JPH0464443A - Graining decorative laminated sheet - Google Patents

Abstract

PURPOSE:To obtain appearance excellent in a real feeling similar to natural wood by constituting the title sheet of a thermoplastic supporting sheet with brightness, embossed uneven pattern having a specified line group pattern, transparent synthetic resin sheet and a graining pattern printing layer, and also laminating the supporting sheet to the transparent synthetic resin sheet. CONSTITUTION:The title sheet comprises: a thermoplastic supporting sheet 2 with brightness, which is provided on its surface with an embossed uneven pattern 3 formed of a parallel curve line group pattern with a width of 1 to 1000mum between each projection and recess or a line group pattern obtained by assembling a parallel curve line group to parallel straight line group; a transparent synthetic resin sheet 4 laminated on the surface side of the supporting sheet 2; and a graining pattern printing layer 5 provided on the side of the uneven pattern 3 of the supporting sheet 2 or the rear surface side of the transparent resin sheet 4. The above supporting sheet 2 and the transparent synthetic resin sheet 4 are integratedly laminated to each other through a transparent adhesive layer 6. Therefore, it is possible to obtain a beautiful graining appearance excellent in a real feeling similar to natural wood.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a woodgrain decorative sheet that provides a shiny appearance.

[Conventional technology and Problems that the invention seeks to solve]

Forming an uneven pattern on a decorative sheet to improve its decorative properties has been practiced for a long time, and examples of such decorative sheets include those in which an uneven pattern is formed on the surface side of a thermoplastic resin sheet. There is. However, since the above-mentioned decorative sheet has an uneven pattern formed on the surface side, the surface has poor stain resistance, and foreign substances such as dust can get into the uneven pattern, spoiling the aesthetic appearance of the surface, and causing wear and scratches. Therefore, there was a risk that the uneven shape would be damaged. On the other hand, a substrate sheet in which an uneven pattern is formed on the back side can eliminate the above-mentioned drawbacks. However, this type of decorative sheet is usually used by pasting it on the top surface of other sheets or plywood, and if an uneven pattern is formed on the back side, it will interfere with the light source if it is used in combination with other sheets or plywood. There has been a problem in that the design effect of the uneven pattern cannot be sufficiently obtained depending on the direction, viewing direction, etc. Furthermore, the concave-convex pattern in the conventional decorative sheet described above is a simple one that expresses a conduit satin finish of wood grain or a pattern of regular or irregular shapes with dots, and since the pinch of concave-convex is rough, it is said that the concave-convex texture is simply given. However, it was not possible to express an excellent design. Furthermore, there are decorative sheets with a woodgrain pattern that have a printed layer with a woodgrain pattern and an uneven woodgrain pattern on the surface.
The appearance of the wood grain was monotonous and lacked realism compared to natural wood.

The present invention has been made in view of the above-mentioned points, and an object thereof is to eliminate the drawbacks of the above-mentioned prior art and to provide a beautiful wood grain decorative sheet that has a shiny appearance similar to natural wood and has a realistic feel. shall be.

[Means for Solving the Problems] The decorative sheet of the present invention has convex portions and concave portions on the surface with a width of 1 to 10
A glittering thermoplastic support sheet provided with an embossed concavo-convex pattern consisting of a line group pattern of 00 μm parallel curves or a combination of parallel curves and parallel straight lines, and a thermoplastic support sheet laminated on the surface side of the support sheet. It consists of a transparent synthetic resin sheet and a woodgrain pattern printing layer provided on the uneven pattern side of the support sheet or the back side of the transparent synthetic resin sheet, and the support sheet and the transparent synthetic resin sheet are bonded to each other with a transparent adhesive layer interposed therebetween. The structure is characterized by an integrated laminated structure.

In addition, the decorative sheet of the present invention uses a thermoplastic synthetic resin sheet mixed with a glittering pigment or a thermoplastic synthetic resin sheet with a glittering ink layer printed on the entire surface as the thermoplastic support sheet having glittering properties. can do.

Furthermore, a glossy solid ink layer and a matte ink conduit pattern layer can be sequentially provided on the surface of the transparent synthetic resin sheet.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows one embodiment of the present invention, and the wood grain decorative sheet 1 of the present invention basically consists of a thermoplastic support sheet 2 having luster, and a surface of the support sheet 2, as shown in the figure. For laminating and integrating the transparent synthetic resin sheet 4 with an embossed uneven pattern 3 consisting of a specific line group pattern, a transparent synthetic resin sheet 4, a woodgrain pattern printed layer 5, and a support sheet 2 provided with the uneven pattern 3. It is composed of a transparent adhesive layer 6.

