WO2021131821A1 - Pigment, composition, et article - Google Patents

Pigment, composition, et article Download PDF

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Publication number
WO2021131821A1
WO2021131821A1 PCT/JP2020/046428 JP2020046428W WO2021131821A1 WO 2021131821 A1 WO2021131821 A1 WO 2021131821A1 JP 2020046428 W JP2020046428 W JP 2020046428W WO 2021131821 A1 WO2021131821 A1 WO 2021131821A1
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WIPO (PCT)
Prior art keywords
layer
pigment
polarizing
polarizing layer
composition
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PCT/JP2020/046428
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English (en)
Japanese (ja)
Inventor
健吾 富岡
千博 加藤
茉友 椎名
環 川元
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日本ペイントホールディングス株式会社
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Publication of WO2021131821A1 publication Critical patent/WO2021131821A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02—Preparations containing skin colorants, e.g. pigments
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/023—Optical properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/10—Treatment with macromolecular organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D201/00—Coating compositions based on unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular

Definitions

  • the present invention relates to pigments, compositions and articles.
  • Pigments are contained in, for example, paints and cosmetics, and have a function of imparting design to an object on which the paint is applied and beautifying the human body to which the cosmetics are rubbed.
  • Majora (registered trademark) paint manufactured by Nippon Paint Co., Ltd. is a paint that gives a high degree of design to the object.
  • This Majora paint contains a chroma flare pigment.
  • This chromaflare pigment has a five-layer structure, so that about 50% of the incident light is reflected by the surface layer and the remaining about 50% is reflected by the central Opaque Reflector Metal. It is set. Due to this spectral effect, interference wavelengths are generated, and the color changes depending on the viewing angle of the object, and the Majora paint expresses high design.
  • chromaflare pigments and Majora paints containing those pigments have the disadvantage of being extremely expensive.
  • Patent Document 1 there is no specific description of actually producing the multilayer reflective pigment, and there is no description of specific experimental results using the multilayer reflective pigment.
  • an object of the present invention is to provide a pigment that is cheaper and can exhibit high designability or cosmeticity.
  • Another object of the present invention is to provide a composition containing such a pigment.
  • Another object of the present invention is to provide an article having a high degree of design.
  • the pigment according to the present invention is a pigment containing a multi-layer structure.
  • the multilayer structure in order, Polarizing layer and A pigment that includes a birefringent layer. Thereby, it is cheaper and can exhibit high designability or cosmeticity.
  • the multilayer structure is sequentially arranged.
  • the polarizing layer first polarizing layer
  • the birefringent layer Includes a reflective layer or a second polarizing layer.
  • composition according to the present invention is a composition containing any of the above pigments.
  • the composition is a coating composition.
  • the composition is a cosmetic composition or a decorative composition.
  • the article according to the present invention is an article having a coating film using any of the above compositions. Thereby, it is possible to provide an article having a high design property.
  • the present invention it is possible to provide a pigment that is cheaper and can exhibit high designability or cosmeticity. According to the present invention, it is possible to provide a composition containing such a pigment. According to the present invention, it is possible to provide an article having a high degree of design.
  • FIG. 1 is a schematic view showing a cross section of an example of a multilayer structure of a pigment according to the present invention.
  • FIG. 2 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • FIG. 3 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • FIG. 4 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • FIG. 5 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • FIG. 6 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • FIG. 1 is a schematic view showing a cross section of an example of a multilayer structure of a pigment according to the present invention.
  • FIG. 2 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to
  • FIG. 7 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • FIG. 8 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • FIG. 9 is a schematic view showing a cross section of another example of the pigment according to the present invention.
  • FIG. 10 is a schematic view showing a cross section of another example of the pigment according to the present invention.
  • the paint and the paint composition can be used interchangeably.
  • visible light refers to an electromagnetic wave having a wavelength in the range of 380 to 780 nm.
  • transmission and passage can be used interchangeably.
  • 380 to 780 nm means 380 nm or more and 780 nm or less.
  • the attached drawing is a schematic diagram that prioritizes easy understanding of the multi-layer structure of pigments, so the scale of each layer is not accurate.
  • the pigment according to the present invention is a pigment containing a multi-layer structure.
  • the multilayer structure in order, Polarizing layer and A pigment that includes a birefringent layer.
  • the mechanism by which the pigment of the present invention expresses high designability is as follows. (1) Of the natural light incident from the polarizing layer (first polarizing layer) in the pigment of the present invention, linearly polarized light parallel to the transmission axis (polarization axis) of the polarizing layer passes through the polarizing layer. (2) Next, when the linearly polarized light passes through the birefringent layer, the polarized state changes.
  • the above (1) and (2) occur at each wavelength of visible light (that is, each color), and the polarization state after passing through the birefringence layer in (2) is different at each wavelength.
  • the light whose polarization state has changed is the second polarization layer (the first polarization layer in another pigment of the present invention located in the traveling direction, or the second polarization in the same pigment.
