CN112140794A - Graphic decoration plate and preparation method thereof - Google Patents

Graphic decoration plate and preparation method thereof Download PDF

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Publication number
CN112140794A
CN112140794A CN201910561573.4A CN201910561573A CN112140794A CN 112140794 A CN112140794 A CN 112140794A CN 201910561573 A CN201910561573 A CN 201910561573A CN 112140794 A CN112140794 A CN 112140794A
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layer
resin matrix
resin
decorative plate
image
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罗富华
李亚楠
王继厚
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BYD Co Ltd
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BYD Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/382—Contact thermal transfer or sublimation processes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides an image-text decorative plate, which aims to solve the problems of difficult control of pattern color and poor durability of the existing plate decoration. Meanwhile, the invention also discloses a preparation method of the image-text decorative plate. The image-text decorative plate provided by the invention meets the requirements of radiation protection and durability, and simultaneously has a unique visual effect.

Description

Graphic decoration plate and preparation method thereof
Technical Field
The invention belongs to the technical field of panel decoration, and particularly relates to an image-text decorative plate and a preparation method thereof.
Background
At present, in the mobile phone decoration industry, with the coming of the 5G era, the design of a mobile phone antenna is more and more strict and the mobile phone cannot shield signals, and the rear shell slowly evolves from the metal rear shell to glass, ceramic and composite boards in consideration of certain shielding performance of the metal rear shell on the antenna.
The conventional technical scheme for decorating the surface of the composite board is to electroplate the composite board by an OPVD technology, and a complex multilayer film system structure needs to be designed to electroplate the specified color. The disadvantages are that: the cost is high, the color is difficult to control, and the monochrome gradual change and the bicolor gradual change are difficult to realize. Because the design of the film structure is complicated, the electroplating needs to strictly control the thickness of each layer of film structure, and the thickness control is accurate to the nanometer level, which results in difficult color control, low yield and high cost.
Another current solution is by dyeing on the composite board. The disadvantages are that: the technology can only realize pure color gradual change and single color gradual change and double color gradual change, cannot realize specific pictures and texts, and the composite board is dyed by a plastic dye which has the characteristics of no ultraviolet resistance and can fade in a solar radiation test.
Another current solution is by lithography. The disadvantages are that: the nanometer grade gradual change effect can not be realized, so that the image and text and the color are not fine and smooth, the cost is high, and the performance (poaching hundred-grid test) is often unqualified. Because the graphic and text and the color are formed by superposing the four ink dots of black, red, yellow and blue in the lithography, the ink dots cannot reach the nanometer level, so that the ink dots which are visible to the naked eye can appear, and the graphic and text and the color are not fine and smooth in appearance.
Disclosure of Invention
The invention provides an image-text decorative plate and a preparation method thereof, aiming at the problems of difficult control of pattern color and poor durability of the existing plate decoration.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in one aspect, the invention provides an image-text decorative plate, which comprises a transparent base material, a resin pattern layer and a coating layer, wherein the resin pattern layer is positioned between the transparent base material and the coating layer, the resin pattern layer comprises a resin matrix and ink which permeates into the resin matrix, and the ink forms a pattern in the resin matrix.
Optionally, the composite material comprises one or more of a PC plate, a PMMA plate, a PVC plate, a PS plate, a PC/PMMA composite plate and glass.
Optionally, the resin matrix is a UV resin.
Optionally, the transparent substrate is a PC/PMMA composite board, the glass transition temperature of the transparent substrate is between 145 ℃ and 150 ℃, and the glass transition temperature of the resin matrix is between 120 ℃ and 130 ℃.
Optionally, the resin matrix is formed by curing UV glue, and the UV glue includes the following components by weight:
30-60 parts of polyurethane acrylate, 10-50 parts of aliphatic polyurethane acrylate, 10-20 parts of polyfunctional monomer, 3-5 parts of photoinitiator and 5-10 parts of organic solvent.
Optionally, the UV glue further comprises the following components by weight:
0.1-1 part of leveling agent and 0.1-0.5 part of defoaming agent.
Optionally, the multifunctional monomer is selected from one or more of trimethylolpropane triacrylate, 1, 6-hexanediol diacrylate and 1, 6-hexanediol methoxy monoacrylate;
the photoinitiator is selected from one or more of 1-hydroxycyclohexyl phenyl ketone, diphenylethanone and isopropyl thioxanthone;
the leveling agent is selected from one or more of BYK333, BYK346, BYK371, polymethylphenylsiloxane, polydimethylsiloxane and polyether polyester modified organic siloxane;
the defoaming agent is selected from one or more of polyether modified silicon, GP type defoaming agent and GPE type defoaming agent.
