CN115497402B

CN115497402B - A three-dimensional light and shadow color decorative texture

Info

Publication number: CN115497402B
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: 2025-02-11
Anticipated expiration: 2042-05-20
Also published as: CN115497402A; CN114639326B; CN114639326A; CN115497403B; CN115527467A; CN115497403A

Abstract

The present invention discloses a three-dimensional light and shadow color decorative texture. It includes a base layer, a first adhesive layer, and a first composite layer arranged in sequence from top to bottom; the first composite layer includes a first film layer and a first microstructure layer; the first microstructure layer includes a first precision microstructure main layer, a first coating layer, and a first ink layer, the first coating layer is a conformal structure imitating the surface shape of the precision microstructure main layer, and the ink is filled in the groove of the first coating layer; or the first composite layer includes a first film layer, a first microstructure layer, and a first coating layer, and the first microstructure layer is provided with a precision microstructure, which includes a plurality of micro-nano substructures, and the micro-nano substructure is provided with a groove, and the groove is filled with ink; the first film layer is fixedly arranged on the base layer through the first adhesive layer. The decorative texture of the present invention uses micro-nano lithography technology to transfer micro-nano textures onto a substrate, and by arranging a precision microstructure on the substrate, a three-dimensional, light and shadow, and color effect is presented; and the texture can have a glare effect.

Description

Three-dimensional shadow color decorative texture

The invention relates to a precise microstructure presenting a stereoscopic relief image, a preparation method and application of the precise microstructure, which are classified application of application No. 202210548852.9 and application date 2022.05.20.

Technical Field

The invention relates to the field of decorative textures, in particular to a stereoscopic light and shadow color decorative texture.

Background

The existing fine publications such as magazines and catalogues, package printing, valuable securities such as bank notes and stamps, and printing of decorative materials in special fields such as mobile phone decoration, automobile interior decoration, daily chemical product top covers, household appliance surfaces and the like are carried out, and the ink is transferred to the surface of a printing stock by a screen printing method or a gravure printing method and the like. In screen printing, the shade of color is realized by the difference of the dot sizes. In intaglio printing, the image-text part of the precise intaglio is concave, the concave degree is different with the level of the image, and the blank part of the precise intaglio is convex and is on the same plane. The gradation of the printed picture is determined by the size and depth of the pits, if the pits are deeper, more ink is contained, the ink layer left on the printed matter after stamping is thicker, on the contrary, if the pits are shallower, the ink content is smaller, and the ink layer left on the printed matter after stamping is thinner. The precise intaglio for intaglio printing consists of pits corresponding to the text of the original manuscript and the surface of the precise intaglio.

The prior gravure technology is limited by precision, the pit dot size is larger than 50 mu m, the image fineness is not high, the relief sense of the image is represented by the color depth of the ink, the limitation is present, the true three-dimensional sense cannot be represented, and the expression effect is single because only one expression mode of the color depth is provided.

Accordingly, there is a need for an improved solution to overcome the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a stereoscopic light shadow color decorative texture which can show stereoscopic, light shadow and color effects.

According to one aspect of the invention, the invention provides a stereoscopic light 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, wherein the first composite layer comprises a first film layer and a first microstructure layer;

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

The first coating layer is of a conformal structure imitating the surface shape of the main body layer of the precise microstructure, grooves are formed in the first coating layer, the grooves in the first coating layer correspond to the grooves in the main body layer of the precise microstructure one by one, and printing ink is filled in the grooves in the first coating layer.

In one embodiment, the base layer is transparent and flat glass or a composite board;

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, the first microstructure layer is a UV adhesive layer, the first ink layer is nano ink, the nano ink is scraped by a metal scraper and filled into grooves of the micro-nano substructure, the material of the first coating layer comprises a brightness enhancement film, an antireflection film, siO2 and indium, and the thickness range of the first coating layer is 80-260 nm.

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

the thickness of the first coating layer is 140nm, which is used for realizing the functions of brightness enhancement, reflection enhancement and medium color,

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

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

In one embodiment, the second microstructure layer has a precision microstructure disposed thereon, and the precision microstructure on the second microstructure layer includes a second precision microstructure body layer, a second coating layer, and a second ink layer. The second coating layer is of a conformal structure imitating the surface shape of the second precise microstructure main body layer, grooves of the second coating layer correspond to the grooves of the second precise microstructure main body layer one by one, and the second ink layer is filled in the grooves of the second coating layer.

