Decorative sheet

Abstract

To provide a decorative sheet with an excellent application property.SOLUTION: A decorative sheet 1 comprises a base material 2 made of a resin sheet containing polyvinyl chloride resin, and a surface layer 4 provided on the base material 2 and containing an acrylic resin. In a semi-logarithmic graph with a vertical axis being a common logarithm (logarithm with a base 10) of a storage modulus [MPa] of a decorative sheet 1 and a horizontal axis being a temperature [K] of the decorative sheet 1, a slope of a line connecting two points plotted for the storage modulus (common logarithm) at 328.15K and a storage modulus (common logarithm) at 338.15K is -0.05 or more and -0.02 or less.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a decorative sheet.

Background Art

[0002] In various applications such as wall materials, millwork, fixtures, interior finishes of doors, etc., surface decoration of furniture, and interior decoration of automobiles and electrical appliances, decorative sheets are used to enhance the design by applying surface decoration. As such a decorative sheet, for example, one provided with a layer for ensuring heat stretchability on a base material is known.

[0003] For example, a decorative sheet having a base material layer and a protective layer provided on the base material layer, wherein the base material layer is made of a glycol-modified polyethylene terephthalate sheet and the protective layer is made of an ethylene-vinyl alcohol copolymer sheet has been proposed. And it is described that by using such a decorative sheet, a decorative sheet excellent in stain resistance, solvent resistance, and chemical resistance and having sufficient heat stretchability can be provided (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Here, conventionally, the decorative sheet is heated by a heat gun to make it soft and then attached to the object to be constructed. However, in the decorative sheet described in Patent Document 1 above, due to differences in the skill level of workers and the temperature during construction, etc., it is difficult to make the decorative sheet reach the desired softness with short-time heating, so there is a problem that the workability deteriorates.

[0006] Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a decorative sheet having excellent workability that does not depend on differences in the skill level of workers or the temperature during construction.

Means for Solving the Problems

[0007] In order to achieve the above object, the decorative sheet of the present invention includes a base material made of a resin sheet containing a polyvinyl chloride resin, and a surface layer provided on the base material and containing an acrylic resin. In a semi-logarithmic graph with the vertical axis being the common logarithm (logarithm with base 10) of the storage elastic modulus [MPa] of the decorative sheet and the horizontal axis being the temperature [K] of the decorative sheet, the slope of the straight line connecting two points plotted with the storage elastic modulus (common logarithm) at 328.15 K and the storage elastic modulus (common logarithm) at 338.15 K is -0.05 or more and -0.02 or less.

Effects of the Invention

[0008] According to the present invention, it is possible to obtain a decorative sheet having excellent workability that does not depend on differences in the skill level of workers or the temperature during construction.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0010] Hereinafter, the cosmetic sheet of the present invention will be specifically described. It should be noted that the present invention is not limited to the following embodiments, and can be appropriately modified and applied without changing the gist of the present invention.

[0011] As shown in FIG. 1, the cosmetic sheet of the present invention includes a base material 2, a printing layer 3 provided on the surface 2a of the base material 2, and a surface layer 4 provided on the surface 3a of the printing layer 3.

[0012] <Base material> The base material 2 is made of a resin sheet containing polyvinyl chloride (PVC) resin. By using a polyvinyl chloride resin sheet as the base material, it has characteristics such as being relatively inexpensive while having excellent durability, weather resistance, water resistance, etc., and having high tensile elasticity and tensile strength, and excellent thermoplasticity, so it can be constructed relatively easily.

[0013] In addition, the polyvinyl chloride resin sheet forming the base material 2 may contain various additives. As the additives, known additives commonly used in cosmetic sheets can be used, for example, plasticizers, colorants, strengthening agents, heat stabilizers, light stabilizers, antioxidants, processing aids, etc. Also, from the viewpoint of design, it is preferable that the resin sheet is colored with a colorant. It should be noted that these additives may be used alone or in combination of two or more.

[0014] In addition, examples of the plasticizer include diisononyl phthalate (DINP), di-2-ethylhexyl adipate (DOA), di-2-ethylhexyl phthalate (DEHP), etc. When the base material 2 contains a plasticizer, from the viewpoints of improving workability, finish, and shape retention, the content of the plasticizer in the resin sheet containing polyvinyl chloride resin is preferably 5 to 30 parts by mass, more preferably 10 to 25 parts by mass, based on 100 parts by mass of the polyvinyl chloride resin forming the resin sheet.

