WO2017213053A1 - Feuille et panneau décoratifs - Google Patents

Feuille et panneau décoratifs Download PDF

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Publication number
WO2017213053A1
WO2017213053A1 PCT/JP2017/020673 JP2017020673W WO2017213053A1 WO 2017213053 A1 WO2017213053 A1 WO 2017213053A1 JP 2017020673 W JP2017020673 W JP 2017020673W WO 2017213053 A1 WO2017213053 A1 WO 2017213053A1
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WO
WIPO (PCT)
Prior art keywords
reflecting
reflection
decorative sheet
main surface
transparent resin
Prior art date
Application number
PCT/JP2017/020673
Other languages
English (en)
Japanese (ja)
Inventor
友洋 中込
佑美 滝澤
早坂　哲
Original Assignee
凸版印刷株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2016113818A external-priority patent/JP2017217825A/ja
Priority claimed from JP2016113816A external-priority patent/JP2017217824A/ja
Priority claimed from JP2016113820A external-priority patent/JP2017217826A/ja
Application filed by 凸版印刷株式会社 filed Critical 凸版印刷株式会社
Publication of WO2017213053A1 publication Critical patent/WO2017213053A1/fr

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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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/02—Designs or pictures characterised by special or unusual light effects produced by reflected light, e.g. matt surfaces, lustrous surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/02—Designs imitating natural patterns wood grain effects

Definitions

  • the first invention relates to a decorative sheet and a decorative board provided with the decorative sheet.
  • the second invention relates to an embossed sheet and a decorative sheet.
  • the third invention relates to a decorative sheet design method.
  • a laminate of a decorative sheet printed with a wood grain pattern on a plywood or the like is often used as a decorative board used for the surface material of interiors and furniture.
  • a laminate of a decorative sheet printed with a wood grain pattern on a plywood or the like is often used as a decorative board used for the surface material of interiors and furniture.
  • one having excellent design properties expressing the texture of wood has been proposed.
  • an excellent design is realized by laminating a transparent olefin resin sheet on which a hardwood wood grain pattern is printed on a thin and flat softwood material. .
  • the wood pattern of natural wood has a gloss with “shine”.
  • the “shine” is a gloss that appears in a direction different from the regular reflection direction when light is incident on a natural tree.
  • the location where the light appears is also moved.
  • the cell lumen of the natural wood is fibrous.
  • the light incident in the extending direction of the fibrous cell lumen is reflected in the regular reflection direction, but the light incident in the arrangement direction of the fibrous cell lumen is positive depending on the angle of the cell lumen.
  • the light is deflected and reflected in a direction different from the reflection direction. It is considered that the location of the shimmering occurs due to the change in the angle of the cell lumen depending on the position.
  • FIG. 16A is a schematic diagram showing a wood pattern of a natural tree subjected to reflection / scattering characteristic evaluation
  • FIG. 16B is a diagram showing a measurement result of the reflection / scattering characteristic when illumination light is incident from the Y direction
  • FIG. 16C is a diagram showing a measurement result of reflection / scattering characteristics when illumination light is incident from the X direction.
  • FIG. 16B when the illumination light is incident from the Y direction, the second reflection peak is generated at an angle different from the regular reflection angle, and the second reflection peak is generated when the measurement location is changed. Changed.
  • FIG. 16B when the illumination light is incident from the Y direction, the second reflection peak is generated at an angle different from the regular reflection angle, and the second reflection peak is generated when the measurement location is changed. Changed.
  • FIG. 16B when the illumination light is incident from the Y direction, the second reflection peak is generated at an angle different from the regular reflection angle, and the second reflection peak is generated when the measurement location is changed. Changed.
  • An object of the first invention is to provide a decorative sheet and a decorative board that can reproduce the glossy luster that appears in the grain pattern of natural wood.
  • the second invention has an object to provide an embossed sheet and a decorative sheet that can reproduce the shiny luster that appears in the wood grain pattern of natural wood.
  • the third aspect of the present invention aims to provide a method for designing a decorative sheet that can reproduce the shiny luster that appears in the wood grain pattern of natural wood.
  • the decorative sheet according to the first aspect of the present invention includes, as one form thereof, a base sheet, a print layer provided on one of the base sheets, a transparent resin layer provided on one of the print layers, and one of the transparent resin layers.
  • the transparent resin layer has a plurality of reflecting portions including at least one of a convex portion and a concave portion that reflects light incident on the decorative sheet in a direction different from the regular reflection direction with respect to the decorative sheet surface. And the said some reflection part is covered with the protective layer.
  • the decorative sheet since a plurality of reflecting portions including at least one of a convex portion and a concave portion that reflect incident light in a direction different from the regular reflection direction with respect to the decorative sheet surface are provided, the decorative sheet appears in a wood grain pattern. Can be reproduced. Moreover, since the transparent resin layer has translucency, a real wood grain feeling can be expressed by the printing layer provided on one side, and these printing layers can be protected from deterioration. In particular, by aligning the wood grain pattern of the printed layer and the shine by the plurality of reflecting portions, the effect of being able to express a realistic wood texture is further enhanced according to the present decorative sheet.
  • this decorative sheet a plurality of reflecting portions that reflect light in a direction different from the regular reflection direction to embody shine are covered with a protective layer. In this case, it is possible to maintain the effect of reproducing the above-described shine over a long period of time. As described above, according to the decorative sheet according to one aspect of the present invention, it is possible to suitably reproduce the shiny luster that appears in the wood grain pattern of natural wood.
  • each of the plurality of reflection portions includes a reflection main surface that reflects incident light, and a connection surface provided between the reflection main surface and the surface of the transparent resin layer, and the plurality of reflection portions.
  • the lengths in the major axis direction and the minor axis direction are 20 ⁇ m or more and 500 ⁇ m or less, respectively, and the height or depth of the reflective main surface from the surface of the transparent resin layer is 10 ⁇ m or more and 100 ⁇ m or less.
  • each of the plurality of reflecting portions has a reflection main surface that reflects incident light, and a connection surface provided between the reflection main surface and the surface of the transparent resin layer, and each of the reflection main surfaces Includes a linear portion or a curved linear portion in the first cross section intersecting the surface of the transparent resin layer, and linear in the second cross section intersecting the surface of the transparent resin layer and the first cross section.
  • each of the plurality of reflecting portions varies within a range of ⁇ 40 degrees or more and 40 degrees or less.
  • the reflection main surface with a different gradient can easily emit reflected light at an angle different from the regular reflection angle on the decorative sheet surface, and the light is reflected in the direction of an appropriate angle range. This makes it possible to reproduce the shine that appears in the wood grain pattern more naturally.
  • the gradient fluctuates within a range of ⁇ 40 degrees, it is possible to reflect light in the direction of an angular range where there are many opportunities for actual visual recognition.
  • each reflection main surface since each reflection main surface includes a curved line-shaped portion or the like in the second cross section, it can be scattered reflected light having no specific reflection peak.
  • the reflective main surface may be linear in the first cross section and may be curved in the second cross section.
  • the light incident in the direction along the first cross section can be emitted in a direction different from the regular reflection angle, and the light incident in the direction along the second cross section has a reflection peak. Therefore, it is possible to reproduce more natural illumination with less glare in a specific direction.
  • the ratio of the total area of the reflecting main surfaces of the plurality of reflecting portions to the total area of the surface of the transparent resin layer is preferably 1% or more and 70% or less. In this case, it is easy to reproduce the shiny luster that appears in the wood grain pattern of natural wood.
  • the ratio here can be obtained by calculating a ratio per predetermined unit area (for example, per 1 m 2 ) of the decorative sheet, for example.
  • the transparent resin layer may further include a regular reflection portion that reflects light incident on the decorative sheet in a regular reflection direction with respect to the decorative sheet surface.
  • a regular reflection portion that reflects light incident on the decorative sheet in a regular reflection direction with respect to the decorative sheet surface.
  • the protective layer may include at least one of a thermosetting resin, an ultraviolet curable resin, and an electron beam curable resin.
  • a thermosetting resin an ultraviolet curable resin
  • an electron beam curable resin it is possible to improve the weather resistance, scratch resistance, contamination resistance, and the like of the reflecting portion that reproduces the shine, and it is possible to reproduce the natural shine over a long period of time.
  • the above decorative sheet may further include a foamed resin layer disposed between the base sheet and the printed layer.
  • the foamed resin layer can impart an impact buffering function, a heat retaining function, and the like to the decorative sheet.
  • the present invention also relates to a decorative board as another aspect.
  • This decorative board is configured to include any of the decorative sheets described above and a base material to which the decorative sheet is attached. According to this decorative board, it is possible to suitably realize the same effects as described above.
  • the embossed sheet according to the second aspect of the present invention is a translucent sheet-like base material and a plurality of convex or concave reflections that are provided on one surface of the base material and spaced from each other to reflect incident light.
  • Each of the plurality of reflection portions has a reflection surface including a reflection main surface that reflects incident light, and a connection surface provided between the reflection main surface and the substrate, and a plurality of reflections At least a part of the reflecting surface of the part is asymmetric in a predetermined direction in plan view.
  • At least a part of the plurality of reflecting portions provided on one surface of the substrate has an asymmetric shape in a predetermined direction in plan view. For this reason, the light incident in the predetermined direction with respect to the reflecting portion is reflected at an angle different from the regular reflection angle on the one surface of the base material by the reflecting surface including the reflecting main surface and the connecting surface. Thereby, when the incident angle of light or the observation position is moved, the location where the light is shined can be moved, so that it is possible to reproduce the gloss imitating natural wood.
  • the reflecting surface includes a pair of first curved portions facing each other so as to protrude outward in a first direction along one surface at an edge that is an outer periphery in a plan view.
  • at least some of the reflecting surfaces of the plurality of reflecting portions may be asymmetric in the first direction in plan view. In this case, the light incident in the first direction with respect to the reflecting portion is reflected at an angle different from the regular reflection angle on the one surface of the base material by the reflecting surface including the reflecting main surface and the connecting surface. Therefore, the effect of the embossed sheet can be suitably realized.
  • the intermediate portion may exhibit a linear shape or a curved linear shape having a larger curvature radius than the first curved portion and the second curved portion.
  • the effect of the embossed sheet can be suitably realized.
  • the intersection of the first straight line connecting the vertices in the first direction of the pair of first curved portions and the second straight line connecting the vertices in the second direction of the pair of second curved portions is a plurality of points. At least a part of the reflecting portion may be at a position shifted from the midpoint of the first straight line in the first direction. In this case, the effect of the embossed sheet can be suitably realized.
  • the intersection is shifted by a distance of 10% or more and 40% or less of the length of the first straight line from the midpoint of the first straight line in the first direction in at least a part of the plurality of reflection portions. May be in position.
  • the intersection of the first straight line and the second straight line is at a position shifted from the midpoint of the first straight line by a distance of 10% or more of the length of the first straight line.
  • the proportion increases. Therefore, it is possible to efficiently reflect the light incident on the reflecting portion.
  • the intersection of the first straight line and the second straight line is located at a position shifted from the midpoint of the first straight line by a distance of 40% or less of the length of the first straight line.
  • the angle at which the reflecting portion rises with respect to one surface of the substrate (when the reflecting portion is convex) or the angle at which the reflecting portion falls (the reflecting portion is (In the case of a concave shape) is suppressed from becoming excessive. Therefore, a reflective part can be easily provided in a base material.
  • the intersection may be located at a position shifted in the second direction from the midpoint of the second straight line in at least a part of the plurality of reflecting portions.
  • the reflective surface including the reflective main surface and the connection surface. Is reflected at an angle different from the regular reflection angle on the surface.
  • the intersection is shifted from the midpoint of the second straight line by a distance of 10% or more and 40% or less of the length of the second straight line in the second direction from at least a part of the plurality of reflection portions. May be in position.
  • the intersection of the first straight line and the second straight line is located at a position shifted from the midpoint of the second straight line by a distance of 10% or more of the length of the second straight line, The proportion increases. Therefore, it is possible to efficiently reflect the light incident on the reflecting portion.
  • the intersection of the first straight line and the second straight line is located at a position shifted from the midpoint of the second straight line by a distance of 40% or less of the length of the second straight line,
  • the angle at which the reflecting portion rises with respect to one surface of the substrate (when the reflecting portion is convex) or the angle at which the reflecting portion falls (the reflecting portion is (In the case of a concave shape) is suppressed from becoming excessive. Therefore, a reflective part can be easily provided in a base material.
  • the angle formed by the straight line may be different between a part of the plurality of reflecting portions and the other part. In this case, a part of the plurality of reflecting portions provided on one surface of the substrate and the other part have different shapes.