The woodgrain pattern printed layer 5 may be provided on the back surface of the transparent synthetic resin sheet 4 as illustrated in FIG. 1, or may be provided on the uneven pattern 3 surface of the support sheet 2 as shown in FIG.

Further, the support sheet 2 may be made of a thermoplastic material that produces a bright appearance, which is an element for creating a shine in the decorative sheet, and the support sheet 2 illustrated in FIG.
In addition to the thermoplastic synthetic resin sheet 7 kneaded with a glittering pigment such as the one shown in FIG. 2, for example, as shown in FIG. It may be composed of a color ink layer 9.

Furthermore, the decorative sheet 1 of the present invention has a glossy ink solid layer 1 on the surface of the transparent synthetic resin sheet 4, as shown in FIGS. 3 and 4.
0 may be provided on the entire surface, and further a conduit pattern layer 11 made of matte ink consisting of a conduit pattern of wood grain may be provided thereon.

The thermoplastic resins used for the synthetic resin sheet 7 and the synthetic resin base sheet 9 constituting the thermoplastic support sheet 2 include:
Vinyl polymers such as polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate-vinyl chloride copolymer, polyvinyl fluoride, polyvinyl butyral, polyvinylidene fluoride,
Styrene resins such as polystyrene, acrylic styrene, ABS, acrylic resins such as polyethyl methacrylate, polymethyl methacrylate, polyacrylonitrile, olefin resins such as polyethylene, polypropylene, polymethylpentyne, cellulose acetate, nitrocellulose, etc. Cellulose derivatives, polyamide resins such as nylon 6 and nylon 66, polyester resins such as polyethylene terephthalate, polyethylene terephthalate isophthalate copolymers, polybutylene terephthalate and polyacrylate, rubber resins such as butadiene and chloroprene rubber,
Polyvinyl alcohol resins such as vinylon and polyvinyl alcohol, polycarbonate, etc. can be used. Examples of bright pigments include metal powders such as copper powder, aluminum powder, and brass objects, pigments with metallic luster such as metal pieces and cut pieces of metal-deposited synthetic resin films, mica pigments such as titanium dioxide-coated mica, fish scale foil, Pigments having pearlescent luster or interference luster, such as bismuth acid chloride, can be used. As the glitter ink constituting the glitter ink layer 9, an ink containing the above-mentioned glitter pigment in a known vehicle is used. The glitter ink used for the support sheet 2 is preferably one containing mica pigment in terms of chemical stability such as acid resistance and alkali resistance. In particular, when attaching the decorative sheet 1 to another base material using a vinyl chloride/vinyl acetate copolymer adhesive, aluminum powder will cause a decrease in brightness and discoloration due to chemical changes, but titanium dioxide-coated mica will There is no significant change, which is good, and the selection range of the adhesive described above is also widened. In printing and forming the glitter ink layer 9 on the base sheet 8, printing methods such as gravure printing, flexographic printing, and silk screen printing can be employed.

The thickness of the support sheet 2 is about 20 to 200 μm,
Preferably it is 50 to 100 μm. Further, the sheet 2 may be colored if necessary. By applying this coloring, not only can the color tone of the entire decorative sheet be adjusted, but also the color, dirt, scratches, etc. of the base material can be hidden when the decorative sheet is used by being attached to another base material.

The embossed concave-convex pattern 3 is another element for creating a shiny appearance, and in particular, it is a concave-convex pattern that moves depending on the viewing angle and plays the role of creating a visible glow. That is, as shown in FIG. 5, the concavo-convex pattern 3 has a planar pattern that is a pattern of a group of parallel curves 12 ((a), (C) of the same figure).
) and (d)) or parallel curve group 12 and parallel straight line group 1
Pattern of line group formed by appropriately combining 3 ((b) in the same figure)
It consists of Moreover, the cross-sectional shape of each line group pattern is as shown in FIG.
1 and the width of the recessed portion 15: d2 is in the range of 1 to 1000 μm. A typical example of a group of parallel curves is one in which a plurality of connected curve units of sine waves, cycloid curves, and circular arcs are arranged and moved in parallel with each other. The line group pattern illustrated in FIG. 5(d) is a collection of line groups having respective parallel curve groups in each area surrounded by the contour line, and the shape or line of the contour line and the parallel curve group. This is an example of a pattern in which the direction is different for each contour region. In particular, according to the line group pattern having the structure as illustrated in FIG. A shiny appearance can be obtained. The uneven pattern 3 may be provided on the entire surface of the support sheet when the wood grain is illuminated over the entire surface of the decorative sheet, and may be provided only at necessary locations on the support sheet when the wood grain is partially illuminated.