  • the proportion of the vibration component parallel to the transmission axis of the second polarizing layer is different because the polarization state is different at each wavelength, so the intensity of the light transmitted through the second polarizing layer at each wavelength is different. Is different.
  • Colors corresponding to wavelengths with high transmitted light intensity appear strong to the observer, and colors corresponding to wavelengths with weak transmitted light intensity appear weak to the observer, and these colors are combined. The color is observed by the observer.
  • the color finally observed changes depending on the positions of a plurality of pigments existing in the coating film using the pigment, the thickness of the birefringent layer, the angle at which the coating film is observed, and the like, resulting in high designability. Is expressed.
  • the pigment according to the present invention includes a multilayer structure, and the multilayer structure includes, in order, a polarizing layer and a birefringent layer.
  • FIG. 1 is a schematic view showing a cross section of an example of a multilayer structure of a pigment according to the present invention.
  • the multilayer structure 10 includes a polarizing layer 20 and a birefringent layer 30 in order.
  • FIG. 2 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • the multilayer structure 10 includes, in order, a polarizing layer (first polarizing layer) 20, a birefringent layer 30, and a second polarizing layer 21.
  • FIG. 3 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • the multilayer structure 10 includes a polarizing layer 20, a birefringent layer 30, and a reflecting layer 40 in order.
  • FIG. 4 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • the multilayer structure 10 includes a polarizing layer 20, an adhesive layer 50, and a birefringent layer 30 in order.
  • FIG. 5 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • the multilayer structure 10 includes, in order, a polarizing layer (first polarizing layer) 20, an adhesive layer 50, a birefringent layer 30, an adhesive layer 50, and a second polarizing layer 21.
  • FIG. 6 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • the multilayer structure 10 includes a polarizing layer 20, an adhesive layer 50, a birefringent layer 30, an adhesive layer 50, and a reflective layer 40 in order.
  • FIG. 7 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • the multilayer structure 11 includes a polarizing layer 20 and a birefringent layer 30 in order.
  • the pigment 1 has a spherical core-shell type multilayer structure 11, the core portion of which is the birefringent layer 30, and the shell portion of which is the polarizing layer 20.
  • FIG. 8 is a schematic view showing a cross section of another example of the multilayer structure of the pigment according to the present invention.
  • the multilayer structure 11 includes a polarizing layer 20 and a birefringent layer 30 in order.
  • the pigment 1 has a rectangular parallelepiped core-shell type multilayer structure 11, the core portion of which is the birefringent layer 30, and the shell portion of which is the polarizing layer 20.
  • the polarizing layer is a layer having a function of polarizing natural light such as sunlight and artificial light.
  • the multilayer structure of the pigment according to the present invention includes two or more polarizing layers such as the second polarizing layer described later, the polarizing layer described here is treated as the first polarizing layer.
  • the polarizing layer is not particularly limited, and can be appropriately selected from known polarizing layers.
  • the polarizing layer include a linearly polarized light layer, a circularly polarized light layer, and an elliptical polarized light layer, depending on the type of polarized light after passing through the polarized light layer.
  • the polarizing layer may be an absorption type polarizing layer that absorbs light that does not pass through the polarizing layer, or may be a reflection type polarizing layer that reflects light that does not pass through the polarizing layer.
  • Examples of the absorption type polarizing layer include a dichroic dye-based polarizing layer, a polyene-based polarizing layer, and a wire grid polarizing layer.
  • Examples of the absorption type polarizing layer include those described in JP-A-2014-197163, JP-A-2013-130882, and JP-A-2017-090637.
  • dichroic dye-based polarizing layer examples include a hydrophilic polymer film such as a polyvinyl alcohol-based film, a partially formalized polyvinyl alcohol-based film, and an ethylene / vinyl acetate copolymer system partially saponified film, and dichroic or dichroic. Examples thereof include those obtained by adsorbing a dichroic substance such as a dye and stretching the film uniaxially.
  • the polarizing layer is at least one selected from the group consisting of a linear polarizing layer, a circular polarizing layer, and an elliptically polarizing layer. In another embodiment, the polarizing layer is a linearly polarized layer.
  • the polarizing layer is at least one selected from the group consisting of a dichroic dye-based polarizing layer, a polyene-based polarizing layer, and a wire grid polarizing layer. In another embodiment, the polarizing layer is a dichroic dye-based polarizing layer.
  • a commercially available product may be used as the polarizing layer.
