WO2018090473A1 - External adhesive film of electronic product and preparation method thereof - Google Patents

External adhesive film of electronic product and preparation method thereof Download PDF

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Publication number
WO2018090473A1
WO2018090473A1 PCT/CN2017/000183 CN2017000183W WO2018090473A1 WO 2018090473 A1 WO2018090473 A1 WO 2018090473A1 CN 2017000183 W CN2017000183 W CN 2017000183W WO 2018090473 A1 WO2018090473 A1 WO 2018090473A1
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WIPO (PCT)
Prior art keywords
film
pet
adhesive layer
layer
thickness
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PCT/CN2017/000183
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French (fr)
Chinese (zh)
Inventor
王琴芬
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王琴芬
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Publication of WO2018090473A1 publication Critical patent/WO2018090473A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/10—Interconnection of layers at least one layer having inter-reactive properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/302—Conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/554—Wear resistance

Definitions

  • the invention relates to an external film of an electronic product and a preparation method thereof.
  • Graphite heat-conducting and heat-dissipating materials have become the material of choice for modern electronic products to solve heat-dissipating and heat-dissipating technology due to their unique low density (relative to metals) and high thermal conductivity and low thermal resistance.
  • the graphite heat sink can uniformly conduct heat in both horizontal and vertical directions, and the layered structure can better adapt to the surface of any product, and can effectively perform heat conduction and heat dissipation from horizontal and vertical directions.
  • the graphite heat sink is attached to the heat-generating portion of the consumer electronic product by means of a film to provide heat dissipation, but the existing film has poor tensile properties, and the appearance is usually transparent or white frosted. Aesthetics.
  • the technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an external film of an electronic product, which can not only improve its tensile strength and high temperature resistance, but also improve the aesthetics and improve its resistance. Flammability and improved thermal and thermal performance.
  • an external film of an electronic product which comprises:
  • the decorative film is disposed on the inner surface of the frosted film through the first adhesive layer;
  • the first PET transparent film is disposed on an inner surface of the graphite sheet layer through a third adhesive layer;
  • PET blue film the PET blue film is disposed on the inner surface of the first PET transparent film through the fourth adhesive layer;
  • the second PET transparent film is disposed on an inner surface of the silica gel layer
  • At least one of the first adhesive layer, the second adhesive layer, the third adhesive layer and the fourth adhesive layer is made of an acrylic pressure sensitive adhesive.
  • the frosted film is a transparent flash point frosted film.
  • the decorative film is provided with a color and/or a pattern.
  • the graphite sheet layer is a synthetic graphite sheet layer.
  • the thickness of the frosted film is 0.08 ⁇ 0.01 mm; and/or the thickness of the decorative film is 0.006 ⁇ 0.001 mm; and/or the thickness of the graphite sheet layer is 0.01-0.03 mm; and/or The thickness of the first PET transparent film is 0.004 ⁇ 0.001 mm; and/or the thickness of the second PET transparent film is 0.05 ⁇ 0.005 mm; and/or the thickness of the first adhesive layer is 0.02 ⁇ 0.005 mm; and/or The thickness of the second adhesive layer is 0.004 ⁇ 0.001 mm; and/or the thickness of the third adhesive layer is 0.004 ⁇ 0.001 mm; and/or the thickness of the fourth adhesive layer is 0.004 ⁇ 0.001 mm; and/or the PET blue film The thickness is 0.05 ⁇ 0.005 mm; and/or the thickness of the silica gel layer is 0.01 ⁇ 0.02 mm.
  • the graphite sheet layer has a smaller outer dimension than the frosted film, the decorative film, the first PET transparent film, the PET blue film, the silica gel layer, and the second PET.
  • the transparent film and the outer dimensions of the label are smaller outer dimensions than the frosted film, the decorative film, the first PET transparent film, the PET blue film, the silica gel layer, and the second PET. The transparent film and the outer dimensions of the label.
  • the label is a self-adhesive tear label.
  • the invention also provides a preparation method of an external film of an electronic product, the method comprising the following steps;
  • the graphite sheet layer is die-cut according to the size of the heat-generating area of the electronic product, and the waste edge is discharged;
  • step d combining the first semi-finished product which is compounded and wound in step b with the graphite sheet layer prepared in step c to form a second semi-finished product;
  • the inner surface of the second semi-finished material compounded in step d is further coated with a first PET transparent film having a third adhesive layer coated on the outer surface, and then the outer surface is further laminated on the inner surface of the first PET transparent film.
  • the PET blue film of the fourth adhesive layer has been coated, and the inner surface of the PET blue film is coated with a silica gel layer to form a third semi-finished product;
  • step e The third semi-finished product compounded in step e is further coated with a second PET transparent film on the inner surface of the silica gel layer to form a fourth semi-finished product;
  • the fourth semi-finished product prepared in step f is die-cut according to the outer dimensions of the electronic product to form a fifth semi-finished product;
  • the outer dimensions of the graphite sheet layer other than the thickness are ensured. Both are smaller than the outer dimensions of the frosted film, the decorative film, the first PET transparent film, the PET blue film, the silica gel layer, the second PET transparent film, and the label.
  • the invention improves the tensile resistance and high temperature resistance of the film by adding a multilayer PET transparent film; by adding the decorative film, the color and/or pattern can be printed on the decorative film to improve the appearance thereof.
  • the flame retardancy of the film can be improved, and the graphite sheet layer can increase the heat conduction and heat dissipation performance of the film.
  • Fig. 1 is a schematic view showing the structure of an outer film of an electronic product of the present invention.
