CN211036082U

CN211036082U - Ultrahigh-adhesive-force composite board color film

Info

Publication number: CN211036082U
Application number: CN201921844821.8U
Authority: CN
Inventors: 李智超; 毕文江; 朱金波; 孙波; 曹志嫦; 赵振辉
Original assignee: Henan Dubang Photoelectric Co ltd
Current assignee: Henan Dubang Photoelectric Co ltd
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-07-17
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a super high adhesive force composite board colour membrane, including the transition layer that is located the composite board back and plates In proper order and the dielectric film rete that distributes In turn, the transition layer can be any one material In the middle of Si, Cr, In and constitute, it constitutes to be situated betweenThe film layer is a film composed of a high refractive index layer and a low refractive index layer, wherein the high refractive index layer and the low refractive index layer are alternately distributed, the low refractive index layer is arranged below the high refractive index layer, and the high refractive index layer is H₄、SI₃N₄、TI₃O₅、NB₂O₅The low refractive index layer is SiO₂Or A L₂O₃The dielectric film comprises a dielectric film layer, and one or more layers of ink are printed on the surface of the dielectric film layer in a silk-screen mode. This novel composite sheet material colour membrane rete adhesive force is firm, gorgeous colour, fine resistant environmental test performance, the colour durable of product can satisfy any harsh service environment, can be applied to around the cell-phone on the apron.

Description

Ultrahigh-adhesive-force composite board color film

Technical Field

The utility model relates to an optical coating technical field especially relates to a super high adhesive force composite board colour membrane.

Background

The color film of the composite board is mainly applied to the rear cover plate of the mobile phone, and has great market demand along with the rapid development of the mobile phone industry, and the color film has the function of increasing the gorgeous color of the ink and enabling the ink to present various colors.

At present, the common practice in the industry is to use an evaporator or a sputter to plate SiO₂And TiO₂As a color film, but due to PMMA or PC and a composite board after surface hardening treatment or coating treatment thereof, and the conventional optical material H₄、SI₃N₄、TI₃O₅、NB₂O₅、AL₂O₃、SiO₂The formed film layers have weak adhesion, so that the color film coated on the composite board can be stripped after being soaked in water at the temperature of 80 ℃ for 30 minutes, the adhesion cannot meet the requirements of customers, and the color film on the surface of the composite board has obvious phenomena of watermarks, discoloration, stripping and the like after tests such as ultraviolet irradiation, high temperature and high humidity and the like. Therefore, how to solve the above problems becomes a problem in the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above shortcoming of prior art, the utility model provides a superelevation adhesive force composite board colour membrane, before using the sputtering deposition film, plate the transition layer In one kind In one deck Si, Cr, the In earlier, make colour membrane adhesive force superstrong, environmental resistance performance test ability is better, and the colour is durable lasting and does not fade, guarantees that rete quality, production efficiency and yields promote greatly.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides an ultra-high adhesive force composite board colour membrane, is including the transition layer that is located the composite board back and plates In proper order and the dielectric film rete of alternative distribution, the transition layer can be any one material In Si, Cr, In and constitute, the dielectric film rete is the film that comprises high refractive index layer and low refractive index layer, and high refractive index layer and low refractive index layer alternative distribution, wherein low refractive index layer is under, high refractive index layer is on, high refractive index layer is H₄、SI₃N₄、TI₃O₅、NB₂O₅The low refractive index layer is SiO₂Or A L₂O₃The dielectric film comprises a dielectric film layer, and one or more layers of ink are printed on the surface of the dielectric film layer in a silk-screen mode.

Furthermore, the dielectric film layer is more than 2 layers and can reach 20 layers at most.

Further, the thickness of the transition layer material film layer is 0-5nm, and the coating mode comprises thermal evaporation and sputtering coating.

Further, the thickness of the film layer of the high refractive index layer material is 10-1000nm, and the thickness of the film layer of the low refractive index layer material is 10-1000 nm.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a product coating film layer chooses for use with composite board, PMMA and PC cohesion good Si, Cr, In non-dielectric film as the transition layer, regard high refractive index layer and low refractive index layer distribution as the dielectric film rete In turn, establish the dielectric film rete on the transition layer, the adhesion force of obtained color film rete can reach 100 degrees temperature and soak 60 minutes, and the adhesive force of cut adhesion tensile film layer reaches 5B, and ultraviolet resistance shines and test performances such as high temperature and high humidity are stable, the repeatability is good; one or more layers are printed on the surface of the dielectric film layer through the printing ink, so that the dielectric film layer is positioned between the glass and the printing ink, the gorgeous color of the printing ink is improved through the interference superposition effect of the film layer on the light or different bright colors are realized by directly utilizing the interference superposition effect of the film layer on the light, and the color is durable and does not fade. In a word, the utility model discloses the film of preparation not only has gorgeous colour, but also has superstrong adhesive force and fine resistant environmental test performance, and the colour durable of product can satisfy any harsh operational environment the utility model provides a composite sheet material colour membrane can be applied to around the cell-phone on the apron, the technology and the product of this patent are all reliable and stable, satisfy various user demands.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic view of the color film structure of the present invention.

