WO2019065801A1 - 化粧シート及びこれを用いた化粧材 - Google Patents
化粧シート及びこれを用いた化粧材 Download PDFInfo
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- WO2019065801A1 WO2019065801A1 PCT/JP2018/035839 JP2018035839W WO2019065801A1 WO 2019065801 A1 WO2019065801 A1 WO 2019065801A1 JP 2018035839 W JP2018035839 W JP 2018035839W WO 2019065801 A1 WO2019065801 A1 WO 2019065801A1
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- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B2001/7691—Heat reflecting layers or coatings
Definitions
- the present invention relates to a cosmetic sheet and a cosmetic using the same.
- These decorative sheets may be prepared to be dark in order to impart a high-class feeling.
- a solid print layer and a pattern layer are usually formed using an ink containing carbon black which is a general-purpose black pigment.
- carbon black absorbs infrared rays
- the temperature of the decorative sheet is increased, which causes the deformation of the decorative material, the adherend, and the like. Problems such as peeling of the decorative sheet may occur. That is, the decorative sheet in which the solid printing layer and the pattern layer were formed using the ink containing carbon black had insufficient heat shielding properties.
- the technology of Patent Document 1 has been proposed.
- Patent No. 6111559 gazette
- Patent Document 1 after forming a solid print layer of wood grain pattern on a bright base material containing a pigment that reflects infrared rays such as titanium oxide, a pattern layer of a conduit pattern is formed by a black pigment comprising an azomethine azo pigment.
- a thermal insulation decorative sheet After forming a solid print layer of wood grain pattern on a bright base material containing a pigment that reflects infrared rays such as titanium oxide, a pattern layer of a conduit pattern is formed by a black pigment comprising an azomethine azo pigment.
- the azomethine azo-based pigment used in Patent Document 1 can suppress the absorption of infrared rays of black, the heat shielding properties are relatively good.
- the degree of dark color of the thermal insulation decorative sheet of Patent Document 1 is insufficient, a design with high dark color such as wood grain can not be expressed at a high level.
- the dark coloration is slightly improved by increasing the thickness of the pattern layer or adding a large amount of azomethine azo-based pigment, but in that case, printability such as blocking and back trap, weatherability, etc. deteriorate.
- printability such as blocking and back trap, weatherability, etc. deteriorate.
- the present invention has been made under such circumstances, and it is an object of the present invention to provide a decorative sheet capable of expressing a design excellent in dark color while satisfying heat shielding properties, and a cosmetic material using the same. Do.
- a decorative layer including a solid printing layer and a pattern layer is provided on a substrate having infrared reflectivity, and the solid printing layer is composed of a pigment having infrared transparency or infrared reflectivity and a binder resin.
- the decorative sheet which can express the design excellent in dark color, satisfying the heat insulation, and the cosmetic material using this can be provided.
- the decorative sheet of the present invention comprises, on a substrate having infrared reflectivity, a decorative layer including a solid printing layer and a pattern layer, and the solid printing layer comprises a pigment having infrared transparency or infrared reflectivity.
- infrared light refers to light having a wavelength of 780 to 2500 nm (so-called "near infrared light").
- FIGS. 1 and 2 are cross-sectional views showing an embodiment of the decorative sheet 100.
- the decorative sheet 100 of FIGS. 1 to 2 has a decorative layer 20 including a solid print layer 21 and a picture layer 22 on a substrate 10 having infrared reflectivity. Further, the decorative sheet 100 of FIG. 2 has a transparent resin layer 30 and a surface protective layer 40 on the decorative layer 20.
- the substrate having infrared reflectivity include those containing a binder resin and a pigment having infrared reflectivity.
- the thing of "a base material which has infrared reflectivity” may be abbreviated as a “base material” hereafter.
- thermoplastic resins such as polyolefin resin, polyester resin, polycarbonate resin, acrylonitrile-butadiene-styrene resin (hereinafter also referred to as "ABS resin"), acrylic resin, vinyl chloride resin and the like are suitably used.
- ABS resin acrylonitrile-butadiene-styrene resin
- acrylic resin vinyl chloride resin
- vinyl chloride resin vinyl chloride resin
- polyolefin resins, polyester resins, polycarbonate resins and ABS resins are preferable from the viewpoint of obtaining more excellent surface properties such as weather resistance and scratch resistance, and polyolefin resins are more preferable from the viewpoint of processability.
- the polyolefin resin is not particularly limited.
- polyethylene low density, medium density, high density
- polypropylene polymethylpentene, polybutene, ethylene-propylene copolymer, propylene-butene copolymer, ethylene-vinyl acetate
- copolymers ethylene-acrylic acid copolymers, ethylene-propylene-butene copolymers, and polyolefin thermoplastic elastomers.
- polyethylene (low density, medium density, high density) polypropylene, ethylene-propylene copolymer, and propylene-butene copolymer are preferable from the viewpoint of obtaining more excellent surface properties such as weather resistance and scratch resistance.
- a composite oxide containing manganese and at least one metal element other than manganese hereinafter sometimes referred to as "manganese-based composite oxide"
- a metal pigment a white pigment, etc.
- Inorganic pigments and the like can be mentioned.
- Aluminum, silver, brass etc. are mentioned as a metal pigment.
- white pigments include titanium oxide and the like. Specifically, titanium dioxide (TiO 2 ) is used as titanium oxide used as a white pigment, and any of rutile type, anatase type and rutile type can be used as the crystal type.
- the particle size of titanium oxide is about 0.5 to 5 ⁇ m in average particle size from the viewpoints of whiteness, hiding property, dispersibility in binder resin, film formation and printability.
- these pigments having infrared reflectivity manganese-based composite oxides and titanium oxide are preferable. That is, the substrate having infrared reflectivity is preferably a substrate containing a manganese-based composite oxide and a substrate containing titanium oxide.
- the metal element other than manganese contained in the manganese-based composite oxide is not particularly limited, and can be appropriately selected from the viewpoint of obtaining a calm design with lower lightness, the viewpoint of heat shielding, and the like.
- the metal elements other than manganese may be used alone or in combination of two or more.
- Specific examples of metal elements other than manganese include: group 2 elements such as calcium and barium; yttrium, lanthanum, praseodymium; group 3 elements such as neodymium; and group 4 elements such as titanium and zirconium; boron, aluminum, gallium And Group 13 elements such as indium; and Group 15 elements such as antimony and bismuth.
- Group 2 elements, Group 4 elements and Group 15 elements are preferable, calcium, titanium and bismuth are more preferable, and calcium and titanium are even more preferable.
- Particularly preferable specific examples of the manganese-based composite oxide include composite oxides containing manganese, calcium and titanium.
- the structure of the complex oxide containing manganese is not particularly limited, but it is a perovskite structure, an orthorhombic structure, a hexagonal structure, etc. from the viewpoint of stability as a structure, heat shielding properties and designability. Is preferable, and a perovskite structure is more preferable.
- the complex oxide containing manganese described above is described, for example, in WO 2016/125907 A1.
- a substrate containing a manganese-based composite oxide is a CIE (International Commission on Illumination) L * a * b * color system L * measured according to JIS Z8781-4: 2013 .
- the value is preferably 60 or less, more preferably 50 or less.
- the substrate containing the manganese-based composite oxide may contain a pigment having infrared reflectivity other than the manganese-based composite oxide or a pigment having infrared transparency, but the substrate containing the manganese-based composite oxide It is preferable to adjust so that the L * value of is in the above range.
- the base material containing titanium oxide has a L * value of 80 in the CIE (International Lighting Commission) L * a * b * color system, which is measured in accordance with JIS Z 8781-4: 2013. It is preferably at least 90, and more preferably at least 90.
- the upper limit of the L * value of the substrate containing titanium oxide is about 95.
- the base material containing titanium oxide may contain a pigment having infrared reflectivity other than titanium oxide or a pigment having infrared transparency, but the L * value of the base material containing titanium oxide is in the above range It is preferable to prepare as follows.
- the base material containing a manganese-type composite oxide and the base material containing titanium oxide are compared, the latter has excellent heat shielding properties and the former has excellent dark color.
- the pigment having infrared transparency or infrared reflectivity of the solid printing layer described later (A) three or more compounds selected from the group of pigments consisting of quinacridone, isoindolinone, nickel azo complex and phthalocyanine (B 2.)
- the former is superior in thermal barrier properties when compared with one or more compounds selected from the group of pigments consisting of manganese and at least one metal element other than manganese, azomethine azo compounds and perylene compounds. The dark color is superior to the latter.
- a base material containing titanium oxide as the base material from the viewpoint of balance between heat shielding and dark color at least one metal element other than (B) manganese and manganese as a pigment of the solid printing layer
- the dark color means dark color such as dark gray, deep green, vermilion, black, deep purple, red color, brown, etc. with low lightness and low color.
- the content of the pigment having infrared reflectivity in the substrate is preferably 1 part by mass or more, more preferably 3 parts by mass or more, still more preferably 5 parts by mass with respect to 100 parts by mass of the binder resin from the viewpoint of enhancing the infrared reflectivity. It is more than mass part. Further, from the viewpoint of formability of the decorative sheet, the upper limit is preferably 50 parts by mass or less, more preferably 40 parts by mass or less, still more preferably 30 parts by mass or less, and still more preferably 20 parts by mass or less.
- Additives may be blended into the substrate, if necessary.
- the additive include flame retardants, antioxidants, lubricants, foaming agents, antioxidants, ultraviolet light absorbers, light stabilizers and the like.
- organic type ultraviolet absorbers such as a benzotriazole type ultraviolet absorber, a benzophenone series ultraviolet absorber, a triazine type ultraviolet absorber, average particle diameter is 380 nm or less
- inorganic ultraviolet absorbers composed of particles of titanium oxide, iron oxide, cerium oxide or the like having a particle size of 100 nm or less can be mentioned.
- a hindered amine light stabilizer for example, a hindered amine light stabilizer is preferable, and a reactive group-containing hindered amine light stabilizer having a functional group which is an ethylenic double bond such as (meth) acryloyl group, vinyl group and allyl group, among others is preferable. Is preferably mentioned.
- hindered amine light stabilizers examples include 2,2,6,6-tetramethyl-4-piperidyl (meth) acrylate, 1,2,2,6,6-pentamethyl-4-piperidyl (meth) acrylate and the like.
- Hindered amine light stabilizers derived from various organic acids such as 6,6-tetramethylpiperidine; 1- (2-hydroxyethyl) -2,2,6,6-tetramethyl-4-piperidinol and diethyl succinate Polycondensates of 1,6-bis (2,2,6,6-tetramethyl-4-piperidylamino) hexane and 2,4-dichloro-6-morpholino- Polycondensate type hindered
- the content of the ultraviolet light absorber in the substrate is preferably 0.1 parts by mass or more, more preferably 0.2 parts by mass or more, still more preferably 0.3 parts by mass or more with respect to 100 parts by mass of the binder resin.
- the upper limit is preferably 5 parts by mass or less, more preferably 3 parts by mass or less, and still more preferably 2 parts by mass or less.