  • the light incident in the predetermined direction with respect to the reflecting portion is different in angle by the reflecting surface including the reflecting main surface and the connecting surface having different shapes, and is positive on one surface of the substrate.
  • the light is reflected at an angle different from the reflection angle.
  • At least a part of the reflecting surfaces of the plurality of reflecting portions may be symmetrical in a predetermined direction in plan view.
  • the difference in the appearance of gloss between the position where the asymmetrical reflection part is provided. Will occur. Therefore, by providing a symmetric reflecting portion at a position where it is not necessary to cause shine, it is possible to suppress a difference in appearance of glossiness from a position where an asymmetrically reflecting portion is not provided. Can do. Therefore, it is possible to improve design properties.
  • the present invention relates to a decorative sheet as another aspect.
  • This decorative sheet includes any one of the embossed sheets described above. According to this decorative sheet, the effect of the embossed sheet can be suitably realized.
  • a decorative sheet design method is a decorative sheet design method including a sheet-like base material that reproduces luster resembling natural wood, and obtains an image of a natural tree composed of a plurality of pixels. After the process and the acquisition process, the image is converted so that each pixel has a size of 50 ⁇ m or more and 5 mm or less, and is smaller than the number of gradations of the image acquired in the acquisition process and 2 or more and 30 or less.
  • each reflection main surface of the reflecting portion is inclined with respect to one surface of the base material in a cross section perpendicular to a predetermined direction along the one surface of the base material. For this reason, in the direction crossing the predetermined direction, the light reflected by the reflecting main surface is emitted at an angle different from the regular reflection angle on the one surface of the substrate. Thereby, when the incident angle of light or the observation position is moved, the location where the light is shined can be moved, so that it is possible to reproduce the gloss imitating natural wood.
  • the acquired natural tree image is converted so that each pixel has a size of 50 ⁇ m or more and 5 mm or less, and is made to correspond to one surface of the substrate.
  • region corresponding to each pixel of the one surface of a base material can be enlarged, it becomes possible to arrange
  • the acquired natural tree image is converted so that the number of gradations of each pixel is 2 or more and 30 or less.
  • the number of gradations of each pixel does not increase excessively, so that even when the arrangement of the reflecting portion is changed according to the gradation of each pixel, the number of patterns of the reflecting portion arrangement becomes too large. Can be suppressed. For this reason, it is possible to easily arrange the reflecting portion according to the gradation of each pixel.
  • the configuration of the decorative sheet that can reproduce the glossy gloss can be applied to the actual natural wood grain pattern. Therefore, it is possible to reproduce the shiny luster that appears in the wood grain pattern of natural wood.
  • the first gradation is smaller than the number of gradations of the image acquired in the acquisition step and greater than the second gradation number.
  • the reflecting portions may be arranged at two-dimensionally arranged positions at intervals in the arranging step. In this case, it is easy to adjust the number of reflection portions arranged (arrangement density), and visual unevenness hardly occurs.
  • the number of reflection portions arranged in the region may be changed in the arrangement step according to the gradation of each pixel. In this case, when the incident angle of light or the observation position is moved, it is possible to quickly move the portion where the light is radiated, so that the design can be improved.
  • the inclination of the reflection main surface of the reflection portion arranged in the region may be changed in the arrangement step according to the gradation of each pixel. In this case, when the incident angle of light or the observation position is moved, it is possible to gradually move the portion where the light is radiated, so that the design can be improved.
  • FIG. 1 is a cross-sectional view showing a cross section of a decorative sheet according to an embodiment of the first invention.
  • FIG. 2 is a schematic diagram illustrating an example of a reflective portion of the decorative sheet illustrated in FIG.
  • FIG. 3 is a diagram showing light reflection in the transparent resin layer of the decorative sheet shown in FIG.
  • FIG. 4 is a schematic view showing a reflecting portion according to a first modification of the first invention.
  • FIG. 5 is a schematic view showing a reflecting portion according to a second modification of the first invention.
  • FIG. 6 is a schematic view showing a reflecting portion according to a third modification of the first invention.
  • FIG. 7 is a schematic view showing a reflecting portion according to a fourth modification of the first invention.
  • FIG. 1 is a cross-sectional view showing a cross section of a decorative sheet according to an embodiment of the first invention.
  • FIG. 2 is a schematic diagram illustrating an example of a reflective portion of the decorative sheet illustrated in FIG.
  • FIG. 3 is a diagram
  • FIG. 8 is a schematic view showing a reflecting portion according to a fifth modification of the first invention.
  • FIG. 9 is a schematic view showing a reflecting portion according to a sixth modification of the first invention.
  • FIG. 10 is a schematic view showing a reflecting portion according to a seventh modification of the first invention.
  • FIG. 11 is a schematic view showing a reflecting portion according to an eighth modification of the first invention.
  • FIG. 12 is a schematic view showing an example of the arrangement of the reflecting portions in the first invention.
  • FIG. 13 is a schematic diagram showing another example of the arrangement of the reflecting portions in the first invention.
  • FIG. 14 is a schematic view showing fluctuations with respect to the arrangement of the reflecting portions in the first invention.
  • FIG. 15 is a schematic diagram showing another fluctuation with respect to the arrangement of the reflecting portions in the first invention.
  • FIG. 16A is a schematic diagram showing a wood grain pattern of natural wood subjected to reflection / scattering characteristic evaluation.
  • FIG. 16B is a diagram showing the measurement results of the reflection / scattering characteristics when illumination light is incident from the Y direction.
  • FIG. 16C is a diagram illustrating a measurement result of the reflection / scattering characteristics when the illumination light is incident from the X direction.
  • FIG. 17 is a view showing an example of a natural wood grain pattern in the second invention.
  • FIG. 18 is a cross-sectional view showing a decorative sheet according to one embodiment of the second invention.
  • FIG. 19 is a diagram showing an example of the shape of the asymmetrical reflecting portion (reflecting surface) according to the second invention.
  • FIG. 20 is a plan view of the reflecting portion of FIG. FIG.
  • FIG. 21 is a view showing another example of the shape of the asymmetrical reflecting portion (reflecting surface) according to the second invention.
  • FIG. 22 is a plan view of the reflecting portion of FIG.
  • FIG. 23 is a plan view showing another example of the shape of the asymmetrical reflector (reflecting surface) according to the second invention.
  • FIG. 24 is a diagram illustrating an example of the shape of a symmetric reflection part (reflection surface).
  • FIG. 25 is a diagram showing the reflected light distribution in the asymmetrical reflective part (reflective surface) and the symmetrical reflective part (reflective surface) according to the second invention in comparison.
  • FIG. 26 is a cross-sectional view showing a decorative sheet designed by applying the decorative sheet designing method according to the first embodiment of the third invention.
  • FIG. 27 is a diagram showing an example of the shape of the reflecting portion according to the third invention.
  • FIG. 28 is a flowchart showing a decorative sheet designing method according to the third invention.
  • FIG. 29 is a diagram illustrating an example of an image obtained by converting the pixel size and the number of gradations.
  • FIG. 30 is a diagram showing a state in which the image of FIG. 29 is made to correspond to one surface of the substrate.
  • FIG. 31 is a diagram showing an example of the arrangement of the reflecting portions according to the first embodiment of the third invention.
  • FIG. 32 is a diagram showing an example of a design system for executing the decorative sheet design method according to the third invention.
  • FIG. 33 is a diagram showing an example of the arrangement of the reflecting portions according to the second embodiment of the third invention.
  • FIG. 34 is a diagram showing an example of the arrangement of the reflecting portions according to the third embodiment of the third invention.
  • FIG. 35 is a diagram showing an example of the shape of the reflecting portion according to the first modification of the third invention.
  • FIG. 36 is a diagram showing an example of the shape of the reflecting portion according to the second modification of the third invention.
  • FIG. 37 is a diagram showing an example of the shape of the reflecting portion according to the third modification of the third invention.
  • FIG. 38 is a diagram showing an example of the shape of the reflecting portion according to the fourth modification of the third invention.
  • FIG. 39 is a diagram showing an example of the shape of the reflecting portion according to the fifth modification of the third invention.
  • FIG. 1 is a schematic cross-sectional view showing a cross-sectional configuration of a decorative sheet according to one embodiment of the first invention.
  • the decorative sheet 10 sandwiches the printing layer 12 between the base material sheet 11, a print layer 12 having a wood grain pattern provided on the base material sheet 11, and the base material sheet 11.
  • positioned on the printing layer 12 and the protective layer 14 provided on the transparent resin layer 13 are provided and comprised.
  • Such a decorative sheet 10 can be used as a surface plate (decorative plate) for interiors or furniture, for example, by bonding to a plywood (base material).
  • the base sheet 11 is a sheet that becomes a base of the decorative sheet 10 and is not particularly limited, but is made of, for example, a thermoplastic resin.
  • the base sheet 11 is preferably made of random PP (polypropylene) or HDPE (high density polyethylene), and may be made by adding an organic or inorganic pigment to these thermoplastic resins.
  • the printing layer 12 is a layer in which, for example, a wood grain pattern or the like is printed on the base sheet 11.
  • an ink used for the printing layer 12 for example, an organic resin or an inorganic pigment added to a urethane resin binder can be suitably used, but the ink is not limited thereto.
  • an adhesive layer may be added to the interface (printing layer 12) between the base sheet 11 and the transparent resin layer 13 of the decorative sheet 10.
  • a polypropylene-based adhesive resin can be used as the adhesive layer, but the adhesive layer is not limited to this, and the adhesiveness between the base sheet 11 and the transparent resin layer 13 of the decorative sheet 10 is taken into consideration. It can be selected appropriately.
  • the transparent resin layer 13 is made of a transparent resin provided on the printing layer 12 and is a part that reflects light incident on the decorative sheet 1 to embody shine.
  • a transparent resin layer 13 includes a sheet-like base material portion 13a having translucency, and a plurality of reflecting portions 20 that are provided on the main surface 13b of the base material portion 13a and reflect incident light in a predetermined direction. It has.
  • the base material portion 13a and the plurality of reflecting portions 20 of the transparent resin layer 13 are preferably formed integrally from, for example, polyethylene terephthalate (PET), but may be formed separately. The details of the transparent resin layer 13 will be described later.
  • PET polyethylene terephthalate
  • the protective layer 14 is a transparent layer provided on the outermost layer of the decorative sheet 10 on the transparent resin layer 13, and is a layer for protecting the transparent resin layer 13, particularly the reflective portion 20.
  • the protective layer 14 includes, for example, at least one of cross-linked resins such as a thermosetting resin, an ultraviolet curable resin, and an electron beam curable resin.
  • cross-linked resins such as a thermosetting resin, an ultraviolet curable resin, and an electron beam curable resin.
  • the protective layer 14 may be used alone or in combination.
  • the protective layer 14 can be formed by applying to the transparent resin layer 13 using a known coating apparatus.
  • the transparent resin layer 13 and the protective layer 14 are transparent as described above, in the decorative sheet 1, the grain pattern or the like of the printed layer 12 can be sufficiently visually recognized from the outside.
  • FIG. 2 is a schematic view showing a reflective portion of a transparent resin layer constituting the decorative sheet shown in FIG.
  • FIG. 2A a top view (FIG. 2A) and two cross-sectional views along each of the first direction and the second direction (FIG. ) And (c)).
  • the first direction is the left-right direction in the top view of FIG. 2A
  • the second direction is the up-down direction, and the same applies to the other drawings.
  • the first cross section is a cross section that intersects the main surface 13b of the transparent resin layer 13, and in the present embodiment, it is orthogonal to the main surface 13b of the transparent resin layer 13 in particular. And it is set as the cross-sectional shape in the plane containing a 1st direction.
  • the second cross section is a cross section orthogonal to (intersects) the main surface 13b of the transparent resin layer 13 and the first cross section, as shown in FIG.
  • the cross-sectional shape is a plane that includes a second direction that is orthogonal to the main surface 13b and that is orthogonal to the first direction.
  • each of the plurality of reflecting portions 20 is formed in a linear shape in the first cross section, and a reflecting main surface 21 that reflects incident light, and the reflecting main surface 21.
  • connection surfaces 22, 23 provided between the base material portions 13 a of the transparent resin layer 13.
  • the connection surfaces 22 and 23 are connected to the reflective main surface 21 in a circular arc shape to connect the reflective main surface 21 and the main surface 13 b of the transparent resin layer 13. In this manner, by providing the arc regions on the connection surfaces 22 and 23, light incident on the connection surfaces 22 and 23 among light incident on the decorative sheet 10 from the first direction can be scattered and reflected.
  • the reflection section 20 is entirely curved in the second cross section. With such a configuration, the reflection unit 20 can scatter-reflect light incident on the decorative sheet 10 from the second direction.
