Leather-like seat

Abstract

The present invention provides a black sheet-like molded product that offers excellent opacity, good light transmittance, low near-infrared absorption (high near-infrared transmittance), and achromatic or near-achromatic color. [Solution] The black sheet-like molded product is a coated and dried molded product of a black resin composition containing a pigment (excluding carbon black), a resin, and a liquid medium. The haze value of the first sheet formed by coating and drying the black resin composition, with a total light transmittance of 10.0%, is 55.0% or less, and satisfies the following conditions (1) to (4). (1) The total light transmittance is 0.7 to 6.0%. (2) In the CIE LAB (L*a*b*) color system, the a* value of the transparent color is -5 to 5, and the b* value is -5 to 5. (3) The L* value of the surface color in the CIE LAB (L*a*b*) color system is 15.0 or less. (4) The thickness is 10 to 40 μm.

Description

Technical Field

[0001] The present invention relates to Leather-like seat .

Background Art

[0002] As an instrument panel (instrument panel) of a vehicle interior material or a frame portion of a household appliance, it appears to be an ordinary instrument panel or frame in appearance, but a design is given in which a display appears (letters or images float up) when starting and energizing. For a fixed shape, it can be easily displayed by a method such as partially transmitting, while it is generally difficult to display characters, images, etc. whose shapes and colors are not fixed.

[0003] Carbon black is useful as a coloring material excellent in the blackness of the surface color and the reproducibility of black when light is transmitted in applications such as paint, security ink, and electronic materials (display-related members, infrared sensor-related members). However, since carbon black easily converts sunlight into heat, there is a problem that various members using carbon black as a coloring material easily generate heat and store heat. In addition, when carbon black is used as a coloring material, it easily absorbs ultraviolet rays and (near) infrared rays, so problems such as difficulty in curing ultraviolet-curable materials and difficulty in reacting a remote control using an infrared laser easily occur.

[0004] On the other hand, various organic pigments such as perylene black and trichromatic black have been studied as black coloring materials that are difficult to absorb light with wavelengths other than visible light. However, a black sheet colored with these organic pigments appears greenish black or purplish black when light is transmitted, and it has been difficult to achieve a neutral color tone (achromatic color) like that colored with carbon black.

[0005] In addition, as a related prior art, a leather-like sheet having a colored resin layer containing carbon black and urethane resin, which is arranged to cover a light-emitting member, has been proposed (Patent Document 1). Furthermore, a coating for display equipment containing organic pigments, black pigments such as carbon black, and polyurethane has been proposed (Patent Document 2). [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Patent No. 6955962 [Patent Document 2] Patent No. 5921547 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, the conventional colored resin layers and coatings proposed in Patent Documents 1 and 2 contain carbon black as a colorant, which tends to inhibit the transmission of light other than visible light, such as ultraviolet and near-infrared rays. Furthermore, none of these colored resin layers offer good opacity, resulting in problems such as the substrate or other components placed adjacent to them being easily visible through the layer.

[0008] This invention has been made in view of the problems of the prior art, and its objective is to provide a black sheet-like molded product that has excellent opacity, good light transmittance and low near-infrared absorption (high near-infrared transmittance), and is achromatic or close to achromatic in color, as well as a laminate using this black sheet-like molded product. [Means for solving the problem]

[0009] In other words, the present invention provides the following black sheet-like molded product. [1] A black sheet-like molded product which is a coated and dried molded product of a black resin composition containing a pigment (except carbon black), a resin, and a liquid medium, wherein the haze value of the first sheet formed by coating and drying the black resin composition, having a total light transmittance of 10.0%, is 55.0% or less, and satisfies the following (1) to (4). (1) The total light transmittance is 0.7 to 6.0%. (2) In the CIE LAB (L*a*b*) color system, the a* value of the transparent color is -5 to 5, and the b* value is -5 to 5. (3) The L* value of the surface color in the CIE LAB (L*a*b*) color system is 15.0 or less. (4) The thickness is 10 to 40 μm. [2] The black sheet-like molded article according to [1], wherein the resin contains a polyurethane resin, and the content of the polyurethane resin is 70% by mass or more based on the total of the pigment and the resin. [3] The black sheet-like molded article according to [1] or [2], wherein the pigment is a perylene-based black pigment, or a combination of an anthraquinone-based red pigment, a disazo-based yellow pigment, and a phthalocyanine-based blue pigment. [4] A black sheet-like molded article according to any one of [1] to [3], wherein the pigment content is 2 to 11% by mass, based on the total of the pigment and the resin. [5] A black sheet-like molded article according to any one of [1] to [4] above, wherein the near-infrared transmittance in the wavelength range of 700 to 1,400 nm is 50.0% or more. [6] A black sheet-like molded product according to any of [1] to [5] above, wherein the a* value of the surface color in the CIE LAB (L*a*b*) color system is -5 to 5 and the b* value is -5 to 5.