  • an external film of an electronic product which includes;
  • the decorative film 3 is disposed on the inner surface of the frosted film 1 through the first adhesive layer 2;
  • the graphite sheet layer 5 is disposed on the inner surface of the decorative film 3 through the second adhesive layer 4;
  • the first PET transparent film 7 is disposed on the inner surface of the graphite sheet layer 5 through the third adhesive layer 6;
  • PET blue film 9 the PET blue film 9 is disposed on the inner surface of the first PET transparent film 7 through the fourth adhesive layer 8;
  • a silica gel layer 10 disposed on an inner surface of the PET blue film 9;
  • a label 12 is disposed on an inner surface of the second PET transparent film 11.
  • At least one of the first adhesive layer 2, the second adhesive layer 4, the third adhesive layer 6, and the fourth adhesive layer 8 is made of an acrylic pressure sensitive adhesive.
  • each adhesive layer is made of acrylic pressure sensitive adhesive, and the acrylic pressure sensitive adhesive has good low temperature resistance, high temperature resistance, low volatility volatile matter and mass loss rate, and no harmful gas escape. .
  • the frosted film 1 is a transparent flash point frosted film, and the frosted film 1 is made of a PVC material, mainly for protecting the outer casing of the electronic product to be attached and the abrasion resistance of the reinforcing film itself.
  • the decorative film 3 is provided with a color and/or a pattern, and various colors and/or patterns can be printed on the decorative film 3 to improve the aesthetic performance of the outer film and increase the stretch resistance and temperature resistance of the outer film.
  • the graphite sheet layer 5 is a synthetic graphite sheet layer.
  • the graphite sheet layer 5 mainly utilizes the high thermal conductivity of the artificial graphite sheet to increase the thermal conductivity of the outer film, so that the electronic product can dissipate heat more quickly.
  • Graphite sheet 5 is made of synthetic graphite. Synthetic graphite is a heat-conducting heat-dissipating material due to its unique low density (relative to metals) and high thermal conductivity. The thermal coefficient and low thermal resistance have become the materials of choice for modern electronic products to solve the problem of heat conduction and heat dissipation.
  • the graphite heat sink can uniformly conduct heat in both horizontal and vertical directions, and the layered structure can better adapt to the surface of any product, and can effectively perform heat conduction and heat dissipation from horizontal and vertical directions.
  • the thickness of the frosted film 1 is 0.08 ⁇ 0.01 mm; and/or the thickness of the decorative film 3 is 0.006 ⁇ 0.001 mm; and/or the thickness of the graphite sheet 5 is 0.01-0.03 mm; and/or The thickness of the first PET transparent film 7 is 0.004 ⁇ 0.001 mm; and/or the thickness of the second PET transparent film 11 is 0.05 ⁇ 0.005 mm; and/or the thickness of the first adhesive layer 2 is 0.02 ⁇ 0.005 mm; And/or the thickness of the second adhesive layer 4 is 0.004 ⁇ 0.001 mm; and/or the thickness of the third adhesive layer 6 is 0.004 ⁇ 0.001 mm; and/or the thickness of the fourth adhesive layer 8 is 0.004 ⁇ 0.001 mm; Or the thickness of the PET blue film 9 is 0.05 ⁇ 0.005 mm; and/or the thickness of the silica gel layer 10 is 0.01 ⁇ 0.02 mm.
  • the first PET transparent film 7 mainly increases the tensile resistance of the third adhesive layer 6 and the fourth adhesive layer 8; the PET blue film 9 utilizes the high temperature resistance of PET to increase the flame retardancy of the film and protect it.
  • the role of the graphite sheet layer 5; the silica gel layer 10 is mainly a bonded outer film and an attached electronic product, and is convenient for the user to peel off during the use of the user, leaving no residual glue; the second PET transparent film 11 is a protective layer of the silicone layer 10.
  • the secondary layer of the silica gel layer 10 is prevented from being contaminated during use. After the silica gel layer 10 is used, the present invention can be used twice, and can be repeatedly pasted. Different thicknesses of adhesive layers can be used to reduce the thickness of the film.
  • the outer dimensions of the graphite sheet layer 5 except for the thickness are smaller than the frosted film 1, the decorative film 3, the first PET transparent film 7, the PET blue film 9, the silicone layer 10, and the The outer dimensions of the second PET transparent film 11 and the label 12 are described.
  • the label 12 is a self-adhesive hand-tear label.
  • the self-adhesive hand-tear label facilitates the user to peel off the second PET transparent film 11 when the user uses it.
  • the decorative film 3, the first PET transparent film 7, the PET blue film 9 and the second PET transparent film 11 are all made of a PET material, which is also known as a high temperature resistant polyester film. It has excellent physical properties, chemical properties and dimensional stability, transparency and recyclability. It can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial film, packaging decoration, screen protection, optical grade mirror Surface protection and other fields.
  • the preparation method of the external film of the electronic product includes the following steps:
  • the decorative film 3 is printed in a color and/or pattern according to the product requirements and is wound up;
  • the frosted film 1 coated with the inner surface of the first adhesive layer 2 and the decorative film 3 coated with the inner surface of the second adhesive layer 4 are composited and wound up by a multi-station composite waste discharge machine to form a first semi-finished product. ;
  • the graphite sheet layer 5 is die-cut according to the size of the heat-generating area of the electronic product, and the waste edge is discharged;
  • the first semi-finished product which is compounded and wound in step b is compounded with the graphite sheet layer 5 prepared in step c by a multi-station composite waste discharge machine to form a second semi-finished product;
  • the inner surface of the second semi-finished material compounded in step d is further coated with the third surface.