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

The second film layer is a PET film, and the thickness of the second film layer ranges from 25 mu m to 200 mu m;

The second ink layer is nano ink, and the thickness of the second ink layer ranges from 10 mu m to 15 mu m;

the second coating layer comprises a brightness enhancement film, an antireflection film, siO2, indium and other materials, and the thickness of the second coating layer ranges from 80nm to 260nm.

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

In one embodiment, the second composite layer comprises a second microstructure layer, the second microstructure layer comprises a second micro-nano structure main body layer, a second coating layer and a second printing ink layer, the second coating layer is of a conformal structure imitating the surface shape of the second micro-nano structure main body layer, grooves on the second coating layer correspond to grooves of the micro-nano structure on the second micro-nano structure main body layer one by one, the second printing ink layer is filled in the grooves on 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 nanoink, the thickness of the second ink layer being in the range of 10 μm to 15 μm;

According to another aspect of the invention, the invention provides a stereoscopic 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, wherein 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 substructures, grooves are formed in the micro-nano substructures, and ink is filled in the grooves; the micro-nano substructure is arranged according to a preset rule, including arrangement according to a Fresnel rule or arrangement according to an equal-width slitting projection rule, and can also comprise at least one inclined plane for reflecting light rays to generate a light shadow effect, wherein the ratio of the width of the groove on each micro-nano substructure to the period of the micro-nano substructure is K, and the ratio K of different micro-nano substructures is the same;

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

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

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

In one embodiment, the device further comprises a second adhesive layer and a second composite layer, wherein the second composite layer comprises a second film layer and a second microstructure layer which are sequentially arranged from top to bottom, a precise microstructure, a laser micro-nano structure or a silver sub-micro-nano structure is arranged on the second microstructure layer, 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 main body layer, a second coating layer and a second printing ink layer, wherein a plurality of micro-nano substructures are arranged on the second precise microstructure main body layer, grooves are formed in the micro-nano substructures, or a plurality of grooves and platform areas are formed in the second precise microstructure main body layer, 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 printing ink layer is filled in the grooves on the second coating layer.

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

The invention has the beneficial effects that the decorative texture is formed by transferring the micro-nano texture on the substrate by using the micro-nano lithography technology, and the three-dimensional, light shadow and color effects are presented by arranging the precise microstructure on the substrate. Compared with the traditional gradient color, the color-changing type multifunctional color-changing material is softer, more comfortable in visual sense and sense, capable of achieving a dazzling effect of textures, capable of achieving more various effects, and wider in application field, such as mobile phone decoration, automobile interior decoration, cosmetic top covers, surface textures of household appliances and the like. The method solves the problems that the pattern color is relatively monotonous, the superposition gradual change effect of 2-3 colors can be realized, and multicolor change cannot be realized in the prior art.

In the precise microstructure, the three-dimensional relief effect is displayed by arranging the micro-nano substructure in the precise microstructure according to the Fresnel rule or the equal-width slitting projection rule, so that the precise microstructure displays the three-dimensional relief effect, the micro-nano substructure comprises an inclined surface and displays a dynamic optical effect, the precise microstructure is provided with grooves, ink is filled in the grooves to display a colored effect, different inks are filled in different areas in a positioning manner or are filled in multiple layers to display a colored effect, and finally three effects of color, dynamic light and shadow and three-dimensional relief are combined on the precise microstructure, the width of the grooves is smaller than 30 mu m, and the grooves are filled with micro-nano ink, so that 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, transferring, cleaning and solidifying to obtain the ultra-precise structure, wherein ink only exists in a groove of the micro-nano substructure instead of covering the precise microstructure, the used ink is small in quantity, the three-dimensional relief effect and the shadow effect of the micro-nano substructure are reserved, and meanwhile, the color is more gorgeous. After being cleaned, the method can also collect the cleaned ink for repeated use, and is low-carbon and environment-friendly.

According to the other preparation method of the precise microstructure, the ink is adhered to the template through the anilox roller, and simultaneously the ink is filled in the grooves at the same time when the micro-nano substructure is transferred.

