CN114103538A

CN114103538A - Coating film with prefabricated structure, powder and preparation method thereof

Info

Publication number: CN114103538A
Application number: CN202111195122.7A
Authority: CN
Inventors: 李可峰
Original assignee: Weidali Industry Chibi Co ltd
Current assignee: Weidali Technology Co.,Ltd.
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-03-01
Anticipated expiration: 2041-10-12
Also published as: CN114103538B

Abstract

The invention relates to a coating film and powder with a prefabricated structure and a preparation method thereof. The preparation method of the coating film comprises the following steps: providing a base material and a micro-nano texture template with a micro-nano structure; applying transfer printing UV glue on the base material; applying the micro-nano texture template on transfer printing UV glue through UV transfer printing, preparing a transition glue layer through UV curing, removing the micro-nano texture template, and preparing an intermediate; preparing a transition separation layer by profiling deposition of a functional material on the surface of a base material with a micro-nano structure, or directly preparing a micro-nano texture intermediate transition separation layer by adopting the functional material, and preparing a coating by profiling deposition of a coating material on the transition separation layer; or preparing a coating by copying and depositing a coating material on the surface of the base material with the micro-nano structure. The method has the advantages of simple operation, controllable micro-nano structure appearance, low cost, long effect, large-scale application and wide application prospect.

Description

Coating film with prefabricated structure, powder and preparation method thereof

Technical Field

The invention relates to the technical field of coating, in particular to a coating with a prefabricated structure, powder and a preparation method thereof.

Background

The plating is a technique for forming a decorative film or a functional film on the surface of an object, and mainly includes evaporation plating, sputtering plating, and ion plating. In the production process of mobile phones, digital cameras, computers, watches, spectacle frames, hardware, ornaments and the like, patterns including trademarks, arts, figures or characters in any shapes or unique places need to be marked by special optical characteristics formed on the surfaces of the products in a film coating mode in order to increase the beauty degree or anti-counterfeiting of the appearance of the products.

However, at present, the film layer or powder for decorative and anti-counterfeiting ink is mainly planar or flaky, lacks of structural combination effect, and has simple type and lack of uniqueness.

Disclosure of Invention

Based on the technical scheme, the invention aims to provide a coating film and powder with a prefabricated structure and a preparation method thereof.

The technical scheme is as follows:

a preparation method of a coating film with a prefabricated structure comprises the following steps:

providing a substrate and a micro-nano texture template with a micro-nano three-dimensional structure;

applying a transfer UV glue on the substrate;

applying the micro-nano texture template on the transfer printing UV glue through UV transfer printing, preparing a transition glue layer through UV curing, removing the micro-nano texture template, and preparing an intermediate body with a three-dimensional structure of micro-nano size;

and (3) preparing a coating by adopting a coating material through shape-imitating deposition on the surface of the intermediate body with the micro-nano three-dimensional structure.

In one embodiment, before the coating is prepared, a transition separation layer is prepared on the surface of the intermediate body with the three-dimensional structure with the micro-nano size by adopting a functional material in a copying deposition mode, and then the coating is prepared on the transition separation layer by adopting a coating material in a copying deposition mode.

In one embodiment, the number of layers of the plating layers is more than or equal to 2, the number of layers of the transition separation layers is more than or equal to 2, and the plating layers and the transition separation layers are alternately arranged.

In one embodiment, the functional material is selected from materials with water contact angles of 80-130 degrees, or water-soluble materials, or oil-soluble materials, or vibration separation materials, or thermal volatilization materials, or thermal decomposition materials, or hydrolysis materials, or oil decomposition materials.

In one embodiment, the method for preparing a coating film having a preformed structure is characterized in that the material having a contact angle of 80 ° to 130 ° is selected from fluorine-containing compounds; the water-soluble material is selected from organic water-soluble substances or inorganic water-soluble substances, or a mixture of the two substances; the oil-soluble material is selected from oil-soluble resins; the thermally volatile material is selected from low boiling point organic materials; the thermal decomposition material is selected from easily decomposed organic materials; the hydrolytic material is selected from organic water hydrolysate or inorganic water hydrolysate or a mixture of the organic water hydrolysate and the inorganic water hydrolysate; or the oleolytic material is selected from oleolytic resin material.