  • the first PET transparent film 7 of the layer 6 is then overlaid on the inner surface of the first PET transparent film 7 with the outer surface of the PET blue film 9 on which the outer surface has been coated with the fourth adhesive layer 8, the inner surface of the PET blue film 9. Recoating the silica gel layer 10 to form a third semi-finished product;
  • the third semi-finished product which is compounded in step e is further coated with the second PET transparent film 11 on the inner surface of the silica gel layer 10 by a multi-station composite waste discharge machine to form a fourth semi-finished product;
  • the fourth semi-finished product prepared in step f is die-cut according to the outer dimensions of the electronic product to form a fifth semi-finished product;
  • the step g in the die-cut molding, it is ensured that the outer dimensions of the graphite sheet layer 5 except the thickness are smaller than the frosted film 1, the decorative film 3, the first PET transparent film 7, The outer dimensions of the PET blue film 9, the silicone layer 10, the second PET transparent film 11, and the label 12.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

An external adhesive film of an electronic product and a preparation method thereof. The external adhesive film of an electronic product comprises: a matte film (1); a decorative film (3) provided on an inner surface of the matte film (1) via a first adhesive layer (2); a graphite sheet layer (5) provided on an inner surface of the decorative film (3) via a second adhesive layer (4); a first PET transparent film (7) provided on an inner surface of the graphite sheet layer (5) via a third adhesive layer (6); a PET blue thin film (9) provided on an inner surface of the first PET transparent film (7) via a fourth adhesive layer (8); a silica gel layer (10) provided on an inner surface of the PET blue thin film (9); a second PET transparent film (11) provided on an inner surface of the silica gel film (10); and a label (12) provided on an inner surface of the second PET transparent film (11). The external adhesive has improved anti-stretching and high temperature resistance performances, is visually more appealing, and also has improved flame retardance, heat conductivity and heat dissipation performances.

Description

电子产品的外贴膜及其制备方法External film of electronic product and preparation method thereof 技术领域Technical field
本发明涉及一种电子产品的外贴膜及其制备方法。The invention relates to an external film of an electronic product and a preparation method thereof.
背景技术Background technique
目前，随着电子技术的不断发展，电子产品不断更新换代，其工作组件的尺寸越来越小，工作的速度和效率越来越高，其发热量也越来越大。因此不仅要求其配备相应的散热装置，还要确保散热装置具有更强的散热能力，以保证产品性能的可靠性和延长其使用寿命有效散热对于电子产品的稳定运行和长期可靠性而言至关重要。At present, with the continuous development of electronic technology, electronic products are constantly being updated, the size of their working components is getting smaller and smaller, the speed and efficiency of work are getting higher and higher, and the heat generation is also getting larger and larger. Therefore, it is not only required to be equipped with a corresponding heat sink, but also to ensure that the heat sink has a higher heat dissipation capability, so as to ensure the reliability of the product performance and prolong its service life. The heat dissipation is crucial for the stable operation and long-term reliability of the electronic product. important.
石墨导热散热材料，因其特有的低密度(相对于金属类)和高导热散热系数及低热阻成为现代电子类产品解决导热散热技术的首选材料。石墨散热片可以沿水平、垂直两个方向均匀地导热，片层状结构可更好地适应任何产品的表面，可以从水平、垂直方向有效的起到导热散热的作用。Graphite heat-conducting and heat-dissipating materials have become the material of choice for modern electronic products to solve heat-dissipating and heat-dissipating technology due to their unique low density (relative to metals) and high thermal conductivity and low thermal resistance. The graphite heat sink can uniformly conduct heat in both horizontal and vertical directions, and the layered structure can better adapt to the surface of any product, and can effectively perform heat conduction and heat dissipation from horizontal and vertical directions.
因此现有技术通过贴膜的方式将石墨散热片粘贴在消费类电子产品的发热部分，起到散热作用，但是现有的贴膜抗拉性能差，而且外观视觉上通常为透明或白色磨砂类，影响美观度。Therefore, in the prior art, the graphite heat sink is attached to the heat-generating portion of the consumer electronic product by means of a film to provide heat dissipation, but the existing film has poor tensile properties, and the appearance is usually transparent or white frosted. Aesthetics.
发明内容Summary of the invention
本发明所要解决的技术问题是克服现有技术的缺陷，提供一种电子产品的外贴膜，它不仅可以提高其抗拉伸性能和耐高温性能，而且提高了美观度，并且可以提高其抗阻燃性和提高其导热散热性能。The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an external film of an electronic product, which can not only improve its tensile strength and high temperature resistance, but also improve the aesthetics and improve its resistance. Flammability and improved thermal and thermal performance.
为了解决上述技术问题，本发明的技术方案是：一种电子产品的外贴膜，它包括：In order to solve the above technical problem, the technical solution of the present invention is: an external film of an electronic product, which comprises:
磨砂膜；Matte film
装饰膜，所述装饰膜通过第一黏合层设置在磨砂膜的内表面上；a decorative film, the decorative film is disposed on the inner surface of the frosted film through the first adhesive layer;
石墨片层，所述石墨片层通过第二黏合层设置在装饰膜的内表面上；a graphite sheet layer, the graphite sheet layer being disposed on the inner surface of the decorative film through the second adhesive layer;
第一PET透明膜，所述第一PET透明膜通过第三黏合层设置在石墨片层的内表面上；a first PET transparent film, the first PET transparent film is disposed on an inner surface of the graphite sheet layer through a third adhesive layer;
PET蓝色薄膜，所述PET蓝色薄膜通过第四黏合层设置在第一PET透明膜的内表面上；PET blue film, the PET blue film is disposed on the inner surface of the first PET transparent film through the fourth adhesive layer;
硅胶层，所述硅胶层设置在PET蓝色薄膜的内表面上；a silica gel layer disposed on an inner surface of the PET blue film;
第二PET透明膜，所述第二PET透明膜设置在硅胶层的内表面上； a second PET transparent film, the second PET transparent film is disposed on an inner surface of the silica gel layer;
标签，所述标签设置在第二PET透明膜的内表面上。A label disposed on an inner surface of the second PET transparent film.
