WO2022209957A1 - 化粧シート、化粧材、化粧シートの製造方法 - Google Patents
化粧シート、化粧材、化粧シートの製造方法 Download PDFInfo
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- WO2022209957A1 WO2022209957A1 PCT/JP2022/012291 JP2022012291W WO2022209957A1 WO 2022209957 A1 WO2022209957 A1 WO 2022209957A1 JP 2022012291 W JP2022012291 W JP 2022012291W WO 2022209957 A1 WO2022209957 A1 WO 2022209957A1
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/28—Multiple coating on one surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4023—Coloured on the layer surface, e.g. ink
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/422—Luminescent, fluorescent, phosphorescent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/712—Weather resistant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
- B32B2307/7145—Rot proof, resistant to bacteria, mildew, mould, fungi
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/75—Printability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2451/00—Decorative or ornamental articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
- B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44F—SPECIAL DESIGNS OR PICTURES
- B44F1/00—Designs or pictures characterised by special or unusual light effects
- B44F1/08—Designs or pictures characterised by special or unusual light effects characterised by colour effects
Definitions
- the present invention relates to a decorative sheet, a decorative material, and a method for manufacturing a decorative sheet, which are used, for example, as construction materials such as general fittings.
- a silver-based inorganic additive or a zinc-based inorganic additive is blended in a coating resin that forms the outermost surface of the decorative sheet, so that anti-rust properties can be obtained.
- a cosmetic sheet with a viral composition is a cosmetic sheet with a viral composition.
- the decorative sheet having antiviral properties as disclosed in Patent Document 1 has an appearance that mimics the wood grain and stone grain of natural materials. It is difficult to clearly indicate on the surface of the product that it is a product with Therefore, it is impossible to check non-destructively if a decorative sheet that does not have antibacterial or antiviral properties is used in a place where antibacterial or antiviral properties are required due to force majeure such as mix-up. There was a problem that
- the present invention provides a decorative sheet, a decorative material, and a method for manufacturing a decorative sheet that enables non-destructive visual confirmation of whether the decorative sheet has antibacterial and antiviral properties. intended to provide
- one aspect of the present invention provides a printing substrate layer, a pattern layer laminated on one surface of the printing substrate layer, and a surface of the pattern layer opposite to the printing substrate layer.
- the decorative sheet is provided with a surface protective layer laminated on the side surface. At least one of an antibacterial agent and an antiviral agent and a fluorescent dye are added to the surface protective layer.
- one aspect of the present invention provides a pattern layer, a printing base layer laminated on one surface of the pattern layer and formed using a transparent resin, and a printing base
- the decorative sheet is provided with a surface protective layer laminated on the surface of the layer opposite to the surface facing the pattern layer. At least one of an antibacterial agent and an antiviral agent and a fluorescent dye are added to the surface protective layer.
- one aspect of the present invention is a decorative material including a base material and a decorative sheet laminated on at least one surface of the base material.
- one aspect of the present invention includes a printing base layer, a pattern layer laminated on one surface of the printing base layer, and a surface of the pattern layer facing the printing base layer.
- a fluorescent dye is added to the surface protective layer.
- no antibacterial agent or antiviral agent is added to the surface protective layer, no fluorescent dye is added to the surface protective layer.
- one aspect of the present invention provides a pattern layer, a printing base layer laminated on one surface of the pattern layer and formed using a transparent resin, and a printing base A method for producing a decorative sheet provided with a surface protective layer laminated on the surface of the layer opposite to the surface facing the pattern layer.
- a fluorescent dye is added to the surface protective layer.
- no antibacterial agent or antiviral agent is added to the surface protective layer, no fluorescent dye is added to the surface protective layer.
- a decorative sheet a decorative material, and a method for manufacturing a decorative sheet, which enables non-destructive visual confirmation of whether the decorative sheet has antibacterial and antiviral properties. It becomes possible to
- FIG. 1 is a cross-sectional view showing configurations of a decorative sheet and a decorative material according to a first embodiment of the present invention
- FIG. FIG. 5 is a cross-sectional view showing configurations of a decorative sheet and a decorative material according to a second embodiment of the present invention
- FIG. 5 is a cross-sectional view showing the configuration of a decorative sheet and a decorative material according to a third embodiment of the present invention
- the decorative material 10 includes a decorative sheet 1 and a base material 7, as shown in FIG. A specific configuration of the decorative sheet 1 will be described later.
- the base material 7 is formed in a plate shape using, for example, wooden boards, inorganic boards, metal plates, etc., and the decorative sheet 1 is laminated on one surface (the upper surface in FIG. 1). there is That is, the decorative material 10 includes the base material 7 and the decorative sheet 1 laminated on one surface of the base material 7 .
- the decorative sheet 1 comprises a printing substrate layer 2, a pattern layer 3, and a surface protective layer 4, as shown in FIG. ⁇ Print base layer>
- the printing substrate layer 2 is formed using a thermoplastic resin.
- a thermoplastic resin forming the printing substrate layer 2 for example, a colored thermoplastic polyolefin resin can be used.
- polyolefin-based resins examples include polyolefin resins such as polyethylene, polypropylene, polymethylpentene, polybutene, ethylene-propylene copolymers, ethylene- ⁇ -olefin copolymers, propylene- ⁇ -olefin copolymers, and ethylene- Olefin copolymers such as vinyl acetate copolymers, ethylene-vinyl alcohol copolymers, ethylene-(meth)acrylic acid (ester) copolymers, ethylene-unsaturated carboxylic acid copolymer metal neutralized products (ionomers)
- polyolefin-based resins such as coalesced resins, it is possible to use single or a mixture of two or more, a copolymer, a composite, a laminate, and the like.
- polystyrene resin it is possible to appropriately select and use from the types described above according to the purpose of use of the decorative sheet 1 and the like.
- polypropylene-based resins that is, homo- or copolymers containing propylene as a main component
- a homopolypropylene resin, a random polypropylene resin, a block polypropylene resin, or the like may be used alone or appropriately blended, and a resin or the like appropriately blended with atactic polypropylene may also be used.
- it may be a copolymer containing an olefinic monomer other than propylene.
- a propylene- ⁇ -olefin copolymer or the like containing 15 mol % or more of one or more comonomers of 1,4-methylpentene-1, hexene-1 or octene-1 can be used.
