CN115497402A

CN115497402A - Three-dimensional light and shadow color decoration texture

Info

Publication number: CN115497402A
Application number: CN202211138997.8A
Authority: CN
Inventors: 陈林森; 刘晓宁; 朱昊枢; 朱鸣; 王挺; 杨颖�; 左志成; 韩春芳; 任家安; 季旭东; 张瑾; 王国栋
Original assignee: SVG Tech Group Co Ltd
Current assignee: SVG Tech Group Co Ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-12-20
Also published as: CN115527467A; CN114639326A; CN114639326B; CN115497403A

Abstract

The invention discloses a three-dimensional light and shadow colorful decorative texture. Comprises a base layer, a first adhesive layer and a first composite layer which are arranged from top to bottom in sequence; the first composite layer comprises a first film layer and a first microstructure layer; the first microstructure layer comprises a first precise microstructure main body layer, a first coating layer and a first printing ink layer, the first coating layer is a conformal structure imitating the surface shape of the precise microstructure main body layer, and the printing ink is filled in a groove of the first coating layer; or the first composite layer comprises a first film layer, a first micro-structure layer and a first coating layer, the first micro-structure layer is provided with a precise microstructure which comprises a plurality of micro-nano sub-structures, the micro-nano sub-structures are provided with grooves, and the grooves are filled with printing ink; the first thin film layer is fixedly arranged on the base layer through a first adhesive layer. According to the invention, the decorative texture is transferred to the base material by using a micro-nano lithography technology, and the base material is provided with a precise microstructure, so that the effects of three-dimensional, shadow and color are presented; and the glare effect of the texture can be achieved.

Description

Three-dimensional light and shadow color decoration texture

The invention relates to a precise microstructure presenting a three-dimensional relief image, a preparation method thereof and a divisional application of the application, namely 2022.05.20, 202210548852.9.

Technical Field

The invention relates to the field of decorative textures, in particular to a three-dimensional light and shadow colorful decorative texture.

Background

In the existing fine publications such as magazines and product catalogues, packaging printing, securities such as bank notes and stamps, and printing of special fields such as decorative materials, such as mobile phone decorations, automobile interiors, top covers of daily chemicals, surfaces of household appliances, the ink is transferred to the surface of a printing stock by a screen printing method or a gravure printing method. In the silk-screen printing, the shade of the color is realized through the difference of the dot size. In gravure printing, the image-text part of the precise intaglio is depressed, the degree of depression varies with the gradation of the image, and the blank part of the precise intaglio is raised and is on the same plane. The shade layer of the printed picture is determined by the size and the depth of the pit, if the pit is deeper, more ink is contained, and the ink layer left on the printed object after stamping is thicker; conversely, if the depression is shallow, less ink is contained and a thinner layer of ink remains on the substrate after imprinting. The precision intaglio plate for intaglio printing is composed of pits corresponding to the image and text of the original and the surface of the precision intaglio plate.

The existing gravure technology is limited by precision, the size of a pit dot is larger than 50 mu m, and the image fineness is not high; the relief sense of the image is reflected by the color depth of the printing ink, and the printing ink has limitation and cannot reflect real stereoscopic impression; and because only one expression mode of color shade is adopted, the expression effect is single.

Therefore, there is a need for an improved solution to overcome the above problems.

Disclosure of Invention

The invention aims to provide a three-dimensional light and shadow color decoration texture which can present three-dimensional, light and shadow and color effects.

According to one aspect of the invention, the invention provides a three-dimensional shadow color decorative texture, which comprises a base layer, a first adhesive layer and a first composite layer which are sequentially arranged from top to bottom; the first composite layer comprises a first film layer and a first microstructure layer; the first film layer is fixedly arranged on the base layer through a first adhesive layer, the first microstructure layer is provided with a precise microstructure, and the precise microstructure comprises a first precise microstructure main body layer, a first coating layer and a first ink layer;

a plurality of micro-nano structures are arranged on the first precise microstructure main body layer, and grooves are formed in the micro-nano structures; the period of the micro-nano sub-structure is arranged according to a preset rule, including Fresnel rule arrangement or equal-width splitting projection rule arrangement; the micro-nano sub-structure can also comprise at least one inclined plane, and the inclined plane is used for reflecting light rays to generate a light and shadow effect; the ratio of the width of the groove on each micro-nano sub-structure to the period of the micro-nano sub-structure is K, and the ratios K of different micro-nano sub-structures are the same;

the first coating layer is of a conformal structure imitating the surface shape of the precise microstructure main body layer, a groove is formed in the first coating layer, the groove in the first coating layer corresponds to the groove in the first precise microstructure main body layer one to one, and printing ink is filled in the groove in the first coating layer.

In one embodiment, the substrate is a transparent flat glass or composite plate;

the first adhesive layer is an OCA optical adhesive layer;

the first film layer is a PET film, the thickness range of the first film layer is 25-200 mu m, and the first microstructure layer is a UV adhesive layer; the first ink layer is nano ink, and the nano ink is scraped and printed by a metal scraper and filled into the groove of the micro-nano structure; the first film coating layer is made of materials including a brightness enhancement film, an antireflection film, siO2 and indium, and the thickness range of the first film coating layer is 80nm-260nm.

In one embodiment, the first thin film layer has a thickness in a range of 50 μm to 100 μm;

the thickness of the first coating layer is 140nm, so as to realize the functions of brightening, permeability increasing and medium color,

the first coating layer is prepared by adopting an evaporation or vacuum sputtering process;

in one embodiment, a second bondline and a second composite layer are also included; the second composite layer comprises a second film layer and a second microstructure layer which are sequentially arranged from top to bottom; the second film layer is fixedly arranged on the first composite layer through a second adhesive layer, and the second microstructure layer is provided with a precise microstructure, a laser micro-nano structure or a sub-silver micro-nano structure.

In one embodiment, the second microstructure layer is provided with a precise microstructure, and the precise microstructure on the second microstructure layer comprises a second precise microstructure body layer, a second coating layer and a second ink layer. The second coating layer is a conformal structure imitating the surface shape of the second precise microstructure main body layer, the grooves of the second coating layer correspond to the grooves of the second precise microstructure main body layer one by one, and the second printing ink layer is filled in the grooves on the second coating layer.

In one embodiment, the second adhesive layer is an OCA optical adhesive layer;

the second film layer is a PET film, and the thickness range of the second film layer is 25-200 μm;

the second ink layer is nano ink, and the thickness range of the second ink layer is 10-15 mu m;

the second coating layer is made of materials such as a brightening film, an antireflection film, siO2, indium and the like, and the thickness range of the second coating layer is 80nm-260nm.

In one embodiment, the composite material further comprises a second composite layer, and the second composite layer is provided with a precise microstructure, a laser micro-nano structure or a sub-silver micro-nano structure.

In one embodiment, the second composite layer comprises a second microstructure layer comprising a second micro-nano structure body layer, a second coating layer and a second ink layer; the second coating layer is a conformal structure imitating the surface shape of the second micro-nano structure main body layer, grooves in the second coating layer correspond to grooves of micro-nano structures in the second micro-nano structure main body layer in a one-to-one mode, the second ink layer is filled in the grooves in the second coating layer, and the second micro-nano structure main body layer is arranged on the first composite layer.

In one embodiment, the second ink layer is a nano ink, and the thickness of the second ink layer is in a range of 10 μm to 15 μm;

the materials of the second coating layer comprise materials such as a brightness enhancement film, an antireflection film, siO2, indium and the like, and the thickness range of the second coating layer is 80nm-260nm.

