WO2018225844A1 - Decorative material - Google Patents
Decorative material Download PDFInfo
- Publication number
- WO2018225844A1 WO2018225844A1 PCT/JP2018/021954 JP2018021954W WO2018225844A1 WO 2018225844 A1 WO2018225844 A1 WO 2018225844A1 JP 2018021954 W JP2018021954 W JP 2018021954W WO 2018225844 A1 WO2018225844 A1 WO 2018225844A1
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- WO
- WIPO (PCT)
- Prior art keywords
- layer
- plywood
- thickness
- synthetic resin
- veneer
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/04—Manufacture or reconditioning of specific semi-finished or finished articles of flooring elements, e.g. parqueting blocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/13—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board all layers being exclusively wood
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
- E04F15/045—Layered panels only of wood
- E04F15/046—Plywood panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/08—Coating on the layer surface on wood layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
Definitions
- the present invention relates to a cosmetic material.
- a wooden layer of HDF or a lauan plywood laminated with a lauan material is used as a wooden base material for a decorative material such as a flooring decorative material.
- plywood is a thin plate of wood called a single plate (tanban) cut with a rotary race, slicer, etc., and the fiber directions of the single plate are substantially perpendicular to each other, and a plurality of single plates are bonded.
- Laminated wood board is a thin plate of wood cut with a rotary race, slicer, etc.
- the Rawan material has insufficient hardness, the impact resistance is inferior, and the appearance defect of the surface of the plywood using the Rawan material is visible in the decorative material in which the design layer is laminated on the surface of the plywood. There's a problem.
- MDF and HDF have a large dimensional change rate as compared with the delaminated material, and the decorative material using these plywoods has a problem of warping.
- Patent Documents instead of pasting a wooden base material having a smooth surface, a flooring decorative material using a decorative sheet in which a hard resin layer is provided on the back surface of the decorative sheet to form a thick film has been proposed (for example, Patent Documents). 3).
- the flooring decorative material described in Patent Document 3 has room for study on improvement of impact resistance and suppression of warpage.
- it is necessary to increase the thickness of the decorative sheet.
- An object of the present invention is to provide a cosmetic material excellent in impact resistance, warpage, and design.
- the present inventors have found that the first layer and the second layer are woody in the decorative material having the design layer on the first layer of the plywood having the first layer and the second layer in order from the top.
- a synthetic resin in which the thickness of the first layer is less than 1.0 mm, the specific gravity of the second layer is greater than the specific gravity of the first layer, and the design layer has a thickness of 0.20 to 0.70 mm The present invention has been completed by finding that the above-described object can be achieved by using a makeup sheet.
- the present invention relates to the following cosmetic materials.
- the decorative material according to Item 1 wherein the synthetic resin decorative sheet has a synthetic resin backer layer on the plywood side. 4).
- Item 4. The cosmetic material according to Item 3, wherein the synthetic resin backer layer has a Martens hardness of 50 to 300 N / mm 2 . 5).
- Item 2. The cosmetic material according to Item 1, wherein the outermost layer of the synthetic resin decorative sheet is an ionizing radiation curable resin layer. 6).
- the decorative material according to Item 5 wherein the synthetic resin decorative sheet has the ionizing radiation curable resin layer as an electron beam curable resin layer. 7).
- Item 2. The cosmetic material according to Item 1, wherein the first layer is a poplar veneer and the second layer is a eucalyptus veneer. 8).
- Item 2. The cosmetic material according to Item 1, wherein the first layer is a poplar veneer and the second layer is a eucalyptus veneer. 8).
- the cosmetic material according to Item 1, wherein the first layer is a Chinese poplar veneer. 9. Item 2. The cosmetic material according to Item 1, wherein the first layer is a hardwood veneer. 10. Item 2. The cosmetic material according to Item 1, wherein the specific gravity of the first layer is less than 0.50, and the specific gravity of the second layer is 0.50 or more. 11. Item 2. The cosmetic material according to Item 1, wherein the thickness of the first layer is 0.6 mm or more and 0.9 mm or less. 12 Item 2. The cosmetic material according to Item 1, wherein the second layer has nodes on at least a part of the surface on the first layer side, and the nodes of the first layer are fewer than the nodes of the second layer. . 13. Item 2.
- the decorative material according to Item 1 wherein the number of layers of the plywood is five or seven. 14 Item 2. The cosmetic material according to Item 1, which is a flooring cosmetic material. 15. Item 10. A synthetic resin decorative sheet used for the design layer of the decorative material according to Item 1.
- the cosmetic material of the present invention is excellent in impact resistance, warpage, and design.
- the decorative material of the present invention will be described in detail.
- the uppermost layer of the design layer (for example, the surface protective layer when the surface protective layer is formed) is a so-called “front surface” (surface visually recognized after construction). Therefore, in this specification, the direction in which the uppermost layer (surface protective layer or the like) of the design layer of the decorative material exists is referred to as “upper” and the opposite side is referred to as “back” or “lower”.
- the surface on the first layer side of the plywood is a so-called “front surface”, and is the surface on the side laminated with the design layer. Therefore, in this specification, the direction of the surface on the first layer side of the plywood is referred to as “up”, and the opposite side is referred to as “back” or “down”.
- the decorative material of the present invention is a decorative material having a design layer on the first layer of a plywood having at least a first layer and a second layer in order from the top, wherein (1) the first layer and The second layer is a wood material, (2) the thickness of the first layer is less than 1.0 mm, (3) the specific gravity of the second layer is greater than the specific gravity of the first layer, (4) The design layer has a total thickness of 0.20 or more and 0.70 mm or less.
- the decorative material according to the present invention having the above-described features is capable of finally suppressing the dent amount as a plywood by receiving the impact applied to the first layer even when the impact is applied from the first layer side of the plywood. Is done. For this reason, the decorative material of this invention which has a design layer on the 1st layer of the said plywood can show the outstanding impact resistance combined with having the design layer of a synthetic resin decorative sheet.
- the decorative material of the present invention has a thick backer layer of, for example, 1 mm or more when laminated with a design layer of a synthetic resin decorative sheet. There is no need to use a decorative sheet, warping and cracking caused by the difference in linear expansion coefficient between the design layer of the synthetic resin decorative sheet and the plywood are suppressed, and the design is excellent.
- plywood means a single board (tanban) cut by a rotary lace, a slicer, etc., and the plurality of single boards are bonded by making the fiber directions of the single boards substantially perpendicular to each other.
- the single plate is laminated so that three or more odd-numbered sheets are orthogonal to each other.
- specific gravity in the present specification is a value measured by the following measuring method. That is, the plywood is cut out to a certain size, for example, 10 ⁇ 10 cm (FIG. 9A). The surface area of the plywood at this time is defined as S (cm 2 ). In the case of the above-mentioned 10 ⁇ 10 cm, S is 100 cm 2 . The cut plywood is left to dry in a dryer at a temperature of 103 ⁇ 2 ° C. for 72 hours. Next, when the layer to be measured for measuring the specific gravity is located on the outermost layer (for example, the first layer), the weight m0 (g) and the thickness h0 (cm) of the plywood after drying are measured.
- the layer to be measured for measuring the specific gravity is located on the outermost layer (for example, the first layer), the weight m0 (g) and the thickness h0 (cm) of the plywood after drying are measured.
- the layer to be measured (first layer) is shaved in the thickness direction from the surface to remove a part of the layer to be measured, thereby reducing the thickness of the layer to be measured (FIG. 9B).
- the weight m1 (g) and thickness h1 (cm) of the plywood after removing a part of the layer to be measured are measured. From the measured value, the specific gravity G of the layer to be measured is measured based on the following formula.
- G [m0 (g) ⁇ m1 (g)] / [(h0 (cm) ⁇ h1 (cm)) ⁇ S (cm 2 )] (Formula)
- the unit is g / cm 3 , but the unit is omitted and the specific gravity is used.
- the layer to be measured is not located on the outermost layer of the plywood (for example, the second layer 22 in FIG. 10A)
- the layer for example, the first layer stacked on the outermost layer side of the layer to be measured 1 layer
- the layer to be measured is made the outermost layer (FIG. 10 (b))
- a part of the layer to be measured is removed by the measurement method described above and measured.
- the specific layer may be measured by reducing the thickness of the target layer (FIG. 10C).
- the specific gravity is basically measured at the part excluding the nodes.
- the plywood constituting the decorative material of the present invention has at least a first layer and a second layer in order from the top.
- the first layer and the second layer are wood materials.
- each layer will be described.
- the type of tree is not limited as long as the first layer has a specific gravity smaller than that of the second layer.
- the first layer is preferably a hardwood veneer.
- Specific examples of the first layer include poplar veneers, eucalyptus veneers, and Falkata veneers that are fast-growing trees.
- a poplar single plate is more preferable because it has a relatively high specific gravity among low specific gravity, excellent surface smoothness, and few nodes.
- a poplar single plate using Chinese poplar can be preferably used as the poplar single plate.
- poplar means the American willow tree represented by the willow family, the American black willow, the European black willow, etc., and those breeding species and interspecific hybrids are also included. Also included are American whitewoods called yellow poplars of magnolia family.
- Choinese poplar is often referred to as Italian poplar or warm temperate poplar, and means an early-population poplar that has been bred and grown in China.
- the specific gravity of the first layer is not particularly limited as long as it is smaller than the specific gravity of the second layer, which will be described later, but the specific gravity of the first layer is preferably less than 0.50, and the preferred lower limit is more than 0.40 and 0.42 As mentioned above, 0.45 or more is mentioned, As a preferable upper limit, 0.48 or less and 0.47 or less are mentioned. In addition, as a range of specific gravity of a 1st layer, 0.42 or more and 0.47 or less are especially preferable. Due to the specific gravity within the above-mentioned range, the decorative material of the present invention exhibits much more excellent impact resistance.
- the thickness of the first layer is less than 1.0 mm.
- the thickness of the first layer is preferably 0.9 mm or less, and more preferably 0.8 mm or less.
- the thickness of the first layer is preferably 0.3 mm or more, more preferably 0.5 mm or more, still more preferably 0.6 mm or more, and may occur due to the difference in shrinkage between the first layer and the second layer. In order to avoid the characteristic crack, 0.7 mm or more is particularly preferable.
- the thickness of the first layer is in the above range, it is further suppressed that minor irregularities such as nodes, grain, cracks, and chips of the second layer are visually recognized from the surface of the decorative material.
- a range of the thickness of a 1st layer 0.6 mm or more and 0.9 mm or less are especially preferable.
- the first layer preferably has no conspicuous nodes on the surface, and more preferably has no nodes.
- the smoothness of the surface of the plywood is further improved by making the nodes on the surface of the first layer inconspicuous or having no nodes. Further, even if the first layer has a node on the surface, it is preferable that the first layer has fewer nodes than the second layer.
- a 2nd layer if the specific gravity is larger than the specific gravity of a 1st layer, the kind of the tree will not be limited.
- a eucalyptus veneer is preferable in that it has a relatively high specific gravity.
- the specific gravity of the second layer is greater than the specific gravity of the first layer.
- the specific gravity of the second layer is preferably 0.50 or more, and more preferably 0.55 or more.
- 0.90 or less is preferable, 0.75 or less is more preferable, 0.65 or less is further more preferable, and also less than 0.60 is especially preferable. Due to the specific gravity within the above-described range, the plywood constituting the decorative material of the present invention exhibits even more excellent impact resistance and excellent machinability during processing.
- 0.55 or more and less than 0.60 are especially preferable.
- the thickness of the second layer is not particularly limited, but is preferably 1.0 mm or more, and more preferably 1.3 mm or more. When the lower limit of the thickness of the second layer is within the above range, the decorative material of the present invention exhibits even more excellent impact resistance.
- the second layer may have a node on at least a part of the surface. Since the plywood has the first layer, even if the second layer has a node on at least a part of the surface, it is suppressed from being projected on the surface of the plywood, and is projected on the surface of the decorative material. Is also suppressed.
- the layer structure of the plywood is not particularly limited as long as it has at least a first layer and a second layer, and some single plates, which are thin plates obtained by thinly cutting a plywood log, are bonded together.
- some single plates which are thin plates obtained by thinly cutting a plywood log, are bonded together.
- the above-mentioned plywood it is more preferable that the above-mentioned single plate is bonded so that odd-numbered sheets are so that the grain is mutually orthogonal.
- the plywood may have a layer structure having other wood layers.
- the first layer is the outermost surface
- the second layer is laminated below the first layer
- another wood layer is laminated thereunder to have an odd wood layer.
- a layer structure is mentioned.