- the printing substrate layer 2 may optionally contain, for example, a coloring agent, a filler, an ultraviolet absorber, a light stabilizer, a heat stabilizer, an antioxidant, an antistatic agent, a lubricant, a flame retardant, and an antibacterial agent. , an antifungal agent, an antifriction agent, a light scattering agent, and a luster adjusting agent.
- the thickness of the printing substrate layer 2 is preferably in the range of 40 [ ⁇ m] to 150 [ ⁇ m], more preferably 50 [ ⁇ m] to 130 [ ⁇ m].
- the thickness of the printed base material layer 2 is 40 [ ⁇ m] or more, it is possible to absorb the irregularities and steps of the underlying floor material, etc., and improve the finish of the decorative sheet 1. Due to something. Further, when the thickness of the printing base material layer 2 is 150 [ ⁇ m] or less, it is possible to reduce the manufacturing cost of the decorative sheet 1 without forming the printing base material layer 2 thicker than necessary. due to that.
- the pattern layer 3 is laminated on one surface (upper surface in FIG. 1) of the printing substrate layer 2, and is a layer for adding a pattern for imparting design.
- the pattern layer 3 may be omitted if the coloring of the printing substrate layer 2 can be substituted.
- the pattern layer 3 is formed using printing ink, paint, or the like.
- the printing ink, paint, or the like that forms the pattern layer 3 is formed by dissolving or dispersing a coloring agent such as a dye or pigment in a suitable diluent solvent together with a suitable binder resin.
- the printing ink, paint, or the like that forms the pattern layer 3 is applied using, for example, various printing methods such as gravure printing or offset printing, or various coating methods such as gravure coating or roll coating.
- the binder resin for example, it is possible to use urethane-based resin, acrylic-based resin, vinyl chloride-based resin, polyimide-based resin, nitrocellulose, etc., or a mixture thereof, but is not limited to these. do not have. Any pattern can be used as the pattern. For example, wood grain patterns, stone grain patterns, texture patterns, abstract patterns, geometric patterns, letters, symbols, single-color solid colors, etc., or combinations thereof can be used. It is possible.
- a concealing layer may be provided between the pattern layer 3 and the printing substrate layer 2.
- the concealing layer is formed, for example, using opaque printing ink or paint containing a large amount of opaque pigment such as titanium dioxide or iron oxide.
- the thickness of the pattern layer 3 is preferably in the range of 1 [ ⁇ m] to 10 [ ⁇ m]. This is because printing can be made clear when the pattern layer 3 has a thickness of 1 [ ⁇ m] or more. Moreover, when the thickness of the pattern layer 3 is 10 [ ⁇ m] or less, it is possible to improve the printing workability when manufacturing the decorative sheet 1 and to suppress the manufacturing cost.
- an extender, a plasticizer, a dispersant, a surfactant, a tackifier, an adhesion aid, a desiccant, a curing agent, a curing accelerator, and a curing Functional additives such as retardants may be added.
- the pattern layer 3 includes, for example, a solid printed base layer for concealing the color and pattern of the base to which the decorative sheet 1 is attached, and a pattern for adding a design. It is good also as a structure which has a pattern pattern layer.
- the surface protective layer 4 is laminated on one surface (upper surface in FIG. 1) of the pattern layer 3 . That is, the surface protective layer 4 is laminated on the surface of the pattern layer 3 opposite to the surface facing the printing substrate layer 2 . Moreover, the surface protective layer 4 is a layer provided to impart functions such as weather resistance, scratch resistance, stain resistance, and design to the decorative sheet 1 . Moreover, the surface protective layer 4 is formed using an acrylic resin composition, for example.
- the surface protective layer 4 may optionally contain a weather resistant agent, a plasticizer, a stabilizer, a filler, a dispersant, a dye, a colorant such as a pigment, a solvent, an ultraviolet absorber, a heat stabilizer, and a light stabilizer.
- the surface protective layer 4 may contain functional additives such as an antibacterial agent and an antifungal agent, if necessary. Furthermore, an antiviral agent 5 and a fluorescent dye 6 are added to the surface protective layer 4 .
- the antiviral agent to be added to the surface protective layer 4 is formed, for example, by mixing metals such as silver, copper, and zinc into substances such as zeolite, apatite, zirconia, and silica, which are inorganic compounds, and then finely pulverizing and incorporating them.
- Inorganic antibacterial agents such as antibacterial zeolite, antibacterial apatite, antibacterial zirconia, and antibacterial silica can be used.
- antiviral agents include, for example, zinc pyridione, 2-(4-thiazolyl)-benzimidazole, 10,10-oxybisphenoxanodine, organic sulphurous halogen, pyridine-2-thiol-oxide, and the like. It is possible to use In the first embodiment, the case where the antiviral agent added to the surface protective layer 4 is an antiviral agent formed using a silver-based material will be described.
- the antiviral agent may be supported on an inorganic material.
- the amount of the antiviral agent added to the surface protective layer 4 is within the range of 0.2 parts by mass or more and 15 parts by mass or less based on the solid content of the surface protective layer 4 . This is because when the amount of the antiviral agent added is 0.2 parts by mass or more, the antiviral agent acts effectively and the antiviral properties are improved, and the amount of the antiviral agent added is 15 parts by mass or less. When it is, it originates in scratch resistance improving.
- the average particle size of the antiviral agent is within the range of 0.5 to 2 times the thickness of the surface protective layer 4 as a reference.
- the formula 0.5 ⁇ 2D is established. This is because when the average particle size of the antiviral agent is in the range of 0.5 to 2 times that of the surface protective layer 4, the contact area between the antiviral agent and the surface protective layer 4 is increased and the antiviral agent This is due to the fact that the antiviral property is improved due to the expansion of the surface area of itself.
- the average particle size of the antiviral agent is within the range of 1 [ ⁇ m] to 10 [ ⁇ m]. This is because when the average particle diameter of the antiviral agent is 1 [ ⁇ m] or more, the contact area between the antiviral agent and the surface protective layer 4 is increased, and the antiviral properties are improved. When the average particle diameter is 10 [ ⁇ m] or less, it is due to improvement in scratch resistance. Also, the particle size distribution of the antiviral agent has multiple peaks. Specifically, the particle size of the antiviral agent has two peaks. The two peaks include a first peak in the range of 1 [ ⁇ m] to 5 [ ⁇ m] and a second peak in the range of 5 [ ⁇ m] to 10 [ ⁇ m].