- the content of the light stabilizer in the substrate is preferably 0.5 parts by mass or more, more preferably 1 part by mass or more, still more preferably 3 parts by mass or more, with respect to 100 parts by mass of the binder resin.
- it is 10 mass parts or less, More preferably, it is 8 mass parts or less, More preferably, it is 6 mass parts or less.
- the substrate may have a single layer structure or a multilayer structure having two or more layers of the same or different types.
- the thickness of the substrate is preferably 20 ⁇ m or more, more preferably 30 ⁇ m or more, and still more preferably 40 ⁇ m or more from the viewpoint of the balance between handleability and strength.
- 200 micrometers or less are preferable, 160 micrometers or less are more preferable, and 100 micrometers or less are more preferable.
- An oxidation method is used on one side or both sides of the substrate for the purpose of improving the adhesion with other layers constituting the decorative sheet such as the decorative layer or for the purpose of enhancing the adhesion with the adherend.
- Physical surface treatment such as a roughening method or surface treatment such as chemical surface treatment can be applied.
- the oxidation method include corona discharge treatment, chromium oxidation treatment, flame treatment, hot air treatment, ozone-ultraviolet treatment method, and the like, and examples of the concavo-convex method include sand blast method, solvent treatment method, and the like.
- the corona discharge treatment method is preferably used from surfaces, such as the effect of surface treatment, and operativity.
- the substrate may be subjected to a treatment such as forming a primer layer or a back surface primer layer. . These primer layers will be described later.
- the substrate preferably contains substantially no carbon black from the viewpoint of heat shielding. Not substantially containing means that the total solid content of the substrate is 0.1% by mass or less, more preferably 0.01% by mass or less, still more preferably 0.001% by mass or less. Still more preferably, it is 0% by mass. It is preferable that the solid print layer described later also contains substantially no carbon black.
- the average of the spectral reflectance at a wavelength of 780 to 2500 nm measured according to JIS K 5602: 2008 is preferably 30% or more, and more preferably 35% or more.
- the decorative sheet 100 of the present invention has a decorative layer 20 including a solid print layer 21 and a picture layer 22 on a substrate 10.
- the solid printing layer is a layer containing a pigment having infrared transparency or infrared reflectivity and a binder resin.
- the infrared-transparent or infrared-reflecting pigment contained in the solid printing layer is (A) a compound of three or more selected from the group of pigments consisting of quinacridone, isoindolinone, nickel azo complex and phthalocyanine, or B) A composite oxide containing manganese and at least one metal element other than manganese, and one or more compounds selected from the group of pigments comprising an azomethine azo compound and a perylene compound.
- the decorative sheet of the present invention comprises a solid print layer containing the pigment of the above (A) or (B), a substrate having the above-mentioned infrared reflectivity, and a pattern layer containing carbon black described later and a binder resin.
- the pigment (A) is a compound of three or more selected from the group of pigments consisting of quinacridone, isoindolinone, nickel azo complex and phthalocyanine.
- the pigment (A) is a compound of three or more selected from the group of pigments consisting of quinacridone, isoindolinone, nickel azo complex and phthalocyanine.
- Quinacridone is a compound represented by the molecular formula C 20 H 12 N 2 O 2 .
- Quinacridone has a difference in crystal structure, C.I. I. Pigment violet 19, C.I. I. Pigment red 122, C.I. I. Pigment red 209, C.I. I. Pigment red 202, C.I. I. Pigment orange 48, C.I. I. Pigment orange 49 and the like.
- Isoindolinone is a compound having an indolinone skeleton.
- isoindolinone C.I. I. Pigment yellow 109, C.I. I. Pigment yellow 110, C.I. I. Pigment yellow 173, C.I. I. Pigment orange 61 and the like.
- the nickel azo complex is a coordination compound by coordination bond between nickel which is an electron acceptor and an azo group which is an electron donor.
- the nickel azo complex C.I. I. Pigment green 10, C.I. I. Pigment yellow 150 and the like.
- Phthalocyanines are cyclic compounds having a structure in which four phthalimides are bridged by nitrogen atoms.
- metal free phthalocyanine C.I. I. Pigment blue 16
- metal phthalocyanine C.I. I. Pigment blue 15, C.I. I. Pigment blue 15: 3, C.I. I. Pigment blue 15: 4, C.I. I. Pigment blue 15: 6, C.I. I. Pigment green 7, C.I. I. Pigment green 36 and the like.
- Three or more compounds selected from the group of pigments consisting of quinacridones, isoindolinones, nickel azo complexes and phthalocyanines can be appropriately combined according to the desired color, and, for example, (i) a kind of red pigment or orange pigment And (ii) one of a yellow pigment or a green pigment, and (iii) one of a blue pigment or a purple pigment.
- organic pigment combinations include C.I. I. Pigment red 122 and C.I. I. Pigment yellow 150 and C.I. I. Pigment blue 15, a combination of C.I. I. Pigment red 122 and C.I. I. Pigment yellow 109 and C.I. I. The combination with pigment blue 15 etc. are mentioned.
- the pigment (B) is one or more compounds selected from the group of pigments consisting of a composite oxide containing manganese and at least one metal element other than manganese, an azomethine azo compound and a perylene compound.
- the solid printing layer darkens the solid printing layer while maintaining the heat shielding properties by including at least one compound selected from the group of pigments consisting of manganese-based composite oxides, azomethine azo-based compounds and perylene-based compounds. be able to.
- the manganese-based composite oxide of the pigment (B) may be the same as the manganese-based composite oxide exemplified as the infrared reflective pigment contained in the substrate having infrared reflectivity.
- the azomethine azo pigment has a diazonium group which is a reaction compound of tetrachlorophthalimide and aminoaniline.
- the perylene pigment is a pigment having a structure in which two oxygen atoms constituting a six-membered ring of perylenetetracarboxylic acid dianhydride are dropped, and examples thereof include perylene black and the like.
- the pigment having infrared transparency or infrared reflectivity in the solid printing layer is 5 to 5 on the basis of the solid content of the solid printing layer from the viewpoint of concealing the color tone of the substrate and the balance of the formability of the decorative sheet.
- the content is preferably 80% by mass, more preferably 8 to 80% by mass, and still more preferably 10 to 75% by mass.
- the content of the pigment of (A) is 5 to 60% by mass based on the solid content of the solid printing layer
- the amount is preferably 8 to 40% by mass, and more preferably 10 to 30% by mass.
- the content of the pigment of (B) is 5 to 50% by mass based on the solid content of the solid printing layer The content is preferably 5 to 40% by mass, and more preferably 5 to 30% by mass.
- the pigment of (A) is mainly added and the pigment of (B) is further added or the pigment of (B) is mainly added and the pigment of (A) to the extent that the effect of the present invention is not impaired. May be Moreover, you may use together the pigment which has other infrared rays permeability or infrared reflectivity in the range which does not inhibit the effect of this invention.
- Other infrared transmitting or infrared reflecting pigments include titanium oxide and iron oxide.
- the average particle diameter of the infrared-transparent or infrared-reflective pigment is preferably 0.1 ⁇ m or more, and more preferably 0.2 ⁇ m or more, from the viewpoint of enhancing the absorptivity in the visible light region.
- the upper limit of the average particle size of the pigment having infrared permeability or infrared reflectivity is not particularly limited, but it is preferably 3.0 ⁇ m or less, from the viewpoint of making the design of the decorative layer delicate. It is more preferable that it is the following and it is further more preferable that it is 1.0 micrometer or less.
- an average particle diameter is a value which can be calculated
- a binder resin of a solid printing layer For example, a urethane resin, an acrylic polyol resin, an acrylic resin, an ester resin, an amide resin, butyral resin, a styrene resin, a urethane acryl copolymer, polycarbonate-type urethane acryl copolymer Polymer (Urethane-acrylic copolymer derived from a polymer having a carbonate bond in the polymer main chain and having two or more hydroxyl groups in the terminal and side chains (polycarbonate polyol) -based, vinyl chloride-vinyl acetate copolymer resin Resins such as vinyl chloride-vinyl acetate-acrylic copolymer resin, chlorinated propylene resin, nitrocellulose resin, cellulose acetate resin are preferably mentioned, and these can be used alone or in combination of two or more.
- isocyanate compounds such as tolylene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPID), xylylene diisocyanate (XDI), etc.
- TDI tolylene diisocyanate
- MDI diphenylmethane diisocyanate
- HDI hexamethylene diisocyanate
- IPID isophorone diisocyanate
- XDI xylylene diisocyanate
- resins such as two-part cures with agents.
- the solid print layer and the pattern layer to be described later may contain a weathering agent such as an ultraviolet light absorber and a light stabilizer from the viewpoint of improving the weatherability.
- a weathering agent such as an ultraviolet light absorber and a light stabilizer
- the ultraviolet absorber and the light stabilizer which were illustrated as what may be contained in a base material can be mentioned.
- the content of the ultraviolet absorber and the light stabilizer may be, for example, in the same range as the content in the surface protective layer described later, from the viewpoint of improving the weather resistance.
- the thickness of the solid print layer is preferably 0.5 to 15 ⁇ m, more preferably 1 to 10 ⁇ m, and still more preferably 2 to 8 ⁇ m from the viewpoint of the balance between the concealability and the formability.
- the solid printing layer does not have to be a so-called "all solid printing layer" formed on the entire surface of the substrate.
- the solid printing layer preferably covers 90% or more of the entire area of the substrate, more preferably 95% or more, and 99% or more It is further preferred to cover and even more preferably 100%.
- the solid print layer be a wood-skin pattern (of the patterns constituting the wood grain pattern, portions other than the conduit groove pattern and / or the knot pattern).
- the design given by the decorative layer is a stone pattern such as travertine
- the design given by a decoration layer is a tile pattern or a brick pattern
- the solid print layer may be a single layer, or a plurality of solid print layers may be laminated.
- the picture layer contains carbon black and a binder resin.
- the picture layer is formed on the side of the solid printing layer opposite to the substrate.
- the relatively wide area solid printing layer does not substantially contain carbon black, and the relatively small area pattern layer contains carbon black, while satisfying the heat shielding properties, Can express a design excellent in dark color.
- Carbon black can use a general purpose thing.
- the average particle size of the carbon black is preferably 10 to 150 nm, and more preferably 30 to 100 nm.
- the content of carbon black in the pattern layer is preferably 0.1 to 5.0% by mass on the basis of the solid content of the pattern layer, from the viewpoint of maintaining the heat shielding property while enhancing the dark color, It is more preferable that the content is about 2.5% by mass, and further preferably 1.0 to 2.0% by mass.
- the picture layer contains carbon black in the above proportion and may further contain other coloring agents.
- coloring agents general-purpose coloring agents can be used.
- one or more selected from the group of organic pigments consisting of quinacridone, isoindolinone, nickel azo complex and phthalocyanine can be used.