  • Examples of commercially available polarizing layers include Polar Techno's trade name SKN-18243T (absorbent polarizing film, iodine-based); SHC-215U, SHC-115U, SHC-125U, SHC-13U, SHC-B15U, SHC- B25U, SHC-SR3UL2S, VHC-12, VHC-128 (absorbent polarizing film, dye type); SKN-18243HN-31, SKN-18243HN-33 (semi-absorbent / semi-reflective polarizing film, iodine type); SHC- 115UH-31, SHC-115UH-33, SHC-115UH-41, SHC-125UH-31, SHC-125UH-33, SHC-125UH-41 (semi-absorbent / semi-reflective polarizing film, dye type); T1-
  • the thickness of the polarizing layer may be appropriately adjusted, for example, 0.5 to 500 ⁇ m, preferably 10 to 250 ⁇ m. In one embodiment, the thickness of the polarizing layer is 10 ⁇ m or more, 20 ⁇ m or more, 30 ⁇ m or more, 40 ⁇ m or more, 50 ⁇ m or more, 60 ⁇ m or more, 70 ⁇ m or more, 80 ⁇ m or more, 90 ⁇ m or more, 100 ⁇ m or more, 110 ⁇ m or more, 120 ⁇ m or more, 130 ⁇ m or more.
  • 140 ⁇ m or more 150 ⁇ m or more, 160 ⁇ m or more, 170 ⁇ m or more, 180 ⁇ m or more, 190 ⁇ m or more, 200 ⁇ m or more, 210 ⁇ m or more, 220 ⁇ m or more, 230 ⁇ m or more, 240 ⁇ m or more, or 250 ⁇ m or more.
  • the thickness of the polarizing layer is 250 ⁇ m or less, 240 ⁇ m or less, 230 ⁇ m or less, 220 ⁇ m or less, 210 ⁇ m or less, 200 ⁇ m or less, 190 ⁇ m or less, 180 ⁇ m or less, 170 ⁇ m or less, 160 ⁇ m or less, 150 ⁇ m or less, 140 ⁇ m or less, 130 ⁇ m.
  • 120 ⁇ m or less 110 ⁇ m or less, 100 ⁇ m or less, 90 ⁇ m or less, 80 ⁇ m or less, 70 ⁇ m or less, 60 ⁇ m or less, 50 ⁇ m or less, 40 ⁇ m or less, 30 ⁇ m or less, 20 ⁇ m or less or 10 ⁇ m or less.
  • the polarizing layer may or may not transmit light having wavelengths in other regions (for example, infrared rays and ultraviolet rays) as long as it can transmit at least a part of visible light.
  • each polarizing layer may have the same material; the type of polarized light transmitted; the type of the polarizing layer; and the thickness, etc., or may be different. ..
  • the number of polarizing layers in the multi-layer structure of the pigment may be one layer or two or more layers. In one embodiment, the number of polarizing layers in the multi-layered structure of the pigment is one. In another embodiment, the number of polarizing layers in the multi-layered structure of the pigment is two.
  • the birefringent layer is a layer having a function of changing the polarization state of the light transmitted through the polarizing layer.
  • the birefringent layer can be appropriately selected from known birefringent layers and retardation layers.
  • a 1/2 wave plate ⁇ / 2 double refraction layer or ⁇ / 2 retardation layer
  • a 1/4 wave plate ⁇ / 4 compound refracting layer or ⁇ / 4 retardation layer
  • a C plate ⁇ / 4 compound refracting layer or ⁇ / 4 retardation layer
  • the birefringent layer is at least one selected from the group consisting of a 1/2 wave plate, a 1/4 wave plate, and a C plate. In another embodiment, the birefringent layer is at least one selected from the group consisting of 1/2 wave plates and 1/4 wave plates.
  • the phase difference due to the birefringent layer is at least one selected from the group consisting of one wavelength (360 °), 1/2 wavelength (180 °) and 1/4 wavelength (90 °). In another embodiment, the phase difference due to the birefringent layer is at least one selected from the group consisting of 1/2 wavelength (180 °) and 1/4 wavelength (90 °). In yet another embodiment, the phase difference due to the birefringent layer is 1/2 wavelength (180 °). In one embodiment, the phase difference is a value at a wavelength of 380 nm. In another embodiment, the phase difference is a value at a wavelength of 550 nm. In another embodiment, the phase difference is a value at a wavelength of 780 nm.
  • birefringent layer examples include a birefringent film containing a thermoplastic resin, an alignment film in which a liquid crystal monomer is oriented and then crosslinked and polymerized, an alignment film of a liquid crystal polymer, and a film in which an alignment layer of a liquid crystal polymer is laminated.
  • a birefringent film containing a thermoplastic resin an alignment film in which a liquid crystal monomer is oriented and then crosslinked and polymerized
  • an alignment film of a liquid crystal polymer examples of the birefringent layer described in JP2013-130882A can be mentioned.
  • a commercially available product may be used for the birefringent layer.
  • Commercially available products of the compound refractive layer include, for example, cellophane film, cellophane tape; Zeonoa film manufactured by Nippon Zeon (registered trademark); Pure Ace manufactured by Teijin (registered trademark); WV film manufactured by Fujifilm; JX liquid crystal. Examples include NH film and NV film manufactured by the company.