- the second peak is assumed to have a larger value than the first peak. Due to the presence of multiple peaks in particle size, the packing density of the antiviral agent is further improved, making it possible to add a larger amount of the antiviral agent. Therefore, the contact area between the antiviral agent and the surface protective layer 4 is increased, and the surface area of the antiviral agent itself is also increased, thereby improving the antiviral properties.
- the surface protective layer 4 which is the outermost surface of the decorative sheet 1, contains a silicon-based component (for example, silicon resin) or a fluorine-based component. (For example, fluororesin) may be contained.
- a silicon-based component for example, silicon resin
- fluorine-based component for example, fluororesin
- the surface protective layer 4 contains a silicone resin
- the curable resin forming the surface protective layer 4 is formed from an ultraviolet curable resin or an electron beam curable resin
- the modified silicone is preferably an ionizing radiation reactive modified silicone resin.
- the modified silicone is preferably a thermoreactive modified silicone resin.
- the modified silicone is at least one of ionizing radiation reactive and heat reactive. Resin is preferred.
- Modified silicones are classified into reactive modified silicones and non-reactive silicones. Examples of heat-reactive modified silicon include monoamine-modified silicon, diamine-modified silicon, epoxy-modified silicon, carbinol-modified silicon, carboxy-modified silicon, mercapto-modified silicon, silanol-modified silicon, alcohol-modified silicon, and diol-modified silicon. It is possible.
- Examples of ionizing radiation-reactive modified silicon include acryl-modified silicon and methacryl-modified silicon.
- polyether-modified silicon, aralkyl-modified silicon, long-chain alkyl-modified silicon, and higher fatty acid ester-modified silicon, which are non-reactive modified silicon can be exemplified.
- Manufacturers of modified silicon include Shin-Etsu Chemical Co., Ltd., Dow Corning Toray Co., Ltd., Momentive Performance Materials Japan LLC, Asahi Kasei Wacker Silicone Co., Ltd., and the like.
- the fluororesin examples include tetrafluoroethylene resin, tetrafluoroethylene-ethylene copolymer, polyvinylidene fluoride, and the like. Derivatives can be used. Fluororesins are widely known to exhibit a minimum level of surface tension, and are suitable as stain-resistant materials. Manufacturers of fluororesin include Daikin Industries, Ltd., Mitsui-DuPont Fluorochemical Co., Ltd., and the like.
- the amount of the fluororesin contained in the surface protective layer 4 is preferably 10 parts by mass or more and 100 parts by mass or less. More preferably, it is 20 parts by mass or more.
- the fluororesin itself may be a curable resin.
- the surface protective layer 4 may contain at least one of a silicon-based component and a fluorine-based component. This makes it possible to improve the contamination resistance of the decorative sheet 1 . Further, when the contamination resistance is improved, it becomes possible to suppress the presence of viruses on the surface of the decorative sheet 1 for a long period of time, so it is possible to further improve the antiviral property.
- the fluorescent dye 6 is a dye that emits light when irradiated with ultraviolet rays.
- the amount of fluorescein added to the surface protective layer 4 is within the range of 0.001 or more and 0.5 or less with respect to 100 of the solid content of the surface protective layer 4 . This is because when the amount of fluorescein added to the surface protective layer 4 is less than 0.001 with respect to 100 of the solid content of the surface protective layer 4, the decorative sheet 1 becomes antibacterial and antibacterial when irradiated with ultraviolet rays. This is because it is difficult to visually determine that it has antiviral properties.
- the fluorescent dye 6 is added to the surface protective layer 4 when the antiviral agent 5 is added to the surface protective layer 4 .
- the fluorescent dye 6 is not added to the surface protective layer 4 when the antiviral agent 5 is not added to the surface protective layer 4 .
- the first embodiment described above is an example of the present invention, and the present invention is not limited to the first embodiment described above. Various modifications are possible according to the design and the like within the scope of not departing from the technical idea.
- the fluorescent dye 6 emits light when irradiated with ultraviolet rays.
- the environment in which the decorative sheet 1 is used is a normal environment, it is possible to provide the decorative sheet 1 having a design that causes less discomfort.
- the fluorescent dye 6 is formed using fluorescein. As a result, it is not necessary to increase the amount of the fluorescent dye 6 added in order to visually confirm that the decorative sheet 1 has antiviral properties, so it is possible to reduce the impact on other physical properties. Become. In addition to this, it becomes possible to suppress an increase in cost. Furthermore, it is possible to generate necessary and sufficient fluorescence in order to visually confirm that the decorative sheet 1 has antiviral properties.
- the amount of fluorescein added to the surface protective layer 4 is within the range of 0.001 to 0.5 per 100 solids content of the surface protective layer 4 .
- the decorative material 10 of the first embodiment it is possible to obtain the effects described below.
- the base material 7 and the decorative sheet 1 laminated on at least one surface of the base material 7 are provided. Therefore, it is possible to non-destructively confirm that the decorative sheet 1 is the decorative sheet 1 having antiviral properties by the fluorescent dye 6 emitting light. As a result, it is possible to provide the decorative material 10 that enables visual confirmation of the antiviral properties of the decorative sheet 1 in a non-destructive manner. Moreover, with the method for manufacturing the decorative sheet 1 of the first embodiment, it is possible to obtain the effects described below.
- the fluorescent dye 6 is added to the surface protective layer 4 .
- the fluorescent dye 6 is not added to the surface protective layer 4 . Therefore, it is possible to non-destructively confirm that the decorative sheet 1 is the decorative sheet 1 having antiviral properties by the fluorescent dye 6 emitting light. As a result, it is possible to provide a method for manufacturing the decorative sheet 1 that enables visual confirmation of the antiviral properties of the decorative sheet 1 in a non-destructive manner.
- the decorative material 10 includes a decorative sheet 1 and a base material 7, as shown in FIG.
- the decorative sheet 1 includes a printing substrate layer 2, a pattern layer 3, an ultraviolet absorbing layer 8, and a surface protective layer 4, as shown in FIG. ⁇ Ultraviolet absorption layer>
- the ultraviolet absorbing layer 8 is a layer arranged between the surface protective layer 4 and the pattern layer 3, and contains an ultraviolet absorbing agent.
- an ultraviolet absorber for example, "TINUVIN 400" manufactured by BASF Japan Ltd. can be used.
- the second embodiment described above is an example of the present invention, and the present invention is not limited to the second embodiment described above. Various modifications are possible according to the design and the like within the scope of not departing from the technical idea.
