Decorative sheet and decorative board

Abstract

To provide a decorative sheet and a decorative board having improved scratch resistance.SOLUTION: There is provided a decorative sheet 10, comprising: a printing substrate layer 1; a picture pattern layer 3 provided on an upper side UP of the printing substrate layer 1; a first surface protective layer 4 provided on the upper side UP of the picture pattern layer 3 and containing a spherical filler 4a having an average particle size of 3.0 μm or more and 7.0 μm or less; and a second surface protective layer 5 partially provided on the upper side UP of the first surface protective layer 4 and containing spherical filler 5a having an average particle size of 3.0 μm or more and 7.0 μm or less.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a decorative sheet and a decorative board. [Background technology]

[0002] BACKGROUND ART Conventionally, decorative sheets and decorative boards have been used for the surface decoration of interior materials and fixtures in buildings such as houses, building materials such as fittings, furniture, fixtures, housing equipment, home appliances, and the like.

[0003] There is a demand for decorative sheets and boards that have a wood grain pattern and a low gloss design, reproducing a design similar to that of a real wood grain veneer decorative board. With low gloss decorative sheets and boards that reproduce a design similar to that of a veneer decorative board, scratches on the surface can cause a change in gloss on the surface, potentially reducing the design. Therefore, decorative sheets and boards that reproduce a low gloss design similar to that of a veneer decorative board are required to have excellent scratch resistance.

[0004] Decorative sheets and boards with improved scratch resistance include those described in Patent Document 1. The decorative sheet and board described in Patent Document 1 have a picture pattern layer, a first surface protective layer, and a second surface protective layer laminated in this order on a sheet substrate. The decorative sheet and board described in Patent Document 1 improve scratch resistance by including spherical fillers with an average particle size of 3.0 μm or more and 7.0 μm or less in the first surface protective layer. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-165030 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the case of decorative sheets and decorative boards such as those described in Patent Document 1, which contain spherical fillers with an average particle size of 3.0 μm or more and 7.0 μm or less in the first surface protective layer, if the second surface protective layer is scratched, the gloss of the second surface protective layer may change, resulting in a reduction in design.

[0007] In light of the above circumstances, an object of the present invention is to provide a decorative sheet and decorative board with improved scratch resistance. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention proposes the following means. The decorative sheet of the present invention comprises a printing substrate layer, a picture pattern layer provided on the upper side of the printing substrate layer, a first surface protective layer provided on the upper side of the picture pattern layer and containing spherical filler having an average particle size of 3.0 μm or more and 7.0 μm or less, and a second surface protective layer partially provided on the upper side of the first surface protective layer and containing spherical filler having an average particle size of 3.0 μm or more and 7.0 μm or less.

[0009] In the decorative sheet, the 60-degree reflected gloss of the upper surface may be 3.0 or more and 4.0 or less.

[0010] In the decorative sheet, the first surface protective layer may contain a mixture of a thermosetting resin and an ultraviolet-curable resin, an ultraviolet-curable resin, or an ionizing radiation-curable resin.

[0011] In the decorative sheet, the second surface protective layer may contain a mixture of a thermosetting resin and an ultraviolet-curable resin, an ultraviolet-curable resin, or an ionizing radiation-curable resin.

[0012] In the decorative sheet, the second surface protective layer may be provided at a position that is in harmony with the pattern of the picture design layer.

[0013] The decorative sheet may further comprise a base colored layer provided on the upper side of the printing substrate layer and below the picture pattern layer.

[0014] The decorative board of the present invention comprises any of the decorative sheets described above and a decorative board substrate provided below the decorative sheet. [Effects of the Invention]

[0015] According to the decorative sheet and decorative board of the present invention, it is possible to provide a decorative sheet and decorative board with improved scratch resistance. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a cross-sectional view schematically showing a decorative board according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0017] An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view that schematically shows a decorative board 100 according to this embodiment.

