WO2020196707A1 - 化粧材 - Google Patents

化粧材 Download PDF

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Publication number
WO2020196707A1
WO2020196707A1 PCT/JP2020/013536 JP2020013536W WO2020196707A1 WO 2020196707 A1 WO2020196707 A1 WO 2020196707A1 JP 2020013536 W JP2020013536 W JP 2020013536W WO 2020196707 A1 WO2020196707 A1 WO 2020196707A1
Authority
WO
WIPO (PCT)
Prior art keywords
convex
decorative material
resin
base material
forming layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/013536
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English (en)
French (fr)
Japanese (ja)
Inventor
真次 岩田
岡本　優
浩永 太田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP2021509564A priority Critical patent/JPWO2020196707A1/ja
Publication of WO2020196707A1 publication Critical patent/WO2020196707A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/24—Pressing or stamping ornamental designs on surfaces

Definitions

  • This disclosure relates to cosmetic materials.
  • the hairline is a polished eye formed for the purpose of aesthetics on the surface of the metal, and is a streak-like uneven pattern formed by polishing.
  • Such a hairline (concave and convex pattern) is composed of an aggregate in which a plurality of concave portions having a thin line shape in a plan view are arranged in a positional relationship parallel to or substantially parallel to each other in the extending directions thereof. Therefore, the decorative material having a hairline-like uneven pattern is a decorative material formed of a material other than metal and expressing the uneven pattern imitating the hairline uneven pattern.
  • One aspect of the present disclosure is a decorative material having an uneven pattern formed on its surface, which comprises a base material and a pattern forming layer having an uneven pattern provided on one surface of the base material to form a pattern.
  • the layer comprises a group of convex streaks in which a plurality of convex streaks having a length at least one end not reaching the edge of the decorative material are arranged, the convex streaks extend in one direction, and the plurality of convex streaks are said to be concerned.
  • a decorative material that is arranged in a direction different from one direction.
  • a convex line having a length at which at least one end does not reach the edge of the decorative material is a single convex line such that both ends of the one convex line reach the end (edge) of the decorative material. Rather, it means that at least one end of the convex line is a convex line that does not reach the end (edge) of the decorative material.
  • a decorative material having an uneven pattern formed on its surface which comprises a base material and a pattern forming layer having an uneven pattern provided on one surface of the base material, and the pattern forming layer is a decorative material at least at one end.
  • the convex streaks are decorative materials whose height gradually decreases at at least one of both ends in the extending direction.
  • the adjacent convex lines may be configured to have a portion in which the ends whose heights are gradually lowered face each other.
  • the height of the tip at the end where the height of the convex streaks gradually decreases can be configured to be 0.
  • the convex line may be configured so that the width gradually decreases at at least one of both ends in the extending direction.
  • the surface of the pattern forming layer may be configured to have a metallic luster color tone.
  • the geometrical characteristics such as the arrangement and shape of the convex streaks are not monotonous in the plane, and the decorative material has a different appearance than before. be able to.
  • FIG. 1 is an enlarged plan view showing a part of the surface of the decorative material 10.
  • FIG. 2 is an enlarged view of a part of FIG.
  • FIG. 3A is a perspective view showing a part of the decorative material 10 schematically represented for explaining the form of the pattern forming layer 12, and
  • FIG. 3B is a cross-sectional view thereof.
  • FIG. 4A is a diagram for explaining the decorative material 10'
  • FIG. 4B is a diagram for explaining the decorative material 10'.
  • FIG. 5 is a diagram showing a part of the shading image data (concavo-convex pattern image data).
  • FIG. 6 is a diagram illustrating a scene in which an uneven pattern is formed on a mold by a laser.
  • FIG. 1 is an enlarged view (plan view) of a part of the decorative material 10 according to one form and viewed from the pattern forming layer 12 side.
  • arrows (x, y, z) indicating directions, that is, coordinate systems, are also shown in FIGS. 1 and the following figures for convenience.