[0010] Furthermore, according to the present invention, the following laminate is provided. [7] A laminate comprising a base material and a black sheet-like molded product according to any of [1] to [6] disposed on the base material. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a black sheet-like molded product that has excellent opacity, good light transmittance, and low near-infrared absorption (high near-infrared transmittance), and is achromatic or closer to achromatic in color, as well as a laminate using this black sheet-like molded product. [Modes for carrying out the invention]

[0012] <Black sheet-like molded material> The embodiments of the present invention will be described below, but the present invention is not limited to the embodiments described below. One embodiment of the black sheet-like molded article of the present invention is suitable as an article such as a dark-colored translucent sheet used as an interior material for vehicles, and is a coated and dried molded article of a black resin composition. That is, the black sheet-like molded article of this embodiment is a sheet-like molded article that can be obtained by coating and drying this black resin composition. The black resin composition that is the constituent material is a resin composition containing a pigment (except carbon black), a resin, and a liquid medium. The haze value of the first sheet with a total light transmittance of 10.0% formed by coating and drying this black resin composition is 55.0% or less. Furthermore, the black sheet-like molded article of this embodiment satisfies the following (1) to (4). The details of the black sheet-like molded article of this embodiment will be described below. (1) The total light transmittance is 0.7 to 6.0%. (2) In the CIE LAB (L*a*b*) color system, the a* value of the transparent color is -5 to 5, and the b* value is -5 to 5. (3) The L* value of the surface color in the CIE LAB (L*a*b*) color system is 15.0 or less. (4) The thickness is 10 to 40 μm.

[0013] (Black resin composition) [Pigments] The black resin composition contains a pigment other than carbon black as a coloring material. As the pigment, it is preferable to use an organic pigment. As the organic pigment, in addition to black organic pigments, two or more kinds of colored organic pigments can be used in combination. That is, it is possible to express black with a neutral color tone using only black organic pigments, or it is also possible to express black with a neutral color tone by mixing two or more kinds of colored (for example, red, yellow, and blue) organic pigments.

[0014] Examples of the black organic pigment include perylene-based black pigments and aniline-based black pigments. Among them, it is preferable to use perylene-based black pigments. As the perylene-based black pigment, in addition to C.I. Pigment Black 32 and C.I. Pigment Black 31, commercially available products and the like can be used. Examples of commercially available perylene-based black pigments include "Spectrasense Black L0082", "Spectrasense Black L0086", and "Spectrasense Black K0088" (all manufactured by DIC Corporation) under the following trade names. Examples of the aniline-based black pigment include C.I. Pigment Black 1.

[0015] Among the colored organic pigments, examples of the red organic pigment include anthraquinone-based red pigments, naphthol-based red pigments, pyrazolone-based red pigments, and condensed azo-based red pigments. Among them, it is preferable to use anthraquinone-based red pigments. As the anthraquinone-based red pigment, in addition to C.I. Pigment Red 177, C.I. Pigment Red 168, and C.I. Pigment Red 83, commercially available products and the like can be used.

[0016] Among the colored organic pigments, examples of the yellow organic pigment include disazo-based yellow pigments, condensed azo-based yellow pigments, and monoazo-based yellow pigments. Among them, it is preferable to use disazo-based yellow pigments. As the disazo-based yellow pigment, in addition to C.I. Pigment Yellow 83, C.I. Pigment Yellow 81, and C.I. Pigment Yellow 17, commercially available products and the like can be used.

[0017] Among colored organic pigments, examples of blue organic pigments include phthalocyanine-based blue pigments and naphthol AS-based blue pigments. Among them, it is preferable to use phthalocyanine-based blue pigments. As phthalocyanine-based blue pigments, in addition to C.I. Pigment Blue 15, C.I. Pigment Blue 15:1, C.I. Pigment Blue 15:3, and C.I. Pigment Blue 75, commercially available products and the like can be used.