  • the reflecting portion 20 is shown as a convex shape, but may be a concave shape, and in this case, the reflecting main surface is constituted by a bottom surface.
  • the width of the first cross section and the second cross section is preferably 10 ⁇ m or more and 1 mm or less, more preferably 20 ⁇ m or more and 500 ⁇ m or less. This is because when the thickness is less than 10 ⁇ m, the rainbow color is shined due to the influence of the diffracted light, and when the thickness exceeds 1 mm, each of the reflection portions 20 is easily visually recognized by human eyes.
  • the length in the major axis direction and the minor axis direction of the reflecting portion 20 is 20 ⁇ m or more and 500 ⁇ m or less, respectively, the reflecting portion 20 can be made minute and the presence of the reflecting portion 20 can be made difficult to be visually recognized by a person. It can prevent more reliably that it shines in a color.
  • the height of the reflective main surface 21 from the main surface 13b of the transparent resin layer 13 is preferably 10 ⁇ m or more and 100 ⁇ m or less.
  • the linear portion at the center position of the linear reflecting main surface 21 has an inclination angle ⁇ of ⁇ 10 ° with the main surface 13b of the transparent resin layer 13 in the first cross section. It is inclined so as to be within a range of 40 degrees, and the angle ⁇ of the gradient varies within a range of ⁇ 40 degrees in each of the plurality of reflecting portions 20 (see FIG. 1). Note that, in some of the reflecting portions 20, the straight portion of the reflecting main surface 21 is parallel to the main surface 13 b of the transparent resin layer 13.
  • the incident light such as illumination light is mainly incident on the main surface 13 b of the transparent resin layer 13 and the reflection main surface 21 of the reflection portion 20. Is reflected.
  • the reflecting portion 20 is arranged so that the inclination angle ⁇ of the reflecting main surface 21 varies within a range of ⁇ 40 degrees (including 0 degree), the positive surface reflected by the main surface 13b of the transparent resin layer 13 is positive.
  • the reflected light see T1 and T1 ′ in FIG. 3
  • reflected light see T2 and T2 ′ in FIG. 3 in different directions is generated. Note that, for this gradient, for example, the angle ⁇ changes along the arrangement of the plurality of reflecting portions 20.
  • the area ratio of the reflecting portion 20 is the total area of the reflecting main surface 21 of the reflecting portion 20 per unit area of the main surface 13b of the base portion 13a of the transparent resin layer 13.
  • the area ratio of the reflection part 20 can be set arbitrarily, it is preferably in the range of 1% to 70%.
  • the area ratio of the reflection part 20 exceeds 70%, the area of the flat part of the main surface 13b of the transparent resin layer 13 decreases, and most of the reflected light from the decorative sheet 10 is attributed to the reflection part 20. This is because the amount of specularly reflected light is reduced, which is undesirable.
  • the area ratio of the reflective portion 20 in the transparent resin layer 13 is set in the range of 1% to 70%.
  • the area ratio of the reflection part 20 in the main surface 13b of the transparent resin layer 13 may be constant, you may make it fluctuate (density distribution) of the reflection part 20 by a place. That is, when it is desired to express the strength of the second reflection peak in the decorative sheet 10, for example, in the region where the second reflection peak is desired to be weakened, the area ratio of the reflecting portion 20 is lowered to a range of 1 to 20%, In the region where the reflection peak is desired to be strengthened, the area ratio can be as high as 50 to 70%, and in the middle, the area ratio can be set as 20 to 50%.
  • At least one of the main surface 13b of the transparent resin layer 13 and the reflecting portion 20 may be roughened.
  • the rough surface may be transferred, or the transparent resin layer 13 may be directly roughened.
  • a coating containing fine particles may be applied.
  • the surface roughness Ra is preferably in the range of 0.01 ⁇ m to 20 ⁇ m. If the thickness is 0.01 ⁇ m or less, the desired scattering characteristics cannot be obtained even if it is almost a mirror surface. On the other hand, if it exceeds 20 ⁇ m, the function of the reflecting portion 20 is deteriorated.
  • the surface roughness Ra of at least one of the surfaces of the plurality of reflecting portions 20 and the main surface 13b is 0.01 ⁇ m or more and 20 ⁇ m or less, it is preferable to reflect light in the direction of an appropriate angle range. Scattering characteristics can be obtained.
  • a plurality of reflecting portions 20 including convex portions (or concave portions) that reflect incident light in a direction different from the regular reflection direction with respect to the surface of the decorative sheet 1 are provided. It is possible to reproduce the shine that appears in the wood grain pattern.
  • the transparent resin layer 13 has translucency, a real wood grain feeling can be expressed by the printing layer 12 provided on one side, and the wood grain pattern of the printing layer 12 and a plurality of decorative sheets 10 can be expressed. A more realistic wood grain feeling can be expressed by aligning the illumination by the reflection unit 20.
  • this decorative sheet 10 since the plurality of reflecting portions 20 that embody shine by reflecting light in a direction different from the regular reflection direction are covered with the protective layer 14, the above-described shine is reproduced. It is possible to maintain the effect to be performed over a long period of time. As described above, according to the decorative sheet 10, it is possible to suitably reproduce the shiny luster that appears in the natural wood grain pattern.
  • FIG. 4 is a schematic diagram illustrating a reflecting portion according to a first modification.
  • the reflecting portion 20a includes a reflecting main surface 21a curved with a radius R1, a connection surface 22 curved with a radius r2 smaller than R1, and a connection surface 23 curved with a radius r3.
  • the sizes of the radii r2 and r3 may be the same or different.
  • the reflection main surface 21 When the reflection main surface 21 is a straight line, the width of the second reflection peak tends to be narrow, but in natural wood, the second reflection peak has a certain angle range, so the reflection main surface 21 is completely It is more desirable to bend like this modification 1 rather than a straight line (see FIG. 16).
  • the reflecting main surface 21a has a gentle curved line shape in which the tangents at any two points of the reflecting main surface 21a form an angle of 0 ° to 40 ° in the first cross section. .
  • the angle formed by the straight line m connecting the two end points of the reflective main surface 21a and the tangent line at the two end points of the reflective main surface 21a may be 20 degrees or less. This is because, if the radius of curvature of the reflective main surface 21a is too small, the change in the angle ⁇ formed by the reflective main surface 21a and the main surface 13b of the transparent resin layer 13 does not make sense.
  • the angle ⁇ of the gradient formed by the tangent at the curved portion at the center position of the reflection main surface 21a that is curved and the main surface 13b of the transparent resin layer 13 is ⁇ 40.
  • the second reflection peak is generated with respect to the regular reflection peak due to the main surface 13b of the transparent resin layer 13 in the same manner as the reflection portion 20 by varying within the range in each reflection portion 20a. Can be made. Moreover, by reflecting within such a range, light can also be reflected in the direction of an angular range where there are many opportunities to be visually recognized.
  • FIG. 5 is a schematic diagram illustrating a reflecting unit according to a second modification.
  • the reflecting portion 20b includes a reflecting main surface 21b curved with a radius R1, and a connecting surface 22b having a circular arc shape with a portion connected to the reflecting main surface 21b curved with a radius r2 smaller than R1.
  • the connecting surface 23 is curved with a radius r3, and the connecting surface 22b is linearly connected to one surface 13b of the transparent resin layer 13. In this case, it is possible to improve mold release when the transparent resin layer 13 is formed.
  • the reflective main surface 21b is the same as the reflective main surface 21a of Modification 1.
  • FIG. 6 is a schematic diagram illustrating a reflecting unit according to a third modification. As shown in FIG. 6, the reflecting portion 20c is such that the other end side of the reflecting main surface 21c is directly connected to one surface 13b of the transparent resin layer, and the connecting surface 23 is omitted.
  • connection surfaces 22 and 23 are omitted while maintaining the function of the reflection main surface 21c that reproduces the shine by generating the second peak, so that the incident light enters the connection surfaces 22 and 23.
  • the illumination light to be reduced can be reduced. Since the illumination light incident on the connection surfaces 22 and 23 is reflected in a direction different from the designed illumination direction, it is desirable to reduce the illumination light. However, of course, when the reflection main surface 21c is a straight line and the angle ⁇ formed between the reflection main surface 21c and one surface 13b of the transparent resin layer 13 is 0 degree, the connection surfaces 22 and 23 can be omitted.
  • the inclination angle ⁇ of the reflecting main surface 21c is the same as that of the reflecting main surface 21 of the reflecting portion 20 except for the above. Note that, as with the reflective main surface 21, the reflective main surface 21c varies within a range where the gradient angle ⁇ is ⁇ 40 degrees.
  • FIG. 7 is a schematic diagram illustrating a reflecting unit according to a fourth modification. As shown in FIG. 7, since two or more reflection parts 20d are periodically repeated in a wavy line shape, light incident on the transparent resin layer 13 from the second direction is reflected by the wavy line reflection part 20d. Scattered and reflected.
  • the first cross section of the reflecting portion 20d is the same as that of the reflecting portion 2, but may be the same as any of the reflecting portions 20a, 20b, and 20c.
  • FIGS. 8A to 8C are schematic views showing a reflecting portion according to a fifth modification. As shown in FIG. 8, the reflection main surface 21e is connected to the connection surface 22e via a portion curved at a minute radius r4 on one end side in the first cross section, and is minute on the other end side.
  • connection surface 23e is connected to one surface 13b of the transparent resin layer 13 through a connection surface 23e having a radius r5. Similar to the reflective main surface 21, the reflective main surface 21e fluctuates within a range of the gradient angle ⁇ of ⁇ 40 degrees. In this case, the reflective main surface 21e reproduces the shine by generating a second peak. While maintaining the function of the surface 21e, the connection surface 23e is substantially omitted, and the illumination light incident on the connection surface 23e can be reduced.
  • the connection surface 22e is connected to one surface 13b of the transparent resin layer 13 through a portion curved with a minute radius r6.
  • the reflective main surface 21e of the reflection part 20e which concerns on a 5th modification is the direction along the 1st cross section along the 2nd cross section. It has a planar shape with a minor axis.
  • the shape of the reflective main surface 21e along the second cross section is the same as the reflective main surface 21c of Modification 3.
  • FIG. 9 is a schematic diagram illustrating a reflecting unit according to a sixth modification.
  • the reflecting portion 20f is provided with connecting surfaces 24 and 25 at both ends of the reflecting main surface 21f in the second direction, and these connecting surfaces 24 and 25 are connected to one surface 13b. It has come to be.
  • these connection surfaces 24 and 25 are straight lines, but may be curved lines.
  • the reflecting main surface 21f and the connecting surfaces 22f and 23f in the first cross section correspond to the reflecting main surface 21e and the connecting surfaces 22e and 23e of the reflecting portion 20e according to the fifth modification, and have substantially the same shape. .
  • connection surfaces 24g and 25g are provided at both ends of the reflective main surface 21f, and the reflective main surface 21f positioned therebetween is linear.
  • the fifth modification is different from the fifth modification, and other configurations are the same as the fifth modification.
  • FIG. 10 is a schematic diagram illustrating a reflecting unit according to a seventh modification. As shown in FIG. 10, in the second direction, the reflecting portion 20g is provided with connecting surfaces 24g and 25g having gentle curves at both ends of the linear reflecting main surface 21g, and these connecting surfaces 24g, 25g is connected to one surface 13b.
  • FIG. 10 is a schematic diagram illustrating a reflecting unit according to a seventh modification. As shown in FIG. 10, in the second direction, the reflecting portion 20g is provided with connecting surfaces 24g and 25g having gentle curves at both ends of the linear reflecting main surface 21g, and these connecting surfaces 24g, 25g is connected to one surface 13b.
  • connection surfaces 24g and 25g are curved lines, but may be linear.
  • the reflection main surface 21g and the connection surfaces 22g and 23g in the first cross section correspond to the reflection main surface 21e and the connection surfaces 22e and 23e of the reflection unit 20e according to the fifth modification, and have substantially the same shape.
  • FIG. 11B is a schematic diagram illustrating a reflecting portion according to an eighth modification.
  • the reflecting portion 20h is provided with connecting surfaces 22e and 23h having gentle curves at both ends of the reflecting main surface 21e in the first direction.
  • the part is inverted and connected to one surface 13b. Since the connecting surface 23h has an inverted R shape that draws such a skirt, when a transparent resin layer is formed by the method described later, the flow of the resin and the release of the plate can be performed smoothly, improving the moldability. Can be made.
  • FIG. 12 (a) is a schematic diagram (a protective layer is omitted) showing the arrangement of the reflective portions in the decorative sheet
  • FIG. 12 (b) is a cross-sectional view taken along the line XIIb-XIIb.
