JP2016168712A - Decorative sheet and decorative material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative sheet having heat shielding property and capable of preventing warpage due to infrared light.SOLUTION: There is prepared a decorative sheet 3 by laminating a printed layer 13 and two or more transparent thermoplastic resin layers 5 on a colored thermoplastic resin base material layer 11. In the transparent thermoplastic resin layers 5, an inside layer 51 is composed of an acrylic resin, the moisture permeability of a thermoplastic resin constituting an outermost layer 53 is lower than the moisture permeability of the acrylic resin. In a solid printed layer 131 of the printed layer 13, a pigment is selected from isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine and titanium oxide. In a pattern layer 132, a black color is reproduced by mixing an isoindolinone pigment, a diketopyrrolopyrrole pigment and a phthalocyanine pigment.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a decorative sheet used as a building material and a decorative material using the decorative sheet. The decorative sheet and the decorative material of the present invention are particularly suitable for use as an exterior.

A decorative sheet is used for various uses such as indoor and outdoor buildings and furniture and furniture as a building material that is inexpensive and excellent in processability. Among such decorative sheets, an exterior decorative sheet used outdoors is used by being attached to the surface of an exterior decorative steel sheet such as an entrance. The exterior decorative sheet is required to have weather resistance higher than that of the interior decorative sheet.
As decorative sheets having high weather resistance, decorative sheets using olefin-based materials are currently in practical use. The weather resistance is evaluated by actual outdoor exposure and accelerated weather resistance test. The weather resistance of a decorative sheet using an olefin-based material satisfies a practical condition. Such a decorative sheet is described in Patent Document 1, for example.

JP 2012-131112 A

However, the existing exterior decorative sheet has been evaluated for weather resistance to ultraviolet light of sunlight and has been formulated, but the weather resistance to infrared light has not been considered. In the exterior decorative sheet, heat is stored by absorbing infrared light, and expansion is caused by the stored heat being transmitted to the base material of the decorative sheet. When the base material of the decorative sheet expands, the decorative material to which the decorative sheet is bonded is warped, and the beauty of the building material and the function of protecting the building are deteriorated.
This invention is made | formed in view of such a point, and it aims at providing the decorative sheet and cosmetics which have heat insulation and can prevent the curvature by infrared light.

  In order to solve the above problems, the decorative sheet according to one aspect of the present invention has a printing layer and two or more transparent thermoplastic resin layers laminated in this order on one surface side of the colored thermoplastic resin base material layer. In the transparent thermoplastic resin layer, the inner layer which is a layer other than the outermost layer is made of an acrylic resin, and the moisture permeability of the thermoplastic resin constituting the outermost layer is lower than the moisture permeability of the acrylic resin, and the printing layer Has a solid printing layer and a pattern layer in this order from the thermoplastic resin substrate side, and the solid printing layer has pigments such as isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine. In the pattern layer, black is reproduced by mixing an isoindolinone pigment, a diketopyrrolopyrrole pigment and a phthalocyanine pigment. .

  With the above-described configuration, the present invention can provide a decorative sheet and a decorative material that have heat shielding properties and can prevent warping due to infrared light.

It is sectional drawing of the decorative material using the decorative sheet of one Embodiment of this invention, and a decorative sheet.

Hereinafter, a decorative sheet and a decorative material according to an embodiment of the present invention will be described.
(Cosmetic materials)
FIG. 1 is a cross-sectional view for explaining a decorative material 1 of the present embodiment. The decorative material 1 of the present embodiment includes a decorative sheet 3, a base material 20, and an adhesive layer 21 that bonds the decorative sheet 3 and the base material 20.
The decorative material 1 of the present embodiment increases the transmittance of the printing layer 13 with respect to infrared light having a wavelength of 0.7 μm to 1000 μm, and reflects the transmitted infrared light by the colored thermoplastic resin base material layer 11. The heat storage of the material 20 is prevented.