[0018] [Resin] The black resin composition contains a resin that serves as the base of a black sheet-shaped molded product used as a dark-colored light-transmitting sheet or the like. The type of resin is not particularly limited, and various resins such as thermoplastic resins can be used. The type of resin may be selected according to the use and the like of the black sheet-shaped molded product. Specific examples of the resin include polyurethane resin, vinyl chloride·vinyl acetate·vinyl alcohol copolymer, acrylic resin, polyolefin resin, and polyester resin. Among them, polyurethane resin and vinyl chloride·vinyl acetate·vinyl alcohol copolymer are preferable, and polyurethane resin is particularly preferable. By using polyurethane resin, for example, a black resin composition capable of producing a black sheet-shaped molded product such as a leather-like dark-colored light-transmitting sheet can be obtained.

[0019] In the black sheet-shaped molded product, the content of the polyurethane resin is preferably 70% by mass or more, more preferably 85 - 97% by mass, based on the total of the pigment and the resin. Similarly, in the black resin composition used as a constituent material of the black sheet-shaped molded product, the content of the polyurethane resin is preferably 70% by mass or more, more preferably 85 - 97% by mass, based on the total of the pigment and the resin (i.e., the solid content). By setting the content of the polyurethane resin based on the total of the pigment and the resin (solid content) within the above range, the physical properties peculiar to urethane resin can be exhibited.

[0020] In the black resin composition, the total content of pigment and resin (solids) is preferably 15 to 25% by mass, and more preferably 16 to 22% by mass. Similarly, in the black sheet-like molded product, the pigment content is preferably 2 to 11% by mass, and more preferably 3 to 9% by mass, based on the total of the pigment and resin. Likewise, in the black resin composition used as a constituent material for the black sheet-like molded product, the pigment content is preferably 2 to 11% by mass, and more preferably 3 to 9% by mass, based on the total of the pigment and resin (i.e., solids). By setting the pigment content within the above ranges, a black sheet-like molded product useful as a dark translucent sheet with superior opacity can be obtained.

[0021] [Liquid medium] The black resin composition contains a liquid medium for dispersing or dissolving solid components such as pigments. Water and organic solvents can be used as the liquid medium. Examples of organic solvents include: alcohol-based solvents such as methanol, ethanol, and isopropanol; glycol-based solvents such as ethylene glycol, propylene glycol, glycerin, diethylene glycol, and propylene glycol monomethyl ether; amide-based solvents such as dimethylformamide, dimethylacetamide, N-methylpyrrolidone, 3-methoxy-N,N-dimethylpropanamide, and 3-butoxy-N,N-dimethylpropanamide; hydrocarbon-based solvents such as toluene, xylene, hexane, and isoparaffin; ketone-based solvents such as methyl ethyl ketone, methyl isobutyl ketone, and cyclohexanone; ester-based solvents such as ethyl acetate, propyl acetate, butyl acetate, ethylene glycol dilauric acid, and trimethylolpropane triacetate; and esterified glycol-based solvents such as propylene glycol monomethyl ether acetate and 3-methoxy-3-methyl-1-butyl acetate.

[0022] [Sheet 1] The haze value of the first sheet, formed by coating and drying a black resin composition and having a total light transmittance of 10.0%, is 55.0% or less, preferably 10.0 to 50.0%, and more preferably 15.0 to 45.0%. Having the haze value of the first sheet within this range provides sufficient light transmittance to recognize icons and names when placed on, for example, a smartphone screen. Note that the smaller the pigment particle size, the lower the haze value of the first sheet tends to be. Therefore, the haze value of the first sheet can be adjusted by appropriately selecting the particle size of the pigment used, or by appropriately controlling the particle size of the pigment by setting the conditions during dispersion using a disperser such as a bead mill.

[0023] [Method for producing black resin composition] Black resin compositions can be produced by dispersing a mixture containing a pigment, a resin, and a liquid medium. Dispersion can be carried out according to conventionally known methods, such as using a bead mill, ball mill, roll mill, and paint shaker. The processed product obtained by dispersing a mixture containing a pigment, a resin, and a liquid medium may be used as the black resin composition, or the obtained processed product may be used as a colorant (precursor composition for the black resin composition), and the black resin composition may be prepared by mixing this colorant with various resins and liquid media.