Optionally, the pattern includes pure color, monochrome gradient, bi-color, and multi-color gradient or colored graphics or text.
Optionally, the image-text decorative plate further comprises a stereoscopic grating texture layer, and the stereoscopic grating texture layer is located between the resin pattern layer and the coating layer.
Optionally, the coating layer is an OPVD coating layer, and the OPVD coating layer includes a dielectric layer and/or a metal layer;
the dielectric layer comprises Ti3O5、TiO、Ti2O3、Al2O3NbO and SiO2One or more of;
the metal layer includes one or more of gold, silver, copper, aluminum, indium, and tin.
Optionally, the thickness of the transparent substrate is 0.1 μm to 1cm, the thickness of the resin pattern layer is 5 μm to 100 μm, the depth of the ink penetrating into the resin pattern layer is 5 μm to 20 μm, and the thickness of the film coating layer is 1nm to 600 nm.
Optionally, the image-text decorative plate further comprises an ink layer, and the ink layer is arranged on the surface of the coating layer, which is away from the resin pattern layer.
On the other hand, the invention provides a preparation method of the image-text decorative plate, which comprises the following operation steps:
forming a layer of resin matrix on a transparent base material;
obtaining transfer paper attached with ink, wherein the ink forms a pattern on the transfer paper;
attaching the surface of the transfer printing paper with the printing ink to the surface of the resin matrix, baking and heating to enable the printing ink to generate thermal sublimation, softening the resin matrix, enabling the sublimed printing ink to permeate into the resin matrix to form a resin pattern layer, and removing the transfer printing paper;
and coating a coating layer by OPVD.
Optionally, the transparent substrate is a PC/PMMA composite board, and the glass transition temperature of the resin matrix is lower than the glass transition temperature of the transparent substrate;
and when the resin matrix is baked and heated, controlling the baking temperature to be higher than the glass transition temperature of the resin matrix and lower than the glass transition temperature of the transparent substrate.
Optionally, the glass transition temperature of the transparent substrate is 145-150 ℃, the glass transition temperature of the resin matrix is 120-130 ℃, the baking heating temperature is 130-140 ℃, and the baking time is 2-360 minutes.
Optionally, when the resin matrix is molded, a layer of UV resin matrix is formed on the surface of the transparent substrate through UV glue transfer printing, and UV irradiation treatment is carried out, wherein the exposure energy is 800-2And the time is 5-10 s.
Optionally, during baking and heating, the transfer paper is tightly attached to the surface of the resin matrix by providing 3KG-20KG of pressure through the pressure device.
Optionally, a resin pattern layer is formed, after the transfer paper is removed, a stereoscopic grating texture layer is formed on the surface of the resin pattern layer, and the coating layer is coated on the surface of the stereoscopic grating texture layer.
Optionally, an ink layer is printed on the surface of the coating layer.
According to the image-text decorative plate provided by the invention, the resin pattern layer and the coating layer are sequentially formed on the transparent base material, the printing ink molecules are permeated into the resin matrix, the image is exquisite on the image, the surface of the resin matrix is packaged by matching with the coating layer, the printing ink molecules can keep better stability in the resin matrix, and the requirements of radiation protection and durability are met.
Drawings
Fig. 1 is a layer structure schematic diagram of the image-text decorative plate provided by the invention.
The reference numbers in the drawings of the specification are as follows:
1. a transparent substrate; 2. a resin pattern layer; 3. coating a film layer; 4. and (4) an ink layer.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention provides an image-text decorative plate, including a transparent substrate 1, a resin pattern layer 2 and a coating layer 3, where the resin pattern layer 2 is located between the transparent substrate 1 and the coating layer 3, the resin pattern layer 2 includes a resin matrix and ink penetrating into the resin matrix, and the ink forms a pattern in the resin matrix.
The image-text decorative plate is characterized in that a resin pattern layer 2 and a coating layer 3 are sequentially formed on a transparent base material 1, ink molecules are permeated into a resin matrix, the image is fine and smooth on the pattern, the coating layer 3 is matched to package the surface of the resin matrix, the ink molecules can keep good stability in the resin matrix, and the requirements of radiation protection and durability are met.