  • the xy direction is the in-plane direction of the decorative material 10
  • the z direction is the thickness direction. Therefore, FIG. 1 is a view (planar view) of the decorative material 10 on the pattern forming layer 12 side, particularly from the z direction.
  • the decorative material 10 of the present embodiment is formed to have an uneven pattern in which the plan view is hairline-like as a whole.
  • FIG. 2 shows an enlarged view of the portion shown by A in FIG.
  • FIG. 3A shows a perspective view schematically showing an enlarged part of the decorative material 10 in order to explain the configuration of the decorative material 10 in an easy-to-understand manner.
  • FIG. 3 (b) shows one cross-sectional view when FIG. 3 (a) is cut in the zx plane.
  • the decorative material 10 is configured to have a base material 11 and a pattern forming layer 12 provided on one surface of the base material 11.
  • the base material 11 is a sheet-like member having a function of holding the pattern forming layer 12 and imparting strength to the decorative material 10.
  • the form of the base material 11 may be a film, a sheet, or a plate. Generally, they are called films, sheets, and plates in order from the one with relatively thin thickness, but in this embodiment, the difference depending on the thickness form of these base materials is not an essential matter but an important matter. Absent. Therefore, the essence of the present invention and the interpretation of the claims remain unchanged even if any of the terms film, sheet, and plate is appropriately read as other terms in the present specification.
  • the material of the base material 11 is not particularly limited as long as it has the same function as the conventionally known decorative material.
  • the material of the base material is usually polyethylene, polypropylene, olefin-based thermoplastic elastomer, polyolefin-based resin such as ionomer, acrylic resin such as polymethylmethacrylate and polybutylmethacrylate, thermoplasticity such as polyethylene terephthalate and polybutylene terephthalate.
  • Thermoplastic resin such as polyester resin, thermoplastic urethane resin, vinyl chloride resin, ABS resin (acrylonitrile-butadiene-styrene copolymer), styrene resin, melamine resin, unsaturated polyester resin, two-component curable urethane resin, etc.
  • a curable resin, an ionizing radiation curable resin that is cured by ionizing radiation (ultraviolet rays, electron beams, etc.) with a monomer such as a radical polymerization type acrylate type or a cationic polymerization type epoxy type, or a prepolymer is used.
  • the material of the base material is resin, it may be colored with a known colorant.
  • paper, non-woven fabric, metal, wood, etc. can also be used in the form of sheets, boards, three-dimensional objects, etc. by appropriately laminating them with the above resin materials.
  • the thickness of the base material is not particularly limited, but in the case of a sheet-shaped base material or a film-shaped base material, for example, the thickness is about 20 ⁇ m or more and 1000 ⁇ m or less, and in the case of a plate-shaped base material, for example, 1 mm. Those having a diameter of 20 mm or less are used.
  • the pattern forming layer 12 is provided on one surface of the base material 11 (in FIG. 3, the upper side in the drawing, that is, the surface on the + side in the z-axis direction), and is a layer that imparts an uneven pattern to the decorative material.
  • the decorative material 10 is provided with a hairline-like uneven pattern in a plan view.
  • the base material 11 and the cambium 12 are formed of a single common layer, and the vicinity of one surface of the base material 11 is provided with convex streaks 13. As a result, it functions as a pattern forming layer 12.
  • the base material 11 and the pattern forming layer 12 may be configured as a laminate of separate layers made of the same material or different materials.
  • the pattern forming layer 12 has the following configurations.
  • the pattern forming layer 12 is provided with a plurality of convex lines 13.
  • the convex line 13 has the following configuration.
  • the convex streaks 13 are formed so as to extend in one direction (x direction in this embodiment). Therefore, the convex line 13 is a convex line having a length in the x direction, a width in the y direction, and a height in the z direction.
  • the length of the convex line 13 is set so that at least one end does not reach the edge of the decorative material. That is, not one convex line such that both ends of the one convex line reach the end (edge) of the decorative material, but at least one end of the convex line reaches the end (edge) of the decorative material. It means that it is a convex streak without. Therefore, both ends of the convex streaks may be set so as not to reach the edges of the decorative material.