进一步，所述第一黏合层、第二黏合层、第三黏合层和第四黏合层中的至少一个由丙烯酸压敏胶制成。Further, at least one of the first adhesive layer, the second adhesive layer, the third adhesive layer and the fourth adhesive layer is made of an acrylic pressure sensitive adhesive.
进一步，所述磨砂膜为透明闪点磨砂膜。Further, the frosted film is a transparent flash point frosted film.
进一步，所述装饰膜上设置有颜色和/或图案。Further, the decorative film is provided with a color and/or a pattern.
进一步，所述石墨片层为人工合成石墨片层。Further, the graphite sheet layer is a synthetic graphite sheet layer.
进一步，所述磨砂膜的厚度为0.08±0.01mm；和/或所述装饰膜的厚度为0.006±0.001mm；和/或所述石墨片层的厚度为0.01-0.03mm；和/或所述第一PET透明膜的厚度为0.004±0.001mm；和/或第二PET透明膜的厚度为0.05±0.005mm；和/或所述第一黏合层的厚度为0.02±0.005mm；和/或第二黏合层的厚度为0.004±0.001mm；和/或第三黏合层的厚度为0.004±0.001mm；和/或第四黏合层的厚度为0.004±0.001mm；和/或所述PET蓝色薄膜的厚度为0.05±0.005mm；和/或所述硅胶层的厚度为0.01±0.02mm。Further, the thickness of the frosted film is 0.08±0.01 mm; and/or the thickness of the decorative film is 0.006±0.001 mm; and/or the thickness of the graphite sheet layer is 0.01-0.03 mm; and/or The thickness of the first PET transparent film is 0.004±0.001 mm; and/or the thickness of the second PET transparent film is 0.05±0.005 mm; and/or the thickness of the first adhesive layer is 0.02±0.005 mm; and/or The thickness of the second adhesive layer is 0.004±0.001 mm; and/or the thickness of the third adhesive layer is 0.004±0.001 mm; and/or the thickness of the fourth adhesive layer is 0.004±0.001 mm; and/or the PET blue film The thickness is 0.05 ± 0.005 mm; and/or the thickness of the silica gel layer is 0.01 ± 0.02 mm.
进一步，所述石墨片层除厚度外的外形尺寸均小于所述磨砂膜、所述装饰膜、所述第一PET透明膜、所述PET蓝色薄膜、所述硅胶层、所述第二PET透明膜和所述标签的外形尺寸。Further, the graphite sheet layer has a smaller outer dimension than the frosted film, the decorative film, the first PET transparent film, the PET blue film, the silica gel layer, and the second PET. The transparent film and the outer dimensions of the label.
进一步，所述标签为不干胶手撕标签。Further, the label is a self-adhesive tear label.
本发明还提供了一种电子产品的外贴膜的制备方法，所述方法中含有如下步骤；The invention also provides a preparation method of an external film of an electronic product, the method comprising the following steps;
a、将装饰膜按产品要求印刷好颜色和/或图案并收卷；a. Print the decorative film according to the product requirements and color and / or pattern;
b、将内表面涂布好第一黏合层的磨砂膜与内表面涂布好第二黏合层的装饰膜复合好并收卷，形成第一半成品；b. The frosted film coated with the inner surface of the first adhesive layer and the decorative film coated with the second adhesive layer on the inner surface are combined and wound up to form the first semi-finished product;
c、将石墨片层按电子产品的发热区域设计的尺寸模切成型，并排去废边；c. The graphite sheet layer is die-cut according to the size of the heat-generating area of the electronic product, and the waste edge is discharged;
d、将步骤b中复合好并收卷的第一半成品与步骤c中制备好的石墨片层复合，形成第二半成品；d, combining the first semi-finished product which is compounded and wound in step b with the graphite sheet layer prepared in step c to form a second semi-finished product;
e、在步骤d复合好的第二半成品材料的内表面再复上外表面已经涂布好第三黏合层的第一PET透明膜，然后在第一PET透明膜的内表面再复上外表面已经涂布好第四黏合层的PET蓝色薄膜，PET蓝色薄膜的内表面再涂布硅胶层，形成第三半成品；e. The inner surface of the second semi-finished material compounded in step d is further coated with a first PET transparent film having a third adhesive layer coated on the outer surface, and then the outer surface is further laminated on the inner surface of the first PET transparent film. The PET blue film of the fourth adhesive layer has been coated, and the inner surface of the PET blue film is coated with a silica gel layer to form a third semi-finished product;
f、将步骤e复合好的第三半成品在硅胶层的内表面上再复上第二PET透明膜，形成第四半成品；f. The third semi-finished product compounded in step e is further coated with a second PET transparent film on the inner surface of the silica gel layer to form a fourth semi-finished product;
g、将步骤f制备好的第四半成品按电子产品的外形尺寸进行模切成型，形成第五半成品；g, the fourth semi-finished product prepared in step f is die-cut according to the outer dimensions of the electronic product to form a fifth semi-finished product;
h、将已经模切成型的第五半成品贴上标签，即制得成品。h. Label the fifth semi-finished product that has been die-cut, that is, obtain the finished product.
进一步，在所述的步骤g中，模切成型时，确保所述石墨片层除厚度外的外形尺寸 均小于所述磨砂膜、所述装饰膜、所述第一PET透明膜、所述PET蓝色薄膜、所述硅胶层、所述第二PET透明膜和所述标签的外形尺寸。Further, in the step g, in the die-cut molding, the outer dimensions of the graphite sheet layer other than the thickness are ensured. Both are smaller than the outer dimensions of the frosted film, the decorative film, the first PET transparent film, the PET blue film, the silica gel layer, the second PET transparent film, and the label.
