CN111399099A - Backlight module reflecting film with fireproof performance and processing method thereof - Google Patents

Backlight module reflecting film with fireproof performance and processing method thereof Download PDF

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Publication number
CN111399099A
CN111399099A CN202010381722.1A CN202010381722A CN111399099A CN 111399099 A CN111399099 A CN 111399099A CN 202010381722 A CN202010381722 A CN 202010381722A CN 111399099 A CN111399099 A CN 111399099A
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China
Prior art keywords
fireproof
layer
fire
ink
backlight module
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Pending
Application number
CN202010381722.1A
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Chinese (zh)
Inventor
丁进新
冯杰
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SHENZHEN HUICHUANGDA TECHNOLOGY CO LTD
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SHENZHEN HUICHUANGDA TECHNOLOGY CO LTD
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Priority to CN202010381722.1A priority Critical patent/CN111399099A/en
Publication of CN111399099A publication Critical patent/CN111399099A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • 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
    • B32B27/10—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 paper or cardboard
    • 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
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/26—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/14—Printing or colouring
    • B32B38/145—Printing
    • 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
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • G02B1/14—Protective coatings, e.g. hard coatings
    • 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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/26—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers
    • B32B2037/268—Release layers
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • 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
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/416—Reflective
    • 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
    • B32B2457/00—Electrical equipment

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The invention discloses a backlight module reflecting film with fireproof performance, which comprises a base material, wherein a fireproof layer A formed by curing black shading fireproof ink is arranged on the back surface of the base material, and a glue layer is arranged on the front surface of the base material. The fireproof layer A formed by curing the black shading fireproof ink is arranged on the base material, so that the fireproof and high-temperature-resistant performances of the reflective film can be improved, and a fire disaster caused by overhigh heating source temperature due to the fact that a notebook computer is used in a high-temperature environment or for a long time can be avoided; the invention also discloses a processing method of the fireproof backlight module reflecting film, which comprises the following steps: the material preparation, the printing ink, the glue printing and the sticking of the release film can be conveniently improved on the existing production line for producing the reflective film, so that the cost can be saved and the efficiency can be improved.

