WO2023123537A1 - 一种透白光复合膜层及其制备方法和应用 - Google Patents

一种透白光复合膜层及其制备方法和应用 Download PDF

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Publication number
WO2023123537A1
WO2023123537A1 PCT/CN2022/070769 CN2022070769W WO2023123537A1 WO 2023123537 A1 WO2023123537 A1 WO 2023123537A1 CN 2022070769 W CN2022070769 W CN 2022070769W WO 2023123537 A1 WO2023123537 A1 WO 2023123537A1
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Prior art keywords
layer
transparent
white light
composite film
indium
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PCT/CN2022/070769
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English (en)
French (fr)
Inventor
左建球
杨晓峰
傅相林
罗林
叶国强
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Ningbo Shintai Machines Co Ltd
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Ningbo Shintai Machines Co Ltd
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Priority to EP22912846.7A priority Critical patent/EP4458889A4/en
Priority to US18/725,122 priority patent/US20250060519A1/en
Publication of WO2023123537A1 publication Critical patent/WO2023123537A1/zh
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00634—Production of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00865—Applying coatings; tinting; colouring
    • B29D11/00894—Applying coatings; tinting; colouring colouring or tinting
    • B29D11/00903—Applying coatings; tinting; colouring colouring or tinting on the surface
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/06—Coating with compositions not containing macromolecular substances
    • 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
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/0015—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterized by the colour of the layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02—Pretreatment of the material to be coated
    • C23C14/024—Deposition of sublayers, e.g. to promote adhesion of the coating
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/20—Metallic material, boron or silicon on organic substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/02—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of crystals, e.g. rock-salt, semi-conductors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates

Definitions

  • the invention belongs to the technical field of light emission, and relates to a white light-transmitting composite film layer and a preparation method and application thereof.
  • Luminous grilles and luminous signs require products to emit white light, and some It is also necessary to integrate radar to cooperate with driving.
  • Existing white light-emitting products spray white paint with a specific film thickness on the transparent product, and match it with a backlight base plate that can emit white light. When the light is turned on, the product can see the white light from the front, but when the light is turned off by this method, only the light-transmitting area of the product can be seen.
  • PVD evaporative indium plating process can meet the requirements of the frontal observation of the product when the light is turned off, and the light-transmitting area of the product has a very good metallic silver color.
  • the light-transmitting color is obviously yellow, and the color temperature of the light-transmitting color is below 4500K. , can not meet the product white light, light color temperature in the 5200-7200K requirements.
  • the present invention aims at the deficiencies in the prior art, utilizes the complementary color principle in chromatics, and attaches a special dielectric layer on one side of the indium-plated layer, so that the composite film layer can transmit white light, and the color temperature of the transmitted white light is 5200-7200K.
  • the white light-transmitting composite film layer includes a dielectric layer and an indium-coated layer, wherein the dielectric layer is closer to the white light source than the indium-coated layer;
  • the medium layer is a transparent paint containing 0.5-8% blue pigment and 0-2% purple pigment; or the medium layer is a transparent plastic film containing 0.5-8% blue pigment and 0-2% purple pigment.
  • the CMYK value of the blue pigment is selected from one or more of the following:
  • the CMYK value of the purple pigment is selected from one or more of the following:
  • the average particle size of the blue pigment and the violet pigment is 0.15-1.5 ⁇ m.
  • the white light-transmitting composite film layer further includes a transparent panel, and the indium-plated layer is located on either side of the transparent panel.
  • the white light-transmitting composite film layer sequentially includes a dielectric layer, an indium-plated layer, a transparent primer layer and a transparent panel.
  • the thicknesses of the dielectric layer, the indium plating layer, the transparent primer layer and the transparent panel are respectively 5-35 ⁇ m, 15-50 nm, 15-30 ⁇ m and 1-10 mm.
  • the white light-transmitting composite film layer sequentially includes a dielectric layer, an indium-plated layer and a transparent panel.
  • the thicknesses of the dielectric layer, the indium plating layer and the transparent panel are respectively 5-35 ⁇ m, 15-50 nm and 1-10 mm.
  • the white light-transmitting composite film layer sequentially includes a dielectric layer, a transparent panel, a transparent primer layer, an indium-plated layer, and a transparent paint layer.
  • the thicknesses of the dielectric layer, the transparent panel, the transparent primer layer, the indium plating layer and the transparent paint layer are 5-35 ⁇ m, 1-10 mm, 15-30 ⁇ m, 15-50 nm and 15-30 ⁇ m respectively.
  • the white light-transmitting composite film layer sequentially includes a transparent panel, a dielectric layer, an indium-plated layer and a transparent paint layer.
  • the thicknesses of the transparent panel, the dielectric layer, the indium plating layer and the transparent paint layer are respectively 1-10mm, 5-35 ⁇ m, 15-50nm and 15-30 ⁇ m.
  • the color coordinates of the transmitted light are within the range surrounded by the following six color coordinate lines:
  • the color coordinates of the transmitted light are within the range surrounded by the following six color coordinate lines:
  • Another aspect of the present invention provides a method for preparing a white light-transmitting composite film layer.
  • the medium layer is a transparent paint containing 0.5-8% blue pigment and 0-2% purple pigment
  • the preparation method includes the following steps:
  • the preparation method includes the following steps:
  • a transparent plastic film containing 0.5-8% of blue pigment and 0-2% of purple pigment is pasted on the indium-plated layer to form a medium layer, that is, a white light-transmitting composite film layer is obtained.