采用了上述技术方案后，本发明通过增加多层PET透明膜来提高贴膜的抗拉伸性能和耐高温性能；通过增加装饰膜，可以在装饰膜上印刷颜色和/或图案，提高了其美观度，通过增加PET蓝色薄膜，可以提高贴膜的抗阻燃性，石墨片层可以增加贴膜的导热和散热性能。After adopting the above technical solution, the invention improves the tensile resistance and high temperature resistance of the film by adding a multilayer PET transparent film; by adding the decorative film, the color and/or pattern can be printed on the decorative film to improve the appearance thereof. By increasing the PET blue film, the flame retardancy of the film can be improved, and the graphite sheet layer can increase the heat conduction and heat dissipation performance of the film.
附图说明DRAWINGS
图1为本发明的电子产品的外贴膜的结构示意图。Fig. 1 is a schematic view showing the structure of an outer film of an electronic product of the present invention.
具体实施方式detailed description
为了使本发明的内容更容易被清楚地理解，下面根据具体实施例并结合附图，对本发明作进一步详细的说明。In order to make the content of the present invention easier to understand, the present invention will be further described in detail below with reference to the accompanying drawings.
如图1所示，一种电子产品的外贴膜，它包括；As shown in Figure 1, an external film of an electronic product, which includes;
磨砂膜1；Frosted film 1;
装饰膜3，所述装饰膜3通过第一黏合层2设置在磨砂膜1的内表面上；a decorative film 3, the decorative film 3 is disposed on the inner surface of the frosted film 1 through the first adhesive layer 2;
石墨片层5，所述石墨片层5通过第二黏合层4设置在装饰膜3的内表面上；a graphite sheet layer 5, the graphite sheet layer 5 is disposed on the inner surface of the decorative film 3 through the second adhesive layer 4;
第一PET透明膜7，所述第一PET透明膜7通过第三黏合层6设置在石墨片层5的内表面上；a first PET transparent film 7, the first PET transparent film 7 is disposed on the inner surface of the graphite sheet layer 5 through the third adhesive layer 6;
PET蓝色薄膜9，所述PET蓝色薄膜9通过第四黏合层8设置在第一PET透明膜7的内表面上；PET blue film 9, the PET blue film 9 is disposed on the inner surface of the first PET transparent film 7 through the fourth adhesive layer 8;
硅胶层10，所述硅胶层10设置在PET蓝色薄膜9的内表面上；a silica gel layer 10 disposed on an inner surface of the PET blue film 9;
第二PET透明膜11，所述第二PET透明膜11设置在硅胶层10的内表面上；a second PET transparent film 11 disposed on an inner surface of the silica gel layer 10;
标签12，所述标签12设置在第二PET透明膜11的内表面上。A label 12 is disposed on an inner surface of the second PET transparent film 11.
所述第一黏合层2、第二黏合层4、第三黏合层6和第四黏合层8中的至少一个由丙烯酸压敏胶制成。在本实施例中，各黏合层均由丙烯酸压敏胶制成，丙烯酸压敏胶具有较好的耐低温、耐高温，可凝挥发物和质量损失率低，并且无有害气体逸出的特性。At least one of the first adhesive layer 2, the second adhesive layer 4, the third adhesive layer 6, and the fourth adhesive layer 8 is made of an acrylic pressure sensitive adhesive. In this embodiment, each adhesive layer is made of acrylic pressure sensitive adhesive, and the acrylic pressure sensitive adhesive has good low temperature resistance, high temperature resistance, low volatility volatile matter and mass loss rate, and no harmful gas escape. .
所述磨砂膜1为透明闪点磨砂膜，所述磨砂膜1由PVC材料制成，主要是保护被贴电子产品的外壳和增强贴膜本身的耐磨性。The frosted film 1 is a transparent flash point frosted film, and the frosted film 1 is made of a PVC material, mainly for protecting the outer casing of the electronic product to be attached and the abrasion resistance of the reinforcing film itself.
所述装饰膜3上设置有颜色和/或图案，装饰膜3上可以印刷各种颜色和/或图案，提高外贴膜的美观性能，并且增加外贴膜的抗拉伸性和耐温性。The decorative film 3 is provided with a color and/or a pattern, and various colors and/or patterns can be printed on the decorative film 3 to improve the aesthetic performance of the outer film and increase the stretch resistance and temperature resistance of the outer film.
所述石墨片层5为人工合成石墨片层。所述石墨片层5主要是利用人工石墨片的高导热性能，增加外贴膜的导热性，使电子产品散热更快。石墨片层5采用人工合成石墨制成，人工合成石墨是导热散热材料，因其特有的低密度(相对于金属类)和高导热散 热系数及低热阻成为现代电子类产品解决导热散热技术的首选材料。石墨散热片可以沿水平、垂直两个方向均匀地导热，片层状结构可更好地适应任何产品的表面，可以从水平、垂直方向有效的起到导热散热的作用。The graphite sheet layer 5 is a synthetic graphite sheet layer. The graphite sheet layer 5 mainly utilizes the high thermal conductivity of the artificial graphite sheet to increase the thermal conductivity of the outer film, so that the electronic product can dissipate heat more quickly. Graphite sheet 5 is made of synthetic graphite. Synthetic graphite is a heat-conducting heat-dissipating material due to its unique low density (relative to metals) and high thermal conductivity. The thermal coefficient and low thermal resistance have become the materials of choice for modern electronic products to solve the problem of heat conduction and heat dissipation. The graphite heat sink can uniformly conduct heat in both horizontal and vertical directions, and the layered structure can better adapt to the surface of any product, and can effectively perform heat conduction and heat dissipation from horizontal and vertical directions.