In some embodiments, the transparent substrate 1 comprises one or more of PC board, PMMA board, PVC board, PS board, PC/PMMA composite board, and glass.
In some embodiments, the resin matrix is a UV resin.
Specifically, the UV resin is selected from one or more of acrylic resin, phenolic resin, epoxy resin and polyester resin.
In some embodiments, the transparent substrate 1 is a PC/PMMA composite plate, the glass transition temperature of the transparent substrate 1 is between 145 ℃ and 150 ℃, and the glass transition temperature of the resin matrix is between 120 ℃ and 130 ℃.
PMMA provides higher hardness and weather resistance, PC has better impact resistance and forming performance, a composite board formed by combining the PMMA and the PC has better material performance after surface hardening treatment and high-pressure treatment, the price of the raw materials of the PC/PMMA composite board is relatively lower, the design requirement of a future 5G antenna can be met, and the PC/PMMA composite board is particularly suitable for being used as a mobile phone cover plate of a middle-low-end mobile phone.
The transparent substrate 1 with the glass transition temperature of 145-150 ℃ can be selected from the PC/PMMA composite board, and when the heating temperature exceeds 145-150 ℃, the transparent substrate 1 deforms, so that the product is scrapped. In the preparation process of the image-text decorative plate, ink molecules need to permeate into the resin matrix, the ink molecules are heated and sublimated in a thermal sublimation mode, the resin matrix needs to be heated and softened synchronously at the moment, the specific temperature needs to be higher than the glass transition temperature of the resin matrix, so that the polymer chains of the resin matrix are unwound, and molecular chain gaps are generated, so that the sublimated ink molecules enter between the molecular chains, once the temperature is reduced, the molecular chains are closed, and the ink molecules are wrapped, so that coloring is realized.
In some embodiments, the resin matrix is formed by curing a UV glue, and the UV glue comprises the following components by weight:
30-60 parts of polyurethane acrylate, 10-50 parts of aliphatic polyurethane acrylate, 10-20 parts of polyfunctional monomer, 3-5 parts of photoinitiator and 5-10 parts of organic solvent.
In order to make the glass transition temperature of the resin matrix between 120 ℃ and 130 ℃ and simultaneously meet the requirements of high light transmittance and weather resistance of the resin matrix, the inventor modifies the existing UV cross-linked acrylic resin so that the glass transition temperature of the obtained acrylic resin after UV cross-linking can be between 120 ℃ and 130 ℃, wherein the glass transition temperature of the resin matrix is the result of the combined action of the main monomers, the solvent and the initiator, and the change of the selection and the proportion of any one of the raw materials of the polyurethane acrylate, the aliphatic polyurethane acrylate, the multifunctional monomer, the photoinitiator and the organic solvent leads the glass transition temperature of the obtained resin matrix to be out of the temperature range required by the embodiment.
In a more preferred embodiment, the UV glue further comprises the following components by weight:
0.1-1 part of leveling agent and 0.1-0.5 part of defoaming agent.
The leveling agent is added into the resin matrix, so that the leveling performance of the resin matrix is improved, and the resin matrix can cover the surface of the transparent base material 1.
The defoaming agent is added into the resin matrix, so that bubbles generated during raw material mixing or coating and transfer printing of the resin matrix can be reduced, and the light transmittance and uniformity of the resin matrix are improved.
Specifically, the multifunctional monomer is selected from one or more of trimethylolpropane triacrylate, 1, 6-hexanediol diacrylate and 1, 6-hexanediol methoxy monoacrylate; trimethylolpropane triacrylate is preferably used.
The photoinitiator is selected from one or more of 1-hydroxycyclohexyl phenyl ketone, diphenylethanone and isopropyl thioxanthone; preference is given to using 1-hydroxycyclohexylphenylketone.
The leveling agent is selected from one or more of BYK333, BYK346, BYK371, polymethylphenylsiloxane, polydimethylsiloxane and polyether polyester modified organic siloxane; BYK333 is preferably used.
The defoaming agent is selected from one or more of polyether modified silicon, GP type defoaming agent and GPE type defoaming agent; polyether modified silicon is preferably used.
In some embodiments, the pattern includes pure color, monochrome gradient, bi-color, and multi-color gradient or colored graphics or text.
In some embodiments, the image-text decorative plate further comprises a stereoscopic grating texture layer, and the stereoscopic grating texture layer is located between the resin pattern layer and the coating layer.