  • the third aspect of the present invention provides a light-emitting object, including a white light source, the white light-transmitting composite film layer described in claim 1, the dielectric layer in the white-light composite film layer is closer to the white light source than the indium-plated layer, and the white light source After the emitted white light passes through the white light-transmitting composite film layer, the color coordinates of the transmitted light are within the range surrounded by the following six color coordinate lines: A (0.310, 0.348), B (0.453, 0.440), C (0.500, 0.440), D (0.500, 0.382), E (0.443, 0.382), F (0.310, 0.283),
  • the luminous objects can be exemplified as vehicle-mounted luminous grilles, luminous signs, luminous decorations, and the like.
  • the present invention has the following beneficial effects:
  • the present invention adds a layer of medium layer of transparent paint containing blue pigments and purple pigments or a medium layer of transparent plastic film containing blue pigments and purple pigments on the back of the indium-plated layer, and the composite film can be realized by complementary colors Transparent white light, and the color temperature can reach 5200 ⁇ 7200K;
  • the dielectric layer of the present invention is located on the back of the indium-plated layer.
  • the white light source When the white light source is not turned on, it will not affect the metal texture of the light-transmitting area of the composite film layer viewed from the front by the observer. Therefore, the white light-transmitting composite film layer of the present invention It can not only transmit pure white light, but also meet the condition of metallic appearance;
  • the structure of the white light-transmitting composite film layer of the present invention is various, as long as the dielectric layer is located on the back of the indium-plated layer, the actual structure of the white light-transmitting composite film layer can be adjusted according to actual product needs;
  • the white light-transmitting composite film layer of the present invention can be applied to light-emitting objects such as vehicle-mounted light-emitting grilles, light-emitting signs, and interior and exterior light-emitting decorations, so as to realize the requirements of white light-transmitting and metallic appearance of the light-emitting objects.
  • Figure 1 is the color coordinate range of white light
  • Fig. 2 is the first structure of the white light-transmitting composite film layer of the present invention
  • Fig. 3 is the second structure of the white light-transmitting composite film layer of the present invention.
  • Fig. 4 is the third structure of the white light-transmitting composite film layer of the present invention.
  • Fig. 5 is the fourth structure of the white light-transmitting composite film layer of the present invention.
  • Fig. 6 is a schematic structural view of the luminous object of the present invention.
  • Transparent or translucent objects light can penetrate the object, part of the light that hits the object is absorbed by the object, and part of it passes through the object, the light absorbed by the object cannot be seen, and the light that passes through the object can enter the human eye, different objects It can transmit different colors of light, so the color of a transparent object is determined by the color light it transmits.
  • the structural characteristics of PVD indium coating film are the root cause of the yellowing of the translucent color of the coating.
  • the present invention sets a dielectric layer with a specific color on the back of the indium-plated layer (the back of the indium-plated layer is defined as the side close to the white light source).
  • the back of the indium-plated layer is defined as the side close to the white light source.
  • the white light-transmitting composite film layer includes a dielectric layer and an indium-plated layer
  • the medium layer is a transparent paint containing 0.5-8% blue pigment and 0-2% purple pigment; or the medium layer is a transparent plastic film containing 0.5-8% blue pigment and 0-2% purple pigment.
  • the medium layer in the white light-transmitting composite film layer is closer to the white light source than the indium-plated layer, and the white light emitted by the white light source passes through the medium layer and the indium-plated layer in turn. After the white light passes through the white-light-transmitting composite film layer, the transmitted light
  • the color coordinates are within the range enclosed by the following 6 color coordinate lines:
  • the CMYK value of the blue pigment in the medium layer is preferably selected from one or more of the following: C35 M0 Y20 K0, C40 M0 Y10 K0, C60 M0 Y10 K0, C70 M10 Y0 K0, C45 M10 Y10 K0, C30 M0 Y10 K10 ⁇ C40 M10 Y0 K20 ⁇ C60 M15 Y0 K30 ⁇ C75 M30 Y10 K15 ⁇ C80 M10 Y20 K0 ⁇ C95 M25 Y45 K0 ⁇ C100 M50 Y45 K0 ⁇ C100 M35 Y10 K0 ⁇ C95 M60 Y0 K 0, C100 M80 Y0 K0, C90 M70 Y0 K0 ;
  • the CMYK value of the purple pigment in the medium layer is preferably selected from one or more of the following: C55 M85 Y0 K0, C45 M70 Y50 K0, C60 M95 Y95 K20.
  • the average particle diameter of the blue pigment and the violet pigment is preferably 0.15 to 1.5 ⁇ m.
  • the specific addition ratio of the blue pigment and the violet pigment in the dielectric layer depends on the CMYK value, particle size, and thickness of the indium-plated layer of the selected blue pigment and violet pigment.
  • the white light-transmitting composite film layer further includes a transparent panel, and the indium-plated layer is located on any side of the transparent panel.
  • the indium-plated layer can be adjacent to the transparent panel, or can be separated from the transparent panel by 1 to 3 film layers.
  • the white light-transmitting composite film layer includes a dielectric layer 4, an indium-plated layer 3, a transparent primer layer 2, and a transparent panel 1 in sequence, as shown in FIG.
  • Layer 3 is closer to the white light source, and the white light emitted by the white light source passes through the dielectric layer 4 , the indium-coated layer 3 , the transparent primer layer 2 and the transparent panel 1 in sequence.
  • the thicknesses of the dielectric layer 4 , the indium-plated layer 3 , the transparent primer layer 2 and the transparent panel 1 are 5-35 ⁇ m, 15-50 nm, 15-30 ⁇ m and 1-10 mm, respectively.