- the ratio of the area of the pattern layer to the total area of the decorative sheet is preferably 50% or less, more preferably 30% or less. By setting the area ratio to 50% or less, the heat shielding property can be further improved. Moreover, from the viewpoint of making dark chromaticity better, the area ratio is preferably 20% or more, and more preferably 25% or more. In addition, the whole area of a decorative sheet, and the area of the pattern layer containing carbon black and a binder resin mean the area at the time of planarly viewing a decorative sheet.
- the binder resin for the picture layer may be the same as the binder resin for the solid printing layer described above.
- the pattern layer may contain a weathering agent such as an ultraviolet light absorber and a light stabilizer from the viewpoint of improving the weather resistance.
- a weathering agent such as an ultraviolet light absorber and a light stabilizer from the viewpoint of improving the weather resistance.
- an ultraviolet absorber and a light stabilizer the ultraviolet absorber and the light stabilizer which were illustrated as what may be contained in a base material can be mentioned.
- the content of the ultraviolet absorber and the light stabilizer may be, for example, in the same range as the content in the surface protective layer described later, from the viewpoint of improving the weather resistance.
- the thickness of the pattern layer is preferably 0.5 to 20 ⁇ m, more preferably 1 to 10 ⁇ m, and still more preferably 2 to 8 ⁇ m, from the viewpoint of the balance between provision of dark color and moldability.
- the thickness of each picture layer is preferably in the above range.
- the kind of pattern of a pattern layer is not specifically limited, Since it is a pattern of a dark color containing carbon black, it is preferable that it is a pattern which expresses a crevice.
- the design given by the decorative layer is a wood grain pattern, it is preferable that the picture layer has a conduit groove pattern and / or a knot pattern.
- the design given by the decorative layer is a stone pattern such as travertine, the pattern layer preferably has a recessed portion pattern.
- the design given by a decoration layer is a tile pattern or a brick pattern, it is preferable to make a pattern layer into a joint pattern.
- the pattern layer can be formed, for example, by printing using an ink for forming a pattern layer containing carbon black and a binder resin.
- a pattern layer may be formed by a single color, and a pattern layer may be formed by multi-color printing which prepared a plurality of ink which changed concentration of carbon black, and a combination of other additives.
- the picture layer may be a single layer, or a plurality of picture layers may be laminated so as to overlap each other.
- the decorative sheet of the present invention is a CIE measured in accordance with JIS Z8781-4: 2013 in a portion having a solid print layer and a pattern layer on the surface of the decorative layer side of the decorative sheet in order to enhance the high-quality feeling by dark color.
- the L * value of the color system is preferably 45 or less, more preferably 40 or less.
- the decorative sheet of the present invention may have, as a decorative layer, other pattern layers (pattern layers other than the pattern layer containing carbon black and a binder resin). In addition, it is preferable not to have another pattern layer from a viewpoint of raising dark chromaticity.
- the pattern layer containing an azomethine azo pigment and binder resin is mentioned, for example.
- the decorative sheet can have an adhesive layer A as needed.
- the decorative sheet has a transparent resin layer to be described later, it is effective to provide the adhesive layer A when improving the interlayer adhesion between the decorative layer and the transparent resin layer.
- the adhesive agent normally used by a decorative sheet can be used without a restriction
- a urethane type adhesive agent As an adhesive agent, a urethane type adhesive agent, an acrylic type adhesive agent, an epoxy type adhesive agent, a rubber type adhesive agent etc. are mentioned, for example, Especially, a urethane type adhesive agent is preferable at the point of adhesive force.
- a urethane type adhesive agent 2 liquid curing type urethane resin containing various polyol compounds, such as polyether polyol, polyester polyol, acryl polyol, and polycarbonate diol, and hardening agents, such as said various isocyanate compounds, is used, for example Adhesives are included.
- acrylic-polyester-salt-and-vinyl-resins and the like are also suitable adhesives which can readily exhibit adhesiveness by heating and maintain adhesive strength even when used at high temperatures.
- the thickness of the adhesive layer A is preferably 0.1 ⁇ m or more, more preferably 1 ⁇ m or more, still more preferably 2 ⁇ m or more, from the viewpoint of obtaining sufficient adhesion, and the upper limit is preferably 20 ⁇ m or less, more preferably 10 ⁇ m or less.
- Transparent resin layer In the decorative sheet, it is preferable to laminate a transparent resin layer directly on the decorative layer or through another layer from the viewpoint of protecting the decorative layer, and from the viewpoint of improving surface characteristics such as weather resistance and scratch resistance.
- the transparent resin layer may be a single layer or may be formed of two or more layers.
- the resin constituting the transparent resin layer include polyolefin resin, polyester resin, acrylic resin, polycarbonate resin, polyurethane resin, polystyrene resin, vinyl chloride resin, vinyl acetate resin, and fluorine resin.
- polyolefin resins, polyester resins and fluorine resins are preferable, and polyolefin resins are particularly preferable, from the viewpoint of improvement of surface characteristics such as weather resistance and scratch resistance.
- polyolefin resin resin illustrated as what can constitute a substrate is mentioned, and polypropylene resin is preferred among them.
- fluorine resin examples include polyvinyl fluoride, polyvinylidene fluoride, polytetrafluorinated ethylene, ethylene-tetrafluorinated ethylene copolymer, tetrafluorinated ethylene-6 fluorinated propylene copolymer, and the like. A single substance or a mixture of two or more of these can be used.
- the transparent resin layer containing a fluorine resin is, apart from the fluorine resin, polymethyl (meth) acrylate, polybutyl (meth) acrylate, methyl (meth) acrylate-butyl (meth) acrylate copolymer, ethylene-methyl (meth) It is preferable to include an acrylic resin such as an acrylate copolymer.
- an acrylic resin such as an acrylate copolymer.
- An additive may be mix
- a weathering agent such as an ultraviolet light absorber and a light stabilizer.
- an ultraviolet absorber and a light stabilizer the ultraviolet absorber and the light stabilizer which were illustrated as what can be used for a base material can be mentioned.
- the content of these weathering agents can be exemplified from the same range as the content in the substrate from the viewpoint of improving the weather resistance.
- the thickness of the transparent resin layer is preferably 10 ⁇ m or more, more preferably 30 ⁇ m or more, and still more preferably 50 ⁇ m or more from the viewpoint of protection of the decorative layer, and improvement of surface characteristics such as scratch resistance and weather resistance.
- the upper limit is preferably 150 ⁇ m or less, more preferably 120 ⁇ m or less, and still more preferably 100 ⁇ m or less.
- the transparent resin layer is subjected to physical surface treatment such as oxidation method, surface roughening method, or chemical surface treatment on one side or both sides in order to improve interlayer adhesion between the transparent resin layer and other layers.
- Surface treatment can be applied.
- these physical or chemical surface treatments the same methods as the above-mentioned substrate surface treatments are preferably exemplified.
- a treatment such as forming a primer layer on one side or both sides of the transparent resin layer may be performed. The primer layer will be described later.
- the decorative sheet has a surface directly on the decorative layer or on another layer (adhesive layer A, transparent resin layer, primer layer) mainly from the viewpoint of imparting surface characteristics such as scratch resistance and weather resistance. It is preferable to provide a protective layer.
- the surface protective layer is a layer composed of a cured product of a resin composition containing a curable resin.
- curable resin used for formation of a surface protective layer ionizing radiation curable resin etc. other than thermosetting resin, such as 2 liquid curable resin, are preferably used, For example, ionization which combined these multiple types, It may be a so-called hybrid type in which a radiation curable resin and a thermosetting resin are used in combination or a curable resin and a thermoplastic resin are used in combination.
- a curable resin an ionizing radiation curable resin is preferable from the viewpoint of increasing the crosslink density of the resin constituting the surface protective layer and obtaining more excellent scratch resistance and surface characteristics such as weather resistance, and the handling is easy. From the viewpoint of the above, electron beam curable resins are more preferable.
- the ionizing radiation curable resin is a resin which is crosslinked and cured by irradiation with ionizing radiation, and has an ionizing radiation curable functional group.
- the ionizing radiation-curable functional group is a group that is crosslinked and cured by irradiation with ionizing radiation, and a functional group having an ethylenic double bond such as (meth) acryloyl group, vinyl group, allyl group is preferably mentioned.
- ionizing radiation means an electromagnetic wave or charged particle beam having energy quantums capable of polymerizing or crosslinking molecules, and usually, ultraviolet (UV) or electron beam (EB) is used, and others Also included are electromagnetic waves such as X-rays and ⁇ -rays, and charged particle beams such as ⁇ -rays and ion beams.
- the ionizing radiation curable resin can be appropriately selected from polymerizable monomers and polymerizable oligomers conventionally used as ionizing radiation curable resins.
- (meth) acrylate monomers having a radical polymerizable unsaturated group in the molecule are preferable, and among them, polyfunctional (meth) acrylate monomers are preferable.
- (meth) acrylate means "acrylate or methacrylate”.
- multifunctional (meth) acrylate monomers include (meth) acrylate monomers having two or more ionizing radiation-curable functional groups in the molecule, and at least (meth) acryloyl groups as the functional groups, An acrylate monomer having an acryloyl group is preferable from the viewpoint of obtaining surface properties such as more excellent scratch resistance and weather resistance.
- the number of functional groups is preferably 2 or more, and the upper limit is preferably 8 or less, more preferably 6 or less, still more preferably 4 or less, particularly preferably 3 from the viewpoint of obtaining more excellent surface resistance such as scratch resistance and weather resistance. It is below.
- These polyfunctional (meth) acrylates may be used alone or in combination of two or more.
- polymerizable oligomer examples include (meth) acrylate oligomers having two or more ionizing radiation curable functional groups in the molecule and having at least a (meth) acryloyl group as the functional group.
- urethane (meth) acrylate oligomer, epoxy (meth) acrylate oligomer, polyester (meth) acrylate oligomer, polyether (meth) acrylate oligomer, polycarbonate (meth) acrylate oligomer, acrylic (meth) acrylate oligomer etc. are mentioned.
- a polymerizable oligomer a highly hydrophobic polybutadiene (meth) acrylate oligomer having a (meth) acrylate group in the side chain of a polybutadiene oligomer, and a silicone (meth) acrylate oligomer having a polysiloxane bond in the main chain (Aminoplast resin (meth) acrylate oligomer modified with aminoplast resin having many reactive groups in a small molecule, or novolak epoxy resin, bisphenol epoxy resin, aliphatic vinyl ether, aromatic vinyl ether, etc.) And oligomers having a cationically polymerizable functional group.
- urethane (meth) acrylate oligomer epoxy (meth) acrylate oligomer, polyester (meth) acrylate oligomer, polyether (meth) acrylate oligomer, polycarbonate (meth) Acrylate oligomers and acrylic (meth) acrylate oligomers are preferred, and urethane (meth) acrylate oligomers and polycarbonate (meth) acrylate oligomers are more preferred.
- the number of functional groups of these polymerizable oligomers is preferably 2 or more, and the upper limit is preferably 8 or less, more preferably 6 or less, still more preferably It is 4 or less, more preferably 3 or less.