  • the convex line 13 may be formed so that the height gradually decreases at at least one of the ends in the length direction.
  • the mode in which the height is gradually lowered is not particularly limited, and may be a curved and curved form as in the present embodiment, or may be configured to draw a linear tapered shape.
  • the shape of the curve in addition to the curve that monotonically decreases toward the lowering direction (+ x direction or ⁇ x direction) as shown in FIG. 3 (b), the curve decreases while vibrating like a decaying sine curve. It can also be a curved line.
  • the height of the tip of the convex line 13 may be 0, that is, the height may be the same as the surface of the base material 11, or the height may be other than 0 (for example, 30 ⁇ m). You can also do it. Further, at least one of the ends of the convex line 13 in the length direction may be configured so that its width gradually decreases. In this way, the convex line 13 can have a shape that is tapered at its end.
  • the cross-sectional shape in the direction orthogonal to the longitudinal direction of the convex line 13 is not particularly limited, and may take a shape such as a semicircle, a semi-elliptical shape, a triangle, a quadrangle, a pentagon, a hexagon, or a polygon. Among them, when the shape has corners such as a triangle or a quadrangle, it can be recognized as a more delicate design.
  • the specific size of the height, width, and length of the convex line 13 is not particularly limited, but it is visible and fine from the viewpoint of forming a hairline-like uneven pattern of the decorative material. can do.
  • the convex line may be in the following form.
  • the width of the convex streaks (the size in the direction orthogonal to the direction in which the convex streaks extend, the size in the y direction) may be 10 ⁇ m or more and 90 ⁇ m or less in the thickest portion.
  • the height of the convex streaks (magnitude in the z direction) may be 5 ⁇ m or more and 100 ⁇ m or less at the highest portion of the convex streaks.
  • the length of the convex streaks (the size in the direction in which the convex streaks extend, the length in the x direction) may be 0.5 mm or more and 150 mm or less.
  • the convex wire strip 13 is configured as described above for the end portion, the convex wire strip 13 does not need to have a constant shape in the extending direction except for the end portion, and the height may change or the width may change in the middle. May change.
  • a group of convex lines is formed by arranging a plurality of the convex lines 13 as described above.
  • a group of convex lines is arranged at least in a part of the decorative material 10. More specifically, the plurality of convex lines 13 included in the convex line group extend in one direction (x direction in this embodiment), and extend in a direction different from the extending direction (in this embodiment, the extending direction). Is arranged in the orthogonal direction, that is, in the y direction). Therefore, since the plurality of convex lines 13 extend in the same direction, they extend in the same direction, but they do not necessarily have to be exactly parallel.
  • the gap between the adjacent convex lines 13 is not particularly limited, but is preferably fine from the viewpoint of forming a hairline-like uneven pattern of the decorative material. From this point of view, in addition to the arrangement in which there is no gap between adjacent convex lines (the gap is 0), if there is a gap, the width of the two adjacent convex lines forming the gap is It is preferable that the gap is smaller than the width of the larger convex streak.
  • the ends of the adjacent convex line 13s are not aligned in the x direction, and there is a portion where the vicinity of the ends are arranged so as to face each other as shown in FIG. 3A at least in a part. Is preferable.
  • the line connecting the ends of a plurality of adjacent convex lines 13 is zigzag in a plan view.
  • the envelopes at the plurality of ends can be drawn, the envelopes are arranged so as to form a vibration curve like a sine curve, and the ends of the adjacent convex strips 13 are arranged in FIG. 3 (b).
  • the convex line 13 is overlapped by the distance ⁇ x in the extending direction (x direction in the figure).
  • At least one of the height, the thickness, the length, and the cross-sectional shape of the adjacent convex strips 13 is different.
  • a decorative material for expressing a hairline is different from the conventional one, particularly, a hairline-like appearance different from the conventional one.
  • FIG. 4 (a) and 4 (b) show a modified example of the decorative material 10'and the decorative material 10'.
  • a protective layer against the decorative material 10 is shown. 15 are laminated. This protects the decorative material from contamination and scratches.
