CN108017288B - Glass plate containing dazzling printing ink layer and preparation method thereof - Google Patents
Glass plate containing dazzling printing ink layer and preparation method thereof Download PDFInfo
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- CN108017288B CN108017288B CN201610966778.7A CN201610966778A CN108017288B CN 108017288 B CN108017288 B CN 108017288B CN 201610966778 A CN201610966778 A CN 201610966778A CN 108017288 B CN108017288 B CN 108017288B
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- 239000011521 glass Substances 0.000 title claims abstract description 107
- 238000007639 printing Methods 0.000 title claims description 5
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000010410 layer Substances 0.000 claims abstract description 149
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 76
- 238000000576 coating method Methods 0.000 claims abstract description 35
- 239000011247 coating layer Substances 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 229920001187 thermosetting polymer Polymers 0.000 claims abstract description 14
- 238000002834 transmittance Methods 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000007650 screen-printing Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000005507 spraying Methods 0.000 claims description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- 238000011161 development Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000007888 film coating Substances 0.000 claims description 2
- 238000009501 film coating Methods 0.000 claims description 2
- 230000004313 glare Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001723 curing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3411—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials
- C03C17/3417—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of inorganic materials all coatings being oxide coatings
Abstract
The invention provides a glass plate containing a glare ink layer and a preparation method thereof, wherein the glass plate comprises a glass substrate, a transparent photoresist layer arranged on the B surface of the glass substrate through coating, UV exposure and thermosetting baking, a coating layer arranged on the transparent photoresist layer, and a colored ink layer arranged on the coating layer, the thickness of the transparent photoresist layer is 0.3-5 microns, the coating layer comprises three or more oxide sublayers, and the total thickness of the coating layer is 100-280 nm. The transparent photoresistance layer and the semitransparent coating layer which are additionally arranged in the invention bring the dazzle ink color for the glass plate, and the coating process does not influence the quality of glass products, and the transparent photoresistance layer, the glass substrate and the coating layer have good adhesion performance and bonding force. Therefore, the invention successfully develops the glass plate with the A-side of the glass panel or the back cover showing the effect of dazzling or multicolor ink, and the glass plate also has the characteristics of high flatness, low roughness, high brightness and the like.
Description
Technical Field
The invention belongs to the technical field of glass plate processing, and particularly relates to a glass plate containing a dazzling printing ink layer and a preparation method thereof.
Background
The glass is a multifunctional oxide crystal integrating excellent optical performance, physical performance and chemical performance, the artificially processed glass has good wear resistance, and meanwhile, the glass has higher surface tension due to compactness, and the characteristics are very suitable for touch panels or back covers of electronic products such as mobile phones, watches, cameras and the like.
At present, a conventional ink coloring process is adopted for a processing process of a touch panel or a back cover which takes glass as a material, namely, a layer of colored ink is sprayed (suitable for 3D glass) or printed (suitable for 2D glass) on the B surface of the panel or the back cover, and then a protective ink layer is covered on the colored ink to form a glass product with color decoration. However, the glass panel or the back cover obtained by the process has the advantages of dull color, no metal texture and no dazzling effect.
Patent application CN201510114819.5 discloses a preparation method of a white frame in a white OGS touch screen, which comprises the following steps: a) Cleaning a touch screen glass plate; b) Screen printing a first white ink layer in a frame area of a touch screen glass plate; c) Screen printing a second white ink layer on the upper surface of the first white ink layer; d) Curing; e) Cleaning a touch screen glass plate; f) Coating black photoresist; g) Pre-curing the black photoresist; h) Exposing; i) Developing to form a frame-shaped black photoresist layer; j) Curing the black photoresist layer to finish the manufacture of a white frame; spraying black photoresist by adopting a non-contact coating process, and finally forming a black photoresist layer positioned at the uppermost layer through exposure and development, so that impurities are prevented from being brought into a product; the black photoresist is basically not deflated under high-temperature coating, so that the coating quality is greatly improved; in addition, the black photoresist has low viscosity, and the surface smoothness of the product can be improved; and black photoresist can be selectively printed by inkjet printing, so that the production cost is saved. The method also comprises the step of arranging a functional coating layer on the black photoresist layer. The arrangement of the black photoresist in the method is mainly used for improving the film quality of the subsequent coating. The white ink layer and the glass plate are not provided with any film layer, so that only the colors of the first white ink layer and the second white ink layer can be seen from the A face of the glass plate, namely, the appearance color of the touch screen is still dull white without any dazzling effect.