(Decorative sheet)
In the decorative sheet 3 of the present embodiment, a printed layer 13 on which a pattern is printed and two or more transparent thermoplastic resin layers 51 and 53 are laminated in this order on one surface side of the colored thermoplastic resin base material layer 11. It has been done. That is, the decorative sheet 3 has a colored thermoplastic resin base material layer 11, a printing layer 13, a heat seal layer 15, and a transparent thermoplastic resin layer 5. The transparent thermoplastic resin layer 5 is composed of two or more layers including an outermost layer 53 and an inner layer 51 positioned below the outermost layer 53.

Hereinafter, each layer of the decorative sheet 3 will be described.
<Colored thermoplastic resin base material layer>
The colored thermoplastic resin substrate layer 11 is a thermoplastic resin substrate layer such as a colored base film layer. Examples of the thermoplastic resin used for the colored thermoplastic resin base material layer 11 include polyolefin resins such as polyethylene, polypropylene, polybutene, and polymethylpentene, ethylene-vinyl acetate copolymer or a saponified product thereof, and ethylene- (meth). Polyolefin copolymers such as acrylic acid (ester) copolymers, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyarylate, polycarbonate, copolymer polyester (typically 1,4-cyclohexanedimethanol copolymer polyethylene) Polyester resins such as terephthalate resin, commonly known as PET-G), acrylic resins such as polymethyl methacrylate, polyamide resins such as 6-nylon, 6,6-nylon, 6,10-nylon, 12-nylon Styrene resins such as polystyrene, AS resin, ABS resin, cellulose derivatives, cellulose derivatives such as nitrocellulose, chlorine resins such as polyvinyl chloride and polyvinylidene chloride, polyvinyl fluoride, polyvinylidene fluoride, polytetrafluoroethylene, Fluorine resins such as ethylene-tetrafluoroethylene copolymer, or two or more types of copolymers or mixtures selected from these, mixtures, composites, laminates, and the like can be used.

As described above, the colored thermoplastic resin base material layer 11 contains a colorant to conceal the surface of the base material 20 or the like to which the decorative sheet 3 is bonded, but is not particularly limited thereto. Alternatively, a masking layer (not shown) may be provided on the front surface or the back surface, or a pigment may be solid printed.
In addition to the colorant, the colored thermoplastic resin base material layer 11 includes a filler (silica, talc, titanium oxide, barium sulfate, etc.), an ultraviolet absorber, a light stabilizer, a heat stabilizer, an antioxidant, an antistatic agent, One or more selected from various additives such as lubricants (stearic acid, metal soap, etc.), flame retardants, antibacterial agents, antifungal agents, antifriction agents, light scattering agents, gloss adjusting agents, etc. may be added. .

Moreover, in this embodiment, in order to raise the reflectance of the infrared light in the colored thermoplastic resin base material layer 11, you may add a titanium oxide to the said material, and you may make it contain in the colored thermoplastic resin base material layer 11. FIG. At this time, in this embodiment, when the colored thermoplastic resin base material layer 11 contains 23 parts by mass or more of titanium oxide, the heat shielding property is improved. When titanium oxide is used as the concealing layer, the total content of titanium oxide as the concealing layer and added titanium oxide may be 23 parts by mass or more. Moreover, when the coloring thermoplastic resin base material layer 11 contains 23 mass parts or more of titanium oxide as a concealing layer, it is not necessary to add titanium oxide any more.
However, when the amount of titanium oxide added to the colored thermoplastic resin substrate layer 11 increases, the titanium oxide affects the film quality of the colored thermoplastic resin substrate layer 11. For this reason, suitable content of the titanium oxide of the colored thermoplastic resin base material layer 11 is 23 to 40 mass parts.