In one embodiment, the coating material used to prepare the coating is selected from one or more of the group consisting of alkali metals, alkaline earth metals, transition elements, main group metals, lanthanides, actinides, and nitrides, carbides, hydrides, oxides, oxynitrides, carbonitrides, and sulfides of these metals;

or the coating material adopted for preparing the coating is selected from one or more of Si, P, Ge, AS, Sb, B, Te and C and the nitrides, carbides, hydrides, oxides, oxynitrides, carbonitrides and sulfides of the nonmetals.

In one embodiment, the coating material used to prepare the coating is selected from one or more of Al, Cr, Ti, Au, AG, Cu, W, V, Ni, Li, Na, K, Ca, Mo, Co, Mn, Ga, Rb, Cd, Ba, Cs, Pt, Ce, Sn, Zn, Ta, Zr, Nb, Mg, In and Y, and nitrides, carbides, hydrides, oxides, oxynitrides, carbonitrides, and sulfides of these metals.

In one embodiment, the method for preparing a plating film having a preformed structure further includes the step of separating the plating layer from the intermediate body.

In one embodiment, the plating is separated from the intermediate by aqueous phase separation, oil phase separation, thermal separation or vibrational separation.

In one embodiment, the micro-nano three-dimensional stereo structure is in an ordered arrangement structure and/or a disordered arrangement structure;

the ordered arrangement structure is at least one of a lattice three-dimensional structure and a linear array three-dimensional structure.

In one embodiment, the micro-nano three-dimensional stereo structure is pyramid-shaped, or cylinder-shaped (square column, cylinder, prism, etc.), or spherical cap-shaped, or honeycomb-like-shaped, or polygonal body array, or line body array, or column line body array, or block body array, or a combination of the above arrays, or irregular morphology body array.

In one embodiment, the conformal deposition is by chemical liquid deposition, chemical vapor deposition, magnetron sputtering, evaporation coating, or DLC.

In one embodiment, the main material of the transfer UV glue comprises at least one of water-soluble resin, oil-soluble resin, water-soluble inorganic substance or mixture, epoxy acrylate, amino acrylate, polyether resin, acrylic resin, unsaturated polyester, alcohol compound, cationic resin, epoxy resin, silicone resin and other UV light-induced resin. In addition, the transfer UV glue also comprises an initiator and an auxiliary agent.

The present invention also provides a plating film having a preformed structure produced according to the method for producing a plating film having a preformed structure as described above.

The invention also provides a preparation method of the powder with the prefabricated structure, which comprises the following steps:

preparing a plating film having a pre-fabricated structure according to the method for preparing a plating film having a pre-fabricated structure as described above;

and crushing the coating film with the prefabricated structure to prepare powder with the prefabricated structure.

In one embodiment, the pulverization treatment is performed by vibration pulverization, mill pulverization, or air-impact pulverization.

In one embodiment, after the crushing treatment, the method further comprises the step of classifying and screening the powder with the prefabricated structure.

The invention has the following beneficial effects:

the preparation method of the coating film with the prefabricated structure mainly comprises the steps of preparing the coating film by UV transfer printing and profiling deposition, and has the advantages of simplicity and easiness in operation, material saving, controllable micro-nano structure appearance, capability of preparing products with special appearance or special light effect, low cost, long acting and capability of being applied in large batch.

Drawings

FIG. 1 is a schematic structural diagram and flow diagram of the direct preparation of a coating on a substrate surface according to one embodiment of the present invention;

FIG. 2 is a schematic structural diagram and flow diagram of the process for preparing a coating after a transitional separation layer is first prepared on a substrate surface, according to one embodiment of the present invention;

FIG. 3 is a schematic structural diagram and a flowchart illustrating the preparation of a transition separation layer and the preparation of a plating layer, wherein the plating layer and the transition separation layer are alternately arranged according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram and a flowchart illustrating a process of preparing a transition separation layer and then preparing a plating layer, wherein the plating layer and the transition separation layer are not arranged alternately according to an embodiment of the present invention;

FIG. 5 is a schematic representation of a security ink of example 1 of the present invention;

FIG. 6 is a schematic of a color-changing ink of example 2 of the present invention;

FIG. 7 is a schematic representation of a high gloss silver color shifting ink of example 3 of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following specific embodiments and the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that in the description of the present invention, for the terms of orientation, there are terms such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and should not be construed as limiting the specific scope of protection of the present invention.