With the development of the glass processing field and the improvement of user requirements, there is a need in the art to provide a glass sheet containing a glare ink layer and a method for preparing the same.
Disclosure of Invention
In order to make the a-side (user contact side) of the glass panel or the back cover exhibit the ink color with glare, the inventors thought to provide a transparent photoresist layer and a semitransparent coating layer of a certain thickness in succession between the glass substrate and the colored ink layer.
Therefore, the invention firstly provides a glass plate containing a dazzling ink layer, which comprises a glass substrate, a transparent photoresist layer, a coating layer and a colored ink layer, wherein the transparent photoresist layer is arranged on the B surface of the glass substrate after coating, UV exposure and thermosetting baking, the coating layer is arranged on the transparent photoresist layer, the thickness of the transparent photoresist layer is 0.3-5 microns, the coating layer comprises three or more oxide sublayers, and the total thickness of the coating layer is 100-280 nm.
The inventors first examined the effect of the total thickness of the coating on the glass sheet product, and it was difficult to achieve the desired glare effect when the total thickness of the coating was less than 100 nm. When the total thickness of the coating layer is larger than 280nm, the dazzling effect of the ink on the glass plate product is poor, and meanwhile, the glass substrate can be possibly damaged during coating.
In the present invention, the photoresist is also called a photoresist, which is mainly classified into an opaque photoresist and a transparent photoresist according to transparency, and a semitransparent photoresist can be prepared from the two according to the need. In the present invention, the transparent resist means a resist layer formed after curing, which has a transmittance of 95% or more, preferably 97% or more. The photoresist is divided into positive photoresist and negative photoresist according to the exposure property. The positive photoresist is a photoresist that is soluble in a photoresist developer in a portion where light is irradiated, and insoluble in a photoresist developer in a portion where light is not irradiated. The negative photoresist is a photoresist that is insoluble in a photoresist developer in the portion irradiated with light, and soluble in a photoresist developer in the portion not irradiated with light.
The inventors of the present invention have also tried to use transparent materials such as PU gloss oil and UV gloss oil instead of the transparent resist in the present invention. However, it has been found experimentally that when transparent materials such as PU gloss oil and UV gloss oil are used, the buffer layer formed by these materials itself has a light transmittance of only about 85% at the highest, which will ultimately significantly reduce the light transmittance of the glass sheet product, and thus these materials are not suitable as the buffer material in the present invention. In addition, experiments show that the structure of the transparent photoresist layer obtained by heat curing without UV exposure after spraying is obviously different from that of the transparent photoresist layer in the invention, and the transmittance of the transparent photoresist layer cannot reach 97% or more.
In a specific embodiment, the glass plate is a display panel or a back cover of an electronic product, and the color of the colored ink layer is color, black or white.
In a specific embodiment, the coating layer is formed by alternately coating silicon dioxide and niobium pentoxide.
In a specific embodiment, the thickness of the transparent photoresist layer is 0.5-3 micrometers, and the thickness of the coating layer is 120-250 nm.
In a specific embodiment, the glass sheet further comprises a protective ink layer disposed on the colored ink layer.
In a specific embodiment, the transparent photoresist layer has a light transmittance of 97% or more.
The invention also provides a preparation method of the glass plate, which comprises the following steps:
step a, cleaning the glass substrate, coating transparent photoresist on the whole surface of the B surface of the glass substrate, pre-baking, UV exposure, optional development and thermosetting baking to obtain a shaped transparent photoresist layer,
step b, coating a film on the transparent photoresist layer to obtain the film coating layer,
step c, silk-screen printing or spraying ink on the coating layer to obtain the colored ink layer,
and an optional step d of screen printing or spraying a protective ink onto the colored ink layer to obtain the protective ink layer.