  In the present embodiment, as shown in FIG. 1, a titanium oxide layer 111 may be provided by applying titanium oxide to the surface of the colored thermoplastic resin base material layer 11 on the printed layer 13 side. Even when the titanium oxide layer 111 is provided, if the colored thermoplastic resin base material layer 11 contains 23 parts by mass or more of titanium oxide by the titanium oxide layer 111, the base material 20 by the colored thermoplastic resin base material layer 11 is used. Improves heat insulation. Under such conditions, the thickness of the titanium oxide layer 111 is preferably 5 μm to 10 μm.

The thickness of the colored thermoplastic resin base material layer 11 is preferably 80 μm to 110 μm, but is not limited to this, and is appropriately adjusted depending on the thickness of other resin layers and the constituent materials.
As a molding method of the colored thermoplastic resin base material layer 11, for example, an extrusion molding method, an inflation molding method, a calendar molding method, a cast molding method, or the like can be used.

<Print layer>
The printing layer 13 of the present embodiment is provided by gravure printing or the like using an ink using a pigment. The printing layer 13 of this embodiment includes a solid printing layer 131 and a pattern layer 132. The solid print layer 131 is a print layer without a pattern, and the picture layer 132 is a layer for applying an arbitrary pattern to the decorative sheet 3. Examples of the pattern include a wood grain pattern, a stone pattern, a cloth pattern, an abstract pattern, and a geometric pattern. Further, when the design is merely colored or color-adjusted, it may be a solid color. As the pattern of the pattern layer 132, an arbitrary pattern can be adopted according to the use of the decorative sheet 3.

In addition, the solid print layer and the pattern layer 132 may be either a single layer or a laminate of a plurality of layers.
The ink used for the solid print layer 131 and the pattern layer 132 may be any ink that can be printed on the colored thermoplastic resin base material layer 11. Specifically, the colored thermoplastic resin base material layer 11 is a random polypropylene type. If it is resin, the mixture of urethane resin and vinyl chloride = vinyl acetate copolymer resin is used suitably.

  In the present embodiment, a pigment selected from isoindolinone, disazo, polyazo, diketopyrrolopyrrole, quinacridone, phthalocyanine, and titanium oxide is used as a pigment for the solid print layer 131. In addition, when the solid print layer 131 is provided and the pattern layer 132 represents, for example, a wood conduit, a black pigment is not used, but a black color is obtained by mixing isoindolinone, diketopyrrolopyrrole, and phthalocyanine pigment. To reproduce.

With this configuration, the present embodiment obtains a deep design by combining the pattern layer 132 with the solid print layer 131, suppresses color change over time, and makes the reflectance in the infrared region more than a certain level. It is possible to raise.
The inventors of the present invention printed a wood grain pattern on the solid print layer 131 as described above, and measured the total infrared light transmittance of the print layer 13. According to this measurement, the transmittance of light having a wavelength of 0.781 μm to 2.5 μm was 40% or more.

In addition, for the printing layer 13, for example, extender pigments, plasticizers, dispersants, surfactants, tackifiers, adhesion assistants, drying agents, heat stabilizers, weathering stabilizers, curing agents, curing accelerators. Various additives such as an agent or a curing retarder can be appropriately added.
The method for forming the printing layer 13 is not particularly limited, and various known printing methods such as a gravure printing method, an offset printing method, a screen printing method, a flexographic printing method, an electrostatic printing method, and an ink jet printing method are used. be able to. In addition, for example, in the case of a solid surface, in addition to the above-described various printing methods, for example, roll coating method, knife coating method, air knife coating method, die coating method, lip coating method, comma coating method, kiss coating method, flow coating method Various coating methods such as a dip coating method can also be used. In addition, for example, the hand-drawn method, the ink sink method, the photographic method, the laser beam or electron beam drawing method, the partial vapor deposition method of metal or the like, the etching method, etc., or a combination of these methods can of course be performed.
Further, prior to the formation of the printing layer 13, if necessary, the surface of the colored thermoplastic resin substrate layer 11 is treated with, for example, corona treatment, ozone treatment, plasma treatment, ionizing radiation treatment, dichromate treatment, anchor or primer treatment, etc. By performing this surface treatment, the adhesion between the colored thermoplastic resin base material layer 11 and the printing layer 13 can be improved.