  • the thickness of the birefringent layer may be appropriately adjusted in consideration of the function of changing the polarization state of the light transmitted through the polarizing layer, for example, 0.1 ⁇ m to 3.0 mm, preferably 1 ⁇ m to 1 mm. , More preferably 5 to 100 ⁇ m. In one embodiment, the thickness of the birefringent layer is 5 ⁇ m or more, 10 ⁇ m or more, 20 ⁇ m or more, 30 ⁇ m or more, 40 ⁇ m or more, 50 ⁇ m or more, 60 ⁇ m or more, 70 ⁇ m or more, 80 ⁇ m or more, 90 ⁇ m or more or 100 ⁇ m or more.
  • the thickness of the birefringent layer is 100 ⁇ m or less, 90 ⁇ m or less, 80 ⁇ m or less, 70 ⁇ m or less, 60 ⁇ m or less, 50 ⁇ m or less, 40 ⁇ m or less, 30 ⁇ m or less, 20 ⁇ m or less, 10 ⁇ m or less or 5 ⁇ m or less.
  • the birefringent layer may or may not transmit light having wavelengths in other regions (for example, infrared rays and ultraviolet rays) as long as it can transmit at least a part of visible light.
  • the polarizing layer and the birefringent layer may be arranged adjacent to each other as shown in FIGS. 1 to 3, for example, as shown in FIGS. 4 to 6. It may be arranged via another one or more layers such as an adhesive layer.
  • the polarizing layer and the birefringent layer can be arranged adjacent to each other without using the adhesive layer.
  • the layer A and the layer B may be adjacent to each other, or one or two or more other layers may be provided between the layer A and the layer B. Indicates that it may exist. The same applies when the number of layers is three or more.
  • each birefringent layer may have the same material; the type of the birefringent layer; and the thickness, etc., or may be different.
  • the number of birefringent layers in the multi-layer structure of the pigment may be one layer or two or more layers.
  • the multilayer structure is sequentially arranged.
  • the polarizing layer first polarizing layer
  • the birefringent layer Includes a reflective layer or a second polarizing layer.
  • the reflective layer reflects light (visible light) such as light transmitted through a multilayer structure such as a polarizing layer and a compound refracting layer (visible light); or light transmitted through a multilayer structure of another pigment (visible light). It is a layer having a function to perform.
  • the reflective layer may have a function of reflecting light as described above, and a known reflective layer such as an optical laminate can be used.
  • a known reflective layer such as an optical laminate can be used.
  • the reflective layer include a thin film made of a metal such as Al, Sn, Cu, Au, Ag, Cr, and Fe, a metal vapor deposition film, a plating, and a metal base material; for example, Sb 2 S 3 , Fe 2 O 3 , and TIO.
  • a permeable thin film made of such an inorganic material a laminate obtained by laminating a permeable thin film made of these inorganic materials can be used.
  • the bright material-containing coating film described in JP-A-2003-294622 and JP-A-2002-114940 may be used as the reflective layer.
  • the reflective layer is at least one selected from the group consisting of an aluminum thin film (aluminum foil), a metal vapor deposition film, plating, a glitter material-containing coating film, and a metal substrate.
  • the number of reflective layers in the multi-layer structure of the pigment may be one layer or two or more layers. In one embodiment, when there are two or more reflective layers, the entire surface of the two layers, which is the outermost layer of the multilayer structure, is not a reflective layer. In another embodiment, when there are two reflective layers, the layer located between the two reflective layers is an adhesive layer described later.
  • the function of the second polarizing layer; the material; the type of polarized light transmitted through; the type of the polarizing layer; and the thickness are as described in the above-mentioned polarizing layer.
  • the second polarizing layer is at least one selected from the group consisting of a linear polarizing layer, a circular polarizing layer, and an elliptically polarizing layer.
  • the second polarizing layer is a linear polarizing layer.
  • the first polarizing layer and the second polarizing layer are at least one selected from the group consisting of a linear polarizing layer, a circular polarizing layer, and an elliptically polarizing layer.
  • the first polarizing layer and the second polarizing layer are linearly polarized layers.
  • the second polarizing layer is at least one selected from the group consisting of a dichroic dye-based polarizing layer, a polyene-based polarizing layer, and a wire grid polarizing layer.
  • the second polarizing layer is a dichroic dye-based polarizing layer.
  • the first polarizing layer and the second polarizing layer are at least one selected from the group consisting of a dichroic dye-based polarizing layer, a polyene-based polarizing layer, and a wire grid polarizing layer.
  • the first polarizing layer and the second polarizing layer are dichroic dye-based polarizing layers.
  • the transmission axis of the second polarizing layer may or may not be orthogonal to the transmission axis of the first polarizing layer. In one embodiment, the transmission axis of the second polarizing layer is orthogonal to the transmission axis of the first polarizing layer.
  • the adhesive layer is a layer having a function of adhering one or two layers adjacent to the adhesive layer.
  • the adhesive layer include a photosensitive adhesive (UV curable adhesive) and a pressure sensitive adhesive.
  • the material of the adhesive layer include a thermoplastic resin, an acrylic resin, and a silicone resin.