  • the gradient due to the tangent at the straight line or the curved portion at the center position of the reflective main surface 21 and the surface 13b of the transparent resin layer 13 is the first.
  • the transition of the angle ⁇ along the plurality of reflecting portions 20 in the first direction parallel to the cross section is the angle along the alignment of the plurality of reflecting portions 2 in the second direction parallel to the second cross section.
  • the fluctuation is larger than the change of ⁇ .
  • the reflection of the light can be made anisotropic by the arrangement of the reflecting portions 20, and the anisotropy of the scattered reflection can be expressed in a linear shape or a belt shape.
  • the decorative sheet 10 in which the gradient angle ⁇ does not change in the second direction and is constant is shown.
  • FIG. 13 is a schematic diagram showing another arrangement of the reflecting portions.
  • the gradient due to the tangent at the straight line or the curved portion at the center position of the reflective main surface 21 and the main surface 13 b of the transparent resin layer 13 is parallel to the second cross section. Transition of the angle ⁇ along the arrangement of the plurality of reflecting portions 2 in a certain second direction is based on the change of the angle ⁇ along the arrangement of the plurality of reflecting portions 2 in the first direction parallel to the first cross section. The fluctuation is increasing.
  • the reflection of the light can be given anisotropy by the arrangement of the reflecting portions 20, and the anisotropy of the scattered reflection can be expressed in a linear shape or a belt shape.
  • the decorative sheet 10 in which the gradient angle ⁇ does not change in the first direction and is constant is shown.
  • the anisotropy of the scattering reflection is expressed in a linear shape or a belt shape by giving the reflecting portion 20 itself an anisotropy of the scattering reflection and also having an anisotropy in the arrangement. Can do.
  • FIG. 14 is a schematic diagram illustrating fluctuations with respect to the arrangement of the reflection parts
  • FIG. 15 is a schematic diagram illustrating another fluctuations with respect to the arrangement of the reflection parts.
  • the decorative sheet 10 may add fluctuation to the position where the plurality of reflecting portions 20 are arranged.
  • the decorative sheet 10 may add fluctuation to the arrangement without adding fluctuation to the position where the plurality of reflecting portions 20 are arranged.
  • the gradient angle ⁇ between the reflection main surface 21 of the reflection unit 20 and the like and the main surface 13b of the transparent resin layer 13 is ⁇ in the first direction. Fluctuates within a range of 40 degrees or less, but for example, the transition of the angle ⁇ such as ⁇ 35 degrees ⁇ ⁇ 30 degrees,... ⁇ 5 degrees ⁇ 0 degrees ⁇ + 5 degrees ⁇ ... + 30 degrees ⁇ + 35 degrees,. May be repeated. Further, the transition of the gradient angle ⁇ may be a large step value such as 5 ° as described above, but may be a small step value of 1 ° or less. The smaller the step value, the smoother the change in the angle at which the second reflection peak occurs when the incident angle of light and the observation position are changed, and the smooth movement of the part where the light is radiated is desirable. Larger values simplify the manufacturing process.
  • the gradient of the reflection main surface 21 of the reflection portion 20 and the main surface 13b of the transparent resin layer 13 may periodically repeat the transition of the angle ⁇ .
  • the transition of the angle ⁇ along the alignment of the plurality of reflecting portions 20 in the first and second directions of the gradient is periodic, the reflection main surface 21 in which the angle ⁇ of the gradient periodically changes is used. Light is reflected over the direction of an appropriate angle range. Therefore, in the decorative sheet 10, it is possible to reproduce the shiny luster that appears in the wood grain pattern of natural wood.
  • the transparent resin layer 13 of the decorative sheet 10 may have a plurality of regions in which the plurality of reflecting portions 20 are provided so that the gradient angle ⁇ and the period in which the gradient angle ⁇ transitions are different from each other. Good. In this case, it is possible to set a region where the reflected light is to be expressed strongly and a region where the reflected light is to be expressed weakly, and it is possible to reproduce the shiny luster that appears in the wood grain pattern of natural wood. That is, when the gradient by the reflection main surface 21 of the reflection part 20 and the main surface 13b of the transparent resin layer 13 periodically repeats the transition of the angle ⁇ , the variation period may be one type, but may be composed of two or more types.
  • the variation range of the angle ⁇ in one cycle may be one type or two or more types.
  • the width of one cycle at a certain location is 50 mm and the variation in angle ⁇ is in the range of ⁇ 35 degrees
  • the width of one cycle in another location is 20 mm
  • the variation in angle ⁇ is in the range of ⁇ 20 degrees.
  • the angle ⁇ varies continuously between different periods.
  • the transition of the gradient angle ⁇ between the reflective main surface 21 of the reflective portion 20 and the main surface 13b of the transparent resin layer 13 may be changed one by one for the plurality of reflective portions 20 arranged side by side.
  • the angle ⁇ may be changed with two or more reflecting portions 20 as one unit.
  • ten reflecting portions 20 arranged side by side in the first direction may be taken as one unit, and within one unit, the gradient angle ⁇ between the reflecting main surface 21 and the main surface 13b may be constant.
  • the number of reflection units 20 in one unit may vary (see FIGS. 14 and 15).
  • the transparent resin layer 13 is formed by integrating the base portion 13a and the reflective portion 20 by, for example, an extrusion method, an injection molding method, or a hot press molding method using a plate in which a concave portion corresponding to the reflective portion 20 is formed by cutting. Can be molded.
  • the resin used for the transparent resin layer 13 include polyethylene terephthalate (PET), polyethylene-2,6-naphthalate, polypropylene terephthalate, polybutylene terephthalate, cyclohexanedimethanol copolymer polyester resin, isophthalic acid copolymer polyester resin, and spolog.
  • Polyester resins such as recall-copolymerized polyester resins and fluorene-copolymerized polyester resins, polyolefin resins such as polyethylene, polypropylene (homopolymers, random copolymers, block copolymers), polymethylpentene, and alicyclic olefin copolymer resins, polymethyl Acrylic resins such as methacrylate, polycarbonate, polystyrene, polyamide, polyether, polyester amide, polyether ester, polyvinyl chloride Le, cycloolefin polymers, polyacrylonitrile copolymers, acrylonitrile-styrene copolymer, and copolymers and these components, also can be used as mixtures of these resins are not particularly limited.
  • an ultraviolet absorber or a light stabilizer may be added.
  • the plate for forming the reflection portion 20 is used for the hot pressing method, the ultraviolet curing molding method, the electron beam curing method.
  • the reflective portion 20 may be formed by a molding method or the like.
  • the base material sheet 11 provided with the printing layer 12 is bonded to the transparent resin layer 13 thus produced with an adhesive or the like, or the above-described molding is performed on the base material sheet 11 provided with the printing layer 12.
  • the transparent resin layer 13 is molded using the method, and then the protective layer 14 is formed on the reflective portion 20 side of the transparent resin layer 13. Thereby, the decorative sheet 10 mentioned above can be obtained.
  • each reflecting main surface 21 is linear or gently curved in the first cross section.
  • the gradient of the tangent line to the main surface 13b at the center position of the reflection main surface 21 with respect to the main surface 13b varies within a range of ⁇ 40 degrees in each of the plurality of reflection portions 20.
  • the reflection main surface 21 having a different gradient can emit reflected light at an angle different from the regular reflection angle on the main surface 13b of the transparent resin layer 13, and the light can be emitted in the direction of an appropriate angle range. Since it is reflected, it is possible to reproduce the shine that appears in the wood grain pattern.
  • each reflective main surface 21 is a curved line shape in the 2nd cross section, it can also be set as the scattered reflected light which does not have a specific reflection peak.
  • the transparent resin layer 13 has translucency, by arranging the woodgrain print layer 12 on the surface side where the reflecting portion 20 is not provided, a realistic wood texture can be expressed.
  • the print layer 12 can be protected from deterioration.
  • by aligning the wood grain pattern of the printing layer 12 and the arrangement direction of the reflection part 20 of the transparent resin layer 13, the effect of expressing a realistic wood texture is further enhanced.
  • the decorative sheet 10 according to the present embodiment it is possible to suitably reproduce the shiny luster that appears in the natural wood grain pattern.
  • the decorative sheet 10 described above is provided with the reflection portion 20 that reflects incident light in a direction different from the regular reflection angle, but the regular reflection portion (convex portion or concave portion) that reflects incident light at the regular reflection angle.
  • the regular reflection portion convex portion or concave portion
  • a flat portion may be provided).
  • the part where the light is not regularly reflected and the part where the light is regularly reflected can be provided in the same decorative sheet, it is possible to reproduce more natural shine.
  • the decorative sheet 10 may be provided with not only the reflection part 20 described above but also a concave part or a convex part (not shown) representing a conduit, and in this case, a more realistic wood texture can be expressed. .
  • the printing of the wood grain pattern is used as the printing layer 4, but the present invention is not limited to this, and an arbitrary pattern may be adopted.
  • the decorative sheet 10 may further include a foamed resin layer between the base sheet 11 and the print layer 12. When the foamed resin layer is provided in this way, an impact buffering function, a heat retaining function, and the like can be imparted to the decorative sheet 10.
  • a decorative sheet 10 having a transparent resin layer 13 as shown below was prepared.
  • the reflection part 20 of the produced transparent resin layer 13 was comprised so that the reflective main surface 21 and the connection surfaces 22 and 23 might be included in the 1st cross section.
  • the reflecting main surface 21 is curved, and the angle formed between the straight line connecting the two end points and the tangent line at the two end points is 10 degrees, and the length of the straight line connecting the two end points is 50 ⁇ m.
  • the connection surfaces 22 and 23 were arcuate (see FIG. 5).
  • the angle ⁇ formed between the tangent to the curved portion at the center position of the reflective main surface 21 and the main surface 13b of the transparent resin layer 13 is 0 degree
  • the tangent at the contact point between the connection surfaces 22 and 23 and the reflective main surface 21 is 10 degrees
  • the angle between the tangent at the other point of the arc and the main surface 13b of the transparent resin layer 13 is 50 degrees.
  • the resin layer 13 side was a straight line having an angle of 50 degrees with the main surface 13b of the transparent resin layer 13 (see FIG. 5).
  • the reflection part 20 of the produced transparent resin layer 13 has an arc shape as a whole in the second cross section, and the tangent line at the point of contact with the main surface 13 b of the transparent resin layer 13 is between the main surface 13 b of the transparent resin layer 13.
  • the angle formed by was 25 degrees.
  • the plurality of reflecting portions 20 having the above-described configuration are arranged side by side as follows. That is, the angle ⁇ formed between the tangent at the center position of the reflective main surface 21 and the main surface 13b of the transparent resin layer 13 is 5 degrees within a range of ⁇ 30 degrees along the arrangement of the plurality of reflecting portions 20 in the second direction. Changed so that it fluctuated in increments. Moreover, it was set as the arrangement
  • the reflection parts 20 were 10 mm, 8 mm, 3 mm, 6 mm, 10 mm, 6 mm, 3 mm, 8 mm, 10 mm, 8 mm, 3 mm, 6 mm, 10 mm, 6 mm, and 3 mm, and the width was 100 mm as a whole.
  • the reflection parts 20 are arranged side by side at a constant pitch.
  • the area ratio of the reflection part 20 was 30%.
  • sand blasting treatment was performed on a mold for forming such a transparent resin layer 13 so that the surface roughness on the flat surface onto which the main surface 13b of the transparent resin layer 13 was transferred was about 2 ⁇ m. Further, a pattern for transferring the concave portion representing the conduit was also formed on the mold.
  • a mold was prepared in which a flat mold was formed with the same sandblasting process and a pattern for transferring a recess representing a conduit.
  • Example and comparative example it has an embossed surface by shape
  • the decorative sheet 10 and the decorative sheet by a comparative example were obtained.
  • the decorative sheet 10 according to the example a band-like bright line was seen under illumination, and a visual expression in which the band-like bright line moved when the viewing angle or the angle of the decorative sheet 10 was changed was obtained.
  • the decorative sheet according to the comparative example did not produce the bright line as described above. By comparing the two, it was confirmed that the decorative sheet 10 according to the example can reproduce the shiny luster that appears in the wood grain pattern of natural wood.
  • FIG. 17 is a diagram illustrating an example of a natural wood grain pattern.
  • FIG. 18 is a cross-sectional view showing a decorative sheet according to one embodiment of the second invention.
  • the decorative sheet 105 has a luster that simulates natural wood, and is used as a surface material for interiors and furniture by being bonded to plywood or the like.
  • FIG. 17 shows, as an example, natural wood having a wood grain pattern along the Y-axis direction in the drawing.