[0018] In this embodiment, as shown in Figure 1, the thickness direction of the decorative board 100 is defined as the "vertical direction V", the side of the decorative board 100 on which the decorative board substrate 20 is provided is defined as the "lower side LO" in the vertical direction V, and the side opposite the lower side LO is defined as the "upper side UP" in the vertical direction V.

[0019] The decorative board 100 comprises a decorative sheet 10 and a base material 20 for decorative boards.

[0020] The decorative board substrate 20 is a layer provided on the lower side LO of the decorative board 100. Particle board, medium density fiberboard (MDF), or the like can be used as the decorative board substrate 20. As the decorative board substrate 20, a metal plate-like member such as aluminum or stainless steel, or a composite board in which metal such as aluminum is attached to both sides of a core material made of resin such as polyethylene, may also be used.

[0021] The decorative sheet 10 comprises a printing substrate layer 1, a base colored layer 2, a picture design layer 3, a first surface protective layer 4, and a second surface protective layer 5.

[0022] The printing substrate layer 1 is a layer provided on the lower side LO of the decorative sheet 10. In the decorative board 100, the printing substrate layer 1 is provided on the upper side UP of the substrate 20 for decorative board.

[0023] The printing substrate layer 1 is a sheet-like layer made of a known material that can be printed on. As the printing substrate layer 1, a fibrous sheet such as tissue paper or titanium paper can be used.

[0024] The printing substrate layer 1 may be made of resin-impregnated paper, resin-mixed paper, reinforced paper, bleached or unbleached kraft paper, linter paper, fine paper, coated paper, inorganic paper, flame-retardant paper, paperboard, Japanese paper, etc. The printing substrate layer 1 may be made of a resin sheet such as polyethylene, polypropylene, or polyvinyl chloride, or a woven or nonwoven fabric.

[0025] A moisture-proof sheet may be used as the printing substrate layer 1. For example, moisture-proof paper comprising two paper substrates and a moisture-proof resin layer disposed between the two paper substrates in the up-down direction V can be used as the printing substrate layer 1 to impart moisture-proof properties to the printing substrate layer 1.

[0026] The paper base material of the moisture-proof paper can be, for example, a reinforced paper containing resin between cellulose fibers. The moisture-proof resin layer of the moisture-proof paper is a layer made of a moisture-proof resin that does not allow water vapor to pass through. The moisture-proof resin that forms the moisture-proof resin layer of the moisture-proof paper can be, for example, a thermoplastic resin such as an olefin resin.

[0027] The base color layer 2 is a layer provided on the upper side UP of the printing substrate layer 1. The base color layer 2 is a layer that provides base coloring for the picture pattern layer 3 and also provides concealment to prevent the color and texture of the printing substrate layer 1 and the decorative plate substrate 20 from penetrating through to the surface of the decorative sheet 10 and the decorative plate 100.

[0028] Nitrocellulose-based printing inks and the like can be used for the base colored layer 2. As a printing method for the base colored layer 2, known printing methods such as gravure printing, offset printing, flexographic printing, silk screen printing, and inkjet printing can be used.

[0029] The picture pattern layer 3 is a layer provided on the upper side UP of the base colored layer 2. The picture pattern layer 3 is formed by printing a picture pattern such as wood grain, stone grain, or sand grain on the upper side UP of the base colored layer 2.

[0030] A known printing method such as gravure printing, offset printing, flexographic printing, silk screen printing, or inkjet printing can be used as the printing method for the picture pattern layer 3. For the picture pattern layer 3, a known printing ink suitable for the printing method to be used can be used.