  • the protective layer 15 is provided along the unevenness of the convex line 13, and in the decorative material 10 "of FIG. 4 (b), the protective layer 15 covers the entire pattern forming layer 12. This is an example of covering comprehensively and covering one surface (upper surface in the figure) so as to be a flat surface.
  • Such a protective layer can be made of transparent resin, transparent glass, or the like.
  • a transparent resin for example, a layer made of a thermoplastic resin or a cured resin can be mentioned. If the base material 11 and the pattern forming layer 12 alone can ensure sufficient surface durability such as stain resistance and scratch resistance in the intended application, the protective layer can be omitted.
  • thermoplastic resin examples include acrylic resins such as polymethyl (meth) acrylate and polyethyl (meth) acrylate, polyolefin resins such as polypropylene and polyethylene, fluororesins such as polyfluorovinyl and polyfluorinated vinylidene, and polyethylene terephthalate (polyfluorinated resin).
  • PET polybutylene terephthalate
  • PEN polyethylene naphthalate
  • polycarbonate resin vinyl chloride resin
  • ABS resin acrylonitrile-butadiene-styrene resin
  • ABS resin acrylonitrile-styrene-acrylic acid ester resin
  • (meth) acrylic means acrylic or methacrylic.
  • the layer made of a curable resin is a layer obtained by curing the curable resin composition, and the curable resin composition is a composition containing a curable resin.
  • the curable resin composition include a thermosetting resin composition containing a thermosetting resin, an ionizing radiation curable resin composition containing an ionizing radiation curable resin, and the like.
  • the thermosetting resin include unsaturated polyester resin, polyurethane resin (including two-component curable polyurethane), epoxy resin, aminoalkyd resin, phenol resin, urea resin, diallyl phthalate resin, melamine resin, and guanamine resin. Examples thereof include melamine-urea cocondensate resin, silicon resin, and polysiloxane resin.
  • the thermosetting resin composition contains, if necessary, components involved in the curing reaction of the thermosetting resin, for example, a catalyst, a curing agent (including a cross-linking agent, a polymerization initiator, a polymerization accelerator, etc.) and the like. You may.
  • the ionizing radiation curable resin is a resin that undergoes a cross-linking polymerization reaction by irradiation with ionizing radiation and changes into a three-dimensional polymer structure. Ionizing radiation has energy quanta that can polymerize or cross-link molecules among electromagnetic waves and charged particle beams.
  • UV and EB electromagnetic waves such as X-rays and ⁇ -rays, ⁇
  • UV and EB charged particle beams
  • EB electron beams
  • the electron beam curable resin can be solvent-free, does not require a photopolymerization initiator, and has stable curing characteristics.
  • the ionizing radiation curable resin is, for example, one kind such as a monomer, an oligomer, or a prepolymer having a polymerizable unsaturated bond such as a (meth) acryloyl group, an epoxy group, or the like in the molecule, which can be crosslinked by irradiation with ionizing radiation.
  • a composition containing the above can be used.
  • the thickness of the protective layer 15 is not particularly limited, but can be 0.1 ⁇ m or more and 20 ⁇ m or less. If it is thin, it has high durability due to bending, etc., but it is weak in scratch resistance, and if it is thick, it is resistant to scratches and scratches, but it is weak in deformation such as bending, and cracks occur. Therefore, a good balance is achieved by setting the thickness within the above range. It can be a protective layer. Therefore, it may be 1 ⁇ m or more and 10 ⁇ m or less.
  • each of the above decorative materials has a hairline tone
  • at least the surface of the pattern forming layer 12 may have a color tone such as metallic luster.
  • the specific embodiment for that purpose is not particularly limited, but it may be mentioned that the material itself constituting the base material 11 and the pattern forming layer 12 has a metallic luster.
  • the manufacturing method described below includes a step of producing a shade image, a step of producing a block copy image, a step of producing a plate, and a step of forming a pattern forming layer.
  • an uneven pattern in a plan view to be expressed on the pattern forming layer 12 is created as a shading image consisting of large and small optical densities.