- An ultraviolet absorbing layer 8 is further provided between the surface protective layer 4 and the pattern layer 3, and an ultraviolet absorbing agent is added to the ultraviolet absorbing layer 8. As a result, it is possible to provide the decorative sheet 1 capable of exhibiting high fluorescence performance and weather resistance performance.
- the decorative sheet 1 comprises a pattern layer 3, a printed substrate layer 2, and a surface protective layer 4, as shown in FIG.
- the configuration of the third embodiment is that the printing base material layer 2 is laminated on one surface (the upper surface in FIG. 3) of the pattern layer 3, and the printing base material layer 2 is made of a transparent resin (for example, transparent polypropylene resin), and the surface protective layer 4 is laminated on the surface opposite to the surface facing the pattern layer 3 of the printing base layer 2 (upper surface in FIG. 3). It is the same as the first embodiment except that
- the fluorescent dye 6 is added to the surface protective layer 4 when the antiviral agent 5 is added to the surface protective layer 4 .
- the fluorescent dye 6 is not added to the surface protective layer 4 when the antiviral agent 5 is not added to the surface protective layer 4 .
- the third embodiment described above is an example of the present invention, and the present invention is not limited to the third embodiment described above. Various modifications are possible according to the design and the like within the scope of not departing from the technical idea.
- a pattern layer 3 a printing substrate layer 2 laminated on one surface of the pattern layer 3 and formed using a transparent resin, and a surface of the printing substrate layer 2 facing the pattern layer 3.
- a surface protective layer 4 is laminated on the opposite side, and an antiviral agent 5 and a fluorescent dye 6 are added to the surface protective layer 4 . Therefore, it is possible to non-destructively confirm that the decorative sheet 1 is the decorative sheet 1 having antiviral properties by the fluorescent dye 6 emitting light. As a result, it is possible to provide the decorative sheet 1 that allows the non-destructive visual confirmation that the decorative sheet 1 has antiviral properties.
- the method for manufacturing the decorative sheet 1 of the third embodiment it is possible to obtain the effects described below.
- the fluorescent dye 6 is added to the surface protective layer 4 .
- the fluorescent dye 6 is not added to the surface protective layer 4 . Therefore, it is possible to non-destructively confirm that the decorative sheet 1 is the decorative sheet 1 having antiviral properties by the fluorescent dye 6 emitting light. As a result, it is possible to provide a method for manufacturing the decorative sheet 1 that enables visual confirmation of the antiviral properties of the decorative sheet 1 in a non-destructive manner.
- the antiviral agent 5 is added to the surface protective layer 4, but the present invention is not limited to this, and an antibacterial agent may be added to the surface protective layer 4.
- the fluorescent dye 6 is a dye that emits light when irradiated with ultraviolet rays, but is not limited to this, and the fluorescent dye 6 is a dye that does not emit light when irradiated with sunlight, or Alternatively, it may be a dye that emits light with a brightness that is invisible to the naked eye when exposed to sunlight.
- the decorative material 10 is configured to include the decorative sheet 1 laminated on one surface of the base material 7, but the present invention is not limited to this. That is, the configuration of the decorative material 10 is such that, in addition to one surface of the substrate 7, the decorative sheet 1 is laminated on the other surface of the substrate 7 (the lower surface in FIGS. 1 and 2). good too.
- Example 1 The printing substrate layer was formed with a thickness of 70 [ ⁇ m] using a colored polyethylene resin sheet.
- the pattern layer was formed on one surface of the printing substrate layer by gravure printing using ink for gravure printing (manufactured by Toyo Ink: "V351"). After forming the pattern layer, aging was performed for one day in a 40[°C] environment.
- the coating amount is set to 1 [g/m 2 ], and the anchor coat resin is added to 100 parts by mass of the main agent (manufactured by Mitsui Chemicals: “Takelac A3210”) and the curing agent (Mitsui Kagaku: “Takenate A50”) was added in 20 parts by mass, and gravure coating was applied.
- a transparent polypropylene resin manufactured by Prime Polymer: "E139”
- a polypropylene resin having an adhesive functional group manufactured by Mitsui Chemicals: "QF551”
- an anchor coat is co-extruded.
- the weather resistance formulation was applied by melt-kneading 0.3 parts by mass of "TINUVIN 234" manufactured by BASF Japan Ltd. and 0.3 parts by mass of "TINUVIN 783" manufactured by BASF Japan Ltd.
- the screw rotation speed of the extruder is adjusted so that the thickness of the transparent polypropylene resin is 60 [ ⁇ m] and the thickness of the polypropylene resin having an adhesive functional group is 10 [ ⁇ m], and the co-extrusion lamination is performed.
- the thickness of the layer formed by the method was adjusted.
- a layer of polypropylene resin ("QF551" manufactured by Mitsui Chemicals) having an adhesive functional group was formed with a thickness of 10 [ ⁇ m].
- the anchor coat, the polypropylene resin sheet having adhesive functional groups, and the polypropylene resin layer having adhesive functional groups were co-extrusion laminated so that they were adjacent to each other.
- the polypropylene resin layer having an adhesive functional group was subjected to corona treatment, and a surface protective layer was laminated on the corona-treated surface to form a decorative sheet of Example 1.
- the structure of the surface protective layer is described below.
- the surface protective layer uses an acrylic coating agent (manufactured by DIC Corporation: "UC Clear”) with a solid content of 30% as a base material, and uses "TINUVIN 292" manufactured by BASF Japan Co., Ltd. as a light stabilizer. 2 parts by mass was added to 100 parts by mass of "UC clear”. Furthermore, as an antiviral agent (antibacterial agent) formed using a silver-based material, 2 parts by mass of “Biocide TB-B100” manufactured by Taisho Technos was added to 100 parts of “UC Clear”. In addition, 0.01 part by mass of "fluorescein” was added as a fluorescent dye to 100 parts of "UC Clear”.
- fluorescein used as a fluorescent dye, fluorescein (CasNo: 2321-07-05, chemical formula: C20H1205) manufactured by Fuji Film Wako Pure Chemical Industries, Ltd. was used.
- the coating amount of the surface protective layer was 3 [g/m 2 ].
- Example 2 A decorative sheet of Example 2 was formed in the same manner as in Example 1, except that it was configured to include an ultraviolet absorbing layer.
- the ultraviolet absorbing layer “UC Clear” was used as a base material, and 3 parts by weight of "TINUVIN 400" manufactured by BASF Japan Ltd. was added as an ultraviolet absorber to 100 parts by weight of "UC Clear”.