所述磨砂膜1的厚度为0.08±0.01mm；和/或所述装饰膜3的厚度为0.006±0.001mm；和/或所述石墨片层5的厚度为0.01-0.03mm；和/或所述第一PET透明膜7的厚度为0.004±0.001mm；和/或第二PET透明膜11的厚度为0.05±0.005mm；和/或所述第一黏合层2的厚度为0.02±0.005mm；和/或第二黏合层4的厚度为0.004±0.001mm；和/或第三黏合层6的厚度为0.004±0.001mm；和/或第四黏合层8的厚度为0.004±0.001mm；和/或所述PET蓝色薄膜9的厚度为0.05±0.005mm；和/或所述硅胶层10的厚度为0.01±0.02mm。第一PET透明膜7主要是增加第三黏合层6和第四黏合层8的抗拉伸性；PET蓝色薄膜9利用PET耐高温的特性，增加贴膜的抗阻燃性，并且起到保护石墨片层5的作用；硅胶层10主要是黏结外贴膜和被贴的电子产品，且在用户使用过程中方便用户剥离，不留残胶；第二PET透明膜11是硅胶层10的保护层，防止硅胶层10在使用过程中二次污染，采用硅胶层10以后可以使本发明二次利用，可以反复粘贴。视不同的材质采用不同厚度的黏合层，可以有效降低贴膜的厚度。The thickness of the frosted film 1 is 0.08±0.01 mm; and/or the thickness of the decorative film 3 is 0.006±0.001 mm; and/or the thickness of the graphite sheet 5 is 0.01-0.03 mm; and/or The thickness of the first PET transparent film 7 is 0.004±0.001 mm; and/or the thickness of the second PET transparent film 11 is 0.05±0.005 mm; and/or the thickness of the first adhesive layer 2 is 0.02±0.005 mm; And/or the thickness of the second adhesive layer 4 is 0.004±0.001 mm; and/or the thickness of the third adhesive layer 6 is 0.004±0.001 mm; and/or the thickness of the fourth adhesive layer 8 is 0.004±0.001 mm; Or the thickness of the PET blue film 9 is 0.05 ± 0.005 mm; and/or the thickness of the silica gel layer 10 is 0.01 ± 0.02 mm. The first PET transparent film 7 mainly increases the tensile resistance of the third adhesive layer 6 and the fourth adhesive layer 8; the PET blue film 9 utilizes the high temperature resistance of PET to increase the flame retardancy of the film and protect it. The role of the graphite sheet layer 5; the silica gel layer 10 is mainly a bonded outer film and an attached electronic product, and is convenient for the user to peel off during the use of the user, leaving no residual glue; the second PET transparent film 11 is a protective layer of the silicone layer 10. The secondary layer of the silica gel layer 10 is prevented from being contaminated during use. After the silica gel layer 10 is used, the present invention can be used twice, and can be repeatedly pasted. Different thicknesses of adhesive layers can be used to reduce the thickness of the film.
所述石墨片层5除厚度外的外形尺寸均小于所述磨砂膜1、所述装饰膜3、所述第一PET透明膜7、所述PET蓝色薄膜9、所述硅胶层10、所述第二PET透明膜11和所述标签12的外形尺寸。The outer dimensions of the graphite sheet layer 5 except for the thickness are smaller than the frosted film 1, the decorative film 3, the first PET transparent film 7, the PET blue film 9, the silicone layer 10, and the The outer dimensions of the second PET transparent film 11 and the label 12 are described.
所述标签12为不干胶手撕标签。不干胶手撕标签在用户使用时方便用户剥离第二PET透明膜11。The label 12 is a self-adhesive hand-tear label. The self-adhesive hand-tear label facilitates the user to peel off the second PET transparent film 11 when the user uses it.
另外，装饰膜3、第一PET透明膜7、PET蓝色薄膜9和第二PET透明膜11均采用PET材料制成，PET膜又名耐高温聚酯薄膜。它具有优异的物理性能、化学性能及尺寸稳定性、透明性、可回收性，可广泛的应用于磁记录、感光材料、电子、电气绝缘、工业用膜、包装装饰、屏幕保护、光学级镜面表面保护等领域。In addition, the decorative film 3, the first PET transparent film 7, the PET blue film 9 and the second PET transparent film 11 are all made of a PET material, which is also known as a high temperature resistant polyester film. It has excellent physical properties, chemical properties and dimensional stability, transparency and recyclability. It can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial film, packaging decoration, screen protection, optical grade mirror Surface protection and other fields.
本电子产品的外贴膜的制备方法中含有如下步骤：The preparation method of the external film of the electronic product includes the following steps:
a、将装饰膜3按产品要求印刷好颜色和/或图案并收卷；a. The decorative film 3 is printed in a color and/or pattern according to the product requirements and is wound up;
b、将内表面涂布好第一黏合层2的磨砂膜1与内表面涂布好第二黏合层4的装饰膜3通过多工位复合排废机复合好并收卷，形成第一半成品；b. The frosted film 1 coated with the inner surface of the first adhesive layer 2 and the decorative film 3 coated with the inner surface of the second adhesive layer 4 are composited and wound up by a multi-station composite waste discharge machine to form a first semi-finished product. ;
c、将石墨片层5按电子产品的发热区域设计的尺寸模切成型，并排去废边；c. The graphite sheet layer 5 is die-cut according to the size of the heat-generating area of the electronic product, and the waste edge is discharged;
d、将步骤b中复合好并收卷的第一半成品用多工位复合排废机与步骤c中制备好的石墨片层5复合，形成第二半成品；d. The first semi-finished product which is compounded and wound in step b is compounded with the graphite sheet layer 5 prepared in step c by a multi-station composite waste discharge machine to form a second semi-finished product;
e、在步骤d复合好的第二半成品材料的内表面再复上外表面已经涂布好第三黏合 层6的第一PET透明膜7，然后在第一PET透明膜7的内表面再复上外表面已经涂布好第四黏合层8的PET蓝色薄膜9，PET蓝色薄膜9的内表面再涂布硅胶层10，形成第三半成品；e. The inner surface of the second semi-finished material compounded in step d is further coated with the third surface. The first PET transparent film 7 of the layer 6 is then overlaid on the inner surface of the first PET transparent film 7 with the outer surface of the PET blue film 9 on which the outer surface has been coated with the fourth adhesive layer 8, the inner surface of the PET blue film 9. Recoating the silica gel layer 10 to form a third semi-finished product;
f、将步骤e复合好的第三半成品用多工位复合排废机在硅胶层10的内表面上再复上第二PET透明膜11，形成第四半成品；f. The third semi-finished product which is compounded in step e is further coated with the second PET transparent film 11 on the inner surface of the silica gel layer 10 by a multi-station composite waste discharge machine to form a fourth semi-finished product;
g、将步骤f制备好的第四半成品按电子产品的外形尺寸进行模切成型，形成第五半成品；g, the fourth semi-finished product prepared in step f is die-cut according to the outer dimensions of the electronic product to form a fifth semi-finished product;
h、将已经模切成型的第五半成品贴上标签，即制得成品。h. Label the fifth semi-finished product that has been die-cut, that is, obtain the finished product.