[0031] The first surface protective layer 4 is a layer provided on the upper side UP of the picture / pattern layer 3. The first surface protective layer 4 can be made of a mixture of a thermosetting resin and an ultraviolet-curing resin, an ultraviolet-curing resin, or an ionizing radiation-curing resin. By using these materials as the resin for forming the first surface protective layer 4, the scratch resistance of the surface 10s of the decorative sheet 10 can be improved. The surface 10s of the decorative sheet 10 refers to the surface of the upper side UP of the decorative sheet 10. It is preferable to use a transparent or translucent material for the first surface protective layer 4 that allows the pattern of the picture / pattern layer 3 to be seen through.

[0032] The first surface protective layer 4 is a sheet-like layer that covers the entire picture pattern layer 3. As shown in Fig. 1, the first surface protective layer 4 includes first particle portions (spherical fillers) 4a.

[0033] The first particle portions 4a have an average particle size of 3.0 μm or more and 7.0 μm or less. The average particle size of the first particle portions 4a is preferably 5.0 μm. The first particle portions 4a are, for example, a filler of an inorganic compound such as a silicone resin.

[0034] Using an inorganic compound filler as the first particle portions 4a is preferable in terms of hardness compared to using an organic compound filler, and an improvement in the hardness of the first surface protective layer 4 can be expected.

[0035] It is preferable that the particle diameter of the first particle portions 4a is approximately the same as the thickness in the vertical direction V of the first surface protective layer 4. By using first particle portions 4a having approximately the same particle diameter as the thickness of the first surface protective layer 4, the scratch resistance of the first surface protective layer 4 can be further improved.

[0036] It is preferable to use a transparent or semi-transparent material for the first particle portion 4 a so that the design of the design pattern layer 3 can be seen through the first surface protective layer 4 .

[0037] The difference between the maximum particle size and the minimum particle size in the particle size distribution of the first particle portions 4a is 8 μm or less, and preferably 3 μm or less. The first particle portions 4a contained in the first surface protective layer 4 preferably cover 40% to 80% of the first surface protective layer 4, and more preferably cover the first surface protective layer 4 so as to leave almost no gaps.

[0038] The first surface protective layer 4 can be formed by a known printing method such as gravure printing, offset printing, flexographic printing, silk screen printing, or inkjet printing.

[0039] When the first surface protective layer 4 containing the first particle parts 4a is printed on the upper side UP of the picture pattern layer 3, it is preferable to use intaglio printing such as gravure printing. The first surface protective layer 4 may also be formed using a known coating device.

[0040] The second surface protective layer 5 is a layer provided on the upper side UP of the first surface protective layer 4. The decorative sheet 10 comprises a plurality of second surface protective layers 5 partially provided on the upper side UP of the first surface protective layer 4. The second surface protective layers 5 partially provided on the upper side UP of the first surface protective layer 4 are preferably provided in positions that are in harmony with the pattern of the picture pattern layer 3.

[0041] It is preferable to use a transparent or semi-transparent material for the second surface protective layer 5 so that the design of the design pattern layer 3 can be seen through the first surface protective layer 4. A mixture of a thermosetting resin and an ultraviolet curing resin, an ultraviolet curing resin, an ionizing radiation curing resin, or the like can be used for the second surface protective layer 5. By using these materials as the resin for forming the second surface protective layer 5, the scratch resistance of the surface 10s of the decorative sheet 10 can be improved.

[0042] As shown in FIG. 1, the second surface protective layer 5 includes second particle portions (spherical fillers) 5a.

[0043] The second particle portions 5a have an average particle size of 3.0 μm or more and 7.0 μm or less. The second particle portions 5a preferably have an average particle size of 5.0 μm. The second particle portions 5a are, for example, a filler of an inorganic compound such as a silicone resin.

[0044] Using an inorganic compound filler as the second particle portion 5a is preferable in terms of hardness compared to using an organic compound filler, and an improvement in the hardness of the second surface protective layer 5 can be expected.

[0045] It is preferable that the particle diameter of the second particle portions 5a is approximately the same as the thickness in the vertical direction V of the second surface protective layer 5. By using second particle portions 5a having approximately the same particle diameter as the thickness of the second surface protective layer 5, the scratch resistance of the second surface protective layer 5 can be further improved.

