using a drill and the shape was observed. FIG. 4 shows the cross-sectional shape of the hole.

  For comparison, instead of using a plate-like polystyrene foam having an expansion ratio of 8 times, a face material was produced in the same manner as described above except that a plate-like polystyrene foam having an expansion ratio of 17 times was used. A hinge mounting drilling test was performed and the shape of the hole was observed. The cross-sectional shape of this hole of FIG. 5 is shown.

  4 and 5 are the same as those described above.

  As shown in FIG. 4, the face material of the present invention using a plate-like polystyrene foam having an expansion ratio of 8 as the core material had a good hole shape, and the hole side wall was not disturbed much. On the other hand, the face material of the comparative example using a plate-like polystyrene foam having a foaming ratio of 17 times as the core material is broken by melting or rotation with the rotational heat of the counterbore cutter, as shown in FIG. The hole side wall was greatly disturbed, and the desired hole shape could not be maintained.

(D) Evaluation of warpage A sample having a length of 100 cm and a width of 50 cm is cut out from the face material obtained in Example 1, and is heat-dried for 24 hours in a constant temperature dryer at 60 ° C ± 3 ° C. After heat radiation, the sample was placed on a flat glass, and the heights of a total of eight corner points and midpoints were measured, and then measured in the same manner with the back side facing up. As a result, the warpage was a maximum of 0.5 mm. Similarly, when the same evaluation was performed on the face material obtained from Example 2, the warpage was 0.5 mm, and no particular difference was observed.

Comparative Example 1
In the production of the laminate, a face material was produced in the same manner as in Example 1 by using an ABS resin plate-like body to which the adhesion adjusting layer 3 ′ was not applied.

  The total weight of the face material was 2.80 kg, and the appearance was deep and heavy, giving it a high-grade appearance.

  When this face material was evaluated in the same manner as in Example 1, the screw pull-out strength was 45.2 kg, which was acceptable, and as a result of the durability test, there was no state that would hinder the use. Further, in the hinge mounting drilling test, the cross-sectional shape of the hole was the same as in Example 1, but in the evaluation of the warp, the warp was a maximum of 3.00 mm, which hindered use.

Comparative Example 2
A melamine decorative sheet with a thickness of 1.0 mm is bonded to both sides of the particle board with an adhesive to produce a laminated structure with an overall thickness of 18 mm, and then cut into a face material with a width of 445 mm and a length of 695 mm. Produced. This face material has substantially the same volume as the face material of Example 1. The weight was 5 kg, which was 1.8 times that of the face material of Example 1.

Comparative Example 3
A 1.0 mm thick melamine decorative sheet is bonded to the back side of the particle board with an adhesive, and an ultraviolet curable acrylic urethane-based resin layer having a thickness of 80 μm is provided on the front side to form a laminated structure having an overall thickness of 18 mm. After producing, it cut | judged and produced the face material of width 445mm and length 695mm. This face material has substantially the same volume as the face material of Example 1. The weight was 4.8 kg, which was 1.7 times that of the face material of Example 1.

  The face material for the system kitchen of the present invention is made of all plastics, is light and does not easily warp, has a high-class feeling, and has good screw pull-out strength and durability of the door against repeated opening and closing. In addition to this, a hinge mounting hole having a good shape can be formed, and it is used as a face material for doors, hinged doors and drawers of each cabinet in the system kitchen.

 From another point of view, this structure is entirely made of petrochemical products, and there is no need for separate disposal such as products made of wood and plastic, and its use as a regenerative fuel can be considered.

It is sectional drawing of one example of the surface material for system kitchens of this invention. In an Example, it is explanatory drawing which shows the screw pull-out test method J of a face material. FIG. 3 is an enlarged cross-sectional view of a threaded portion of a test screw in the face material screw pull-out test method in FIG. 2. It is a cross-sectional shape figure of the hole in the hinge attachment drilling test about the face material of an Example. It is a cross-sectional shape figure of the hole in the hole mounting test for hinge attachment about the face material of a comparative example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plate-like plastic foam 1a Plate-like polystyrene foam 2,2 'Adhesive layer 3,4 Picture layer 5 Acrylic resin plate-like body 5a Polymethylmethacrylate plate-like body 6 Styrenic resin plate-like body 6a ABS resin plate-like Body 10 Face material 21 Screw holding plate 22 Test screw 23 Fixing base of testing machine 24 Knob of testing machine 3 'Adhesion adjusting layer

Claims (6)

An adhesive pattern layer and an acrylic resin plate are provided in this order on one side of a plate-like plastic foam with an expansion ratio of 4 to 15 times via an adhesive layer , and an adhesive layer is provided on the other side. A system kitchen surface material comprising a styrenic resin plate-like body having an adhesion adjusting layer which is a coating film having adhesiveness similar to the picture layer.   The enamel paint in which the coating film forming the adhesion adjusting layer is made of acrylic resin, urethane resin, epoxy resin, vinyl chloride resin, vinyl acetate resin, EVA resin, copolymer resin thereof, or mixed resin thereof. Alternatively, the system kitchen surface material according to claim 1, wherein the coating is a clear coating and has a thickness of 1 to 30 µm.   The plate material for a system kitchen according to claim 1 or 2, wherein the plate-like plastic foam is a plate-like polystyrene-based foam having a thickness of 5 to 40 mm.   The face material for a system kitchen according to any one of claims 1 to 3, wherein the acrylic resin plate has a thickness of 2 to 6 mm.   The system kitchen surface material according to any one of claims 1 to 4, wherein the acrylic resin plate is a polymethylmethacrylate plate. Styrenic resin plate is made of high-impact polystyrene, acrylonitrile-butadiene-styrene copolymer resin, acrylonitrile-styrene copolymer resin, acrylonitrile-acrylic rubber-styrene copolymer resin, and the foaming ratio of these resins and mixed resins is 2 times or less. The face material for a system kitchen according to any one of claims 1 to 5, which is a plate-like body made of a low-foamed material having a thickness of 2 to 6 mm.

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