[0024] (Black sheet-like molded material) The total light transmittance of the black sheet-like molded product is 0.7 to 6.0%, preferably 1.0 to 4.0%. Since the total light transmittance is within the above range, it is useful as an article such as a dark-colored translucent sheet with excellent opacity. The total light transmittance of the black sheet-like molded product can be adjusted, for example, by increasing or decreasing the pigment content (pigment concentration) in the solid content of the black resin composition.

[0025] In the CIE LAB (L*a*b*) color system, the a* value of the transmitted color of a black sheet-like molded material is -5 to 5, preferably -3.5 to 3.5. Setting the a* value of the transmitted color to -5 or higher makes it useful for articles such as dark translucent sheets with a more neutral color (achromatic, black) and suppressed green tones. Furthermore, setting the a* value of the transmitted color to 5 or lower makes it useful for articles such as dark translucent sheets with a more neutral color and suppressed red tones.

[0026] In the CIE LAB (L*a*b*) color system, the b* value of a transmitted color is -5 to 5, preferably -3.5 to 3.5. Setting the b* value of the transmitted color to -5 or higher is useful for articles such as dark translucent sheets with a more neutral hue, suppressing the blue tint. Similarly, setting the b* value of the transmitted color to 5 or lower is useful for articles such as dark translucent sheets with a more neutral hue, suppressing the yellow tint. The a* and b* values ​​of the transmitted color can be adjusted, for example, by controlling the mixing ratio of multiple pigments.

[0027] The L* value of the surface color of a black sheet-like molded product in the CIE LAB (L*a*b*) color system is 15.0 or less, preferably 8.0 to 10.0. By setting the L* value of the surface color, i.e., the lightness, to 15.0 or less, the surface color of the sheet can be expressed as a dark color. The L* value of the surface color can be adjusted, for example, by controlling the mixing ratio of multiple types of pigments.

[0028] The black sheet-like molded product of this embodiment is a coated and dried molded product of the aforementioned black resin composition, and therefore has excellent opacity, good light transmittance, low near-infrared absorption (high near-infrared transmittance), and is a colorless or very close to colorless sheet-like molded product. The thickness of the black sheet-like molded product is 10 to 40 μm, preferably 15 to 30 μm. The thickness of the black sheet-like molded product can be appropriately set depending on the type of pigment used, the pigment content, and the application.

[0029] The dark translucent sheet of this embodiment is a coated and dried molded product of the aforementioned black resin composition, and therefore readily transmits near-infrared light. Specifically, the near-infrared transmittance of the black sheet-like molded product at wavelengths of 700 to 1,400 nm is preferably 50% or more, and more preferably 70 to 90%. Therefore, by using the black sheet-like molded product of this embodiment, it is possible to construct an article that is less prone to problems such as remote controls using infrared lasers becoming less responsive.

[0030] Furthermore, the total light transmittance of the black sheet-like molded product of this embodiment is preferably 0.7 to 6.0%, and more preferably 1.0 to 4.0%. The a* value of the transmitted color of the black sheet-like molded product is preferably -5 to 5, and more preferably -3.5 to 3.5. The b* value of the transmitted color of the black sheet-like molded product is preferably -5 to 5, and more preferably -3.5 to 3.5. The L* value of the surface color of the black sheet-like molded product is preferably 15.0 or less, and more preferably 8.0 to 10.0. The a* value of the surface color of the black sheet-like molded product in the CIE LAB (L*a*b*) color system is preferably -5 to 5, and more preferably -3.5 to 3.5. The b* value of the surface color is preferably -5 to 5, and more preferably -3.5 to 3.5.

[0031] The black sheet-like molded product of this embodiment has excellent opacity, specifically, an opacity rate of 90% or more (preferably 92.0% or more) as measured by the measurement method described later, while also having good light transmittance and high near-infrared transmittance, and is achromatic or very close to achromatic in color. For this reason, the black sheet-like molded product of this embodiment is suitable as a component such as a dark-colored translucent sheet for vehicle interior materials such as instrument panels or for the frame portion of home appliances.

[0032] <Laminated structure> One embodiment of the laminate of the present invention comprises a base material and the above-mentioned black sheet-like molded product disposed on the base material, and can be used, for example, as a decorative film or a leather-like sheet. The type of base material constituting the laminate is not particularly limited and can be appropriately selected and used depending on the application. Examples of base materials include films made of various resins such as acrylic and PET, as well as glass, nonwoven fabrics, and woven fabrics. [Examples]

[0033] The present invention will be described in detail below based on examples, but the present invention is not limited to these examples. In the examples and comparative examples, "parts" and "%" are based on mass unless otherwise specified.