  • the preparation method of the white light-transmitting composite film layer comprises the following steps:
  • transparent plastics are polycarbonate, PVC, PET or PP transparent plastics.
  • the transparent primer is a mixture of transparent, liquid acrylic or epoxy resin as the main component, which can be used for various coating processing operations . After drying and curing, it will produce cross-linked adhesion with the transparent panel and the indium-plated layer, improve the adhesion between the transparent panel and the indium-plated layer, and enhance the metal feeling and test performance of the indium-plated layer.
  • the transparent coating that forms the medium layer is a mixture of transparent, liquid epoxy resin or acrylic resin as the main component. After adding pigments, it can be used for various coating processing operations after being mixed evenly.
  • the resin composition of the transparent coating and the transparent primer is the same, and the difference between the two is that some additives are different.
  • the coating methods of coating transparent primer slurry on the transparent panel and coating the transparent coating containing blue pigment and purple pigment on the indium plating layer include but are not limited to spray coating, pad printing, silk screen printing, flow coating, spray painting, etc. Coating film formation method.
  • the preparation method of the white light-transmitting composite film layer comprises the following steps:
  • the white light-transmitting composite film layer includes a dielectric layer 4, an indium-coated layer 3, and a transparent panel 1 in sequence, as shown in FIG.
  • Light source the white light emitted by the white light source passes through the dielectric layer 4 , the indium-coated layer 3 and the transparent panel 1 in sequence.
  • the thicknesses of the dielectric layer 4, the indium-plated layer 3 and the transparent panel 1 are 5-35 ⁇ m, 15-50 nm and 1-10 mm respectively.
  • the preparation method of the white light-transmitting composite film layer comprises the following steps:
  • the white light-transmitting composite film layer sequentially includes a dielectric layer 4, a transparent panel 1, a transparent primer layer 2, an indium-plated layer 3 and a transparent paint layer 5, wherein the dielectric layer 4 is closer to the white light source than the indium-plated layer 3, and the white light emitted by the white light source passes through the dielectric layer 4, the transparent panel 1, the transparent primer layer 2, the indium-plated layer 3 and the transparent paint layer 5 in sequence.
  • the thicknesses of the dielectric layer 4, the transparent panel 1, the transparent primer layer 2, the indium plating layer 3 and the transparent paint layer 5 are 5-35 ⁇ m, 1-10 mm, 15-30 ⁇ m, 15-50 nm and 15-30 ⁇ m respectively.
  • the preparation method of the white light-transmitting composite film layer comprises the following steps:
  • the composition of the transparent paint forming the transparent paint layer is the same as the composition of the transparent paint forming the medium layer. After the transparent paint layer is dried and solidified, it will form cross-linking and adhesion with the contact layer to protect the inner wrapping layer.
  • the white light-transmitting composite film layer sequentially includes a transparent panel 1, a dielectric layer 4, an indium-plated layer 3 and a transparent paint layer 5, wherein the dielectric layer 4 is relatively opposite to the indium-plated layer.
  • Layer 3 is closer to the white light source, and the white light emitted by the white light source passes through the transparent panel 1 , the dielectric layer 4 , the indium-plated layer 3 and the transparent paint layer 5 in sequence.
  • the thicknesses of the transparent panel 1, the dielectric layer 4, the indium-plated layer 3 and the transparent paint layer 5 are 1-10 mm, 5-35 ⁇ m, 15-50 nm and 15-30 ⁇ m respectively.
  • the preparation method of the white light-transmitting composite film layer comprises the following steps:
  • a transparent paint is coated on the indium-plated layer 3 to form a transparent paint layer 5, that is, a white light-transmitting composite film layer is obtained.
  • a luminescent object including a white light source and a white light-transmitting composite film layer.
  • the white light-transmitting composite film layer sequentially including a dielectric layer, an indium-plated layer, a transparent primer layer and a transparent panel as an example
  • the light-emitting object is shown in Figure 6, including a white light source 6, a dielectric layer 4, an indium-plated layer 3, and a transparent primer layer 2 and the transparent panel 1, the white light emitted by the white light source 6 passes through the medium layer 4, the indium-plated layer 3, the transparent base layer 2 and the transparent panel 1 in sequence, and the color coordinates of the transmitted light are located in the circle surrounded by the following six color coordinate lines In range: A(0.310, 0.348), B(0.453, 0.440), C(0.500, 0.440), D(0.500, 0.382), E(0.443, 0.382), F(0.310, 0.283),
  • the transparent primer slurry is VB3390U produced by Fujikura, Japan
  • the transparent paint is VT3391U produced by Fujikura, Japan.
  • CMYK value of C60 M0 Y10 K0 water blue pigment (average particle size is 200nm) and 0.6 part of CMYK value of C45 M70 Y50 K0 maroon pigment (average particle size is 400nm) with 100 parts of transparent polycarbonate
  • the ester plastics are mixed evenly, extruded and calendered to form a transparent plastic film, and then pasted on the PVD indium-coated layer to form a dielectric layer with a thickness of 18 ⁇ m, that is, a white light-transmitting composite film layer is obtained.
  • the transparent paint is sprayed on the PVD indium plating layer, and after curing, a transparent paint layer with a thickness of 25 ⁇ m is formed to obtain a white light-transmitting composite film layer.
  • Comparative Example 1 The difference between Comparative Example 1 and Example 1 is that no medium layer is formed in the composite film layer of Comparative Example 1.
  • the white light emitted by a white light source with a color temperature of 6300K was used to irradiate the white light-transmitting composite film layers of Examples 1-4 and Comparative Example 1, and the color coordinates and color temperature data of the transmitted light were tested with an LMK imaging luminance meter.