- the weight average molecular weight of these polymerizable oligomers is preferably 2,500 or more, more preferably 3,000 or more, and still more preferably 3,500 or more from the viewpoint of obtaining more excellent surface properties such as scratch resistance and weather resistance. . Moreover, as an upper limit, 15,000 or less is preferable, 12,500 or less is more preferable, and 11,000 or less is still more preferable.
- the weight average molecular weight is an average molecular weight measured by GPC analysis and converted to standard polystyrene.
- monofunctional (meth) acrylate can be appropriately used in combination with the above-mentioned multifunctional (meth) acrylate etc. for the purpose of lowering the viscosity.
- monofunctional (meth) acrylates may be used alone or in combination of two or more.
- the ionizing radiation curable resin preferably contains a polymerizable oligomer from the viewpoint of improving surface characteristics such as scratch resistance and weather resistance. 80 mass% or more is preferable, as for content of the polymerizable oligomer in ionizing radiation curable resin, 90 mass% or more is more preferable, 95 mass% or more is more preferable, and 100 mass% is still more preferable.
- the curable resin composition which comprises a surface protective layer contains a ultraviolet absorber.
- the ultraviolet absorber is stably held in the surface protective layer, so that excellent weather resistance can be obtained even under a severe environment.
- UV absorbers include benzotriazole-based UV absorbers, benzophenone-based UV absorbers, and triazine-based UV absorbers, which are exemplified as UV absorbers that may be contained in a substrate, and triazine-based UV absorbers are preferable.
- the curable resin composition which comprises a surface protective layer contains a light stabilizer from a viewpoint of improving a weather resistance.
- a light stabilizer a hindered amine light stabilizer is preferable, and the hindered amine light stabilizer exemplified as the light stabilizer that can be used for the base material can be used, and from the viewpoint of weatherability, decanedioic acid (sebacic acid) derived Hindered amine light stabilizers are preferred.
- these UV absorbers and light stabilizers may be used alone or in combination of two or more.
- the ultraviolet light absorber and the light stabilizer may have, for example, a reactive functional group having an ethylenic double bond, such as (meth) acryloyl group, vinyl group and allyl group.
- a reactive functional group having an ethylenic double bond such as (meth) acryloyl group, vinyl group and allyl group.
- 0.1 mass part or more is preferable with respect to 100 mass parts of curable resin which comprises a surface protective layer, as for content of the ultraviolet absorber in a surface protective layer, 0.2 mass part or more is more preferable, and 0.3 More preferably, it is at least 50 parts by mass, and more preferably at least 0.5 parts by mass. Moreover, as an upper limit, 20 mass parts or less are preferable, and 10 mass parts or less are more preferable.
- the content of the light stabilizer in the surface protective layer is preferably 0.1 parts by mass or more, more preferably 0.5 parts by mass or more, and 1 part by mass with respect to 100 parts by mass of the curable resin constituting the surface protective layer. The above is more preferable, and 1.5 parts by mass or more is more preferable.
- a UV screening agent in addition to the above-mentioned UV absorber and light stabilizer, a UV screening agent, an abrasion resistance improver, a polymerization inhibitor, a crosslinking agent, charging, within the range not impairing the object of the present invention.
- An inhibitor, an adhesion improver, a leveling agent, a thixotropy-imparting agent, a coupling agent, a plasticizer, an antifoamer, a filler, an antiblocking agent, a lubricant, a solvent and the like can be added.
- the thickness of the surface protective layer is preferably 2 ⁇ m or more, more preferably 3 ⁇ m or more, and still more preferably 4 ⁇ m or more from the viewpoint of improving surface characteristics such as scratch resistance and weather resistance. Moreover, from a viewpoint of crack suppression of the surface protection layer at the time of shape
- the decorative sheet can be provided with a primer layer as desired.
- the primer layer is a layer mainly provided to obtain the effect of improving interlayer adhesion.
- a primer layer is provided in the surface on the opposite side to the surface protective layer side of a base material (a primer layer in such a case is also called "back side primer layer"), a base material and adhesion are carried out. Interlayer adhesion to the material can be improved.
- the primer layer is between the substrate and the decorative layer, between the adhesive layer A and the transparent resin layer, between the transparent resin layer and the surface protective layer, and on the side opposite to the decorative layer side of the substrate. , Can be provided in any one or more places selected from.
- a resin composition in which an additive such as a binder, a curing agent, a weathering agent such as an ultraviolet light absorber and a light stabilizer, and an additive such as an antiblocking agent are appropriately mixed is used.
- resin illustrated as a binder which can be used for said solid printing layer is mentioned preferably, for example, These can be used individually or in combination of multiple types.
- a mixture of a polycarbonate-based urethane-acrylic copolymer and an acrylic polyol resin can be used as a binder.
- isocyanate compounds such as tolylene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPID), xylylene diisocyanate (XDI), etc.
- TDI tolylene diisocyanate
- MDI diphenylmethane diisocyanate
- HDI hexamethylene diisocyanate
- IPID isophorone diisocyanate
- XDI xylylene diisocyanate
- resins such as two-part cures with agents.
- the primer layer preferably contains a weathering agent such as an ultraviolet light absorber and a light stabilizer.
- a weathering agent such as an ultraviolet light absorber and a light stabilizer.
- an ultraviolet absorber and a light stabilizer what was illustrated as what may be contained in a base material can be mentioned.
- the content of the ultraviolet light absorber in the primer layer is preferably 1 part by mass or more, more preferably 5 parts by mass or more, still more preferably 10 parts by mass or more, with respect to 100 parts by mass of the resin constituting the primer layer Preferably it is 40 mass parts or less, More preferably, it is 30 mass parts or less, More preferably, it is 25 mass parts or less.
- the content of the light stabilizer in the primer layer is preferably 0.5 parts by mass or more, more preferably 1 part by mass or more, and still more preferably 1.5 parts by mass with respect to 100 parts by mass of the resin constituting the primer layer.
- the content is more preferably 2 parts by mass or more, and the upper limit is preferably 20 parts by mass or less, more preferably 15 parts by mass or less, still more preferably 10 parts by mass or less, still more preferably 8 parts by mass or less.
- the thickness of the primer layer is preferably 1 ⁇ m or more, more preferably 2 ⁇ m or more, and still more preferably 3 ⁇ m or more, from the viewpoint of obtaining the effect of improving interlayer adhesion and further reducing the thermal shrinkage of each layer. Moreover, as an upper limit, 10 micrometers or less are preferable, 8 micrometers or less are more preferable, and 6 micrometers or less are more preferable.
- the decorative sheet may have an uneven surface formed by embossing or the like.
- embossing for example, the decorative sheet is preferably heated to 80 ° C. or more and 260 ° C. or less, more preferably 85 ° C. or more and 160 ° C. or less, still more preferably 100 ° C. or more and 140 ° C. or less, and pressing the embossed plate on the decorative sheet Can be embossed.
- the embossed plate is preferably pressed against the decorative layer side with respect to the base material of the decorative sheet.
- the decorative sheet of the present invention is, for example, a floor, a wall, a window, a door, a handrail, a fence, a fence, a ladder, a ladder or other building or structure; a dashboard, a glove box, an instrument panel upper case, a center console, a floor console, etc. Etc. It can be suitably used as a decorative sheet for window frames in which the heat due to the irradiation of sunlight tends to be a problem, and a decorative sheet for vehicle interiors such as automobiles.
- the decorative material of the present invention has an adherend and the above-mentioned decorative sheet of the present invention, and more specifically, the side of the adherend requiring decoration and the substrate of the decorative sheet It is what made the surface face and laminated.
- the adherend examples include flat plates of various materials, plate materials such as curved plates, three-dimensionally shaped articles, sheets (or films), and the like.
- wood members used as board materials and three-dimensionally shaped articles such as wood veneers made of various wood such as cedar, bush, pine and rawan, wood plywood, particle board, wood fiber board such as MDF (medium density fiber board) Materials such as iron, aluminum, etc. plate materials, steel plates, three-dimensional shaped articles, or metal members used as sheets, etc.
- Ceramic members used as plate materials and three-dimensional shaped articles such as ceramic materials; Acrylic resin, polyester resin, polystyrene resin, polyolefin resin such as polypropylene, ABS (acrylonitrile-butadiene-styrene copolymer) resin, phenol resin, vinyl chloride Plate materials such as resin, cellulose resin, rubber etc., three-dimensional shaped articles or sheets Resin member or the like used as the like. Moreover, these members can be used individually or in combination of multiple types.
- the thickness of the adherend may be appropriately selected according to the application and the material, preferably 0.1 mm or more and 10 mm or less, more preferably 0.3 mm or more and 5 mm, and still more preferably 0.5 mm or more and 3 mm or less.
- the adhesive used for the adhesive layer B is not particularly limited, and a known adhesive can be used, and preferred examples thereof include adhesives such as a thermal adhesive and a pressure sensitive adhesive.
- the resin used for the adhesive constituting the adhesive layer B include acrylic resin, polyurethane resin, vinyl chloride resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer resin, styrene-acrylic copolymer resin, polyester Resin, a polyamide resin etc. are mentioned, These can be used individually or in combination of multiple types.
- a two-component curable polyurethane-based adhesive or polyester-based adhesive using an isocyanate compound or the like as a curing agent can also be applied.
- an adhesive can be used for the adhesive layer B.
- pressure-sensitive adhesive pressure-sensitive adhesives such as acrylics, urethanes, silicones and rubbers can be appropriately selected and used.
- the thickness of the adhesive layer B is not particularly limited, but is preferably 1 ⁇ m to 100 ⁇ m, more preferably 5 ⁇ m to 50 ⁇ m, and still more preferably 10 ⁇ m to 30 ⁇ m from the viewpoint of obtaining excellent adhesion.
- a decorative material can be manufactured through the process of laminating a decorative sheet and an adherend.
- This step is a step of laminating the adherend and the decorative sheet of the present invention, and the surface on the side requiring the decoration of the adherend and the surface on the substrate side of the decorative sheet are opposed to be laminated.
- a laminating method for example, a laminating method in which the decorative sheet is laminated on the plate-like adherend by pressing with the pressure roller via the adhesive layer B can be mentioned.
- the heating temperature is preferably 160 ° C. or more and 200 ° C. or less, and 100 for the reactive hot melt adhesive. C. or more and 130 ° C. or less are preferable. In the case of vacuum forming processing, heating is generally performed, and 80 ° C. or more and 130 ° C. or less is preferable, and more preferably 90 ° C. or more and 120 ° C. or less.
- the decorative materials obtained as described above are, for example, floors, walls, windows, doors, doors, handrails, fences, fences, ladders, buildings and structures such as dashboards, glove boxes, instrument panel upper cases, center consoles, floors. It can be used as a member such as a vehicle such as a console; a member such as a vehicle such as a car; particularly, it can be suitably used as a decorative material for window frame where heat by irradiation of sunlight is a problem it can.