[0015] The thickness of the base material 2 is not particularly limited, but is preferably 50 to 200 μm, more preferably 80 to 170 μm. If the thickness of the base material 2 is 50 μm or more, the mechanical strength and concealability can be sufficiently improved. Further, if the thickness of the base material 2 is 170 μm or less, the three-dimensional formability is more excellent, and it becomes easier to ensure flexibility and printability.

[0016] <Printing layer> The printing layer 3 enhances the design property of the decorative sheet 1 and is formed on the surface 2a of the base material 2 by printing. In the printing layer 3, examples of the patterns and designs formed by printing include wood grain, stone grain, cloth grain, sand grain, tile pasted pattern, brick laid pattern, leather grain pattern, geometric pattern, characters, symbols, and metallic. Note that these patterns and designs may be formed alone or in combination of two or more. Also, there may be a case where the printing layer 3 is not provided in terms of design expression.

[0017] Examples of the printing method include gravure printing, screen printing, flexographic printing, letterpress printing, and inkjet printing.

[0018] Further, the ink used for the printing layer 3 contains a binder resin and a colorant. Examples of the binder resin include acrylic resin, vinyl chloride-vinyl acetate copolymer, chlorinated polypropylene, polyester resin, cellulose-based resin, and urethane-based resin. Examples of the colorant include inorganic pigments such as titanium white, zinc white, carbon black, iron black, vegetable pattern, chrome vermilion, ultramarine blue, cobalt blue, lead yellow, and titanium yellow, organic pigments such as phthalocyanine blue, indanthrene blue, isoindolinone yellow, benzidine yellow, quinacridone red, polyazo red, perylene red, and aniline black, and pearlescent pigments such as flaky foil powder of aluminum and brass. Note that these colorants can be used alone or in combination of two or more.

[0019] In addition, the ink used for the printing layer 3 may contain additives such as ultraviolet absorbers, light stabilizers, antioxidants, antistatic agents, plasticizers, lubricants, and fillers, if necessary. The thickness of the printing layer 3 is preferably 0.1 to 10 μm.

[0020] <Surface layer> The surface layer 4 is formed of an acrylic resin. By using an acrylic resin as the material for forming the surface layer 4, a surface with high transparency and excellent weather resistance can be obtained.

[0021] As the acrylic resin, an acrylic and methacrylic copolymer can be used. The monomers forming the acrylic and methacrylic copolymer are not particularly limited, and examples include methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, and the like. These monomers can be used alone or in combination of two or more. The blending ratio of these monomers is not particularly limited and can be appropriately set within a range that does not impair the effects of the present invention.

[0022] In addition, a fluorine acrylic resin can be used as the acrylic resin for forming the surface layer 4. Examples of the fluorine acrylic resin include a fluorine acrylic resin composed of polyvinylidene fluoride resin and acrylic resin, poly(hexafluorobutyl methacrylate), and the like.

[0023] Alternatively, a commercially available acrylic resin film may be used for the surface layer 4. Examples of commercially available acrylic resin films include Acryblen HBS027 manufactured by Mitsubishi Chemical Corporation. Examples of commercially available fluorine acrylic resin films include Acryblen FBS006 manufactured by Mitsubishi Chemical Corporation, KFC Film FT-30Z (or FT-50Y) manufactured by Kuraray Co., Ltd., and DX Film 14S manufactured by Denka Co., Ltd.

[0024] The thickness of the surface layer 4 is not particularly limited, but is preferably 10 to 80 μm, more preferably 20 to 60 μm. If the thickness of the surface layer 4 is 10 μm or more, the stain resistance, solvent resistance, and chemical resistance can be sufficiently improved. Further, if the thickness of the surface layer 4 is 20 μm or more, the solvent resistance and chemical resistance can be further improved. Also, if the thickness of the surface layer 4 is 80 μm or less, it can be used as a sheet with excellent three-dimensional formability, and if it is 60 μm or less, the three-dimensional formability is more excellent.