- 2 parts by mass of "TINUVIN 292" manufactured by BASF Japan Ltd. was added as a light stabilizer to 100 parts by mass of "UC Clear”.
- the coating amount of the ultraviolet absorbing layer was 3 [g/m 2 ].
- Example 1 A decorative sheet of Comparative Example 1 was formed in the same manner as in Example 2, except that no antiviral agent and fluorescent dye were added to the surface protective layer.
- Comparative example 2 A decorative sheet of Comparative Example 2 was formed in the same manner as in Example 1, except that no fluorescent dye was added to the surface protective layer.
- Comparative Example 3 A decorative sheet of Comparative Example 3 was formed in the same manner as in Example 2, except that no fluorescent dye was added to the surface protective layer.
- a weather resistance test using a sunshine weather meter black panel temperature is 63 [° C.], irradiation time is 120 minutes, rainfall is performed for 12 minutes during irradiation), and the weather resistance test is performed from 500 hours to 2000 hours. The change in appearance was evaluated by checking the change in appearance in increments of time.
- the decorative materials of Examples 1 and 2 were irradiated with ultraviolet rays to fluoresce the decorative sheet, and an antibacterial agent was added. It was possible to visually determine that there was On the other hand, in the decorative materials of Comparative Examples 1 to 3, as shown in Table 2, the decorative sheets did not fluoresce even when irradiated with ultraviolet rays, and it was impossible to visually determine that the antibacterial agent was added. there were.
- Decorative sheet 1... Decorative sheet, 2... Printing substrate layer, 3... Pattern layer, 4... Surface protective layer, 5... Antiviral agent, 6... Fluorescent dye, 7... Base material, 8... Ultraviolet absorption layer, 10... Cosmetic material
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Abstract
Description
そのため、取り違え等の不可抗力によって抗菌性や抗ウイルス性が必要とされる箇所に、抗菌性や抗ウイルス性を有していない化粧シートが使用された場合に、非破壊で確認することが不可能であるという課題があった。
以下、図1を参照して、化粧材10の構成について説明する。
化粧材10は、図1に示すように、化粧シート1と、基材7を備える。なお、化粧シート1の具体的な構成については、後述する。
基材7は、例えば、木質ボード類、無機質ボード類、金属板等を用いて板状に形成されており、一方の面(図1では、上側の面)に、化粧シート1が積層されている。すなわち、化粧材10は、基材7と、基材7の一方の面に積層された化粧シート1を備える。
化粧シート1は、図1に示すように、印刷基材層2と、模様層3と、表面保護層4を備える。
<印刷基材層>
印刷基材層2は、熱可塑性樹脂を用いて形成されている。
印刷基材層2を形成する熱可塑性樹脂としては、例えば、着色熱可塑性のポリオレフィン系樹脂を用いることが可能である。ポリオレフィン系樹脂としては、例えば、ポリエチレン、ポリプロピレン、ポリメチルペンテン、ポリブテン、エチレン-プロピレン共重合体、エチレン-α-オレフィン共重合体、プロピレン-α-オレフィン共重合体等のポリオレフィン樹脂や、エチレン-酢酸ビニル共重合体、エチレン-ビニルアルコール共重合体、エチレン-(メタ)アクリル酸(エステル)共重合体、エチレン-不飽和カルボン酸共重合体金属中和物(アイオノマー)等のオレフィン系共重合体樹脂等のポリオレフィン系樹脂のうち、単独又は2種以上の混合物、共重合体、複合体、積層体等を用いることが可能である。
印刷基材層2の厚さは、40[μm]以上150[μm]以下の範囲内であることが好ましく、50[μm]以上130[μm]以下であることがより好ましい。これは、印刷基材層2の厚さが40[μm]以上である場合、下地となる床材等の凹凸や段差等を吸収して化粧シート1の施工仕上がりを良好にすることが可能であることに起因する。また、印刷基材層2の厚さが150[μm]以下である場合、印刷基材層2を必要以上に厚く形成することがなく、化粧シート1の製造コストを削減することが可能であることに起因する。
模様層3は、印刷基材層2の一方の面(図1では、上側の面)に積層されており、意匠性を付与するための絵柄を付加するための層である。なお、模様層3は、印刷基材層2の着色で代用することが可能である場合には、省略も可能である。