- Example 1 A substrate (thickness 60 ⁇ m, average 35% of spectral reflectance of wavelength 780 to 2500 nm, L * value: 58) containing a manganese-based composite oxide is prepared as a substrate having infrared reflectivity, and On one side, a solid printing layer-forming ink 1 having the following formulation was applied by a gravure coating method and dried to form a solid printing layer (wood-skin pattern) having a thickness of 4 ⁇ m.
- Binder resin (acrylic urethane resin) 76 parts by mass Red pigment (CI pigment red 122) 10 parts by mass (average particle size: 0.13 ⁇ m) -Yellow pigment (CI pigment yellow 150) 9 parts by mass (average particle size: 0.05 ⁇ m) ⁇ 5 parts by mass of blue pigment (CI pigment blue 15) (average particle size: 0.04 ⁇ m) ⁇ Dilution solvent appropriate amount
- the pattern layer forming ink 1 of the following formulation is applied by gravure coating on the solid print layer and dried to form a 7 ⁇ m thick pattern layer (conduit groove pattern), and the solid print layer and the pattern layer are included.
- a wood grain decorative layer was formed.
- the ratio of the area of the pattern layer to the total area of the decorative sheet was 20%.
- Binder resin (acrylic urethane resin) 80 parts by mass Red pigment (CI pigment red 122) 12 parts by mass (average particle size: 0.13 ⁇ m) 6 parts by mass of yellow pigment (CI pigment yellow 150) (average particle size: 0.05 ⁇ m) -Black pigment (carbon black) 2 parts by mass-Dilution solvent
- an adhesive layer (polyester resin, thickness: 5 ⁇ m) is formed on the picture layer, and a transparent resin layer (transparent polypropylene resin, thickness: 80 ⁇ m) is laminated on the adhesive layer by extrusion laminating method did.
- the surface of the transparent resin layer was subjected to corona discharge treatment, and then a two-component curable urethane resin composition was applied to form a primer layer (thickness: 2 ⁇ m).
- the surface protective layer forming ink of the following formulation is applied by roll coating on the primer layer, and an electron beam irradiation apparatus is used under the conditions of oxygen concentration: 200 ppm, acceleration voltage: 175 keV, and irradiation amount: 5 Mrad.
- an electron beam irradiation apparatus is used under the conditions of oxygen concentration: 200 ppm, acceleration voltage: 175 keV, and irradiation amount: 5 Mrad.
- irradiation amount 5 Mrad.
- the decorative sheet of Example 1 was obtained.
- a coated steel plate (thickness: 0.4 mm) coated with an adhesive made of a two-component curable urethane resin is placed in an oven, aged at 150 ° C. for 1 minute, and then immediately coated with the coated steel plate and the above using a roll laminator.
- the cosmetic sheet of Example 1 was stuck to obtain a cosmetic material of Example 1.
- the adhesive coated surface of the coated steel sheet was made to face the white polypropylene sheet side of the decorative sheet.
- the above evaluation is performed on the obtained decorative sheet and the decorative member, and the evaluation results are shown in Table 1.
- Example 2 A decorative sheet and a cosmetic material of Example 2 were obtained in the same manner as Example 1, except that the solid printing layer forming ink 1 was changed to the solid printing layer forming ink 2 of the following formulation.
- Binder resin (acrylic urethane resin) 30 parts by mass Infrared reflective pigment (TiO 2 ) 50 parts by mass Infrared transmissive pigment (FeOOH) 9 parts by mass (average particle diameter: 0.1 ⁇ m) ⁇ Infrared transmitting pigment (Fe 2 O 3 ) 6 parts by mass (average particle size: 0.1 ⁇ m) ⁇ Infrared reflective pigment 5 parts by mass (complex oxide containing manganese, calcium and titanium as metal elements) (Ishihara Sangyo Co., Ltd., product number: MPT-370, black pigment, average primary particle diameter 0.8 ⁇ m) ⁇ Dilution solvent appropriate amount
- Example 3 The substrate having infrared reflectivity is changed to a substrate containing titanium oxide (thickness 60 ⁇ m, average 40% of spectral reflectance of wavelength 780 to 2500 nm, L * value: 90), and solid printing layer forming ink 1
- a decorative sheet and a cosmetic material of Example 3 were obtained in the same manner as in Example 1 except that the solid printing layer-forming ink 2 of the above formulation was changed.
- Example 4 The same as Example 1 except that the substrate having infrared reflectivity is changed to a substrate containing titanium oxide (thickness 60 ⁇ m, average 40% of spectral reflectance at wavelength 780 to 2500 nm, L * value: 90). Thus, the decorative sheet and the cosmetic material of Example 4 were obtained.
- Comparative Example 1 The substrate having infrared reflectivity is changed to a substrate containing titanium oxide (thickness 60 ⁇ m, average 40% of spectral reflectance at wavelength 780 to 2500 nm, L * value: 90), and the ink 1 for forming a picture layer is changed.
- a decorative sheet and a decorative material of Comparative Example 1 were obtained in the same manner as in Example 1 except that the image layer forming ink 2 was changed to the following formulation.
- Binder resin (acrylic urethane resin) 80 parts by mass Red pigment (CI pigment red 122) 6 parts by mass (average particle size: 0.13 ⁇ m) -Yellow pigment (CI pigment yellow 150) 9 parts by mass (average particle size: 0.05 ⁇ m) ⁇ Black pigment (azomethine azo pigment) 5 parts by mass (average particle size: 0.2 ⁇ m) ⁇ Dilution solvent appropriate amount
- Comparative Example 2 The substrate having infrared reflectivity is changed to a substrate containing titanium oxide (thickness 60 ⁇ m, average 40% of spectral reflectance of wavelength 780 to 2500 nm, L * value: 90), and solid printing layer forming ink 1
- the decorative sheet of Comparative Example 2 is the same as Example 1, except that the ink is changed to the pattern layer forming ink 3 of the following formulation and the pattern layer forming ink 1 is changed to the pattern layer forming ink 3 of the following formulation. And obtained the cosmetic material.
- Binder resin (acrylic urethane resin) 80 parts by mass Red pigment (CI pigment red 122) 6 parts by mass (average particle size: 0.13 ⁇ m) -Yellow pigment (CI pigment yellow 150) 9 parts by mass (average particle size: 0.05 ⁇ m) ⁇ Black pigment (azomethine azo pigment) 5 parts by mass (average particle size: 0.2 ⁇ m) ⁇ Dilution solvent appropriate amount
- Binder resin (acrylic urethane resin) 76 parts by mass Red pigment (CI pigment red 122) 10 parts by mass (average particle size: 0.13 ⁇ m) -Yellow pigment (CI pigment yellow 150) 9 parts by mass (average particle size: 0.05 ⁇ m) ⁇ 5 parts by mass of blue pigment (CI pigment blue 15) (average particle size: 0.04 ⁇ m) ⁇ Dilution solvent appropriate amount
- Comparative Example 3 The substrate having infrared reflectivity is changed to a substrate containing titanium oxide (thickness 60 ⁇ m, average 40% of spectral reflectance of wavelength 780 to 2500 nm, L * value: 90), and solid printing layer forming ink 1
- the decorative sheet of Comparative Example 3 was prepared in the same manner as Example 1, except that the pattern layer forming ink 4 was changed to the pattern layer forming ink 4 described below, and the pattern layer forming ink 1 was changed to the pattern layer forming ink 4 And obtained the cosmetic material.
- Binder resin (acrylic urethane resin) 80 parts by mass Red pigment (CI pigment red 122) 8 parts by mass (average particle size: 0.13 ⁇ m) ⁇ Yellow pigment (CI pigment yellow 150) 10 parts by mass (average particle size: 0.05 ⁇ m) -Black pigment (carbon black) 2 parts by mass-Dilution solvent
- Binder resin (acrylic urethane resin) 78 parts by mass Red pigment (CI pigment red 122) 6 parts by mass (average particle size: 0.13 ⁇ m) ⁇ Yellow pigment (CI pigment yellow 150) 8 parts by mass (average particle size: 0.05 ⁇ m) -Black pigment (carbon black) 8 parts by mass-Dilution solvent
- the decorative sheet of the example can express a design excellent in heat shielding and excellent in dark color.
- the decorative sheet of the present invention has excellent heat shielding properties and can express a design having excellent dark color, and therefore, a building or structure such as a floor, a wall, a window, a door, a handrail, a fence, a fence, a ladder; It is useful as a decorative sheet for vehicles such as glove boxes, instrument panel upper cases, center consoles, floor consoles, etc .; etc. Especially, decorative sheets for window frames where heat due to irradiation of sunlight tends to be a problem, automobiles etc. It is extremely useful as a decorative sheet for vehicle interiors.