Drawings

FIG. 1 is a schematic cross-sectional view of a precision microstructure provided by 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 illustrating an embodiment of a method for arranging a plurality of micro-nano substructures according to the present invention;

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

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

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

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

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

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

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

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

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

FIG. 7 is an example of filling different areas with different color inks in the present invention;

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

FIG. 9 is a schematic cross-sectional view of a precision microstructure according to another embodiment of the present invention;

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

FIG. 10b is a schematic cross-sectional view of the micro-nano substructure 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 plating layer according to the present invention;

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

FIG. 13 is an exemplary diagram of two layers of precision microstructures in a counter-stacked arrangement;

FIG. 14 is a schematic flow chart of a method for producing a precise microstructure for presenting a stereoscopic relief image according to an embodiment of the present invention;

FIG. 15 is a process schematic of the preparation method of FIG. 14;

FIG. 16 is a schematic flow chart of a method for producing a precise microstructure for rendering a stereoscopic relief image according to an embodiment of the present invention;

FIG. 17 is a schematic diagram of a manufacturing system of the present invention in one embodiment;

FIG. 18 is a schematic view of the structure of a stamping film according to the present invention;

FIG. 19 is a schematic view of the construction of the stamping film ink and positioning marks of FIG. 18;

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

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

FIG. 22 is a schematic view of a transfer paper according to the present invention;

FIG. 23 is a schematic diagram of an embodiment of a counterfeit-proof card of the present invention;

FIG. 24 is a schematic diagram of another embodiment of an anti-counterfeit card of the present invention;

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

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

FIG. 27 is a schematic view of a third embodiment of a decorative texture according to 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 view showing the construction of a fifth embodiment of the decorative texture of the present invention;

FIG. 30 is an effect diagram of a decorative texture according to one embodiment of the present invention.

Detailed Description

The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.

As shown in fig. 1, the precision microstructure 1 comprises a plurality of micro-nano substructures 2, wherein the periods of the micro-nano substructures 2 are distributed according to a preset rule for presenting a three-dimensional relief effect, at least one groove 3 is arranged on the micro-nano substructures 2, 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 for presenting a color effect.

Fig. 2 is a scanning electron micrograph of an embodiment of the present invention. It can be seen that the precision microstructure 1 is a continuous line shape. In other embodiments, the precision microstructure 1 may also be a discontinuous line.

As shown in fig. 3a, in an embodiment of a method for arranging a plurality of micro-nano substructures 2 in the present invention, taking a three-dimensional relief effect finally presented as an example, a spherical surface model has a height of L, a spherical surface is layered at equal height according to fresnel rules, each layer has a height of L1, and a projection is performed to obtain continuous annular lines, each annular line is one micro-nano substructure 2, and a plurality of micro-nano substructures 2 are arranged on a plane according to fresnel rules, so as to present a three-dimensional relief effect, and fig. 3b is a cross-sectional view of the micro-nano substructure 2 in the embodiment, and a cross section of the micro-nano substructure in the embodiment is arc-shaped, so as to present a dynamic light shadow effect, a groove 3 is provided on the micro-nano substructure 2, and ink 4 is filled in the groove 3, so as to present a color. Therefore, the precise microstructure presents the effects of colored dynamic light shadow and three-dimensional relief, and in other embodiments, the precise microstructure can also be arranged according to the equal width dividing projection rule and the like, so as to present the three-dimensional relief effect.

In other embodiments, the stereoscopic relief effect of other images, such as animal, character, plant, etc., can be presented, but the invention is not limited thereto.

In some embodiments, as shown in fig. 4a-4d, the micro-nano substructure 2 includes inclined surfaces, which can reflect light, thereby exhibiting dynamic light effects. The micro-nano substructure 2 in fig. 4a comprises two inclined planes, the cross section is arc-shaped, the micro-nano substructure 2 in fig. 4b comprises one inclined plane, the cross section is triangle-shaped, the micro-nano substructure 2 in fig. 4c comprises one inclined plane, the cross section is arc-shaped, the micro-nano substructure 2 in fig. 4d comprises one inclined plane, the cross section is step-shaped, the groove 3 is arranged in the middle of the inclined plane of the micro-nano substructure 2, the ink is filled in the groove 3, and the bottom of the groove 3 and the bottom of the micro-nano substructure 2 are not on the same plane.

In other embodiments, as shown in fig. 5a-5d, the grooves 3 are arranged at the edges of the inclined surfaces of the micro-nano substructure 2, the grooves 3 are filled with ink, and the bottoms of the grooves 3 are in a plane with the bottoms of the micro-nano substructure 2.

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

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

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

In some embodiments, as shown in fig. 8, a conformal coating layer 401 is disposed on the plurality of micro-nano substructures, and grooves on the coating layer 401 correspond to grooves on the micro-nano substructures 2 one by one, and the ink 4 is filled in the grooves on the coating layer.