When the width of the convex portions and concave portions exceeds 1000 μm, each group of parallel lines becomes conspicuous to the extent that each line can be identified, resulting in a geometric texture, which is unsuitable for reproducing the shine of natural wood grain. It is more preferable that the widths d+ and dz are 5 to 100 μm from the viewpoint of easily producing a clear and realistic shine. Further, the depth of the recess is usually about 1 to 100 μm, more preferably 5 to 25 μm. Furthermore, the depth of the concave portion is not uniform, but is appropriately distributed to each divided area and varies regularly (gradually), thereby creating a glaring appearance that subtly changes depending on the area. can be made to appear.

The uneven pattern 3 is formed by a conventionally known embossing method. Specifically, for example, an embossing plate (which may be in the form of a roll) having an uneven pattern formed by a photoetching method is used, and the support sheet 2 is brought into contact with the embossing plate under heating and pressure. An uneven pattern 3 can be formed on the surface of 2.

The wood grain pattern printing layer 5 is a pattern printing layer that reproduces the wood grain pattern of natural wood, etc., and this printing layer 5 contains a coloring agent and a coloring agent in a vehicle.
It is formed using ink or paint containing a plasticizer, etc. Examples of the vehicle include polyvinyl chloride resins, acrylic resins, vinyl acetate resins, nitrocellulose, aminoalkyd resins, butyral resins, cellulose derivatives such as nitrocellulose, acetylcellulose, ethylcellulose, and benzylcellulose, phenolic resins, and urea. resins, phthalic acid resins, maleic acid resins, melamine resins, polyvinyl acetate resins, polyvinyl chloride resins, acrylic resins, polyvinyl alcohol, polyvinyl butyral, epoxy resins, silicone resins, polyester resins, Polyamide resins, polyurethane resins, other synthetic resins, or rubber derivatives such as chlorinated rubber, cyclized rubber, and synthetic rubber can be used.

Further, a resin made into an ultraviolet curing type by adding an ultraviolet curing agent can also be used. The printing method is gravure printing,
Flexo printing, silk screen printing, etc. can be used.

For example, by appropriately combining the woodgrain pattern printed layer 5 and the uneven pattern 3, a woodgrain appearance with a desired shine can be created. In particular, in order to faithfully reproduce the shine of a straight-grained wood board, it is necessary to follow the flow direction of the wood grain of the wood grain pattern printing layer 5 and the flow direction of the wavy curve of the uneven pattern 3 (in the direction of the arrow in the figure), as shown in Figure 7. It is preferable to set it so that the two lines are substantially perpendicular to each other.

The transparent synthetic resin sheet 4 is a sheet made of resin such as vinyl chloride, urethane, acrylic, or epoxy. A sheet material made of an added ultraviolet curable resin is preferred from the viewpoint of scratch resistance and stain resistance. The thickness of this sheet 4 is 20 to 200
1! m, preferably about 50 to 100 μm.

The glossy ink constituting the glossy ink solid layer 10 may be a thermosetting resin such as polyurethane, polyester, epoxy, or aminoalkyd, or urethane acrylate,
An ink or paint using an ionizing radiation-curable resin such as polyester acrylate as a vehicle is preferred. This solid layer 10 is formed by coating so as to provide excellent gloss.

The matte ink constituting the conduit pattern layer 11 can be, for example, the same vehicle as the glossy ink with a matte agent added thereto. Examples of the matting agent include powders such as calcium carbonate, precipitated halium carbonate, silica, talc, clay, and shirasu balloons having a particle size of about 0.1 to 10 Im. The preferred amount of the matting agent added is about 1 to 20 parts by weight per 100 parts by weight of the ink.