  • the wood grain pattern has a shiny luster. That is, when light enters in the Y-axis direction, gloss appears in a direction different from the regular reflection direction. And if the incident angle or observation position of light is moved, the location where shine appears will move.
  • the decorative sheet 105 includes a sheet-like lower layer base material 106, a print surface 104 with a wood grain pattern provided on the lower layer base material 106, and a printing surface 104 between the lower layer base material 106. And an embossed sheet 101 disposed on the lower layer base material 106 so as to sandwich them.
  • the material of the lower layer base material 106 is not particularly limited, but for example, a thermoplastic resin can be used.
  • suitable materials for the lower layer substrate 106 include random PP (polypropylene), HDPE (high density polyethylene), and the like, and organic or inorganic pigments may be added to these thermoplastic resins.
  • an urethane resin binder to which an organic or inorganic pigment is added can be suitably used, but the ink is not limited thereto.
  • An adhesive layer (not shown) may be added to the interface (printing surface 104) between the lower layer base material 106 and the embossed sheet 101 of the decorative sheet 105.
  • the adhesive layer for example, a polypropylene-based adhesive resin or the like can be used.
  • the adhesive layer is not limited to this, and is appropriately selected in consideration of the adhesiveness between the lower layer base material 106 of the decorative sheet 105 and the embossed sheet 101. Can do.
  • an anchor layer in which an isocyanate system is mixed with polyester polyol may be added between the lower layer base material 106 and the adhesive layer of the decorative sheet 105.
  • FIG. 19 is a diagram illustrating an example of the shape of an asymmetrical reflection part (reflection surface).
  • FIG. 20 is a plan view of the reflecting portion of FIG.
  • the embossed sheet 101 includes a sheet-like base material 103 having translucency, and a plurality of reflecting portions that are provided on one surface 131 of the base material 103 and reflect incident light. 102.
  • FIG. 19 is a top view (FIG. 19A) and a Y-axis direction (first direction) along one surface 131 of the reflecting portion 102 ⁇ / b> A that is a part of the plurality of reflecting portions 102.
  • a vertical sectional view (FIG.
  • FIG. 20 shows a top view of the reflecting portion 102A of FIG. 19A, and is a diagram for explaining symbols and the like not shown in FIG. 19A.
  • Each of the reflecting portions 102 ⁇ / b> A is provided on the one surface 131 of the base material 103 so as to be two-dimensionally arranged with a space therebetween.
  • each of the plurality of reflecting portions 102A has a reflecting surface 124 including a reflecting main surface 121 that reflects incident light, and a first connecting surface 123 and a second connecting surface 122. is doing.
  • the first connection surface 123 and the second connection surface 122 are provided between the reflective main surface 121 and one surface 131 of the base material 103.
  • the reflection main surface 121 is linear in a cross section perpendicular to the X-axis direction, and reflects incident light.
  • Each of the reflecting portions 102 ⁇ / b> A is formed such that a straight line of the reflecting main surface 121 in a cross section perpendicular to the X-axis direction is inclined with respect to the one surface 131.
  • the reflective main surface 121 may have a curved line shape in a cross section perpendicular to the X-axis direction.
  • each of the reflecting portions 102A has a Y-axis of the reflective main surface 121 in a cross-section perpendicular to the X-axis direction.
  • the tangent at the center position in the axial direction is formed so as to have an inclination with respect to one surface 131.
  • FIG. 19 illustrates the reflecting portion 102A formed so that the inclination is a predetermined angle ⁇ 1.
  • the reflecting portion 102 ⁇ / b> A having the reflecting main surface 121 that is inclined at an angle ⁇ ⁇ b> 1 so as to approach one surface 131 toward the positive Y-axis direction
  • both the reflecting portion 102A having the reflecting main surface 121 inclined at an angle ⁇ 1 so as to approach one surface 131 toward the negative Y-axis direction in the opposite direction with respect to the ZX plane may be provided.
  • the bright portion at one observation position becomes the dark portion at the other observation position. And the position which was a dark part in one observation position turns into a bright part in another observation position.
  • the first connection surface 123 and the second connection surface 122 include, in a cross section perpendicular to the X-axis direction, a portion connected to the reflection main surface 121 includes an arc-shaped region, and the reflection main The surface 121 and one surface 131 of the base material 103 are connected.
  • the first connection surface 123 is provided at the end portion P1 that is closer to the one surface 131 of the both end portions P1 and P2 of the reflective main surface 121 in a cross section perpendicular to the X-axis direction.
  • the first connection surface 123 is connected to one surface 131 at an end P0 on the opposite side to the reflective main surface 121.
  • the second connection surface 122 is provided at the end portion P2 that is farther from the one surface 131 of the both end portions P1 and P2 of the reflective main surface 121 in a cross section perpendicular to the X-axis direction.
  • the second connection surface 122 includes a first region 122a, a second region 122b, and a third region 122c in order from the reflective main surface 121 side.
  • region 122a is connected to the reflective main surface 121 in the edge part P2 of the reflective main surface 121, and exhibits the curve line shape which becomes convex in the Z-axis positive direction.
  • the first region 122a is connected to the second region 122b at the end P3 on the opposite side to the reflective main surface 121.
  • the second region 122b is inclined so as to approach one surface 131 from the end portion P3 connected to the first region 122a toward the opposite end portion P4.
  • the second region 122b has a linear shape in a cross section perpendicular to the X-axis direction.
  • the second region 122b is connected to the third region 122c at the end portion P4 opposite to the reflective main surface 121.
  • the second region 122b may have a curved line shape in a cross section perpendicular to the X-axis direction.
  • the third region 122c is connected to one surface 131 at the end P5 on the opposite side to the second region 122b.
  • each of the reflecting portions 102 does not necessarily have both the first connection surface 123 and the second connection surface 122.
  • each of the reflection portions 102 may be formed so that the end portion P1 is directly connected to the one surface 131 without having the first connection surface 123.
  • the entire reflecting portion 102A has a curved line shape in a cross section perpendicular to the Y-axis direction.
  • the reflecting portion 102A can scatter-reflect light incident on the embossed sheet 101 from the Y-axis direction.
  • the reflecting portion 102A is shown as having a convex shape, but may have a concave shape.
  • the width of the cross section perpendicular to the X-axis direction and the cross section perpendicular to the Y-axis direction is preferably 10 ⁇ m to 1 mm, more preferably 50 ⁇ m to 500 ⁇ m. This is because if it is less than 10 ⁇ m, it will shine in iridescent due to the influence of diffracted light, and if it exceeds 1 mm, each of the reflecting portions 102A will be easily visible to the human eye.
  • the edge portion 140 includes a pair of first curved portions 141 and 142, a pair of second curved portions 143 and 144, and intermediate portions 145, 146, 147 and 148. And have.
  • the pair of first curved portions 141 and 142 are opposed to each other so as to protrude outward in the Y-axis direction.
  • the first bending portion 141 is provided on the Y axis positive direction side of the reflecting portion 102A and is formed to be convex in the Y axis positive direction.
  • the first bending portion 142 is provided on the Y axis negative direction side of the reflecting portion 102A, and is formed to be convex in the Y axis negative direction.
  • the first bending portion 141 is an outer peripheral portion of the first connection surface 123 in the edge portion 140.
  • the first curved portion 142 is an outer peripheral portion of the third region 122 c of the second connection surface 122 in the edge portion 140.
  • the pair of first bending portions 141 and 142 is formed at a position where a first straight line L1 connecting the vertices 141a and 142a in the Y-axis direction of the first bending portions 141 and 142 is parallel to the Y-axis direction.
  • the pair of second curved portions 143 and 144 are opposed to each other so as to protrude outward in the X-axis direction.
  • the second bending portion 143 is provided on the X axis positive direction side of the reflecting portion 102A and is formed to be convex in the X axis positive direction.
  • the second bending portion 144 is provided on the X-axis negative direction side of the reflecting portion 102A, and is formed to be convex in the X-axis negative direction.
  • the second curved portions 143 and 144 are outer peripheral portions of the first region 122 a of the second connection surface 122 in the edge portion 140.
  • the pair of second bending portions 143 and 144 is formed at a position where a second straight line L2 connecting the vertices 143a and 144a in the X-axis direction of the second bending portions 143 and 144 is parallel to the X-axis direction.
  • Intermediate portions 145, 146, 147, and 148 connect the first bending portions 141 and 142 and the second bending portions 143 and 144, respectively.
  • the intermediate portion 145 connects the first bending portion 141 and the second bending portion 143
  • the intermediate portion 146 connects the first bending portion 141 and the second bending portion 144
  • the portion 147 connects the first bending portion 142 and the second bending portion 143
  • the intermediate portion 148 connects the first bending portion 142 and the second bending portion 144.
  • the intermediate portions 145, 146, 147, and 148 have a gentle curved line shape (substantially linear shape) having a larger radius of curvature than the first curved portions 141 and 142 and the second curved portions 143 and 144.
  • the intermediate portions 145, 146, 147, and 148 are formed so as to protrude outward from the reflecting portion 102A. Note that the intermediate portions 145, 146, 147, and 148 may be linear.
  • the reflection surface of the reflection portion 102A formed in this way is asymmetric in the Y-axis direction (predetermined direction) in the Z-axis direction view (plan view).
  • the edge portion 140 of the reflecting surface 124 of the reflecting portion 102A has an asymmetric shape with respect to a straight line along the X-axis direction (that is, not a line-symmetric shape).
  • the intersection C between the first straight line L1 and the second straight line L2 is at a position shifted in the Y-axis direction from the midpoint M1 of the first straight line L1. More specifically, the intersection C is located at a position shifted from the midpoint M1 of the first straight line L1 by a distance of 10% to 40% of the length of the first straight line L1 in the Y-axis direction.
  • the reflecting portion 102A of the pair of first curved portions 141, 142, the one having the larger distance from the vertex 141a, 142a in the Y-axis direction to the intersection C between the first straight line L1 and the second straight line L2.
  • the first bending portion is the first bending portion 141.
  • a straight line passing through both ends 145a and 145b of the intermediate portion (first intermediate portion) 145 on the one end 141b side of the first bending portion 141 is referred to as a third straight line L3.
  • a straight line passing through both ends 146a and 146b of the intermediate portion (second intermediate portion) 146 on the other end 141c side of the first bending portion 141 is referred to as a fourth straight line L4.
  • the reflecting portion 102A is formed such that the angle formed by the third straight line L3 and the fourth straight line L4 is a predetermined angle ⁇ 1 when the reflecting surface is viewed in plan.
  • the reflective portion 102A shown in FIGS. 19 and 20 has been described as an example of the reflective portion 102 of the embossed sheet 101.
  • the embossed sheet 101 is a reflective portion 102B that is a reflective portion 102 having a shape different from that of the reflective portion 102A. May be further provided.
  • FIG. 21 is a diagram illustrating another example of the shape of the asymmetrical reflection part (reflection surface).
  • FIG. 22 is a plan view of the reflecting portion of FIG.
  • the reflecting portion 102B is different from the above-described reflecting portion 102A in the shape of the edge portion 140 and the inclination of the reflecting main surface 121 when viewed in the X-axis direction.
  • the difference will be mainly described, and the description of the same configuration as that of the reflection unit 102A will be omitted.
  • the intermediate portions 145 and 146 have a gentle curved line shape having a larger radius of curvature than the first curved portions 141 and 142 and the second curved portions 143 and 144.
  • the intermediate parts 145 and 146 are linear.
  • the reflecting portion 102B is formed such that an angle formed by the third straight line L3 and the fourth straight line L4 is a predetermined angle ⁇ 2 different from the angle ⁇ 1 in the reflecting portion 102A. Therefore, in the embossed sheet 101, the angle formed by the third straight line L3 and the fourth straight line L4 is between the reflective part 102A that is a part of the plurality of reflective parts 102 and the reflective part 102B that is the other part. They are different from each other.
  • the reflecting portion 102B has a reflecting main surface 121 that is inclined at an angle ⁇ 2 so as to approach one surface 131 in the positive Y-axis direction.
  • the reflecting portion 102B may have a reflecting main surface 121 that is inclined at an angle ⁇ 2 so as to approach the one surface 131 in the negative Y-axis direction in the opposite direction to the ZX plane.
  • the reflecting surfaces 124 of the plurality of reflecting portions 102A and 102B provided on the one surface 131 of the base material 103 are asymmetric in the Y-axis direction in plan view. It is. Therefore, the light incident in the Y-axis direction with respect to the reflecting portions 102 ⁇ / b> A and 102 ⁇ / b> B is reflected by the reflecting surface 124 including the reflecting main surface 121, the first connecting surface 123, and the second connecting surface 122. Reflected at an angle different from the regular reflection angle on the surface 131. Thereby, when the incident angle of light or the observation position is moved, the location where the light is shined can be moved, so that it is possible to reproduce the gloss imitating natural wood.