- a plywood having a first layer 11 / second layer 12 / third layer 13 / fourth layer 14 / fifth layer 15 in order from the top like the plywood 1 in FIG.
- the number of wood layers of plywood is not limited to 5 or 7 layers, and may be any number, but 3 to 9 layers are preferable, and 5 to 7 layers are more preferable. Moreover, it is preferable that the number of the wood layers of the said plywood is an odd number at the point which can suppress further the curvature of a plywood and a decorative material.
- the total thickness of the plywood is not particularly limited, and is preferably 5.0 mm or more and 30.0 mm or less, and more preferably 5.5 mm or more as a lower limit, considering the ease of construction when used as an interior material. 5 mm or more and 9.0 mm or more are particularly preferable. Moreover, as an upper limit, 15.5 mm or less is more preferable, and 12.5 mm or less is still more preferable.
- the thickness is particularly preferably 9.0 mm or more and 12.5 mm or less. In this case, the number of the wood layers is preferably 5 to 7, and more preferably 7 layers. In the case of a thickness of about 15 mm, 9 layers are particularly preferable.
- the thickness of a general wood flooring material such as a flooring material in a living room or a corridor is usually about 8 mm, about 12 mm, about 15 mm, or the like.
- the total layer thickness including the design layer is generally about 8 mm, about 12 mm, and about 15 mm.
- the same type of wood veneer is used as the first layer 11 on the front surface called “face” and the fifth layer 15 on the back surface called “back”.
- the same type of wood veneer may be used, or the third layer 13 may be made of the same type of wood veneer as the first layer 11 and the fifth layer 15. Also good.
- the second layer 12 and the fourth layer 14 use the same type of wood veneer. Examples of the specific layer structure of the plywood in FIG.
- a layer structure including a poplar veneer / eucalyptus veneer / poplar veneer / eucalyptus veneer / poplar veneer examples include a layer structure having a eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / poplar veneer.
- the same type of single veneer is used as the first layer 21 on the front surface called the face and the seventh layer 27 on the back surface called the back.
- the same type of trees may be used as the second layer 22 to the sixth layer 26, but the same type of trees as the first layer 21, the third layer 23, the fifth layer 25, and the seventh layer 27. It is preferable to use a single plate.
- the second layer 22, the fourth layer 24, and the sixth layer 26 use the same type of tree veneer.
- Composition layer structure with poplar veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / poplar veneer, poplar veneer / eucalyptus veneer / eucalyptus veneer / poplar veneer
- poplar veneer / eucalyptus veneer / eucalyptus veneer / poplar veneer For example, a layer structure having a / eucalyptus veneer / eucalyptus veneer / poplar veneer.
- the decorative material of the present invention has a design layer on the first layer of the plywood. That is, in the decorative material of the present invention, the design layer is laminated on the surface of the first layer opposite to the side on which the second layer is laminated.
- FIG. 3 shows an example of the cosmetic material.
- FIG. 3 is a two-side view illustrating an example of the decorative material of the present invention.
- the decorative material shown in FIG. 3 is formed by laminating the design layer 5 on the first layer 21 of the plywood 2.
- the decorative material shown in FIG. 3 is made of sane (actual) processing on the plywood, and has a male sap A that is a convex part protruding toward the upper side of the paper surface, and a concave part formed on the lower side of the paper surface. It has a certain female sa Amsterdam B.
- the cosmetic material shown in FIG. 3 can be constructed with the sans by combining the male sane A and the female sane B by the sane processing, and is more suitable as a decorative material for floors. Can be used.
- the design layer is a synthetic resin decorative sheet.
- the synthetic resin decorative sheet is a decorative sheet in which almost all layers constituting the decorative sheet are made of synthetic resin, and include a thermoplastic resin and a thermosetting resin.
- Some layers such as a protective layer may contain additives such as inorganic fillers and organic substances other than synthetic resins.
- the total thickness of the design layer is 0.20 mm or more. If the total thickness of the design layer is less than 0.20 mm, the decorative material is inferior in impact resistance.
- the total thickness of the design layer is preferably 0.25 mm or more, and more preferably 0.30 mm or more. When the lower limit of the total thickness of the design layer is within the above range, the impact resistance of the decorative material is further improved.
- the total thickness of the design layer is 0.70 mm or less. If the total thickness of the design layer exceeds 0.70 mm, the decorative material may be warped.
- the total thickness of the design layer is preferably 0.6 mm or less, and more preferably 0.45 mm or less. When the upper limit of the total thickness of the design layer is within the above range, warping of the decorative material can be further suppressed. In addition, 0.25 mm or more and 0.45 mm or less are particularly preferable.
- the design layer is a synthetic resin decorative sheet.
- a synthetic resin decorative sheet As the design layer, the decorative material of the present invention can exhibit excellent impact resistance, and is excellent in weather resistance and water resistance.
- the structure of the synthetic resin decorative sheet will be specifically described.
- the structure of the synthetic resin decorative sheet is not particularly limited, and for example, a base sheet, a pattern layer (solid ink layer / pattern ink layer), a transparent adhesive layer, a transparent resin layer, and a surface protective layer are preferable. .
- a substrate sheet, a pattern layer (solid ink layer / pattern ink layer), and a surface protective layer in this order can also be used.
- the synthetic resin decorative sheet 6 (a) and the synthetic resin decorative sheet 6 (b) of FIG. It is also preferable to have a pattern layer (solid ink layer / pattern ink layer) 613, a transparent adhesive layer (not shown), a transparent resin layer 614 and a surface protective layer 615 in this order.
- the synthetic resin backer layer is laminated so as to be positioned on the back side of the design layer, and is made of a synthetic resin that alleviates the influence of surface irregularities such as a wooden substrate and imparts impact resistance to the design layer itself. It is a layer and constitutes a part of the design layer.
- Substrate sheet As a base material sheet, the 1 type, or 2 or more types of laminated body of synthetic resin sheets, such as polyolefin, polyester, polyacryl, polyamide, polyurethane, and polystyrene, is mentioned.
- the thickness of the base sheet is preferably about 20 to 300 ⁇ m.
- the substrate sheet may be colored as necessary. Further, the surface may be subjected to surface treatment such as corona discharge treatment, plasma treatment, ozone treatment or the like, or a primer which is a base coating for improving the adhesion with an adjacent layer may be applied.
- the pattern layer is composed of a pattern ink layer and / or a solid ink layer.
- the pattern layer can be formed by a printing method such as gravure printing, offset printing or silk screen printing. Examples of the pattern of the pattern ink layer include a wood grain pattern, a stone pattern, a cloth pattern, a skin pattern, a geometric pattern, characters, symbols, line drawings, various abstract patterns, and the like.
- the solid ink layer is obtained by solid printing of colored ink.
- the pattern layer is composed of one or both of a pattern ink layer and a solid ink layer.
- chlorinated polyolefin such as chlorinated polyethylene and chlorinated polypropylene
- polyester polyurethane composed of isocyanate and polyol
- polyacryl polyvinyl acetate, polyvinyl chloride, and vinyl chloride-vinyl acetate
- a polymer, a cellulose-based resin, a polyamide-based resin, or the like may be used alone or in combination, and a pigment, a solvent, various auxiliary agents, and the like may be added thereto to make an ink.
- polyester polyurethane composed of isocyanate and polyol, polyacryl, polyamide-based resin, and the like is preferable.
- the transparent adhesive layer is provided between the pattern layer and the transparent resin layer as necessary.
- the transparent adhesive layer can be obtained, for example, by applying and drying a known dry lamination adhesive such as a two-component curable urethane resin.
- the thickness of the transparent adhesive layer after drying is preferably about 0.1 to 30 ⁇ m, more preferably about 1 to 5 ⁇ m.
- a transparent resin layer will not be specifically limited if it is a transparent resin layer, For example, it can form suitably with a transparent thermoplastic resin.
- Synthetic resins such as polymers, ionomers, acrylic acid esters, and methacrylic acid esters are exemplified.
- polyolefin resins such as polypropylene are preferable.
- the transparent resin layer may be colored.
- a colorant may be added to the thermoplastic resin.
- pigments or dyes used in the picture layer can be used.
- fillers for the transparent resin layer, fillers, matting agents, foaming agents, flame retardants, lubricants, antistatic agents, antioxidants, UV absorbers, light stabilizers, radical scavengers, soft components (eg rubber)
- Various additives such as may be included.
- the surface protective layer (transparent surface protective layer) is provided for imparting surface physical properties such as scratch resistance, abrasion resistance, water resistance, and stain resistance required for the design layer.
- the resin forming the surface protective layer preferably includes at least one curable resin such as a thermosetting resin or an ionizing radiation curable resin.
- ionizing radiation curable resins are preferable from the viewpoint of high surface hardness, productivity, and the like.
- an electron beam curable resin is most preferable.
- thermosetting resins include unsaturated polyester resins, polyurethane resins (including two-component curable polyurethane), epoxy resins, amino alkyd resins, phenol resins, urea resins, diallyl phthalate resins, melamine resins, guanamine resins, and melamines.
- unsaturated polyester resins polyurethane resins (including two-component curable polyurethane)
- epoxy resins include epoxy resins, amino alkyd resins, phenol resins, urea resins, diallyl phthalate resins, melamine resins, guanamine resins, and melamines.
- -Urea cocondensation resin silicon resin, polysiloxane resin and the like.
- a curing agent such as a crosslinking agent and a polymerization initiator and a polymerization accelerator can be added to the resin.
- curing agents isocyanates, organic sulfonates, etc. can be added to unsaturated polyester resins, polyurethane resins, etc., organic amines, etc. can be added to epoxy resins, peroxides such as methyl ethyl ketone peroxide, azoisobutyl nitrile, etc.
- a radical initiator can be added to the unsaturated polyester resin.
- Examples of the method for forming the surface protective layer with a thermosetting resin include a method in which a solution of a thermosetting resin is applied by a coating method such as a roll coating method or a gravure coating method and then dried and cured.
- the coating amount of the solution is about 5 to 50 ⁇ m, preferably about 5 to 40 ⁇ m in terms of solid content.
- the ionizing radiation curable resin is not limited as long as it is a resin that undergoes a crosslinking polymerization reaction upon irradiation with ionizing radiation and changes to a three-dimensional polymer structure.
- one or more prepolymers, oligomers and monomers having a polymerizable unsaturated bond or epoxy group that can be crosslinked by irradiation with ionizing radiation in the molecule can be used.
- examples thereof include acrylate resins such as urethane acrylate, polyester acrylate, and epoxy acrylate; silicon resins such as siloxane; polyester resins; epoxy resins and the like.
- Examples of the ionizing radiation include ultraviolet rays (near ultraviolet rays, vacuum ultraviolet rays, etc.), X-rays, electron beams, ion beams, etc. Among them, ultraviolet rays and electron beams are preferable, and electron beams are more preferable.
- an ultra-high pressure mercury lamp As the ultraviolet light source, an ultra-high pressure mercury lamp, a high pressure mercury lamp, a low pressure mercury lamp, a carbon arc lamp, a black light fluorescent lamp, or a metal halide lamp can be used.
- the wavelength of ultraviolet light is about 190 to 380 nm.
- the electron beam source for example, various electron beam accelerators such as a cockcroft-wald type, a bandegraft type, a resonant transformer type, an insulating core transformer type, a linear type, a dynamitron type, and a high frequency type can be used.
- the energy of the electron beam is preferably about 100 to 1000 keV, more preferably about 100 to 300 keV.
- the irradiation amount of the electron beam is preferably about 2 to 15 Mrad.
- the ionizing radiation curable resin is sufficiently cured when irradiated with an electron beam, but it is preferable to add a photopolymerization initiator (sensitizer) when cured by irradiation with ultraviolet rays.
- a photopolymerization initiator sensitizer
- Photopolymerization initiators in the case of resin systems having radically polymerizable unsaturated groups include, for example, acetophenones, benzophenones, thioxanthones, benzoin, benzoin methyl ether, Michler benzoylbenzoate, Michler ketone, diphenyl sulfide, dibenzyl disulfide , Diethyl oxide, triphenylbiimidazole, isopropyl-N, N-dimethylaminobenzoate and the like can be used.
- a resin system having a cationic polymerizable functional group for example, at least one kind such as an aromatic diazonium salt, an aromatic sulfonium salt, a metallocene compound, a benzoin sulfonic acid ester, and a freeloxysulfoxonium diallyl iodosyl salt.
- an aromatic diazonium salt an aromatic sulfonium salt, a metallocene compound, a benzoin sulfonic acid ester, and a freeloxysulfoxonium diallyl iodosyl salt.
- the addition amount of the photopolymerization initiator is not particularly limited, but is generally about 0.1 to 10 parts by mass with respect to 100 parts by mass of the ionizing radiation curable resin.
