JP2000038000A - Embossed decoration material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an embossed decoration material giving a visual effect where the depth of recessed part molded by embossing work is felt deeper than the actual depth in the surface of a base material. SOLUTION: The bottom surface of a plurality of recessed parts F molded by embossing work on the surface of a base material is divided in a plurality of regions R1, R2...Rn expressing at least predetermined glosses of two kinds or more being diverse with each other by changing fine uneven configurations, and glosses are changed discontinuously at the boundary of the regions being adjacent to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embossed decorative material capable of using a thin embossed base sheet.

[0002]

2. Description of the Related Art An embossed cosmetic material having a number of recesses formed by embossing a surface of a base material such as a synthetic resin sheet to enhance texture, luxury, and design is used for furniture,
It is often used for cabinet surface materials of home appliances. The embossed pattern, that is, the concavo-convex pattern is a wooden pattern,
The pattern includes a stone pattern, a fiber pattern, an abstract pattern, and the like. A typical example is a wood grain conduit cross-sectional pattern of natural wood.
The embossed decorative material 30 for the conventional wood grain conduit cross-sectional pattern has a plan view on the base material surface as shown in FIG.
A portion corresponding to a wood grain conduit cross-sectional pattern P shown in FIG. 1 (actually a complicated deformed elliptical shape as shown in FIG. 1, but for simplicity of description here is simplified and shown as an elliptical shape) is shown in FIG. As shown in the cross-sectional view of FIG. 7 (b), a number of recesses F ′ obtained by embossing in a groove shape are formed, and as shown in the perspective view of FIG. Is
In particular, shaping of fine irregularities and the like is not performed. In this method, when trying to reproduce the depth of the wood grain conduit groove of a natural wood board, the depth of the recessed portion F 'becomes considerably deep, depending on the wood grain pattern. Use of a base sheet is required. Generally, the depth of a conventional embossing plate used for manufacturing embossed decorative materials is 100 to 1 to reproduce the appearance of a natural wood grain conduit groove.
50 μm is required. Therefore, the thickness of the substrate sheet (generally a transparent shaping sheet) used at the time of embossing needs to exceed at least this range. Further, in order to realistically reproduce the depth change of the wood grain conduit groove, depending on the wood grain pattern, the depth of the recessed portion is 150 to 180.
μm, and in some cases, it is necessary to use a base sheet having a thickness exceeding this range. On the other hand, in the embossed base sheet having a limited thickness, the natural wood grain conduit groove can be shown deeper than its actual depth and realistically reproduced. A method of filling a high concentration ink such as black or brown is disclosed. Furthermore, in recent years, so-called doubling embossing (a method of laminating a transparent top substrate sheet on a colored base substrate sheet by heat fusion and embossing the transparent top substrate sheet at the same time) has been frequently used. A manufacturing method has been implemented in which a transparent top substrate sheet to be used is melt-extruded and molded, and at the same time, an embossing process is performed using a cooling roller as an embossing plate.

[0003]

According to the wiping, it is possible to reproduce the depth and rough feeling of the wood grain conduit section,
Also, by using a low-gloss wiping ink to be used, the gloss of the recessed portion can be made lower than that of the non-depressed portion, but all the recessed portions have substantially the same gloss, and in terms of gloss, There is a problem that the design must be monotonous. In addition, wiping has a problem that it requires ink cost and requires more steps because of an increase in the number of steps, leading to an increase in manufacturing cost and a delay in delivery.
On the other hand, if it is attempted to reproduce the conduit groove having a sufficient depth as described above without using wiping, using an embossed plate having a deep conduit groove, and using a base sheet having a thickness equal to or greater than the depth of the embossed concave portion, The thickness of the material sheet is required to be 150 μm or more. In this case, in addition to increasing the material cost, when performing a bending process such as a wrapping process and a V-cut process on the decorative sheet, the workability thereof is reduced. This causes inconvenience. In particular, a thickness of 80 μm or less is desired for a base material sheet to be embossed in-line with the melt extrusion molding in order to reduce the efficiency and material cost during extrusion molding. Therefore, the depth of the embossed plate is also 80μ.
m or less, but simply lowering the plate depth
There is a problem that the design effect by embossing is weakened. This tendency is particularly remarkable in the case of a wood grain conduit pattern such as oak. The present invention has been made in view of the above-described problems, and uses a base sheet that is thinner than in the past, allows the user to visually sense the depth even when embossing at a relatively shallow depth, and furthermore, is three-dimensional. The purpose of the present invention is to provide an embossed decorative material that enables a high-quality design expression with a texture.