In this embodiment, the stereoscopic grating texture layer is formed on the resin pattern layer 2 after the resin pattern layer 2 is formed, the material of the stereoscopic grating texture layer is a UV resin grating texture without ink, a grating structure with a saw-toothed cross section is formed by a plurality of strip UV resins side by side, the stereoscopic grating texture layer can form a grating texture effect on the surface of the resin pattern layer 2 in a UV resin transfer printing mode, and the image-text decorative plate can show a gloss effect or a stereoscopic pattern effect after being matched with the coating layer 3 and the resin pattern layer 2 through arrangement of the grating texture.
In some embodiments, the coating layer 3 is an OPVD coating layer, which includes a dielectric layer and/or a metal layer;
the dielectric layer comprises Ti3O5、TiO、Ti2O3、Al2O3NbO and SiO2One or more of;
the metal layer includes one or more of gold, silver, copper, aluminum, indium, and tin.
And selecting the corresponding dielectric layer and/or metal layer according to the effect to be presented.
In some embodiments, the thickness of the transparent substrate 1 is 0.1 μm to 1cm, the thickness of the resin pattern layer 2 is 5 μm to 100 μm, the depth of the ink penetrating into the resin pattern layer is 5 μm to 20 μm, and the thickness of the plating layer 3 is 1nm to 600 nm.
In some embodiments, the graphic decoration plate further includes an ink layer 4, and the ink layer 4 is disposed on a surface of the film coating layer 3 facing away from the resin pattern layer 2.
In some embodiments, the ink layer 4 includes one or more of white ink and black ink.
Another embodiment of the present invention provides a method for preparing the image-text decorative plate, which comprises the following steps:
forming a layer of resin matrix on the transparent substrate 1;
obtaining transfer paper attached with ink, wherein the ink forms a pattern on the transfer paper;
attaching the surface of the transfer paper with the printing ink to the surface of the resin matrix, wherein the printing ink on the transfer paper is selected from thermal sublimation printing ink, baking and heating the printing ink to enable the printing ink to generate thermal sublimation, softening the resin matrix, enabling the sublimed printing ink to permeate into the resin matrix to form a resin pattern layer 2, and removing the transfer paper;
a coating layer 3 was applied by OPVD.
The OPVD is a non-conductive vacuum coating, and the operation method comprises the following steps: a deposited film is formed on a substrate by ion sputtering under vacuum conditions.
In some embodiments, the transparent substrate 1 is a PC/PMMA composite plate, and the glass transition temperature of the resin matrix is lower than that of the transparent substrate 1;
when the baking heating is carried out, the baking temperature is controlled to be higher than the glass transition temperature of the resin matrix and lower than the glass transition temperature of the transparent substrate 1.
In some embodiments, the glass transition temperature of the transparent substrate 1 is 145-150 ℃, the glass transition temperature of the resin matrix is 120-130 ℃, the baking heating temperature is 130-140 ℃, and the baking time is 2-360 minutes.
By controlling the baking temperature between 130 ℃ and 140 ℃, the resin matrix can be softened, the gaps are opened by molecular chains, the thermal sublimation coloring is realized, and the deformation of the transparent base material 1 is avoided.
In some embodiments, the transparent substrate 1 is subjected to degreasing cleaning before the resin matrix is molded.
In some embodiments, when the resin matrix is formed, a layer of UV resin matrix is formed on the surface of the transparent substrate 1 by UV glue transfer printing, and the UV irradiation treatment is carried out with exposure energy of 800-2And the time is 5-10 s.
The crosslinking degree of the UV glue can be effectively controlled through UV irradiation, so that the glass transition temperature of the resin matrix is indirectly controlled.
In some embodiments, the preparation method of the UV glue comprises the following operation steps:
completely dissolving 3-5 parts by weight of photoinitiator with 5-10 parts by weight of organic solvent to obtain a photoinitiator mixture for later use. And then, fully and uniformly stirring 30-60 parts by weight of polyurethane acrylate, 10-50 parts by weight of aliphatic polyurethane acrylate, 10-20 parts by weight of polyfunctional monomer, 0.1-1 part by weight of flatting agent, 0.1-0.5 part by weight of defoaming agent and the photoinitiator mixture in sequence under the condition of keeping out of the sun, and filtering to obtain the UV glue.
In some embodiments, the specific pattern is printed by thermal sublimation ink onto the transfer paper by digital printing.
In some embodiments, when the baking is heated, the transfer paper is pressed against the surface of the resin substrate by a pressure device for providing 3KG-20KG of pressure.