- Base material 21 Solid printing layer 22: Pattern layer 20: Decorative layer 30: Transparent resin layer 40: Surface protective layer 100: Decorative sheet
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Abstract
Description
しかし、カーボンブラックは赤外線を吸収するため、太陽光の照射を多く受ける場所でカーボンブラックを含む化粧材を用いた場合、化粧シートの温度が上昇することによって、化粧材の変形、被着材と化粧シートの剥離などの不具合が生じる場合がある。すなわち、カーボンブラックを含むインキを用いて、ベタ印刷層及び絵柄層を形成した化粧シートは、遮熱性が不十分なものであった。
遮熱性の問題を解決することを目的として、例えば特許文献1の技術が提案されている。
[1]赤外線反射性を有する基材上に、ベタ印刷層及び絵柄層を含む装飾層を有してなり、前記ベタ印刷層は、赤外線透過性又は赤外線反射性を有する顔料とバインダー樹脂とを含み、前記赤外線透過性又は赤外線反射性を有する顔料として、(A)キナクリドン、イソインドリノン、ニッケルアゾ錯体及びフタロシアニンからなる顔料の群から選択される三種以上の化合物、又は、(B)マンガンとマンガン以外の少なくとも1種の金属元素を含む複合酸化物、アゾメチンアゾ系化合物及びペリレン系化合物からなる顔料の群から選択される一種以上の化合物、を含み、前記絵柄層がカーボンブラックとバインダー樹脂とを含む、化粧シート。
[2]被着材と上記[1]に記載の化粧シートとを有する化粧材。
本発明の化粧シートは、赤外線反射性を有する基材上に、ベタ印刷層及び絵柄層を含む装飾層を有してなり、前記ベタ印刷層は、赤外線透過性又は赤外線反射性を有する顔料とバインダー樹脂とを含み、前記赤外線透過性又は赤外線反射性を有する顔料として、(A)キナクリドン、イソインドリノン、ニッケルアゾ錯体及びフタロシアニンからなる顔料の群から選択される三種以上の化合物、又は、(B)マンガンとマンガン以外の少なくとも1種の金属元素を含む複合酸化物、アゾメチンアゾ系化合物及びペリレン系化合物からなる顔料の群から選択される一種以上の化合物、を含み、前記絵柄層がカーボンブラックとバインダー樹脂とを含むものである。
なお、本明細書において、赤外線とは、波長780~2500nmの光(いわゆる「近赤外線」)のことを言うものとする。
図1~2の化粧シート100は、赤外線反射性を有する基材10上に、ベタ印刷層21及び絵柄層22を含む装飾層20を有している。また、図2の化粧シート100は、装飾層20上に、透明性樹脂層30及び表面保護層40を有している。
赤外線反射性を有する基材は、例えば、バインダー樹脂と、赤外線反射性を有する顔料を含むものが挙げられる。なお、以下、「赤外線反射性を有する基材」のことを「基材」と略称する場合がある。
これらの中で、より優れた耐候性及び耐傷性等の表面特性を得る観点から、ポリオレフィン樹脂、ポリエステル樹脂、ポリカーボネート樹脂及びABS樹脂が好ましく、加工適性の観点からポリオレフィン樹脂がより好ましい。
白色顔料として用いられる酸化チタンとしては、具体的には二酸化チタン(TiO2)であり、その結晶型としてはルチル型、アナターゼ型、ルチル型の何れも用いることができる。酸化チタンの粒径としては、白色度、隠蔽性、バインダー樹脂への分散性や製膜乃至印刷適性の点から平均粒径0.5~5μm程度である。
これらの赤外線反射性を有する顔料の中でも、マンガン系複合酸化物及び酸化チタンが好ましい。すなわち、赤外線反射性を有する基材は、マンガン系複合酸化物を含む基材及び酸化チタンを含む基材が好ましい。
マンガン以外の金属元素は、1種単独であってもよいし、2種以上の組み合わせであってもよい。マンガン以外の金属元素の具体例としては、カルシウム、バリウム等の第2族元素;イットリウム、ランタン、プラセオジム;ネオジム等の第3族元素、チタン、ジルコニウム等の第4族元素;ホウ素、アルミニウム、ガリウム、インジウム等の第13族元素;アンチモン、ビスマス等の第15族元素等の金属元素が挙げられる。これらのなかでも、第2族元素、第4族元素、第15族元素が好ましく、カルシウム、チタン、及びビスマスがより好ましく、カルシウム及びチタンがさらに好ましい。
マンガン系複合酸化物の特に好ましい具体例としては、マンガン、カルシウム及びチタンを含む複合酸化物が挙げられる。
上述したマンガンを含む複合酸化物は、例えば、WO2016/125907A1に記載されている。
マンガン系複合酸化物を含む基材には、マンガン系複合酸化物以外の赤外線反射性を有する顔料や赤外線透過性を有する顔料を含有していてもよいが、マンガン系複合酸化物を含む基材のL*値が上記範囲となるように調製することが好ましい。
酸化チタンを含む基材には、酸化チタン以外の赤外線反射性を有する顔料や赤外線透過性を有する顔料を含有していてもよいが、酸化チタンを含む基材のL*値が上記範囲となるように調製することが好ましい。
また、後述するベタ印刷層の赤外線透過性又は赤外線反射性を有する顔料に関して、(A)キナクリドン、イソインドリノン、ニッケルアゾ錯体及びフタロシアニンからなる顔料の群から選択される三種以上の化合物と、(B)マンガンとマンガン以外の少なくとも1種の金属元素を含む複合酸化物、アゾメチンアゾ系化合物及びペリレン系化合物からなる顔料の群から選択される一種以上の化合物とを比較すると、遮熱性は前者が優れ、暗色度は後者が優れている。
したがって、遮熱性及び暗色度のバランスの観点から、基材としてマンガン系複合酸化物を含む基材を用いる場合には、ベタ印刷層の顔料として、(A)キナクリドン、イソインドリノン、ニッケルアゾ錯体及びフタロシアニンからなる顔料の群から選択される三種以上の化合物を用いることが好ましい。同様に、遮熱性及び暗色度のバランスの観点から、基材として酸化チタンを含む基材を用いる場合には、ベタ印刷層の顔料として、(B)マンガンとマンガン以外の少なくとも1種の金属元素を含む複合酸化物、アゾメチンアゾ系化合物及びペリレン系化合物からなる顔料の群から選択される一種以上の化合物を用いることが好ましい。
なお、暗色とは、濃灰色、深緑色、紺色、黒色、濃紫色、臙脂(えんじ)色、茶色等の低明度、低彩色の暗い感じのする色のことをいう。
光安定剤としては、例えばヒンダードアミン系光安定剤が好ましく、中でも(メタ)アクリロイル基、ビニル基、アリル基等のエチレン性二重結合である官能基等を有する反応性基含有ヒンダードアミン系光安定剤が好ましく挙げられる。
また、基材中の光安定剤の含有量は、バインダー樹脂100質量部に対し、好ましくは0.5質量部以上、より好ましくは1質量部以上、更に好ましくは3質量部以上であり、上限として好ましくは10質量部以下、より好ましくは8質量部以下、更に好ましくは6質量部以下である。
基材中の紫外線吸収剤、光安定剤の含有量が上記範囲内であると、ブリードアウトしにくく、優れた添加効果が得られる。
基材の厚さは、取り扱い性及び強度のバランスの観点から、20μm以上が好ましく、30μm以上がより好ましく、40μm以上がさらに好ましい。上限としては、200μm以下が好ましく、160μm以下がより好ましく、100μm以下がさらに好ましい。
酸化法としては、例えばコロナ放電処理、クロム酸化処理、火炎処理、熱風処理、オゾン-紫外線処理法等が挙げられ、凹凸化法としては、例えばサンドブラスト法、溶剤処理法等が挙げられる。これらの表面処理は、基材の種類に応じて適宜選択されるが、一般にはコロナ放電処理法が、表面処理の効果及び操作性等の面から好ましく用いられる。
また、基材と他の層との層間密着性の向上、被着材との接着性の強化等のために、基材にプライマー層、裏面プライマー層を形成する等の処理を施してもよい。これらのプライマー層については、後述する。
本発明の化粧シート100は、基材10上に、ベタ印刷層21及び絵柄層22を含む装飾層20を有する。
ベタ印刷層は、赤外線透過性又は赤外線反射性を有する顔料とバインダー樹脂とを含む層である。
また、ベタ印刷層に含まれる赤外線透過性又は赤外線反射性を有する顔料は、(A)キナクリドン、イソインドリノン、ニッケルアゾ錯体及びフタロシアニンからなる顔料の群から選択される三種以上の化合物、又は、(B)マンガンとマンガン以外の少なくとも1種の金属元素を含む複合酸化物、アゾメチンアゾ系化合物及びペリレン系化合物からなる顔料の群から選択される一種以上の化合物、を含む。
具体的な有機顔料の組み合わせとしては、C.I.ピグメントレッド122とC.I.ピグメントイエロー150とC.I.ピグメントブルー15との組み合わせ、C.I.ピグメントレッド122とC.I.ピグメントイエロー109とC.I.ピグメントブルー15との組み合わせ等が挙げられる。
ペリレン系顔料は、ペリレンテトラカルボン酸二無水物の六員環を構成している酸素原子2個を脱落させた構造を有する顔料であり、ペリレンブラック等が挙げられる。
また、赤外線透過性又は赤外線反射性を有する顔料として(A)の顔料を含む場合、該(A)の顔料の含有量は、ベタ印刷層の固形分基準で5~60質量%であることが好ましく、8~40質量%であることがより好ましく、10~30質量%であることがさらに好ましい。
また、赤外線透過性又は赤外線反射性を有する顔料として(B)の顔料を含む場合、該(B)の顔料の含有量は、ベタ印刷層の固形分基準で5~50質量%であることが好ましく、5~40質量%であることがより好ましく、5~30質量%であることがさらに好ましい。
なお、本発明の効果を阻害しない範囲で、(A)の顔料を主体としてさらに(B)の顔料を添加したり、(B)の顔料を主体としてさらに(A)の顔料を添加したりしてもよい。
また、本発明の効果を阻害しない範囲で、その他の赤外線透過性又は赤外線反射性を有する顔料を併用してもよい。その他の赤外線透過性又は赤外線反射性を有する顔料としては、酸化チタン及び酸化鉄が挙げられる。
なお、本明細書において平均粒子径とは、レーザー光回折法による粒度分布測定における質量平均値D50として求めることができる値である。
なお、ベタ印刷層は、単層であってもよいし、複数のベタ印刷層を積層してもよい。
絵柄層は、カーボンブラックとバインダー樹脂とを含むものである。絵柄層はベタ印刷層の基材とは反対側に形成される。
本発明の化粧シートは、相対的に面積が広いベタ印刷層に実質的にカーボンブラックを含まず、相対的に面積が狭い絵柄層がカーボンブラックを含むことにより、遮熱性を満足しつつ、且つ暗色度に優れた意匠を表現できる。
カーボンブラックの平均粒子径は、10~150nmであることが好ましく、30~100nmであることがより好ましい。
また、暗色度をより良好にする観点からは、該面積割合を20%以上とすることが好ましく、25%以上とすることがより好ましい。
なお、化粧シートの全面積、及び、カーボンブラックとバインダー樹脂とを含む絵柄層の面積は、化粧シートを平面視した際の面積を意味する。
紫外線吸収剤及び光安定剤としては、基材に含まれ得るものとして例示した、紫外線吸収剤、光安定剤を挙げることができる。紫外線吸収剤及び光安定剤の含有量は、耐候性の向上の観点から、後述する表面保護層中の含有量と同じ範囲を例示することができる。
装飾層により付与する意匠が木目模様の場合、絵柄層は導管溝模様及び/又は節目模様とすることが好ましい。また、装飾層により付与する意匠がトラバーチン等の石の模様の場合、絵柄層は凹陥部模様とすることが好ましい。また、装飾層により付与する意匠がタイル模様又はレンガ模様の場合、絵柄層は目地模様とすることが好ましい。