[0004]

The embossed decorative material according to the present invention, which has been made to solve the above-mentioned problems, comprises an embossed decorative material having a plurality of concave portions on the surface of a base material, wherein the bottom surface of the concave portion is fine. By changing the uneven shape,
At least two or more types of regions each having a predetermined gloss different from each other are defined, and gloss is different at boundaries between adjacent regions.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION An embossed decorative material is a sheet or plate having an uneven pattern formed on its surface by embossing or the like. As the material of the base material, usually, polyethylene, polypropylene, polyolefin resin such as olefin thermoplastic elastomer, polyvinyl chloride, acrylic resin, thermoplastic polyester resin, thermoplastic urethane resin, ABS, thermoplastic resin such as polystyrene, Thermosetting resins such as melamine resins, unsaturated (thermosetting) polyester resins, two-pack curing (thermosetting) urethane resins, radical polymerizable unsaturated acrylates, and cationic polymerizable epoxy resins are used for ionizing radiation (ultraviolet rays, electron beams). Etc.), and an ionizing radiation-curable resin or the like cross-linked is used. In addition, as applications, interior materials of buildings such as walls, floors, ceilings, doors, window frames, door frames, surface materials of fittings such as handrails, surface materials of housings of home appliances such as television receivers, Surface materials for furniture such as chests,
A surface material of a container such as a box, an interior material of a vehicle or the like, an interior material of a marine vessel, and the like. The embossed pattern targeted by the present invention has a woodgrain pattern reproducing a natural wood board having a woodgrain conduit cross-sectional pattern,
Includes surface irregularities on travertine marble boards, joint grooves on tiled and brickwork surfaces, and various patterns consisting of irregular, independent recesses. On the other hand, since the present invention can be effectively applied, the following description will be made mainly on the case of a wood grain pattern having a wood grain pipe cross-sectional pattern (hereinafter, referred to as a pipe pattern).

FIG. 1 is an example of a conduit pattern extracted from a natural wood pattern. As shown in FIG. 1, each conduit pattern P looks irregular at first glance, but is a modification of a long elliptical shape extending in substantially the same direction. Will be shown with a pattern model of

FIG. 2 is an explanatory view of a recess for a conduit pattern of an embossed decorative material according to the present invention. FIG.
FIG. 2A is a plan view of the recess F, and FIG.
2A is a cross-sectional view taken along the line xx, and FIG. Individual depressions F formed on the surface of the base material (embossed base sheet 4) of the embossed decorative material 20 according to the present invention.
As shown in FIGS. 2 (a) and (1), the bottom surface has a gloss on both sides thereof via a boundary line C1 passing through the center of the recess F in the longitudinal direction (y-axis direction) of the recess F. Are apparently different, and regions R1 and R2 are defined. Further, as shown in FIGS. 2A and 2B, the concave portion F is divided into three in the x-axis direction at boundary lines C2 and C3 in the longitudinal direction (y-axis direction) of the concave portion F. Although not shown, a plurality of regions R1, R2 ---- Rn may be divided into stripes so as to form a stripe. And these regions R1,
R2 ---- Rn is formed with fine irregularities each having a unique surface roughness, and each region on both sides of the boundary has a different gloss. The pattern is
This is shown more clearly in the sectional view of FIG. 2B and the perspective view of FIG. 2C. The number of partitions n of this region R is
It may be appropriately determined according to the wood grain pattern having a wood grain conduit groove to be reproduced, but about 2 to about 4 is preferable from a practical viewpoint.