[0046] It is preferable to use a transparent or semi-transparent material for the second particle portion 5a so that the design of the design pattern layer 3 can be seen through the first surface protective layer 4 and the second surface protective layer 5.

[0047] The difference between the maximum particle size and the minimum particle size in the particle size distribution of the second particle portions 5a is 8 μm or less, and preferably 3 μm or less. The second particle portions 5a contained in the second surface protective layer 5 preferably cover 40% to 80% of the second surface protective layer 5, and more preferably cover the second surface protective layer 5 so as to leave almost no gaps.

[0048] The second surface protective layer 5 can be formed by a known printing method such as gravure printing, offset printing, flexographic printing, silk screen printing, or inkjet printing.

[0049] When the second surface protective layer 5 containing the second particle parts 5a is printed on the upper side UP of the first surface protective layer 4, it is preferable to employ intaglio printing such as gravure printing. The second surface protective layer 5 may also be formed using a known coating device.

[0050] The surface 10s of the decorative sheet 10 preferably has a 60-degree reflected gloss of 3.0 or more and 4.0 or less. In this embodiment, the reflected gloss refers to the specular gloss defined in JIS Z 8741. The 60-degree reflected gloss refers to the 60-degree specular gloss in the above-mentioned JIS standard, and indicates the gloss of light reflected from the surface 10s of the decorative sheet 10 at an incident angle of 60 degrees. The gloss of reflected light can be measured using a measuring instrument such as a surface gloss meter.

[0051] By setting the 60-degree reflected gloss to be 3.0 or more and 4.0 or less, the decorative sheet 10 and decorative board 100 can have a low-gloss design, and can have a design similar to that of a real wood-grain sliced ​​veneer decorative board.

[0052] One method for adjusting the gloss of the surface 10s of the decorative sheet 10 is to add a matting agent to the first surface protective layer 4 or the second surface protective layer 5. In this embodiment, the 60-degree reflected gloss of the surface 10s of the decorative sheet 10 is adjusted to 3.0 or more and 4.0 or less by adding amorphous silica with an average particle size of 4 μm to the first surface protective layer 4 and the second surface protective layer 5.

[0053] In this embodiment, the first surface protective layer 4 has a lower gloss than the second surface protective layer 5. For example, by adding a larger amount of amorphous silica to the first surface protective layer 4 than to the second surface protective layer 5, the gloss of the first surface protective layer 4 can be made lower than that of the second surface protective layer 5. The gloss of the surface 10s of the decorative sheet 10 may also be adjusted by using a low-gloss resin material as the resin forming the first surface protective layer 4 or the second surface protective layer 5.

[0054] As described above, the first surface protective layer 4 and the second surface protective layer 5 contain the spherical fillers 4a, 5a having an average particle size of 3.0 μm or more and 7.0 μm or less, and therefore have excellent scratch resistance.

[0055] Therefore, decorative sheet 10 and decorative board 100, which have a low-gloss design similar to that of a real wood-grain sliced ​​veneer decorative board, are less susceptible to scratches on surface 10s of decorative sheet 10, and gloss changes caused by scratches on surface 10s of decorative sheet 10 can be suppressed. As a result, decorative sheet 10 and decorative board 100 can maintain a low-gloss design on surface 10s of decorative sheet 10.

[0056] The decorative sheet 10 and decorative board 100 of this embodiment comprise a printing substrate layer 1, a picture pattern layer 3 provided on the upper side UP of the printing substrate layer 1, a first surface protective layer 4 provided on the upper side UP of the picture pattern layer 3 and containing spherical filler 4a having an average particle size of 3.0 μm or more and 7.0 μm or less, and a second surface protective layer 5 partially provided on the upper side UP of the first surface protective layer 4 and containing spherical filler 5a having an average particle size of 3.0 μm or more and 7.0 μm or less.