- a solution of an ionizing radiation curable resin may be applied by a coating method such as a gravure coating method or a roll coating method.
- the coating amount of the solution is about 5 to 50 ⁇ m, preferably about 5 to 40 ⁇ m, as a solid content.
- an inorganic filler may be blended.
- inorganic fillers include powdered aluminum oxide, silicon carbide, silicon dioxide, calcium titanate, barium titanate, magnesium pyroborate, zinc oxide, silicon nitride, zirconium oxide, chromium oxide, iron oxide, boron nitride, Examples include diamond, gold sand and glass fiber.
- the amount of the inorganic filler added is about 1 to 80 parts by mass with respect to 100 parts by mass of the ionizing radiation curable resin.
- the synthetic resin decorative sheet is synthesized on the lowermost layer of the synthetic resin decorative sheets 6 (a) and 6 (b), that is, on the plywood side of the design layer. It is preferable to have a resin backer layer 611. By having the synthetic resin backer layer, the impact resistance of the decorative material of the present invention is further improved.
- Examples of the resin constituting the synthetic resin backer layer include polypropylene, ethylene-vinyl alcohol copolymer, polyethylene, polymethylpentene, polyethylene terephthalate, polyalkylene terephthalate having high heat resistance [for example, a part of ethylene glycol is 1 Polyethylene terephthalate substituted with 1,4-cyclohexanedimethanol, diethylene glycol, etc., so-called trade name PET-G (manufactured by Eastman Chemical Company)], polybutylene terephthalate, polyethylene naphthalate, polyethylene naphthalate-isophthalate copolymer, Amorphous polyester (A-PET), polycarbonate, polyarylate, polyimide, polystyrene, polyamide, ABS and the like can be mentioned. These resins can be used alone or in combination of two or more.
- Martens hardness of the synthetic resin backer layer is preferably 20 ⁇ 350N / mm 2, more preferably 50 ⁇ 300N / mm 2, more preferably 50 ⁇ 250N / mm 2, particularly preferably 75 ⁇ 250N / mm 2.
- the impact resistance of the decorative material of the present invention is further improved.
- the upper limit of the Martens hardness of the synthetic resin backer layer is within the above range, the cohesive cracking of the plywood of the decorative material of the present invention is further suppressed.
- the Martens hardness is a value measured using a surface film physical property tester (PICODETOR HM-500, manufactured by Fisher Instruments Co., Ltd.), and a specific measurement method is as follows. .
- a diamond indenter (Vickers indenter) shown in FIG. 5 (a)
- a diamond indenter is pushed into a measurement sample as shown in FIG. 5 (b), and a pyramidal indentation h formed on the surface is formed.
- the surface area A (mm 2 ) is calculated from the length of the diagonal line, and the hardness is obtained by dividing the test load F (N).
- the indentation condition is that at room temperature (laboratory environmental temperature), as shown in the image diagram of FIG. 5C, first, a load of 0 to 5 mN is first applied for 10 seconds, and then a load of 5 mN is held for 5 seconds. Finally, unloading from 5 to 0 mN is performed in 10 seconds. And the hardness calculated
- the Martens hardness of the cross section of the synthetic resin backer layer was measured.
- the synthetic resin decorative sheet is embedded in a resin (cold curing type epoxy two-component curable resin), allowed to stand at room temperature for 24 hours or more and then cured, and then the cured embedded sample is mechanically polished.
- the cross section of the synthetic resin backer layer was exposed, and the Martens hardness of the cross section was measured by pushing a diamond indenter into the cross section.
- the Martens hardness of the synthetic resin backer layer can be appropriately set by 1) mixing a plurality of resin components, 2) adding an elastomer to the resin, or the like.
- the thickness of the synthetic resin backer layer is preferably 0.10 to 0.60 mm, more preferably 0.13 or more and 0.15 or more as the lower limit, and the upper limit is 0.45 or less, 0.30 or less, 0.25 or less and 0.20 or less are more preferable.
- the lower limit of the thickness of the synthetic resin backer layer is within the above range, the impact resistance of the decorative material of the present invention is further improved.
- the upper limit of the thickness of the synthetic resin backer layer is within the above range, warping of the decorative material of the present invention is further suppressed. Note that 0.13 to 0.25 is a particularly preferable range.
- Lamination of each layer is performed by, for example, forming a pattern layer (solid ink layer, pattern ink layer) on one surface of the base sheet by printing and then laminating a transparent resin on the pattern layer by a T-die extrusion method or the like, or A transparent resin layer is laminated by a dry lamination method via a known dry lamination adhesive such as a two-component curable urethane resin, a surface protective layer is formed to produce a design layer intermediate, and T-die extrusion It can carry out by the method of laminating
- the synthetic resin decorative sheet may be formed with an uneven pattern by embossing from the transparent resin layer side or the surface protective layer side.
- the concavo-convex pattern can be formed by heating press, hairline processing or the like.
- Examples of the uneven pattern include a conduit groove, a stone plate surface unevenness, a cloth surface texture, a satin finish, a grain, a hairline, and a line groove.
- the decorative material of the present invention has the above-described configuration, it is excellent in impact resistance, and the visual recognition from the surface of the design layer of the warp and the appearance defect on the surface of the plywood is suppressed, and the decorative material is excellent.
- the manufacturing method of the decorative material is not particularly limited, and can be manufactured by a conventionally known method.
- stacking a design layer on the 1st layer of a plywood is mentioned, for example.
- the method of laminating the design layer on the first layer of the plywood is not particularly limited, and examples thereof include a method of laminating these layers via an adhesive layer.
- the adhesive that forms the adhesive layer include polyvinyl acetate, polyvinyl chloride, vinyl chloride / vinyl acetate copolymer, urethane, acrylic, urethane / acrylic, urethane / acrylic copolymer, and ethylene / acrylic acid copolymer.
- Examples thereof include water-soluble emulsion systems, solvent systems, and reactive hot melt adhesives exemplified by PUR, which contain polymers, ionomers, butadiene / acrylonitrile rubbers, neoprene rubbers, natural rubbers and the like as active ingredients.
- a water-soluble emulsion adhesive and a reactive hot-melt adhesive are preferable from the viewpoint of workability, and a reactive hot-melt adhesive is more preferable from the viewpoint of excellent appearance after the lamination process.
- the curing method for the adhesive include one-component curing, two-component curing, heat curing, moisture curing, and ionizing radiation curing such as electron beam and ultraviolet light.
- the thickness of the adhesive layer is not limited, but is preferably about 0.1 to 50 ⁇ m.
- the design layer is laminated on the first layer of the plywood, and the decorative material is manufactured.
- the plywood used for a decorative material can be manufactured with the following manufacturing methods, for example.
- a method for producing a plywood having a first layer and a second layer in order from at least the top (I) Step 1 for laminating the first layer and the second layer, and (II) After the step 1, the surface of the first layer is polished so that the thickness of the first layer is 1.0 mm. Having step 2 of adjusting to less than (1) The first layer and the second layer are made of wood. (2) The thickness of the first layer is less than 1.0 mm, (3) The method for producing plywood, wherein the specific gravity of the second layer is larger than the specific gravity of the first layer.
- the manufacturing method of the plywood is referred to as manufacturing method 1.
- the manufacturing method 1 will be described.
- Step 1 is a step of laminating the first layer and the second layer. About the said 1st layer, the said 2nd layer, those thickness, and specific gravity, it is the same as the content demonstrated in the above-mentioned plywood.
- the method for laminating the first layer and the second layer is not particularly limited, and an adhesive is applied and laminated between the first layer and the second layer, and a press machine such as a multistage hot press machine is used. Then, lamination may be performed by hot pressing for about 3 to 7 minutes under conditions of a pressure of about 0.69 to 1.18 MPa and a temperature of about 100 to 130 ° C.
- the plywood When the plywood has the first layer, the second layer, and the other wood layers as shown in FIGS. 1 and 2, the plywood is laminated by applying an adhesive between the layers, and is laminated by the above hot press. That's fine.
- the adhesive used between the layers is not shown in FIGS. 1 and 2 and is omitted. Further, the adhesive layer formed by the adhesive is not included in the layers such as the first to seventh layers forming the plywood described above.
- the adhesive is not particularly limited, and known woodworking adhesives can be widely used.
- adhesives include, for example, polyvinyl acetate, polyvinyl chloride, vinyl chloride-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ionomer, butadiene-acrylonitrile rubber, neoprene rubber, natural rubber and the like as active ingredients.
- thermosetting adhesives include melamine-based, phenol-based, urea-based (such as vinyl acetate-urea) adhesives.
- the first layer, the second layer, and the other wood layer are laminated.
- Step 2 is a step of polishing the surface of the first layer after Step 1 and adjusting the thickness of the first layer to less than 1.0 mm. By laminating the first layer and the second layer in step 1 and then polishing the surface of the first layer in step 2, the thickness of the first layer can be made uniform.
- the polishing method for polishing the surface of the first layer is not particularly limited, and polishing can be performed using a sanding belt, a planar, a buff, a brush, or the like.
- a polishing method using a sanding belt is preferable in that the surface of the first layer after polishing can be smoothed.
- the thickness of the first layer after polishing may be less than 1.0 mm, and the thickness of the first layer before polishing may be 1.0 mm or more.
- the thickness of the first layer before polishing is not particularly limited, and is preferably about 0.8 to 1.3 mm.
- the surface of the first layer may be polished, and the wood layer on the surface opposite to the surface on which the first layer of the produced plywood is laminated may also be polished to adjust the thickness.
- the surface of the first layer 11 is polished and the surface of the fifth layer 15 is also polished. May be.
- the surface of the first layer 21 is polished and the entire surface of the seventh layer 27 is polished. You may grind
- the thickness of the first layer is adjusted to less than 1.0 mm.
- the plywood used for a decorative material can also be manufactured with the following manufacturing methods.
- a method for producing a plywood having a first layer and a second layer in order from at least the top (I) A step of preparing a poplar single plate having an air-dry specific gravity of 0.40 to 0.47 as the first layer and a eucalyptus single plate having an air-dry specific gravity of 0.50 to 0.90 as the second layer. 1, (II) Step 2 of laminating the first layer and the second layer, and (III) The manufacturing method of the plywood which has the process 3 which polishes the surface of the said 1st layer after the said process 2, and adjusts the thickness of the said 1st layer to less than 1.0 mm. This manufacturing method is referred to as manufacturing method 2.
- Step 1 in production method 2 prepares a poplar veneer with an air-dry specific gravity of 0.40 or more and 0.47 or less as the first layer, and a eucalyptus veneer with an air-dry specific gravity of 0.50 or more and 0.90 or less as the second layer. It is a process to do.
- the 1st layer and 2nd layer whose air-dry specific gravity is the said range are prepared, and it uses for the process 2 demonstrated below.
- Steps 2 and 3 in manufacturing method 2 are the same as steps 1 and 2 in manufacturing method 1 described above, except that the first layer and the second layer having an air-dry specific gravity within the above range prepared in step 1 are used. It is.
- a poplar veneer having an air-dry specific gravity of 0.40 or more and 0.47 or less is used for the first layer, and a eucalyptus veneer having an air-dry specific gravity of 0.50 or more and 0.90 or less is used for the second layer.
- a plywood having excellent impact resistance can be produced.
- the air-dry specific gravity means a specific gravity calculated by dividing the weight of wood in the air-dried state by its volume, and the air-dried state has a moisture content of 15%. The state of the wood at the time.
- the plywood used for the decorative material of the present invention can be produced.
- Example 1 (Production of plywood) As a first layer, a poplar single plate having a thickness of 1.3 mm and a specific gravity of 0.43 was prepared by slicing poplar. Moreover, the eucalyptus single board of thickness 2.7mm and specific gravity 0.55 was prepared by slicing eucalyptus as a 2nd layer. Further, poplar single plates similar to the first layer were prepared as the third layer, fifth layer, and seventh layer, and eucalyptus single plates similar to the second layer were prepared as the fourth layer and sixth layer.
- the prepared poplar veneer and eucalyptus veneer are arranged in order from the top to the first to the seventh layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal, the poplar veneer / eucalyptus veneer / Lamination was carried out so as to have a layer structure of poplar single plate / eucalyptus single plate / poplar single plate / eucalyptus single plate / poplar single plate to prepare a laminate of wood layers.
- the laminate of the above wood layers was hot-pressed for 5 minutes under the conditions of a pressure of 0.78 MPa and a temperature of 110 ° C. using a multistage hot press machine, and the layers were bonded together.
- the thickness of the poplar single plate was 1.2 mm
- the thickness of the eucalyptus single plate was 2.5 mm
- the total thickness of the laminate was 12.3 mm.