<Heat seal layer>
The heat seal layer 15 is appropriately used when the colored thermoplastic resin base material layer 11 and the transparent thermoplastic resin layer 5 are firmly bonded. Although it is not necessary when the colored thermoplastic resin base layer 11 and the transparent thermoplastic resin layer 5 have adhesiveness, it is preferably used for increasing the interlayer strength. As the heat sealant used for the heat seal layer 15, an acrylic-polyester-vinyl acetate resin is suitable. However, the heat seal layer 15 of the present embodiment is not particularly limited to the acrylic-polyester-vinyl acetate resin.

<Transparent thermoplastic resin layer>
As described above, the transparent thermoplastic resin layer 5 of the present embodiment has a two-layer structure of the outermost layer 53 and the inner layer 51. As the inner layer 51, an acrylic resin is used. Specifically, for the inner layer 51, a methyl methacrylate resin, a polymethyl methacrylate resin (Tg is about −20 ° C.), or the like can be used. The thickness of the inner layer 51 is preferably in the range of 85% to 90% in terms of weather resistance, with respect to the total thickness of the transparent thermoplastic resin layer 5. Further, a known ultraviolet absorber may be added to the inner layer 51.

For the outermost layer 53 of this embodiment, a resin having a moisture permeability lower than the moisture permeability of the acrylic resin used for the inner layer 51 is used. In consideration of various resistances on the surface of the outermost layer 53, a fluororesin is preferably used for the outermost layer 53.
Specifically, as the material of the outermost layer 53, polyvinylidene fluoride (PVDF), tetrafluoroethylene resin (PTFE), tetrafluoroethylene perfluoroalkoxy vinyl ether copolymer (PFA), tetrafluoroethylene / hexafluoride Propylene copolymer (FEP), polychlorotrifluoroethylene (PCTFE), tetrafluoroethylene / ethylene copolymer (ETFE), chlorotrifluoroethylene / ethylene copolymer (ECTFE), polyvinyl fluoride (PVF), etc. Polyvinylidene fluoride (PVDF Tg is −39 ° C.) is particularly preferable in terms of bending whitening and adhesion to the acrylic resin layer.
Moreover, it is suitable from the point of a weather resistance that the outermost layer 53 contains a water | moisture content in the range used as 5%-15% with respect to the total thickness of the transparent thermoplastic resin layer 5. FIG.
The total thickness of the outermost layer 53 and the inner layer 51 of the transparent thermoplastic resin layer 5 is desirably 20 μm to 80 μm, and particularly preferably 30 μm to 60 μm from the viewpoint of weather resistance.

(Base material)
The base material 20 is used by attaching (laminating) the decorative sheet 3 to the surface. The base material 20 includes various materials such as a metal base material and a wood base material. An example of the metal base material is an Alpolic material. The Alpolic material is an aluminum resin composite plate in which a resin material is sandwiched between metal plates that have been subjected to surface processing such as painting or mirror finishing. As the metal plate, aluminum, galvalume steel plate, stainless steel, titanium or the like is used. As the resin material, polyethylene alone or a material obtained by adding an inorganic material to polyethylene is used.
Moreover, as a wood-type base material, MDF (medium density fiberboard), a plywood, a particle board etc. are used, for example.

(Adhesive layer)
Any adhesive layer 21 may be used as long as it is a known adhesive used for bonding a decorative sheet and a substrate. In the present embodiment, for example, the adhesive layer 21 can be formed using a reactive hot-melt adhesive. In particular, the adhesive layer 21 may be formed using a two-component polyurethane adhesive among reactive hot-melt adhesives. Among such adhesive layers 21, in this embodiment, it is particularly preferable to use a member that has been certified non-combustible according to the regulations of the Japan Wallcovering Association.
The adhesive layer 21 may contain an ultraviolet absorber or a light stabilizer. The thickness of the adhesive layer 21 is preferably about 5 μm to 50 μm.