  • the graphic design drawing software "Illustrator” manufactured by Adobe Systems Incorporated was used to create shade image data having a resolution of 2540 dpi in 8 bit image shade gradation (256 gradations) in TIFF format.
  • the obtained original image is converted into a convex stripe pattern as a binary image corresponding to the density gradation image of the pattern by a conversion program from density to unevenness, that is, the plate depth of the embossed plate.
  • the block copy depth is generated and arranged on the two-dimensional virtual plane XY plane, and the block copy image is obtained as digital data.
  • the minimum value of the optical density (for example, 0) corresponds to the minimum value of the unevenness data (for example, 0 ⁇ m)
  • the maximum value of the optical density (for example, 255) is set to the maximum value of the unevenness data (for example, 250 ⁇ m).
  • the shading image data consisting of the distribution of the optical density P (X, Y) at each coordinate (X, Y) on the two-dimensional plane is embossed consisting of the distribution of the plate depth D (X, Y) at the same coordinates. Convert to plate depth data H (X, Y).
  • a plan view image of the pattern forming layer as shown in FIG. 5 is generated as a binary image according to the conditions for generating convex lines.
  • the shading of the image represents the plate depth of the embossed plate (the optical density is associated with the plate depth).
  • the line segment portion of the uneven shape generated in this manner corresponds to a convex line in the decorative material. In this way, the block copy image is obtained.
  • an embossed plate (molding mold for decorative material) having a planar view-shaped uneven pattern as shown in FIG. 1 is produced based on the block copy image.
  • the manufacturing process of the uneven pattern includes the following steps (1) to (4).
  • a metal roll 20 for embossing plate engraving as shown in FIG. 6 was prepared.
  • the metal roll 20 is formed by plating a copper layer on the surface of a hollow iron cylinder having rotary drive shafts (shafts) 21 at both ends in the axial direction.
  • the surface of the metal roll 20 was polished with a grindstone to roughen it, and a treatment was performed to prevent a decrease in engraving efficiency due to specular reflection of laser light for engraving.
  • the metal roll 20 is driven by an electric motor via the rotation drive shaft 21, and rotates around the rotation drive shaft 21 as a central axis.
  • the surface of the metal roll 20 is scanned by a fiber laser beam P having an oscillation wavelength of 1024 nm, a laser spot diameter of 10 ⁇ m, and an output of 360 W emitted from the laser head 22.
  • ON-OFF switching (irradiation or non-irradiation) of the laser beam is performed according to the density value of the uneven pattern image data created in the step (1), and the irradiation position is subjected to one laser beam irradiation.
  • the evaporation of the metal forms a recess with a depth of 10 ⁇ m.
  • scanning of the metal roll surface with the laser beam is repeated, for example, 10 times.
  • the engraving liquid T was sprayed from the engraving liquid discharge port 23 onto the laser beam irradiation region on the surface of the metal roll 20.
  • Laser beam irradiation was performed in this state.
  • the laser beam is irradiated (ON) only for the first 5 times out of a total of 25 scans, and the remaining 20 times.
  • the laser beam is controlled to be non-irradiated (OFF) to obtain a desired depth.
  • the scanning of the laser beam was completed, and a desired uneven shape was formed on the surface of the metal roll 20.
  • Electropolishing Step After cleaning the engraving liquid, electropolishing was performed to remove metal residues adhering to the surface of the metal roll 20.
  • a chromium layer having a thickness of 10 ⁇ m was formed on the surface of the metal roll by plating.
  • the decorative material 10 is obtained by embossing the base material 11 using the produced plate (embossed plate).
  • the embossing may be performed by an appropriate known method, and is not particularly limited.
  • a typical method of embossing is as follows, for example.
  • a resin sheet made of a thermoplastic resin such as a polyolefin resin is used as the base material.
  • This base material is heated and softened, and the embossed plate is pressed against the surface thereof to form an uneven pattern on the surface of the embossed plate on the surface of the resin sheet.
  • the resin sheet is cooled and solidified to fix the uneven pattern on the resin sheet.