  • Table 1 The results are shown in Table 1 below:
  • Example 2 Using the white light-transmitting composite film layer of Example 1 in combination with a white light source, a car luminous object was prepared.
  • the car luminous object When the white light source is not turned on, the car luminous object has a good metal effect when viewed by human eyes; when the white light source is turned on, white light passes through the object, and the human eye sees the car luminous object as white light.
  • the LMK imaging luminance meter tests the color coordinates and color temperature data of the transmitted light, which shows that the color coordinates of the light passing through the car's luminous objects are within the range of white light color coordinates, and the color temperature is also within the range of 5200-7200K.
  • the human eye can see that it has a good metal effect; when the white light source is turned on, the white light passes through the object, and the human eye visually sees the car luminous object as yellow.
  • the LMK imaging luminance meter tests the color coordinates and color temperature data of the transmitted light.
  • the color coordinates of the light passing through the car's luminous objects are not within the range of white light color coordinates, and the color temperature is not within the range of 5200-7200K.

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  • Chemical & Material Sciences (AREA)
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Abstract

一种透白光复合膜层，具有介质层和镀铟层，其中介质层相对于镀铟层更靠近白光光源；所述介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明涂料；或者所述介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明塑料薄膜。所述透白光复合膜层利用色彩学中补色原理，在镀铟层一侧附着特殊的介质层，可实现复合膜层层透白光，且透过的白光色温值为5200～7200K。

Description

一种透白光复合膜层及其制备方法和应用 技术领域
本发明属于发光技术领域，涉及一种透白光复合膜层及其制备方法和应用。
背景技术
随着汽车行业节能环保、智能化的发展，车载发光透波产品将越来越普及，如发光格栅、发光标牌、发光内外饰件等，发光格栅、发光标牌要求产品发白光，有的还要集成雷达配合驾驶。现有发白光产品通过在透明产品上喷特定膜厚的白漆，搭配可发白光的背光底板，点亮灯时从正面观察产品透白光，但此法熄灯时只能看到产品透光区域是普通白色，没有金属电镀银色的高档质感，不能满足高端发光产品的外观需求。而通过PVD蒸发镀铟工艺可以满足熄灯时正面观察产品透光区域具有很好的金属银色，但是搭配可发白光的背光底板时，透光色是明显黄光，透光色的色温在4500K以下，不能满足产品透白光、光线色温在5200-7200K的要求。不管如何调整PVD镀铟层厚度、镀膜真空度高低、蒸发源钨丝位置、钨丝的数量、镀膜蒸发参数等均不能满足让PVD镀铟层透白光。
发明内容
本发明针对现有技术中的不足，利用色彩学中补色原理，在镀铟层一侧附着特殊的介质层，可实现复合膜层透白光，且透过的白光色温值为5200～7200K。
本发明一个方面提供了一种透白光复合膜层，所述透白光复合膜层包括介质层和镀铟层，其中介质层相对于镀铟层更靠近白光光源；
所述介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明涂料；或者所述介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透 明塑料薄膜。
作为优选，所述蓝色颜料的CMYK值选自以下一种或多种：