According to another aspect of the present invention, the present invention provides a three-dimensional light and shadow color decoration texture, comprising a base layer, a first glue layer and a first composite layer, which are sequentially arranged from top to bottom; the first composite layer comprises a first film layer, a first microstructure layer and a first coating layer which are sequentially arranged from top to bottom;

the first microstructure layer is provided with a precise microstructure which comprises a plurality of micro-nano sub-structures, the micro-nano sub-structures are provided with grooves, and the grooves are filled with printing ink; the period of the micro-nano sub-structure is arranged according to a preset rule, including Fresnel rule arrangement or equal-width splitting projection rule arrangement; the micro-nano sub-structure can also comprise at least one inclined plane, and the inclined plane is used for reflecting light rays to generate a light and shadow effect; the ratio of the width of the groove on each micro-nano sub-structure to the period of the micro-nano sub-structure is K, and the ratios K of different micro-nano sub-structures are the same;

the first thin film layer is fixedly arranged on the base layer through a first adhesive layer.

In one embodiment, the coating further comprises a silk-screen layer, wherein the silk-screen layer is arranged on the first coating layer;

the silk-screen layer is an ink layer, and the thickness range of the silk-screen layer is 10-15 mu m.

In one embodiment, the composite film further comprises a second adhesive layer and a second composite layer, the second composite layer comprises a second film layer and a second microstructure layer which are sequentially arranged from top to bottom, the second microstructure layer is provided with a precision microstructure, a laser micro-nano structure or a sub-silver micro-nano structure, and the second film layer is fixedly arranged on the first composite layer through the second adhesive layer.

In one embodiment, the precise microstructure on the second microstructure layer comprises a second precise microstructure body layer, a second coating layer and a second ink layer; the second precise microstructure main body layer is provided with a plurality of micro-nano substructures, the micro-nano substructures are provided with grooves, or the second precise microstructure main body layer is provided with a plurality of grooves and platform areas, the second coating layer is a conformal structure imitating the surface shape of the second precise microstructure main body layer, the grooves on the second coating layer correspond to the grooves on the second precise microstructure main body layer one by one, and the second ink layer is filled in the grooves on the second coating layer.

In one embodiment, the second adhesive layer is an OCA optical adhesive layer;

The beneficial effects of the invention include: the decorative texture is formed by transferring the micro-nano texture on the base material by using a micro-nano photoetching technology, and the base material is provided with a precise microstructure, so that the effects of three-dimensional, shadow and color are presented. More soft than traditional gradual change colour, the vision sense organ is more comfortable, and can possess the dazzling light effect of texture, can prepare more kinds of effects, and the application is wider, like mobile phone decoration, automotive interior, cosmetics top cap, household electrical appliances surface texture etc.. The problem of in the prior art pattern color relatively monotonous, can only realize the superimposed gradual change effect of 2-3 colours, can't polychrome change is solved.

In the precise microstructure, the period of the micro-nano sub-structure in the precise microstructure is arranged according to a Fresnel rule or an equal-width cutting projection rule, and the like to present the arrangement of a three-dimensional relief effect, so that the precise microstructure presents the three-dimensional relief effect; the micro-nano structure comprises an inclined plane and shows a dynamic optical effect; the grooves are formed in the precise microstructures, and ink is filled in the grooves, so that a colored effect is achieved; filling different printing inks in a regional positioning manner or filling different printing inks in multiple layers to show a colorful effect; finally, combining three effects of color, dynamic shadow and three-dimensional relief on the precise microstructure; the width of the groove is less than 30 mu m, and micro-nano ink is filled in the groove, so that the groove is finer and finer, and the displayed image is finer and finer.

The preparation method of the precise microstructure comprises the steps of arranging a structure opposite to an expected micro precise structure on a template, carrying out transfer printing, cleaning and curing to obtain the ultra-precise structure, and simultaneously, only allowing printing ink to exist in grooves of the micro nano substructure instead of covering the precise microstructure, wherein the used amount of the printing ink is small, so that the three-dimensional relief effect and the light and shadow effect of the micro nano substructure are maintained, and the color is more gorgeous. After the method is used for cleaning, the cleaned ink can be collected and reused, and the method is low-carbon and environment-friendly.

According to the other preparation method of the precise microstructure, the ink is attached to the template through the anilox roller, and the ink is filled in the grooves while the micro-nano substructure is transferred, so that the method is simpler and more convenient in steps, less in used ink amount, low in carbon and environment-friendly; and the ink is also directionally filled in the groove, so that the three-dimensional relief effect and the light and shadow effect of the micro-nano structure are kept, and the color is more gorgeous.

Drawings

FIG. 1 is a schematic cross-sectional view of a precision microstructure provided in the present invention in one embodiment;

FIG. 2 is a scanning electron micrograph of one embodiment of a precision microstructure in accordance with the present invention;

FIG. 3a is a schematic diagram of a method for arranging a plurality of micro-nano-structures according to an embodiment of the present invention;

FIG. 3b is a schematic cross-sectional view of a plurality of micro/nano sub-structures obtained by the arrangement method shown in FIG. 3 a;

FIG. 4a is a first example of one form of a micro-nano substructure of the present invention;

FIG. 4b is a second example of one form of a micro-nano substructure of the present invention;

FIG. 4c is a third example of one form of a micro-nano substructure of the present invention;

FIG. 4d shows a fourth example of a form of a micro-nano substructure according to the present invention;

FIG. 5a is a first example of another form of a micro-nano substructure in accordance with the present invention;

FIG. 5b is a second example of another form of a micro-nano substructure in accordance with the present invention;

FIG. 5c is a third example of another form of a micro-nano substructure in accordance with the present invention;

FIG. 5d is a fourth illustration of another form of a micro-nano substructure of the present invention; fig. 6 is another example of a micro-nano substructure in the present invention, wherein the period is S and the groove width is W;

FIG. 7 is an example of different areas filled with different colored inks in accordance with the present invention;

FIG. 8 is a schematic view of one embodiment of a precision microstructure including a coating layer according to the present invention;

FIG. 9 is a schematic cross-sectional view of a precision microstructure provided by the present invention in another embodiment;

FIG. 10a is a schematic diagram of another embodiment of a method for arranging a plurality of micro-nano-structures according to the present invention;

FIG. 10b is a schematic cross-sectional view of a plurality of micro/nano sub-structures obtained by the arrangement method shown in FIG. 10 a;

FIG. 11 is a schematic view of another embodiment of a precision microstructure including a coating layer according to the present invention;

FIG. 12 is an exemplary diagram of a two layer precision microstructure co-directional stack;

FIG. 13 is an exemplary diagram of two opposing layers of precision microstructures stacked together;

FIG. 14 is a schematic flow chart diagram illustrating one embodiment of a method for making a precision microstructure exhibiting a relief image according to the present invention;

FIG. 15 is a process schematic of the manufacturing process of FIG. 14;

FIG. 16 is a schematic flow chart diagram illustrating a method for fabricating a precision microstructure exhibiting a relief image according to one embodiment of the present invention;

FIG. 17 is a schematic view of a manufacturing system according to one embodiment of the invention;

FIG. 18 is a schematic structural diagram of a hot stamping film according to the present invention;

FIG. 19 is a schematic diagram of the structure of the stamping film ink and the positioning marks in FIG. 18;

FIG. 20 is a schematic view of the structure of a transfer film according to the present invention;

FIG. 21 is a schematic view of the structure of the composite paper of the present invention;

FIG. 22 is a schematic view showing the structure of a transfer sheet according to the present invention;

FIG. 23 is a schematic structural view of an embodiment of the security card of the present invention;

FIG. 24 is a schematic structural view of another embodiment of the security card of the present invention;

FIG. 25 is a schematic view of a first embodiment of a decorative texture shown in the present invention;

FIG. 26 is a schematic view of a second embodiment of a decorative texture of the present invention;

FIG. 27 is a schematic view of a third embodiment of a decorative texture of the present invention;

FIG. 28 is a schematic view of a fourth embodiment of a decorative texture of the present invention;

FIG. 29 is a schematic structural view of a fifth embodiment of a decorative texture illustrated in the present invention;

FIG. 30 is a diagram illustrating the effect of the decorative texture of the present invention in one embodiment.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

As shown in fig. 1, the precision microstructure 1 includes a plurality of micro-nano sub-structures 2, and the periods of the plurality of micro-nano sub-structures 2 are arranged according to a preset rule and used for presenting a three-dimensional relief effect; the micro-nano sub-structure 2 is provided with at least one groove 3, the groove comprises at least two opposite side walls (a first side wall 31 and a second side wall 32) and a bottom 33, and ink 4 is arranged in the groove and used for presenting a color effect.