  According to the present embodiment described above, since the isoindolinone pigment, diketopyrrolopyrrole pigment and phthalocyanine pigment are mixed to represent black, no black pigment is used in the printing layer. For this reason, in this embodiment, the light transmittance in the printed layer is higher than that of the existing decorative sheet. Since the infrared light transmitted through the printing layer 13 is reflected by the colored thermoplastic resin base material layer 11, heat is not transmitted to the base material 20, and heat storage of the base material 20 can be prevented. And by preventing the heat storage of the base material 20, it is possible to obtain a cosmetic material 1 that is less likely to be warped by sunlight even when used outdoors.

  Further, in the present embodiment, the moisture permeability of the transparent thermoplastic resin layer of the outermost layer 53 is lower than the moisture permeability of the acrylic resin of the inner layer 51, so that makeup can be applied in addition to the weather resistance of the acrylic resin. The moisture content on the surface of the sheet 3 is suppressed. Accordingly, in the present embodiment, the decorative sheet can be made to be free from chalking whitening or crack whitening even in a long-term weather resistance test.

The embodiment described above exemplifies a configuration for embodying the technical idea of the present invention, and the technical idea of the present invention is based on the material, shape, structure, arrangement, etc. of the component parts. It is not specific to the above. The technical idea of the present invention can be variously modified within the technical scope defined by the claims described in the claims.
In addition, it should be noted that the drawings in the embodiments are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in consideration of the above description.

Next, examples of the present invention will be described.
[Example 1]
In Example 1, 3 parts by mass of a hindered phenol antioxidant, 1 part by mass of an ultraviolet absorber, 1 part by mass of a hindered amine light stabilizer, 23 parts by mass of titanium oxide are added to 100 parts by mass of a polypropylene resin, and the thickness is 70 μm. A colored thermoplastic resin substrate layer was formed.

  Next, in Example 1, a solid printing layer was formed on the surface of the colored thermoplastic resin base material layer. The solid printing layer ink is a mixture of urethane resin and vinyl chloride = vinyl acetate copolymer resin in a ratio of 7: 3, and hexamethylene diisocyanate and isophorone diisocyanate as a curing agent in a ratio of 2: 8. 3 parts by mass of the product was added, and 5.3 parts by mass of isoindolinone, 2.4 parts by mass of polyazo, and 1.7 parts by mass of phthalocyanine were added as pigments. The solid print layer is formed by printing such an ink on the entire surface of the colored thermoplastic resin base material layer.

  Next, in Example 1, the first layer of the pattern layer was printed on the surface of the solid print layer. The ink of the first layer of the pattern layer is a mixture of urethane resin and vinyl chloride = vinyl acetate copolymer resin at a ratio of 7: 3, and hexamethylene diisocyanate and isophorone diisocyanate as a curing agent in a ratio of 2: 8. It was manufactured by adding 3 parts by mass of a mixture mixed at a ratio, and adding 6.0 parts by mass of polyazo and 3.1 parts by mass of phthalocyanine as pigments. The first layer of the pattern layer is for printing the bark portion of the wood grain pattern.

  Next, in Example 1, the second layer of the pattern layer was printed. The ink of the second layer of the pattern layer is a mixture of urethane resin and vinyl chloride = vinyl acetate copolymer resin in a ratio of 7: 3, and hexamethylene diisocyanate and isophorone diisocyanate as a curing agent in a ratio of 2: 8. It was manufactured by adding 3 parts by mass of the mixture in a proportion and adding 2.4 parts by mass of isoindolinone, 5.2 parts by mass of polyazo, and 2.7 parts by mass of phthalocyanine as pigments. The second layer of the pattern layer is for printing the bark portion of the wood grain pattern.