In a specific embodiment, the pre-baking temperature in the step a is 90-120 ℃ and the pre-baking time is 0.5-5 min; the temperature of the thermosetting baking is 220-260 ℃, and the thermosetting baking time is 40-80 min.
In a specific embodiment, the transparent photoresist layer obtained after step a has a light transmittance of 98% or more, preferably 99% or more.
Specifically, since the transmittance of the glass substrate itself is about 92%, the transmittance of the transparent resist layer can be as high as 99% or more. Therefore, when the transmittance of the glass plate provided with the transparent resist layer is detected, for example, it is: wavelength is 380-480nm, light transmittance is 83.527-89.991%; wavelength 480-580nm, light transmittance 89.991-91.527%; wavelength 580-680nm, light transmittance 91.527-91.744%; the wavelength is 680-780nm, and the light transmittance is 91.744-91.326%.
In a specific embodiment, the transparent photoresist is coated on the glass substrate by spraying the transparent photoresist by using an ink jet device.
The transparent light resistance layer and the semitransparent coating layer which are additionally arranged between the glass substrate and the colored ink layer bring the dazzling ink color for the glass plate, and the coating process does not influence the quality of glass products, and the transparent light resistance layer, the glass substrate and the coating layer have good adhesion performance and bonding force. Therefore, the invention successfully develops the glass plate with the A-side of the glass panel or the back cover showing the effect of dazzling or multicolor ink, and the glass plate also has the characteristics of high flatness, low roughness, high brightness and the like.
Drawings
FIG. 1 is a schematic structural view of a 2D glass panel containing a glare ink layer according to the present invention,
fig. 2 is a schematic structural view of a 2D glass back cover with a glare ink layer according to the present invention.
In the figure: 1. the glass substrate comprises a glass substrate body, 2 parts of a transparent light resistance layer, 3 parts of a coating layer, 4 parts of a colored ink layer, 5 parts of a protective ink layer.
Detailed Description
In the present invention, the B-side of the glass substrate refers to a side thereof which is not in direct contact with a user when used in an electronic product, and the a-side refers to a side thereof which is in direct contact with a user. The transparent photoresist is commercially available.
In the present invention, the coating of the transparent photoresist is accomplished, for example, under an ink jet apparatus.
In the present invention, the plated translucent film layer comprises at least three oxide film layers, in one embodiment SiO 2 And Nb (Nb) 2 O 5 And 4-7 layers are overlapped in a crossing way.
In a specific embodiment, the protective ink layer is a clear ink layer. As is known in the art, when the colored ink layer 4 is provided for the whole surface, the development step is not involved in step a, whereas when the colored ink layer 4 is provided only in a partial region of the B surface, the development step needs to be included in step a or after step c.
The present invention is specifically illustrated by the following examples, but the scope of the present invention is not limited to the following examples.
Example 1
The aim of this example was to produce a 2D glass panel containing a glare white ink layer. The glass panel comprises a white frame area and a transparent visual area. The structure of the product is shown in figure 1.
Step a, cleaning the glass substrate, coating transparent photoresist on the whole surface of the B surface of the glass substrate, pre-baking the transparent photoresist layer, exposing and developing by using a photomask, and thermosetting to obtain a shaped transparent photoresist layer (2) in a frame area,
step b, masking the window area on the transparent photoresist layer (2) to form a coating film, thereby obtaining the coating film layer (3) in the frame area, wherein the first layer of SiO 2 Thickness of 30nm, a second layer Nb 2 O 5 Thickness of 25nm, third layer of SiO 2 Thickness of 30nm, fourth layer Nb 2 O 5 Thickness of 25nm, fifth layer SiO 2 The thickness was 30nm.
Step c, silk-screen printing white ink on the coating layer (3) to obtain the colored ink layer (4),
and c, obtaining the 2D glass panel product containing the dazzle white ink layer.
Or another preparation method can be adopted in the embodiment, comprising the following steps.