- the first layer and the seventh layer were sanded and polished so that the thickness of the first layer was 0.9 mm and the total thickness of the plywood was 11.5 mm. That is, each thickness from the first layer to the sixth layer is 0.9 mm / 2.5 mm / 1.2 mm / 2.5 mm / 1.2 mm / 2.5 mm, and by sanding polishing the seventh layer The thickness was adjusted to produce a plywood having a total thickness of 11.5 mm.
- a gravure coating method applies urethane cellulose resin (added 5 parts by weight of hexamethylene diisocyanate to 100 parts by weight of a mixture of urethane and nitrified cotton) on one side of a colored polypropylene film having a thickness of 60 ⁇ m subjected to double-sided corona discharge treatment.
- a back primer layer was formed. The back primer layer was 1 ⁇ m.
- a solid ink layer and a pattern ink layer are sequentially formed by gravure printing using a printing ink containing an acrylic urethane resin (100 parts by weight of acrylic polyol and 5 parts by weight of hexamethylene diisocyanate) as a binder.
- a patterned ink layer was formed.
- the ink layer was 3 ⁇ m.
- a propylene-based resin was heated and melt-extruded with a T-die extruder so as to have a thickness of 80 ⁇ m to form a transparent resin layer.
- the transparent resin layer is subjected to corona discharge treatment, and a surface protective layer is applied to the treated surface by an acrylic urethane-based resin (100 parts by weight of acrylic polyol added with 5 parts by weight of hexamethylene diisocyanate) by a gravure coating method.
- a primer layer was formed.
- the primer layer for the surface protective layer was 1 ⁇ m.
- a urethane acrylate electron beam curable resin is applied onto the primer layer for the surface protective layer by a roll coating method, dried, and then applied to an uncured electron radiation curable resin layer in an environment having an oxygen concentration of 200 ppm or less (
- a surface protective layer made of an electron radiation curable resin was formed by irradiating with an accelerating voltage of 175 KeV and an irradiation amount of 5 Mrad.
- the surface protective layer was 15 ⁇ m.
- embossing is performed from the surface protective layer side with a wood grain conduit embossed plate or a bark / abstract embossed plate with a plate depth of 50 ⁇ m to form a wood grain conduit or bark / abstracted uneven pattern with a thickness of 0.16 mm
- the intermediate of the design layer was obtained.
- a synthetic resin sheet (synthetic resin backer layer) was formed by co-extrusion of A-PET (amorphous polyester) with a T-die extruder.
- the thickness of the synthetic resin backer layer was 0.25 mm, and the Martens hardness was 150 N / mm 2 .
- a synthetic resin backer layer was further laminated on the back primer layer of the design layer intermediate by a dry laminating method with a urethane adhesive layer interposed therebetween to produce a synthetic resin decorative sheet as a design layer.
- the thickness of the synthetic resin decorative sheet was 0.41 mm.
- the synthetic resin decorative sheet is referred to as a decorative sheet (1).
- the surface on the synthetic resin backer layer side of the synthetic resin decorative sheet and the surface on the first layer side of the plywood are bonded together via a reactive hot-melt (PUR) adhesive (thickness 50 ⁇ m), and a predetermined dimension. Cut to (145 mm ⁇ 900 mm) to prepare a decorative material.
- PUR reactive hot-melt
- Example 2 The types and thicknesses of the first and second layers of plywood were as shown in Table 1, and the same single plate as in Example 1 was laminated as the third to seventh layers. That is, the layers from the first layer to the seventh layer were laminated using the same manufacturing method as in Example 1 above, and the thickness was adjusted, so that the poplar single plate 0.8 mm / eucalyptus single plate 2.5 mm / Poplar veneer 1.2mm / eucalyptus veneer 2.5mm / poplar veneer 1.2mm / eucalyptus veneer 2.5mm, plywood The total thickness was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
- Example 3 The types and thicknesses of the first and second layers of plywood were as shown in Table 1, and the same single plate as in Example 1 was laminated as the third to seventh layers. That is, each layer from the first layer to the seventh layer is laminated using the same manufacturing method as in Example 1 above, and the thickness is adjusted, so that the poplar single plate 0.6 mm / eucalyptus single plate 2.5 mm / Poplar veneer 1.2mm / eucalyptus veneer 2.5mm / poplar veneer 1.2mm / eucalyptus veneer 2.5mm, plywood The total thickness was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
- Example 4 The thickness of the transparent resin layer was changed to 60 ⁇ m, and the thickness of the synthetic resin backer layer was changed to 0.20 mm.
- a synthetic resin decorative sheet was prepared in the same manner as in Example 1 with the exception.
- the synthetic resin decorative sheet is referred to as a decorative sheet (2).
- a cosmetic material was produced in the same manner as in Example 3 except that the decorative sheet (2) was used instead of the decorative sheet (1).
- Example 5 The thickness of the transparent resin layer was changed to 60 ⁇ m, and the resin forming the synthetic resin sheet (synthetic resin backer layer) of the synthetic resin decorative sheet was changed to polypropylene resin (PP). The thickness of the synthetic resin backer layer was 0.13 mm, and the Martens hardness was 160 N / mm 2 . Other than that was carried out similarly to Example 1, and created the synthetic resin decorative sheet.
- the synthetic resin decorative sheet is referred to as a decorative sheet (3).
- a cosmetic material was produced in the same manner as in Example 3 except that the decorative sheet (3) was used instead of the decorative sheet (1).
- Example 6 As a first layer, a poplar single plate having a thickness of 1.3 mm and a specific gravity of 0.43 was prepared by slicing poplar. Further, as a second layer, eucalyptus single plates having a thickness of 2.2 mm and a specific gravity of 0.55 were prepared by slicing eucalyptus. Further, a poplar veneer similar to the first layer was prepared as the seventh layer, and eucalyptus veneers similar to the second layer were prepared as the third to sixth layers.
- Poplar veneer / eucalyptus veneer in order from the top to the seventh layer from the first layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal to the prepared poplar veneer and eucalyptus veneer Laminate was prepared so as to have a layer structure of: / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / poplar veneer.
- the laminate of the above wood layers was hot-pressed for 5 minutes under the conditions of a pressure of 0.78 MPa and a temperature of 110 ° C. using a multistage hot press machine, and the layers were bonded together.
- the thickness of the poplar single plate was 1.2 mm
- the thickness of the eucalyptus single plate was 2.0 mm
- the total thickness of the laminate was 12.4 mm.
- the first layer and the seventh layer were sanded and polished so that the thickness of the first layer was 0.8 mm and the total thickness of the plywood was 11.5 mm. That is, each thickness from the first layer to the sixth layer is 0.8 mm / 2.0 mm / 2.0 mm / 2.0 mm / 2.0 mm / 2.0 mm / 2.0 mm, and by sanding polishing the seventh layer The thickness was adjusted to produce a plywood having a total thickness of 11.5 mm. Other than that was carried out similarly to Example 2, and produced the cosmetic material.
- Example 7 (Production of plywood) As a first layer of plywood, a poplar single plate having a thickness of 1.4 mm and a specific gravity of 0.43 was prepared by slicing poplar. As the second layer, a eucalyptus veneer having a thickness of 2.7 mm and a specific gravity of 0.55 was prepared by slicing eucalyptus. Further, poplar single plates similar to the first layer were prepared as the third layer, fifth layer, and seventh layer, and eucalyptus single plates similar to the second layer were prepared as the fourth layer and sixth layer.
- Poplar veneer / eucalyptus veneer in order from the top to the seventh layer from the first layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal to the prepared poplar veneer and eucalyptus veneer
- a laminate of wood layers was prepared so as to have a layer structure of: / poplar single plate / eucalyptus single plate / poplar single plate / eucalyptus single plate / poplar single plate.
- the laminate of the above wood layers was hot-pressed for 5 minutes under the conditions of a pressure of 0.78 MPa and a temperature of 110 ° C. using a multistage hot press machine, and the layers were bonded together.
- the thickness of the poplar single plate was 1.3 mm
- the thickness of the eucalyptus single plate was 2.5 mm
- the total thickness of the laminate was 12.7 mm.
- Table 1 shows the tree types and thicknesses of the first and second layers of plywood. That is, each layer from the first layer to the seventh layer is made of poplar single plate 0.3 mm / eucalyptus single plate 2.5 mm / poplar single plate 1.3 mm / eucalyptus single plate 2.5 mm / poplar single plate 1.3 mm. / The Eucalyptus veneer was 2.5 mm, and the thickness was adjusted by sanding polishing the poplar veneer as the seventh layer, so that the total thickness of the plywood was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
- Example 8 The resin forming the synthetic resin sheet (synthetic resin backer layer) of the synthetic resin decorative sheet was changed to polypropylene resin (PP).
- the thickness of the synthetic resin backer layer was 0.25 mm, and the Martens hardness was 160 N / mm 2 .
- the exception was the same as in Example 1, and a synthetic resin decorative sheet as a design layer was prepared. Let the said synthetic resin decorative sheet be a decorative sheet (4).
- a cosmetic material was produced in the same manner as in Example 1 except that the decorative sheet (4) was used instead of the decorative sheet (1).
- Example 9 As a first layer of plywood, a poplar single plate having a thickness of 3.5 mm and a specific gravity of 0.43 was prepared by slicing poplar. Moreover, the eucalyptus single board of thickness 3.5mm and specific gravity 0.55 was prepared by slicing eucalyptus as a 2nd layer. Further, poplar single plates similar to the first layer were prepared as the third layer and the fifth layer, and eucalyptus single plates similar to the second layer were prepared as the fourth layer.
- Poplar veneer / eucalyptus veneer in order from the top to the 5th layer from the 1st layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal to the prepared poplar veneer and eucalyptus veneer
- a laminate of wood layers was prepared by laminating so as to have a layer structure of / poplar single plate / eucalyptus single plate / poplar single plate.
- the laminate of the above wood layers was hot-pressed for 5 minutes under the conditions of a pressure of 0.78 MPa and a temperature of 110 ° C. using a multistage hot press machine, and the layers were bonded together.
- the thickness of the poplar single plate was 3.2 mm
- the thickness of the eucalyptus single plate was 3.2 mm
- the total thickness of the laminate was 16.0 mm.
- each layer from the first layer to the fifth layer is made of poplar veneer 0.9 mm / eucalyptus veneer 3.2 mm / poplar veneer 3.2 mm / eucalyptus veneer 3.2 mm as the fifth layer.
- the thickness was adjusted by sanding polishing the poplar single plate, so that the total thickness of the plywood was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
- Example 10 Change the adhesive used when bonding the synthetic resin backer layer side of the synthetic resin decorative sheet and the first layer side surface of the plywood to a water-soluble emulsion adhesive, and the coating thickness is 35 ⁇ m
- a cosmetic material was prepared in the same manner as in Example 5 except that it was changed. The following water-soluble emulsion adhesives were used.
- Example 11 The types and thicknesses of the trees of the first layer and the second layer were as shown in Table 1, and the same single plate as in Example 1 was laminated as the third layer to the seventh layer. That is, the layers from the first layer to the seventh layer were laminated using the same manufacturing method as in Example 1 above, and the thickness was adjusted, so that Falkata single plate 0.6 mm / eucalyptus single plate 2.5 mm / Poplar veneer 1.2mm / eucalyptus veneer 2.5mm / poplar veneer 1.2mm / eucalyptus veneer 2.5mm, plywood The total thickness was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
- Example 12 As a first layer, a poplar single plate having a thickness of 1.3 mm and a specific gravity of 0.43 was prepared by slicing poplar. Moreover, the eucalyptus veneer of thickness 2.1mm and specific gravity 0.55 was prepared by slicing eucalyptus as a 2nd layer. Furthermore, a poplar veneer similar to the first layer was prepared as the ninth layer, and eucalyptus veneers similar to the second layer were prepared as the third to eighth layers.
- Poplar veneer / eucalyptus veneer in order from the top to the 9th layer from the first layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal to the prepared poplar veneer and eucalyptus veneer Laminate was prepared to have a layer structure of: / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / poplar veneer.
- the laminate of the above wood layers was hot-pressed for 5 minutes under the conditions of a pressure of 0.78 MPa and a temperature of 110 ° C. using a multistage hot press machine, and the layers were bonded together.
- the thickness of the poplar single plate was 1.2 mm
- the thickness of the eucalyptus single plate was 1.9 mm
- the total thickness of the laminate was 15.7 mm.