FIG. 3 is a perspective view of the embossed decorative material according to the present invention, which is tiled and has a concave portion intended for a joint groove of a brickwork pattern. As shown in FIG. 3, a concave portion F corresponding to the joint has a boundary line C in the longitudinal direction (y-axis direction) of the concave portion F.
1, R2 divided in the x-axis direction by C2
2, R3 are partitioned and formed, each having a fine irregular shape having a unique surface roughness, and each having different gloss.

FIG. 4 is a perspective view of a travertine marble pattern of the embossed decorative material according to the present invention, which is intended for an irregular, isolated depression. The recessed portion F of the embossed decorative material according to the present invention, which reproduces an irregular, isolated depression in the travertine pattern, is divided into a central region R3 and deformed annular regions R1 and R2 surrounding the central region R3. In each of the regions, a fine uneven shape having a unique surface roughness is formed, and each region is given a different gloss.

The embossed decorative material 20 according to the present invention is shown in FIG.
As shown in FIGS. 4A to 4C, different irregularities having different light diffusing properties are formed in the respective regions R1, R2,. Is given to emphasize the apparent depth of the concave portion F. As shown in FIG. 2 (a), the emphasis may be made by gradually increasing or decreasing the shape of the concavo-convex shape from one side in the width direction of the recess F to the other side (in the left-right direction in the figure). 2A, for example, it can be visually deeper toward the right in FIG. 2A. Or,
As shown in FIG. 3, in the case of the concave portion F targeting the joint groove, both end regions R <b> 1 in the width direction (x-axis direction) of the concave portion F.
By making the uneven shape of R3 fine and roughening the uneven shape of the central region R2, it is possible to visually show the center part deeply. Further, in the case of the concave portion F which targets the isolated concave portion as shown in FIG. 4, the concave and convex shape gradually becomes coarser toward the center portion, and the visual appearance becomes deeper toward the central portion. Note that these regions R1, R
2--, adjacent regions of Rn have different gloss (roughness of fine unevenness) from each other, and the manner of the change is as shown in FIG. 2 to FIG. May be changed discontinuously at the boundary, or may be changed continuously (not shown).

As described above, in order to form a unique fine unevenness in each of the regions R1, R2-Rn forming the bottom surface of the concave portion F by embossing, the plate surface of the embossing plate must be formed by embossing. It is necessary to form a fine reverse uneven shape by photo-etching (consisting of patterning and etching) on the convex portion for shaping the concave portion F and the portion corresponding to the region in the top surface of the convex portion. In addition, a mask pattern MP for performing patterning is required. The mask pattern MP includes a binarized image of the conduit pattern P and a region R of each of the recesses F inside the conduit pattern P.
1, a region r specified to correspond to R2 ---- Rn
1, r2 --- rn, which are respectively assigned to the fine uneven pattern p1 and p2 --- pn image.
The simplest case of the mask pattern MP will be described with reference to FIG. 6. The mask pattern MP has the same shape as the binarized conduit pattern P.
1 (the lower half of the elliptical shape is omitted for the sake of drawing) and the regions r on both sides of the central boundary C in the longitudinal direction.
The mask pattern MP2 composed of offset printing halftone fine uneven patterns p1 and p2 having the same arrangement pitch but different in area% for 1 and r2.
And is constituted by. In general, these two types of fine uneven patterns p1 and p2 can be easily obtained by appropriately changing the halftone dot output level by the dot generator of the output scanner. The computer stores the fine uneven pattern p1 and p2 as image data in advance, and stores the mask pattern MP1 in the computer.
For the specified regions r1 and r2
1, a computer graphic method of mapping (pasting) p2 may be used. The fine uneven patterns p1 and p2 are clearly distinguished in gloss between the adjacent regions R1 and R2 in the recessed portion F formed on the surface of the base material of the embossed decorative material according to the present invention as a final product. You need to make a choice. Naturally, the fine irregularities on the bottom surface of the concave portion F formed by these fine irregularities patterns p1 and p2 are also different in plan view. The roughness of the fine concavo-convex shape applied to the embossing plate 20 according to the present invention is the center line average roughness (JIS).
-B0601) is preferably about 0.1 to 50 μm.