The combination of the luster of the glossy ink solid layer 10 and the conduit pattern layer 11 of the matte ink produces a so-called gloss matte effect that appears to be rich in conduit patterns, resulting in a wood grain that closely resembles that of natural wood. You can feel it. In order to reliably obtain this effect, it is desirable that the surface gloss levels of both layers 10 and 11 differ by about 5 to 90 degrees. Further, both layers are the outermost layer portions of the decorative sheet 1, and as described above, they are made of ink using a curable resin as a vehicle, and therefore have excellent abrasion resistance.

The transparent adhesive layer 6 is made of a transparent adhesive applied to a known dry lamination method, and the transparent adhesive layer 6 is applied to the side of the support sheet 2 after forming the uneven pattern 3 or to the transparent synthetic resin sheet 4. After applying to the side and drying, both sheets 2
．． 4 are stacked and pressed together to integrate them. As the transparent adhesive, a known adhesive can be used, such as a vinyl acetate emulsion, an acrylic adhesive, a urethane adhesive, or the like. In the present invention, since the above-mentioned two sheets are laminated and integrated using a dry lamination method, in manufacturing the decorative sheet 1 of the present invention in which the uneven pattern 3 does not disappear due to embossing, it is necessary to form the uneven pattern on the support sheet 2. After forming the transparent synthetic resin sheet 4 and the necessary layers, the transparent synthetic resin sheet 4 is also provided with the necessary layers, and then both sheets are dry laminated to form a laminated structure. Furthermore, if the uneven pattern is embossed after each printing layer is formed on the support sheet, defects in the embossing plate, traces of pattern patterns, etc. become less noticeable.

A beautiful decorative plywood can be obtained by adhering the decorative sheet 1 to plywood or the like with the support sheet 2 side facing down. The base material to which the decorative sheet 1 can be attached may be any material that is normally used as a base material for decorative materials. Specific examples include paper such as tissue paper, bleached kraft paper, titanium paper, return paper, paperboard, and gypsum board, wood base materials such as wood, plywood, and particle board, gypsum board,
Examples include gypsum base materials such as gypsum slag board, metal plates such as iron plates, galvanized steel plates, copper plates, and aluminum plates.

In addition, in the present invention, in order to make the decorative sheet more beautiful and realistic, the outermost surface of the decorative sheet is embossed to imitate the uneven shape existing on the surface of natural wood, or embossed. Furthermore, the embossed recesses can be filled with wiping ink.

Next, the present invention will be explained in more detail by giving specific examples.

Example 1 A cedar wood grain pattern was printed on the back side of a transparent vinyl chloride sheet (manufactured by Riken Vinyl Co., Ltd.) with a thickness of 0.08 m using printing ink (manufactured by Showa Ink Co., Ltd.: Chemical X).

On the other hand, the thickness of aluminum powder pigment kneaded is 0.08.
Using an embossing roll on which a fine uneven pattern consisting of a line group pattern as shown in FIG. 5(d) with a width of convex and concave portions of 30 μm was formed on the surface of a vinyl chloride sheet of 30 mm in diameter, the heating drum temperature was 150°C. , embossing roll temperature 60
Embossing was performed under the conditions of °C and sheet feeding speed of 10 m/min to form an uneven pattern.

The above two sheets are dry laminated (adhesive...
・2-component urethane-based transparent adhesive, adhesive application amount...
5 μm/dry) to obtain a decorative sheet as shown in FIG.

This decorative sheet exhibited the luster of wood grain, had an appearance similar to natural wood with excellent three-dimensional effect and surface properties, and had good processability.

Example 2 A brown colored vinyl chloride sheet with a thickness of 0.08 mm (
Pearl ink containing mica powder (manufactured by Showa Ink: Ka
A straight-grained zelkova wood grain pattern was printed using Showa Ink's ``chemical χ''. Next, on the printing surface side, a wavy shape is formed by connecting arcs of 1/4 of the total circumference with a concave depth of 15 μm and a convex portion width of 30 μm so that the convex directions of adjacent arcs are alternately opposite to each other. Using an embossing roll on which a fine uneven pattern consisting of a striped pattern was formed, embossing was performed under the same conditions as in Example 1 to form an uneven pattern.