Applying 3KG-20KG pressure on the transfer paper, so that the transfer paper can be attached to the surface of the resin matrix tightly on one hand, and the transfer paper is prevented from falling off in the baking process; on the other hand, sublimed printing ink molecules can be promoted to permeate into molecular chains of the resin matrix, and escape and diffusion of the printing ink molecules are avoided, so that the patterns on the transfer printing paper can be completely transferred to the inside of the resin matrix, and the problem of pattern blurring caused by printing ink diffusion is avoided.
In some embodiments, after the resin pattern layer 2 is formed and the transfer paper is removed, a lenticular pattern layer is formed on the surface of the resin pattern layer 2, and the plating layer 3 is plated on the surface of the lenticular pattern layer.
The three-dimensional grating texture layer is UV resin grating texture without printing ink, can be arranged on the surface of the resin pattern layer 2 facing the coating layer 3 in a silk brush or transfer printing mode, and is cured and molded into a grating effect through ultraviolet rays.
In some embodiments, an ink layer 4 is printed on the surface of the coating layer 3.
Specifically, the ink layer 4 may be formed on the surface of the coating layer 3 by a screen printing method.
The present invention will be further illustrated by the following examples.
Example 1
The embodiment is used for explaining the preparation method of the image-text decorative plate disclosed by the invention, and the preparation method comprises the following operation processes:
1) synthesizing UV glue: 4 parts by weight of photoinitiator-184 was completely dissolved with 8 parts by weight of ethyl acetate solution to form a photoinitiator mixture for use. And then, 40 parts by weight of polyurethane acrylate, 30 parts by weight of aliphatic polyurethane acrylate, 10 parts by weight of monomer TMPTA (trimethylolpropane triacrylate), 0.6 part by weight of BYK333 leveling agent, 0.4 part by weight of defoamer polyether modified silicon defoamer and the photoinitiator mixture are fully and uniformly stirred under the condition of keeping out of the sun in sequence, and the UV glue is obtained after filtration.
2) The method comprises the steps of adopting a PC/PMMA composite board as a transparent base material, pretreating the PC/PMMA composite board, and cleaning oil stains on the surface of the PC/PMMA composite board by using an oil removing agent and water so as to keep the surface of the composite board clean. And then baked at 80 degrees celsius for 30 minutes.
3) Carrying out UV transfer printing on the surface of the PC/PMMA composite board by using synthesized UV glue in a dust-free workshop to form a UV resin matrix, and controlling the exposure energy at 800mj/cm2The time is 10 s.
4) And after the UV transfer printing is finished, covering a layer of protective film to prevent dust and foreign matters from polluting the UV resin matrix for later use.
5) And taking a piece of thermal sublimation paper with the thickness of about 0.09 mm, and printing the thermal sublimation printing ink on the thermal sublimation paper to form the required pictures and texts and colors.
6) And (3) taking the composite board with the UV resin matrix, and attaching the image-text positions on the thermal sublimation paper to the surface of the UV resin matrix in a matching manner.
7) The composite board is placed in an oven device, and 10kg of pressure is provided by a pressure device to enable the thermal sublimation paper to be tightly attached to the surface of the UV resin matrix of the composite board.
8) The baking temperature is controlled to be 130 ℃, and the baking time is controlled to be 20 minutes.
9) After baking, the pattern of the thermal sublimation transfer paper is remained in the UV resin matrix to form a resin pattern layer, the resin pattern layer is naturally cooled, the composite board is taken out, the thermal sublimation paper on the composite board is removed, the composite board is placed into an evaporation coating machine, and the composite board is evacuated to 3.0 x 10-3Pa, starting a film coating process, and electroplating a layer of 50nm silicon dioxide on the surface of the resin pattern layer by OPVDAnd a layer of 20nm indium metal.
10) And finally, screen-printing three times of white ink and two times of black ink on the surface of the OPVD coating layer to obtain the image-text decorative plate.
The following tests were carried out on the graphic decorative plate prepared in example 1:
solar radiation testing
1. The sample was placed in a solar radiation box, the ultraviolet lamp was turned on, and the ultraviolet illumination was continued for 96 hours.
2. After the irradiation was completed, the sample was taken out and returned to room temperature for half an hour, and then examined to see whether or not the color was changed.
The test results were as follows:
after 96 hours of UV irradiation, the color of the sample did not change.