Step a2, cleaning the glass substrate, coating transparent photoresist on the whole surface of the B surface of the glass substrate, pre-baking the transparent photoresist layer, exposing the transparent photoresist layer by using a photomask (without developing after exposure), and obtaining a transparent photoresist layer (2) with a whole surface and shaped after thermosetting baking,
step b2 of coating the entire surface of the transparent resist layer (2) to thereby obtain the coating layer (3), wherein the first layer of SiO 2 Thickness of 50nm, a second layer Nb 2 O 5 Thickness of 40nm, third layer of SiO 2 Thickness of 60nm, fourth layer Nb 2 O 5 The thickness was 30nm.
And c2, silk-screen printing white ink on the frame area of the coating layer (3) to obtain the colored ink layer (4), developing the transparent photoresist layer (2), and removing the transparent photoresist and the coating layer in the window area.
And c2, obtaining the 2D glass panel product containing the dazzle white ink layer.
A 2D glass panel containing a glare or fantasy white ink layer according to the present invention can be obtained using either of the two methods described above.
Example 2
The aim of this example was to produce a 3D glass panel containing a glare black ink layer. The glass panel comprises a black frame area and a transparent visual area.
Step a, cleaning the glass substrate, coating transparent photoresist on the whole surface of the B surface (the concave surface of the 3D glass panel), pre-baking the transparent photoresist layer, exposing by using a photomask UV, developing, and thermosetting to obtain a shaped transparent photoresist layer (2) in a frame area,
step b, shielding the coating film in the window area on the transparent photoresist layer (2) so as to obtain the coating film layer (3) in the frame area,
and c, spraying black photoresist on the whole surface of the coating layer (3), and pre-baking, exposing and developing to obtain a colored ink layer (4) formed by the black photoresist in a frame area. And c, obtaining the 3D glass panel containing the dazzling black ink layer.
Example 3
The purpose of this example was to produce a 3D glass back cover containing a glare gold ink layer. The back cover comprises a whole golden ink layer.
Step a, cleaning the glass substrate, coating transparent photoresist on the whole surface of the B surface (the concave surface of the 3D glass back cover), pre-baking the transparent photoresist layer, performing UV exposure on the whole surface, performing thermosetting baking, obtaining a shaped transparent photoresist layer (2) on the whole surface of the B surface,
step b, coating the whole surface of the transparent photoresistance layer (2) to obtain a coating layer (3),
step c, spraying golden ink on the whole surface of the coating layer (3) to obtain a colored ink layer (4),
and D, silk-screen printing transparent protective ink on the colored ink layer (4) to obtain the protective ink layer (5), and obtaining the 3D glass backboard containing the dazzling golden ink layer.
Example 4
The aim of this example was to produce a 2D glass back cover containing a glare blue ink layer. The back cover comprises a whole blue ink layer, and the structure diagram of the product is shown in fig. 2.
Step a, cleaning the glass substrate, coating transparent photoresist on the whole surface of the B surface of the glass substrate, pre-baking the transparent photoresist layer, performing UV exposure on the whole surface of the glass substrate, performing thermosetting baking to obtain a shaped transparent photoresist layer (2) on the whole surface of the B surface of the glass substrate,
step b, coating the whole surface of the transparent photoresistance layer (2) to obtain a coating layer (3),
step c, silk screen printing blue ink on the whole surface of the coating layer (3) to obtain a colored ink layer (4),
and D, spraying transparent protective ink on the colored ink layer (4) to obtain the protective ink layer (5), and obtaining the 2D glass backboard containing the dazzling blue ink layer after the step D.
Comparative example 1
The purpose of this example was to produce a 2D glass panel with a white ink layer. The glass panel comprises a white frame area and a transparent visual area.
And m, cleaning the glass substrate (1), performing silk screen printing on white ink in a frame area of the B surface of the glass substrate to obtain the colored ink layer (4), and optionally performing silk screen printing on a protective ink layer (5) on the colored ink layer (4) in the frame area to obtain the 2D glass panel product containing the white ink layer. The white ink layer 2D glass panel obtained in comparative example 1 had no glare or fantasy effect.
Comparative example 2
The aim of this example was to produce a 2D glass panel containing a glare white ink layer. The glass panel comprises a white frame area and a transparent visual area.