C35 M0 Y20 K0、C40 M0 Y10 K0、C60 M0 Y10 K0、C70 M10 Y0 K0、C45 M10 Y10 K0、C30 M0 Y10 K10、C40 M10 Y0 K20、C60 M15 Y0 K30、C75 M30 Y10 K15、C80 M10 Y20 K0、C95 M25 Y45 K0、C100 M50 Y45 K0、C100 M35 Y 10 K0、C95 M60 Y0 K0、C100 M80 Y0 K0、C90 M70 Y0 K0；
所述紫色颜料的CMYK值选自以下一种或多种：
C55 M85 Y0 K0、C45 M70 Y50 K0、C60 M95 Y95 K20。
作为优选，蓝色颜料和紫色颜料的平均粒径为0.15～1.5μm。
作为优选，所述透白光复合膜层还包括透明面板，镀铟层位于透明面板的任意一侧。
作为优选，所述透白光复合膜层依次包括介质层、镀铟层、透明打底层和透明面板。
作为优选，介质层、镀铟层、透明打底层和透明面板的厚度分别为5-35μm、15～50nm、15～30μm和1～10mm。
作为优选，所述透白光复合膜层依次包括介质层、镀铟层和透明面板。
作为优选，介质层、镀铟层和透明面板的厚度分别为5-35μm、15～50nm和1～10mm。
作为优选，所述透白光复合膜层依次包括介质层、透明面板、透明打底层、镀铟层和透明涂料层。
作为优选，介质层、透明面板、透明打底层、镀铟层和透明涂料层的厚度分别为5-35μm、1～10mm、15～30μm、15～50nm和15～30μm。
作为优选，所述透白光复合膜层依次包括透明面板、介质层、镀铟层和透明涂料层。
作为优选，透明面板、介质层、镀铟层和透明涂料层的厚度 分别为1～10mm、5-35μm、15～50nm和15～30μm。
作为优选，白光光源照射透白光复合膜层后，透过的光的色坐标位于由以下6个色坐标直线围成的范围内：
A(0.310，0.348)、B(0.453，0.440)、C(0.500，0.440)、D(0.500，0.382)、E(0.443，0.382)、F(0.310、0.283)，
且透过的光的色温值为5200～7200K。
作为优选，白光光源照射透白光复合膜层后，透过的光的色坐标位于由以下6个色坐标直线围成的范围内：
A(0.310，0.348)、B(0.453，0.440)、C(0.500，0.440)、D(0.500，0.382)、E(0.443，0.382)、F(0.310、0.283)，
且透过的光的色温值为5500～7000K。
本发明另一个方面提供了一种透白光复合膜层的制备方法，当介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明涂料，所述制备方法包括以下步骤：
将透明塑料注塑形成透明面板；
在透明面板一侧涂覆透明打底浆料，形成透明打底层；
在透明打底层上通过物理气相沉积蒸发镀铟，形成镀铟层；
在镀铟层上涂覆含0.5～8％蓝色颜料和0～2％紫色颜料的透明涂料，形成介质层，即获得透白光复合膜层；
当介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明塑料薄膜，所述制备方法包括以下步骤：
将透明塑料注塑形成透明面板；
在透明面板一侧涂覆透明打底浆料，形成透明打底层；
在透明打底层上通过物理气相沉积蒸发镀铟，形成镀铟层；
在镀铟层上贴合含0.5～8％蓝色颜料和0～2％紫色颜料的透明塑料薄膜，形成介质层，即获得透白光复合膜层。
本发明第三个方面提供了一种发光物件，包括白光光源、权利要求1所述的透白光复合膜层，透白光复合膜层中的介质层相 对于镀铟层更靠近白光光源，白光光源发出的白光透过所述透白光复合膜层后，透过的光的色坐标位于由以下6个色坐标直线围成的范围内：A(0.310，0.348)、B(0.453，0.440)、C(0.500，0.440)、D(0.500，0.382)、E(0.443，0.382)、F(0.310、0.283)，
且透过的光的色温值为5200～7200K。
所述发光物件可以列举为车载发光格栅、发光标牌、发光装饰件等。
与现有技术相比，本发明具有如下有益效果：
1、本发明在镀铟层的背面增加一层含蓝色颜料和紫色颜料的透明涂料的介质层或含蓝色颜料和紫色颜料的透明塑料薄膜的介质层，通过颜色互补，可实现复合膜层透白光，且色温也能达到5200～7200K；
2、本发明的介质层位于镀铟层的背面，白光光源没有打开的情况下，也不会影响观察者从正面看复合膜层透光区域的金属质感，因此本发明的透白光复合膜层不仅能透纯白光，又能满足外观为金属色的条件；
3、本发明的透白光复合膜层结构多样，只要保证介质层位于镀铟层的背面即可，透白光复合膜层的实际结构可以根据实际产品需要进行调整；
4、本发明的透白光复合膜层可应用于车载发光格栅、发光标牌、内外发光装饰件等发光物件中，实现发光物件透白光，且具有金属色外观的要求。
附图说明
图1为白光的色坐标范围；
图2为本发明透白光复合膜层的第一种结构；
图3为本发明透白光复合膜层的第二种结构；
图4为本发明透白光复合膜层的第三种结构；
图5为本发明透白光复合膜层的第四种结构；
图6为本发明发光物件的结构示意图；
图中：1、透明面板；2、透明打底层；3、镀铟层；4、介质层；5、透明涂料层；6、白光光源。
具体实施方式
在下文中，针对本发明的透白光复合膜层及其制备方法将详细地描述实施方式，然而，这些实施方式是示例性的，本发明公开内容不限于此。且本文中所使用的附图，仅仅是为了更好地说明本发明所公开内容，对保护范围并不具有限制作用。
透明或者半透物体，光线可以穿透物体，射向物体的光线一部分被物体吸收，一部分穿过物体，被物体吸收的光线无法被看到，而穿过物体的光线才能进入人眼，不同物体可透过不同颜色的光，所以透明物体的颜色由它透过的色光决定，PVD镀铟膜的结构特性是导致镀层透光色发黄的根本原因。