  Next, in Example 1, the third layer of the pattern layer was printed. The ink of the third layer of the pattern layer is a mixture of urethane resin and vinyl chloride = vinyl acetate copolymer resin in a ratio of 7: 3, and hexamethylene diisocyanate and isophorone diisocyanate as a curing agent in a ratio of 2: 8. It was manufactured by adding 3 parts by weight of the mixture in a proportion and adding 3.2 parts by weight of isoindolinone, 4.9 parts by weight of polyazo, and 3.0 parts by weight of phthalocyanine as pigments. The third layer of the pattern layer is to print a wood-patterned conduit portion.

Further, in Example 1, a heat seal layer was formed on the print layer. The heat seal layer is formed by applying an acrylic-polyester-vinyl chloride thermal adhesive resin (acrylic / polyester / vinyl chloride = 30/30/30) to a coating amount of 1.5 g / m ² after drying. It was done by coating by gravure coating method.

Next, in Example 1, a transparent thermoplastic resin layer serving as an outermost layer and a transparent thermoplastic resin layer serving as an inner layer were extruded onto a heat sheet layer and laminated to obtain a decorative sheet. For the outermost layer, a polyvinylidene fluoride resin having a thickness of 5 μm and a moisture permeability of 5.0 g / m ² · 24 h (according to JIS-K-7129-1992) is used, and as the transparent thermoplastic resin layer of the inner layer, the thickness is A methyl methacrylate resin of 45 μm and moisture permeability of 200 g / m ² · 24 h (according to JIS-K-7129-1992) was used. The outermost layer and the inner layer were laminated with the heat sheet layer at the same time as forming as a two-layer sheet by melt extrusion.

[Example 2]
In Example 2, a decorative sheet was prepared by changing only the material of the colored thermoplastic resin substrate layer among the preparation conditions of the decorative sheet of Example 1. In Example 2, a colored thermoplastic resin base material layer was produced using 100 parts by mass of polyethylene resin instead of 100 parts by mass of polypropylene resin.
[Example 3]
In Example 3, a decorative sheet was prepared by changing only the pigment of the colored thermoplastic resin substrate layer among the preparation conditions of the decorative sheet of Example 1. In Example 3, 2 parts by mass of diketopyrrolopyrrole, 2 parts by mass of quinacridone, 1 part by mass of phthalocyanine and 23 parts by mass of titanium oxide were added to 100 parts by mass of polypropylene resin to prepare a colored thermoplastic resin base material layer.

[Comparative example]
In the comparative example, only the condition of the black pigment used for the printed layer of Example 1 was changed to prepare a decorative sheet. The decorative sheet of the comparative example was produced using an ink using carbon black as a black pigment.
[Evaluation]
The inventors of the present invention evaluated the heat shielding performance, the heat storage performance, and the weather resistance of Example 1, Example 2, Example 3, and Comparative Example, respectively.

<Weatherability>
The inventors of the present invention evaluated the accelerated weather resistance of a decorative sheet using a metal halide lamp type super accelerated weather resistance tester (manufactured by Daipura Wintes Co., Ltd.). The test was performed under the conditions of a metal halide lamp irradiance of 650 W / m ² and a black panel temperature (test piece temperature) of 53 ° C. And after irradiation, the case where there was no remarkable change in the test piece was evaluated as “◯”, and the case where the surface resin layer was cracked or peeled was evaluated as “x”.
Such an accelerated weather resistance test method is defined in JIS standard K5602.

<Heat insulation performance>
The inventors of the present invention measured the heat shielding performance using a method for measuring the solar reflectance of a coating film defined in JIS standard, K5602. The measurement was performed with a spectrophotometer UV3600 (product name) manufactured by Shimadzu Corporation. And according to the regulation of JIS standard K5602, if the solar reflectance of the coating film was 40% or more, it was evaluated as “◯”, and if it was 40% or less, it was evaluated as “x”.