FIG. 2 is a scanning electron micrograph of one embodiment of the present invention. It can be seen that the fine microstructure 1 is a continuous line. In other embodiments, the fine microstructure 1 may be a discontinuous line.

Fig. 3a is an embodiment of a method for arranging a plurality of micro-nano sub-structures 2 according to the present invention, taking an example that a final presented three-dimensional relief effect is a spherical surface, taking a height of a spherical model as L, layering the spherical surface into equal height layers according to a fresnel rule, wherein each layer has a height of L1, and performing projection to obtain continuous annular lines, each annular line is a micro-nano sub-structure 2, and a plurality of micro-nano sub-structures 2 are arranged on a plane according to the fresnel rule to present the three-dimensional relief effect, fig. 3b is a sectional view of the micro-nano sub-structure 2 in the embodiment, wherein a cross section of the micro-nano sub-structure in the embodiment is arc to present a dynamic light and shadow effect, grooves 3 are provided on the micro-nano sub-structures 2, and ink 4 is filled in the grooves 3 to present colors. Therefore, the precise microstructure presents the effects of colored dynamic light shadow and three-dimensional relief, and can be arranged according to the equal-width slitting projection rule and the like in other embodiments to present the three-dimensional relief effect.

In other embodiments, the stereoscopic relief effect of other images may be presented, for example, stereoscopic images of animals, people, plants, etc., and the invention is not limited thereto.

In some embodiments, as shown in fig. 4a to 4d, the micro-nano sub-structure 2 includes an inclined surface, which can reflect light, thereby presenting a dynamic light and shadow effect. In the figure 4a, the micro-nano sub-structure 2 comprises two inclined surfaces, the cross section of the micro-nano sub-structure is arc-shaped, in the figure 4b, the micro-nano sub-structure 2 comprises one inclined surface, the cross section of the micro-nano sub-structure is triangular, in the figure 4c, the micro-nano sub-structure 2 comprises one inclined surface, the cross section of the micro-nano sub-structure is arc-shaped, and in the figure 4d, the micro-nano sub-structure 2 comprises one inclined surface, and the cross section of the micro-nano sub-structure is step-shaped; the groove 3 is arranged in the middle of the inclined surface of the micro-nano sub-structure 2, ink is filled in the groove 3, and the bottom of the groove 3 and the bottom of the micro-nano sub-structure 2 are not on the same plane.

In other embodiments, as shown in fig. 5a to 5d, the groove 3 is disposed at the edge of the inclined surface of the micro-nano structure 2, the groove 3 is filled with ink, and the bottom of the groove 3 and the bottom of the micro-nano structure 2 are on the same plane.

In the embodiments shown in fig. 4a-4d and fig. 5a-5d, the width of the grooves 3 on the different micro-nano-sub-structures 2 is the same, the width of the grooves 3 ranges from 50nm to 30 μm, and the depth of the grooves 3 ranges from 50nm to 50 μm; the ink has a particle size smaller than the width of the grooves 3, the particle size of the ink being in the range of 10nm to 15 μm.

In some embodiments, as shown in fig. 6, a period of the micro-nano sub-structure 2 is S, a width of the groove on the micro-nano sub-structure 2 is W, and the periods S of different micro-nano sub-structures 2 may be different, but a ratio K of the width W of the groove 3 on different micro-nano sub-structures 2 to the period S of the micro-nano sub-structure 2 is the same.

In some embodiments, as shown in fig. 7, the grooves 3 of different micro-nano-sub-structures 2 are filled with different inks. The grooves 3 of all the micro-nano sub-structures 2 in the area A are filled with the same ink, and the grooves 3 of all the micro-nano sub-structures 2 in the area B are filled with the same ink, so that a colorful effect is achieved. In other embodiments there may be more regions, filled with more different colors.

In some embodiments, as shown in fig. 8, conformal coating layers 401 are disposed on the plurality of micro-nano sub-structures, grooves on the coating layers 401 correspond to grooves on the micro-nano sub-structures 2 one to one, and the ink 4 is filled in the grooves on the coating layers.

As shown in fig. 9, a precision microstructure 1 includes a plurality of grooves 3 and a platform region 5 connected thereto, wherein the periods of the plurality of grooves 3 are arranged according to a predetermined rule for presenting a three-dimensional relief effect; the recess 3 comprises at least two opposite side walls (a first side wall 31, a second side wall 32) and a bottom 33, said recess 3 being provided with ink 4 for presenting a color effect. The grooves 3 are continuous and/or discontinuous linear; the width W of the groove 3 ranges from 50nm to 30 μm, and the depth h of the groove 3 ranges from 50nm to 50 μm; the particle size of the ink is smaller than the width of the groove 3, and the particle size range of the ink is 10nm-15 mu m; the width of the different grooves 3 is the same, or the ratio of the width W of the grooves 3 to the period S of the grooves 3 is the same for different grooves 3; the same ink or different inks can be filled in different grooves 3, so that a colorful effect is achieved.

In some embodiments, the period of the grooves 3 is S, the width of the grooves 3 is W, the ratio of the width W of the grooves 3 to the period S of the grooves 3 is K, and the value of K is the same for different grooves 3.

Fig. 10a is an embodiment of a method for arranging a plurality of grooves 3 of a precision microstructure 1 according to the present invention, taking the finally presented three-dimensional relief effect as an example of a spherical surface, where the height of the spherical surface is L, the spherical surface is layered at the same height according to the fresnel law, the layered height is L1, and the spherical surface is projected to obtain continuous annular lines, each annular line is a groove 3, fig. 10b is a cross-sectional view of the precision microstructure 1 in the embodiment, where the precision microstructure 1 includes a plurality of grooves 3 and land areas 5 connected thereto, and the grooves 3 are filled with ink 4 to present colors. Therefore, the precise microstructure presents the effect of colored three-dimensional relief; in other embodiments, the three-dimensional relief can be arranged according to the equal-width cutting projection rule and the like. In other embodiments, the stereoscopic relief effect of other images may be presented, for example, stereoscopic images of animals, people, plants, etc., and the invention is not limited thereto.

In some embodiments, as shown in fig. 11, a conformal plating layer 401 is disposed on the plurality of grooves and land areas 5, and the grooves of the plating layer 401 are filled with ink 4.

In some embodiments, as shown in fig. 12, two layers of precise microstructures 1 are included, the two layers of precise microstructures are stacked in the same direction, and the grooves of the two layers of precise microstructures are filled with different inks to exhibit a color effect.