[0025] Here, in the decorative sheet 1 of the present invention, in a semi-logarithmic graph shown in FIG. 2 with the vertical axis being the common logarithm (logarithm with base 10) of the storage elastic modulus E’ [MPa] of the decorative sheet 1 and the horizontal axis being the temperature T [K] of the decorative sheet 1, it is characterized in that the slope a of the straight line connecting two points plotted with the storage elastic modulus E’ (common logarithm) at 328.15 K and the storage elastic modulus E’ (common logarithm) at 338.15 K is -0.05 or more and -0.02 or less.

[0026] This is because when the value of the slope a is greater than -0.02, the time required to reach the viscoelasticity suitable for processing the decorative sheet during heating becomes longer, so the heat stretchability (flexibility) of the decorative sheet is not sufficiently improved in a short time, and the workability may decrease. When the value of the slope a is less than -0.05, the decorative sheet softens rapidly during heating, so the embossed shape (concave-convex shape) and gloss change on the surface of the decorative sheet may occur, and the workability may decrease.

[0027] That is, in the decorative sheet 1 of the present invention, since the slope a is -0.05 or more and -0.02 or less, when the decorative sheet is heated and the decorative sheet is attached to an object to be constructed such as an entrance door, rapid softening of the decorative sheet 1 can be prevented, and the heat stretchability of the decorative sheet 1 can be improved in a short time. Therefore, it becomes possible to easily deform the decorative sheet while heating it corresponding to the shape of the object to be constructed by heating for a short time. As a result, it becomes possible to obtain a decorative sheet with excellent workability that does not depend on the difference in skill level of the operator or the temperature at the time of construction.

[0028] Note that, as shown in the semi-logarithmic graph in FIG. 2, the following equation (1) holds between the storage elastic modulus E’ (common logarithm) [-] of the cosmetic sheet 1 and the temperature T [K] of the cosmetic sheet 1.

[0029] [Equation 1] log 10 E’ = aT + C (1)

[0030] Here, a is the slope described above, T [K] is the heating temperature of the cosmetic sheet, and 328.15 ≤ T ≤ 338.15. The heating temperature T of the cosmetic sheet is set to be 328.15 K (55 °C) or higher and 338.15 K (65 °C) or lower because when it is less than 328.15 K, it is difficult to heat and soften the cosmetic sheet due to the low heating temperature, and the workability may decrease, and when it is higher than 338.15 K, the cosmetic sheet softens rapidly during heating, so the embossed shape (concave-convex shape) on the surface of the cosmetic sheet may disappear or the gloss may change, and the workability may decrease.

[0031] Also, C is the intercept of the semi-logarithmic graph in FIG. 2 and is a value calculated by the following equation (2).

[0032] [Equation 2] C = log 10 E’ 338.15 -[(E’ 338.15 - E’ 328.15 ) / (338.15 - 328.15)] × 338.15 (2)

[0033] Note that E’ 328.15 is the storage elastic modulus E’ [MPa] of the cosmetic sheet at 328.15 K, and E’ 338.15 is the storage elastic modulus E’ [MPa] of the cosmetic sheet at 338.15 K.

[0034] Also, the above “storage elastic modulus” refers to the value measured using a dynamic viscoelasticity measuring device in accordance with JIS-K7244-4.

[0035] <Manufacturing Method> Next, an example of the manufacturing method of the cosmetic sheet 1 of the present invention will be described.

[0036] When manufacturing the cosmetic sheet 1 of the present invention, first, a base material 2 made of a resin sheet containing the above-mentioned polyvinyl chloride resin is prepared. This resin sheet may be a commercially available one, or one manufactured by a known manufacturing method such as a calendering method or an extrusion molding method may be used.

[0037] Alternatively, after mixing the polyvinyl chloride resin and, if necessary, the above-mentioned plasticizer and colorant in a predetermined blending ratio to obtain a resin mixture for forming the base material, one manufactured by a known manufacturing method such as a calendering method or an extrusion molding method may be used.

[0038] Next, a printing layer 3 is formed by applying a predetermined amount of gravure printing ink onto the surface 2a of the base material 2 by the gravure printing method.

[0039] Next, an acrylic resin film for forming the surface layer 4 is prepared, and the printing layer 3 and the acrylic resin film are laminated, and the printing layer 3 and the acrylic resin film are bonded together by the thermal lamination method, so that the printing layer 3 and the surface layer 4 are adhered, and a cosmetic sheet 1 which is a laminate in which the base material 2, the printing layer 3 provided on the surface 2a of the base material 2, and the surface layer 4 provided on the surface 3a of the printing layer 3 are laminated is obtained.