在所述的步骤g中，模切成型时，确保所述石墨片层5除厚度外的外形尺寸均小于所述磨砂膜1、所述装饰膜3、所述第一PET透明膜7、所述PET蓝色薄膜9、所述硅胶层10、所述第二PET透明膜11和所述标签12的外形尺寸。In the step g, in the die-cut molding, it is ensured that the outer dimensions of the graphite sheet layer 5 except the thickness are smaller than the frosted film 1, the decorative film 3, the first PET transparent film 7, The outer dimensions of the PET blue film 9, the silicone layer 10, the second PET transparent film 11, and the label 12.
以上所述的具体实施例，对本发明解决的技术问题、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施例而已，并不用于限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The specific embodiments described above further explain the technical problems, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only specific embodiments of the present invention and is not intended to limit the present invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (10)

  1. 一种电子产品的外贴膜，其特征在于，它包括：An external film of an electronic product, characterized in that it comprises:
    磨砂膜(1)；Matte film (1);
    装饰膜(3)，所述装饰膜(3)通过第一黏合层(2)设置在磨砂膜(1)的内表面上；a decorative film (3), the decorative film (3) is disposed on the inner surface of the frosted film (1) through the first adhesive layer (2);
    石墨片层(5)，所述石墨片层(5)通过第二黏合层(4)设置在装饰膜(3)的内表面上；a graphite sheet layer (5), the graphite sheet layer (5) is disposed on the inner surface of the decorative film (3) through the second adhesive layer (4);
    第一PET透明膜(7)，所述第一PET透明膜(7)通过第三黏合层(6)设置在石墨片层(5)的内表面上；a first PET transparent film (7), the first PET transparent film (7) is disposed on an inner surface of the graphite sheet layer (5) through a third adhesive layer (6);
    PET蓝色薄膜(9)，所述PET蓝色薄膜(9)通过第四黏合层(8)设置在第一PET透明膜(7)的内表面上；PET blue film (9), the PET blue film (9) is disposed on the inner surface of the first PET transparent film (7) through the fourth adhesive layer (8);
    硅胶层(10)，所述硅胶层(10)设置在PET蓝色薄膜(9)的内表面上；a silica gel layer (10), the silica gel layer (10) being disposed on an inner surface of the PET blue film (9);
    第二PET透明膜(11)，所述第二PET透明膜(11)设置在硅胶层(10)的内表面上；a second PET transparent film (11), the second PET transparent film (11) is disposed on an inner surface of the silica gel layer (10);
    标签(12)，所述标签(12)设置在第二PET透明膜(11)的内表面上。A label (12) disposed on an inner surface of the second PET transparent film (11).
  2. 根据权利要求1所述的电子产品的外贴膜，其特征在于：所述第一黏合层(2)、第二黏合层(4)、第三黏合层(6)和第四黏合层(8)中的至少一个由丙烯酸压敏胶制成。The external film of the electronic product according to claim 1, wherein the first adhesive layer (2), the second adhesive layer (4), the third adhesive layer (6) and the fourth adhesive layer (8) At least one of them is made of an acrylic pressure sensitive adhesive.
  3. 根据权利要求1所述的电子产品的外贴膜，其特征在于：所述磨砂膜(1)为透明闪点磨砂膜。The external film of an electronic product according to claim 1, wherein the frosted film (1) is a transparent flash point frosted film.
  4. 根据权利要求1所述的电子产品的外贴膜，其特征在于：所述装饰膜(3)上设置有颜色和/或图案。The outer film of an electronic product according to claim 1, characterized in that the decorative film (3) is provided with a color and/or a pattern.
  5. 根据权利要求1所述的电子产品的外贴膜，其特征在于：所述石墨片层(5)为人工合成石墨片层。The outer film of an electronic product according to claim 1, wherein the graphite sheet layer (5) is a synthetic graphite sheet layer.