<Heat storage performance>
In the evaluation of the heat storage performance, the inventors of the present invention bonded a decorative sheet to the surface of one side of an uncoated steel sheet having a length of 21 cm, a width of 29.7 cm, and a thickness of 0.5 mm using an adhesive. Produced. Then, a halogen sphere is installed at a position 15 cm away from the surface directly above the surface of the test piece, and the temperature of the front and back surfaces of the test piece is measured every minute while irradiating with halogen light for 120 minutes. The maximum temperature was recorded.

表１は、上記遮熱性能、蓄熱性能及び耐候性の評価をまとめて示している。表１によれば、イソインドリノン顔料、ジケトピロロピロール顔料及びフタロシアニン顔料を混色して黒色を表した実施例１、実施例２及び実施例３の化粧シートは、いずれも耐候性及び遮熱性能について「〇」の評価を得た。一方、比較例の化粧シートは、耐候性能について「〇」の評価を得たものの、遮熱性能については「×」と評価された。

Table 1 summarizes the evaluation of the heat shielding performance, the heat storage performance, and the weather resistance. According to Table 1, the decorative sheets of Example 1, Example 2 and Example 3 in which isoindolinone pigments, diketopyrrolopyrrole pigments and phthalocyanine pigments are mixed to represent black are all weatherproof and heat-insulating. The performance was evaluated as “◯”. On the other hand, although the decorative sheet of the comparative example obtained an evaluation of “◯” for the weather resistance performance, it was evaluated as “×” for the heat shielding performance.

  Regarding the heat storage performance, the test pieces of Example 1, Example 2 and Example 3 all became 61 ° C. or 62 ° C., whereas the temperature of the test piece of the comparative example rose to 71 ° C. . Such a difference is that Example 1 to Example 3 represent a black color by mixing an isoindolinone pigment, a diketopyrrolopyrrole pigment and a phthalocyanine pigment, whereas the comparative example uses carbon black as a black pigment. This is thought to have occurred because of

  The decorative base material and decorative sheet of the present invention described above are suitable for outdoor use because they do not easily warp even when exposed to sunlight.

DESCRIPTION OF SYMBOLS 1 Decorative material 3 Decorative sheet 5 Transparent thermoplastic resin layer 11 Colored thermoplastic resin base material layer 13 Print layer 15 Heat seal layer 20 Base material 21 Adhesive layer 51 Inner layer 53 Outermost layer 111 Titanium oxide layer 131 Solid print layer 132 Picture layer

Claims (5)

On one surface side of the colored thermoplastic resin base material layer, a printed layer on which a pattern is printed and two or more transparent thermoplastic resin layers are laminated in this order,
The transparent thermoplastic resin layer has an inner layer made of an acrylic resin other than the outermost layer,
The moisture permeability of the thermoplastic resin constituting the outermost layer is lower than the moisture permeability of the acrylic resin,
The printing layer has a solid printing layer and a pattern layer in this order from the thermoplastic resin substrate side, and the solid printing layer has a pigment of isoindolinone, disazo, polyazo, diketopyrrolopyrrole, A decorative sheet selected from quinacridone, phthalocyanine and titanium oxide, wherein black is reproduced in the picture layer by mixing an isoindolinone pigment, a diketopyrrolopyrrole pigment and a phthalocyanine pigment.   The decorative sheet according to claim 1, wherein the transparent thermoplastic resin layer contained in the outermost layer is made of a fluororesin.   The decorative sheet according to claim 2, wherein the fluororesin is a polyvinylidene fluoride resin.   The colored thermoplastic resin base material layer has a film made of a paint using titanium oxide as a pigment on the surface on the side of the printing layer, or contains titanium oxide as a pigment. The decorative sheet according to any one of the above.   A decorative material comprising the decorative sheet according to any one of claims 1 to 4 bonded to a base material.

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