In describing positional relationships, unless otherwise specified, when an element such as a layer, film or substrate is referred to as being "on" another layer, it can be directly on the other layer or intervening layers may also be present. Further, when a layer is referred to as being "under" another layer, it can be directly under, or one or more intervening layers may also be present. It will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.

Where the terms "comprising," "having," and "including" are used herein, it is intended to cover a non-exclusive inclusion, as another element may be added, unless an explicit limitation is used, such as "only," "consisting of … …," etc.

In the present invention, a plurality of times means at least one time.

Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.

Furthermore, the drawings are not 1: 1 and the relative dimensions of the various elements in the figures are drawn for illustrative purposes only to facilitate understanding of the invention and are not necessarily drawn to scale, and are not to scale.

In the invention, the micro-nano size means 0.1 nm-1 mm.

In the invention, profiling deposition refers to depositing a film layer on the surface of the micro-nano texture in an undulated manner, and the contact surface of the film layer and the micro-nano topography is similar to the micro-nano topography so as to form a coating layer similar to the micro-nano topography.

In the present invention, the intermediate refers to the whole comprising the substrate and the transition glue layer.

In the invention, the thickness refers to the thickness of the micro-nano texture and the deposition thickness of the coating.

In the invention, the micro-nano structure, the micro-nano texture and the three-dimensional structure of the micro-nano size have the same meaning.

The invention provides a preparation method of a coating film with a prefabricated structure, which comprises the following steps:

s10, providing a substrate and a micro-nano texture template with a micro-nano three-dimensional structure;

s20, applying transfer printing UV glue on the base material;

s30, applying the micro-nano texture template on the transfer UV glue through UV transfer printing;

s40, preparing a transition adhesive layer through UV curing, removing the micro-nano texture template, and preparing an intermediate with a micro-nano three-dimensional structure;

s50, preparing a coating by copying and depositing a coating material on the surface of the intermediate with the micro-nano three-dimensional structure.

In one embodiment, the method for preparing a coating film having a pre-fabricated structure further includes a step of separating the coating layer from the substrate intermediate having a micro-nano-sized three-dimensional structure.

The preparation method of the coating film with the prefabricated structure is specifically described as follows:

s10, providing a substrate and a micro-nano texture template with a micro-nano three-dimensional structure

In one embodiment, the base material is a resinous organic material, an inorganic material, or a mixture of the resinous organic material and the inorganic material.

Further, the organic material is selected from at least one of polyethylene terephthalate, polycarbonate, polypropylene and polyethylene; the inorganic material is selected from at least one of glass, sapphire and quartz.

In one embodiment, the micro-nano three-dimensional stereo structure is in an ordered arrangement structure and/or a disordered arrangement structure; the ordered arrangement structure is at least one of a lattice three-dimensional structure and a linear array three-dimensional structure. Further, the three-dimensional structure of the micro-nano size is pyramid type, or column type (square column, round column, prism, etc.), or spherical crown type, or honeycomb-like type, or polygonal body array, or line body array, or column line array, or block body array, or combination array thereof, or irregular shape array. By the method, single or multiple combined micro-nano structure coatings such as a cylinder, a cone, a spherical crown, a polygonal body structure and the like can be obtained.

In the invention, the three-dimensional structures with the micro-nano sizes can be distributed in different modes by adopting different shape structures, so that different requirements of customers can be met.

In one embodiment, the size of the single micro-nano three-dimensional structure is 0.1 nm-1 mm.

S20: application of transfer UV glue to a substrate

In one embodiment, the main material of the transfer UV paste includes at least one of water-soluble resin, oil-soluble resin, water-soluble inorganic substance or mixture, epoxy acrylate, amino acrylate, polyether resin, acrylic resin, unsaturated polyester, alcohol compound, cationic resin, epoxy resin, silicone resin, and UV photo-initiation resin. In addition, the transfer UV glue further comprises an initiator.

S30: and applying the micro-nano texture template on the transfer printing UV glue through UV transfer printing.