  • adhesive resins and adhesive resins described in JP-A-2014-197163 can be mentioned.
  • the adhesive layer may or may not transmit light having wavelengths in other regions (for example, infrared rays and ultraviolet rays) as long as it can transmit at least a part of visible light.
  • the thickness of the adhesive layer is not particularly limited, and is, for example, 0.001 to 2 mm, preferably 0.01 to 1 mm, and more preferably 0.05 to 0.5 mm. In one embodiment, the thickness of the adhesive layer is 0.05 mm or more, 0.1 mm or more, 0.2 mm or more, 0.3 mm or more, 0.4 mm or more, or 0.5 mm or more. In another embodiment, the thickness of the adhesive layer is 0.5 mm or less, 0.4 mm or less, 0.3 mm or less, 0.2 mm or less, 0.1 mm or less or 0.05 mm or less.
  • the multilayer structure of the pigment of the present invention may include the polarizing layer and the birefringent layer in this order, and the shape is not limited.
  • the multilayer structure may be a laminated structure (for example, the multilayer structure 10 in FIG. 1), a spherical shape (for example, the multilayer structure 11 in FIG. 7), a substantially spherical shape, an ellipsoidal shape, a cubic shape, or a rectangular parallelepiped shape (for example, a rectangular parallelepiped structure).
  • it may have a multilayer structure 11) in FIG. 8 and a cylindrical core-shell structure.
  • the number of layers of the multi-layer structure of the pigment of the present invention is at least two because it includes a polarizing layer and a birefringent layer.
  • the number of layers of the multilayer structure may be two layers, three layers, four layers, five layers, six layers, seven layers, eight layers, nine layers or ten layers.
  • the pigment of the present invention may contain layers other than the above-mentioned layers inside or outside the multilayer structure. Examples of such other layers include the surface treatment layer and the surface tension adjusting layer described in International Publication No. 2018/034261.
  • FIG. 9 is a schematic view showing a cross section of another example of the pigment according to the present invention.
  • the pigment 1 includes a surface treatment layer 60 that covers the periphery of the multilayer structure 10.
  • FIG. 10 is a schematic view showing a cross section of another example of the pigment according to the present invention.
  • the pigment 1 includes a surface treatment layer 60 that covers the periphery of the multilayer structure 10, and a surface tension adjusting layer 70 that covers the periphery of the surface treatment layer 60.
  • the pigment of the present invention may contain one or more layers selected from the group consisting of a surface treatment layer and a surface tension adjusting layer in at least a part around the multilayer structure.
  • the surface treatment layer and the surface tension adjusting layer for example, those described in International Publication No. 2018/034261 can be used.
  • the surface treatment layer may cover at least a part of the periphery of the multilayer structure (for example, side surface; one surface other than the side surface; two surfaces other than the side surface), or may cover the entire periphery of the multilayer structure.
  • the thickness of the surface treatment layer is, for example, 0.5 to 15 nm, preferably 1 to 10 nm.
  • the surface tension adjusting layer may cover at least a part (for example, side surface; one surface other than the side surface; two surfaces other than the side surface) around the multilayer structure or the surface treatment layer, or may cover the periphery of the multilayer structure or the surface treatment layer. It may cover the whole.
  • the thickness of the surface tension adjusting layer is, for example, 0.1 to 10 nm, preferably 0.1 to 5 nm.
  • the multilayer structure of the pigment is, in order, a two-layer structure of a polarizing layer and a birefringent layer, and a laminated structure.
  • the multilayer structure of the pigment is, in order, a three-layer structure of a first polarizing layer, a birefringent layer, and a second polarizing layer.
  • the multilayer structure of the pigment is, in order, a three-layer structure of a polarizing layer, a birefringent layer, and a reflective layer.
  • the multilayer structure of the pigment in turn, comprises a polarizing layer (first polarizing layer), a birefringent layer, and a reflective layer or a second polarizing layer, where the reflective layer is present.
  • the birefringent layer is a ⁇ / 2 birefringent layer.
  • the multilayer structure of the pigment is, in order, a three-layer structure of a polarizing layer, an adhesive layer, and a birefringent layer.
  • the multilayer structure of the pigment is, in order, a five-layer structure of a first polarizing layer, an adhesive layer, a birefringent layer, an adhesive layer, and a second polarizing layer.
  • the multilayer structure of the pigment is, in order, a five-layer structure of a polarizing layer, an adhesive layer, a birefringent layer, an adhesive layer, and a reflective layer.
  • the multilayer structure of the pigment in turn, comprises a polarizing layer, an adhesive layer, a birefringent layer, an adhesive layer and a reflective layer, and the birefringent layer is a ⁇ / 2 birefringent layer.
  • the multilayer structure of the pigment is, in order, a two-layer structure of a polarizing layer and a birefringent layer, and a spherical, substantially spherical or ellipsoidal core-shell structure.