本発明の化粧シートは、装飾層として、その他の絵柄層(カーボンブラックとバインダー樹脂とを含む絵柄層以外の絵柄層)を有していてもよい。なお、暗色度を高める観点からは、その他の絵柄層を有さないことが好ましい。
その他の絵柄層としては、例えば、アゾメチンアゾ系顔料とバインダー樹脂とを含む絵柄層が挙げられる。
化粧シートは、必要に応じて接着剤層Aを有することができる。
特に、化粧シートが後述する透明性樹脂層を有する場合、装飾層と該透明性樹脂層との層間密着性を向上させるときに、接着剤層Aを設けることは有効である。接着剤層Aを構成する接着剤としては、通常化粧シートで用いられる接着剤を制限なく用いることができる。
化粧シートは、装飾層を保護する観点、耐候性及び耐傷性等の表面特性の向上の観点から、装飾層上に直接、又は他の層を介して透明性樹脂層を積層することが好ましい。透明性樹脂層は単層であってもよいし、2層以上から形成してもよい。
中でも、耐候性及び耐傷性等の表面特性の向上の観点から、ポリオレフィン樹脂、ポリエステル樹脂及び弗素樹脂が好ましく、特にポリオレフィン樹脂が好ましい。ポリオレフィン樹脂としては、基材を構成し得るものとして例示した樹脂が挙げられ、中でもポリプロピレン樹脂が好ましい。
弗素樹脂を含む透明性樹脂層は、弗素樹脂とは別に、ポリメチル(メタ)アクリレート、ポリブチル(メタ)アクリレ-ト、メチル(メタ)アクリレート-ブチル(メタ)アクリレート共重合体、エチレン-メチル(メタ)アクリレート共重合体等のアクリ樹脂を含むことが好ましい。
また、弗素樹脂を含む透明性樹脂層を用いる場合、その他の透明性樹脂層を併用し、透明性樹脂層を多層構成とすることが好ましい。この際、その他の透明性樹脂層が装飾層側となるように配置することが好ましい。
紫外線吸収剤、光安定剤としては、基材に用い得るものとして例示した、紫外線吸収剤、光安定剤を挙げることができる。これらの耐候剤の含有量は、耐候性の向上の観点から、基材中の含有量と同じ範囲を例示することができる。
また、透明性樹脂層と他の層との層間密着性の向上のために、透明性樹脂層の片面又は両面にプライマー層を形成する等の処理を施してもよい。このプライマー層については、後述する。
化粧シートには、主に耐傷性及び耐候性等の表面特性を付与する観点から、装飾層上に直接、又は他の層(接着剤層A、透明性樹脂層、プライマー層)の上に表面保護層を設けることが好ましい。
表面保護層の形成に用いられる硬化性樹脂としては、2液硬化型樹脂等の熱硬化性樹脂の他、電離放射線硬化性樹脂等が好ましく用いられ、これらの複数種を組み合わせた、例えば、電離放射線硬化性樹脂と熱硬化性樹脂とを併用する、又は硬化性樹脂と熱可塑性樹脂とを併用する、いわゆるハイブリッドタイプであってもよい。
硬化性樹脂としては、表面保護層を構成する樹脂の架橋密度を高め、より優れた耐傷性及び耐候性等の表面特性とを得る観点から、電離放射線硬化性樹脂が好ましく、また、取り扱いが容易との観点から、電子線硬化性樹脂がより好ましい。
電離放射線硬化性樹脂とは、電離放射線を照射することにより、架橋、硬化する樹脂のことであり、電離放射線硬化性官能基を有するものである。ここで、電離放射線硬化性官能基とは、電離放射線の照射によって架橋硬化する基であり、(メタ)アクリロイル基、ビニル基、アリル基等のエチレン性二重結合を有する官能基等が好ましく挙げられる。また、電離放射線とは、電磁波又は荷電粒子線のうち、分子を重合あるいは架橋し得るエネルギー量子を有するものを意味し、通常、紫外線(UV)又は電子線(EB)が用いられるが、その他、X線、γ線等の電磁波、α線、イオン線等の荷電粒子線も含まれる。
電離放射線硬化性樹脂としては、具体的には、従来電離放射線硬化性樹脂として慣用されている重合性モノマー、重合性オリゴマーの中から適宜選択して用いることができる。
多官能性(メタ)アクリレートモノマーとしては、分子中に2つ以上の電離放射線硬化性官能基を有し、かつ該官能基として少なくとも(メタ)アクリロイル基を有する(メタ)アクリレートモノマーが挙げられ、より優れた耐傷性及び耐候性等の表面特性を得る観点から、アクリロイル基を有するアクリレートモノマーが好ましい。
より優れた耐傷性及び耐候性等の表面特性を得る観点から、官能基数は好ましくは2以上であり、上限として好ましくは8以下、より好ましくは6以下、更に好ましくは4以下、特に好ましくは3以下である。これらの多官能性(メタ)アクリレートは、単独で、又は複数種を組み合わせて用いてもよい。
さらに、重合性オリゴマーとしては、他にポリブタジエンオリゴマーの側鎖に(メタ)アクリレート基をもつ疎水性の高いポリブタジエン(メタ)アクリレート系オリゴマー、主鎖にポリシロキサン結合をもつシリコーン(メタ)アクリレート系オリゴマー、小さな分子内に多くの反応性基をもつアミノプラスト樹脂を変性したアミノプラスト樹脂(メタ)アクリレート系オリゴマー、あるいはノボラック型エポキシ樹脂、ビスフェノール型エポキシ樹脂、脂肪族ビニルエーテル、芳香族ビニルエーテル等の分子中にカチオン重合性官能基を有するオリゴマー等がある。
紫外線吸収剤としては、基材に含まれ得る紫外線吸収剤として例示した、ベンゾトリアゾール系紫外線吸収剤、ベンゾフェノン系紫外線吸収剤、トリアジン系紫外線吸収剤等が挙げられ、トリアジン系紫外線吸収剤が好ましい。
表面保護層中の光安定剤の含有量は、表面保護層を構成する硬化性樹脂100質量部に対し、0.1質量部以上が好ましく、0.5質量部以上がより好ましく、1質量部以上がさらに好ましく、1.5質量部以上がよりさらに好ましい。また上限としては、10質量部以下が好ましく、8質量部以下がより好ましく、5質量部以下がさらに好ましく、3質量部以下がよりさらに好ましい。表面保護層中の紫外線吸収剤、光安定剤の含有量が上記範囲内であると、ブリードアウトすることなく、優れた添加効果が得られる。
化粧シートは、所望に応じてプライマー層を設けることができる。プライマー層は、主に層間密着性の向上効果を得るために設けられる層である。また、プライマー層が基材の表面保護層側とは反対側の面に設けられる場合(このような場合のプライマー層は、「裏面プライマー層」とも称される。)は、基材と被着材との層間密着性を向上することができる。
プライマー層は、基材と装飾層との間、接着剤層Aと透明性樹脂層との間、透明性樹脂層と表面保護層との間、基材の装飾層側とは反対側の面、から選らばれる何れか1箇所以上に設けることができる。
バインダーとしては、例えば、上記のベタ印刷層に用い得るバインダーとして例示した樹脂が好ましく挙げられ、これらを単独で、又は複数種を組み合わせて用いることができる。例えば、ポリカーボネート系ウレタン-アクリル共重合体とアクリルポリオール樹脂との混合物をバインダーとして用いることができる。
プライマー層における紫外線吸収剤の含有量は、プライマー層を構成する樹脂100質量部に対し、好ましくは1質量部以上、より好ましくは5質量部以上、さらに好ましくは10質量部以上であり、また上限として好ましくは40質量部以下、より好ましくは30質量部以下、さらに好ましくは25質量部以下である。
また、プライマー層における光安定剤の含有量は、プライマー層を構成する樹脂100質量部に対し、好ましくは0.5質量部以上、より好ましくは1質量部以上、さらに好ましくは1.5質量部以上、よりさらに好ましくは2質量部以上であり、また上限として好ましくは20質量部以下、より好ましくは15質量部以下、さらに好ましくは10質量部以下、よりさらに好ましくは8質量部以下である。
プライマー層中の紫外線吸収剤及び光安定剤の含有量が上記範囲内であると、プライマー層としての優れた性能とともに、優れた耐候性が得られる。
エンボス加工を行う場合、例えば、化粧シートを好ましくは80℃以上260℃以下、より好ましくは85℃以上160℃以下、さらに好ましくは100℃以上140℃以下に加熱し、化粧シートにエンボス版を押圧して、エンボス加工を行うことができる。エンボス版は、化粧シートの基材を基準として装飾層側に押し当てることが好ましい。
本発明の化粧材は、被着材と上記の本発明の化粧シートとを有するものであり、より具体的には、被着材の装飾を要する側の面と、化粧シートの基材側の面とを対向させて積層したものである。
被着材としては、各種素材の平板、曲面板等の板材、立体形状物品、シート(或いはフィルム)等が挙げられる。例えば、杉、檜、松、ラワン等の各種木材から成る木材単板、木材合板、パーティクルボード、MDF(中密度繊維板)等の木質繊維板等の板材や立体形状物品等として用いられる木質部材;鉄、アルミニウム等の板材や鋼板、立体形状物品、あるいはシート等として用いられる金属部材;ガラス、陶磁器等のセラミックス、石膏等の非セメント窯業系材料、ALC(軽量気泡コンクリート)板等の非陶磁器窯業系材料等の板材や立体形状物品等として用いられる窯業部材;アクリル樹脂、ポリエステル樹脂、ポリスチレン樹脂、ポリプロピレン等のポリオレフィン樹脂、ABS(アクリロニトリル-ブタジエン-スチレン共重合体)樹脂、フェノール樹脂、塩化ビニル樹脂、セルロース樹脂、ゴム等の板材、立体形状物品、あるいはシート等として用いられる樹脂部材等が挙げられる。また、これらの部材は、単独で、又は複数種を組み合わせて用いることができる。
被着材と化粧シートとは、優れた接着性を得るため、接着剤層Bを介して貼り合わせられることが好ましい。
また、接着剤層Bには、粘着剤を用いることもできる。粘着剤としては、アクリル系、ウレタン系、シリコーン系、ゴム系等の粘着剤を適宜選択して用いることができる。
化粧材は、化粧シートと被着材とを積層する工程を経て製造することができる。
本工程は、被着材と、本発明の化粧シートとを積層する工程であり、被着材の装飾を要する側の面と、化粧シートの基材側の面とを対向させて積層する。被着材と化粧シートとを積層する方法としては、例えば、接着剤層Bを介して化粧シートを板状の被着材に加圧ローラーで加圧して積層するラミネート方法等が挙げられる。
1.測定及び評価
1-1.遮熱性
実施例及び比較例で得られた化粧材に、200W形ランプ(白熱灯,岩崎電気(株)製造)を用いて、室温(23℃)、相対湿度50%の条件下、30cm高さから照射し、10分後の化粧材の表面温度を測定し、下記の基準で評価した。
A:表面温度は85℃以上90℃未満であった。
B:表面温度は90℃以上95℃未満であった。
C:表面温度は95℃以上100℃未満であった。
比較例1の化粧シートをリファレンスとして、実施例及び比較例の化粧シートを表面保護層から観察し、木目意匠の暗色の度合いを評価した。リファレンスに対して木目意匠の暗色度が極めて優れるものを3点、リファレンスに対して木目意匠の暗色度が優れるものを2点、リファレンスと同等あるいはリファレンスと同等未満と感じるものを1点として、20人の被験者が評価を行い、平均点を算出した。結果を表1に示す。なお、リファレンスである比較例1は「C」とした。
<評価基準>
A:平均点が2.0以上
B:平均点が1.5以上2.0未満
C:平均点が1.0以上1.5未満
[実施例1]
赤外線反射性を有する基材として、マンガン系複合酸化物を含む基材(厚さ60μm。波長780~2500nmの分光反射率の平均35%、L*値:58)を用意して、該シートの一方の面に、下記処方のベタ印刷層形成用インキ1をグラビアコート法により塗布、乾燥し、厚さ4μmのベタ印刷層(木肌模様)を形成した。
・バインダー樹脂(アクリルウレタン系樹脂) 76質量部
・赤色顔料(C.I.ピグメントレッド122) 10質量部
(平均粒子径:0.13μm)
・黄色顔料(C.I.ピグメントイエロー150) 9質量部