  • the reflecting portions 102 ⁇ / b> A and 102 ⁇ / b> B are a pair of first curved portions that face each other so as to protrude outward in the Y-axis direction at the edge 140 that is the outer periphery in plan view. 141, 142, and a pair of second bending portions 143, 144 facing each other so as to protrude outward in the X-axis direction, and the first bending portions 141, 142 and the second bending portions 143, 144 are connected.
  • the reflecting surfaces of the reflecting portions 102A and 102B which are intermediate portions 145, 146, 147, and 148, respectively, which are part of the reflecting portions 102, are asymmetric in the Y-axis direction in plan view. Therefore, the light incident in the Y-axis direction with respect to the reflecting portions 102 ⁇ / b> A and 102 ⁇ / b> B is reflected by the reflecting surface 124 including the reflecting main surface 121, the first connecting surface 123, and the second connecting surface 122. Reflected at an angle different from the regular reflection angle on the surface 131. Therefore, the effect of the embossed sheet 101 can be suitably realized.
  • the intermediate portions 145, 146, 147, and 148 have a linear shape or a curved linear shape having a larger curvature radius than the first curved portions 141 and 142 and the second curved portions 143 and 144. Presents. For this reason, the effect of the said embossed sheet 101 is suitably realizable.
  • the first straight line L1 connecting the vertices 141a and 142a in the Y-axis direction of the pair of first curved portions 141 and 142 and the vertices 143a in the X-axis direction of the pair of second curved portions 143 and 144 are provided.
  • 144a the intersection C with the second straight line L2 is shifted in the Y-axis direction from the midpoint M1 of the first straight line L1 in the reflecting parts 102A and 102B, which are a part of the reflecting parts 102, respectively. In position. For this reason, the effect of the said embossed sheet 101 is suitably realizable.
  • the intersection C between the first straight line L1 and the second straight line L2 is the midpoint M1 of the first straight line L1 in the reflecting portions 102A and 102B, which are a part of the reflecting portions 102, respectively. Is displaced by a distance of 10% or more and 40% or less of the length of the first straight line L1 in the Y-axis direction. For this reason, since the intersection C of the first straight line L1 and the second straight line L2 is at a position shifted from the middle point M1 of the first straight line L1 by a distance of 10% or more of the length of the first straight line L1, reflection is performed. The ratio of the reflective main surface 121 to the surface 124 is increased.
  • the incident light to the reflecting portions 102A and 102B can be reflected efficiently.
  • the intersection C between the first straight line L1 and the second straight line L2 is located at a position shifted from the midpoint M1 of the first straight line L1 by a distance of 40% or less of the length of the first straight line L1, so that a pair of Of the first curved portions 141 and 142, in the first curved portion 142 having the smaller distance from the vertexes 141a and 142a to the intersection C in the Y-axis direction, the reflecting portions 102A and 102B with respect to the one surface 131 of the base material 103 An excessive rise angle is suppressed. Therefore, the reflecting portions 102A and 102B can be easily provided on the base material 103.
  • the reflecting part 102A which is a part of the plurality of reflecting parts 102 and the reflecting part 102B which is the other part. That is, the reflective part 102A which is a part of the plurality of reflective parts 102 provided on the one surface 131 of the base material 103 and the reflective part 102B which is the other part have different shapes. For this reason, light incident on the reflecting portions 102A and 102B in a predetermined direction has different angles by the reflecting surface 124 including the reflecting main surface 121 and the first connecting surface 123 and the second connecting surface 122 having different shapes. In addition, the light is reflected at an angle different from the regular reflection angle on the one surface 131 of the base material 103. Thereby, when the incident angle or the observation position of light is moved, the location where the light is shined can be moved in a more complicated manner, so that the luster imitating natural wood can be reproduced in more detail.
  • the decorative sheet 105 is configured to include the embossed sheet 101.
  • the effect of the said embossed sheet 101 is suitably realizable.
  • the embossed sheet 101 includes the reflecting portions 102A and 102B as the reflecting portion 102
  • the embossing sheet 101 may include only one of the reflecting portions 102A and 102B as the reflecting portion 102.
  • FIG. 24 is a plan view showing another example of the shape of the asymmetrical reflecting portion (reflecting surface). As shown in FIG. 23, at least one reflecting surface 124 of the reflecting portion 102 is asymmetric in the Y-axis direction. In addition to the shape, the shape may be asymmetric in the X-axis direction.
  • the intersection C between the first straight line L1 and the second straight line L2 is in the Y-axis direction from the midpoint M1 of the first straight line L1.
  • it may be at a position deviated from the midpoint M2 of the second straight line L2 in the X axis direction.
  • the reflection surface 124 including 122 is reflected at an angle different from the regular reflection angle on the one surface 131 of the base material 103.
  • the intersection C between the first straight line L1 and the second straight line L2 is 10 of the length of the second straight line L2 from the middle point M2 of the second straight line L2 in the X-axis direction.
  • the position may be shifted by a distance of not less than% and not more than 40%.
  • reflection is performed.
  • the ratio of the reflective main surface 121 to the surface 124 is increased. Therefore, the incident light on the reflecting portion 102C can be efficiently reflected.
  • intersection C between the first straight line L1 and the second straight line L2 is located at a position shifted from the midpoint M2 of the second straight line L2 by a distance of 40% or less of the length of the second straight line L2, so that a pair of Among the second bending portions 143 and 144, in the second bending portion 144 having a smaller distance from the vertexes 143a and 144a in the X-axis direction to the intersection C between the first straight line L1 and the second straight line L2, It is suppressed that the angle at which the reflecting portion 102C rises with respect to the one surface 131 is excessive. Therefore, the reflecting portion 102 ⁇ / b> C can be easily provided on the base material 103.
  • the reflection surfaces 124 of at least some of the plurality of reflection portions 102 may be symmetrical in a predetermined direction (for example, the X-axis direction and the Y-axis direction) in plan view.
  • a predetermined direction for example, the X-axis direction and the Y-axis direction
  • the reflecting portion 102 is not provided at a position where it is not necessary to cause illumination, between the positions where the asymmetrical reflecting portions 102A and 102B are provided.
  • FIG. 24 is a diagram illustrating an example of the shape of a symmetric reflection part (reflection surface).
  • the reflective portion 202 having a symmetrical shape has a reflective main surface 221 that reflects incident light, and a reflective surface 224 that includes a first connection surface 223 and a second connection surface 222. Yes.
  • the first connection surface 223 and the second connection surface 222 are provided between the reflective main surface 221 and one surface 131 of the base material 103.
  • the reflective main surface 221 is linear in a cross section perpendicular to the X-axis direction, and reflects incident light.
  • the reflecting portion 202 is formed such that a straight line of the reflecting main surface 221 in a cross section perpendicular to the X-axis direction is parallel to the one surface 131.
  • edge portion 240 that is the outer periphery of the reflecting portion 202 in the Z-axis direction view (plan view) includes a pair of curved portions 241 and 242 facing in the Y-axis direction and a pair of straight portions 243 facing in the X-axis direction. 244.
  • FIG. 25 is a diagram showing the reflected light distribution in an asymmetrical reflection part (reflection surface) and a symmetric reflection part (reflection surface) in comparison.
  • FIG. 25 shows the relationship between the reflection angle and the reflected light intensity when light is incident on each of the asymmetrical reflecting portion 102A and the symmetrically reflecting portion 102.
  • the reflecting part 102A two reflecting parts 102A having different angles ⁇ 1 (a reflecting part 102A having a relatively small angle ⁇ 1 and a reflecting part 102A having a relatively large angle ⁇ 1) are illustrated. Yes.
  • the incident light is incident on the one surface 131 of the base material 103 at an angle of 30 deg.
  • a peak of reflected light intensity occurs at a reflection angle position of about 38 degrees.
  • a peak of reflected light intensity occurs at a reflection angle position of about 48 deg.
  • the symmetrical reflection part 202 the peak of reflected light intensity does not occur except for the position of regular reflection. Therefore, it was confirmed that the symmetric reflection part 202 cannot express the illumination appropriately as compared with the asymmetrical reflection part 102A.
  • the reflection surface is an edge that is an outer periphery in a plan view, A pair of first curved portions facing each other so as to protrude outward in a first direction along the one surface; A pair of second curved portions facing each other so as to protrude outward in a second direction along the one surface and perpendicular to the first direction; An intermediate portion connecting each of the first bending portions and each of the second bending portions; The embossed sheet according to appendix 1, wherein at least some of the reflecting surfaces of the plurality of reflecting portions are asymmetric in the first direction in plan view.
  • intersection point is a position that is shifted by a distance of 10% or more and 40% or less of the length of the first straight line from the midpoint of the first straight line in the first direction in at least a part of the plurality of reflection portions.
  • 4 is an embossed sheet according to appendix 4.
  • Appendix 6 The embossing sheet according to appendix 4 or appendix 5, wherein the intersection is at a position shifted in the second direction from the midpoint of the second straight line in at least a part of the plurality of reflection portions.
  • the intersection point is a position that is shifted by a distance of 10% or more and 40% or less of the length of the second straight line from the midpoint of the second straight line in the second direction in at least a part of the plurality of reflection portions.
  • the embossed sheet according to appendix 6. (Appendix 8) The third passing through both ends of the first intermediate portion which is the intermediate portion on the one end side of the first bending portion having the larger distance from the vertex in the first direction to the intersection among the pair of first bending portions. Both ends of the second intermediate portion that is the intermediate portion on the other end side of the first curved portion of the straight line and the one of the pair of first curved portions that has a larger distance from the vertex in the first direction to the intersection.
  • Appendix 9 The embossed sheet according to any one of supplementary notes 1 to 8, wherein at least a part of the reflective surfaces of the plurality of reflective portions is symmetrical in the predetermined direction in plan view.
  • Appendix 10 A decorative sheet comprising the embossed sheet according to any one of supplementary notes 1 to 9.
  • FIG. 26 is a cross-sectional view showing a decorative sheet designed by applying the decorative sheet design method according to the first embodiment of the third invention (see FIG. 17 for a diagram viewed from above).
  • the decorative sheet 305 has a luster that simulates natural wood, and is used as a surface material for interiors and furniture by being bonded to plywood or the like.
  • FIG. 17 shows, as an example, natural wood having a wood grain pattern along the Y-axis direction in the drawing.
  • the wood grain pattern has a shiny luster. That is, when light enters in the Y-axis direction, gloss appears in a direction different from the regular reflection direction. And if the incident angle or observation position of light is moved, the location where shine appears will move.
  • the decorative sheet 305 includes a sheet-like lower layer base material 306, a wood pattern printed surface 304 provided on the lower layer base material 306, and a printing surface 304 between the lower layer base material 306. And an embossed sheet 301 disposed on the lower layer base material 306 so as to sandwich it. Note that the decorative sheet 305 only needs to include at least the embossed sheet 301 portion.
  • the material of the lower layer base material 306 is not particularly limited, but for example, a thermoplastic resin can be used.
  • suitable materials for the lower layer substrate 306 include random PP (polypropylene), HDPE (high density polyethylene), and the like, and organic or inorganic pigments may be added to these thermoplastic resins.
  • an urethane resin binder to which an organic or inorganic pigment is added can be preferably used, but is not limited thereto.
  • An adhesive layer (not shown) may be added to the interface (printing surface 304) between the lower layer base material 306 and the embossed sheet 301 of the decorative sheet 305.
  • the adhesive layer for example, a polypropylene-based adhesive resin or the like can be used.
  • the adhesive layer is not limited to this, and is appropriately selected in consideration of the adhesion between the lower layer base material 306 of the decorative sheet 305 and the embossed sheet 301. Can do.
  • FIG. 27 is a diagram illustrating an example of the shape of the reflecting portion.
  • the embossed sheet 301 includes a sheet-like base material 303 having translucency, and a plurality of reflecting portions 302 provided on one surface 331 of the base material 303. Configured.
  • FIG. 27B and a sectional view perpendicular to the Y-axis direction
  • Each of the reflecting portions 302 is two-dimensionally arranged on one surface 331 of the base material 303 with a space therebetween (see FIG. 31).
  • each of the plurality of reflecting portions 302 includes a reflecting main surface 321 and connection surfaces 322 and 323 provided between the reflecting main surface 321 and the base material 303. And have.
  • the reflective main surface 321 is linear in a cross section perpendicular to the X-axis direction, and reflects incident light.