[0057] As a result, it is possible to provide a decorative sheet 10 and a decorative board 100 with improved scratch resistance.

[0058] Although one embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design modifications and the like are also included within the scope of the present invention. Furthermore, the components shown in the above-described embodiment and the following modified examples can be appropriately combined to form a configuration.

[0059] (Variation 1) In the above embodiment, the decorative sheet 10 and the decorative board 100 are provided with a base colored layer 2, but the form of the decorative sheet and the decorative board is not limited to this. The decorative sheet and the decorative board do not have to be provided with a base colored layer 2.

[0060] When the base coloring and concealing properties provided by the base coloring layer 2 are not required, the decorative sheet and decorative board do not need to have the base coloring layer 2. When the decorative sheet and decorative board do not have the base coloring layer 2, the picture pattern layer 3 is provided on the upper side UP of the printing substrate layer 1.

[0061] The present invention will be described in detail below with reference to examples, but the present invention is not limited to the following examples.

[0062] Example 1 As the printing substrate layer 1, a basis weight of 45 g / m 2 A thin paper of the above formula was prepared. On the upper side UP of the printing substrate layer 1, a base coloring layer 2, which serves both as a base coloring and to provide hiding properties, and a picture pattern layer 3, which has a wood grain pattern with a vessel pattern, were printed in this order using a nitrocellulose-based gravure printing ink.

[0063] The upper side of the pattern layer 3 is coated with 3.0 g / m 2 A mixture of a thermosetting resin and an ultraviolet curing resin was applied so as to form a first surface protective layer 4. The first surface protective layer 4 contained first particle parts 4a having an average particle size of 5.0 μm.

[0064] A second surface protective layer 5 made of a mixture of a thermosetting resin and an ultraviolet curing resin was applied by gravure onto the upper side UP of the first surface protective layer 4, thereby obtaining the decorative sheet 10 of Example 1.

[0065] Second particle portions 5a having an average particle size of 5.0 μm were contained in the second surface protective layer 5. Furthermore, amorphous silica was added to the first surface protective layer 4 and the second surface protective layer 5, and the 60-degree reflected gloss on the surface 10s of the decorative sheet 10 was adjusted to be 3.0 or more and 4.0 or less.

[0066] Example 2 A decorative sheet 10 of Example 2 was obtained in the same manner as in Example 1, except that the first surface protective layer 4 contained first particle parts 4a having an average particle size of 3.0 μm.

[0067] Example 3 A decorative sheet 10 of Example 3 was obtained in the same manner as in Example 1, except that the first surface protective layer 4 contained first particle parts 4a having an average particle size of 4.0 μm.

[0068] Example 4 A decorative sheet 10 of Example 4 was obtained in the same manner as in Example 1, except that the first surface protective layer 4 contained first particle parts 4a with an average particle size of 6.0 μm.

[0069] Example 5 A decorative sheet 10 of Example 5 was obtained in the same manner as in Example 1, except that the first surface protective layer 4 contained first particle parts 4a having an average particle size of 7.0 μm.

[0070] Example 6 A decorative sheet 10 of Example 6 was obtained in the same manner as in Example 1, except that the second surface protective layer 5 contained second particle portions 5a having an average particle size of 3.0 μm.

[0071] Example 7 The decorative sheet 10 of Example 7 was obtained in the same manner as in Example 1, except that the second surface protective layer 5 contained second particle portions 5a having an average particle size of 4.0 μm.

[0072] Example 8 A decorative sheet 10 of Example 8 was obtained in the same manner as in Example 1, except that the second surface protective layer 5 contained second particle portions 5a having an average particle size of 6.0 μm.

[0073] Example 9 A decorative sheet 10 of Example 9 was obtained in the same manner as in Example 1, except that the second surface protective layer 5 contained second particle portions 5a having an average particle size of 7.0 μm.