In some embodiments, as shown in fig. 13, the microstructure comprises two layers of precise microstructures 1, the two layers of precise microstructures are oppositely stacked, and the grooves of the two layers of precise microstructures are filled with different inks to exhibit a color effect; in other embodiments, more layers of fine microstructures can be included, such as, but not limited to, the fine microstructures shown in fig. 4a-4d, fig. 5a-5d, and fig. 9.

When two or more layers of precise microstructures are stacked, at least one intermediate layer can be arranged between the layers, and the intermediate layer can be a substrate layer, an adhesive layer, a dielectric layer or a plating layer, and the like, but not limited to the above.

The precise microstructure can be an integral body comprising a polymer film substrate or a single layer, and the material of the precise microstructure is curable material such as UV glue, thermal curing glue and the like.

The precise microstructure can be covered with a protective layer to protect the precise microstructure from abrasion in use.

Fig. 14 is a flow chart illustrating a method for manufacturing a precision microstructure exhibiting a three-dimensional relief image according to an embodiment of the present invention. Fig. 15 is a process schematic of the manufacturing method in fig. 14.

With reference to fig. 14 and 15, a method for preparing a precise microstructure exhibiting a three-dimensional relief image includes:

s1, providing a template 110, wherein the template 110 is provided with a reverse microstructure;

s2: providing a substrate, transferring the reverse microstructure on the template 110 to the substrate, and curing;

s3: filling the transferred side of the substrate with ink 130;

s4: cleaning one side of the substrate filled with the ink to obtain a precise microstructure 1 filled with the ink; wherein in S1, the microstructure of the inverse plate on the stencil 110 corresponds to the microstructure unevenness expected to be unfilled with ink, specifically, the convex portion on the inverse plate corresponds to the groove portion on the microstructure,

the groove portions on the counter plate correspond to the raised portions on the microstructures.

The reverse microstructure and the precision microstructure 1 in fig. 15 are only schematic, and the actual structure of the precision microstructure 1 is shown in fig. 4a to 4d, fig. 5a to 5d and fig. 9, but not limited thereto.

In an embodiment, between step S2 and step S3, conformal coating is further performed to obtain a coated layer, and the grooves on the coated layer correspond to the grooves on the precision microstructure 1 one to one.

In one embodiment, the precision microstructures can be transferred to the substrate all at once, and then filled with an ink on the transferred side to appear as a color; in other embodiments, different inks may be filled in regions to present a colored effect.

In one embodiment, after step S4, i.e. curing, S2-S4 may be repeated on the side where the precise microstructure is imprinted or on the side away from the precise microstructure, and then the precise microstructure is transferred, filled with ink, cleaned, and the ink in the groove of the precise microstructure is retained, thereby forming the preparation of the multi-layer precise microstructure. Different inks are filled in different layers, so that a colorful effect is realized.

In another embodiment, after step S4, that is, after curing, the precise microstructure may be transferred and cured on the side of the substrate away from the precise microstructure, the ink is filled, the ink is cleaned, and the ink in the groove on the precise microstructure is retained, so as to form a double-sided precise microstructure. The opposite side is filled with different inks, thereby exhibiting a colored effect.

The base material is a curable material such as UV glue coated on the polymer film or a UV glue layer, a thermal curing glue and the like.

The method for preparing the stencil 110 includes designing a three-dimensional relief image; preprocessing the image according to Fresnel rules or equal-height slitting projection to obtain a periodic gray image; providing a photoetching offset plate, photoetching the periodic gray level image to obtain a micro-nano substructure with an inclined surface on the photoetching offset plate, and photoetching a groove on the micro-nano substructure; the resulting plate is replicated to obtain a reticle 110.

In another embodiment, a method of preparing the stencil 110 includes: designing a three-dimensional relief image; preprocessing the image according to Fresnel rules or equal-height slitting projection to obtain a periodic gray image; taking a certain width of the periodic gray image as a part to be photoetched in one period, and taking the rest part in the period as a non-photoetching part to obtain a periodic binary image; providing a photoetching offset plate, photoetching the periodic binary image, and obtaining a groove on the photoetching offset plate; the resulting plate is replicated to obtain a reticle 110.

Fig. 16 is a flow chart illustrating a method for fabricating a precision microstructure exhibiting a relief image according to an embodiment of the present invention. Fig. 17 is a schematic view of a manufacturing system of the present invention, which includes an impression roller 210, a stencil 220, a substrate 230, an anilox roller 240, an ink tank 250, and a curing machine 260.

With reference to fig. 16 and 17, a method for preparing a precise microstructure exhibiting a three-dimensional relief image includes:

s11: providing a stencil 220 having an inverse precision microstructure;

s21: attaching ink to the stencil 220 using an anilox roller 240;

s31: providing a substrate 230, and transferring the reverse precise microstructure with the ink attached to the stencil 220 onto the surface of the substrate 230;

s41: curing;

in S11, the inverse microstructure on the template 220 corresponds to the microstructure unevenness expected to be not filled with ink, specifically, the convex portion on the inverse corresponds to the groove portion on the microstructure, and the groove portion on the inverse corresponds to the convex portion on the microstructure.

The stencil 220 is made of at least one of metal, glass, rubber, plastic or photosensitive resin, and has a precise microstructure, and the stencil 220 shown in fig. 15 is only schematic.

At least one and more anilox rollers 240, the anilox rollers 240 adhering ink in an ink reservoir 250 to the stencil 220.

The stencil 220 transfers ink and structures to the surface of the substrate 230 under pressure from the impression roller 210.

The curing machine 260 cures the transferred substrate 230, and the precise microstructure 1 filled with the ink is obtained.

The inverse microstructure on the stencil 220 in fig. 17 is merely schematic.

The preparation system is only one of various systems utilized by the method of the present invention, and is not limited thereto.

In one embodiment, between step S11 and step S21, a conformal coating is further performed.

In other embodiments, steps S11 to S41 may be repeated, so as to realize the positioning and transfer of the precise microstructure of different inks on one layer, or the preparation of a double-sided precise microstructure, or the preparation of multiple layers of precise microstructures, and to present a monochrome or color effect.

The method for preparing the template 220 comprises the following steps: designing a three-dimensional relief image; preprocessing the image according to Fresnel rules or equal-height slitting projection to obtain a periodic gray image; providing a photoetching offset plate, photoetching the periodic gray level image to obtain a micro-nano substructure with an inclined surface on the photoetching offset plate, and photoetching a groove on the micro-nano substructure; the resulting plate was replicated to obtain a reticle 220.

In another embodiment, a method of preparing the stencil 220 includes: designing a three-dimensional relief image; preprocessing the image according to Fresnel rules or equal-height slitting projection to obtain a periodic gray image; taking a certain width of the periodic gray image as a part to be photoetched in one period, and taking the rest part in the period as a non-photoetching part to obtain a periodic binary image; providing a photoetching offset plate, photoetching the periodic binary image, and obtaining a groove on the photoetching offset plate; the resulting plate is replicated to obtain a reticle 220.

According to another aspect of the present invention, the precise microstructure is mainly applied to packaging films, packaging papers, decorative textures, clothes, anti-counterfeit cards or plastic banknotes, and the like. Specific applications for the precision microstructures are as follows. Of course, the precise structure pattern, material, thickness, or other parameters including those described above, etc. may be the same or different for different applications.

Thermoprinting film

Referring to fig. 18, fig. 18 is a schematic structural view of a hot stamping film according to an embodiment of the present invention, and the hot stamping film includes a base film layer 6, a release layer 7, a precision micro-structure layer 8, a dielectric layer 9, and a hot melt adhesive layer 10, which are sequentially disposed from top to bottom.