基于上述原理，本发明在镀铟层背面(镀铟层的背面定义为靠近白光光源的一面)设置一层具有特定颜色的介质层，通过镀铟层和介质层颜色互补，解决因镀铟层吸收部分光线而导致的发黄问题，具有调和光色让产品发白光的效果。
本发明的一些实施方式中，所述透白光复合膜层包括介质层和镀铟层；
所述介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明涂料；或者所述介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明塑料薄膜。
透白光复合膜层中的介质层相对于镀铟层更靠近白光光源，白光光源发出的白光依次透过介质层和镀铟层，白光透过该透白光复合膜层后，透过的光的色坐标位于由以下6个色坐标直线围成的范围内：
A(0.310，0.348)、B(0.453，0.440)、C(0.500，0.440)、D(0.500，0.382)、E(0.443，0.382)、F(0.310、0.283)，如图 1所示，这6个色坐标直线围成的区域为白光的色坐标范围；
且透过的光色温值为5200～7200K。
介质层中的蓝色颜料的CMYK值优选为选自以下一种或多种：C35 M0 Y20 K0、C40 M0 Y10 K0、C60 M0 Y10 K0、C70 M10 Y0 K0、C45 M10 Y10 K0、C30 M0 Y10 K10、C40 M10 Y0 K20、C60 M15 Y0 K30、C75 M30 Y10 K15、C80 M10 Y20 K0、C95 M25 Y45 K0、C100 M50 Y45 K0、C100 M35 Y10 K0、C95 M60 Y0 K0、C100 M80 Y0 K0、C90 M70 Y0 K0；
介质层中的紫色颜料的CMYK值优选为选自以下一种或多种：C55 M85 Y0 K0、C45 M70 Y50 K0、C60 M95 Y95 K20。
蓝色颜料和紫色颜料的平均粒径优选为0.15～1.5μm。
介质层中的蓝色颜料和紫色颜料的具体添加比例视选择的蓝色颜料和紫色颜料的CMYK值、粒径大小、镀铟层厚度等而定。
本发明的另一些实施方式中，所述透白光复合膜层还包括透明面板，镀铟层位于透明面板的任意一侧。镀铟层可以与透明面板紧邻，也可以与透明面板相隔1～3个膜层。
本发明的另一些实施方式中，所述透白光复合膜层如图2所示，依次包括介质层4、镀铟层3、透明打底层2和透明面板1，其中介质层4相对于镀铟层3更靠近白光光源，白光光源发出的白光依次透过介质层4、镀铟层3、透明打底层2和透明面板1。
介质层4、镀铟层3、透明打底层2和透明面板1的厚度分别为5-35μm、15～50nm、15～30μm和1～10mm。
当介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明涂料时，所述透白光复合膜层的制备方法包括以下步骤：
将透明塑料注塑形成透明面板1；
在透明面板1一侧涂覆透明打底浆料，形成透明打底层2；
在透明打底层2上通过物理气相沉积(PVD)蒸发镀铟，形成镀铟层3；
在透明涂料中添加蓝色颜料和紫色颜料(100份透明涂料中添加0.5～8份蓝色颜料和0～2份紫色颜料)混合均匀后，然后涂覆在镀铟层3上，形成介质层4，即获得透白光复合膜层。
透明塑料举例为聚碳酸酯、PVC、PET或PP透明塑料。
PVD蒸发镀铟前在透明面板上先涂覆一层透明打底浆料，透明打底浆料为透明的、液态的丙烯酸或者环氧树脂为主要成分的混合物，可用于各种涂覆加工作业，干燥固化后与透明面板和镀铟层产生交联附着，提高透明面板和镀铟层的粘附力，增强镀铟层金属感和测试性能。
形成介质层的透明涂料为透明的、液态的环氧树脂或者丙烯酸树脂为主要成分的混合物，添加颜料后混合均匀可用于各种涂覆加工作业，干燥固化后与其上下层产生交联附着。透明涂料与透明打底浆料的树脂成分相同，两者差别在于某些添加剂不同。
在透明面板上涂覆透明打底浆料，以及在镀铟层上涂覆含蓝色颜料和紫色颜料的透明涂料的涂覆方式包括但不限于喷涂、移印、丝印、淋涂、喷绘等涂层成膜方式。
当介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明塑料薄膜，所述透白光复合膜层的制备方法包括以下步骤：
将透明塑料注塑形成透明面板1；
在透明面板1一侧涂覆透明打底浆料，形成透明打底层2；
在透明打底层2上通过物理气相沉积蒸发镀铟，形成镀铟层3；
将蓝色颜料和紫色颜料与透明塑料混合均匀(100份透明塑料中添加0.5～8份蓝色颜料和0～2份紫色颜料)，挤出压延形成透明塑料薄膜后，贴合在镀铟层3上，形成介质层4，即获得透白光复合膜层。
本发明的另一些实施方式中，所述透白光复合膜层如图3所示，依次包括介质层4、镀铟层3和透明面板1，其中介质层4 相对于镀铟层3更靠近白光光源，白光光源发出的白光依次透过介质层4、镀铟层3和透明面板1。
介质层4、镀铟层3和透明面板1的厚度分别为5-35μm、15～50nm和1～10mm。
所述透白光复合膜层的制备方法包括以下步骤：
将透明塑料注塑形成透明面板1；
在透明面板1上通过物理气相沉积蒸发镀铟，形成镀铟层3；
在透明涂料中添加蓝色颜料和紫色颜料混合均匀后，然后涂覆在镀铟层3上，形成介质层4，即获得透白光复合膜层；或者将蓝色颜料和紫色颜料与透明塑料混合均匀，挤出压延形成透明塑料薄膜后，贴合在镀铟层3上，形成介质层4。
本发明的另一些实施方式中，所述透白光复合膜层如图4所示，依次包括介质层4、透明面板1、透明打底层2、镀铟层3和透明涂料层5，其中介质层4相对于镀铟层3更靠近白光光源，白光光源发出的白光依次透过介质层4、透明面板1、透明打底层2、镀铟层3和透明涂料层5。
介质层4、透明面板1、透明打底层2、镀铟层3和透明涂料层5的厚度分别为5-35μm、1～10mm、15～30μm、15～50nm和15～30μm。
所述透白光复合膜层的制备方法包括以下步骤：
将透明塑料注塑形成透明面板1；