また、模様層3は、印刷インキ又は塗料等を用いて形成される。模様層3を形成する印刷インキ又は塗料等は、例えば、染料又は顔料等の着色剤を、適当なバインダ樹脂とともに適当な希釈溶媒中に溶解又は分散させて形成される。
模様層3を形成する印刷インキ又は塗料等は、例えば、グラビア印刷法又はオフセット印刷法等の各種印刷法や、グラビアコート法又はロールコート法等の各種塗工法等を用いて塗布される。
絵柄としては、任意の絵柄を用いることが可能であり、例えば、木目柄、石目柄、布目柄、抽象柄、幾何学模様、文字、記号、単色無地等、又はそれらの組み合わせ等を用いること可能である。また、化粧シート1の隠蔽性を向上するために、模様層3と印刷基材層2との間に、隠蔽層を設けてもよい。隠蔽層は、例えば、二酸化チタンや酸化鉄等の不透明顔料を多く含む不透明な印刷インキや塗料を用いて形成する。
また、模様層3には、各種機能を付与するために、例えば、体質顔料、可塑剤、分散剤、界面活性剤、粘着付与剤、接着助剤、乾燥剤、硬化剤、硬化促進剤及び硬化遅延剤等の機能性添加剤を添加してもよい。
さらに、模様層3は、例えば、化粧シート1が貼りつけられる下地の色・模様を隠蔽するために、ベタ塗りされた印刷基材層と、意匠性を付与するための絵柄を付加するための絵柄模様層とを有する構成としてもよい。
表面保護層4は、模様層3の一方の面(図1では、上側の面)に積層されている。すなわち、表面保護層4は、模様層3の印刷基材層2と対向する面と反対側の面に積層されている。また、表面保護層4は、化粧シート1に対して、耐候性、耐傷性、耐汚染性、意匠性等の機能を付与するために設けられた層である。
また、表面保護層4は、例えば、アクリル系樹脂組成物を用いて形成されている。
なお、表面保護層4には、必要に応じて、耐侯剤、可塑剤、安定剤、充填剤、分散剤、染料、顔料等の着色剤、溶剤、紫外線吸収剤、熱安定剤、光安定剤、ブロッキング防止剤、触媒捕捉剤、着色剤、光散乱剤および艶調整剤等の各種添加剤等を含有させてもよい。また、表面保護層4には、必要に応じて、抗菌剤、防カビ剤等の機能性添加剤等を含有させてもよい。
さらに、表面保護層4には、抗ウイルス剤5と、蛍光色素6が添加されている。
表面保護層4に添加する抗ウイルス剤としては、例えば、無機化合物のゼオライト、アパタイト、ジルコニア、シリカ等の物質に、銀、銅、亜鉛等の金属を混合した後に微粉砕して取り込んで形成した抗菌性ゼオライト、抗菌性アパタイト、抗菌性ジルコニア、抗菌性シリカ等の無機系抗菌剤を用いることが可能である。
また、抗ウイルス剤としては、例えば、ジンクピリジオン、2-(4-チアゾリル)-ベンゾイミダゾール、10、10-オキシビスフェノキサノジン、有機チツソイオウハロゲン系、ピリジン-2-チオール-オキシド等を用いることが可能である。
第1実施形態では、表面保護層4に添加する抗ウイルス剤を、銀系の材料を用いて形成した抗ウイルス剤とした場合について説明する。
表面保護層4における抗ウイルス剤の添加量は、表面保護層4の固形分に対して0.2質量部以上15質量部以下の範囲内である。これは、抗ウイルス剤の添加量が0.2質量部以上である場合、抗ウイルス剤が効果的に作用し、抗ウイルス性が向上することと、抗ウイルス剤の添加量が15質量部以下である場合、耐傷性が向上することに起因する。
抗ウイルス剤の平均粒径は、表面保護層4の厚さを基準として、0.5倍以上2倍以下の範囲内である。すなわち、抗ウイルス剤の平均粒径をφとし、表面保護層4の厚さをDとしたときに、0.5≦φ≦2Dの式が成立する。これは、抗ウイルス剤の平均粒径が表面保護層4の0.5倍以上2倍以下の範囲内である場合、抗ウイルス剤と表面保護層4との接触面積の拡大、及び抗ウイルス剤自体の表面積拡大により、抗ウイルス性が良好になることに起因する。
また、抗ウイルス剤の粒径分布は複数のピークを有している。
具体的には、抗ウイルス剤の粒径は2つのピークを有する。そして、2つのピークは、1[μm]以上5[μm]以下の範囲である第1ピークと、5[μm]以上10[μm]以下の範囲である第2ピークとを含んでいる。
ここで、第2ピークは、第1ピークより大きい値とする。粒径のピークが複数存在していることにより、抗ウイルス剤の充填密度がより向上し、抗ウイルス剤をより多く添加することが可能となる。このため、抗ウイルス剤と表面保護層4との接触面積が拡大し、抗ウイルス自体の表面積も拡大することにより、抗ウイルス性が向上する。
表面保護層4にシリコン樹脂を含有させる場合は、シリコン樹脂として、周囲との密着性や相溶性の問題から、変性シリコンを用いることが好ましい。
表面保護層4を構成する硬化型樹脂が紫外線硬化型樹脂又は電子線硬化型樹脂から形成される場合には、変性シリコンは、電離放射線反応性の変性シリコン樹脂であることが好ましい。
表面保護層4を構成する硬化型樹脂が電離放射線硬化型樹脂及び熱硬化型樹脂の混合から形成される場合には、変性シリコンは、電離放射線反応性及び熱反応性の少なくとも一方である変性シリコン樹脂であることが好ましい。
変性シリコンは、反応性変性シリコンと非反応性シリコンとに分類される。
熱反応性の変性シリコンとしては、モノアミン変性シリコン、ジアミン変性シリコン、エポキシ変性シリコン、カルビノール変性シリコン、カルボキシ変性シリコン、メルカプト変性シリコン、シラノール変性シリコン、アルコール変性シリコン、ジオール変性シリコンを例示することが可能である。
変性シリコンの製造メーカとしては、信越化学工業株式会社、東レ・ダウコーニング株式会社、モメンティブ・パフォーマンス・マテリアルズ・ジャパン合同会社、旭化成ワッカーシリコーン株式会社等が挙げられる。
なお、フッ素樹脂は最小レベルの表面張力を示すことが広く知られており、耐汚染材料として好適である。
フッ素樹脂のメーカとしては、ダイキン工業株式会社、三井・デュポンフロロケミカル株式会社等が挙げられる。
表面保護層4が含有するフッ素樹脂の量は、10質量部以上100質量部以下が好ましい。より好ましくは、20質量部以上である。ここで、フッ素樹脂自体が硬化型樹脂であっても良い。
蛍光色素6は、紫外線の照射を受けて発光する色素である。
第1実施形態では、一例として、蛍光色素6が、フルオレセインを用いて形成されている場合について説明する。
表面保護層4に対するフルオレセインの添加量は、表面保護層4の固形分100に対して、0.001以上0.5以下の範囲内である。
これは、表面保護層4に対するフルオレセインの添加量は、表面保護層4の固形分100に対して、0.001未満である場合、紫外線の照射を受けた際に、化粧シート1が抗菌性や抗ウイルス性を有していることを目視により判別することが困難であることに起因する。また、表面保護層4に対するフルオレセインの添加量は、表面保護層4の固形分100に対して、0.5を超えている場合、模様層3に形成された柄の色調によっては、太陽光の照射を受けた際においてフルオレセインに由来する色が視認されることに起因する。