[0034] <Preparation of coloring agents> (Preparation Example 1) A mixture was obtained by mixing 20 parts of resin (1) (a solution of non-yellowing polycarbonate polyol polyurethane resin, 30% solids, 70% dimethylformamide (DMF)), 10 parts of perylene-based black pigment (1) (product name "Spectrasense Black L0082", manufactured by DIC Corporation), and 70 parts of DMF. The obtained mixture was placed in a horizontal bead mill disperser packed with zirconia beads (1.8 mm in diameter) and dispersed according to a conventional method to obtain black coloring agent (1).

[0035] (Preparation Examples 2-9) Except for using the types and amounts (in parts) of each component shown in Table 1, the preparations were carried out in the same manner as in Preparation Example 1 described above to obtain black colorant (2), black colorant (3), red colorant (1), yellow colorant (1), blue colorant (1), red colorant (2), yellow colorant (2), and blue colorant (2). Details of each component in Table 1 are shown below. • Resin (1): Solution of non-yellowing polycarbonate polyol-based polyurethane resin, solids content 30%, DMF 70% • Resin (2): Vinyl chloride-vinyl acetate-vinyl alcohol copolymer, product name "Solvine TAO", Shin-Etsu Chemical Co., Ltd., solids content 100% • Perylene-based black pigment (1): Product name "Spectrasense Black L0082", manufactured by DIC Corporation • Perylene-based black pigment (2): CI Pigment Black 32, product name "Spectrasense Black L0086", manufactured by DIC Corporation. • Perylene-based black pigment (3): Product name "Spectrasense Black K0088", manufactured by DIC Corporation • PR177: CI Pigment Red 177, product name "Chromofine Red 6605T", manufactured by Dainichi Seika Kogyo Co., Ltd. • PY83(1): CI Pigment Yellow 83, product name "Seika First Yellow 2700(H)", manufactured by Dainichi Seika Kogyo Co., Ltd. • PB15:1(1): CI Pigment Blue 15:1, Product name "Cyanine Blue ZC-7925", Manufactured by Dainichi Seika Kogyo Co., Ltd. • PY83(2): CI Pigment Yellow 83, product name "Seika First Yellow 2720", manufactured by Dainichi Seika Kogyo Co., Ltd. • PB15:1(2) CI Pigment Blue 15:1, Product name "Cyanine Blue N-901", Manufactured by Dainichi Seika Kogyo Co., Ltd. DMF: Dimethylformamide • MEK: Methyl ethyl ketone

[0036] TIFF0007909640000001.tif132170

[0037] <Manufacturing of black resin composition and sheet> (Example 1) The components listed below were mixed and thoroughly stirred to obtain a black resin composition. The total solids content (total content of pigment and resin) of the obtained black resin composition was 19.5%, with the pigment content being 6.0% and the polyurethane resin content being 94.0%. • Black coloring agent (1): 20 parts • Polycarbonate-based polyurethane resin (30% solids content): 100 parts ·DMF: 50 copies

[0038] The obtained black resin composition was applied to the surface of a PET film (100 μm thick) using an applicator to form a coating on the PET film. The wet application amount of the black resin composition was 105 g / m². 2 The coating was dried using a hot air dryer at 100°C for 2 minutes to form a 21 μm thick sheet (dark translucent sheet) on a PET film, thereby obtaining a laminate. Since the PET film is colorless and transparent, the evaluations performed on the laminate described below can all be considered as evaluations performed on the dark translucent sheet.

[0039] (Comparative Example 1) Wet application amount of black resin composition: 70 g / m² 2 Except for the above, a laminate was obtained by forming a 14 μm thick sheet on a PET film in the same manner as in Example 1 described above.

[0040] (Comparative Example 2) A black resin composition was obtained in the same manner as in Example 1, except that black colorant (2) was used instead of black colorant (1). Then, a laminate was obtained by forming a 21 μm thick sheet on a PET film in the same manner as in Example 1, except that the obtained black resin composition was used.

[0041] (Comparative Example 3) A black resin composition was obtained in the same manner as in Example 1, except that black colorant (3) was used instead of black colorant (1). Then, a laminate was obtained by forming a 21 μm thick sheet on a PET film in the same manner as in Example 1, except that the obtained black resin composition was used.