FIG. 5 is an explanatory view of a plan view shape of the fine uneven pattern of the embossed decorative material according to the present invention. The fine concavo-convex pattern p is used to roughen the bottom surface of the recessed portion F to give it a unique gloss, and an extremely wide range of patterns as shown in FIG. 5 can be used. For example, as a pattern in which irregularities are regularly arranged, a cell array pattern of gravure printing as shown in FIG. 5A (usually a square cell as shown in FIG. Cells having other shapes such as hexagons may be used.) Alternatively, a halftone dot array pattern of offset printing as shown in FIG. 5B may be used, and Japanese Patent Application Laid-Open No. 8-146594 as shown in FIG. Publication of FM (Frequency Modu)
5) A halftone dot pattern in which halftone dots of a predetermined size formed by the screen are randomly distributed, a pattern formed by a grain screen as shown in FIG.
An irregular pattern created by computer graphic as shown in (e) may be used. Further, although not shown, a line pattern and a lattice pattern can be suitably applied.

FIG. 6 is an explanatory view showing an example of a method for producing an embossed decorative material according to the present invention. The manufacturing process of the embossed decorative material 10 according to the present invention includes the following three steps. 1) Step of creating image data of a mask pattern 2) Step of photo-etching an emboss plate (patterning and etching) 3) Step of embossing Image data of a mask pattern MP is created by the following method. A natural wood board original is once photographed on a silver halide photosensitive film by silver halide photography, etc., then scanned by a plate making scanner, photoelectrically converted, digitized and read, and stored on a hard disk of CEPS (COLOR ELECTRONIC PREPRESS SYSTEM). . Alternatively, digital image data obtained by taking an image using a digital camera, dividing the image into a CCD (charge-coupled device) image sensor, performing photoelectric conversion, and converting it into a digital signal may be directly input to the CEPS. Next, from the image data, only the conduit pattern P as shown in FIG. 1 is extracted as a binarized image on a display screen, and after endless correction or the like according to the circumferential length of the emboss plate cylinder, the conduit pattern P is extracted. Create an image file. Further, one of the fine concavo-convex shape patterns p as shown in FIG. 5 is selected, and the fine concavo-convex shape pattern image is stored in the computer. From now on, this conduit pattern P
As shown in FIG. 6, image data of the mask pattern MP can be created by image processing by a computer based on the input data of the fine uneven pattern p. As a specific method, for example, international publication W
The technique disclosed in O95 / 21060 can be partially used. That is, the conduit pattern P, which is a deformed elliptical shape, is once converted into an approximate elliptical model, and the boundary line C1 of each conduit pattern is determined as the major axis (longitudinal diameter) of the approximate ellipse from the elliptical image information. The regions r1 and r2 on both sides of the boundary line C1 are specified, and image data of the conduit pattern P obtained by inversely converting the long ellipse model into a deformed long ellipse is created as an image file. Further, the halftone dot shapes to be output to the specific regions r1 and r2 of the conduit pattern P and the output levels thereof are defined, or the fine irregular shape patterns p1 and p for mapping to the regions r1 and r2.
2 is selected, and those image data are input to the computer. A mask pattern MP for patterning can be created using the image data of each pattern described above. As one of the methods, only the image data of the conduit pattern P is output (exposed) from a CEPS output scanner to a photosensitive film to create a mask pattern MP1 as shown in FIG. For the specific regions r1 and r2, halftone output is performed by changing the output level, and the fine uneven pattern p1 and p2 of the plain net shape composed of two types of halftone dots having different areas are incorporated in the conduit pattern P. The following mask pattern MP2 is created. The mask patterns MP1 and MP2 function as conventionally used photomasks (light shielding masks).
As another method, the image data of each of the above patterns is directly output to the resist photosensitive film provided on the embossing plate surface by using a direct exposure apparatus by laser beam scanning, which is substantially similar to the case of a photomask. This is a method in which a resist pattern having the same planar shape is directly formed on the embossing plate surface. Any of the above may be used, but since the latter filmless manufacturing process is more efficient, the latter case will be described in more detail with reference to FIGS.
First, the image data of the binarized conduit pattern P is output by a direct exposure apparatus using laser light beam scanning onto a copper plating layer of an embossed plate base material 1 on which a negative resist photosensitive film has been formed in advance. Exposure while modulating the light beam that scans with the printing pattern image data, printing, developing, washing and removing the photosensitive film of the non-exposed part,
A resist layer 2 corresponding to the conduit pattern P as shown in FIG.
1 is obtained. The non-resist surface of the embossed plate surface is corroded and etched to a predetermined depth d1 indicated by a dotted line with a corrosive solution such as an aqueous ferric chloride solution. Next, a resist photosensitive film is formed again on the entire surface of the embossed printing plate obtained in step 1. Then, the fine uneven pattern p image data is applied to each of the conduit patterns P with respect to the protruding plate surface projections protected by the resist. Regions r1, r in
2 are printed at the specified output (exposure) level, and baked and developed, and the photosensitive film in the non-exposed area is removed by washing. The resist layer corresponding to the fine uneven patterns p1 and p2 shown in FIG. One embossed plate substrate having 2-2 is obtained. When the small opening non-resist surface of the projecting plate surface is corroded and etched to a predetermined depth d2, d3 shown by a dotted line with a corrosive solution such as an aqueous ferric chloride solution, and the resist film is removed. As a result, an embossing plate E in which different fine irregularities are formed in the convex portions 3 in the regions r1 and r2 is obtained. Finally, the entire surface of the embossing plate E is finished by chrome plating. The plating is preferably mat (matte) plating, or the entire surface of the embossed plate is roughened by sandblasting and then plated to matte the surface of the embossed plate (particularly the surface other than the wood grain conduit cross-sectional pattern). The surface is rough. The embossing plate used in the present invention may be cylindrical (cylindrical) or flat.