- the first layer and the ninth layer were sanded and polished so that the thickness of the first layer was 0.6 mm and the total thickness of the plywood was 14.5 mm. That is, each thickness from the first layer to the eighth layer is 0.6 mm / 1.9 mm / 1.9 mm / 1.9 mm / 1.9 mm / 1.9 mm / 1.9 mm / 1.9 mm / 1.9 mm / 1.9 mm / 1.9 mm, The thickness was adjusted by sanding and polishing 9 layers to produce a plywood having a total thickness of 14.5 mm. Other than that was carried out similarly to Example 4, and produced the cosmetic material.
- Comparative Example 1 (Production of plywood) A plywood was produced in the same manner as in Example 1.
- a veneer veneer having a thickness of 0.20 mm was prepared.
- the veneer and the surface of the plywood on the first layer side were bonded together via a thermosetting vinyl acetate / urea adhesive.
- the intermediate layer which consists of a coating film of 12 g / m ⁇ 2 > was formed on the hardened undercoat layer with the natural roll coat method. Immediately in the air, the intermediate layer was cured by irradiating ultraviolet rays with an electroded ultraviolet lamp. The surface of the cured intermediate layer was polished with No. 360 polishing paper and the powder generated during polishing was removed.
- the top coat layer which consists of a coating film of 10 g / m ⁇ 2 > was formed in the cured intermediate
- the surface coating layer was formed by irradiating the top coat layer with ultraviolet light using an electrodeless ultraviolet lamp to cure it. Cut into predetermined dimensions (145 mm ⁇ 900 mm) to produce a decorative material.
- the thickness of the surface protective layer was 30 ⁇ m.
- Comparative Example 2 The types and thicknesses of the trees of the first layer and the second layer were as shown in Table 1, and the same single plate as in Example 1 was laminated as the third layer to the seventh layer. That is, the layers from the first layer to the seventh wood layer are laminated using the same manufacturing method as in Example 1 above, and the thickness is adjusted, so that the poplar single plate 1.2 mm / poplar single plate 2. 5mm / poplar veneer 1.2mm / eucalyptus veneer 2.5mm / poplar veneer 1.2mm / eucalyptus veneer 2.5mm, and thickness adjusted by sanding polishing the poplar veneer as the seventh layer The total thickness of the plywood was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
- FIG. 7A shows a state before the test of the base 3 and the decorative material having the design layer 5 on the plywood 4, and FIGS.
- substrate 3 and cosmetics after a test are shown, and d has shown the curvature amount.
- FIG. 7C shows the state shown in FIG. 7C
- the decorative material may be placed upside down on the base 3, and the warping amount d may be measured.
- it is evaluation more than B in this test it will be evaluated that there is no problem in actual use.
- Pencil hardness test The flaw resistance performance of each decorative material was evaluated using a pencil hardness tester. The test was conducted in accordance with JIS K5600-5-4 (1999) except that the test machine was set so that a load of 750 g was applied to the tip of the pencil when the test machine was in the horizontal position. Specifically, tests were performed using pencils having HB and H cores in order from the softest core hardness, and evaluated according to the following evaluation criteria. In addition, if it is B or more evaluation in this test, it can be evaluated that there is no problem in actual use.
- Reference example 1 A plywood identical to the plywood used in Example 1 was produced and used as the plywood of Reference Example 1.
- Reference example 2 A plywood identical to the plywood used in Example 2 was produced and used as the plywood of Reference Example 2.
- Reference example 3 A plywood identical to the plywood used in Example 3 was produced and used as the plywood of Reference Example 3.
- Reference example 4 A plywood identical to the plywood used in Example 7 was produced and used as the plywood of Reference Example 4.
- Reference Example 5 A plywood identical to the plywood used in Comparative Example 2 was produced and used as the plywood of Reference Example 5.
- Reference Example 6 A plywood identical to the plywood used in Example 9 was produced and used as the plywood of Reference Example 6.
- Reference Example 7 A plywood identical to the plywood used in Example 11 was produced and used as the plywood of Reference Example 7.
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Abstract
Description
1.少なくとも上から順に第1層及び第2層を有する合板の、前記第1層の上に意匠層を有する化粧材であって、
(1)前記第1層及び前記第2層は木質材であり、
(2)前記第1層の厚みは1.0mm未満であり、
(3)前記第2層の比重は、前記第1層の比重より大きく、
(4)前記意匠層は、総厚みが0.20以上0.70mm以下の合成樹脂製化粧シートである、
ことを特徴とする化粧材。
2.前記合成樹脂製化粧シートの厚みは0.25mm以上0.45mm以下である、項1に記載の化粧材。
3.前記合成樹脂製化粧シートは、前記合板側に合成樹脂製バッカー層を有する、項1に記載の化粧材。
4.前記合成樹脂製バッカー層は、マルテンス硬さが50~300N/mm2である、項3に記載の化粧材。
5.前記合成樹脂製化粧シートは、最表層が電離放射線硬化型樹脂層である、項1に記載の化粧材。
6.前記合成樹脂製化粧シートは、前記電離放射線硬化型樹脂層が電子線硬化型樹脂層である、項5に記載の化粧材。
7.前記第1層はポプラ単板であり、前記第2層はユーカリ単板である、項1に記載の化粧材。
8.前記第1層は中国産ポプラ単板である、項1に記載の化粧材。
9.前記第1層は、広葉樹単板である、項1に記載の化粧材。
10.前記第1層の比重は0.50未満であり、前記第2層の比重は0.50以上である、項1に記載の化粧材。
11.前記第1層の厚みは0.6mm以上0.9mm以下である、項1に記載の化粧材。
12.前記第2層は、前記第1層の側の表面の少なくとも一部に節を有しており、前記第1層の節は、前記第2層の節より少ない、項1に記載の化粧材。
13.前記合板の層数は、5層又は7層である、項1に記載の化粧材。
14.床用化粧材である、項1に記載の化粧材。
15.項1に記載の化粧材の意匠層用に用いられる合成樹脂製化粧シート。 That is, the present invention relates to the following cosmetic materials.
1. A decorative material having a design layer on the first layer of a plywood having a first layer and a second layer in order from the top,
(1) The first layer and the second layer are made of wood.
(2) The thickness of the first layer is less than 1.0 mm,
(3) The specific gravity of the second layer is greater than the specific gravity of the first layer,
(4) The design layer is a synthetic resin decorative sheet having a total thickness of 0.20 to 0.70 mm.
A cosmetic material characterized by that.
2.
3.
4).
5).
6).
7).
8).
9.
10.
11.
12
13.
14
15. Item 10. A synthetic resin decorative sheet used for the design layer of the decorative material according to
本発明の化粧材は、少なくとも上から順に第1層及び第2層を有する合板の、前記第1層の上に意匠層を有する化粧材であって、(1)前記第1層及び前記第2層は木質材であり、(2)前記第1層の厚みは1.0mm未満であり、(3)前記第2層の比重は、前記第1層の比重より大きく、(4)前記意匠層は、総厚みが0.20以上0.70mm以下であることを特徴とする。 1. The decorative material of the present invention is a decorative material having a design layer on the first layer of a plywood having at least a first layer and a second layer in order from the top, wherein (1) the first layer and The second layer is a wood material, (2) the thickness of the first layer is less than 1.0 mm, (3) the specific gravity of the second layer is greater than the specific gravity of the first layer, (4) The design layer has a total thickness of 0.20 or more and 0.70 mm or less.
G=[m0(g)-m1(g)]/[(h0(cm)-h1(cm))×S(cm2)] (式)
なお、上記式においては、単位はg/cm3であるが、当該単位を省略して比重とする。 In addition, “specific gravity” in the present specification is a value measured by the following measuring method. That is, the plywood is cut out to a certain size, for example, 10 × 10 cm (FIG. 9A). The surface area of the plywood at this time is defined as S (cm 2 ). In the case of the above-mentioned 10 × 10 cm, S is 100 cm 2 . The cut plywood is left to dry in a dryer at a temperature of 103 ± 2 ° C. for 72 hours. Next, when the layer to be measured for measuring the specific gravity is located on the outermost layer (for example, the first layer), the weight m0 (g) and the thickness h0 (cm) of the plywood after drying are measured. Next, the layer to be measured (first layer) is shaved in the thickness direction from the surface to remove a part of the layer to be measured, thereby reducing the thickness of the layer to be measured (FIG. 9B). The weight m1 (g) and thickness h1 (cm) of the plywood after removing a part of the layer to be measured are measured. From the measured value, the specific gravity G of the layer to be measured is measured based on the following formula.
G = [m0 (g) −m1 (g)] / [(h0 (cm) −h1 (cm)) × S (cm 2 )] (Formula)
In the above formula, the unit is g / cm 3 , but the unit is omitted and the specific gravity is used.
本発明の化粧材を構成する合板は、少なくとも上から順に第1層及び第2層を有する。本発明の化粧材において、第1層及び第2層は木質材である。以下、各層について説明する。 [plywood]
The plywood constituting the decorative material of the present invention has at least a first layer and a second layer in order from the top. In the decorative material of the present invention, the first layer and the second layer are wood materials. Hereinafter, each layer will be described.
第1層としては、後述するように、第2層の比重よりも比重が小さければその樹木の種類は限定されない。第1層としては、広葉樹単板が好ましい。第1層としては、具体的には、早生樹であるポプラ単板、ユーカリ単板、ファルカタ単板等が挙げられる。これらの中でも、低比重の中でも比較的比重が高く、表面の平滑性に優れ、節が少ない点で、ポプラ単板がより好ましい。また、ポプラ単板としては、中国産ポプラを用いたポプラ単板を好適に用いることができる。 (First layer)
As will be described later, the type of tree is not limited as long as the first layer has a specific gravity smaller than that of the second layer. The first layer is preferably a hardwood veneer. Specific examples of the first layer include poplar veneers, eucalyptus veneers, and Falkata veneers that are fast-growing trees. Among these, a poplar single plate is more preferable because it has a relatively high specific gravity among low specific gravity, excellent surface smoothness, and few nodes. Moreover, as the poplar single plate, a poplar single plate using Chinese poplar can be preferably used.
第2層としては、比重が第1層の比重よりも大きければその樹木の種類は限定されない。第2層としては、比較的高比重である点で、ユーカリ単板が好ましい。 (Second layer)
As a 2nd layer, if the specific gravity is larger than the specific gravity of a 1st layer, the kind of the tree will not be limited. As the second layer, a eucalyptus veneer is preferable in that it has a relatively high specific gravity.
本発明の化粧材は、上記合板の第1層上に意匠層を有している。すなわち、本発明の化粧材は、第1層の、第2層が積層される側とは反対側の面に、意匠層が積層されている。 [Design layer]
The decorative material of the present invention has a design layer on the first layer of the plywood. That is, in the decorative material of the present invention, the design layer is laminated on the surface of the first layer opposite to the side on which the second layer is laminated.
基材シートとしては、ポリオレフィン、ポリエステル、ポリアクリル、ポリアミド、ポリウレタン、ポリスチレン等の合成樹脂製シート、の1種又は2種以上の積層体が挙げられる。 (Substrate sheet)
As a base material sheet, the 1 type, or 2 or more types of laminated body of synthetic resin sheets, such as polyolefin, polyester, polyacryl, polyamide, polyurethane, and polystyrene, is mentioned.
絵柄層は、柄インキ層及び/又はベタインキ層から構成される。絵柄層は、グラビア印刷、オフセット印刷、シルクスクリーン印刷等の印刷法により形成できる。柄インキ層の模様は、例えば、木目模様、石目模様、布目模様、皮紋模様、幾何学模様、文字、記号、線画、各種抽象模様等が挙げられる。ベタインキ層は、着色インキのベタ印刷により得られる。絵柄層は、柄インキ層及びベタインキ層の片方又は両方から構成される。 (Picture layer)
The pattern layer is composed of a pattern ink layer and / or a solid ink layer. The pattern layer can be formed by a printing method such as gravure printing, offset printing or silk screen printing. Examples of the pattern of the pattern ink layer include a wood grain pattern, a stone pattern, a cloth pattern, a skin pattern, a geometric pattern, characters, symbols, line drawings, various abstract patterns, and the like. The solid ink layer is obtained by solid printing of colored ink. The pattern layer is composed of one or both of a pattern ink layer and a solid ink layer.
透明性接着剤層は、必要に応じて、絵柄層と透明性樹脂層との間に設けられる。透明性接着剤層は、例えば、2液硬化型ウレタン樹脂等の公知のドライラミネーション用接着剤を塗布・乾燥させることにより得られる。 (Transparent adhesive layer)
The transparent adhesive layer is provided between the pattern layer and the transparent resin layer as necessary. The transparent adhesive layer can be obtained, for example, by applying and drying a known dry lamination adhesive such as a two-component curable urethane resin.