[0042] (Example 2) A black resin composition was obtained by mixing the black resin composition obtained in Comparative Example 2 and the black resin composition obtained in Comparative Example 3 in a 1:1 mass ratio. Then, a sheet with a thickness of 21 μm was formed on a PET film in the same manner as in Example 1 described above, except that the obtained black resin composition was used, to obtain a laminate.

[0043] (Comparative Example 4) A black colorant was obtained in the same manner as in Preparation Example 1 described above, except that carbon black was used instead of perylene-based black pigment (1). A black resin composition was obtained in the same manner as in Example 1 described above, except that 5 parts of the obtained black colorant were used. Then, a laminate was obtained by forming a 21 μm thick sheet on a PET film in the same manner as in Example 1 described above, except that the obtained black resin composition was used.

[0044] (Example 3) A black coloring agent was obtained by mixing a red coloring agent (1), a blue coloring agent (1), and a yellow coloring agent (1) in a mass ratio of 60:20:15. A black resin composition was obtained in the same manner as in Example 1, except that the obtained black coloring agent was used. Then, a laminate was obtained by forming a 21 μm thick sheet on a PET film in the same manner as in Example 1, except that the obtained black resin composition was used.

[0045] (Example 4) A black colorant was obtained by mixing red colorant (2), blue colorant (2), and yellow colorant (2) in a mass ratio of 85:65:30. A black resin composition was obtained in the same manner as in Example 1, except that the obtained black colorant was used. Then, a laminate was obtained by forming a 21 μm thick sheet on a PET film in the same manner as in Example 1, except that the obtained black resin composition was used.

[0046] (Example 5) The wet application rate of the black resin composition is 140 g / m². 2 Except for the above, a laminate was obtained by forming a 28 μm thick sheet on a PET film in the same manner as in Example 1 described above.

[0047] (Comparative Example 5) The wet application rate of the black resin composition is 175 g / m². 2 Except for the above, a laminate was obtained by forming a 35 μm thick sheet on a PET film in the same manner as in Example 1 described above.

[0048] (Comparative Example 6) A black resin composition was obtained in the same manner as in Example 1, except that the amount of black coloring agent (1) was 30 parts. Then, a sheet with a thickness of 21 μm was formed on a PET film in the same manner as in Example 1, except that the obtained black resin composition was used, to obtain a laminate.

[0049] (Example 6) Wet application amount of black resin composition: 70 g / m² 2 Except for the above, a laminate was obtained by forming a 14 μm thick sheet on a PET film in the same manner as in Comparative Example 6 described above.

[0050] (Example 7) A black resin composition was obtained in the same manner as in Comparative Example 5 described above, except that the amount of black coloring agent (1) was 10 parts. Then, a sheet with a thickness of 35 μm was formed on a PET film in the same manner as in Example 1 described above, except that the obtained black resin composition was used, to obtain a laminate.

[0051] (Comparative Example 7) The wet application rate of the black resin composition is 140 g / m². 2 Except for the above, a laminate was obtained by forming a 28 μm thick sheet on a PET film in the same manner as in Example 7 described above.

[0052] <Rating> (Total light transmittance) The total light transmittance of the sheet was measured using a haze measuring instrument (product name "HGM-2DP", manufactured by Suga Test Instruments Co., Ltd.) in accordance with the method compliant with JIS K 7361. The results are shown in Tables 2-1 and 2-2.

[0053] (Measurement of opacity and colorimetric measurement of surface color) A paper measuring opacity that meets the JIS K 5600 standard was placed on the PET film side of the sheet. Then, using a spectrophotometer (product name "CM-3700d", manufactured by Konica Minolta), color measurements were taken from the sheet side (380~700nm) to obtain color data. The obtained color data was expressed in the XYZ color system, and the opacity rate was defined as the percentage of "Yb / Yw" calculated from "Yw" measured on the white side of the opacity measuring paper and "Yb" measured on the black side. In addition, the sheet color (L* value, a* value, b* value) was defined as the data measured on the white side expressed in the CIE LAB (L*a*b*) color system. The results are shown in Tables 2-1 and 2-2.