The specific description is as follows: dispensing glue at one side of a substrate surface area needing micro-nano texture manufacturing, enabling transfer printing UV glue to be linear, placing a micro-nano texture template with a micro-nano three-dimensional structure on the transfer printing UV glue, enabling the micro-nano texture surface to be in contact with the glue, enabling the micro-nano texture template with the micro-nano three-dimensional structure to be aligned with the substrate area needing micro-nano texture manufacturing, applying roller pressure on the micro-nano texture template with the micro-nano three-dimensional structure, rolling from one side of the dispensing glue to the opposite side, enabling the corresponding gap between the micro-nano texture surface of the template and the substrate surface at the corresponding position to be completely filled with the transfer printing UV glue, enabling the thickness of the filling transfer printing UV glue layer to be determined by the applied pressure and the transfer printing UV glue viscosity to obtain the required thickness, and fixing the glue layer and the micro-nano texture appearance through UV curing.

S40: preparing a transition adhesive layer through UV curing, removing the micro-nano texture template, and preparing an intermediate with a micro-nano three-dimensional structure.

The UV curing includes: and (3) irradiating by adopting a UV parallel light source or a UV non-parallel light source or a UV laser light source to solidify and adhere the transfer printing UV glue on the surface of the base material.

And initiating the transfer printing UV glue to react by adopting a UV light source, wherein the UV light source can be parallel light or non-parallel light. The UV light changes the transfer printing UV glue from a liquid state to a solid state, so that the adhesion of the glue layer and the interface morphology of the glue layer boundary are fixed. If the substrate is in a UV light transmitting state, UV light can irradiate the transfer printing UV glue from one side of the substrate; the substrate is in a non-UV-transparent state, the micro-nano texture template with the three-dimensional structure of micro-nano size is required to be in a UV-transparent state, and UV light is required to irradiate and transfer the UV glue through one side of the micro-nano texture template with the three-dimensional structure of micro-nano size; if the substrate and the texture mold can transmit UV light, the UV light can be irradiated from two sides or one side of the substrate and the micro-nano texture template with the three-dimensional structure of the micro-nano size.

In one embodiment, the UV cure operating parameters include: the full UV wave band non-parallel light source has the energy of 100 mJ-1000 mJ, the curing time of 1 s-20 s, and the total thickness of the transition adhesive layer is 100 nm-4000 nm. The glue is changed from liquid state to solid state, so as to fix the interface morphology of the adhesion of the glue layer and the boundary of the glue layer.

S50: and preparing a coating by copying and depositing a coating material on the surface of the intermediate with the micro-nano three-dimensional structure.

It is understood that the coating may be a single component coating or a multi-component alternating stack coating.

In one embodiment, the coating is formed by conformal deposition, such as solution deposition, chemical deposition, physical deposition, evaporation coating, or DLC. Such as: and (3) gasifying and ionizing the coating material by adopting a vacuum evaporation coating method and utilizing heat energy provided by electrons, and finally depositing the coating material on the micro-nano texture layer on the surface of the base material to form a coating with micro-nano textures.

Fig. 1 is a structural schematic diagram and a flow chart of directly preparing a plating layer on the surface of an intermediate micro-nano structure according to an embodiment of the present invention, where 101 denotes an intermediate having a micro-nano three-dimensional structure, and 102 denotes a plating layer.

It can be understood that a transition separation layer is arranged on the surface of the micro-nano structure (namely, the transition glue layer) of the intermediate body and between the coating layers, and the subsequent separation of the intermediate body and the coating layers is facilitated. Therefore, in one embodiment, S50 includes:

s501: and preparing a transition separation layer on the surface of the intermediate body with the micro-nano three-dimensional structure by copying and depositing a functional material. It is understood that part of the functional material may also be used directly as a coating material.

S502: and preparing a coating on the transition separation layer by profiling deposition of a coating material.

In one embodiment, the functional material is selected from materials with contact angles of 80-130 degrees, or water-soluble materials, or oil-soluble materials, or vibration separation materials, or thermal volatilization materials, or thermal decomposition materials, or hydrolysis materials, or oil decomposition materials.