透明性樹脂層は、透明性の樹脂層であれば特に限定されず、例えば、透明性の熱可塑性樹脂により好適に形成できる。 (Transparent resin layer)
A transparent resin layer will not be specifically limited if it is a transparent resin layer, For example, it can form suitably with a transparent thermoplastic resin.
表面保護層(透明性表面保護層)は、意匠層に要求される耐擦傷性、耐摩耗性、耐水性、耐汚染性等の表面物性を付与するために設けられる。この表面保護層を形成する樹脂としては、熱硬化型樹脂又は電離放射線硬化型樹脂等の硬化型樹脂の少なくとも1種を含むことが好ましい。特に、電離放射線硬化型樹脂は高い表面硬度、生産性等の観点から好ましい。更に、耐候性をより一層向上させることができる観点から、電子線硬化型樹脂が最も好ましい。 (Surface protective layer)
The surface protective layer (transparent surface protective layer) is provided for imparting surface physical properties such as scratch resistance, abrasion resistance, water resistance, and stain resistance required for the design layer. The resin forming the surface protective layer preferably includes at least one curable resin such as a thermosetting resin or an ionizing radiation curable resin. In particular, ionizing radiation curable resins are preferable from the viewpoint of high surface hardness, productivity, and the like. Furthermore, from the viewpoint of further improving the weather resistance, an electron beam curable resin is most preferable.
上記合成樹脂製化粧シートは、図4(a)及び図4(b)に示すように、合成樹脂製化粧シート6(a)及び6(b)の最下層、すなわち意匠層の合板側に合成樹脂製バッカー層611を有することが好ましい。合成樹脂製バッカー層を有することにより、本発明の化粧材の耐衝撃性がより一層向上する。 (Backer layer made of synthetic resin)
As shown in FIGS. 4 (a) and 4 (b), the synthetic resin decorative sheet is synthesized on the lowermost layer of the synthetic resin decorative sheets 6 (a) and 6 (b), that is, on the plywood side of the design layer. It is preferable to have a
化粧材の製造方法としては特に限定されず、従来公知の方法により製造することができる。上記製造方法としては、例えば、合板の第1層上に、意匠層を積層する工程を含む製造方法が挙げられる。 2. Manufacturing method of decorative material The manufacturing method of the decorative material is not particularly limited, and can be manufactured by a conventionally known method. As said manufacturing method, the manufacturing method including the process of laminating | stacking a design layer on the 1st layer of a plywood is mentioned, for example.
なお、化粧材に用いられる合板は、例えば、以下の製造方法により製造することができる。
少なくとも上から順に第1層及び第2層を有する合板の製造方法であって、
(I)前記第1層と前記第2層とを積層する工程1、及び
(II)前記工程1の後に、前記第1層の表面を研磨して、前記第1層の厚みを1.0mm未満に調整する工程2を有し、
(1)前記第1層及び前記第2層は木質材であり、
(2)前記第1層の厚みは1.0mm未満であり、
(3)前記第2層の比重は、前記第1層の比重より大きい合板の製造方法。
当該合板の製造方法を、製造方法1と称する。以下、当該製造方法1について説明する。 (Plywood manufacturing method)
In addition, the plywood used for a decorative material can be manufactured with the following manufacturing methods, for example.
A method for producing a plywood having a first layer and a second layer in order from at least the top,
(I)
(1) The first layer and the second layer are made of wood.
(2) The thickness of the first layer is less than 1.0 mm,
(3) The method for producing plywood, wherein the specific gravity of the second layer is larger than the specific gravity of the first layer.
The manufacturing method of the plywood is referred to as
工程1は、第1層と第2層とを積層する工程である。上記第1層及び上記第2層、並びにそれらの厚み、比重については、上述の合板において説明した内容と同一である。 (Process 1)
工程2は、工程1の後に、第1層の表面を研磨して、第1層の厚みを1.0mm未満に調整する工程である。工程1により、第1層と第2層とを積層した後に、工程2により第1層の表面を研磨することにより、第1層の厚みを均一化することができる。 (Process 2)
少なくとも上から順に第1層及び第2層を有する合板の製造方法であって、
(I)前記第1層として気乾比重0.40以上0.47以下のポプラ単板、及び、前記第2層として気乾比重0.50以上0.90以下のユーカリ単板を用意する工程1、
(II)前記第1層と前記第2層とを積層する工程2、並びに、
(III)前記工程2の後に、前記第1層の表面を研磨して、前記第1層の厚みを1.0mm未満に調整する工程3を有する合板の製造方法。当該製造方法を製造方法2と称する。 Moreover, the plywood used for a decorative material can also be manufactured with the following manufacturing methods.
A method for producing a plywood having a first layer and a second layer in order from at least the top,
(I) A step of preparing a poplar single plate having an air-dry specific gravity of 0.40 to 0.47 as the first layer and a eucalyptus single plate having an air-dry specific gravity of 0.50 to 0.90 as the second layer. 1,
(II)
(III) The manufacturing method of the plywood which has the
ポプラ単板:0.43
ユーカリ単板:0.55 In the following examples, comparative examples, and reference examples, the specific gravity of each layer was measured from the produced plywood, and the results were as follows.
Poplar single plate: 0.43
Eucalyptus veneer: 0.55
(合板の作製)
第1層として、ポプラをスライスすることにより、厚み1.3mm、比重0.43のポプラ単板を用意した。また、第2層として、ユーカリをスライスすることにより、厚み2.7mm、比重0.55のユーカリ単板を用意した。さらに、第3層、第5層、第7層として上記第1層と同様のポプラ単板を用意し、第4層、第6層として上記第2層と同様のユーカリ単板を用意した。用意したポプラ単板及びユーカリ単板を、隣接する木質層の木目方向が直交するようにして、ユリア系接着剤を介して第1層から7層まで上から順にポプラ単板/ユーカリ単板/ポプラ単板/ユーカリ単板/ポプラ単板/ユーカリ単板/ポプラ単板の層構成となるように積層し、木質層の積層体を調製した。 Example 1
(Production of plywood)
As a first layer, a poplar single plate having a thickness of 1.3 mm and a specific gravity of 0.43 was prepared by slicing poplar. Moreover, the eucalyptus single board of thickness 2.7mm and specific gravity 0.55 was prepared by slicing eucalyptus as a 2nd layer. Further, poplar single plates similar to the first layer were prepared as the third layer, fifth layer, and seventh layer, and eucalyptus single plates similar to the second layer were prepared as the fourth layer and sixth layer. The prepared poplar veneer and eucalyptus veneer are arranged in order from the top to the first to the seventh layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal, the poplar veneer / eucalyptus veneer / Lamination was carried out so as to have a layer structure of poplar single plate / eucalyptus single plate / poplar single plate / eucalyptus single plate / poplar single plate to prepare a laminate of wood layers.
両面コロナ放電処理した60μm厚さの着色ポリプロピレンフィルムの一方の面にウレタンセルロース系樹脂(ウレタン及び硝化綿の混合物100重量部に対してヘキサメチレンジイソシアネート5重量部を添加したもの)をグラビア塗工法により、裏面プライマー層を形成した。裏面プライマー層は1μmであった。 (Production of synthetic resin decorative sheet)
A gravure coating method applies urethane cellulose resin (added 5 parts by weight of hexamethylene diisocyanate to 100 parts by weight of a mixture of urethane and nitrified cotton) on one side of a colored polypropylene film having a thickness of 60 μm subjected to double-sided corona discharge treatment. A back primer layer was formed. The back primer layer was 1 μm.
合成樹脂製化粧シートの合成樹脂製バッカー層側の面と、合板の第1層側の面とを、反応性ホットメルト系(PUR)接着剤(厚み50μm)を介して貼り合わせ、所定の寸法(145mm×900mm)に裁断して、化粧材を作製した。 (Production of cosmetic materials)
The surface on the synthetic resin backer layer side of the synthetic resin decorative sheet and the surface on the first layer side of the plywood are bonded together via a reactive hot-melt (PUR) adhesive (
合板の第1層及び第2層の樹木の種類及び厚みを表1のようにするとともに、第3層から第7層として実施例1と同様の単板を積層した。すなわち、第1層から第7層までのそれぞれの層を、上記実施例1と同様の製造方法を用いて積層するとともに厚み調整を行い、ポプラ単板0.8mm/ユーカリ単板2.5mm/ポプラ単板1.2mm/ユーカリ単板2.5mm/ポプラ単板1.2mm/ユーカリ単板2.5mmとし、第7層としてのポプラ単板をサンディング研磨することにより厚みを調整して、合板の総厚みを11.5mmとした。それ以外は実施例1と同様にして、化粧材を作製した。 Example 2
The types and thicknesses of the first and second layers of plywood were as shown in Table 1, and the same single plate as in Example 1 was laminated as the third to seventh layers. That is, the layers from the first layer to the seventh layer were laminated using the same manufacturing method as in Example 1 above, and the thickness was adjusted, so that the poplar single plate 0.8 mm / eucalyptus single plate 2.5 mm / Poplar veneer 1.2mm / eucalyptus veneer 2.5mm / poplar veneer 1.2mm / eucalyptus veneer 2.5mm, adjusting thickness by sanding polishing poplar veneer as the seventh layer, plywood The total thickness was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
合板の第1層及び第2層の樹木の種類及び厚みを表1のようにするとともに、第3層から第7層として実施例1と同様の単板を積層した。すなわち、第1層から第7層までのそれぞれの層を、上記実施例1と同様の製造方法を用いて積層するとともに厚み調整を行い、ポプラ単板0.6mm/ユーカリ単板2.5mm/ポプラ単板1.2mm/ユーカリ単板2.5mm/ポプラ単板1.2mm/ユーカリ単板2.5mmとし、第7層としてのポプラ単板をサンディング研磨することにより厚みを調整して、合板の総厚みを11.5mmとした。それ以外は実施例1と同様にして、化粧材を作製した。 Example 3
The types and thicknesses of the first and second layers of plywood were as shown in Table 1, and the same single plate as in Example 1 was laminated as the third to seventh layers. That is, each layer from the first layer to the seventh layer is laminated using the same manufacturing method as in Example 1 above, and the thickness is adjusted, so that the poplar single plate 0.6 mm / eucalyptus single plate 2.5 mm / Poplar veneer 1.2mm / eucalyptus veneer 2.5mm / poplar veneer 1.2mm / eucalyptus veneer 2.5mm, adjusting thickness by sanding polishing poplar veneer as the seventh layer, plywood The total thickness was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
透明性樹脂層の厚みを60μm、合成樹脂製バッカー層の厚みを0.20mmに変更した。それ例外は実施例1と同様にして、合成樹脂製化粧シートを作成した。当該合成樹脂製化粧シートを、化粧シート(2)とする。化粧シート(1)に代えて、化粧シート(2)を用いた以外は実施例3と同様にして、化粧材を作製した。 Example 4
The thickness of the transparent resin layer was changed to 60 μm, and the thickness of the synthetic resin backer layer was changed to 0.20 mm. A synthetic resin decorative sheet was prepared in the same manner as in Example 1 with the exception. The synthetic resin decorative sheet is referred to as a decorative sheet (2). A cosmetic material was produced in the same manner as in Example 3 except that the decorative sheet (2) was used instead of the decorative sheet (1).
透明性樹脂層の厚みを60μm、合成樹脂製化粧シートの合成樹脂シート(合成樹脂製バッカー層)を形成する樹脂をポリプロピレン樹脂(PP)に変更した。合成樹脂製バッカー層の厚みは0.13mmであり、マルテンス硬さは160N/mm2であった。それ以外は実施例1と同様にして、合成樹脂製化粧シートを作成した。当該合成樹脂製化粧シートを、化粧シート(3)とする。化粧シート(1)に代えて、化粧シート(3)を用いた以外は実施例3と同様にして、化粧材を作製した。 Example 5
The thickness of the transparent resin layer was changed to 60 μm, and the resin forming the synthetic resin sheet (synthetic resin backer layer) of the synthetic resin decorative sheet was changed to polypropylene resin (PP). The thickness of the synthetic resin backer layer was 0.13 mm, and the Martens hardness was 160 N / mm 2 . Other than that was carried out similarly to Example 1, and created the synthetic resin decorative sheet. The synthetic resin decorative sheet is referred to as a decorative sheet (3). A cosmetic material was produced in the same manner as in Example 3 except that the decorative sheet (3) was used instead of the decorative sheet (1).