  • the resin sheet on which the uneven pattern is formed is released from the embossed plate.
  • the various embossing methods will be further described, for example, the following methods (A) to (E).
  • A The resin sheet as the base material is heated and softened, and the embossing plate is pressed to emboss.
  • B Embossing and laminating by heat-sealing the resin sheet (base material) to be the surface sheet and the resin sheet (second base material) to be the base sheet by the heat pressure when the embossing plate is pressed. Embossing is performed by the doubling embossing method, which is performed at the same time.
  • C A resin sheet (base material) to be used as a surface sheet is melt-extruded from a T-die and brought into contact with a cylinder-shaped embossed plate that also serves as a cooling roller to be embossed at the same time as the surface sheet is formed.
  • the resin sheet (second base material) to be the base sheet inserted into the back surface side of the front surface sheet is further heat-sealed to perform doubling embossing at the same time as the film formation.
  • D As disclosed in JP-A-57-87318, JP-A-7-32476, etc., an uncured liquid of an ionizing radiation curable resin is applied to the surface of a cylinder-shaped embossed plate. Further, a base sheet made of a resin sheet or the like is laminated on the base sheet and irradiated with ionizing radiation to cure the uncured liquid material to obtain a cured product.
  • thermoplastic resin is typically used as the material of the base material used in the embossing methods (A) to (C), and the material of the base material used in the embossing method of (D) is typically used.
  • An ionizing radiation curable resin is used, and a thermosetting resin is typically used as the material of the base material used in the embossing method (E).
  • the decorative material 10 can be obtained as described above.
  • the uses of the decorative materials described above are not particularly limited, but for example, interior materials for buildings such as walls, floors, and ceilings, outer walls, roofs, gates, walls, fences, and other exterior materials for buildings, doors, and windows. Fittings such as frames and door frames, surface materials for building members such as peripheral edges, skirting boards, and handrails, surface materials for home appliances such as TV receivers and refrigerators, and housings for office equipment such as copying machines, furniture such as porcelain Surface materials, boxes, surface materials for containers such as resin bottles, interior materials or exterior materials for vehicles, interior materials or exterior materials for ships, etc.

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PCT/JP2020/013536 2019-03-26 2020-03-26 化粧材 Ceased WO2020196707A1 (ja)

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JP2019-057880 2019-03-26

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787318A (en) * 1980-11-19 1982-05-31 Toyo Ink Mfg Co Ltd Forming method of uneven pattern
JPH04308799A (ja) * 1991-04-08 1992-10-30 Dainippon Printing Co Ltd 木目調化粧シート及び木目調化粧材
JPH0732476A (ja) * 1993-07-23 1995-02-03 Dainippon Printing Co Ltd 凹凸フィルムの製造装置
JP2001009907A (ja) * 1999-06-29 2001-01-16 Dainippon Printing Co Ltd 万線状凹凸模様を有する化粧材、及びその製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4390869B2 (ja) * 1998-03-19 2009-12-24 大日本印刷株式会社 万線状凹凸模様を有する化粧材
JP6765819B2 (ja) * 2016-02-08 2020-10-07 津田工業株式会社 樹脂成形用金型の製造方法、及び、樹脂成形方法
JP6922332B2 (ja) * 2017-03-29 2021-08-18 大日本印刷株式会社 化粧シート
JP7585674B2 (ja) * 2020-03-12 2024-11-19 大日本印刷株式会社 化粧材

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5787318A (en) * 1980-11-19 1982-05-31 Toyo Ink Mfg Co Ltd Forming method of uneven pattern
JPH04308799A (ja) * 1991-04-08 1992-10-30 Dainippon Printing Co Ltd 木目調化粧シート及び木目調化粧材
JPH0732476A (ja) * 1993-07-23 1995-02-03 Dainippon Printing Co Ltd 凹凸フィルムの製造装置
JP2001009907A (ja) * 1999-06-29 2001-01-16 Dainippon Printing Co Ltd 万線状凹凸模様を有する化粧材、及びその製造方法

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