This sheet and a separately prepared transparent vinyl chloride sheet (manufactured by Riken Vinyl) with a thickness of 0.08 mm were dry laminated in the same manner as in Example 1 so that the separate sheet was laminated on the uneven surface. A decorative sheet as shown in the figure was obtained.

The obtained decorative sheet had an external design similar to natural wood, such as a glossy wood grain and a three-dimensional effect, and was excellent in workability.

Example 3 On the surface of a transparent vinyl chloride sheet (manufactured by Riken Vinyl) with a thickness of 0.08 mm, ? ! Adjustment ink (manufactured by Showa Ink, wiping No. 1.8) was printed on the surface to achieve a surface gloss level of 2.
A 5° glossy layer was formed, and a zelkova straight-grained conduit pattern was printed thereon using printing ink (manufactured by Showa Ink: G&M Conduit) to form a pattern printed layer with a surface gloss of 5°. Furthermore, a straight-grained zelkova wood grain pattern was printed on the back of this notebook using printing ink (manufactured by Showa Ink: KAKI).

On the other hand, a bar ink containing titanium dioxide coated mica powder (manufactured by Showa Ink: Chemical
Burl) was printed solidly using a grid plate with a plate depth of 80 μm. Next, on the printed surface of the hem, the concave portion depth was 15 μm, the convex portion width was 30 μm, and arcs of 1/4 of the total circumference were connected so that the convex directions of adjacent arcs were alternately opposite. Embossing was performed under the same conditions as in Example 1 using an embossing roll on which a fine uneven pattern consisting of a wave-like striped pattern was formed to form an uneven pattern.

Both of the above sheets are dry laminated in the same manner as in Example 1, with the wood grain pattern printed surface and the uneven pattern surface facing each other,
A decorative sheet as shown in FIG. 3 was obtained.

The obtained decorative sheet had an external design of M4Q natural wood, such as the shine of the wood grain and a three-dimensional effect, and was excellent in workability.

Example 4 A glossy layer was printed on the same transparent vinyl chloride sheet as in Example 3, and a matte zelkova straight-grain conduit pattern was also printed, and the same zelkova straight-grain wood grain pattern as in Example 3 was also printed on the back side of the sheet. 7
As shown in the figure, printing was carried out so that the grain direction was along the longitudinal direction of the sheet.

On the other hand, the same burl ink was printed solidly on the surface of the same colored vinyl chloride sheet as in Example 3, and on the printed surface side, an uneven pattern as shown below, which was approximately perpendicular to the flow direction of the wood grain pattern, was etched. Embossing was carried out under the same conditions as in Example 1 using an embossing roll formed in . That is, when the sheet feeding direction is the y-axis and the width direction thereof is the y-axis, the basic curve is a curve expressed by the following relational expression, and a plurality of these are arranged parallel to each other at intervals of 50 μm in the y-axis direction, and An embossing roll with a plate depth of 20 μm was used, on which a fine uneven pattern consisting of a line group pattern in which both the width of the convex portion and the concave portion were 50 μm was formed.

Both of the above sheets are dry laminated in the same manner as in Example 1, with the wood grain pattern printed surface and the uneven pattern surface facing each other,
A decorative sheet as shown in FIG. 3 was obtained.

The obtained decorative sheet had an external design similar to natural wood, such as a glossy wood grain and a three-dimensional effect, and was excellent in workability. In addition, since the wood grain printing pattern and uneven pattern are formed as described above, the effect that the shine of the wood grain appears to move is remarkable. A matte zelkova straight-grain conduit pattern was printed, and the same zelkova straight-grain wood grain pattern as in Example 3 was further printed on the back side of the sheet.

On the other hand, the same burl ink was printed on the surface of the same colored vinyl chloride sheet as in Example 3, and the same uneven pattern as in Example 3 was formed on the printed surface side by the same method.

Both of the above sheets are dry laminated in the same manner as in Example 1, with the wood grain pattern printed surface and the uneven pattern surface facing each other,
A decorative sheet as shown in FIG. 2 was obtained.

The obtained decorative sheet had an external design similar to natural wood, such as a glossy wood grain and a three-dimensional effect, and was excellent in workability. In addition, when compared with the decorative sheet obtained in Example 4, an effect was obtained in which minute lights appeared to move as the viewing angle changed.

[Effects of the Invention] Since the woodgrain makeup notebook of the present invention is configured as described above, it exhibits the following effects.