以下、図1を参照して、化粧シート1の製造方法について説明する。
第1実施形態の化粧シート1を製造する際には、表面保護層4に抗ウイルス剤5を添加する場合には、表面保護層4に蛍光色素6を添加する。一方、第1実施形態とは異なり、表面保護層4に抗ウイルス剤5を添加しない場合には、表面保護層4に蛍光色素6を添加しない。
なお、上述した第1実施形態は、本発明の一例であり、本発明は、上述した第1実施形態に限定されることはなく、この実施形態以外の形態であっても、本発明に係る技術的思想を逸脱しない範囲であれば、設計等に応じて種々の変更が可能である。
第1実施形態の化粧シート1であれば、以下に記載する効果を奏することが可能となる。
(1)印刷基材層2と、印刷基材層2の一方の面に積層された模様層3と、模様層3の印刷基材層2と対向する面と反対側の面に積層された表面保護層4とを備え、表面保護層4には、抗ウイルス剤5と蛍光色素6が添加されている。
このため、蛍光色素6が発光することで、非破壊で、化粧シート1が、抗ウイルス性を有する化粧シート1であることを確認することが可能となる。
その結果、化粧シート1が抗ウイルス性を有していることを目視により非破壊で確認することが可能な、化粧シート1を提供することが可能となる。
その結果、化粧シート1を使用する環境が、通常の環境である場合には、違和感が少ない意匠性を有する化粧シート1を提供することが可能となる。
その結果、化粧シート1が抗ウイルス性を有していることを目視により確認するために、蛍光色素6の添加量を増加させる必要がないため、他物性への影響を低減させることが可能となる。これに加え、コストの増加を抑制することが可能となる。さらに、化粧シート1が抗ウイルス性を有していることを目視により確認するために、必要充分な蛍光を発生させることが可能となる。
その結果、紫外線の照射を受けた際に、化粧シート1が抗菌性や抗ウイルス性を有していることを目視により判別することが容易となる。これに加え、太陽光の照射を受けた際において、フルオレセインに由来する色が視認されることを抑制することが可能となる。
また、第1実施形態の化粧材10であれば、以下に記載する効果を奏することが可能となる。
このため、蛍光色素6が発光することで、非破壊で、化粧シート1が、抗ウイルス性を有する化粧シート1であることを確認することが可能となる。
その結果、化粧シート1が抗ウイルス性を有していることを目視により非破壊で確認することが可能な、化粧材10を提供することが可能となる。
また、第1実施形態の化粧シート1の製造方法であれば、以下に記載する効果を奏することが可能となる。
このため、蛍光色素6が発光することで、非破壊で、化粧シート1が、抗ウイルス性を有する化粧シート1であることを確認することが可能となる。
その結果、化粧シート1が抗ウイルス性を有していることを目視により非破壊で確認することが可能な、化粧シート1の製造方法を提供することが可能となる。
以下、図1を参照しつつ、図2を用いて、化粧材10の構成について説明する。なお、上述した第1実施形態と同様の構成については、説明を省略する場合がある。
化粧材10は、図2に示すように、化粧シート1と、基材7を備える。
化粧シート1は、図2に示すように、印刷基材層2と、模様層3と、紫外線吸収層8と、表面保護層4を備える。
<紫外線吸収層>
紫外線吸収層8は、表面保護層4と模様層3との間に配置された層であり、紫外線吸収剤が添加されている。
紫外線吸収剤としては、例えば、BASFジャパン株式会社製の「チヌビン400」を用いることが可能である。
なお、上述した第2実施形態は、本発明の一例であり、本発明は、上述した第2実施形態に限定されることはなく、この実施形態以外の形態であっても、本発明に係る技術的思想を逸脱しない範囲であれば、設計等に応じて種々の変更が可能である。
第2実施形態の化粧シート1であれば、第1実施形態の効果に加え、さらに、以下に記載する効果を奏することが可能となる。
(1)表面保護層4と模様層3との間に配置された紫外線吸収層8をさらに備え、紫外線吸収層8には紫外線吸収剤が添加されている。
その結果、高い蛍光性能を発揮することが可能であるとともに、耐候性能を発揮することが可能な化粧シート1を提供することが可能となる。
以下、図1を参照しつつ、図3を用いて、化粧材10の構成について説明する。なお、上述した第1実施形態と同様の構成については、説明を省略する場合がある。
化粧シート1は、図3に示すように、模様層3と、印刷基材層2と、表面保護層4を備える。
なお、第3実施形態の構成は、印刷基材層2が模様層3の一方の面(図3では、上側の面)に積層されている点と、印刷基材層2が透明な樹脂(例えば、透明ポリプロピレン樹脂)を用いて形成されている点と、表面保護層4が印刷基材層2の模様層3と対向する面と反対側の面(図3では、上側の面)に積層されている点を除き、第1実施形態と同様である。
以下、図3を参照して、化粧シート1の製造方法について説明する。
第3実施形態の化粧シート1を製造する際には、表面保護層4に抗ウイルス剤5を添加する場合には、表面保護層4に蛍光色素6を添加する。一方、第1実施形態とは異なり、表面保護層4に抗ウイルス剤5を添加しない場合には、表面保護層4に蛍光色素6を添加しない。
なお、上述した第3実施形態は、本発明の一例であり、本発明は、上述した第3実施形態に限定されることはなく、この実施形態以外の形態であっても、本発明に係る技術的思想を逸脱しない範囲であれば、設計等に応じて種々の変更が可能である。
第3実施形態の化粧シート1であれば、第1実施形態の効果に加え、さらに、以下に記載する効果を奏することが可能となる。
(1)模様層3と、模様層3の一方の面に積層され、且つ透明な樹脂を用いて形成された印刷基材層2と、印刷基材層2の模様層3と対向する面と反対側の面に積層された表面保護層4とを備え、表面保護層4には、抗ウイルス剤5と蛍光色素6が添加されている。
このため、蛍光色素6が発光することで、非破壊で、化粧シート1が、抗ウイルス性を有する化粧シート1であることを確認することが可能となる。
その結果、化粧シート1が抗ウイルス性を有していることを目視により非破壊で確認することが可能な、化粧シート1を提供することが可能となる。
また、第3実施形態の化粧シート1の製造方法であれば、以下に記載する効果を奏することが可能となる。
このため、蛍光色素6が発光することで、非破壊で、化粧シート1が、抗ウイルス性を有する化粧シート1であることを確認することが可能となる。
その結果、化粧シート1が抗ウイルス性を有していることを目視により非破壊で確認することが可能な、化粧シート1の製造方法を提供することが可能となる。