In one embodiment, the precise microstructure layer 8 is provided with a precise microstructure on the surface far away from the release layer 7, the precise microstructure comprises a plurality of micro-nano substructures, and the periods of the plurality of micro-nano substructures are arranged according to a preset rule and are used for presenting a three-dimensional relief effect; the micro-nano structure is provided with at least one groove, the groove comprises at least two opposite side walls and a bottom, and ink 811 is arranged in the groove and used for presenting a color effect.

In another embodiment, the precise microstructure layer 8 is provided with a precise microstructure, the precise microstructure comprises a plurality of grooves and a platform area connected with the grooves, and the periods of the grooves are arranged according to a preset rule and are used for presenting a three-dimensional relief effect; the recess comprises at least two opposite side walls and a bottom, in which ink 811 is arranged for presenting a color effect.

Preferably, the ink 811 is a nano ink, the nano ink is partially or fully arranged in the groove of the micro-nano substructure in a transfer printing or gravure manner, and the size of the nano ink particles is smaller than the width of the groove on the micro-nano substructure. Referring to fig. 19, the stamping film has positioning color marks 812, the positioning color marks 812 are located on two sides of the precision micro-structure layer 8, and the positioning color marks 812 facilitate identification of stamping in the stamping process.

The precise microstructure layer 8 in fig. 18 and 19 is only schematic, and the actual structure of the precise microstructure is shown in fig. 4a-4d, fig. 5a-5d and fig. 9, but not limited thereto.

In this embodiment, the dielectric layer 9 is made of aluminum metal, but in other embodiments, the dielectric layer may also be made of a metal material such as chromium metal or a transparent medium such as zinc sulfide or magnesium fluoride. The base film layer 6 is preferably a PET film layer. From type layer 7 be convenient for peel off precision micro-structure layer 8 and base membrane layer 6, from type layer 7 can be by having from the type effect base membrane layer 6 or have from the precision micro-structure layer 8 of type effect and replace.

The thicknesses of the base film layer 6, the release layer 7, the precise microstructure layer 8 and the dielectric layer 9 can be selected according to actual conditions, preferably, the thickness of the base film layer 6 is 12-23 μm, the thickness of the release layer 7 is 1-10 μm, the thickness of the precise microstructure layer 8 is 1-10 μm, and the thickness of the dielectric layer 9 is 10-50 nm.

An embodiment of the preparation method of the hot stamping film of the embodiment is as follows: firstly, the release layer 7 is coated on the base film layer 6 of the PET film layer, or the release layer 7 can be not coated, and the base film layer 6 with the release effect or the precise microstructure layer 8 with the release effect can be adopted. Then, a transparent coating is coated on the release layer 7, a plurality of micro-nano sub-structures are manufactured through transfer printing or gravure printing and are solidified, grooves are formed in the micro-nano sub-structures, and nano ink is positioned and filled in the grooves or ink is coated and cleaned, so that the nano ink is only filled in the grooves. Then, a medium layer 9 is vacuum evaporated, and the medium layer 9 can highlight the gradual change or relief effect. Finally, a hot melt adhesive layer 10 is coated to obtain the hot stamping film of the embodiment, and the layers form a composite layer of the hot stamping film.

Another embodiment of the preparation method is that the release layer 7 is coated on the base film layer 6 of the PET film layer, or the release layer 7 may not be coated, and the base film layer 6 with the release effect or the precise microstructure layer 8 with the release effect may be adopted. Then, a transparent coating is coated on the release layer 7, a plurality of grooves and platforms connected with the grooves are manufactured through transfer printing or gravure printing and are solidified, and nano ink is filled in the grooves in a positioning mode or the ink is coated and cleaned, so that the nano ink is only filled in the grooves. Then, a medium layer 9 is vacuum evaporated, and the medium layer 9 can highlight the gradual change or relief effect. Finally, the hot melt adhesive layer 10 is coated to obtain the hot stamping film of the embodiment, and the above layers form a composite layer of the hot stamping film.

The hot stamping film is manufactured and printed integrally without two steps, so that the production efficiency is greatly improved, and the production cost is saved.

Transfer film

Referring to fig. 20, the transfer film according to an embodiment of the present invention includes a base film layer 11, a precise microstructure layer 12, and a dielectric layer 13, which are sequentially disposed from top to bottom, wherein a precise microstructure for forming a pattern region is disposed on a surface of the precise microstructure layer 12 away from the base film layer 11, the precise microstructure includes a plurality of micro-nano sub-structures, a groove is disposed on the micro-nano sub-structures, and ink 122 is filled in the groove.

In another embodiment, the precise microstructure layer 12 is provided with a precise microstructure for forming a pattern region on a surface away from the base film layer 11, and the precise microstructure includes a plurality of grooves and lands, and the grooves are filled with the ink 122.

In this embodiment, a base film layer 11 having a release effect or a precision microstructure layer 12 having a release effect is used. The precise microstructure layer 12 in fig. 20 is only schematic, and the actual structure of the precise microstructure is shown in fig. 4a to 4d, fig. 5a to 5d and fig. 9, but not limited thereto.

The parameters and preparation methods of the base film layer 11, the precise microstructure layer 12 and the medium layer 13 are the same as those of the hot stamping film embodiment, and a transfer film which is a composite layer is obtained, which is not described herein again.

Composite paper

Referring to fig. 21, the composite paper according to an embodiment of the present invention includes a base film layer 14, a precise microstructure layer 15, a dielectric layer 16, a hot melt adhesive layer 17, and a base paper layer 18, which are sequentially disposed from top to bottom, wherein a precise microstructure for forming a pattern region is disposed on a surface of the precise microstructure layer 15 away from the base film layer 14, the precise microstructure includes a plurality of micro-nano sub-structures, a groove is disposed on the micro-nano sub-structures, and the groove is filled with ink 152.

In another embodiment, the precise microstructure layer 15 is provided with a precise microstructure for forming a pattern region on a surface away from the base film layer 14, the precise microstructure comprises a plurality of grooves and a platform region connected thereto, and the grooves are filled with the ink 152.

In other embodiments, a base film layer 14 having a release effect or a precision microstructure layer 15 having a release effect may be employed. The parameters and preparation methods of the base film layer 14, the precise microstructure layer 15 and the dielectric layer 16 are the same as those of the hot stamping film embodiment, and are not described herein again. After the base film layer 14, the precision micro-structure layer 15 and the dielectric layer 16 are prepared, they are combined with the roll-like white cardboard (base paper layer 18) coated with glue (hot melt glue layer 17) to obtain the composite paper of the present embodiment, and the above layers form the composite layer of the composite paper. The precise microstructure on the precise microstructure layer 15 in fig. 21 is only schematic, and the actual structure of the precise microstructure is shown in fig. 4a-4d, fig. 5a-5d and fig. 9, but not limited thereto.

Transfer paper

Referring to fig. 22, the transfer paper according to an embodiment of the present invention includes a precise microstructure layer 19, a dielectric layer 20, a hot melt adhesive layer 21, and a base paper layer 22 sequentially disposed from top to bottom, wherein a precise microstructure is disposed on a lower surface of the precise microstructure layer 19, the precise microstructure includes a plurality of micro-nano structures, a groove is disposed on each micro-nano structure, and ink 192 is filled in the groove.

In another embodiment, the precise microstructure layer 19 has a precise microstructure disposed on a lower surface thereof, the precise microstructure includes a plurality of grooves and land areas, and the grooves are filled with ink 192.