Next, as shown in FIG. 6, the top substrate sheet 4 is embossed using the embossing plate E prepared by the above-described manufacturing method, and the grain pattern is printed in advance by gravure printing or the like. When the base substrate sheet 5 on which the ink layer 5 is formed is laminated, the embossed decorative sheet 10
Is obtained. As a typical method for producing the embossed base sheet 10, an embossed base sheet 10 made of a thermoplastic resin such as a polyolefin resin or polyvinyl chloride is used.
Is heated and softened, and the embossing plate E is pressed against the surface. To further categorize this method,
(1) The single-layer sheet (only the top substrate sheet) is heated and softened, and the embossing plate E is pressed, or (2) the top substrate sheet 4 is embossed, and the embossed plate is applied to the base substrate sheet 6 with an adhesive. Embossing is performed by dry laminating the base sheet into a two-layer laminate, or (3) heat-sealing the top base sheet 4 and the base base sheet 6 with hot pressure at the time of pressing the embossing plate. And lamination at the same time to form a two-layer laminate, or by extruding the top substrate sheet 4 by melting and extruding it from a T-die and bringing it into contact with an embossing plate cylinder also serving as a cooling roll, and embossing. There is a method in which doubling embossing is performed in-line with a base substrate sheet 6 inserted on the back surface of the sheet 4 to form a two-layer laminate. When the doubling embossing is performed in-line, the present invention is most effectively utilized. As another method, as disclosed in JP-A-57-87318, JP-A-7-32476, and the like, an uncured liquid material of an ionizing radiation-curable resin is applied to the surface of an embossing plate E, and Further, after the base material 6 is overlaid thereon, the liquid material is irradiated with ionizing radiation to cure the liquid material to form the top material 4 and adhere to the base material sheet 6, and then release from the embossing plate. A method of shaping the plate on the substrate sheet 4 may be used.
Alternatively, as another method, a wood grain print pattern is formed on paper such as titanium paper and impregnated with an uncured thermosetting resin such as melamine resin and diallyl phthalate resin. When placed on a substrate such as plywood and subjected to hot press molding, by inserting an embossing plate into the surface of the impregnated paper, the surface of the decorative board impregnated and cured with the thermosetting resin is simultaneously pressed with irregularities. May be used.