Microscopic testing
The sample was placed in a microscope and observed for the presence of ink dots at a magnification of 100.
The test results were as follows:
the observation results showed that the ink dots could not be seen.
DSC differential scanning calorimetry
The UV resin matrix was peeled off and placed in a thermal analyzer and the TG temperature point on the curve was observed after the test was completed.
The test results were as follows:
the observations show that the TG point temperature of the UV resin matrix is around 126 degrees celsius.
From the test results, the image-text decorative plate obtained by the invention has better radiation resistance and weather resistance, in addition, the pattern effect is displayed finely from the appearance, and the UV resin matrix decorated by the thermal sublimation ink and the OPVD coating layer are matched to have unique visual appearance.
Example 2
The embodiment is used for explaining the preparation method of the image-text decorative plate disclosed by the invention, and the preparation method comprises the following operation processes:
1) synthesizing UV glue: 5 parts by weight of photoinitiator-184 was completely dissolved with 5 parts by weight of ethyl acetate solution to form a photoinitiator mixture for use. And then, sufficiently and uniformly stirring 33 parts by weight of polyurethane acrylate, 42 parts by weight of aliphatic polyurethane acrylate, 15 parts by weight of monomer TMPTA (trimethylolpropane triacrylate), 0.3 part by weight of BYK333 leveling agent, 0.4 part by weight of defoaming agent polyether modified silicon and the photoinitiator mixture in sequence under a dark condition, and filtering to obtain the UV glue.
The following tests were carried out on the graphic decorative plate prepared in example 2:
solar radiation testing
1. The sample was placed in a solar radiation box, the ultraviolet lamp was turned on, and the ultraviolet illumination was continued for 96 hours.
2. After the irradiation was completed, the sample was taken out and returned to room temperature for half an hour, and then examined to see whether or not the color was changed.
The test results were as follows:
after 96 hours of UV irradiation, the color of the sample did not change.
Microscopic testing
The sample was placed in a microscope and observed for the presence of ink dots at a magnification of 100.
The test results were as follows:
the observation results showed that the ink dots could not be seen.
DSC differential scanning calorimetry
The UV resin matrix was peeled off and placed in a thermal analyzer and the TG temperature point on the curve was observed after the test was completed.
The test results were as follows:
the observation results showed that the TG point temperature of the UV resin matrix was around 120 degrees celsius.
From the test results, the image-text decorative plate obtained by the invention has better radiation resistance and weather resistance, in addition, the pattern effect is displayed finely from the appearance, and the UV resin matrix decorated by the thermal sublimation ink and the OPVD coating layer are matched to have unique visual appearance.
Example 3
The embodiment is used for explaining the preparation method of the image-text decorative plate disclosed by the invention, and the preparation method comprises the following operation processes:
1) synthesizing UV glue: 3 parts by weight of photoinitiator-184 was completely dissolved with 7 parts by weight of ethyl acetate solution to form a photoinitiator mixture for use. And then, fully and uniformly stirring 57 parts by weight of polyurethane acrylate, 21 parts by weight of aliphatic polyurethane acrylate, 17 parts by weight of monomer TMPTA (trimethylolpropane triacrylate), 0.8 part by weight of BYK333 leveling agent, 0.2 part by weight of defoaming agent polyether modified silicon and the photoinitiator mixture in sequence under a dark condition, and filtering to obtain the UV glue.
The following tests were carried out on the graphic decorative plate prepared in example 3:
solar radiation testing
1. The sample was placed in a solar radiation box, the ultraviolet lamp was turned on, and the ultraviolet illumination was continued for 96 hours.
2. After the irradiation was completed, the sample was taken out and returned to room temperature for half an hour, and then examined to see whether or not the color was changed.
The test results were as follows:
after 96 hours of UV irradiation, the color of the sample did not change.
Microscopic testing
The sample was placed in a microscope and observed for the presence of ink dots at a magnification of 100.
The test results were as follows:
the observation results showed that the ink dots could not be seen.
DSC differential scanning calorimetry
The UV resin matrix was peeled off and placed in a thermal analyzer and the TG temperature point on the curve was observed after the test was completed.
The test results were as follows:
the observation results showed that the TG point temperature of the UV resin matrix was around 130 degrees celsius.
From the test results, the image-text decorative plate obtained by the invention has better radiation resistance and weather resistance, in addition, the pattern effect is displayed finely from the appearance, and the UV resin matrix decorated by the thermal sublimation ink and the OPVD coating layer are matched to have unique visual appearance.