[0054] (Color measurement of transmitted color) A spectrophotometer (product name "CM-3700d," manufactured by Konica Minolta) was used to measure the transmitted light from the sheet (380-700 nm) and obtain colorimetric data. The obtained colorimetric data was then expressed in the CIE LAB (L*a*b*) color system to obtain L*, a*, and b* values. The results are shown in Tables 2-1 and 2-2.

[0055] (Near infrared transmittance) The transmittance (simple average value) of the sheet in the near-infrared range (wavelength 700-2,500 nm) was measured and calculated using an ultraviolet, visible, and near-infrared spectrophotometer (product name "SolidApec-3700", manufactured by Shimadzu Corporation). The results are shown in Tables 2-1 and 2-2.

[0056] (Haze value on the first sheet) Using the manufactured black resin composition, first sheets with a total light transmittance of 10.0% were prepared by adjusting the pigment concentration and dry film thickness. The haze value of the first sheets was then measured using a haze meter (product name "HGM-2DP", manufactured by Suga Test Instruments Co., Ltd.). The results are shown in Tables 2-1 and 2-2.

[0057] (light transparency) The home screen of a smartphone (product name "iPhone® 13," manufactured by Apple Inc.) was displayed with maximum brightness. A sheet was placed on this home screen, and the home screen was visually inspected through the sheet. The light transmittance of the sheet was evaluated according to the evaluation criteria shown below. The results are shown in Tables 2-1 and 2-2. Of the evaluation criteria shown below, "4" and "5" represent levels that are not problematic in practical use. 5: Icons and names were clearly recognizable, and I didn't notice any color bias. 4: I was able to recognize icons and names, and I didn't notice any color bias. 3: I could recognize the icons, but I noticed a slight bias in the colors. 2: I could recognize the presence of the icons, but I couldn't discern their content, or I noticed an extreme bias in color. 1: The presence of the icon could not be recognized.

[0058] (Concealing ability) A printout was obtained by color printing the flags of the G20 member countries (3 cm in height) on white paper. A sheet was placed on the printout, and the opacity of the sheet was evaluated by visually checking whether the flags were visible through the sheet under conditions where strong light was not directly shining on it, according to the evaluation criteria shown below. The results are shown in Tables 2-1 and 2-2. Of the evaluation criteria shown below, "4" and "5" represent levels that are not problematic in practical use. 5: The flag was not visible through the fabric. 4: I had a feeling there was something there. 3: It was discovered that there was something square. 2: I was able to identify more than half of the national flags. 1: I was able to identify all the national flags.

[0059] TIFF0007909640000002.tif177170

[0060] TIFF0007909640000003.tif177170 [Industrial applicability]

[0061] The black sheet-like molded product of the present invention is useful as, for example, an article such as a dark-colored translucent sheet that constitutes an interior material for vehicles, such as an instrument panel, or the frame portion of a home appliance.

Claims

1. A laminate comprising a base material and a black sheet-like molded material disposed on the base material, The aforementioned black sheet-like molded product is a coated and dried molded product of a black resin composition (excluding those containing multiple types of pigments) consisting of a pigment (excluding carbon black), a resin, and a liquid medium. The first sheet, formed by coating and drying the aforementioned black resin composition, has a total light transmittance of 10.0% and a haze value of 55.0% or less. The aforementioned resin is a polyurethane resin, The aforementioned black sheet-like molded product satisfies the following conditions (1) to (4): A leather-like sheet in which the aforementioned pigment is a perylene-based black pigment. (1) The total light transmittance is 0.7 to 6.0%. (2) In the CIE LAB (L*a*b*) color system, the a* value of the transparent color is -5 to 5, and the b* value is -5 to 5. (3) The L* value of the surface color in the CIE LAB (L*a*b*) color system is 15.0 or less. (4) The thickness is 10 to 40 μm.

2. The leather-like sheet according to claim 1, wherein the content of the polyurethane resin in the black sheet-like molded product is 70% by mass or more, based on the total amount of the pigment and the polyurethane resin.

3. The leather-like sheet according to claim 1, wherein the pigment content in the black sheet-like molded product is 2 to 11% by mass, based on the total amount of the pigment and the polyurethane resin.

4. The leather-like sheet according to claim 1, wherein the near-infrared transmittance of the black sheet-like molded material at wavelengths of 700 to 1,400 nm is 50.0% or more.

5. The leather-like sheet according to claim 1, wherein the a* value of the surface color of the black sheet-like molded product in the CIE LAB (L*a*b*) color system is -5 to 5 and the b* value is -5 to 5.

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