  • Each of the reflecting portions 302 is formed such that a straight line of the reflecting main surface 321 in a cross section perpendicular to the X-axis direction is inclined with respect to the one surface 331. Note that at least a part of each of the reflecting portions 302 may be formed such that the reflecting main surface 321 in a cross section perpendicular to the X-axis direction is parallel to one surface 331 (so as not to have an inclination).
  • a reflecting portion 302 having a reflecting main surface 321 inclined at an angle ⁇ 3 so as to approach one surface 331 toward the positive Y-axis direction Is provided symmetrically with respect to the ZX plane and has both a reflecting portion 302 having a reflecting main surface 321 inclined at an angle ⁇ 3 so as to approach one surface 331 in the negative Y-axis direction. Accordingly, when light is incident in a direction intersecting the X-axis direction, when the position for observing the decorative sheet 305 is moved, the position that was bright at one observation position becomes the dark portion at the other observation position. And the position which was a dark part in one observation position turns into a bright part in another observation position.
  • connection surfaces 322 and 323 have a circular arc shape in the cross section perpendicular to the X-axis direction, and the reflection main surface 321 and one surface 331 of the base material 303 are connected. And connect.
  • each reflecting portion 302 does not necessarily have both the connection surfaces 322 and 323.
  • each of the reflecting portions 302 does not have the connection surface 323 but is formed so that the end portion in the positive Y-axis direction of the reflecting main surface 321 in FIG. 27B is directly connected to one surface 331. May be.
  • the entire reflecting portion 302 has a curved line shape in a cross section perpendicular to the Y-axis direction.
  • the reflection unit 302 can scatter-reflect light incident on the embossed sheet 301 from the Y-axis direction.
  • the reflecting portion 302 is shown as a convex shape, but may be a concave shape.
  • the width of the cross section perpendicular to the X-axis direction and the cross section perpendicular to the Y-axis direction is desirably 10 ⁇ m or more, more preferably 50 ⁇ m or more. This is because if it is less than 10 ⁇ m, it will shine in iridescent due to the influence of diffracted light.
  • the widths of the cross section perpendicular to the X-axis direction and the cross-section perpendicular to the Y-axis direction are spaced from each other in a region corresponding to each pixel whose size has been changed, as will be described later.
  • the upper limit is the size that can be two-dimensionally arranged.
  • FIG. 28 is a flowchart showing a decorative sheet design method.
  • FIG. 29 is a diagram illustrating an example of an image obtained by converting the pixel size and the number of gradations.
  • FIG. 30 is a diagram showing a state in which the image of FIG. 29 is made to correspond to one surface of the substrate.
  • FIG. 31 is a diagram showing an example of the arrangement of the reflecting portions according to the first embodiment of the third invention.
  • step S1 of the flowchart of FIG. 28 an image of natural wood (see FIG. 17) that is intended to reproduce the shiny luster that appears in the wood grain pattern is acquired (acquisition process).
  • Such an image is acquired as image data composed of a plurality of pixels, for example, by a scanner, a digital camera, or the like.
  • the process proceeds to step S2.
  • step S2 the image acquired in step S1 is grayscaled so as to have the first number of gradations (grayscale process).
  • the first number of gradations is 256 gradations with the brightest part in the image being 255 and the darkest part being 0, but the first gradation number is not limited to 256 gradations and is different. It may be the number of gradations.
  • the process proceeds to step S3.
  • step S3 the pixel size of the image scaled in gray in step S2 is converted (conversion step). Specifically, the image converted to gray scale in step S2 is converted so that the size of each pixel is 50 ⁇ m or more and 5 mm or less, more preferably 1 mm or less. At this time, for example, the gradation of each pixel after the size conversion may be an average value of the gradation of the pixel located in the area of the pixel before the size conversion.
  • the process proceeds to step S4.
  • step S4 the number of gradations of the image obtained by converting the pixel size in step S3 is converted (conversion step). Specifically, the image in which the pixel size is converted in step S3 is converted so as to have a second gradation number that is smaller than the first gradation number and 2 or more and 30 or less. In the present embodiment, the second gradation number is four gradations.
  • an image in which the pixel size is converted and the number of gradations is converted is represented as an image G, and each pixel constituting the image G is represented as a pixel P.
  • step S5 when the number of gradations of the image is converted, the process proceeds to step S5.
  • step S5 as shown in FIG. 30, the image G in which the number of gradations is converted in step S4 is made to correspond to one surface 331 of the base material 303 (arrangement step).
  • the process proceeds to step S6.
  • step S6 in the region corresponding to each pixel P of one surface 331 of the base material 303, the reflecting portion 302 is arranged according to the gradation of each pixel P (arranging step). . Specifically, the reflecting portions 302 are arranged at positions that are two-dimensionally arranged with a space therebetween.
  • the entire region shown in FIG. 31 is a region A surrounded by a broken line in FIG.
  • the pixel P in order to reproduce the difference in brightness of each pixel P when observed at a predetermined observation position, the pixel P is arranged in a region corresponding to each pixel P according to the gradation of each pixel P.
  • the number of reflecting parts 302 and the direction of the reflecting parts 302 in the Y-axis direction are changed.
  • two reflecting portions 302 that are inclined so as to approach one surface 331 in the positive direction of the Y axis are arranged.
  • two reflecting portions 302 that are inclined so as to approach one surface 331 in the negative Y-axis direction are arranged, and in the region A3 corresponding to the other pixel P, Y Four reflecting portions 302 that are inclined so as to approach one surface 331 toward the negative axis direction are arranged. If the reflective part 302 is arrange
  • FIG. 32 is a diagram illustrating an example of a design system for executing a decorative sheet design method.
  • the design system 340 includes an image acquisition unit 341 and a processing unit 342.
  • the processing unit 342 includes a gray scale conversion unit 343, a pixel size conversion unit 344, a gradation number conversion unit 345, a pixel correspondence unit 346, and a reflection unit arrangement unit 347.
  • the image acquisition unit 341 is, for example, a scanner or a digital camera.
  • the image acquisition unit 341 acquires an image of natural wood (see FIG. 17) that is intended to reproduce the shiny luster that appears in the wood grain pattern as image data composed of a plurality of pixels.
  • the image acquisition unit 341 transmits the acquired image data to the gray scale conversion unit 343 of the processing unit 342.
  • the gray scale unit 343 converts the image data to gray scale so as to have the first gradation number.
  • the gray scale unit 343 outputs the gray scale image data to the pixel size conversion unit 344.
  • the pixel size conversion unit 344 converts the pixel size of the grayscale image data. Specifically, the grayscale image data is converted so that each pixel has a size of 50 ⁇ m or more and 5 mm or less, more preferably 1 mm or less. At this time, for example, the gradation of each pixel after the size conversion may be an average value of the gradation of the pixel located in the area of the pixel before the size conversion.
  • the pixel size conversion unit 344 outputs the image data in which the pixel size is converted to the gradation number conversion unit 345.
  • the gradation number conversion unit 345 converts the gradation number of the image data obtained by converting the pixel size. Specifically, the image data obtained by converting the pixel size is converted so as to have a second number of gradations that is smaller than the first number of gradations and 2 or more and 30 or less. In the present embodiment, the second gradation number is four gradations.
  • the gradation number conversion unit 345 outputs the image data with the converted gradation number to the pixel correspondence unit 346.
  • the pixel correspondence unit 346 associates the image data obtained by converting the number of gradations with one surface 331 of the base material 303.
  • the pixel correspondence unit 346 associates the image G as the image data with the one surface 331 of the base material 303
  • the pixel correspondence unit 346 sends the image data and information about the region of the one surface associated with the image data to the reflection unit arrangement unit 347. Output.
  • the reflection unit arrangement unit 347 arranges the reflection unit 302 in an area corresponding to each pixel P of the one surface 331 of the base material 303 according to the gradation of each pixel P.
  • the reflecting portions 302 are arranged at positions that are two-dimensionally arranged with a space therebetween.
  • the pixel P in order to reproduce the difference in brightness of each pixel P when observed at a predetermined observation position, the pixel P is arranged in a region corresponding to each pixel P according to the gradation of each pixel P.
  • the number of reflecting parts 302 and the direction of the reflecting parts 302 in the Y-axis direction are changed. In this manner, the design method of the decorative sheet 305 can be executed by the design system 340.
  • Such a design system 340 can be configured by connecting a scanner or the like to a computer equipped with hardware such as a CPU, a memory, and a display. Each process described above can be executed by loading computer software (program) that performs the above-described image data conversion process and image data handling process onto hardware such as a CPU and a memory.
  • computer software program
  • each reflective main surface 321 of the reflective portion 302 is in a cross section perpendicular to the X-axis direction with respect to one surface 331 of the base material 303.
  • the light reflected by the reflection main surface 321 is emitted at an angle different from the regular reflection angle on the one surface 331 of the base material 303.
  • the acquired natural tree image is converted so that each pixel has a size of 50 ⁇ m or more and 5 mm or less, more preferably 1 mm or less, and is made to correspond to one surface 331 of the base material 303.
  • region corresponding to each pixel P of the one side 331 of the base material 303 can be enlarged, it becomes possible to arrange
  • the acquired natural tree image is converted so that the number of gradations of each pixel is 2 or more and 30 or less.
  • the number of gradations of each pixel P does not increase too much, even when the arrangement of the reflection part 302 is changed according to the gradation of each pixel P, the number of patterns of the arrangement of the reflection part 302 is large. It can suppress becoming over. For this reason, it is possible to easily dispose the reflector 302 according to the gradation of each pixel P.
  • the configuration of the decorative sheet 305 that can reproduce shiny luster can be applied to an actual natural wood grain pattern. Therefore, it is possible to reproduce the shiny luster that appears in the wood grain pattern of natural wood.
  • the design method of the decorative sheet 305 after the acquisition step and before the conversion step, the image is displayed on the first floor which is smaller than the gradation number of the image acquired in the acquisition step and larger than the second gradation number.
  • the method further includes a gray scale process for gray scale so as to have a logarithm. For this reason, the effect of the design method of the said decorative sheet 305 can be implement
  • the reflecting portions 302 are arranged at positions that are two-dimensionally arranged with a space therebetween. For this reason, it is easy to adjust the number of arrangements (arrangement density) of the reflective portions 302, and visual unevenness is less likely to occur.
  • the number of the reflective portions 302 arranged in the region is changed in the arrangement process according to the gradation of each pixel P. For this reason, when the incident angle of light or the observation position is moved, the portion where the light is radiated can be quickly moved, so that the design can be improved.
  • Step S1 to S5 are the same as those in the first embodiment, and Step S6 is different from the first embodiment.
  • Step S6 is different from the first embodiment.
  • the difference will be mainly described, and the description of the same configuration as that of the first embodiment will be omitted.
  • FIG. 33 is a diagram illustrating an example of the arrangement of the reflecting portions according to the second embodiment.
  • the reflecting portion 302 is arranged in a region corresponding to each pixel P on one surface 331 of the base material 303 in accordance with the gradation of each pixel P (arranging step). .
  • the reflecting portions 302 are arranged at positions that are two-dimensionally arranged with a space therebetween.
  • the entire region shown in FIG. 33 is a region A surrounded by a broken line in FIG.
  • the pixel P in order to reproduce the difference in brightness of each pixel P when observed at a predetermined observation position, the pixel P is arranged in a region corresponding to each pixel P according to the gradation of each pixel P.
  • the inclination of the reflecting main surface 321 of the reflecting portion 302 and the orientation of the reflecting portion 302 in the Y-axis direction are changed.
  • two reflecting portions 302 that are inclined at an angle ⁇ 3 so as to approach one surface 331 in the positive Y-axis direction are arranged.
  • two reflecting portions 302 that are inclined at an angle ⁇ 3 so as to approach the one surface 331 in the negative Y-axis direction are arranged, and further correspond to other pixels P.
  • two reflecting portions 302a that are inclined at an angle different from the angle ⁇ 3 are disposed so as to approach one surface 331 in the negative Y-axis direction.
  • the design method of the decorative sheet 305 according to the third embodiment is mainly different from the design method of the decorative sheet 5 according to the above-described first embodiment in the arrangement of the reflective portion 302 on the base material 303 in the arrangement step. . That is, in the flowchart shown in FIG. 28, Steps S1 to S5 are the same as those in the first embodiment, and Step S6 is different from the first embodiment. Hereinafter, the difference will be mainly described, and the description of the same configuration as that of the first embodiment will be omitted.
  • FIG. 34 is a diagram illustrating an example of the arrangement of the reflecting portions according to the third embodiment.
  • step S6 as shown in FIG. 34, in the region corresponding to each pixel P of one surface 331 of the base material 303, the reflecting portion 302 is arranged according to the gradation of each pixel P (arranging step). . Specifically, the reflecting portions 302 are arranged at positions that are two-dimensionally arranged with a space therebetween.