[0040] Note that instead of the above-mentioned acrylic resin film, a configuration may be adopted in which a gravure coater is used to apply and cure an acrylic coating liquid for forming the surface layer on the surface 3a of the printing layer 3 to form the surface layer 4.

[0041] <Other Forms> In the above-described embodiments, a decorative sheet having a three-layer structure laminated in the order of a base material / a printing layer / a surface layer has been described as an example. However, the decorative sheet having a multilayer structure of the present invention only needs to be provided with the above-described base material 2 and the surface layer 4, and is not limited to a three-layer structure. For example, it may be a decorative sheet having a two-layer structure laminated in the order of a base material / a surface layer. In this case, a surface layer 4 may be formed by applying an acrylic coating liquid for forming a surface layer on the surface 2a of the base material 2 using a gravure coater and curing it. Further, these decorative sheets may be embossed.

Example

[0042] Hereinafter, the present invention will be described based on examples. Note that the present invention is not limited to these examples, and these examples can be modified and changed based on the gist of the present invention, and they are not excluded from the scope of the present invention.

[0043] The materials used for producing the decorative sheet are shown below. (1) Colored PVC resin (a resin obtained by adding a coloring pigment to a polyvinyl chloride resin (manufactured by Shin-Etsu Chemical Co., Ltd., trade name: ZEST 1000Z), which is the main component) (2) Colored PET-G resin (a resin obtained by adding a coloring pigment to a glycol-modified polyethylene terephthalate resin (manufactured by Eastman Chemical Company, trade name: GN071), which is the main component) (3) Plasticizer (diisononyl phthalate, manufactured by J Plus, trade name: DINP) (4) Gravure printing ink (acrylic-vinyl chloride-vinyl acetate-based ink, manufactured by Showa Ink Co., Ltd.) (5) Fluorine acrylic resin film-1 (manufactured by Kuraray Co., Ltd., trade name: KFC film FT-30Z, thickness: 30 μm) (6) Fluorine acrylic resin film-2 (manufactured by Kuraray Co., Ltd., trade name: KFC film FT-50Y, thickness: 50 μm) (7) Acrylic coating liquid (manufactured by DIC Graphics Co., Ltd., trade name: UM No. 15) (8) Acrylic resin film (manufactured by Mitsubishi Chemical Corporation, trade name: Acryblen HBS027, thickness: 50 μm) (9) Transparent PVC resin (transparent polyvinyl chloride resin, manufactured by Shin-Etsu Chemical Co., Ltd., trade name: ZEST 1000Z)

[0044] (Example 1) <Production of decorative film> First, the colored PVC resin shown in Table 1 and the plasticizer were mixed to prepare a resin mixture for forming a base material having the composition (parts by mass) shown in Table 1. Next, this resin mixture was melt-kneaded at 180 °C and formed into a sheet shape by the calender method to obtain a white-colored base material having the thickness shown in Table 1.

[0045] Next, on the surface of the base material, the above-described gravure printing ink was applied by the gravure printing method at a coating amount of 35 g / m 2 to form a printing layer having a thickness of 4 μm.

[0046] Next, a fluorine acrylic resin film - 1 for forming a surface layer shown in Table 1 was prepared, and the printing layer and the fluorine acrylic resin film - 1 were laminated so that the printing layer and the fluorine acrylic resin film - 1 faced each other. By the thermal lamination method using a thermal laminator (speed: 1.0 m / min, thermal rubber roll temperature: 170 °C, pressure: 5 kg / cm), the printing layer and the fluorine acrylic resin film - 1 were bonded together to bond the printing layer and the surface layer, and a decorative sheet of this example in which the base material, the printing layer provided on the surface of the base material, and the surface layer provided on the surface of the printing layer were laminated was produced.

[0047] <Measurement of storage elastic modulus (E’)> The produced decorative sheet was cut to obtain a sample for measurement having dimensions of length 50 mm, width 4 mm, and thickness 0.16 mm.