  • the multilayer structure of the pigment is, in order, a two-layer structure of a polarizing layer and a birefringent layer, and a rectangular parallelepiped or cubic core-shell structure.
  • the shape of the pigment of the present invention is not particularly limited, and examples thereof include a laminated body shape or a flat plate shape; a spherical shape; a substantially spherical shape; an ellipsoidal shape; a cubic shape; a rectangular parallelepiped shape; a prismatic shape; a columnar shape; and an indefinite shape. ..
  • the shape of the pigment of the present invention is at least one selected from the group consisting of flat plate, spherical and substantially spherical.
  • the dimensions of the pigment of the present invention may be appropriately adjusted according to, for example, a desired appearance.
  • the dimensions of the long sides are 0.1 ⁇ m to 3 cm; the thickness is 0.6 ⁇ m to 6 mm.
  • the average particle size is 0.6 ⁇ m to 6 mm.
  • the average particle size means the volume average particle size (D50) of the pigment-dispersed particles.
  • the average particle size can be measured using, for example, a laser diffraction type particle size distribution measuring device manufactured by Shimadzu Corporation, a particle size measuring device such as the trade name “SALD-2200”.
  • the pigment of the present invention may be used alone or in combination of two or more.
  • the method for producing a pigment is not particularly limited as long as it can be produced so as to include a multilayer structure including a polarizing layer and a birefringent layer in this order, and a known method for producing a laminate such as an optical film can be used.
  • Examples of the method for producing a pigment include the following processes: A) Apply a UV curable adhesive on one surface of the cellophane film as a birefringent layer; B) A polarizing film as a polarizing layer is laminated on the applied UV-curable adhesive; C) Irradiate UV from the polarizing layer side or the birefringent layer side to cure the UV curable adhesive to form an adhesive layer; D) The laminate obtained from the above c) is cut or crushed to a desired size. By the steps a) to d), the pigment shown in FIG. 4 is obtained.
  • step (c) Apply a UV curable adhesive on the other surface (the surface without the adhesive layer) of the cellophane film;
  • step (c) Apply a UV curable adhesive on the other surface (the surface without the adhesive layer) of the cellophane film;
  • step (c) Apply a UV curable adhesive on the other surface (the surface without the adhesive layer) of the cellophane film;
  • step (c) Apply a UV curable adhesive on the other surface (the surface without the adhesive layer) of the cellophane film;
  • a polarizing film as a second polarizing layer is laminated on the UV curable adhesive applied in step e) above;
  • UV is irradiated from the second polarizing layer side or the first polarizing layer side to cure the UV curable adhesive to form an adhesive layer.
  • the method for pulverizing the pigment is not particularly limited, and for example, the pulverization method described in International Publication No. 2018/034261 can be used.
  • Examples of the target to which the pigment is blended include compositions (paint compositions, cosmetic compositions, decorative compositions, etc.), fibers, etc., which will be described later.
  • composition is a composition containing any of the above pigments.
  • the pigment contained in the composition may be only one kind or a combination of two or more kinds.
  • the amount of the pigment in the composition is, for example, 1 to 99 parts by mass, preferably 20 to 80 parts by mass, and more preferably 30 to 70 parts by mass with respect to 100 parts by mass of the solid content of the composition. .. In one embodiment, the amount of the pigment of the present invention is 30 parts by mass or more, 40 parts by mass or more, 50 parts by mass or more, 60 parts by mass or more, or 70 parts by mass or more with respect to 100 parts by mass of the solid content of the composition. is there. In another embodiment, the amount of the pigment of the present invention is 70 parts by mass or less, 60 parts by mass or less, 50 parts by mass or less, 40 parts by mass or less, or 30 parts by mass or less with respect to 100 parts by mass of the solid content of the composition. Is.
  • composition according to the present invention may contain other components in addition to the pigment, for example, depending on the use of the composition, coatability, and the like.
  • the other components may be used alone or in combination of two or more.
  • Other components include, for example, resins, solvents, dispersants, defoamers, sagging inhibitors, viscosity regulators, sedimentation inhibitors, cross-linking accelerators, hardeners, leveling agents, surface conditioners as coating film forming elements.
  • composition may contain known pigments (for example, extender pigments and coloring pigments) other than the pigments according to the present invention.
  • the resin examples include acrylic resin, polyester resin, alkyd resin, fluororesin, epoxy resin, polyurethane resin, and polyether resin.
  • a polymer compound containing an inorganic component or composed of an inorganic component such as a silicone resin or an alkoxysilane condensate, can be used.
  • a resin as a known coating film forming element used in a coating composition or the like may be used.
  • the amount of the resin in the composition is, for example, 1 to 99 parts by mass, preferably 20 to 80 parts by mass, and more preferably 30 to 70 parts by mass with respect to 100 parts by mass of the solid content of the composition. .. In one embodiment, the amount of resin is 30 parts by mass or more, 40 parts by mass or more, 50 parts by mass or more, 60 parts by mass or more, or 70 parts by mass or more with respect to 100 parts by mass of the solid content of the composition. In another embodiment, the amount of resin is 70 parts by mass or less, 60 parts by mass or less, 50 parts by mass or less, 40 parts by mass or less, or 30 parts by mass or less with respect to 100 parts by mass of the solid content of the composition.