(平均粒子径:0.05μm)
・青色顔料(C.I.ピグメントブルー15) 5質量部
(平均粒子径:0.04μm)
・希釈溶剤 適量
・バインダー樹脂(アクリルウレタン系樹脂) 80質量部
・赤色顔料(C.I.ピグメントレッド122) 12質量部
(平均粒子径:0.13μm)
・黄色顔料(C.I.ピグメントイエロー150) 6質量部
(平均粒子径:0.05μm)
・黒色顔料(カーボンブラック) 2質量部
・希釈溶剤 適量
次いで、透明性樹脂層の表面にコロナ放電処理を施した後、2液硬化性ウレタン樹脂組成物を塗布してプライマー層(厚さ:2μm)を形成した。
<表面保護層形成用インキ>
・3官能ウレタンアクリレートオリゴマー 100質量部
(質量平均分子量5000)
・無機フィラー 25質量部
(シリカ粒子、平均粒子径:5μm)
得られた化粧シート、及び化粧部材について、上記の評価を行い、その評価結果を表1に示す。
ベタ印刷層形成用インキ1を下記処方のベタ印刷層形成用インキ2に変更した以外は、実施例1と同様にして、実施例2の化粧シート及び化粧材を得た。
・バインダー樹脂(アクリルウレタン系樹脂) 30質量部
・赤外線反射性顔料(TiO2) 50質量部
・赤外線透過性顔料(FeOOH) 9質量部
(平均粒子径:0.1μm)
・赤外線透過性顔料(Fe2O3) 6質量部
(平均粒子径:0.1μm)
・赤外線反射性顔料 5質量部
(金属元素としてマンガン、カルシウム及びチタンを含む複合酸化物)
(石原産業株式会社製、品番:MPT-370、黒色顔料、平均一次粒子径0.8μm)
・希釈溶剤 適量
赤外線反射性を有する基材を、酸化チタンを含む基材(厚さ60μm。波長780~2500nmの分光反射率の平均40%、L*値:90)に変更し、ベタ印刷層形成用インキ1を上記処方のベタ印刷層形成用インキ2に変更した以外は、実施例1と同様にして、実施例3の化粧シート及び化粧材を得た。
赤外線反射性を有する基材を、酸化チタンを含む基材(厚さ60μm。波長780~2500nmの分光反射率の平均40%、L*値:90)に変更した以外は、実施例1と同様にして、実施例4の化粧シート及び化粧材を得た。
赤外線反射性を有する基材を、酸化チタンを含む基材(厚さ60μm。波長780~2500nmの分光反射率の平均40%、L*値:90)に変更し、絵柄層形成用インキ1を下記処方の絵柄層形成用インキ2に変更した以外は、実施例1と同様にして、比較例1の化粧シート及び化粧材を得た。
・バインダー樹脂(アクリルウレタン系樹脂) 80質量部
・赤色顔料(C.I.ピグメントレッド122) 6質量部
(平均粒子径:0.13μm)
・黄色顔料(C.I.ピグメントイエロー150) 9質量部
(平均粒子径:0.05μm)
・黒色顔料(アゾメチンアゾ系顔料) 5質量部
(平均粒子径:0.2μm)
・希釈溶剤 適量
赤外線反射性を有する基材を、酸化チタンを含む基材(厚さ60μm。波長780~2500nmの分光反射率の平均40%、L*値:90)に変更し、ベタ印刷層形成用インキ1を下記処方の絵柄層形成用インキ3に変更し、絵柄層形成用インキ1を下記処方の絵柄層形成用インキ3に変更した以外は、実施例1と同様にして、比較例2の化粧シート及び化粧材を得た。
・バインダー樹脂(アクリルウレタン系樹脂) 80質量部
・赤色顔料(C.I.ピグメントレッド122) 6質量部
(平均粒子径:0.13μm)
・黄色顔料(C.I.ピグメントイエロー150) 9質量部
(平均粒子径:0.05μm)
・黒色顔料(アゾメチンアゾ系顔料) 5質量部
(平均粒子径:0.2μm)
・希釈溶剤 適量
・バインダー樹脂(アクリルウレタン系樹脂) 76質量部
・赤色顔料(C.I.ピグメントレッド122) 10質量部
(平均粒子径:0.13μm)
・黄色顔料(C.I.ピグメントイエロー150) 9質量部
(平均粒子径:0.05μm)
・青色顔料(C.I.ピグメントブルー15) 5質量部
(平均粒子径:0.04μm)
・希釈溶剤 適量
赤外線反射性を有する基材を、酸化チタンを含む基材(厚さ60μm。波長780~2500nmの分光反射率の平均40%、L*値:90)に変更し、ベタ印刷層形成用インキ1を下記処方の絵柄層形成用インキ4に変更し、絵柄層形成用インキ1を下記処方の絵柄層形成用インキ4に変更した以外は、実施例1と同様にして、比較例3の化粧シート及び化粧材を得た。
・バインダー樹脂(アクリルウレタン系樹脂) 80質量部
・赤色顔料(C.I.ピグメントレッド122) 8質量部
(平均粒子径:0.13μm)
・黄色顔料(C.I.ピグメントイエロー150) 10質量部
(平均粒子径:0.05μm)
・黒色顔料(カーボンブラック) 2質量部
・希釈溶剤 適量
・バインダー樹脂(アクリルウレタン系樹脂) 78質量部
・赤色顔料(C.I.ピグメントレッド122) 6質量部
(平均粒子径:0.13μm)
・黄色顔料(C.I.ピグメントイエロー150) 8質量部
(平均粒子径:0.05μm)
・黒色顔料(カーボンブラック) 8質量部
・希釈溶剤 適量
21:ベタ印刷層
22:絵柄層
20:装飾層
30:透明性樹脂層
40:表面保護層
100:化粧シート
Claims (15)
- 赤外線反射性を有する基材上に、ベタ印刷層及び絵柄層を含む装飾層を有してなり、
前記ベタ印刷層は、赤外線透過性又は赤外線反射性を有する顔料とバインダー樹脂とを含み、
前記赤外線透過性又は赤外線反射性を有する顔料として、(A)キナクリドン、イソインドリノン、ニッケルアゾ錯体及びフタロシアニンからなる顔料の群から選択される三種以上の化合物、又は、(B)マンガンとマンガン以外の少なくとも1種の金属元素を含む複合酸化物、アゾメチンアゾ系化合物及びペリレン系化合物からなる顔料の群から選択される一種以上の化合物、を含み、
前記絵柄層がカーボンブラックとバインダー樹脂とを含む、化粧シート。 - 前記ベタ印刷層は、固形分基準で前記赤外線透過性又は赤外線反射性を有する顔料を5~80質量%含む請求項1に記載の化粧シート。
- 前記ベタ印刷層の厚みが0.5~15μmである、請求項1又は2に記載の化粧シート。
- 前記絵柄層は、固形分基準で前記カーボンブラックを0.1~5.0質量%含む、請求項1~3の何れか1項に記載の化粧シート。
- 前記絵柄層の厚みが0.5~20μmである、請求項1~4の何れか1項に記載の化粧シート。
- 前記赤外線反射性を有する基材が、マンガンとマンガン以外の少なくとも1種の金属元素を含む複合酸化物を含む基材である、請求項1~5の何れか1項に記載の化粧シート。
- 前記赤外線反射性を有する基材のJIS Z8781-4:2013に準拠して測定されるCIE(国際照明委員会)L*a*b*表色系のL*値が60以下である、請求項6に記載の化粧シート。
- 前記赤外線透過性又は赤外線反射性を有する顔料が、(A)キナクリドン、イソインドリノン、ニッケルアゾ錯体及びフタロシアニンからなる顔料の群から選択される三種以上の化合物である、請求項6又は7に記載の化粧シート。
- 前記赤外線反射性を有する基材が酸化チタンを含む基材である、請求項1~5の何れか1項に記載の化粧シート。
- 前記赤外線反射性を有する基材のJIS Z8781-4:2013に準拠して測定されるCIE(国際照明委員会)L*a*b*表色系のL*値が80以上である、請求項9に記載の化粧シート。
- 前記赤外線透過性又は赤外線反射性を有する顔料が、(B)マンガンとマンガン以外の少なくとも1種の金属元素を含む複合酸化物、アゾメチンアゾ系化合物及びペリレン系化合物からなる顔料の群から選択される一種以上の化合物である、請求項9又は10に記載の化粧シート。
- 前記化粧シートの全面積に対する、前記絵柄層の面積の割合が50%以下である請求項1~11の何れか1項に記載の化粧シート。
- 前記化粧シートが前記装飾層上に透明性樹脂層及び保護層の少なくとも何れかを有する請求項1~12の何れか1項に記載の化粧シート。
- 前記化粧シートの前記装飾層側の表面の前記ベタ印刷層及び前記絵柄層を有する箇所における、JIS Z8781-4:2013に準拠して測定されるCIE(国際照明委員会)L*a*b*表色系のL*値が45以下である、請求項1~13の何れか1項に記載の化粧シート。
- 被着材と請求項1~14の何れか1項に記載の化粧シートとを有する化粧材。
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JP6586747B2 (ja) * | 2015-03-12 | 2019-10-09 | 凸版印刷株式会社 | 化粧シート及び化粧材 |
JP6586749B2 (ja) * | 2015-03-12 | 2019-10-09 | 凸版印刷株式会社 | 化粧シート及び化粧材 |
JP6589306B2 (ja) * | 2015-03-13 | 2019-10-16 | 凸版印刷株式会社 | 化粧シート及び化粧材 |
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2017
- 2017-09-27 JP JP2017187138A patent/JP6962109B2/ja active Active
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2018
- 2018-09-27 KR KR1020207011640A patent/KR102584824B1/ko active IP Right Grant
- 2018-09-27 CN CN201880072041.8A patent/CN111344145B/zh active Active
- 2018-09-27 US US16/650,589 patent/US11731409B2/en active Active
- 2018-09-27 WO PCT/JP2018/035839 patent/WO2019065801A1/ja unknown
- 2018-09-27 AU AU2018341793A patent/AU2018341793B2/en active Active
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US20210362462A1 (en) * | 2019-04-23 | 2021-11-25 | Toppan Printing Co., Ltd. | Decorative sheet |
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US11731409B2 (en) | 2023-08-22 |
EP3689598A4 (en) | 2021-07-14 |
CN111344145B (zh) | 2022-12-30 |
KR102584824B1 (ko) | 2023-10-05 |
KR20200059264A (ko) | 2020-05-28 |
EP3689598A1 (en) | 2020-08-05 |
US20210001611A1 (en) | 2021-01-07 |
CN111344145A (zh) | 2020-06-26 |
AU2018341793B2 (en) | 2024-02-08 |
JP6962109B2 (ja) | 2021-11-05 |
AU2018341793A1 (en) | 2020-05-07 |
JP2019059180A (ja) | 2019-04-18 |
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