The final finishing step of the method for manufacturing the embossed decorative material 20 according to the present invention is, as shown in the following, when the embossed decorative sheet 10 is further processed into a backing material 7, for example, a door according to the final use. Finally, the embossed decorative material 20 according to the present invention is obtained by a method such as bonding a honeycomb board or the like.

The resist photosensitive film is classified into a negative type in which the exposed portion is cured and a positive type in which the exposed portion is developed and eluted. Any type may be used as long as it has a surface protecting function for etching. The resist may be formed directly on the metal substrate surface or by a transfer method such as carbon tissue. As the negative resist film, besides dichromated gelatin, a monomer or prepolymer of an acrylate having an acryl group or a methacryl group, a mixture of a bisazide and a diene rubber, a polyvinyl cinnamate compound, or the like is used. Can be.

[0017]

EXAMPLE An example of an embossed decorative material 20 according to the invention was produced in the following manner and compared with a conventional embossed decorative material. Oak with a relatively dense wood grain conduit groove
The grain of the material was photographed using a digital camera. This digital camera has a 45 million pixel solid-state image sensor (CC
D), the signal from the CCD was A / D-converted to 8-bit (256 steps) gradation in terms of density to obtain digital image information, which was recorded on a hard disk. From the digital image downloaded to the hard disk, the conduit pattern P is converted into a binarized image.
Extracted on a MAX display, and subjected to endless processing according to the circumference of the embossed cylinder (930 mm).
An image file of the conduit pattern P as shown in FIG. 1 was created.
Next, by computer image processing based on this conduit pattern image, it was converted into an approximate elliptical shape, and both sides of the boundary line corresponding to the major axis were specified. Created. Also, the regions r1, r2
The halftone output levels are specified so that the offset halftone areas are 10% and 45%, respectively. Next, a negative resist photosensitive film made of dichromated gelatin is applied to the surface of the embossing cylinder provided with a copper plating layer on the surface of the iron core, and the argon ion laser beam scanning control for moving the applied surface is performed. First, the conduit pattern image prepared by the above method is output using an apparatus (manufactured by Sink Laboratory Co., Ltd.), developed with warm water to remove the non-exposed portions, and then the non-resist surface is treated with an aqueous ferric chloride solution. To a depth of about 70 μm. (FIG. 6) Subsequently, using the same apparatus, the halftone dot area is reduced to 10% and 45% for each region r1 and r2 of each conduit pattern P with respect to the resist photosensitive film formed again on the entire surface of the cylinder. The halftone dot output of 150 lines / inch is output as shown in FIG.
Each of the non-resist surfaces of the regions r1 and r2 is 3 to 5 μm.
m, corrosion and etching to a depth of 10 to 15 μm to form fine irregularities, thereby producing an embossed plate E. (Fig. 6,) Finally, the surface of the printing plate is photo-etched and roughened using a separately prepared pear-skinned pattern image, and then chrome-plated to complete the embossed plate and then cooled. The following embossing was performed as a roller. A blend material obtained by adding 8000 ppm of a benzotriazole ultraviolet absorber, 4000 ppm of a hindered amine radical scavenger, and 500 ppm of erucamide to a terpolymer of ethylene-propylene-butene containing 90% by weight of propylene was melt-extruded from a T-die. Then, at the same time as forming a base sheet 4 of a polyolefin-based thermoplastic elastomer having a thickness of 80 μm, embossing of the base sheet 4 by a cooling roll and a nip roll and lamination on a separately supplied base sheet 6 are simultaneously performed. The embossed decorative sheet 10 according to the present invention was produced. The laminate base sheet is gravure-printed in advance with a two-component effect type acrylic urethane resin as a binder, and a gravure print with an ink containing a pigment mainly composed of red iron oxide, graphite, and carbon black. 55 parts by weight of the high-density polyethylene having 5 formed thereon, 30 parts by weight of hydrogenated styrene-butadiene rubber, 10 parts by weight of an inorganic filler composed of calcium carbonate powder, and a pigment 5 composed of titanium white, red iron oxide, carbon black, and graphite Lamination was performed on the printing ink layer 5 side using a colored sheet composed of a blended material of a polyolefin-based thermoplastic elastomer obtained by mixing parts by weight. The embossed decorative sheet 10 thus obtained was further backed with a backing material (hardboard) 7 to complete an example sample. The texture of the surface of the example sample manufactured as described above was measured by using the embossed plate manufactured by omitting the step of forming the fine unevenness of the embossed plate of the example.
Except that embossing was performed at a depth of 0 μm, the embossed decorative material 30 (comparative sample, FIG. 7) manufactured by the same natural wood board (oak), material, and process as in the example was used. Example sample has emboss depth of 7
Although there is only 0 μm, the depth equivalent to that of the comparative example sample having a depth of 100 μm is visually felt. It has become clear that it has a quaint texture and sophisticated design expression.