■ Due to the presence of a supporting sheet with glitter, an embossed uneven pattern with a specific line group pattern, and one layer of woodgrain pattern printing, it is possible to obtain a woodgrain pattern appearance as well as a shine appearance that corresponds to the woodgrain pattern, and the shine changes depending on the viewing angle. By changing it, it moves and appears visually, and therefore an extremely beautiful woodgrain appearance with a realistic feel similar to natural wood can be obtained. When the woodgrain pattern printing layer is provided on the back side of the transparent synthetic resin sheet, a transparent adhesive layer is interposed between the printing layer and the uneven pattern, resulting in a deep woodgrain appearance.

■ The transparent synthetic resin sheet is laminated onto the uneven pattern of the support sheet via a transparent adhesive layer similar to the dry lamination method, so the sheet is not melted and the uneven pattern is filled with adhesive. As a result, there is no possibility that the uneven pattern formed by embossing will disappear. Moreover, since the uneven pattern is not exposed on the surface of the decorative sheet, there is no risk of foreign matter such as dust getting into the uneven pattern surface, and the shine effect function and aesthetic appearance are not impaired. Furthermore, since no layer is formed on the back side of the support sheet, the design effect of the uneven pattern does not disappear even when the decorative sheet of the present invention is laminated with other sheets or plywood.

■ Normally, a transparent synthetic resin sheet is present on the surface side of the decorative sheet, so good surface protection is ensured, and especially when a hardening resin is used as the resin material, it has good wear resistance, chemical resistance,
The stain resistance etc. become even more excellent. In addition, when a glossy solid ink layer and a matte ink conduit pattern layer are provided on the surface of a transparent synthetic resin sheet, the conduit pattern appears concave upward due to the gloss matte effect, which faithfully reproduces the grain appearance of natural wood. However, a wood grain appearance that closely resembles natural wood grain can be obtained.

[Brief explanation of the drawing]

1 to 4 are cross-sectional views showing various embodiments of the decorative sheet of the present invention, 511il(a) to 511il(d) are plan views showing typical examples of line group patterns with uneven patterns, and FIG. 6 is an uneven FIG. 7 is a schematic partial cross-sectional view of the pattern, and is a plan view showing an example of a combination of an uneven pattern and a woodgrain pattern printed layer. ■... Woodgrain decorative sheet 2... Thermoplastic support sheet with glitter 3... Embossed uneven pattern 4... Transparent synthetic resin sheet 5... Woodgrain pattern printed layer 6... Transparent adhesive layer 7...
・Thermoplastic synthetic resin sheet 8 mixed with glitter pigment...Thermoplastic synthetic resin base sheet 9...Glitter ink layer 10...Glossy ink solid layer 11...Matte ink conduit Pattern layer 12... Parallel curve group 13... Parallel straight line group 14
...Convex part I5...Concave part Fig. 1 Fig. 5 (a) (b) (C) (d) Thermoplastic synthetic resin base material/-t 9 - Glitter I7 layer Fig. 3 Fig. Fig. 6 4 Convex portion 15... Concave portion

Claims (4)

[Claims] (1) Thermoplastic material with glittering properties, the surface of which is provided with an embossed concavo-convex pattern consisting of a pattern of parallel curves or lines that are a combination of parallel curves and parallel straight lines, each with a convex and concave width of 1 to 1000 μm. It consists of a support sheet, a transparent synthetic resin sheet laminated on the front side of the support sheet, and a woodgrain pattern printed layer provided on the uneven pattern side of the support sheet or the back side of the transparent synthetic resin sheet, and A wood grain decorative sheet characterized by having a structure in which a sheet and a transparent synthetic resin sheet are laminated and integrated through a transparent adhesive layer. (2) Claim 1, wherein the glittering thermoplastic support sheet is a thermoplastic synthetic resin sheet mixed with a glittering pigment.
Woodgrain decorative sheet as described. (3) The wood grain decorative sheet according to claim 1, wherein the glittering thermoplastic support sheet is a thermoplastic synthetic resin sheet having a glittering ink layer printed on its entire surface. (4) Claim 1, wherein a glossy ink solid layer and a matte ink conduit pattern layer are sequentially provided on the surface of a transparent synthetic resin sheet.
The wood grain decorative sheet according to any one of items 1 to 3.