Description

Backlight module reflecting film with fireproof performance and processing method thereof
[ technical field ] A method for producing a semiconductor device
The invention relates to a reflective film of a notebook computer luminous keyboard backlight module, in particular to a backlight module reflective film with fireproof performance and a processing method thereof.
[ background of the invention ]
At present, electronic products, particularly notebook computer products, are thinner and thinner, so that the internal space is greatly compressed, and the distances between plastic accessories on the notebook computer and a heating source are closer and closer, so that the thin plastic parts have more strict requirements on fire prevention and high temperature resistance, and the fire caused by overhigh temperature of the heating source when the notebook computer is used in a high-temperature environment or for a long time is avoided; the area of the notebook computer keyboard is larger, the backlight film group below the luminous keyboard is closest to a computer mainboard, the backlight module is a thin plastic product, the reflection film closest to the mainboard needs to reach the fire protection grade of VTM-0, and the reflection film of the backlight film group of the luminous keyboard in the current market can not realize fire protection.
The invention is researched and proposed aiming at the defects of the prior art.
[ summary of the invention ]
The technical problem to be solved by the invention is to provide a backlight module reflecting film with fireproof performance, so that the backlight module reflecting film can meet the requirement of use in a high-temperature environment.
In order to solve the technical problem, the backlight module reflecting film with the fireproof performance comprises a base material, wherein a fireproof layer A formed by curing black shading fireproof ink is arranged on the back surface of the base material, and a water glue layer is arranged on the front surface of the base material.
According to the backlight module reflecting film with the fireproof performance, the fireproof layer B formed by curing the black shading fireproof ink is arranged between the front surface of the base material and the water glue layer.
According to the backlight module reflecting film with the fireproof performance, the fireproof layer C formed by curing the white reflective fireproof ink is arranged between the front surface of the base material and the water glue layer.
According to the backlight module reflecting film with the fireproof performance, the release paper layer is arranged on the outer side of the glue layer.
In the backlight module reflecting film with fireproof performance, the thickness of the fireproof layer A is 0.005 mm-0.012 mm.
According to the backlight module reflecting film with the fireproof performance, the thickness of the fireproof layer A is 0.005 mm-0.012 mm, and the thickness of the fireproof layer B is 0.005 mm-0.012 mm.
The backlight module reflecting film with fireproof performance is characterized in that the thickness of the fireproof layer A is 0.005-0.012 mm, and the thickness of the fireproof layer C is 0.005-0.012 mm.
According to the backlight module reflecting film with the fireproof performance, the base material is a high-temperature-resistant PET film with the thickness of 0.0125 mm-0.025 mm.
The invention also provides a processing method of the fireproof backlight module reflecting film, which comprises the following steps:
s01, preparing materials: selecting a high-temperature-resistant PET film as a base material;
s02, printing ink: printing a fire-proof layer A on the front surface of the base material by using black shading fire-proof ink as a raw material, and printing a fire-proof layer C on the back surface of the base material by using white light-reflecting fire-proof ink as a raw material;
s03, printing glue: selecting glue as a raw material, and printing a glue layer on the surface of the fireproof layer C;
s04, laminating a release film: and a release paper layer is stuck on the surface of the glue layer.
In the processing method of the backlight module reflective film with the fireproof performance, in the step S02, printing is performed by adopting a coating machine or a full-automatic high-speed printing machine in printing ink, wherein the pressure between a printing head and a base material is 10N-12N, the curing temperature of the ink is 110-130 ℃, the curing time is 5 mim-6 min, and the printing speed is 11-13 m/min.
Compared with the prior art, the invention has the following advantages:
1. according to the backlight module reflecting film, the fireproof layer A formed by curing the black shading fireproof ink is arranged on the base material, so that the fireproof and high-temperature resistant performances of the reflecting film can be improved, a fire disaster caused by overhigh heating source temperature due to the fact that a notebook computer is used in a high-temperature environment or for a long time can be avoided, and in addition, the front surface of the base material is provided with the glue layer, so that the assembly of the backlight module and the further processing of the reflecting film are facilitated.
2. The processing method of the backlight module reflecting film with the fireproof performance can be conveniently improved on the existing production line for producing the reflecting film, and can save the cost and improve the efficiency.
[ description of the drawings ]
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic cross-sectional view of a reflective film according to example 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of a reflective film according to example 2 of the present invention;
fig. 3 is a schematic cross-sectional view of a reflective film according to embodiment 3 of the present invention.
[ detailed description ] embodiments
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the reflective film of the backlight module of the present invention has 3 specific embodiments.
As shown in fig. 1, the reflective film of the backlight module with fire-proof performance of the embodiment includes a substrate 1, and the substrate 1 is a high-temperature resistant PET film with a thickness of 0.0125 mm-0.025 mm; the back of substrate 1 is equipped with flame retardant coating A2 who forms by black shading fire prevention printing ink solidification back, the front of substrate 1 is equipped with glue film 3, the 3 outsides on glue film are equipped with from type ply 6, are used for protecting the glue film from type ply, the subsequent handling of being convenient for, flame retardant coating A2's thickness be 0.005mm ~ 0.012 mm. According to the backlight module reflecting film, the fireproof layer A formed by curing the black shading fireproof ink is arranged on the base material, so that the fireproof and high-temperature resistant performances of the reflecting film can be improved, a fire disaster caused by overhigh heating source temperature due to the fact that a notebook computer is used in a high-temperature environment or for a long time can be avoided, and in addition, the front surface of the base material is provided with the glue layer, so that the assembly of the backlight module and the further processing of the reflecting film are facilitated.
In this embodiment, the fire-retardant layer a is formed by printing black light-shielding and fire-retardant ink on the back surface of the substrate and curing the black light-shielding and fire-retardant ink, and the black light-shielding and fire-retardant ink may be a commercially available product, for example, ink having a model of "7100-flame retardant black" manufactured by upright ink coating limited in easguan city. The glue of the glue layer can adopt a commercially mature product, for example, a water-based silkscreen glue with the model number of 3M-SP7533 manufactured by 3M company.
In this embodiment, the front surface and the back surface of the substrate 1 are not particularly indicated, because the PET film substrate has two surfaces, and if one surface is the front surface, the other surface is the back surface.
As shown in fig. 2, embodiment 2 differs from embodiment 1 in that: in example 2, a fire-retardant layer B4 formed by curing black light-shielding fire-retardant ink was provided between the front surface of the base material 1 and the hydrogel layer 3. The thickness of the fireproof layer A2 is 0.005 mm-0.012 mm, and the thickness of the fireproof layer B4 is 0.005 mm-0.012 mm. Compared with the embodiment 1, the embodiment 2 has the advantages that the fireproof layer B formed by curing the black shading fireproof ink is arranged between the front surface of the base material 1 and the glue layer 3, so that the fireproof and high-temperature resistant performance of the reflecting film can be further improved.
In this embodiment, the fire-retardant layer B is formed by printing black light-shielding and fire-retardant ink on the front surface of the substrate and curing the black light-shielding and fire-retardant ink, and the black light-shielding and fire-retardant ink may be a commercially available product, for example, the type 7100-flame-retardant black ink manufactured by upright ink coating limited in Dongguan city.
As shown in fig. 3, embodiment 3 differs from embodiment 1 in that: in example 3, a fire-retardant layer C5 formed by curing white light-reflecting fire-retardant ink was provided between the front surface of the substrate 1 and the glue layer 3. The thickness of the fireproof layer A2 is 0.005-0.012 mm, the thickness of the fireproof layer C5 is 0.005-0.012 mm, and the reflectivity of the fireproof layer C is required to be more than 65%. Compared with the embodiment 1, the embodiment 3 is provided with the fireproof layer C formed by curing the white reflective fireproof ink between the front surface of the substrate 1 and the glue layer 3, so that the fireproof and high-temperature resistant performance of the reflective film can be further improved, and the phenomenon of light leakage of the backlight module can be prevented.
In this embodiment, the fire-retardant layer C is formed by printing white reflective fire-retardant ink on the front surface of the substrate and curing, and the white reflective fire-retardant ink may be a commercially available product, for example, an ink with a model of "1100-flame retardant white" manufactured by upright ink coating limited in Dongguan city.
The embodiment also provides a processing method of the backlight module reflecting film with the fireproof performance, which comprises the following steps:
s01, preparing materials: selecting a high-temperature-resistant PET film as a base material 1;
s02, printing ink: printing a fireproof layer A2 on the front surface of the base material 1 by using black shading fireproof ink as a raw material, and printing a fireproof layer C5 on the back surface of the base material 1 by using white reflecting fireproof ink as a raw material;
s03, printing glue: selecting glue as a raw material, and printing a glue layer 3 on the surface of the fireproof layer C5;
s04, laminating a release film: and a release paper layer 6 is stuck on the surface of the glue layer 3.
In the step S02, a coating machine or a full-automatic high-speed printing machine is adopted for printing in the printing ink, wherein the pressure between a printing head and the base material 1 is 10N-12N, the curing temperature of the printing ink is 110-130 ℃, the curing time is 5 mm-6 min, and the printing speed is 11-13 m/min. The fire-retardant layer A and the fire-retardant layer B in the step S02 have no requirement in sequence, and can be arranged according to actual requirements, and the step S02 requires that the adhesive force of the fire-retardant layer A and the fire-retardant layer C can pass through the national standard of a hundred-grid test.
The process can be conveniently improved on the existing production line for producing the reflecting film, can save the cost and improve the efficiency.
The technical contents of the present invention are further illustrated by the examples only for the convenience of the reader, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the invention is subject to the claims.