在透明面板1一侧涂覆透明打底浆料，形成透明打底层2；
在透明打底层2上通过物理气相沉积蒸发镀铟，形成镀铟层3；
在镀铟层3上涂覆透明涂料，形成透明涂料层5；
在透明涂料中添加蓝色颜料和紫色颜料混合均匀后，然后涂覆在透明面板1的另一侧，形成介质层4，即获得透白光复合膜层；或者将蓝色颜料和紫色颜料与透明塑料混合均匀，挤出压延 形成透明塑料薄膜后，贴合在透明面板1的另一侧，形成介质层4，即获得透白光复合膜层。
形成透明涂料层的透明涂料成分与形成介质层的透明涂料成分相同，透明涂料层干燥固化后与其接触层产生交联附着，对内部包裹层起到保护作用。
本发明的另一些实施方式中，所述透白光复合膜层如图5所示，依次包括透明面板1、介质层4、镀铟层3和透明涂料层5，其中介质层4相对于镀铟层3更靠近白光光源，白光光源发出的白光依次透过透明面板1、介质层4、镀铟层3和透明涂料层5。
透明面板1、介质层4、镀铟层3和透明涂料层5的厚度分别为1～10mm、5-35μm、15～50nm和15～30μm。
所述透白光复合膜层的制备方法包括以下步骤：
将透明塑料注塑形成透明面板1；
在透明涂料中添加蓝色颜料和紫色颜料混合均匀后，然后涂覆在透明面板1的一侧，形成介质层4；或者将蓝色颜料和紫色颜料与透明塑料混合均匀，挤出压延形成透明塑料薄膜后，贴合在透明面板1的一侧，形成介质层4；
在介质层4上通过物理气相沉积蒸发镀铟，形成镀铟层3；
在镀铟层3上涂覆透明涂料，形成透明涂料层5，即获得透白光复合膜层。
本发明的另一些实施例中，还提供一种发光物件，包括白光光源、透白光复合膜层。以透白光复合膜层依次包括介质层、镀铟层、透明打底层和透明面板为例，发光物件如图6所示，包括白光光源6、介质层4、镀铟层3、透明打底层2和透明面板1，白光光源6发出的白光依次透过介质层4、镀铟层3、透明打底层2和透明面板1，透过的光的色坐标位于由以下6个色坐标直线围成的范围内：A(0.310，0.348)、B(0.453，0.440)、C(0.500，0.440)、D(0.500，0.382)、E(0.443，0.382)、F(0.310、0.283)，
且透过的光的色温值为5200～7200K。
下面通过具体实施例，对本发明的技术方案作进一步描述说明，应当理解的是，此处所描述的具体实施例仅用于帮助理解本发明，不用于本发明的具体限制。如果无特殊说明，本发明的实施例中所采用的原料均为本领域常用的原料，实施例中所采用的方法，均为本领域的常规方法。
以下实施例中，透明打底浆料为日本藤仓生产的VB3390U，透明涂料为日本藤仓生产的VT3391U。
实施例1
本实施例的透白光复合膜层的制备方法具体为：
将透明聚碳酸酯塑料注塑形成厚度为5mm透明面板；
在透明面板一侧喷涂透明打底浆料，固化后形成厚度为20μm透明打底层；
在透明打底层上通过物理气相沉积蒸发镀铟，形成厚度为20nm的PVD镀铟层；
在100份透明涂料中添加2份CMYK值为C40M0Y10K0的浅天蓝色颜料(平均粒径为300nm)和0.5份CMYK值为C55M85Y0K0的纯紫色颜料(平均粒径为300nm)混合均匀后，喷涂在PVD镀铟层上，固化后形成15μm介质层，即获得透白光复合膜层。
实施例2
本实施例的透白光复合膜层的制备方法具体为：
将透明聚碳酸酯塑料注塑形成厚度为6mm透明面板；
在透明面板上通过物理气相沉积蒸发镀铟，形成厚度为25nm的PVD镀铟层；
将3份CMYK值为C60 M0 Y10 K0的水蓝蓝色颜料(平均粒径为200nm)和0.6份CMYK值为C45 M70 Y50 K0的酱紫色颜料(平均粒径为400nm)与100份透明聚碳酸酯塑料混合均匀， 挤出压延形成透明塑料薄膜后，贴合在PVD镀铟层上，形成厚度为18μm的介质层，即获得透白光复合膜层。
实施例3
本实施例的透白光复合膜层的制备方法具体为：
将透明聚碳酸酯塑料注塑形成厚度为4mm透明面板；
在透明面板一侧喷涂透明打底浆料，固化后形成厚度为15μm透明打底层；
在透明打底层上通过物理气相沉积蒸发镀铟，形成厚度为30nm的PVD镀铟层；
在PVD镀铟层上喷涂透明涂料，固化后形成厚度为20μm透明涂料层；
在100份透明涂料中添加3.5份CMYK值为C95 M60 Y0 K0的钴蓝颜料(平均粒径为300nm)混合均匀后，喷涂在透明面板的另一侧，固化后形成20μm介质层，即获得透白光复合膜层。
实施例4
本实施例的透白光复合膜层的制备方法具体为：
将透明聚碳酸酯塑料注塑形成厚度为7mm透明面板；
在100份透明涂料中添加2.3份CMYK值为C70 M10 Y0 K0的蔚蓝颜料(平均粒径为500nm)和1份CMYK值为C45 M70 Y50 K0的酱紫色颜料(平均粒径为400nm)混合均匀后，喷涂在透明面板的一侧，固化后形成22μm介质层；
在介质层上通过物理气相沉积蒸发镀铟，形成厚度为35nm的PVD镀铟层；
在PVD镀铟层上喷涂透明涂料，固化后形成厚度为25μm透明涂料层，即获得透白光复合膜层。
对比例1
对比例1与实施例1的区别在于，对比例1的复合膜层中未形成介质层。
用白光光源发射色温为6300K的白光照射实施例1-4以及对比例1的透白光复合膜层，用LMK成像亮度计测试透过的光的色坐标及色温数据，结果如下表1所示：
表1透过的光的色坐标及色温数据
Figure PCTCN2022070769-appb-000001
实施例5
使用实施例1的透白光复合膜层与白光光源结合，制备了汽车发光物件。
该汽车发光物件在未开白光光源下，人眼目视该物件，可以看出具有良好的金属效果；白光光源打开的情况下，白光透过该物件，人眼目视汽车发光物件呈白光。LMK成像亮度计测试透过的光的色坐标及色温数据，表明透过汽车发光物件的光的色坐标在白光色坐标范围内，色温也在5200-7200K范围内。
对比例2
使用对比例1的复合膜层与白光光源结合，制备了汽车发光物件。