Detailed Description

The following will be described in detail with reference to the technical solutions in the embodiments of the present invention:

referring to fig. 1, the ultrahigh-adhesion composite board color film comprises a transition layer 2 and dielectric film layers which are alternately distributed and sequentially plated on the back surface of a composite board 1, wherein the transition layer 2 can be made of any one of Si, Cr and In, the thickness of the material film layer of the transition layer 2 is 0-5nm, the plating mode comprises thermal evaporation and sputtering, the dielectric film layer is a thin film consisting of a high-refractive-index layer 3 and a low-refractive-index layer 4, the high-refractive-index layer 3 and the low-refractive-index layer 4 are alternately distributed, the low-refractive-index layer 4 is arranged below the high-refractive-index layer 3, and the dielectric film layers are more than 2 and can reach 20 at most; the high refractive index layer 3 is H₄、SI₃N₄、TI₃O₅、NB₂O₅The low refractive index layer, the low refractive index layer4 is SiO₂Or A L₂O₃The thickness of the film layer of the high refractive index layer 3 is 10-1000nm, the thickness of the film layer of the low refractive index layer 4 is 10-1000nm, the printing ink 5 is further included, one or more layers of the printing ink 5 are printed on the surface of the film layer of the medium film in a silk-screen mode, the adhesion of the film is firm, and the color is bright after silk-screen printing.

The novel coating process flow comprises the following steps:

step 1: after a surface protective film of a composite plate which is subjected to PMMA or PC and surface hardening treatment or coating treatment is removed, a stainless steel substrate is wrapped by a priming adhesive tape to serve as a workpiece, a strong adhesive tape which is pasted in advance is arranged at the edge of the workpiece, the composite plate 1 is bonded on the workpiece and then lightly pressed by a pressing tool, so that the composite plate 1 is firmly combined with the primer, the dry humidity and the dust degree of a tray loading area and a film coating machine area are strictly ensured in the whole operation process, and the defect of coating of a product is avoided;

step 2: clamping a workpiece by using a clamp, sending the workpiece into a vacuum environment, and further cleaning microscopic oil stains and dust on the surface of the composite board substrate by using RF source discharge before coating so as to improve the adhesive force of a film layer;

and step 3: performing magnetron sputtering on any one of a transition layer material target material silicon target, a chromium target or an indium target in an environment of working gas, and depositing on the composite plate 1 substrate to obtain a transition layer material film layer, wherein the working gas is argon, the preferred argon flow is 250-350SCCM, and the preferred magnetron sputtering pressure is 1.0-6.0-10^-4Pa, the power of the preferred magnetron sputtering is 5-15kw, and the oxidation power of the preferred magnetron sputtering is 0 kw;

and 4, step 4: performing magnetron sputtering on a high-refractive-index layer material target and a low-refractive-index layer material target in an environment of working gas and reaction gas, and sequentially depositing to obtain a high-refractive-index layer oxide film and a low-refractive-index layer oxide film on a composite plate substrate, wherein the high-refractive-index layer and the low-refractive-index layer are alternately distributed, the working gas is argon, and the reaction gas is oxygen; and (3) argon gas: oxygen volume ratio = (1-3): (2-4), in the step 4, the preferable argon flow is 250-350SCCM, the oxygen flow is 150-450SCCM, and the preferable magnetismThe sputtering-controlling gas pressure is 1.0-2.0 x 10^-3Pa, the power of the preferred magnetron sputtering is 7-15kw, and the oxidation power of the preferred magnetron sputtering is 0-3.5 kw;

and 5: after plating, the lower disc is coated with a film and enters a silk-screen printing process, one or more printing inks (black or other printing inks) are silk-screened to obtain the color film of the ultrahigh-adhesion composite board, and the ultrahigh-adhesion composite board is cut into the size required by a customer by laser so as to be delivered.

The purity of the transition layer material target, the high refractive index layer material target and the low refractive index layer material target is 99.999%, the distance from the targets to the composite plate substrate can be 2-5cm, and the purity of reaction gas is 99.99%.

The color film after film coating is subjected to a series of severe performance tests: a) a reflection spectrum test is carried out, the reflection spectrum of the coating surface is tested by a Japan imported reflectivity tester, and the chromaticity coordinates of products in each batch in the range of 360-740 nm are achieved, so that the customer requirements are met; b) testing the adhesive force of the film layer to meet the requirement of 5B; c) and drying after silk-screen printing of the film coating area, wherein the adhesion of the color film is firm, and the color is bright after silk-screen printing.

To sum up, use blast colour membrane that this kind of technology plated in composite board surface and printing ink, the rete is firm, can make colours such as different blue, white, red, gold, silver, the utility model discloses the colour membrane rete adhesive force of preparation is firm, and manufacturing procedure is simple, and the processing yield is high, and is with low costs inefficiency high, is a composite board colour membrane plating technology worth promoting.

The foregoing is directed to embodiments of the present application and it is understood that various modifications and enhancements may be made by those skilled in the art without departing from the principles of the application and are intended to be included within the scope of the application.

Claims

1. The color film of the composite board with the ultrahigh adhesive force comprises a transition layer and alternately distributed dielectric film layers, wherein the transition layer is sequentially plated on the back of the composite board, and the dielectric film layers are characterized In that the transition layer can be made of any one of Si, Cr and In, and the dielectric film layers are made of any one of Si, Cr and InA film consisting of a high refractive index layer and a low refractive index layer, wherein the high refractive index layer and the low refractive index layer are alternately distributed, the low refractive index layer is arranged below the high refractive index layer, and the high refractive index layer is H₄、SI₃N₄、TI₃O₅、NB₂O₅The low refractive index layer is SiO₂Or A L₂O₃The dielectric film comprises a dielectric film layer, and one or more layers of ink are printed on the surface of the dielectric film layer in a silk-screen mode.

2. The ultra-high adhesion composite board color film according to claim 1, wherein the dielectric film layer is more than 2 layers and up to 20 layers.

3. The ultra-high adhesion composite board color film as claimed in claim 1, wherein the thickness of the transition layer material film layer is 0-5nm, and the coating method comprises thermal evaporation and sputtering coating.

4. The ultra-high adhesion composite board color film as claimed in claim 1, wherein the thickness of the high refractive index layer material is 10-1000nm, and the thickness of the low refractive index layer material is 10-1000 nm.