  • a solvent such as a conventionally known paint composition and cosmetic composition can be appropriately selected and used.
  • alcohols such as methanol, ethanol, 2-propanol and 1-butanol; ethyl acetate, butyl acetate, isobutyl acetate, ethyl propionate, ethylene glycol monomethyl ether acetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate and the like.
  • Ethers such as diethyl ether, propylene glycol monomethyl ether, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, dioxane, tetrahydrofuran (THF); ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,3- Glycos such as butylene glycol, pentamethylene glycol, 1,3-octylene glycol; formamide, N-methylformamide, dimethylformamide (DMF), dimethylacetamide, dimethylsulfoxide (DMSO), N-methylpyrrolidone (NMP) Amidos such as: acetone, methyl ethyl ketone (MEK), methylpropyl ketone, methyl isobutyl ketone, acetylacetone, cyclohexanone and other ketones; toluene, xylene, mesityylene, dodecylbenzene and other ketones;
  • the amount of solvent in the composition may be appropriately adjusted in consideration of coatability, viscosity and the like.
  • the method for preparing the composition is not particularly limited, and the pigment according to the present invention and other arbitrary components such as a resin and a solvent can be mixed and produced using a known mixing device or the like. it can.
  • the pigment according to the present invention can be added to a known coating composition (base coating) and mixed to prepare a coating composition.
  • composition is not particularly limited, and it can be suitably used for applications requiring high designability or cosmeticity.
  • Applications of the composition include, for example, paint compositions, cosmetic compositions, decorative compositions and the like.
  • the composition is a coating composition.
  • the composition is a cosmetic composition or a decorative composition.
  • the compositions according to the invention may be applied or rubbed on humans; and non-human animals.
  • the article according to the present invention is an article having a coating film using any of the above compositions.
  • Articles having a coating film using the composition are not particularly limited, and vehicles such as automobiles, trains, buses, and taxis; vehicle tires; ships; aircraft such as airplanes and helicopters; , Office buildings, public facilities, commercial facilities, research facilities, military facilities, walls of buildings such as tunnels, floors, ceilings, roofs, pillars, signs, electronic signage (digital signage), doors, gates; bridges Vending machines; Road signs; Signals; Street lights; Digital signage such as LED, liquid crystal, and light bulbs; Work machines, construction machines; Stone monuments; Tombstones; Clothes; Footwear such as shoes; Materials: Lenses such as glasses; Mirrors and the like.
  • the film thickness of the coating film is not particularly limited and may be adjusted as appropriate. For example, it is 0.6 ⁇ m to 6 mm, preferably 20 ⁇ m to 2 mm, and more preferably 50 ⁇ m to 1 mm. In one embodiment, the film thickness of the coating film is 50 ⁇ m or more, 100 ⁇ m or more, 200 ⁇ m or more, 300 ⁇ m or more, 400 ⁇ m or more, 500 ⁇ m or more, 600 ⁇ m or more, 700 ⁇ m or more, 800 ⁇ m or more, 900 ⁇ m or more or 1 mm or more.
  • the film thickness of the coating film is 1 mm or less, 900 ⁇ m or less, 800 ⁇ m or less, 700 ⁇ m or less, 600 ⁇ m or less, 500 ⁇ m or less, 400 ⁇ m or less, 300 ⁇ m or less, 200 ⁇ m or less, 100 ⁇ m or less or 50 ⁇ m or less.
  • the method for forming the coating film is not particularly limited, and a conventionally known coating method can be used.
  • coating can be performed using an applicator, a bar coater, a brush, a spray, a roller, a roll coater, a curtain coater, or the like.
  • it can be painted by immersing it in a paint bath.
  • the drying temperature after applying the coating composition may be appropriately adjusted according to the solvent and the like.
  • the temperature can be 30 to 200 ° C, preferably 40 to 160 ° C.
  • an energy ray such as a two-component curing reaction or ultraviolet rays may be used. If it is not necessary to dry in a short time, it may be dried at room temperature, for example.
  • Polarizing film Product name "SKN-18243T” (absorbent polarizing film) manufactured by Polatechno Co., Ltd., thickness 215 ⁇ m
  • Cellophane film Product name "monochromatic cellophane (transparent)” manufactured by Toyo Co., Ltd., thickness approx.
  • Example 1 A UV curable adhesive was applied onto a cellophane film (dimensions 10 cm ⁇ 10 cm) as a birefringent layer. Next, a polarizing film as a polarizing layer was placed on the UV curable adhesive. UV was irradiated from the polarizing film side to cure the UV curable adhesive to form an adhesive layer.
  • the obtained laminate having a three-layer structure of a polarizing layer, an adhesive layer and a birefringent layer was mechanically pulverized using a rotary crusher to obtain a pigment.