In other embodiments, a precise microstructure layer 19 with a release effect may also be used. The parameters and preparation methods of the precision microstructure layer 19 and the dielectric layer 20 are the same as those of the hot stamping film embodiment, and the preparation methods of the hot melt adhesive layer 21 and the base paper layer 22 are the same as those of the composite paper embodiment, which are not described herein again. The precise microstructure layer 19 in fig. 20 is only schematic, and the actual structure of the precise microstructure is shown in fig. 4a to 4d, fig. 5a to 5d and fig. 9, but not limited thereto.

In summary, the following steps: the hot stamping film, the transfer film, the composite paper and the transfer paper are provided with precise microstructures, and the precise microstructures have a three-dimensional embossment effect; the micro-nano structure comprises an inclined plane and shows a dynamic optical effect; the grooves are formed in the precise microstructure, and ink is filled in the grooves, so that a colored effect is achieved; filling different printing inks in a regional positioning manner or filling different printing inks in a multilayer manner to show a colorful effect; finally, combining three effects of color, dynamic shadow and three-dimensional relief on the precise microstructure; the width of the groove is less than 30 mu m, micro-nano ink is filled in the groove, the groove is finer, and the displayed image is finer.

Meanwhile, as the ink is only filled in the groove, the use of the ink is reduced, and the ink is more environment-friendly; and the subsequent printing is not needed, so that the process steps are reduced, and the cost is reduced.

Anti-fake certificate card

Referring to fig. 23-24, the endorseable counterfeit-proof card with multi-color three-dimensional dynamic images according to the present invention includes a base layer, a first endorsement layer disposed on one side of the base layer, a first composite layer disposed on the first endorsement layer, a second endorsement layer disposed on the other side of the base layer, and a second composite layer disposed on the second endorsement layer.

In one embodiment, as shown in FIG. 23, the security card comprises a first composite layer 23, a first endorsement layer 24, a base layer 25, a second endorsement layer 26 and a second composite layer 27, which are sequentially stacked from top to bottom. The first composite layer 23 includes a first base film layer 231, a first microstructure layer 232, a first coating layer 233 and a first protective layer 234, which are sequentially stacked, and the first base film layer 231 is disposed on the first endorsement layer 24. A precise microstructure is arranged on the first microstructure layer 232, the precise microstructure comprises a plurality of micro-nano sub-structures, grooves are formed in the micro-nano sub-structures, and ink with at least one color is filled in the grooves; or the precise microstructure comprises a plurality of grooves and a platform area, and the grooves are filled with at least one color of printing ink; the second composite layer 27 includes a second base film layer 271 and a second protective layer 272 disposed in that order, the second endorsement layer 26 is disposed on the second base film layer 271, and the second endorsement layer 26 is located between the base layer 25 and the second base film layer 271.

In another embodiment, as shown in FIG. 24, the difference from the embodiment shown in FIG. 23 is that the second composite layer 27 comprises a second base film layer 271, a second microstructure layer 273, a second coating layer 274, and a second protective layer 272 which are sequentially arranged. A precise microstructure is arranged on the second microstructure layer 273, the precise microstructure comprises a plurality of micro-nano sub-structures, grooves are formed in the micro-nano sub-structures, and ink with at least one color is filled in the grooves; or the precise microstructure comprises a plurality of grooves and a platform area, and the grooves are filled with at least one color of printing ink.

The first and second microstructure layers 232 and 273 of fig. 23 and 24 are only schematic, and the actual structures of the fine microstructures on the first and second microstructure layers 232 and 273 are shown in fig. 4a to 4d, 5a to 5d, and 9, but not limited thereto.

In an embodiment of the anti-counterfeiting certificate card, the first microstructure layer and the second microstructure layer are made of resin, the resin is coated on the base film layer, the precise microstructure is preferably resin with good bonding property with the base film layer, and more preferably, the precise microstructure is a UV cured resin layer, so that the precise microstructure is not deformed when being heated and pressed for lamination.

In the embodiment of the anti-counterfeiting card, the base layer comprises one or more film layers, the material of the base layer is preferably a PC film layer or a PET film layer, and a chip can be arranged in the base layer. The first base film layer is preferably a PC base film layer or a modified PET base film layer, and the second base film layer is preferably a PC base film layer or a modified PET base film layer. The first endorsement layer is made of a PC film or a modified PET film, the second endorsement layer is made of a PC film or a modified PET film, multiple images and/or graphic characters are arranged on the first endorsement layer and/or the second endorsement layer and support real-time endorsement of the multiple images and the graphic characters, and the graphic characters comprise one or more of a three-dimensional portrait, a three-dimensional figure, an in-situ different figure, a dynamic floating sinking character figure and a two-dimensional code. The first film coating layer is an opaque metal layer or a transparent medium layer and is used for protecting the first microstructure layer and enhancing the brightness; the material of the opaque metal layer comprises one or more of chromium, aluminum and copper, and the material of the transparent dielectric layer comprises one or more of zinc sulfide, titanium dioxide and magnesium fluoride. The second film coating layer is an opaque metal layer or a transparent medium layer and is used for protecting the second microstructure layer and enhancing the brightness; the material of the opaque metal layer comprises one or more of chromium, aluminum and copper, and the material of the transparent dielectric layer comprises one or more of zinc sulfide, titanium dioxide and magnesium fluoride. The first protective layer is preferably bonded on the first coating layer, and the first protective layer is preferably a resin layer with good bonding property with the first coating layer, so that the anti-counterfeiting certificate card has the functions of oil stain resistance, fingerprint resistance and scratch resistance.

In one embodiment, the preparation method of the anti-counterfeiting certificate card comprises the following steps:

step 1: a first composite layer is prepared. Specifically, a resin layer (UV cured resin layer) is coated on one side of the first base film layer 231, a first microstructure layer 232 is manufactured on the resin layer by transfer printing or gravure printing, a precise microstructure is arranged on the first microstructure layer 232, the precise microstructure comprises a plurality of micro-nano structures, grooves are formed in the micro-nano structures, and the grooves are filled with ink; or the precise microstructure on the first microstructure layer 232 comprises a plurality of grooves and a platform area, and the grooves are filled with ink; vacuum coating is carried out on the first microstructure layer 232 to form a first coating layer 233; a first protective layer 234 is coated on the first coating layer 233 to obtain a first composite layer.

Step 2: and preparing a second composite layer.

The preparation of the second composite layer comprises: a second protective layer 272 is coated on the second base film layer 271.

Or, coating a resin layer on the second base film layer 271, and performing transfer printing or gravure printing on the resin layer to manufacture the second microstructure layer 273, wherein the precise microstructure on the second microstructure layer 273 comprises a plurality of micro-nano substructures, grooves are formed in the micro-nano substructures, and ink is filled in the grooves, or the precise microstructure on the second microstructure layer 273 comprises a plurality of grooves and platform areas, and ink is filled in the grooves; then, a second plating layer 274 is formed on the second microstructure layer 273 by vacuum deposition, and a second protective layer 272 is formed on the second plating layer 274, so as to obtain the second composite layer 27.

And step 3: heat laminating a first composite layer 23, a first endorsement layer 24, a base layer 25, a second endorsement layer 26, a second composite layer 27, with a first base film layer 231 in the first composite layer 23 disposed on the first endorsement layer 24 and the second endorsement layer 26 disposed on a second base film layer 271 in the second composite layer 27.

The method can also comprise the following step 4: image signatures are made on the first endorsement layer 24 and the second endorsement layer 26 on a real-time basis.

Step 4 is not required and in other embodiments step 4 may not be included.