  6. 根据权利要求1所述的电子产品的外贴膜，其特征在于：所述磨砂膜(1)的厚度为0.08±0.01mm；和/或所述装饰膜(3)的厚度为0.006±0.001mm；和/或所述石墨片层(5)的厚度为0.01-0.03mm；和/或所述第一PET透明膜(7)的厚度为0.004±0.001mm；和/或第二PET透明膜(11)的厚度为0.05±0.005mm；和/或所述第一黏合层(2)的厚度为0.02±0.005mm；和/或第二黏合层(4)的厚度为0.004±0.001mm；和/或第三黏合层(6)的厚度为0.004±0.001mm；和/或第四黏合层(8)的厚度为0.004±0.001mm；和/或所述PET蓝色薄膜(9)的厚度为0.05±0.005mm；和/或所述硅胶层 (10)的厚度为0.01±0.02mm。The outer film of the electronic product according to claim 1, wherein the frosted film (1) has a thickness of 0.08 ± 0.01 mm; and / or the decorative film (3) has a thickness of 0.006 ± 0.001 mm; And/or the graphite sheet layer (5) has a thickness of 0.01 to 0.03 mm; and/or the first PET transparent film (7) has a thickness of 0.004 ± 0.001 mm; and/or a second PET transparent film (11) a thickness of 0.05 ± 0.005 mm; and/or a thickness of the first adhesive layer (2) of 0.02 ± 0.005 mm; and / or a thickness of the second adhesive layer (4) of 0.004 ± 0.001 mm; and / or The thickness of the third adhesive layer (6) is 0.004±0.001 mm; and/or the thickness of the fourth adhesive layer (8) is 0.004±0.001 mm; and/or the thickness of the PET blue film (9) is 0.05± 0.005 mm; and/or the silica gel layer The thickness of (10) is 0.01 ± 0.02 mm.
  7. 根据权利要求1所述的电子产品的外贴膜，其特征在于：所述石墨片层(5)除厚度外的外形尺寸均小于所述磨砂膜(1)、所述装饰膜(3)、所述第一PET透明膜(7)、所述PET蓝色薄膜(9)、所述硅胶层(10)、所述第二PET透明膜(11)和所述标签(12)的外形尺寸。The external film of the electronic product according to claim 1, wherein the graphite sheet layer (5) has an outer dimension smaller than the thickness of the frosted film (1), the decorative film (3), and the The outer dimensions of the first PET transparent film (7), the PET blue film (9), the silicone layer (10), the second PET transparent film (11), and the label (12) are described.
  8. 根据权利要求1所述的电子产品的外贴膜，其特征在于：所述标签(12)为不干胶手撕标签。The external film of an electronic product according to claim 1, wherein the label (12) is a self-adhesive hand-tear label.
  9. 一种如权利要求1至8中任一项所述的电子产品的外贴膜的制备方法，其特征在于：所述方法中含有如下步骤：A method for preparing an outer film of an electronic product according to any one of claims 1 to 8, wherein the method comprises the following steps:
    a、将装饰膜(3)按产品要求印刷好颜色和/或图案并收卷；a, the decorative film (3) according to product requirements printed color and / or pattern and winding;
    b、将内表面涂布好第一黏合层(2)的磨砂膜(1)与内表面涂布好第二黏合层(4)的装饰膜(3)复合好并收卷，形成第一半成品；b. The matte film (1) coated with the inner surface of the first adhesive layer (2) and the decorative film (3) coated with the inner surface of the second adhesive layer (4) are combined and wound to form the first semi-finished product. ;
    c、将石墨片层(5)按电子产品的发热区域设计的尺寸模切成型，并排去废边；c. The graphite sheet layer (5) is die-cut according to the size of the heat-generating area of the electronic product, and the waste edge is discharged;
    d、将步骤b中复合好并收卷的第一半成品与步骤c中制备好的石墨片层(5)复合，形成第二半成品；d, combining the first semi-finished product which is compounded and wound in step b with the graphite sheet layer (5) prepared in step c to form a second semi-finished product;
    e、在步骤d复合好的第二半成品材料的内表面再复上外表面已经涂布好第三黏合层(6)的第一PET透明膜(7)，然后在第一PET透明膜(7)的内表面再复上外表面已经涂布好第四黏合层(8)的PET蓝色薄膜(9)，PET蓝色薄膜(9)的内表面再涂布硅胶层(10)，形成第三半成品；e. The inner surface of the second semi-finished material compounded in step d is further coated with the first PET transparent film (7) on which the outer surface has been coated with the third adhesive layer (6), and then in the first PET transparent film (7). The inner surface of the PET is further coated with a PET blue film (9) having a fourth adhesive layer (8) coated thereon, and the inner surface of the PET blue film (9) is further coated with a silicone layer (10) to form a first surface. Three semi-finished products;
    f、将步骤e复合好的第三半成品在硅胶层(10)的内表面上再复上第二PET透明膜(11)，形成第四半成品；f, the third semi-finished product compounded in step e is further coated with a second PET transparent film (11) on the inner surface of the silica gel layer (10) to form a fourth semi-finished product;
    g、将步骤f制备好的第四半成品按电子产品的外形尺寸进行模切成型，形成第五半成品；g, the fourth semi-finished product prepared in step f is die-cut according to the outer dimensions of the electronic product to form a fifth semi-finished product;
    h、将已经模切成型的第五半成品贴上标签，即制得成品。h. Label the fifth semi-finished product that has been die-cut, that is, obtain the finished product.
  10. 根据权利要求9所述的制备方法，其特征在于：在所述的步骤g中，模切成型时，确保所述石墨片层(5)除厚度外的外形尺寸均小于所述磨砂膜(1)、所述装饰膜(3)、所述第一PET透明膜(7)、所述PET蓝色薄膜(9)、所述硅胶层(10)、所述第二PET透明膜(11)和所述标签(12)的外形尺寸。 The preparation method according to claim 9, wherein in the step g, during die-cut molding, it is ensured that the outer dimensions of the graphite sheet layer (5) other than the thickness are smaller than the frosted film ( 1), the decorative film (3), the first PET transparent film (7), the PET blue film (9), the silica gel layer (10), the second PET transparent film (11) And the outer dimensions of the label (12).
PCT/CN2017/000183 2016-11-18 2017-02-20 External adhesive film of electronic product and preparation method thereof WO2018090473A1 (en)

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