In one embodiment, the material with the contact angle of 80-130 degrees is selected from fluorine-containing materials; the water-soluble material is selected from organic water-soluble substances or inorganic water-soluble substances, or a mixture of the two substances; the oil-soluble material is selected from oil-soluble resins; the thermally volatile material is selected from low boiling point material organic materials; the thermal decomposition material is selected from easily decomposed organic materials; the hydrolytic material is selected from organic water hydrolysate or inorganic water hydrolysate or a mixture of the organic water hydrolysate and the inorganic water hydrolysate; or the oleolytic material is selected from oleolytic resin material.

S60: separating the plating layer from the intermediate having a micro-nano-sized three-dimensional structure

The separation means includes at least one of water phase separation, oil phase separation, thermal separation, peeling and vibration separation. The combination of multiple methods can separate the plating layer from the intermediate with the three-dimensional structure of micro-nano size more quickly and/or better without damaging the micro-nano structure of the substrate and the plating layer.

It can be understood that if the transition separation layer is included between the plating layer and the intermediate having the micro-nano three-dimensional structure, the manner of separating the plating layer from the intermediate having the micro-nano three-dimensional structure may also be water phase separation, oil phase separation, thermal separation or vibration separation. It will be understood that the separation of the intermediate and the coating will generally correspond to the selection of the functional material, for example, if a water-soluble transition separating layer is prepared using a water-soluble material, then the substrate containing the coating is subsequently placed in water, the water-soluble transition separating layer dissolves and the intermediate and coating separate. If a material with a large contact angle is adopted, the intermediate and the coating can be directly stripped.

Fig. 2 is a schematic structural diagram and a flowchart of preparing a transition separation layer and then preparing a plating layer according to an embodiment of the present invention, where 201 denotes an intermediate having a micro-nano-sized three-dimensional structure, 202 denotes the transition separation layer, and 203 denotes the plating layer.

It is understood that, in the present invention, the number of layers of the plating layer is 1 or more, and is not limited to 1 layer; the number of layers of the transition separation layer is not less than 0, but not limited to 0 or 1.

In one embodiment, the number of layers of the coating is more than or equal to 2, and the number of layers of the transition separation layer is 0 or 1.

(1) The number of the layers of the coating is more than or equal to 2, the number of the layers of the transition separation layer is 0, and the preparation method of the coating film with the prefabricated structure further comprises the following steps;

and preparing a new coating by profiling deposition on the surface of the coating prepared by the previous profiling deposition by adopting the coating material. That is, multiple layers (which may be the same material, multiple material layers, or mixed material layers) may be deposited to form a multi-layer composite coating.

(2) The number of layers of the plating layer is more than or equal to 2, the number of layers of the transition separation layer is 1, and understandably, the transition separation layer can be arranged between the surface of the intermediate body with the micro-nano three-dimensional structure and the first plating layer, and can also be arranged between the plating layer and the plating layer.

In one embodiment, the number of layers of the coating is more than or equal to 2, and the number of layers of the transition separation layer is more than or equal to 2. Furthermore, from the viewpoint of efficiency and cost, the finally deposited layer is a plating layer, and the preparation method of the prefabricated structure plating film further comprises the following steps;

and preparing a new transition separation layer on the surface of the coating prepared by the previous copying deposition by adopting the functional material, and preparing a new coating on the new transition separation layer by adopting the coating material through copying deposition.

Furthermore, the number of layers of the plating layers is more than or equal to 2, the number of layers of the transition separation layers is more than or equal to 2, and the plating layers and the transition separation layers are alternately arranged. For such an embodiment, the steps of preparing a new transition separation layer by performing profiling deposition on the surface of the coating prepared by the previous profiling deposition by using the functional material and preparing a new coating by performing profiling deposition on the new transition separation layer by using the coating material are repeated at least once.

Fig. 3 is a schematic structural diagram and a flowchart of preparing a plating layer after preparing a transition separation layer, and alternately arranging the plating layer and the transition separation layer according to an embodiment of the present invention, where 301 denotes an intermediate having a three-dimensional stereo structure with micro-nano dimensions, 302 denotes a first transition separation layer, 303 denotes a first plating layer, 304 denotes a second transition separation layer, and 305 denotes a second plating layer.