The texture of the anti-counterfeiting certificate card can realize dynamic, embossed and other colorful three-dimensional dynamic image effects with extremely bright sense through precise photoetching, and the anti-counterfeiting effect is good; the anti-counterfeiting effect of the compact and precise microstructure is arranged on the two sides of the anti-counterfeiting certificate card, so that effective anti-counterfeiting can be realized, and the expressive force of the anti-counterfeiting certificate card is improved. The first composite layer 23, the first endorsement layer 24, the base layer 25, the second endorsement layer 26 and the second composite layer 27 are integrally formed in a laminating mode, the process is simple, the stability is good, and the quality of the anti-counterfeiting certificate card is excellent.

The multi-color three-dimensional dynamic image of the anti-counterfeiting certificate card is realized by ultra-precise micro-gravure printing, the mode and the precision of the ultra-precise micro-gravure printing are greatly different from those of the existing gravure printing, the precision of the existing gravure printing is generally about 50um, the precision of the ultra-precise micro-gravure printing technology is in the scale range of 5-50 um, the controllable range is large, and the texture on the image can realize the effects of dynamic and relief and the like with luster through precise photoetching.

Decorative texture

The decorative texture can be applied to the fields of household appliances, mobile phone back plates, cosmetic top covers or automobile decoration and the like.

Referring to fig. 25-29, fig. 25-29 are schematic structural views of different embodiments of the decorative texture according to the present invention, the decorative texture provided by the present invention comprises a base layer and at least one composite layer disposed on the base layer, wherein at least one composite layer comprises a fine microstructure.

As shown in fig. 25, the present invention provides the decorative texture structure of the first embodiment, which comprises a base layer 40, a first adhesive layer 41, and a first composite layer 42, which are sequentially arranged from top to bottom, wherein the first composite layer 42 comprises a first film layer 421 and a first microstructure layer 422; the first film layer 421 is fixedly arranged on the base layer 40 through a first adhesive layer 41, and the first microstructure 422 is provided with a precise microstructure, which comprises a first precise microstructure main body layer 4221, a first coating layer 4222 and a first ink layer 4223; a plurality of micro-nano structures are arranged on the first precise microstructure main body layer 4221, grooves are arranged on the micro-nano structures, or a plurality of grooves and platform areas are arranged on the first precise microstructure main body layer 4221; the first coating layer 4222 is a conformal structure imitating the surface shape of the precise microstructure main body layer 4221, grooves are formed in the first coating layer 4222, the grooves in the first coating layer 4222 correspond to the grooves in the first precise microstructure main body layer 4221 in a one-to-one mode, and ink is filled in the grooves of the first coating layer 4222.

As shown in fig. 26, the present invention provides the decorative texture structure of the second embodiment, which comprises a base layer 40, a first adhesive layer 41, a first composite layer 42, a second adhesive layer 43 and a second composite layer 44, which are sequentially arranged from top to bottom. The base layer 40, the first adhesive layer 41 and the first composite layer 42 are the same as those of the embodiment shown in fig. 25, and the second composite layer 44 includes a second film layer 441 and a second microstructure layer 442 sequentially disposed from top to bottom; the second film layer 441 is fixedly disposed on the first composite layer 42 through the second adhesive layer 43, and the second microstructure layer 442 is disposed with a precise microstructure or other microstructures, such as a laser micro-nano structure, a sub-silver micro-nano structure, and the like, but not limited thereto. Taking the example that the second micro-nano structure layer 442 is provided with a precise microstructure, the second micro-nano structure layer comprises a second precise microstructure main body layer 4421, a second film coating layer 4422 and a second ink layer 4423. The second plating layer 4422 is a conformal structure imitating the surface shape of the second precise microstructure main body layer 4421, the grooves of the second plating layer 4422 correspond to the grooves of the second precise microstructure main body layer 4421 one by one, and the second ink layer 4423 is filled in the grooves on the second plating layer 4422.

As shown in fig. 27, the present invention provides a decorative texture structure of a third embodiment, where the decorative texture structure includes a base layer 40, a first adhesive layer 41, a first composite layer 42, and a screen printing layer 45, which are sequentially disposed from top to bottom, the first composite layer 42 includes a first thin film layer 421, a first microstructure layer 422, and a first coating layer 423, which are sequentially disposed from top to bottom, the first microstructure layer 422 is provided with a precise microstructure including a plurality of micro-nano sub-structures, the micro-nano sub-structures are provided with grooves, and the grooves are filled with ink; first film layer 421 is fixed on basic unit 40 through first glue film 41, and silk screen printing layer 45 sets up on first coating film layer 423.

As shown in fig. 28, the present invention provides a fourth embodiment of the decorative texture structure, which comprises a base layer 40, a first adhesive layer 41, a first composite layer 42, a second adhesive layer 43 and a second composite layer 44, which are sequentially arranged from top to bottom. The base layer 40, the first adhesive layer 41, and the first composite layer 42 are the same as those in the embodiment shown in fig. 27, the second composite layer includes a second film layer 441 and a second microstructure layer 442 sequentially disposed from top to bottom, and the second microstructure layer 442 is provided with a precise microstructure or other microstructures, such as a laser micro-nano structure, a silver-containing micro-nano structure, and the like, but not limited thereto. Taking the example of the second microstructure layer 442 having a precise microstructure, the second microstructure layer includes a second precise microstructure main layer 4421, a second film coating layer 4422 and a second ink layer 4423; the second precise microstructure main body layer 4421 is provided with a plurality of micro-nano structures, the micro-nano structures are provided with grooves, or the second precise microstructure main body layer 4421 is provided with a plurality of grooves and platform regions, the second coating layer 4422 is a conformal structure imitating the surface shape of the second precise microstructure main body layer 4421, the grooves on the second coating layer 4422 correspond to the grooves on the second precise microstructure main body layer 4421 one by one, the second ink layer 4423 is filled in the grooves on the second coating layer 4422, and the second film layer 441 is fixedly arranged on the first composite layer 42 through the second adhesive layer 43.

As shown in fig. 29, the present invention provides the decorative texture structure of the fifth embodiment, which comprises a base layer 40, a first glue layer 41, a first composite layer 42 and a second composite layer, which are sequentially disposed from top to bottom. The first composite layer 42 includes a first film layer 421 and a first microstructure layer 422; the first microstructure layer 422 is provided with a precise microstructure, and the first microstructure layer 422 comprises a first precise microstructure main body layer 4221, a first coating layer 4222 and a first ink layer 4223; a plurality of micro-nano structures are arranged on the first precise microstructure main body layer 4221, grooves are arranged on the micro-nano structures, or a plurality of grooves and platform areas are arranged on the first precise microstructure main body layer 4221; the first coating layer 4222 is a conformal structure imitating the surface shape of the precise microstructure main body layer 4221, grooves are formed in the first coating layer 4222, the grooves in the first coating layer 4222 correspond to the grooves in the first precise microstructure main body layer 4221 in a one-to-one mode, and ink is filled in the grooves of the first coating layer 4222. The second composite layer is provided with a precise microstructure or other micro-nano structures, such as a laser micro-nano structure, a sub-silver micro-nano structure and the like, but not limited thereto. Taking the laser micro-nano structure as an example, the second composite layer only comprises a second micro-structure layer 442 'which comprises a second micro-nano structure main body layer 4421', a second coating layer 4422 'and a second ink layer 4423'; the second film coating layer 4422' is a conformal structure imitating the surface shape of the second micro-nano structure main body layer 4421', grooves on the second film coating layer 4422' correspond to grooves of micro-nano structures on the second micro-nano structure main body layer 4421' one to one, the second ink layer 4423' is filled in the grooves on the second film coating layer 4422', and the second micro-nano structure main body layer 4421' is arranged on the first composite layer 42.