[0018]

According to the present invention, in a concave portion for reproducing a wood grain conduit groove, a joint groove, or the like, a unique fine uneven shape is formed in each of the divided areas on the bottom surface of the concave portion, thereby providing different gloss. , The concave portion has a visual effect that looks deeper than the actual depth, so that a thin embossed base sheet 4 can be used. In the case of doubling embossing in which extrusion molding and embossing are simultaneously performed in-line, production efficiency can be improved. Also, at the recess corresponding to the wood grain conduit groove, a shadow is felt as if light is irradiated from one side, or a visual effect such that the center of the irregular shaped recess is deeper is brought about. In addition, it is possible to provide an embossed decorative material having a high degree of design and a monotonous texture. Further, by eliminating the wiping, it is possible to reduce the manufacturing cost and the delivery time.

[Brief description of the drawings]

FIG. 1 is an example of a conduit pattern extracted from a natural wood pattern

FIG. 2 is an explanatory view of a concave portion for a conduit pattern of an embossed decorative material according to the present invention.

FIG. 3 is a perspective view of a recessed portion intended for a joint groove in a tiled and brickwork pattern of an embossed decorative material according to the present invention.

FIG. 4 is a perspective view of an embossed cosmetic material according to the present invention, which is intended for an isolated irregular shaped travertine depression.

FIG. 5 is an explanatory view of a basic concavo-convex pattern used for creating a mask pattern of an embossed decorative material according to the present invention.

FIG. 6 is an explanatory view showing one example of a method for producing an embossed decorative material according to the present invention.

FIG. 7 is an explanatory view of a conventional embossed decorative material for a wood grain conduit cross-sectional pattern.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Emboss plate base material 2-1 Resist layer 2-2 Resist layer 3 Convex part 4 Top base sheet 5 Printing ink layer 6 Base base sheet 7 Backing material 10 Emboss decorative sheet 20 Emboss decorative material according to the present invention 30 Conventional Embossed decorative material C Boundary, boundary line E Embossed plate F, F 'Depressed portion MP Mask pattern p Fine unevenness pattern P Conduit pattern R region (recessed portion) r region (conduit pattern)

Continued on front page F-term (reference) 2E110 AA57 AA70 AB03 AB04 AB05 AB23 AB46 BA02 BA12 BB22 BB23 DA06 DC21 EA05 EA09 GA03W GA04W GA05W GA23W GA32W GA33W GA33X GA37X GB43W GB44W GB46W GB49W GB52W GB54W CD62 CD06 CD63 CD06 CD06 EA18 FD04

Claims (1)

[Claims] 1. An embossed decorative material having a plurality of recesses on a surface of a base material, wherein a bottom surface of the recesses is formed in a region showing at least two or more different predetermined glosses by changing a fine uneven shape. An embossed decorative material which is demarcated and has different gloss at boundaries between adjacent areas.