In one embodiment, the number of layers of the plating layer is more than or equal to 3, the number of layers of the transition separation layer is more than or equal to 2, and the plating layer and the transition separation layer are not arranged alternately. For the embodiment, the method comprises the steps of manufacturing an intermediate body with a three-dimensional structure of a micro-nano size by adopting a functional material, depositing a coating on the surface of the micro-nano texture of the intermediate body in a copying manner, preparing a new transition separation layer on the coating, preparing a new coating on the new transition separation layer by adopting the coating material in a copying manner, and then manufacturing a new transition separation layer and a new coating on the transition separation layer.

Fig. 4 is a schematic structural diagram and a flowchart of preparing a plating layer after preparing a transition separation layer, where the plating layer and the transition separation layer are not arranged alternately, in which 401 denotes an intermediate having a three-dimensional spatial structure with a micro-nano size on a surface, 402 denotes a first transition separation layer, 403 denotes a first plating layer, 404 denotes a second plating layer, 405 denotes a second transition separation layer, and 406 denotes a third plating layer, according to an embodiment of the present invention.

The method comprises the steps of 1) obtaining structural powder with uniform size and structure by depositing a coating on the surface of a prefabricated micro-nano structure template, and the structural powder can be used as a preparation method of gap-consistent functional powder. 2) If a method for forming a surface deposition coating of a prefabricated micro-nano structure template on the surface of a roll film and a roll-to-roll coating deposition method are adopted, powder with a micro-nano structure can be obtained efficiently, and materials are saved. 3) And a preparation method of the special micro-nano structure functional additive can be obtained.

By the method, the powder with single or multiple combined micro-nano structures such as a cylinder, a cone, a spherical crown, a polygonal body structure and the like can be obtained, and the method has wide application prospect.

The method for preparing the single or combined powder of the special micro-nano structure silicon, silicon oxide or carbon can be obtained by the invention. Or a manufacturing method for obtaining the aluminum powder with the special micro-nano structure. Or the method for preparing the alternating combined powder of the silicon oxide, the titanium oxide or the zirconium oxide or the niobium oxide or the aluminum oxide with the special micro-nano structure. Or the micro-nano structure powder is prepared by combining one or more of silicon oxide, titanium oxide, zirconium oxide, niobium oxide, aluminum oxide and the like with one or more of metal aluminum, chromium, titanium and the like in a special micro-nano structure.

In addition, in the invention, a material suitable for anti-counterfeiting ink is selected, and a special anti-counterfeiting ink powder can be obtained by a method of depositing a coating on the surface of a prefabricated micro-nano structure template. Or selecting a material suitable for being used as special decorative ink, and obtaining the special decorative ink powder by a method of depositing a coating on the surface of the prefabricated micro-nano structure template.

If the powder with the prefabricated structure is added into corresponding solvents, corresponding resins, auxiliaries and additives, products such as printing ink, paint, baking varnish, fired materials and the like with corresponding purposes such as decoration, anti-counterfeiting and functions can be obtained.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Example 1

A sapphire sheet with a three-dimensional convex frustum-shaped array micro-nano texture template with the diameter of 1 mu m and the depth of 300nm on the surface is used as a transfer printing mold, the texture surface has an anti-sticking effect, and the surface is not bonded with the cured transfer printing UV adhesive;

and (3) point-transferring UV glue lines on one side of the edge of the outer surface of the base material of the PC board, placing a transfer mold on the glue lines and the base material, wherein the transfer UV glue is arranged towards one side of the mold texture, and the texture area of the mold corresponds to the texture area to be manufactured on the base material. And applying roller pressure on the outer surface of the transfer printing mold, and rolling from one side of the dispensing line to the corresponding side to completely fill the transfer printing UV glue between the texture surface of the transfer printing mold and the surface of the base material. The used transfer printing UV adhesive is made of fluorine-and silicon-containing acrylic UV curing resin, the transfer printing UV adhesive layer is irradiated for 6s through a full-waveband UV area light source with energy of 300mJ, the micro-nano texture template is removed, and the intermediate with the micro-nano three-dimensional structure is prepared through curing, wherein the thickness of a transition adhesive layer in the intermediate is 8 mu m.

And (3) preparing a water-soluble organic alcohol compound serving as a transition separation layer on the surface of the micro-nano texture layer (namely the transition adhesive layer) of the intermediate, wherein the thickness of the water-soluble organic alcohol compound is 100 nm.