[0074] (Comparative Example 1) A decorative sheet of Comparative Example 1 was obtained in the same manner as in Example 1, except that the second surface protective layer did not contain the second particle portion.

[0075] (Comparative Example 2) A decorative sheet of Comparative Example 2 was obtained in the same manner as in Example 1, except that the first surface protective layer did not contain the first particle portion.

[0076] (Comparative Example 3) A decorative sheet of Comparative Example 3 was obtained in the same manner as in Example 1, except that the first surface protective layer did not contain the first particle portion and the second surface protective layer did not contain the second particle portion.

[0077] Comparative Example 4 A decorative sheet of Comparative Example 4 was obtained in the same manner as in Example 1, except that second particle portions having an average particle size of 2.0 μm were incorporated into the second surface protective layer.

[0078] (Comparative Example 5) A decorative sheet of Comparative Example 5 was obtained in the same manner as in Example 1, except that second particle portions having an average particle size of 8.0 μm were incorporated into the second surface protective layer.

[0079] (Comparative Example 6) A decorative sheet of Comparative Example 6 was obtained in the same manner as in Example 1, except that the first surface protective layer contained first particle portions having an average particle size of 2.0 μm.

[0080] (Comparative Example 7) A decorative sheet of Comparative Example 7 was obtained in the same manner as in Example 1, except that the first surface protective layer contained first particle portions having an average particle size of 8.0 μm.

[0081] (Comparative Example 8) The decorative sheet of Comparative Example 8 was obtained in the same manner as in Example 1, except that the second surface protective layer did not contain the second particle portion and the 60-degree reflected gloss on the surface of the decorative sheet was adjusted to be 6.0 or more and 8.0 or less.

[0082] (Test 1) A scratch resistance evaluation test was conducted on the decorative sheets of Examples 1-9 and Comparative Examples 1-8. In the scratch resistance evaluation test, a scratch resistance test was conducted on the surface of the decorative sheet using a Martindale abrasion tester, and the presence or absence of scratches on the surface of the decorative sheet after the test was evaluated.

[0083] In the scratch resistance test using a Martindale abrasion tester, the test load was set to 6.0 N, the abrasion pieces were Scotch-Brite 7447 (manufactured by 3M Japan Ltd.), and the test cycle was set to 160 times.

[0084] The evaluation criteria were two-level, with a rating of 〇 being considered a pass. ◯ (Good): There are no noticeable scratches on the surface of the decorative sheet. × (Poor): There are noticeable scratches on the surface of the decorative sheet.

[0085] (Test 2) A gloss change evaluation test was conducted on the decorative sheets of Examples 1-9 and Comparative Examples 1-8. In the gloss change evaluation test, the presence or absence of gloss change on the surface of the decorative sheet after the scratch resistance test using the Martindale abrasion tester in Test 1 was evaluated.

[0086] The evaluation criteria were two-level, with a rating of 〇 being considered a pass. ◯ (Good): There is no noticeable change in gloss on the surface of the decorative sheet. × (Poor): There is a noticeable change in gloss on the surface of the decorative sheet.

[0087] (Test 3) A design evaluation test was conducted on the decorative sheets of Examples 1-9 and Comparative Examples 1-8. In the design evaluation test, a sensory evaluation was conducted focusing on whether the gloss of the surface of the decorative sheet was comparable to that of a real wood-grain sliced ​​veneer decorative board.

[0088] The evaluation criteria were two-level, with a rating of 〇 being considered a pass. ◯ (Good): The glossiness of the surface of the decorative sheet is about the same as that of the veneer decorative board. × (Poor): The glossiness of the surface of the decorative sheet is different from that of the veneer decorative board.

[0089] (Test results) The results of Tests 1-3 are shown in Table 1. Table 1 also shows the average particle size of the first particle portion contained in the first surface protective layer and the average particle size of the second particle portion contained in the second surface protective layer in Examples 1-9 and Comparative Examples 1-8. In the average particle sizes of the first particle portion and the second particle portion shown in Table 1, "-" indicates that the respective surface protective layer (first surface protective layer, second surface protective layer) does not contain the respective particle portion (first particle portion, second particle portion).