  • the entire region shown in FIG. 34 is a region A surrounded by a broken line in FIG.
  • the pixel P in order to reproduce the difference in brightness of each pixel P when observed at a predetermined observation position, the pixel P is arranged in a region corresponding to each pixel P according to the gradation of each pixel P.
  • the number of reflecting parts 302, the inclination of the reflecting main surface 321 of the reflecting part 302, and the orientation of the reflecting part 302 in the Y-axis direction are changed.
  • FIG. 34 in the region A1 corresponding to one pixel P, two reflecting portions 2 that are inclined at an angle ⁇ 3 so as to approach one surface 331 in the positive Y-axis direction are arranged.
  • two reflecting portions 302 that are inclined at an angle ⁇ 3 so as to approach the one surface 331 in the negative Y-axis direction are arranged, and further correspond to other pixels P.
  • two reflecting portions 2 that are inclined at an angle ⁇ 3 so as to approach one surface 331 in the negative Y-axis direction are disposed, and two reflecting portions 2a that are inclined at an angle different from the angle ⁇ are disposed. It is arranged.
  • the design method of the decorative sheet 305 according to the third embodiment of the third invention in the arrangement step, the number of reflection units 302 arranged in the region according to the gradation of each pixel P, The inclination of the reflection main surface 321 of the reflection unit 302 and the direction of the reflection unit 32 in the Y-axis direction are changed. For this reason, when the incident angle of light or the observation position is moved, an area where the place where the light is rapidly generated can be freely combined with an area where the place where the light is gradually generated can be moved. be able to. Therefore, the designability can be improved.
  • the reflective main surface 321 has a linear shape in a cross section perpendicular to the X-axis direction.
  • the reflecting main surface 321 may have a curved line shape in a cross section perpendicular to the X-axis direction.
  • FIG. 35 is a diagram illustrating an example of the shape of the reflecting portion according to the first modification. As shown in FIG.
  • the reflecting portion 302b includes a reflective main surface 21b curved with a radius R1, a connection surface 22 curved with a radius r2 smaller than R1, a connection surface 323 curved with a radius r3 smaller than R1, It consists of
  • the sizes of the radii r2 and r3 may be the same or different.
  • each of the reflecting portions 302b is formed such that a tangent to the curved line portion at the center position of the reflecting main surface 321b in the cross section perpendicular to the X-axis direction is inclined with respect to the one surface 331. .
  • An angle formed by this tangent and one surface 331 is defined as an angle ⁇ 3.
  • at least a part of each of the reflecting portions 302b is formed so that the tangent at the center position of the reflecting main surface 321b in the cross section perpendicular to the X-axis direction is parallel to the one surface 331 (so as not to have an inclination). May be.
  • connection surface 322c is provided on one end side of the reflection main surface 321c, and the connection surface 323c that is a minute arc is reflected. It is different from the above embodiment in that it is provided on the other end side of the main surface 321c.
  • FIG. 36 is a diagram illustrating an example of the shape of the reflecting portion according to the second modification. As shown in FIG.
  • the reflection main surface 321c is connected to the connection surface 322c through a portion curved at a minute radius r34 on one end side in the cross section perpendicular to the X-axis direction, and on the other end side. And connected to one surface 331 of the base material 303 via a connection surface 323c having a minute radius r35.
  • the connection surface 323c is substantially omitted while maintaining the function of the reflective main surface 321c that reproduces the light, and light incident on the connection surface 323c can be reduced.
  • the connection surface 322c is connected to one surface 331 of the base material 303 via a portion curved with a minute radius r36. Note that the shape of the reflective main surface 321c along the cross section perpendicular to the Y-axis direction is the same as that of the reflective main surface 321 of the above embodiment.
  • FIG. 37 is a diagram illustrating an example of the shape of the reflecting portion according to the third modification.
  • the reflecting portion 302d is provided with connecting surfaces 324 and 325 at both ends of the reflecting main surface 321d in the X-axis direction, and these connecting surfaces 324 and 325 are connected to one surface 331. It has become so.
  • FIG. 37 is a diagram illustrating an example of the shape of the reflecting portion according to the third modification.
  • the reflecting portion 302d is provided with connecting surfaces 324 and 325 at both ends of the reflecting main surface 321d in the X-axis direction, and these connecting surfaces 324 and 325 are connected to one surface 331. It has become so.
  • connection surfaces 324 and 325 are straight lines, but may be curved lines.
  • the reflecting main surface 321d and the connecting surfaces 322d and 323d in the cross section perpendicular to the X-axis direction correspond to the reflecting main surface 321c and the connecting surfaces 322c and 323c of the reflecting portion 302c according to the second modification, and are substantially the same. Shape.
  • connection surfaces 324e and 325e are provided at both ends of the reflective main surface 321e, and the reflective main surface 321e positioned therebetween is provided.
  • the second modification is different from the second modification in that it is linear, and the other configuration is the same as the second modification.
  • FIG. 38 is a diagram illustrating an example of the shape of the reflecting portion according to the fourth modification. As shown in FIG.
  • the reflecting portion 302e is provided with connecting surfaces 324e and 325e having gentle curves at both ends of the linear reflecting main surface 321e in the X-axis direction, and these connecting surfaces 324e and 325e. Is connected to one surface 331.
  • these connection surfaces 324e and 325e are curved lines, but may be linear.
  • the reflecting main surface 321e and the connecting surfaces 322e and 323e in the cross section perpendicular to the X-axis direction correspond to the reflecting main surface 321c and the connecting surfaces 322c and 323c of the reflecting portion 302c according to the second modification, and are substantially the same. Shape.
  • FIG. 39B is a diagram illustrating an example of the shape of the reflecting portion according to the fifth modification.
  • the reflecting portion 302f is provided with connecting surfaces 322c and 323f having gentle curves at both ends of the reflecting main surface 321c in the Y-axis direction, and the R portion of the connecting surface 323f. Is inverted and connected to one surface 331. Since the connection surface 323f has such an inverted R shape that draws such a skirt, when the embossed sheet 301 is formed, the flow of the resin, the peeling of the plate, etc. can be performed smoothly, and the moldability can be improved. .
  • the processing unit 342 of the design system 340 includes the gray scale unit 343, and the design method of the decorative sheet 305 includes a gray scale process.
  • the processing unit 342 of the design system 340 may not include the gray scale conversion unit 343, and the design method of the decorative sheet 305 may not include the gray scale conversion process.
  • step S3 of converting the pixel size of the grayscaled image is executed first, and then the pixel size is converted.
  • the process of step S4 for converting the number of gradations is executed.
  • the process of step S4 may be performed first, and then the process of step S3 may be performed, or the processes of step S3 and step S4 may be performed in parallel.
  • the reflection part in the position where the reflection part is not arrange
  • the reflection in the cross section perpendicular to the X-axis direction at the position where the reflection part is not arranged in the above embodiment (the position where the reflection part should be arranged when the pixel is the brightest part or the darkest part).
  • a reflecting portion in which the main surface 321 is formed in parallel with the one surface 331 (so as not to have an inclination) may be disposed. In this case, since it is possible to suppress a difference in the appearance of the gloss between the position where the reflecting portion is disposed and the position where the reflecting portion is not disposed, it is possible to improve the design. .
  • Appendix 1 A method for designing a decorative sheet comprising a sheet-like base material that reproduces luster imitating natural wood, An acquisition step of acquiring an image of the natural tree comprising a plurality of pixels; After the acquisition step, the image is converted so that each pixel has a size of 50 ⁇ m or more and 5 mm or less, and is smaller than the number of gradations of the image acquired in the acquisition step and 2 or more and 30 or less.
  • a conversion step of converting to have a certain second gradation number After the conversion step, the image converted to one surface of the base material is made to correspond, and in the region corresponding to each of the pixels on the one surface of the base material, according to the gradation of each pixel.
  • a disposing step of disposing a reflecting portion having a reflecting main surface that reflects incident light The reflective main surface has a straight or curved line shape in a cross section perpendicular to a predetermined direction along the one surface, At least a part of each of the reflecting portions is formed such that a tangent line or a straight line with respect to a curved line portion at a central position of the reflecting main surface in the cross section is inclined with respect to the one surface.
  • Appendix 4 The method for designing a decorative sheet according to any one of appendices 1 to 3, wherein, in the arranging step, the number of the reflection portions arranged in the region is changed according to the gradation of each pixel.
  • Appendix 5 The design of the decorative sheet according to any one of appendix 1 to appendix 4, wherein in the arranging step, the inclination of the reflecting main surface of the reflecting portion arranged in the region is changed according to the gradation of each pixel.
  • the present invention can be applied in the design direction of a decorative sheet, an embossed sheet, a decorative board, or a decorative sheet that reproduces the shiny luster that appears in the wood grain pattern of natural wood.

Abstract

L'invention concerne une feuille décorative (10) qui est pourvue : d'une feuille de base (11) ; d'une couche d'impression (12) agencée sur la surface supérieure de la feuille de base (11) ; d'une couche de résine transparente (13) qui est disposée sur la surface supérieure de la couche d'impression (12) ; d'une couche de protection (14) qui est disposée sur la surface supérieure de la couche de résine transparente (13). Cette feuille décorative (10) est conçue de sorte que la couche de résine transparente (13) possède une pluralité de parties réfléchissantes (20), dont chacune comprend une partie saillante qui réfléchit la lumière incidente sur la feuille décorative (10) dans une direction qui est différente de la direction spéculaire pour la surface de feuille décorative ; la pluralité de parties réfléchissantes (20) est recouverte par la couche de protection (14).
PCT/JP2017/020673 2016-06-07 2017-06-02 Feuille et panneau décoratifs WO2017213053A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2016113818A JP2017217825A (ja) 2016-06-07 2016-06-07 エンボスシート及び化粧シート
JP2016113816A JP2017217824A (ja) 2016-06-07 2016-06-07 化粧シート及び化粧板
JP2016-113820 2016-06-07
JP2016-113818 2016-06-07
JP2016-113816 2016-06-07
JP2016113820A JP2017217826A (ja) 2016-06-07 2016-06-07 化粧シートの設計方法

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WO2017213053A1 true WO2017213053A1 (fr) 2017-12-14

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01166958A (ja) * 1987-12-23 1989-06-30 Dainippon Printing Co Ltd 化粧シート
JPH054310A (ja) * 1991-06-05 1993-01-14 Dainippon Printing Co Ltd 木目調化粧シート
JPH0789000A (ja) * 1993-09-20 1995-04-04 Dainippon Printing Co Ltd 内部凹凸模様をもつ化粧シート
JPH08118578A (ja) * 1994-10-19 1996-05-14 Dainippon Printing Co Ltd 化粧シート及びその製造方法
JP2006187936A (ja) * 2005-01-06 2006-07-20 Toppan Printing Co Ltd 化粧シート
JP2010500936A (ja) * 2006-08-15 2010-01-14 パノラム・インダストリーズ・インターナショナル・インコーポレイテッド 多色光輝性材料を組み込む化粧板
JP2011230518A (ja) * 2011-08-12 2011-11-17 Dainippon Printing Co Ltd 壁装用化粧シート
JP2013078939A (ja) * 2011-09-22 2013-05-02 Dainippon Printing Co Ltd 積層シート
JP2015187378A (ja) * 2014-03-10 2015-10-29 大日本印刷株式会社 シート及び化粧板

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01166958A (ja) * 1987-12-23 1989-06-30 Dainippon Printing Co Ltd 化粧シート
JPH054310A (ja) * 1991-06-05 1993-01-14 Dainippon Printing Co Ltd 木目調化粧シート
JPH0789000A (ja) * 1993-09-20 1995-04-04 Dainippon Printing Co Ltd 内部凹凸模様をもつ化粧シート
JPH08118578A (ja) * 1994-10-19 1996-05-14 Dainippon Printing Co Ltd 化粧シート及びその製造方法
JP2006187936A (ja) * 2005-01-06 2006-07-20 Toppan Printing Co Ltd 化粧シート
JP2010500936A (ja) * 2006-08-15 2010-01-14 パノラム・インダストリーズ・インターナショナル・インコーポレイテッド 多色光輝性材料を組み込む化粧板
JP2011230518A (ja) * 2011-08-12 2011-11-17 Dainippon Printing Co Ltd 壁装用化粧シート
JP2013078939A (ja) * 2011-09-22 2013-05-02 Dainippon Printing Co Ltd 積層シート
JP2015187378A (ja) * 2014-03-10 2015-10-29 大日本印刷株式会社 シート及び化粧板

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