By vacuum evaporation coating method, at 4 x 10^-3Depositing the total thickness of 600nm on the surface of the transition separation layer on the micro-nano texture in a Pa vacuum state, and laminatingTiO with the thickness of 100nm \190nm \20nm \190nm \100nm₂\SiO₂\Cr\SiO₂\TiO₂The composite plating layer of (3);

repeating the above cycle for 3 times to alternately prepare the transition separation layer and the composite coating.

And (3) placing the plated substrate in a water tank, dissolving and collecting the plating layer under the action of ultrasonic, and forming powder through vibration grinding. After the powder is separated, adding the powder into auxiliary materials such as epoxy resin, ether ester and the like to prepare the anti-counterfeiting ink. The schematic diagram is shown in fig. 5.

Example 2

A glass sheet with a three-dimensional concave columnar array micro-nano texture template with the diameter of 3 mu m and the depth of 600nm on the surface is used as a transfer printing mold, the texture surface has an anti-sticking effect, and the glass sheet is not adhered to the transfer printing UV glue after curing.

And (3) point-transferring UV glue lines on one side of the edge of the outer surface of the base material of the PET film, placing a transfer mold on the glue lines and the base material, wherein the transfer UV glue is arranged on one side of the mold texture, and the texture area of the mold corresponds to the texture area of the base material to be manufactured. And applying roller pressure on the outer surface of the transfer printing mold, and rolling from one side of the dispensing line to the corresponding side to completely fill the UV glue between the texture surface of the transfer printing mold and the surface of the base material. The used transfer printing UV glue material is water soluble organic alcohol compound which can be UV cured. Irradiating the transfer UV adhesive layer for 9s through a full-waveband UV area light source with energy of 600mJ, removing the micro-nano texture template, and curing to prepare an intermediate body with a micro-nano three-dimensional structure, wherein the thickness of a transition adhesive layer in the intermediate body is 7 microns.

Adopting a magnetron sputtering coating method, at 3 x 10^-3In a vacuum state of Pa, the sputtering power of the silicon target and the titanium target is 10kW, the ionization source power is 4kW, and the oxygen flow is 400sccm in the film forming process. Depositing TiO with the total thickness of 300nm and the lamination thickness of 100nm \100nm \100nm respectively on the surface of the micro-nano texture layer (namely the transition adhesive layer) of the intermediate₂\SiO₂\TiO₂And (5) composite plating.

And (3) placing the plated substrate in a water tank, dissolving and collecting the plating layer under the action of ultrasonic, and forming powder through vibration grinding. Separating and adding into the assistant materials such as acrylic resin, ether esters and the like to prepare the color-changing ink. The schematic diagram is shown in fig. 6.

Example 3

A glass sheet with a concave pyramid array micro-nano texture template with a pyramid 5 mu m in surface and a depth of 900nm is used as a transfer printing mold, the texture surface has an anti-sticking effect, and the glass sheet is not adhered to the transfer printing UV glue after curing.

And (3) point-transferring UV glue lines on one side of the edge of the outer surface of the composite board substrate, placing a transfer mold on the glue lines and the substrate, wherein the transfer UV glue is directed towards one side of the mold texture, and the mold texture area corresponds to the texture area to be manufactured on the substrate. And applying roller pressure on the outer surface of the transfer printing mold, and rolling from one side of the dispensing line to the corresponding side to completely fill the UV glue between the texture surface of the transfer printing mold and the surface of the base material. The used transfer printing UV adhesive is made of organic silicon UV curing resin, the UV adhesive layer is irradiated for 8s through a full-waveband UV area light source with energy of 900mJ, the micro-nano texture template is removed, and the intermediate with the micro-nano three-dimensional structure is prepared through curing, wherein the thickness of a transition adhesive layer in the intermediate is 12 microns.

And (3) preparing a water-soluble organic alcohol ether compound on the surface of the micro-nano texture layer (namely the transition adhesive layer) of the intermediate, wherein the water-soluble organic alcohol ether compound is used as a transition separation layer and has the thickness of 80 nm.

By vacuum evaporation coating method, at 4 x 10^-3Under the vacuum state of Pa, the total deposition thickness is 200nm, and the lamination thickness is SiO of 60nm \80nm \60nm₂\Al\SiO₂The composite plating layer of (1).

Repeating the above cycle for making transition separation layer and composite coating layer for 12 times, and alternately making transition separation layer and composite coating layer.