[0090] The decorative sheets 10 of Examples 1-9 showed good results in all tests. That is, the decorative sheets 10 of Examples 1-9 have a low-gloss design comparable to that of the targeted veneer decorative board, and are decorative sheets with excellent scratch resistance and suppressed gloss changes on the surface 10s of the decorative sheet 10.

[0091] The decorative sheet of Comparative Example 1, in which the second surface protective layer did not contain the second particle portion, showed a change in gloss in Test 2 and was rejected.

[0092] The decorative sheet of Comparative Example 2, in which the first surface protective layer did not contain the first particle portion, failed both Test 1 and Test 2.

[0093] The decorative sheet of Comparative Example 3, in which the first surface protective layer did not contain the first particle portion and the second surface protective layer did not contain the second particle portion, failed both Test 1 and Test 2.

[0094] The decorative sheet of Comparative Example 4, in which the average particle size of the second particle portion contained in the second surface protective layer was less than 3.0 μm, failed Test 2.

[0095] The decorative sheet of Comparative Example 5, in which the average particle size of the second particle portion contained in the second surface protective layer was greater than 7.0 μm, failed Test 2.

[0096] The decorative sheet of Comparative Example 6, in which the average particle size of the first particle portion contained in the first surface protective layer was less than 3.0 μm, failed both Test 1 and Test 2.

[0097] The decorative sheet of Comparative Example 7, in which the average particle size of the first particle portion contained in the first surface protective layer was greater than 7.0 μm, failed both Test 1 and Test 2.

[0098] The decorative sheet of Comparative Example 2, in which the second surface protective layer did not contain the second particle portion and the 60-degree reflected gloss on the surface of the decorative sheet was 6.0 or more and 8.0 or less, failed Test 3 because there was a discrepancy between the gloss on the surface of the decorative sheet and the gloss of the target veneer decorative board.

[0099] [Table 1] [Explanation of symbols]

[0100] 100 decorative panels 10 Decorative Sheet 1 Printing base material layer 2. Base color layer 3. Pattern layer 4 First surface protective layer 4a First particle part (spherical filler) 5 Second surface protection layer 5a Second particle part (spherical filler) 20 Base material for decorative panels V vertical direction UP upper side LO lower side

Claims

1. a printing substrate layer; A picture pattern layer provided on the upper side of the printing substrate layer; a first surface protective layer provided on the upper side of the picture pattern layer and containing spherical fillers having an average particle size of 3.0 μm or more and 7.0 μm or less; a second surface protective layer partially provided on the upper side of the first surface protective layer and containing spherical fillers having an average particle size of 3.0 μm or more and 7.0 μm or less; Equipped with Decorative sheet.

2. The 60-degree reflected gloss on the upper surface is 3.0 or more and 4.0 or less. The decorative sheet according to claim 1 .

3. the first surface protective layer contains a mixture of a thermosetting resin and an ultraviolet-curable resin, an ultraviolet-curable resin, or an ionizing radiation-curable resin; The decorative sheet according to claim 1 .

4. the second surface protective layer contains a mixture of a thermosetting resin and an ultraviolet-curable resin, an ultraviolet-curable resin, or an ionizing radiation-curable resin; The decorative sheet according to claim 1 .

5. The second surface protective layer is provided at a position in synchronization with the pattern of the picture pattern layer. The decorative sheet according to claim 1 .

6. Further provided is a base coloring layer provided on the upper side of the printing substrate layer and on the lower side of the picture pattern layer, The decorative sheet according to claim 1 .

7. The decorative sheet according to any one of claims 1 to 6, A decorative board substrate provided below the decorative sheet; Equipped with Decorative panel.

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