Example 4
The embodiment is used for explaining the preparation method of the image-text decorative plate disclosed by the invention, and comprises most of the operation steps in the embodiment 1, and the difference is that:
step 9): after baking is finished, the pictures and texts of the thermal sublimation transfer paper are remained in the UV resin matrix to form a resin pattern layer, natural cooling is carried out, the composite board is taken out, and the thermal sublimation paper on the composite board is removed; applying UV glue distributed in a strip-shaped concave-convex texture on the surface of the resin pattern layer, and curing to form a three-dimensional grating texture layer; putting the composite board into an evaporation coating machine, and evacuating to 3.0 x 10-3Then, a plating process was started, and a layer of 50nm silicon dioxide and a layer of 20nm metallic indium were plated on the surface of the resin pattern layer by OPVD.
Compared with the embodiment 1, the image-text decorative plate obtained in the embodiment 4 has a certain grating effect on the visual effect of the embodiment 1.
Comparative example 1
The comparative example is used for comparative explanation of the preparation method of the image-text decorative plate disclosed by the invention, and comprises most of the operation processes of the example 1, and the differences are that:
the operations related to the thermal sublimation transfer paper in steps 5), 6), 7), 8) and 9) are not included.
Compared with the embodiment 1, the image-text decorative plate obtained in the comparative example 1 only has the coating layer and the ink layer, the coating layer shields most of the ink layer, no pattern is displayed, and the visual impression is poor.
Comparative example 2
The comparative example is used for comparative explanation of the preparation method of the image-text decorative plate disclosed by the invention, and comprises most of the operation processes of the example 1, and the differences are that:
the relevant operation of the coating procedure in step 9) is not included.
Compared with the embodiment 1, the image-text decorative plate obtained in the comparative example 2 only has the resin pattern layer and the ink layer, cannot show the metal effect, and is poor in visual impression.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (19)

1. The image-text decorative plate is characterized by comprising a transparent base material, a resin pattern layer and a coating layer, wherein the resin pattern layer is positioned between the transparent base material and the coating layer, the resin pattern layer comprises a resin matrix and ink permeating into the resin matrix, and the ink forms a pattern in the resin matrix.
2. The image-text decorative plate according to claim 1, wherein the transparent substrate comprises one or more of a PC plate, a PMMA plate, a PVC plate, a PS plate, a PC/PMMA composite plate, and glass.
3. The graphic decorative plate according to claim 1, wherein the resin matrix is UV resin.
4. The graphic decoration plate as claimed in claim 1, wherein the transparent substrate is a PC/PMMA composite plate, the glass transition temperature of the transparent substrate is between 145 ℃ and 150 ℃, and the glass transition temperature of the resin matrix is between 120 ℃ and 130 ℃.
5. The graphic decoration plate material as claimed in claim 1, wherein the resin matrix is formed by curing UV glue, and the UV glue comprises the following components by weight:
30-60 parts of polyurethane acrylate, 10-50 parts of aliphatic polyurethane acrylate, 10-20 parts of polyfunctional monomer, 3-5 parts of photoinitiator and 5-10 parts of organic solvent.
6. The graphic decoration plate as claimed in claim 5, wherein the UV glue further comprises the following components by weight:
0.1-1 part of leveling agent and 0.1-0.5 part of defoaming agent.
7. The graphic decorative plate according to claim 6, wherein the multifunctional monomer is selected from one or more of trimethylolpropane triacrylate, 1, 6-hexanediol diacrylate and 1, 6-hexanediol methoxy monoacrylate;
the photoinitiator is selected from one or more of 1-hydroxycyclohexyl phenyl ketone, diphenylethanone and isopropyl thioxanthone;
the leveling agent is selected from one or more of BYK333, BYK346, BYK371, polymethylphenylsiloxane, polydimethylsiloxane and polyether polyester modified organic siloxane;
the defoaming agent is selected from one or more of polyether modified silicon, GP type defoaming agent and GPE type defoaming agent.
8. The graphic decorative plate according to claim 1, wherein the pattern comprises pure color, monochrome gradient, two-color and multi-color gradient or colored graphics or characters.
9. The plate as claimed in claim 1, wherein the plate further comprises a lenticular pattern layer between the resin pattern layer and the coating layer.