And (3) placing the plated substrate in a water tank, dissolving and collecting the plating layer under the action of ultrasonic, and forming powder through vibration grinding. Separating and adding into auxiliary materials such as acrylic resin, ether esters and the like to prepare the high-brightness silver color-changing ink. The schematic diagram is shown in fig. 7.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present description should be considered as being described in the present specification.

The above-mentioned embodiments only express several embodiments of the present invention, so as to understand the technical solutions of the present invention specifically and in detail, but not to be understood as the limitation of the protection scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. It should be understood that the technical solutions provided by the present invention, which are obtained by logical analysis, reasoning or limited experiments by those skilled in the art, are within the scope of the appended claims. Therefore, the protection scope of the patent of the present invention shall be subject to the content of the appended claims, and the description and the attached drawings can be used for explaining the content of the claims.

Claims

1. A preparation method of a coating film with a prefabricated structure is characterized by comprising the following steps:

applying a transfer UV glue on the substrate;

and preparing a coating by copying and depositing a coating material on the surface of the intermediate with the micro-nano three-dimensional structure.

2. The method of preparing a plating film having a pre-fabricated structure according to claim 1, wherein a transition separation layer is prepared by performing a profiling deposition of a functional material on a surface of the intermediate having a micro-nano-sized three-dimensional structure before the plating layer is prepared, and the plating layer is prepared by performing a profiling deposition of a plating material on the transition separation layer.

3. The method according to claim 2, wherein the number of the plating layers is not less than 2, the number of the transition separation layers is not less than 2, and the plating layers and the transition separation layers are alternately arranged.

4. The method of preparing a plating film having a preformed structure according to claim 2, wherein the functional material is selected from a material having a water contact angle of 80 ° to 130 °, a water-soluble material, an oil-soluble material, a vibration separation material, a thermally volatile material, a thermally decomposable material, a hydrolyzed material, and an oil-decomposable material.

5. The method for producing a plating film having a preformed structure according to any of claims 1 to 4, wherein the plating layer is produced using a plating material selected from one or more of alkali metals, alkaline earth metals, transition elements, main group metals, lanthanides, actinides, and nitrides, carbides, hydrides, oxides, oxynitrides, carbonitrides, and sulfides of these metals;

6. The method of claim 5, wherein the coating material used for preparing the coating layer is selected from one or more of Al, Cr, Ti, Au, AG, Cu, W, V, Ni, Li, Na, K, Ca, Mo, Co, Mn, Ga, Rb, Cd, Ba, Cs, Pt, Ce, Sn, Zn, Ta, Zr, Nb, Mg, In and Y, and nitrides, carbides, hydrides, oxides, oxynitrides, carbonitrides and sulfides of these metals.

7. The method for producing a plating film having a preformed structure according to claim 5, further comprising a step of separating the plating layer from the intermediate body.

8. The method for producing a plating film having a preformed structure according to claim 7, wherein the plating layer is separated from the intermediate by at least one of water phase separation, oil phase separation, thermal separation, peeling and vibration separation.

9. The method according to claim 5, wherein the micro-nano-sized three-dimensional structure is in an ordered arrangement structure and/or a disordered arrangement structure;

10. The method for preparing a plating film having a preformed structure according to claim 9,

the profiling deposition mode is chemical liquid phase deposition, chemical vapor deposition, magnetron sputtering, evaporation coating or DLC.

11. The method according to claim 5, wherein the transfer UV paste comprises at least one of epoxy acrylate, amino acrylate, polyether resin, acrylic resin, unsaturated polyester, alcohol compound, cationic resin, epoxy resin, and silicone resin.

12. A coating film having a preformed structure, which is produced by the method for producing a coating film having a preformed structure according to any one of claims 1 to 11.

13. A preparation method of powder with a prefabricated structure is characterized by comprising the following steps:

the method of producing a plating film having a pre-fabricated structure according to any one of claims 1 to 11, producing a plating film having a pre-fabricated structure;

14. The method of producing a powder having a preformed structure according to claim 13, wherein the pulverization treatment is vibration pulverization, grinding pulverization or air impact pulverization.

15. The method according to claim 13 or 14, further comprising a step of classifying and screening the powder having the preformed structure after the pulverization treatment.