The other steps in this example are the same as in example 1, except that the first SiO layer is deposited in step b 2 Thickness of 60nm, a second layer Nb 2 O 5 Thickness of 60nm, third layer of SiO 2 Thickness of 60nm, fourth layer Nb 2 O 5 Thickness of 50nm, fifth layer SiO 2 The thickness was 60nm. The total thickness of the coating layer was 290nm. The obtained 2D glass panel with the white ink layer has a dazzling or colorful effect, but the appearance effect is obviously poorer than that in the embodiment 1, and the plated thick film causes larger damage to the glass plate product, so that the quality of the obtained glass plate product cannot meet the requirements of customers.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a glass board that contains dazzle light printing ink layer, includes glass substrate (1), through coating and UV exposure and thermosetting transparent light resistance layer (2) that set up in glass substrate (1) B face, coating film layer (3) of setting on transparent light resistance layer (2), and take colour printing ink layer (4) of setting on coating film layer (3), the thickness of transparent light resistance layer (2) is 0.3~5 microns, the luminousness of transparent light resistance layer (2) is more than 95%, the coating film layer is SiO 2 And Nb (Nb) 2 O 5 Three or more layers are overlapped in a crossing way, and the total thickness of the coating layers is 100-280 nm; the coating layer is a semitransparent coating layer; the B-side of the glass substrate is a side that is not in direct contact with a user.
2. Glass pane according to claim 1, characterized in that the glass pane is a display panel or a back cover of an electronic product, the colour of the coloured ink layer (4) being coloured, black or white.
3. The glass plate according to claim 1, wherein the thickness of the transparent photoresist layer (2) is 0.5-3 microns, and the thickness of the coating layer is 120-250 nm.
4. Glass pane according to claim 1, characterized in that the glass pane further comprises a protective ink layer (5) arranged on the coloured ink layer (4).
5. The glass sheet according to any one of claims 1 to 4, wherein the transparent resist layer (2) has a light transmittance of 97% or more.
6. The method for producing a glass sheet according to any one of claims 1 to 5, comprising the steps of:
step a, cleaning the glass substrate, coating transparent photoresist on the whole surface of the B surface of the glass substrate, pre-baking, UV exposure, optional development and thermosetting baking to obtain a shaped transparent photoresist layer (2),
step b, coating a film on the transparent photoresist layer (2) to obtain a film coating layer (3),
and c, performing silk screen printing or ink spraying on the coating layer (3) to obtain the colored ink layer (4).
7. The method according to claim 6, wherein the pre-baking temperature in step a is 90-120 ℃ and the pre-baking time is 0.5-5 min; the temperature of the thermosetting baking is 220-260 ℃, and the thermosetting baking time is 40-80 min.
8. The method of claim 6, wherein the transparent resist layer (2) obtained in step a has a light transmittance of 98% or more.
9. The method of claim 6, wherein the transparent resist layer (2) obtained after step a has a light transmittance of 99% or more.
10. The method of claim 6, wherein the coating of the transparent photoresist on the glass substrate is by spraying the transparent photoresist using an ink jet device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610966778.7A CN108017288B (en) | 2016-10-28 | 2016-10-28 | Glass plate containing dazzling printing ink layer and preparation method thereof |
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| CN201610966778.7A CN108017288B (en) | 2016-10-28 | 2016-10-28 | Glass plate containing dazzling printing ink layer and preparation method thereof |
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| CN108017288B true CN108017288B (en) | 2024-03-19 |
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| CN108545964B (en) * | 2018-06-08 | 2021-08-20 | 深圳市骏达光电股份有限公司 | Method for manufacturing rear cover of mobile phone glass |
| CN111217536A (en) * | 2020-01-06 | 2020-06-02 | 青岛锦绣前程节能玻璃有限公司 | Colorful sunlight control coated glass and preparation method thereof |
| CN113630992B (en) * | 2020-05-06 | 2023-11-07 | Oppo广东移动通信有限公司 | Preparation method of coated part, shell and electronic equipment |
| CN117430346A (en) * | 2023-12-21 | 2024-01-23 | 浙江大华技术股份有限公司 | Glass processing method, glass and image pickup device |
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