第1層として、ポプラをスライスすることにより、厚み1.3mm、比重0.43のポプラ単板を用意した。また、第2層として、ユーカリをスライスすることにより、厚み2.2mm、比重0.55のユーカリ単板を用意した。さらに、第7層として上記第1層と同様のポプラ単板を用意し、第3層から第6層として上記第2層と同様のユーカリ単板を用意した。用意したポプラ単板及びユーカリ単板を、隣接する木質層の木目方向が直交するようにして、ユリア系接着剤を介して第1層から第7層まで上から順にポプラ単板/ユーカリ単板/ユーカリ単板/ユーカリ単板/ユーカリ単板/ユーカリ単板/ポプラ単板の層構成となるように積層し、木質層の積層体を調製した。 Example 6
As a first layer, a poplar single plate having a thickness of 1.3 mm and a specific gravity of 0.43 was prepared by slicing poplar. Further, as a second layer, eucalyptus single plates having a thickness of 2.2 mm and a specific gravity of 0.55 were prepared by slicing eucalyptus. Further, a poplar veneer similar to the first layer was prepared as the seventh layer, and eucalyptus veneers similar to the second layer were prepared as the third to sixth layers. Poplar veneer / eucalyptus veneer in order from the top to the seventh layer from the first layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal to the prepared poplar veneer and eucalyptus veneer Laminate was prepared so as to have a layer structure of: / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / poplar veneer.
(合板の作製)
合板の第1層として、ポプラをスライスすることにより、厚み1.4mm、比重0.43のポプラ単板を用意した。また、第2層として、ユーカリをスライスすることにより、厚み2.7mm、比重0.55のユーカリ単板を用意した。さらに、第3層、第5層、第7層として上記第1層と同様のポプラ単板を用意し、第4層、第6層として上記第2層と同様のユーカリ単板を用意した。用意したポプラ単板及びユーカリ単板を、隣接する木質層の木目方向が直交するようにして、ユリア系接着剤を介して第1層から第7層まで上から順にポプラ単板/ユーカリ単板/ポプラ単板/ユーカリ単板/ポプラ単板/ユーカリ単板/ポプラ単板の層構成となるように積層し、木質層の積層体を調製した。 Example 7
(Production of plywood)
As a first layer of plywood, a poplar single plate having a thickness of 1.4 mm and a specific gravity of 0.43 was prepared by slicing poplar. As the second layer, a eucalyptus veneer having a thickness of 2.7 mm and a specific gravity of 0.55 was prepared by slicing eucalyptus. Further, poplar single plates similar to the first layer were prepared as the third layer, fifth layer, and seventh layer, and eucalyptus single plates similar to the second layer were prepared as the fourth layer and sixth layer. Poplar veneer / eucalyptus veneer in order from the top to the seventh layer from the first layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal to the prepared poplar veneer and eucalyptus veneer A laminate of wood layers was prepared so as to have a layer structure of: / poplar single plate / eucalyptus single plate / poplar single plate / eucalyptus single plate / poplar single plate.
合成樹脂製化粧シートの合成樹脂シート(合成樹脂製バッカー層)を形成する樹脂をポリプロピレン樹脂(PP)に変更した。合成樹脂製バッカー層の厚みは0.25mmであり、マルテンス硬さは160N/mm2であった。それ例外は実施例1と同様にして、意匠層である合成樹脂製化粧シートを作成した。当該合成樹脂製化粧シートを、化粧シート(4)とする。 Example 8
The resin forming the synthetic resin sheet (synthetic resin backer layer) of the synthetic resin decorative sheet was changed to polypropylene resin (PP). The thickness of the synthetic resin backer layer was 0.25 mm, and the Martens hardness was 160 N / mm 2 . The exception was the same as in Example 1, and a synthetic resin decorative sheet as a design layer was prepared. Let the said synthetic resin decorative sheet be a decorative sheet (4).
合板の第1層として、ポプラをスライスすることにより、厚み3.5mm、比重0.43のポプラ単板を用意した。また、第2層として、ユーカリをスライスすることにより、厚み3.5mm、比重0.55のユーカリ単板を用意した。さらに、第3層、第5層として上記第1層と同様のポプラ単板を用意し、第4層として上記第2層と同様のユーカリ単板を用意した。用意したポプラ単板及びユーカリ単板を、隣接する木質層の木目方向が直交するようにして、ユリア系接着剤を介して第1層から第5層まで上から順にポプラ単板/ユーカリ単板/ポプラ単板/ユーカリ単板/ポプラ単板の層構成となるように積層し、木質層の積層体を調製した。 Example 9
As a first layer of plywood, a poplar single plate having a thickness of 3.5 mm and a specific gravity of 0.43 was prepared by slicing poplar. Moreover, the eucalyptus single board of thickness 3.5mm and specific gravity 0.55 was prepared by slicing eucalyptus as a 2nd layer. Further, poplar single plates similar to the first layer were prepared as the third layer and the fifth layer, and eucalyptus single plates similar to the second layer were prepared as the fourth layer. Poplar veneer / eucalyptus veneer in order from the top to the 5th layer from the 1st layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal to the prepared poplar veneer and eucalyptus veneer A laminate of wood layers was prepared by laminating so as to have a layer structure of / poplar single plate / eucalyptus single plate / poplar single plate.
合成樹脂製化粧シートの合成樹脂製バッカー層側の面と、合板の第1層側の面とを、貼り合わせる際に用いた接着剤を水溶性エマルジョン系接着剤に変更し、塗布厚みを35μmにした以外は実施例5と同様にして化粧材を作製した。水溶性エマルジョン系接着剤は、以下のものを用いた。 Example 10
Change the adhesive used when bonding the synthetic resin backer layer side of the synthetic resin decorative sheet and the first layer side surface of the plywood to a water-soluble emulsion adhesive, and the coating thickness is 35 μm A cosmetic material was prepared in the same manner as in Example 5 except that it was changed. The following water-soluble emulsion adhesives were used.
主剤:「BA-10L」ジャパンコーティングレジン株式会社製、変性エチレン・酢酸ビニル系
硬化剤:「BA-11B」ジャパンコーティングレジン株式会社製、イソシアネート系
配合比:主剤:硬化剤=100:2.5(質量比) Water-soluble emulsion adhesive main agent: “BA-10L” manufactured by Japan Coating Resin Co., Ltd., modified ethylene / vinyl acetate type curing agent: “BA-11B” manufactured by Japan Coating Resin Co., Ltd., isocyanate-based ratio: main agent: curing agent = 100: 2.5 (mass ratio)
第1層及び第2層の樹木の種類及び厚みを表1のようにするとともに、第3層から第7層として実施例1と同様の単板を積層した。すなわち、第1層から第7層までのそれぞれの層を、上記実施例1と同様の製造方法を用いて積層するとともに厚み調整を行い、ファルカタ単板0.6mm/ユーカリ単板2.5mm/ポプラ単板1.2mm/ユーカリ単板2.5mm/ポプラ単板1.2mm/ユーカリ単板2.5mmとし、第7層としてのポプラ単板をサンディング研磨することにより厚みを調整して、合板の総厚みを11.5mmとした。それ以外は実施例1と同様にして、化粧材を作製した。 Example 11
The types and thicknesses of the trees of the first layer and the second layer were as shown in Table 1, and the same single plate as in Example 1 was laminated as the third layer to the seventh layer. That is, the layers from the first layer to the seventh layer were laminated using the same manufacturing method as in Example 1 above, and the thickness was adjusted, so that Falkata single plate 0.6 mm / eucalyptus single plate 2.5 mm / Poplar veneer 1.2mm / eucalyptus veneer 2.5mm / poplar veneer 1.2mm / eucalyptus veneer 2.5mm, adjusting thickness by sanding polishing poplar veneer as the seventh layer, plywood The total thickness was 11.5 mm. Other than that was carried out similarly to Example 1, and produced the cosmetic material.
第1層として、ポプラをスライスすることにより、厚み1.3mm、比重0.43のポプラ単板を用意した。また、第2層として、ユーカリをスライスすることにより、厚み2.1mm、比重0.55のユーカリ単板を用意した。さらに、第9層として上記第1層と同様のポプラ単板を用意し、第3層から第8層として上記第2層と同様のユーカリ単板を用意した。用意したポプラ単板及びユーカリ単板を、隣接する木質層の木目方向が直交するようにして、ユリア系接着剤を介して第1層から第9層まで上から順にポプラ単板/ユーカリ単板/ユーカリ単板/ユーカリ単板/ユーカリ単板/ユーカリ単板/ユーカリ単板/ユーカリ単板/ポプラ単板の層構成となるように積層し、木質層の積層体を調製した。 Example 12
As a first layer, a poplar single plate having a thickness of 1.3 mm and a specific gravity of 0.43 was prepared by slicing poplar. Moreover, the eucalyptus veneer of thickness 2.1mm and specific gravity 0.55 was prepared by slicing eucalyptus as a 2nd layer. Furthermore, a poplar veneer similar to the first layer was prepared as the ninth layer, and eucalyptus veneers similar to the second layer were prepared as the third to eighth layers. Poplar veneer / eucalyptus veneer in order from the top to the 9th layer from the first layer through the urea adhesive so that the grain direction of the adjacent wood layer is orthogonal to the prepared poplar veneer and eucalyptus veneer Laminate was prepared to have a layer structure of: / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / eucalyptus veneer / poplar veneer.
(合板の作製)
実施例1と同様にして、合板を作製した。 Comparative Example 1
(Production of plywood)
A plywood was produced in the same manner as in Example 1.
意匠層として、厚み0.20mmのナラ材の突板を用意した。突板と、合板の第1層側の面とを、熱硬化型の酢酸ビニル・尿素系接着剤を介して貼り合わせた。 (Production of cosmetic materials)
As a design layer, a veneer veneer having a thickness of 0.20 mm was prepared. The veneer and the surface of the plywood on the first layer side were bonded together via a thermosetting vinyl acetate / urea adhesive.
第1層及び第2層の樹木の種類及び厚みを表1のようにするとともに、第3層から第7層として実施例1と同様の単板を積層した。すなわち、第1層から第7の木質層までのそれぞれの層を、上記実施例1と同様の製造方法を用いて積層するとともに厚み調整を行い、ポプラ単板1.2mm/ポプラ単板2.5mm/ポプラ単板1.2mm/ユーカリ単板2.5mm/ポプラ単板1.2mm/ユーカリ単板2.5mmとし、第7層としてのポプラ単板をサンディング研磨することにより厚みを調整して、合板の総厚みを11.5mmとした。それ以外は実施例1と同様にして、化粧材を作製した。 Comparative Example 2
The types and thicknesses of the trees of the first layer and the second layer were as shown in Table 1, and the same single plate as in Example 1 was laminated as the third layer to the seventh layer. That is, the layers from the first layer to the seventh wood layer are laminated using the same manufacturing method as in Example 1 above, and the thickness is adjusted, so that the poplar single plate 1.2 mm / poplar
上述のようにして作製された実施例及び比較例の化粧材について、以下の方法により評価を行った。 (Evaluation)
The cosmetic materials of Examples and Comparative Examples produced as described above were evaluated by the following methods.
「JISK5600-5-3(1999) 塗料一般試験方法 塗膜の機械的性質-第3節:耐おもり落下性 デュポン式」に記載のデュポン衝撃試験に従って、実施例及び比較例で得られた化粧材の表面上に、半径6.35mmの半球形状の先端を有した撃ち型を静置させ、当該撃ち型上に500gのおもりを高さ300mmから落下させた。凹み量を、図6で示すようにして測定器(株式会社尾崎製作所 T2-127)で測定した。 (1) Impact resistance test (DuPont impact test)
Cosmetic materials obtained in examples and comparative examples according to the DuPont impact test described in “JISK5600-5-3 (1999) General coating method for coating materials, mechanical properties of coating film—Section 3: Weight drop resistance DuPont” A shooting die having a hemispherical tip with a radius of 6.35 mm was allowed to stand on the surface, and a 500 g weight was dropped from the height of 300 mm onto the shooting die. The amount of dents was measured with a measuring instrument (Ozaki Mfg. Co., Ltd. T2-127) as shown in FIG.
幅145mm、長さ300mmの化粧材を準備し、下地上に静置し、「80℃で2時間放置した後、-20℃で2時間放置すること」を1サイクルとし、当該サイクルを10サイクル繰り返した。次いで、以下の手順で反り量評価と外観評価を行った。
なお、化粧材として上記の大きさのものが準備できない場合は極力、平面視した際に相似形状の化粧材を用い、当該化粧材の大きさにて下記評価基準を補正計算して評価を行うものとする。 (2) Prepare a decorative material with a 145 mm cold repeat width and 300 mm length, leave it on the base, and leave it at 80 ° C for 2 hours and then at -20 ° C for 2 hours as one cycle. The cycle was repeated 10 times. Next, the amount of warpage and appearance were evaluated according to the following procedure.