Claims (10)

1. Backlight unit reflectance coating with fire behavior, characterized in that, the reflectance coating include substrate (1), the back of substrate (1) is equipped with flame retardant coating A (2) that form after the black shading fire prevention printing ink solidification, the front of substrate (1) is equipped with glue film (3).
2. The reflective film with fireproof performance according to claim 1, wherein a fireproof layer B (4) formed by curing black shading fireproof ink is arranged between the front surface of the substrate (1) and the glue layer (3).
3. The reflective film with fireproof performance according to claim 1, wherein a fireproof layer C (5) formed by curing white reflective fireproof ink is arranged between the front surface of the substrate (1) and the glue layer (3).
4. The backlight module reflecting film with fire-proof performance according to any one of claims 1-3, characterized in that a release paper layer (6) is arranged outside the glue layer (3).
5. The reflective film for backlight module with fire-proof performance according to claim 1, wherein the thickness of the fire-proof layer A (2) is 0.005 mm-0.012 mm.
6. The reflective film for a backlight module with fire-proof performance according to claim 2, wherein the thickness of the fire-proof layer A (2) is 0.005 mm-0.012 mm, and the thickness of the fire-proof layer B (4) is 0.005 mm-0.012 mm.
7. The reflective film for a backlight module with fire-proof performance according to claim 3, wherein the thickness of the fire-proof layer A (2) is 0.005 mm-0.012 mm, and the thickness of the fire-proof layer C (5) is 0.005 mm-0.012 mm.
8. The reflective film according to any of claims 5 to 7, wherein the substrate (1) is a high temperature resistant PET film with a thickness of 0.0125mm to 0.025 mm.
9. A processing method of a backlight module reflecting film with fire-proof performance as claimed in claim 3 or 7, characterized by comprising the following steps:
s01, preparing materials: selecting a high-temperature-resistant PET film as a base material (1);
s02, printing ink: printing a fireproof layer A (2) on the front surface of a base material (1) by using black shading fireproof ink as a raw material, and printing a fireproof layer C (5) on the back surface of the base material (1) by using white light-reflecting fireproof ink as a raw material;
s03, printing glue: selecting glue as a raw material, and printing a glue layer (3) on the surface of the fireproof layer C (5);
s04, laminating a release film: and a release paper layer (6) is stuck on the surface of the glue layer (3).
10. The method for processing the reflective film of the backlight module having the fireproof performance according to claim 9, wherein the step S02 comprises printing the ink by using a coater or a full-automatic high-speed printer, wherein the pressure between the print head and the substrate (1) is 10N to 12N, the curing temperature of the ink is 110 ℃ to 130 ℃, the curing time is 5mm to 6min, and the printing speed is 11 m/min to 13 m/min.
CN202010381722.1A 2020-05-08 2020-05-08 Backlight module reflecting film with fireproof performance and processing method thereof Pending CN111399099A (en)

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Application Number Priority Date Filing Date Title
CN202010381722.1A CN111399099A (en) 2020-05-08 2020-05-08 Backlight module reflecting film with fireproof performance and processing method thereof

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Application Number Priority Date Filing Date Title
CN202010381722.1A CN111399099A (en) 2020-05-08 2020-05-08 Backlight module reflecting film with fireproof performance and processing method thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113895130A (en) * 2021-07-30 2022-01-07 上海晟禾智能科技有限公司 Cover plate with chess playing backlight indication and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113895130A (en) * 2021-07-30 2022-01-07 上海晟禾智能科技有限公司 Cover plate with chess playing backlight indication and manufacturing method thereof

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