  • the obtained pigment had dimensions of 2 mm ⁇ 2 mm and a thickness of 350 ⁇ m.
  • composition 100 parts by mass of the obtained pigment was added to 100 parts by mass of the solid content of the aqueous acrylic emulsion, and the mixture was stirred and mixed to obtain a composition (paint composition).
  • the obtained composition was painted on a glass plate. Then, the composition was dried at room temperature for 1 hour to form a coating film (thickness 900 ⁇ m), and a glass plate having the coating film was obtained. When the obtained coating film was observed under indoor illumination light at different angles, it was confirmed that the color of the coating film changed and the coating film exhibited high design.
  • Example 2 The process up to the production of the three-layer structure laminate of Example 1 was carried out in the same manner. Next, a UV curable adhesive was applied on the surface of the birefringent layer opposite to the adhesive layer. Next, a polarizing film as a second polarizing layer was placed on the UV curable adhesive. At this time, the angle between the first polarizing layer and the second polarizing layer was set to 90 °. UV was irradiated from the second polarizing layer side to cure the UV curable adhesive to form an adhesive layer.
  • the obtained laminate having a five-layer structure of a first polarizing layer, an adhesive layer, a birefringent layer, an adhesive layer and a second polarizing layer was mechanically pulverized using a rotary crusher to obtain a pigment.
  • the obtained pigment had dimensions of 2 mm ⁇ 2 mm and a thickness of 700 ⁇ m.
  • Example 2 a composition (paint composition) was prepared in the same manner as in Example 1. Further, as in Example 1, a glass plate having a coating film was obtained. When the obtained coating film was observed under indoor illumination light at different angles, it was confirmed that the color of the coating film changed and the coating film exhibited high design.
  • Comparative example 1 Polarized light in the same manner as in Example 1 except that a non-birefringent material (a material having no birefringence), a non-axially stretched polypropylene (CPP) film, was used instead of the birefringent layer in Example 1.
  • a laminate having a three-layer structure consisting of a layer, an adhesive layer and a CPP film layer was obtained.
  • the laminate was mechanically pulverized using a rotary crusher to obtain a pigment.
  • the obtained pigment had dimensions of 2 mm ⁇ 2 mm and a thickness of 380 ⁇ m.
  • Example 2 a comparative composition (comparative coating composition) was prepared in the same manner as in Example 1. Further, as in Example 1, a glass plate having a coating film was obtained. The obtained coating film was observed at different angles under indoor illumination light, but the color of the coating film did not change.
  • the present invention it is possible to provide a pigment that is cheaper and can exhibit high designability or cosmeticity. According to the present invention, it is possible to provide a composition containing such a pigment. According to the present invention, it is possible to provide an article having a high degree of design.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Cosmetics (AREA)
  • Laminated Bodies (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

L'invention fournit un pigment meilleur marché, et permettant de développer des propriétés élevées d'un point de vue de l'esthétique et de la conception. L'invention fournit également une composition contenant ce pigment. En outre, l'invention fournit un article doté de propriétés élevées d'un point de vue de la conception. Plus précisément, l'invention concerne un pigment qui contient une structure stratifiée, laquelle structure stratifiée contient dans l'ordre une couche de polarisation et une couche de biréfringence. L'invention concerne également une composition contenant ce pigment. En outre, l'invention concerne un article qui possède un film de revêtement mettant en œuvre cette composition.
PCT/JP2020/046428 2019-12-26 2020-12-11 Pigment, composition, et article WO2021131821A1 (fr)

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JP2019-237401 2019-12-26
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09507089A (ja) * 1993-12-23 1997-07-15 ビーエーエスエフ、コーポレーション 光学的に変化し得る二色顔料および干渉マイカ顔料を含有する塗料組成物
JP2001315243A (ja) * 2000-03-02 2001-11-13 Merck Patent Gmbh 視野角に依存する反射特性を有する多層反射フィルムまたは顔料
US20100112314A1 (en) * 2008-11-06 2010-05-06 Yingqiu Jiang Invisible Pigments and Ink
WO2016006664A1 (fr) * 2014-07-10 2016-01-14 日本ペイントホールディングス株式会社 Pigment et composition de revêtement réfléchissant l'infrarouge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09507089A (ja) * 1993-12-23 1997-07-15 ビーエーエスエフ、コーポレーション 光学的に変化し得る二色顔料および干渉マイカ顔料を含有する塗料組成物
JP2001315243A (ja) * 2000-03-02 2001-11-13 Merck Patent Gmbh 視野角に依存する反射特性を有する多層反射フィルムまたは顔料
US20100112314A1 (en) * 2008-11-06 2010-05-06 Yingqiu Jiang Invisible Pigments and Ink
WO2016006664A1 (fr) * 2014-07-10 2016-01-14 日本ペイントホールディングス株式会社 Pigment et composition de revêtement réfléchissant l'infrarouge

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