(1)実施形態では、表面保護層4に抗ウイルス剤5が添加されている構成としたが、これに限定するものではなく、表面保護層4に抗菌剤が添加されている構成としてもよい。
(2)実施形態では、蛍光色素6を、紫外線の照射を受けて発光する色素としたが、これに限定するものではなく、蛍光色素6を、太陽光の照射を受けて発光しない色素、又は、太陽光の照射を受けて目視が不可能な明るさで発光する色素としてもよい。
(3)実施形態では、化粧材10の構成を、基材7の一方の面に積層された化粧シート1を備える構成としたが、これに限定するものではない。すなわち、化粧材10の構成を、基材7の一方の面に加え、基材7の他方の面(図1及び図2では、下側の面)に積層された化粧シート1を備える構成としてもよい。
(実施例1)
印刷基材層は、着色ポリエチレン樹脂のシートを用いて、厚さを70[μm]として形成した。
模様層は、印刷基材層の一方の面に対し、グラビア印刷によって、グラビア印刷用インキ(東洋インキ製:「V351」)を用いて形成した。模様層を形成した後、40[℃]環境下において、1日かけてエージングを行った。
その後、模様層の一方の面に対し、塗布量を1[g/m2]として、アンカーコート樹脂を、主剤(三井化学製:「タケラックA3210」)100質量部に対して、硬化剤(三井化学製:「タケネートA50」)を20質量部添加し、グラビアコーティングした。
なお、耐候処方は、BASFジャパン株式会社製の「チヌビン234」0.3質量部と、BASFジャパン株式会社製の「チヌビン783」0.3質量部とを、溶融混錬することで施した。
これに加え、接着性官能基を有するポリプロピレン樹脂(三井化学製:「QF551」)の層を、10[μm]の厚さで形成した。
そして、アンカーコートと、接着性官能基を有するポリプロピレン樹脂のシートと、接着性官能基を有するポリプロピレン樹脂の層が隣接するように、共押出ラミネート加工した。
その後、接着性官能基を有するポリプロピレン樹脂の層に対してコロナ処理を行い、コロナ処理を行った面に、表面保護層を積層して、実施例1の化粧シートを形成した。表面保護層の構成については、以下に記載する。
なお、蛍光色素として用いる「フルオレセイン」としては、富士フイルム和光純薬株式会社製のフルオレセイン(CasNo:2321-07-05、化学式:C20H1205)を用いた。
表面保護層の塗布量は、3[g/m2]とした。
紫外線吸収層を備える構成とした点を除き、実施例1と同様に形成して、実施例2の化粧シートを形成した。
紫外線吸収層は、ベース材料として「UCクリヤー」を用い、紫外線吸収剤として、BASFジャパン株式会社製の「チヌビン400」を、「UCクリヤー」100質量部に対して3質量部添加した。これに加え、光安定剤として、BASFジャパン株式会社製の「チヌビン292」を、「UCクリヤー」100質量部に対して2質量部添加した。
紫外線吸収層の塗布量は、3[g/m2]とした。
表面保護層に抗ウイルス剤と蛍光色素を添加していない点を除き、実施例2と同様に形成して、比較例1の化粧シートを形成した。
(比較例2)
表面保護層に蛍光色素を添加していない点を除き、実施例1と同様に形成して、比較例2の化粧シートを形成した。
(比較例3)
表面保護層に蛍光色素を添加していない点を除き、実施例2と同様に形成して、比較例3の化粧シートを形成した。
表1に示す構成をそれぞれ有する、実施例1及び2の化粧材と、比較例1から3の化粧材に対し、それぞれ、意匠性、蛍光状態、外観の変化を評価した。評価方法としては、以下に記載した方法を用いた。
外観を目視で確認することで、意匠性を評価した。
<蛍光状態>
アズワン製社:「ハンディーUVランプ SLUV-4」を用いて、化粧シートに紫外線(UV光)を照射し、表面保護層の蛍光状態を確認した。さらに、化粧シートに太陽光の照射を受けさせて、表面保護層の蛍光状態を確認した。これらの結果により、蛍光状態を評価した。
サンシャインウェザーメーター(ブラックパネルの温度が63[℃]、照射時間を120分とし、照射中において12分の降雨を実施)を用いた耐候試験を実施し、耐候試験を500時間から2000時間まで500時間刻みで外観の変化を確認して、外観の変化を評価した。
Claims (9)
- 印刷基材層と、
前記印刷基材層の一方の面に積層された模様層と、
前記模様層の前記印刷基材層と対向する面と反対側の面に積層された表面保護層と、を備え、
前記表面保護層には、抗菌剤及び抗ウイルス剤のうち少なくとも一方と、蛍光色素と、が添加されている化粧シート。 - 前記表面保護層と前記模様層との間に配置された紫外線吸収層をさらに備え、
前記紫外線吸収層に、紫外線吸収剤が添加されている請求項1に記載した化粧シート。 - 模様層と、
前記模様層の一方の面に積層され、且つ透明な樹脂を用いて形成された印刷基材層と、
前記印刷基材層の前記模様層と対向する面と反対側の面に積層された表面保護層と、を備え、
前記表面保護層には、抗菌剤及び抗ウイルス剤のうち少なくとも一方と、蛍光色素と、が添加されている化粧シート。 - 前記蛍光色素は、紫外線の照射を受けて発光する請求項1から請求項3のうちいずれか1項に記載した化粧シート。
- 前記蛍光色素は、フルオレセインを用いて形成されている請求項1から請求項4のうちいずれか1項に記載した化粧シート。
- 前記蛍光色素は、フルオレセインを用いて形成され、
前記表面保護層に対する前記フルオレセインの添加量は、前記表面保護層の固形分100に対して0.001以上0.5以下の範囲内である請求項1から請求項5のうちいずれか1項に記載した化粧シート。 - 基材と、
前記基材の少なくとも一方の面に積層された請求項1から請求項6のうちいずれか1項に記載した化粧シートと、を備える化粧材。 - 印刷基材層と、
前記印刷基材層の一方の面に積層された模様層と、
前記模様層の前記印刷基材層と対向する面と反対側の面に積層された表面保護層と、を備える化粧シートの製造方法であって、
前記表面保護層に抗菌剤及び抗ウイルス剤のうち少なくとも一方を添加する場合には、前記表面保護層に蛍光色素を添加し、
前記表面保護層に前記抗菌剤又は前記抗ウイルス剤を添加しない場合には、前記表面保護層に前記蛍光色素を添加しない化粧シートの製造方法。 - 模様層と、
前記模様層の一方の面に積層され、且つ透明な樹脂を用いて形成された印刷基材層と、
前記印刷基材層の前記模様層と対向する面と反対側の面に積層された表面保護層と、を備える化粧シートの製造方法であって、
前記表面保護層に抗菌剤及び抗ウイルス剤のうち少なくとも一方を添加する場合には、前記表面保護層に蛍光色素を添加し、
前記表面保護層に前記抗菌剤又は前記抗ウイルス剤を添加しない場合には、前記表面保護層に前記蛍光色素を添加しない化粧シートの製造方法。
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