The first microstructure layer 422 and the second microstructure layer 442 and 442 'in fig. 25 to 29 are only schematic, and the first microstructure layer 422 and the second microstructure layer 442 and 442' are provided with precise microstructures, and the actual structures are shown in fig. 4a to 4d, fig. 5a to 5d and fig. 9, but not limited thereto.

In the embodiment of fig. 25-29, the substrate is a transparent flat glass or composite sheet; the first adhesive layer and the second adhesive layer are OCA optical adhesive layers; the first film layer and the second film layer are PET films, the thickness range is 25-200 μm, and the preferable thickness range is 50-100 μm; the first microstructure layer and the second microstructure layer are UV adhesive layers; the first ink layer is nano ink, and the nano ink is printed by a metal scraper and filled in the groove of the micro-nano substructure; the second ink layer is made of nano ink through a screen printing process, the thickness range of the second ink layer is 10-15 mu m, the second ink layer is white ink or black ink, and the function of covering the substrate can be achieved. The first coating layer and the second coating layer are made of materials such as a brightening film, an antireflection film, siO2, indium and the like, have the thickness ranging from 80nm to 260nm, preferably have the thickness of 140nm and are used for realizing the functions of brightening, antireflection and medium color; the silk-screen layer is an ink layer and is manufactured through a silk-screen printing process, the thickness range of the silk-screen layer is 10-15 mu m, and the silk-screen layer is white ink or black ink, so that the function of covering the substrate can be realized.

The decorative texture is formed by transferring the micro-nano texture on the base material by using a micro-nano photoetching technology, and the base material is provided with a precise microstructure, so that the effects of three-dimensional, shadow and color are presented. More soft than traditional gradual change colour, the vision sense organ is more comfortable, and can possess the dazzling light effect of texture, can prepare more kinds of effects, and the application is wider, like mobile phone decoration, automotive interior, cosmetics top cap, household electrical appliances surface texture etc.. The problem of in the prior art pattern color relatively monotonous, can only realize the superimposed gradual change effect of 2-3 colours, can't polychrome change is solved. Fig. 30 is an effect diagram of an embodiment, and the prepared decorative texture shows the effect of the ink-wash painting.

The same layer name in the different products or embodiments does not mean that the related parameters such as material, composition, thickness or pattern are necessarily the same, and may be the same or different, and may be selected or manufactured according to actual needs. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on," "disposed on" or "located on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly formed on" or "directly disposed on" another element, there are no intervening elements present.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.

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

In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, which may include other elements not expressly listed in addition to those listed.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A three-dimensional shadow color decorative texture is characterized by comprising a base layer, a first adhesive layer and a first composite layer which are sequentially arranged from top to bottom; the first composite layer comprises a first film layer and a first microstructure layer; the first film layer is fixedly arranged on the base layer through a first adhesive layer, the first microstructure layer is provided with a precise microstructure, and the precise microstructure comprises a first precise microstructure main body layer, a first coating layer and a first ink layer;

a plurality of micro-nano structures are arranged on the first precise microstructure main body layer, and grooves are formed in the micro-nano structures; the period of the micro-nano sub-structures is arranged according to a preset rule, including Fresnel rule arrangement or equal-width slitting projection rule arrangement; the micro-nano sub-structure can also comprise at least one inclined plane, and the inclined plane is used for reflecting light rays to generate a light and shadow effect; the ratio of the width of the groove on each micro-nano sub-structure to the period of the micro-nano sub-structure is K, and the ratios K of different micro-nano sub-structures are the same;

2. The stereoscopic shadow-color decorative texture of claim 1, wherein the substrate is a transparent flat glass or a composite plate;

the first adhesive layer is an OCA optical adhesive layer;

3. The solid shadow color decorative texture of claim 2, wherein the thickness of the first film layer ranges from 50 μ ι η to 100 μ ι η;

the first coating layer is prepared by adopting an evaporation or vacuum sputtering process.

4. The solid shadow color decorative texture, according to claim 1, further comprising a second glue layer and a second composite layer; the second composite layer comprises a second film layer and a second microstructure layer which are sequentially arranged from top to bottom; the second film layer is fixedly arranged on the first composite layer through a second adhesive layer, and the second microstructure layer is provided with a precise microstructure, a laser micro-nano structure or a sub-silver micro-nano structure.

5. The stereoscopic shadow-color decorative texture of claim 4, wherein the second microstructure layer is provided with a precise microstructure, and the precise microstructure on the second microstructure layer comprises a second precise microstructure body layer, a second coating layer and a second ink layer. The second coating layer is a conformal structure imitating the surface shape of the second precise microstructure main body layer, the grooves of the second coating layer correspond to the grooves of the second precise microstructure main body layer one by one, and the second printing ink layer is filled in the grooves on the second coating layer.

6. The solid shadow color decoration texture of claim 5, wherein the second adhesive layer is an OCA optical adhesive layer;

7. The solid shadow color decoration texture of claim 1, further comprising a second composite layer, wherein the second composite layer is provided with a precision microstructure, a laser micro-nano structure or a sub-silver micro-nano structure.

8. The solid shadow color decoration texture of claim 7, wherein the second composite layer comprises a second micro-structure layer, the second micro-structure layer comprises a second micro-nano structure body layer, a second coating layer and a second ink layer; the second coating layer is a conformal structure imitating the surface shape of the second micro-nano structure main body layer, grooves in the second coating layer correspond to grooves of micro-nano structures in the second micro-nano structure main body layer in a one-to-one mode, the second ink layer is filled in the grooves in the second coating layer, and the second micro-nano structure main body layer is arranged on the first composite layer.

9. The solid shadow color decorative texture of claim 8, wherein the second ink layer is nano ink, and the thickness of the second ink layer is in the range of 10 μm to 15 μm;

10. A three-dimensional shadow color decorative texture is characterized by comprising a base layer, a first adhesive layer and a first composite layer which are sequentially arranged from top to bottom; the first composite layer comprises a first film layer, a first microstructure layer and a first coating layer which are sequentially arranged from top to bottom;

11. The solid shadow-color decorative texture of claim 10, further comprising a silk-screen layer, the silk-screen layer being disposed on the first coating layer; the silk-screen layer is an ink layer, and the thickness range of the silk-screen layer is 10-15 mu m.

12. The stereoscopic shadow-color decorative texture of claim 10, further comprising a second adhesive layer and a second composite layer, wherein the second composite layer comprises a second film layer and a second microstructure layer sequentially arranged from top to bottom, the second microstructure layer is provided with a precise microstructure, a laser micro-nano structure or a sub-silver micro-nano structure, and the second film layer is fixedly arranged on the first composite layer through the second adhesive layer.

13. The solid light shadow color decorative texture, as claimed in claim 12, wherein the precise microstructure on the second microstructure layer comprises a second precise microstructure body layer, a second coating layer and a second ink layer; the second precise microstructure main body layer is provided with a plurality of micro-nano substructures, the micro-nano substructures are provided with grooves, or the second precise microstructure main body layer is provided with a plurality of grooves and platform areas, the second coating layer is a conformal structure imitating the surface shape of the second precise microstructure main body layer, the grooves on the second coating layer correspond to the grooves on the second precise microstructure main body layer one by one, and the second ink layer is filled in the grooves on the second coating layer.

14. The solid light shadow color decorative texture as claimed in claim 13, wherein the second adhesive layer is an OCA optical adhesive layer;