If a cosmetic material of the above size cannot be prepared, use a cosmetic material with a similar shape when viewed in plan, and perform evaluation by correcting the following evaluation criteria with the size of the cosmetic material. Shall.
図7に示すように、化粧材の長さの中点付近(150mm)の反りの最大量を測定し、下記評価基準に従って評価した。なお、図7において、図7(a)は、下地3と、合板4上に意匠層5を有する化粧材との試験前の状態を示し、図7(b)及び(c)は、寒熱繰り返し試験後の下地3及び化粧材を示しており、dが反り量を示している。図7(c)の状態に反った場合、図7(d)のように、化粧材を下地3上に上下を反転させて置き直し、反り量dを測定すればよい。また、本試験においてB以上の評価であれば、実使用において問題ないと評価される。
A:0.6mm未満
B:0.6mm以上1mm未満
C:1mm以上 (I) Warpage amount evaluation As shown in FIG. 7, the maximum amount of warpage in the vicinity of the midpoint of the length of the decorative material (150 mm) was measured and evaluated according to the following evaluation criteria. In FIG. 7, FIG. 7A shows a state before the test of the
A: Less than 0.6 mm B: 0.6 mm or more and less than 1 mm C: 1 mm or more
化粧材表面の、合板に起因する外観不良(第2層の節の映出、第1層の凝集割れ)の発生を目視で観察し、下記評価基準に従って評価した。なお、第1層の凝集割れは、図8に示すように、合板1の第1層11上に合成樹脂製化粧シート6を有する化粧材において、第1層11の端部に発生する割れ111である。また、本試験においてB以上の評価であれば、実使用において問題ないと評価できる。
A:外観不良が確認できない
B:外観不良が確認できるが軽微である
C:外観不良が明確に確認できる (Ii) Appearance Evaluation The appearance of appearance defects (projection of the second layer nodes and cohesive cracking of the first layer) on the surface of the decorative material was visually observed and evaluated according to the following evaluation criteria. As shown in FIG. 8, the cohesive crack of the first layer is a
A: Appearance failure cannot be confirmed B: Appearance failure can be confirmed but is minor C: Appearance failure can be clearly confirmed
実施例1、11及び比較例1の化粧材について、サンシャインウェザーメーター:WEL-300(スガ試験機株式会社製)を用いて、下記条件で、化粧材の意匠層の側からサンシャインカーボンアーク光を1000時間照射した際の外観状態を目視で評価した。なおステップ1→ステップ2の1サイクルを2時間とし、1サイクル後は2サイクル目のステップ1というように繰り返し試験を行った。
<ステップ1>
・ブラックパネル温度:63℃、湿度:50%
・運転時間:1時間42分
<ステップ2>
・槽内温度:40℃、湿度:90%
・運転時間:18分 (3) Weather resistance test For the decorative materials of Examples 1 and 11 and Comparative Example 1, using a sunshine weather meter: WEL-300 (manufactured by Suga Test Instruments Co., Ltd.) From the above, the appearance state when irradiated with sunshine carbon arc light for 1000 hours was visually evaluated. Note that one cycle from
<
Black panel temperature: 63 ° C, humidity: 50%
・ Operating time: 1 hour 42 minutes <
・ Inside temperature: 40 ℃, Humidity: 90%
・ Operating time: 18 minutes
表1に記載の接着剤を介して、合成樹脂製化粧シートと、合板の第1層側の面とを、貼り合わせた際の外観を目視で観察し、下記評価基準に従って評価した。なお、合成樹脂製化粧シートの合成樹脂製バッカー層側の面と、合板の第1層側の面とを貼り合わせた。また、本試験においてB以上の評価であれば、実使用において問題ないと評価できる。
A:外観欠点が見られず、外観が良好である
B:合板板目等の合板欠点が、注意して見ると分かるが目立たない
C:合板板目等の合板欠点が明確に確認できる (4) Appearance evaluation after lamination The appearance when the synthetic resin decorative sheet and the surface on the first layer side of the plywood are bonded together is visually observed through the adhesive described in Table 1. Evaluation was performed according to the evaluation criteria. The surface on the synthetic resin backer layer side of the synthetic resin decorative sheet and the surface on the first layer side of the plywood were bonded together. Moreover, if it is evaluation more than B in this test, it can be evaluated that there is no problem in actual use.
A: Appearance defects are not seen and appearance is good B: Plywood defects such as plywood are not noticeable, but C: plywood defects such as plywood can be clearly confirmed
各化粧材の耐傷性能評価を、鉛筆硬度試験機を用いて行った。試験機が水平位置のときに鉛筆の先に対して750gの荷重を与えるように試験機を設定した以外は、JIS K5600-5-4(1999)に準拠して試験を行った。具体的には、芯硬度が柔らかいものから順にHB、Hの芯を有する鉛筆を使用して試験を行い、下記評価基準に従って評価した。なお、本試験においてB以上の評価であれば、実使用において問題ないと評価できる。
A:Hの硬さの芯を有する鉛筆で試験を行っても傷が発生しない
B:HBの硬さの芯を有する鉛筆で試験を行っても傷が発生しないが、Hの硬さの芯を有する鉛筆で試験を行うと傷が発生する
C:HBの硬さの芯を有する鉛筆で試験を行うと傷が発生する (5) Pencil hardness test The flaw resistance performance of each decorative material was evaluated using a pencil hardness tester. The test was conducted in accordance with JIS K5600-5-4 (1999) except that the test machine was set so that a load of 750 g was applied to the tip of the pencil when the test machine was in the horizontal position. Specifically, tests were performed using pencils having HB and H cores in order from the softest core hardness, and evaluated according to the following evaluation criteria. In addition, if it is B or more evaluation in this test, it can be evaluated that there is no problem in actual use.
A: No scratches even when tested with a pencil with H hardness core B: No scratches even when tested with a pencil with HB hardness core, but H hardness core Scratches occur when tested with a pencil having C: scratches occur when tested with a pencil having a C: HB hardness core
実施例1で用いた合板と同一の合板を作製し、参考例1の合板とした。 Reference example 1
A plywood identical to the plywood used in Example 1 was produced and used as the plywood of Reference Example 1.
実施例2で用いた合板と同一の合板を作製し、参考例2の合板とした。 Reference example 2
A plywood identical to the plywood used in Example 2 was produced and used as the plywood of Reference Example 2.
実施例3で用いた合板と同一の合板を作製し、参考例3の合板とした。 Reference example 3
A plywood identical to the plywood used in Example 3 was produced and used as the plywood of Reference Example 3.
実施例7で用いた合板と同一の合板を作製し、参考例4の合板とした。 Reference example 4
A plywood identical to the plywood used in Example 7 was produced and used as the plywood of Reference Example 4.
比較例2で用いた合板と同一の合板を作製し、参考例5の合板とした。 Reference Example 5
A plywood identical to the plywood used in Comparative Example 2 was produced and used as the plywood of Reference Example 5.
実施例9で用いた合板と同一の合板を作製し、参考例6の合板とした。 Reference Example 6
A plywood identical to the plywood used in Example 9 was produced and used as the plywood of Reference Example 6.
実施例11で用いた合板と同一の合板を作製し、参考例7の合板とした。 Reference Example 7
A plywood identical to the plywood used in Example 11 was produced and used as the plywood of Reference Example 7.
上述のようにして作製された参考例の合板について、上述の耐衝撃試験(デュポン衝撃試験)を行った。 (Evaluation)
The above-mentioned impact resistance test (DuPont impact test) was performed on the plywood of the reference example produced as described above.
11,21.第1層
12,22.第2層
13,23.第3層
14,24.第4層
15,25.第5層
111.割れ
211.厚みを薄くした第1層
221.厚みを薄くした第2層
26.第6層
27.第7層
3.下地
5.意匠層
6,6(a),6(b).合成樹脂製化粧シート
611.合成樹脂製バッカー層
612.基材シート
613.絵柄層
614.透明性樹脂層
615.表面保護層
d.反り量
h.ピラミッド形のくぼみ
m.測定器
A.雄サネ
B.雌サネ 1,2,4.
Claims (15)
- 少なくとも上から順に第1層及び第2層を有する合板の、前記第1層の上に意匠層を有する化粧材であって、
(1)前記第1層及び前記第2層は木質材であり、
(2)前記第1層の厚みは1.0mm未満であり、
(3)前記第2層の比重は、前記第1層の比重より大きく、
(4)前記意匠層は、総厚みが0.20mm以上0.70mm以下の合成樹脂製化粧シートである、
ことを特徴とする化粧材。 A decorative material having a design layer on the first layer of a plywood having a first layer and a second layer in order from the top,
(1) The first layer and the second layer are made of wood.
(2) The thickness of the first layer is less than 1.0 mm,
(3) The specific gravity of the second layer is greater than the specific gravity of the first layer,
(4) The design layer is a synthetic resin decorative sheet having a total thickness of 0.20 mm to 0.70 mm.
A cosmetic material characterized by that. - 前記合成樹脂製化粧シートの厚みは0.25mm以上0.45mm以下である、請求項1に記載の化粧材。 The cosmetic material according to claim 1, wherein the synthetic resin decorative sheet has a thickness of 0.25 mm or more and 0.45 mm or less.
- 前記合成樹脂製化粧シートは、前記合板側に合成樹脂製バッカー層を有する、請求項1に記載の化粧材。 The decorative material according to claim 1, wherein the synthetic resin decorative sheet has a synthetic resin backer layer on the plywood side.
- 前記合成樹脂製バッカー層は、マルテンス硬さが50~300N/mm2である、請求項3に記載の化粧材。 The decorative material according to claim 3, wherein the synthetic resin backer layer has a Martens hardness of 50 to 300 N / mm 2 .
- 前記合成樹脂製化粧シートは、最表層が電離放射線硬化型樹脂層である、請求項1に記載の化粧材。 The cosmetic material according to claim 1, wherein the outermost layer of the synthetic resin decorative sheet is an ionizing radiation curable resin layer.
- 前記合成樹脂製化粧シートは、前記電離放射線硬化型樹脂層が電子線硬化型樹脂層である、請求項5に記載の化粧材。 The decorative material according to claim 5, wherein the synthetic resin decorative sheet has the ionizing radiation curable resin layer as an electron beam curable resin layer.
- 前記第1層はポプラ単板であり、前記第2層はユーカリ単板である、請求項1に記載の化粧材。 The cosmetic material according to claim 1, wherein the first layer is a poplar veneer and the second layer is a eucalyptus veneer.
- 前記第1層は中国産ポプラ単板である、請求項1に記載の化粧材。 The cosmetic material according to claim 1, wherein the first layer is a Chinese poplar veneer.
- 前記第1層は、広葉樹単板である、請求項1に記載の化粧材。 The cosmetic material according to claim 1, wherein the first layer is a hardwood veneer.
- 前記第1層の比重は0.50未満であり、前記第2層の比重は0.50以上である、請求項1に記載の化粧材。 The cosmetic material according to claim 1, wherein the specific gravity of the first layer is less than 0.50, and the specific gravity of the second layer is 0.50 or more.
- 前記第1層の厚みは0.6mm以上0.9mm以下である、請求項1に記載の化粧材。 The cosmetic material according to claim 1, wherein the thickness of the first layer is 0.6 mm or more and 0.9 mm or less.
- 前記第2層は、前記第1層の側の表面の少なくとも一部に節を有しており、前記第1層の節は、前記第2層の節より少ない、請求項1に記載の化粧材。 The makeup according to claim 1, wherein the second layer has nodes on at least a part of the surface on the first layer side, and the nodes of the first layer are fewer than the nodes of the second layer. Wood.
- 前記合板の層数は、5層又は7層である、請求項1に記載の化粧材。 The decorative material according to claim 1, wherein the number of layers of the plywood is 5 layers or 7 layers.
- 床用化粧材である、請求項1に記載の化粧材。 The decorative material according to claim 1, which is a floor decorative material.
- 請求項1に記載の化粧材の意匠層用に用いられる合成樹脂製化粧シート。
A synthetic resin decorative sheet used for the design layer of the decorative material according to claim 1.
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KR1020207008086A KR102270978B1 (en) | 2017-06-07 | 2018-06-07 | Decorative material |
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CN114165010B (en) * | 2021-11-19 | 2023-07-18 | 诺森(常州)建筑产业有限公司 | 3D flat-plate printing decorative plate based on electron beam curing technology and application thereof |
CN113997362A (en) * | 2021-11-30 | 2022-02-01 | 湖南雪宝装饰材料有限公司 | Scratch-proof frosted ecological plate and preparation method thereof |
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KR102120186B1 (en) | 2020-06-08 |
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