[0048] Next, in accordance with JIS-K7244-4, using a dynamic viscoelasticity measuring device (manufactured by TA Instruments, product name: DMA-Q800), a sample for measurement was attached to the measuring device so that the distance between the chucks was 20 mm. Under the conditions of a starting temperature of 30°C, an ending temperature of 140°C, a heating rate of 3°C / min, a strain of 0.1%, a frequency of 1 Hz, a load track of 125%, and an amplitude of 15 μm, the storage elastic modulus (E') of the sample for measurement at 55°C (328.15 K) and 65°C (338.15 K) was measured. The above results are shown in Table 1.

[0049] In addition, a semi-logarithmic graph with the vertical axis being the common logarithm (logarithm with base 10) of the storage elastic modulus E' [MPa] of the cosmetic sheet and the horizontal axis being the temperature T [K] of the cosmetic sheet 1 is shown in FIG. 3. In the semi-logarithmic graph, the values of the slope a and the intercept C of the straight line connecting two points plotted with the storage elastic modulus E' (common logarithm) at 328.15 K and the storage elastic modulus (common logarithm) at 338.15 K are shown in Table 1.

[0050] <Workability evaluation> First, as an object to which the cosmetic sheet is to be pasted, a press steel plate 10 shown in FIG. 4 (a press steel plate with a length L of 600 mm, a width W of 600 mm, and a thickness of 1.6 mm, having, in the direction of the width W, convex portions 11 with a length of 400 mm, a depth of 5 mm, and a width of 6.5 mm, convex portions 12 with a length of 400 mm, a depth of 5 mm, and a width of 50 mm, concave portions 13 with a length of 400 mm, a depth of 5 mm, and a width of 20 mm, and concave portions 14 with a length of 400 mm, a depth of 5 mm, and a width of 10 mm at intervals of 100 mm) was prepared.

[0051] Next, a heat gun (temperature: 50 to 300°C) was prepared. With the heat gun separated from the cosmetic sheet by about 50 to 100 mm, the cosmetic sheet was heated by the heat gun to make it soft, and the softened cosmetic sheet was pasted onto the press steel plate 10 having the above-described grooves 11 to 14 using a squeegee.

[0052] Then, the workability of the cosmetic sheet with respect to the press steel plate was evaluated according to the following evaluation criteria. The above results are shown in Table 1.

[0053] ◎: Excellent workability (the time until the decorative sheet becomes soft is less than 10 seconds, excellent heat stretchability, and with a very short heating time, it is possible to easily deform the decorative sheet according to the shape of the pressed steel sheet) ○: Good workability (the time until the decorative sheet becomes soft is 10 seconds or more and less than 20 seconds, good heat stretchability, and with a short heating time, it is possible to easily deform the decorative sheet according to the shape of the pressed steel sheet) ×: Poor workability (the time until the decorative sheet becomes soft is 20 seconds or more, poor heat stretchability, and it is difficult to deform the decorative sheet according to the shape of the pressed steel sheet with a short heating time, or the decorative sheet rapidly softens and melts, making construction impossible)

[0054] (Example 2) A decorative sheet was produced in the same manner as in Example 1 above, except that the thickness of the base material was changed, the content of the plasticizer in the base material was changed, and the fluorine acrylic resin film - 1 forming the surface layer was changed to a fluorine acrylic resin film - 2. The storage elastic modulus (E') was measured and the workability was evaluated. The above results are shown in Table 1 and FIG. 3.

[0055] (Example 3) First, a polyvinyl chloride resin and a plasticizer shown in Table 1 were mixed to prepare a resin mixture for forming a base material having the composition (parts by mass) shown in Table 1. Next, this resin mixture was melt-kneaded at 180°C and formed into a sheet shape by the calender method to obtain a white-colored base material having the thickness shown in Table 1.

[0056] Next, the above-described acrylic coating liquid for forming the surface layer was applied to the surface of the base material by a gravure coater at a coating amount of 20 g / m 2 and heat-cured at 70°C to form a surface layer having a thickness of 6 μm, and a decorative sheet of this example, which is a laminate in which the base material and the surface layer provided on the surface of the base material are laminated, was produced.

[0057] Then, a cosmetic sheet was produced in the same manner as in Example 1 described above, and the storage elastic modulus (E') was measured and the workability was evaluated. The above results are shown in Table 1 and FIG. 3.