该汽车发光物件在未开白光光源下，人眼目视该物件，可以看出具有较好的金属效果；白光光源打开的情况下，白光透过该物件，人眼目视汽车发光物件呈黄光。LMK成像亮度计测试透过的光的色坐标及色温数据，透过汽车发光物件的光的色坐标不在白光色坐标范围内，色温也不在5200-7200K范围内。
最后应说明的是，本文中所描述的具体实施例仅仅是对本发明精神作举例说明，而并非对本发明的实施方式的限定。本发明 所属技术领域的技术人员可以对所描述的具有实施例做各种各样的修改或补充或采用类似的方式替代，这里无需也无法对所有的实施方式予以全例。而这些属于本发明的实质精神所引申出的显而易见的变化或变动仍属于本发明的保护范围，把它们解释成任何一种附加的限制都是与本发明精神相违背的。

Claims (15)

  1. 一种透白光复合膜层，其特征在于，所述透白光复合膜层包括介质层和镀铟层，其中介质层相对于镀铟层更靠近白光光源；
    所述介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明涂料；或者
    所述介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明塑料薄膜。
  2. 根据权利要求1所述的透白光复合膜层，其特征在于，所述蓝色颜料的CMYK值选自以下一种或多种：
    C35 M0 Y20 K0、C40 M0 Y10 K0、C60 M0 Y10 K0、C70 M10 Y0 K0、C45 M10 Y10 K0、C30 M0 Y10 K10、C40 M10 Y0 K20、C60 M15 Y0 K30、C75 M30 Y10 K15、C80 M10 Y20 K0、C95 M25 Y45 K0、C100 M50 Y45 K0、C100 M35 Y10 K0、C95 M60 Y0 K0、C100 M80 Y0 K0、C90 M70 Y0 K0；
    所述紫色颜料的CMYK值选自以下一种或多种：
    C55 M85 Y0 K0、C45 M70 Y50 K0、C60 M95 Y95 K20。
  3. 根据权利要求1所述的透白光复合膜层，其特征在于，蓝色颜料和紫色颜料的平均粒径为0.15～1.5μm。
  4. 根据权利要求1所述的透白光复合膜层，其特征在于，所述透白光复合膜层还包括透明面板，镀铟层位于透明面板的任意一侧。
  5. 根据权利要求1或4所述的透白光复合膜层，其特征在于，所述透白光复合膜层依次包括介质层、镀铟层、透明打底层和透明面板。
  6. 根据权利要求5所述的透白光复合膜层，其特征在于，介质层、镀铟层、透明打底层和透明面板的厚度分别为5-35μm、15～50nm、15～30μm和1～10mm。
  7. 根据权利要求1或4所述的透白光复合膜层，其特征在于，所述透白光复合膜层依次包括介质层、镀铟层和透明面板。
  8. 根据权利要求7所述的透白光复合膜层，其特征在于，介质层、镀铟层和透明面板的厚度分别为5-35μm、15～50nm和1～10mm。
  9. 根据权利要求1或4所述的透白光复合膜层，其特征在于，所述透白光复合膜层依次包括介质层、透明面板、透明打底层、镀铟层和透明涂料层。
  10. 根据权利要求7所述的透白光复合膜层，其特征在于，介质层、透明面板、透明打底层、镀铟层和透明涂料层的厚度分别为5-35μm、1～10mm、15～30μm、15～50nm和15～30μm。
  11. 根据权利要求1或4所述的透白光复合膜层，其特征在于，所述透白光复合膜层依次包括透明面板、介质层、镀铟层和透明涂料层。
  12. 根据权利要求11所述的透白光复合膜层，其特征在于，透明面板、介质层、镀铟层和透明涂料层的厚度分别为1～10mm、5-35μm、15～50nm和15～30μm。
  13. 根据权利要求1所述的透白光复合膜层，其特征在于，白光光源照射透白光复合膜层后，透过的光的色坐标位于由以下6个色坐标直线围成的范围内：
    A(0.310，0.348)、B(0.453，0.440)、C(0.500，0.440)、D(0.500，0.382)、E(0.443，0.382)、F(0.310、0.283)，
    且透过的光的色温值为5200～7200K。
  14. 一种如权利要求5所述的透白光复合膜层的制备方法，其特征在于，当介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明涂料，所述制备方法包括以下步骤：
    将透明塑料注塑形成透明面板；
    在透明面板一侧涂覆透明打底浆料，形成透明打底层；
    在透明打底层上通过物理气相沉积蒸发镀铟，形成镀铟层；
    在镀铟层上涂覆含0.5～8％蓝色颜料和0～2％紫色颜料的透明 涂料，形成介质层，即获得透白光复合膜层；
    当介质层为含0.5～8％蓝色颜料和0～2％紫色颜料的透明塑料薄膜，所述制备方法包括以下步骤：
    将透明塑料注塑形成透明面板；
    在透明面板一侧涂覆透明打底浆料，形成透明打底层；
    在透明打底层上通过物理气相沉积蒸发镀铟，形成镀铟层；
    在镀铟层上贴合含0.5～8％蓝色颜料和0～2％紫色颜料的透明塑料薄膜，形成介质层，即获得透白光复合膜层。
  15. 一种发光物件，其特征在于，包括白光光源、权利要求1所述的透白光复合膜层，透白光复合膜层中的介质层相对于镀铟层更靠近白光光源，白光光源发出的白光透过所述透白光复合膜层后，透过的光的色坐标位于由以下6个色坐标直线围成的范围内：
    A(0.310，0.348)、B(0.453，0.440)、C(0.500，0.440)、D(0.500，0.382)、E(0.443，0.382)、F(0.310、0.283)，
    且透过的光的色温值为5200～7200K。
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