10. The image-text decorative plate as claimed in claim 1, wherein the coating layer is an OPVD coating layer, and the OPVD coating layer comprises a dielectric layer and/or a metal layer;
the dielectric layer comprises Ti3O5、TiO、Ti2O3、Al2O3NbO and SiO2One or more of;
the metal layer includes one or more of gold, silver, copper, aluminum, indium, and tin.
11. The graphic decorative plate as claimed in claim 1, wherein the transparent substrate has a thickness of 0.1 μm to 1cm, the resin pattern layer has a thickness of 5 μm to 100 μm, the ink has a depth of 5 μm to 20 μm into the resin pattern layer, and the coating layer has a thickness of 1nm to 600 nm.
12. The graphic decoration plate of claim 1, further comprising an ink layer disposed on a surface of the coating layer facing away from the resin pattern layer.
13. The method for preparing the image-text decorative plate as claimed in any one of claims 1 to 12, which is characterized by comprising the following operation steps:
forming a layer of resin matrix on a transparent base material;
obtaining transfer paper attached with ink, wherein the ink forms a pattern on the transfer paper;
attaching the surface of the transfer printing paper with the printing ink to the surface of the resin matrix, baking and heating to enable the printing ink to generate thermal sublimation, softening the resin matrix, enabling the sublimed printing ink to permeate into the resin matrix to form a resin pattern layer, and removing the transfer printing paper;
and coating a coating layer by OPVD.
14. The method for preparing the image-text decorative plate according to claim 13, wherein the transparent substrate is a PC/PMMA composite plate, and the glass transition temperature of the resin matrix is lower than that of the transparent substrate;
and when the resin matrix is baked and heated, controlling the baking temperature to be higher than the glass transition temperature of the resin matrix and lower than the glass transition temperature of the transparent substrate.
15. The method for preparing an image-text decorative plate as claimed in claim 14, wherein the glass transition temperature of the transparent substrate is 145-150 ℃, the glass transition temperature of the resin matrix is 120-130 ℃, the baking heating temperature is 130-140 ℃, and the baking time is 2-360 minutes.
16. The method for preparing an image-text decorative plate as claimed in claim 13, wherein during the molding of the resin matrix, a layer of UV resin matrix is formed on the surface of the transparent substrate by UV glue transfer printing, and is treated by UV irradiation with exposure energy of 800-1200mj/cm2And the time is 5-10 s.
17. The method for producing an image-text decorative plate according to claim 13, wherein the transfer paper is pressed against the surface of the resin substrate by applying a pressure of 3KG to 20KG by a pressing means during baking heating.
18. The method for preparing an image-text decorative plate according to claim 13, wherein a resin pattern layer is formed, after removing a transfer paper, a lenticular pattern layer is formed on the surface of the resin pattern layer, and the surface of the lenticular pattern layer is coated with the coating layer.
19. The method for preparing an image-text decorative plate as claimed in claim 13, wherein an ink layer is printed on the surface of the coating layer.
CN201910561573.4A 2019-06-26 2019-06-26 Graphic decoration plate and preparation method thereof Pending CN112140794A (en)

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Country Link
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05215910A (en) * 1991-10-29 1993-08-27 Dening Yang Printing glass light beam lattice decoration board
CN1339361A (en) * 2001-07-13 2002-03-13 刘宗信 Method for producing glass with pattern
CN101239558A (en) * 2008-03-11 2008-08-13 常州市武进晨光金属涂料有限公司 Glass plate member equipped with decorative pattern and method for forming pattern on the glass plate member body
CN206686483U (en) * 2017-05-16 2017-11-28 昇印光电（昆山）股份有限公司 A kind of electronic equipment cover plate and electronic equipment
CN107517552A (en) * 2017-08-04 2017-12-26 捷开通讯(深圳)有限公司 A kind of diaphragm for cover plate and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05215910A (en) * 1991-10-29 1993-08-27 Dening Yang Printing glass light beam lattice decoration board
CN1339361A (en) * 2001-07-13 2002-03-13 刘宗信 Method for producing glass with pattern
CN101239558A (en) * 2008-03-11 2008-08-13 常州市武进晨光金属涂料有限公司 Glass plate member equipped with decorative pattern and method for forming pattern on the glass plate member body
CN206686483U (en) * 2017-05-16 2017-11-28 昇印光电（昆山）股份有限公司 A kind of electronic equipment cover plate and electronic equipment
CN107517552A (en) * 2017-08-04 2017-12-26 捷开通讯(深圳)有限公司 A kind of diaphragm for cover plate and preparation method thereof

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