[0058] (Example 4) A cosmetic sheet was produced in the same manner as in Example 1 described above, except that the fluorine acrylic resin film - 1 forming the surface layer was changed to an acrylic resin film, and the storage elastic modulus (E') was measured and the workability was evaluated. The above results are shown in Table 1 and FIG. 3.

[0059] (Comparative Example 1) A cosmetic sheet was produced in the same manner as in Example 1 described above, except that the thickness of the base material was changed, the content of the plasticizer in the base material was changed, and the printing layer and the surface layer were not formed, and the storage elastic modulus (E') was measured and the workability was evaluated. The above results are shown in Table 1 and FIG. 3.

[0060] (Comparative Example 2) (Production of Cosmetic Film) First, using the colored PET - G resin (100 parts by mass) shown in Table 1, a resin for forming the base material of Comparative Example 2 was prepared. Next, using an extruder equipped with a T - die, this colored PET - G resin was extruded at a temperature of 240°C to produce a cosmetic sheet composed only of a white - colored base material having the thickness shown in Table 1.

[0061] Then, a cosmetic sheet was produced in the same manner as in Example 1 described above, and the storage elastic modulus (E') was measured and the workability was evaluated. The above results are shown in Table 1 and FIG. 3.

[0062] (Comparative Example 3) First, a resin mixture for forming the base material having the composition (parts by mass) shown in Table 1 was prepared by mixing the colored PVC resin and the plasticizer shown in Table 1. Next, this resin mixture was melt - kneaded at 180°C and formed into a sheet shape by the calender method to obtain a white - colored base material having the thickness shown in Table 2.

[0063] Next, on the surface of the base material, by the gravure printing method, gravure printing ink was applied at 35 g / m2 It was applied with the coating amount of

[0064] Next, the transparent PVC resin and the plasticizer shown in Table 2 were mixed to prepare a resin mixture for forming a surface layer having the composition (parts by mass) shown in Table 2. Next, this resin mixture was melt-kneaded at 180° C. and formed into a sheet shape by a calender method to obtain a transparent film for a surface layer having the thickness shown in Table 2.

[0065] Next, the printed layer and the transparent film were laminated so that the printed layer and the produced transparent film faced each other, and the printed layer and the transparent film were bonded together by a thermal lamination method using a thermal laminator (speed: 1.8 m / min, thermal rubber roll temperature: 170° C., pressure: 5 kg / cm) to bond the printed layer and the surface layer, and a decorative sheet of this comparative example in which a base material, a printed layer provided on the surface of the base material, and a surface layer provided on the surface of the printed layer were laminated was produced.

[0066] Then, a decorative sheet was produced in the same manner as in Example 1 described above, and the storage elastic modulus (E') was measured and the workability was evaluated. The above results are shown in Table 1 and FIG. 3.

[0067]

Table 1

[0068]

Table 2

[0069] As shown in Table 1, it can be seen that the decorative sheets of Examples 1 to 4 can be easily deformed in correspondence with the shape of the press steel plate 10 which is an object to be constructed in a short heating time and are excellent in workability.

Industrial Applicability

[0070] As described above, the present invention is suitable for a decorative sheet.

Explanation of Signs

[0071] 1 Cosmetic sheet 2 Base material 3 Printing layer 4 Surface layer 10 Press steel plate 11 - 14 Grooves

Claims

1. a base material made of a resin sheet containing a polyvinyl chloride resin, and a surface layer provided on the base material and containing an acrylic resin are provided, In a semi-logarithmic graph with the vertical axis being the common logarithm (logarithm with base 10) of the storage modulus [MPa] of the decorative sheet and the horizontal axis being the temperature [K] of the decorative sheet, the slope of the straight line connecting two points plotted with the storage modulus (common logarithm) at 328.15 K and the storage modulus (common logarithm) at 338.15 K is -0.05 or more and -0.02 or less. A decorative sheet characterized by this.

2. The resin sheet contains a plasticizer, and the content of the plasticizer with respect to 100 parts by mass of the polyvinyl chloride resin is 5 parts by mass or more and 25 parts by mass or less. The decorative sheet according to claim 1, characterized by this.

3. The decorative sheet according to claim 1 or claim 2, characterized in that the thickness of the base material is 80 to 170 μm.

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