The precise microstructure 1 shown in fig. 9 comprises a plurality of grooves 3 and a platform area 5 connected with the grooves, wherein the periods of the grooves 3 are distributed according to a preset rule for presenting a three-dimensional relief effect, the grooves 3 comprise at least two opposite side walls (a first side wall 31, a second side wall 32) and a bottom 33, and the grooves 3 are internally provided with ink 4 for presenting a color effect. The grooves 3 are continuous and/or discontinuous lines, the width W of the grooves 3 is 50nm-30 mu m, the depth h of the grooves 3 is 50nm-50 mu m, the particle size of the ink is smaller than the width of the grooves 3, the particle size of the ink is 10nm-15 mu m, the widths of different grooves 3 are 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, and different grooves 3 can be filled with the same ink or different inks, so that the color effect is shown.

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 K values on different grooves 3 are the same.

Fig. 10a is an embodiment of a method for arranging a plurality of grooves 3 of a precise microstructure 1 according to the present invention, taking a final three-dimensional relief effect as an example, the spherical surface is L in height, the spherical surface is layered at equal height according to fresnel law, the layered height is L1, and continuous annular lines are obtained by projection, each annular line is a groove 3, fig. 10b is a cross-sectional view of the precise microstructure 1 in this embodiment, the precise microstructure 1 includes a plurality of grooves 3 and a land area 5 connected with the grooves 3, and the grooves 3 are filled with ink 4 to present colors. The precise microstructure can show the effect of colored stereoscopic relief, and in other embodiments, the precise microstructure can also be arranged according to the equal width slitting projection rule and the like to show the stereoscopic relief effect. In other embodiments, the stereoscopic relief effect of other images, such as animal, character, plant, etc., can be presented, but the invention is not limited thereto.

In some embodiments, as shown in fig. 11, a conformal coating 401 is disposed on the plurality of grooves and lands 5, and the grooves of the coating 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 grooves of the two layers of precise microstructures are filled with different inks to show a color effect, and in other embodiments, more layers of precise microstructures can be included.

In some embodiments, as shown in fig. 13, two precise microstructures 1 are included, two precise microstructures are oppositely stacked, and the grooves of the two precise microstructures are filled with different inks to show a color effect, and in other embodiments, more precise microstructures may be included, and the precise microstructures are not limited to these, as shown in fig. 4a-4d, fig. 5a-5d, and fig. 9.

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

The precise microstructure can be an integral polymer film substrate or a single layer, and the precise microstructure is made of curable materials such as UV glue, thermosetting glue and the like.

The precision microstructure may also be covered with a protective layer to protect the precision microstructure from wear during use.

FIG. 14 is a schematic flow chart of a method for producing a precise microstructure for presenting a stereoscopic relief image according to an embodiment of the present invention. Fig. 15 is a process schematic of the preparation method in fig. 14.

Referring to fig. 14 and 15, a method for preparing a precise microstructure for presenting a stereoscopic relief image, comprising:

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 onto the substrate, and curing;

s3, filling ink 130 on the transferred side of the substrate;

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 reverse microstructure on the template 110 corresponds to the microstructure concave-convex of the expected unfilled ink, specifically, the convex part on the reverse corresponds to the groove part on the microstructure,

The groove part on the reverse plate corresponds to the convex part on the microstructure.

The inverse 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-4d, fig. 5a-5d and fig. 9, but not limited thereto.

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

In one embodiment, the precision microstructures may be transferred onto the substrate all at once, and then one ink may be filled on one side of the transfer to appear one color, and in other embodiments, different inks may be filled in regions to appear a color effect.

In one embodiment, after step S4, i.e., curing, S2-S4 may be repeated on the side of the imprinted precision microstructure or on the side remote from the precision microstructure, followed by transfer of the precision microstructure, filling with ink, washing the ink, and retaining the ink in the grooves on the precision microstructure to form a multilayer precision microstructure preparation. Different inks are filled on different layers, thereby presenting a coloured effect.

In another embodiment, in step S4, that is, after curing, the transfer and curing of the precise microstructure may be performed again on the side of the substrate away from the precise microstructure, filling with ink, washing the ink, and retaining the ink in the grooves on the precise microstructure, thereby forming a double-sided precise microstructure. Different inks are filled on opposite sides, thereby exhibiting a color effect.

The base material is a curable material such as a UV adhesive layer, a thermosetting adhesive and the like which are coated on the polymer film.

The method for preparing the template 110 comprises the steps of designing a stereoscopic relief image, preprocessing the image according to a Fresnel rule or contour slitting projection to obtain a periodic gray image, providing a photoetching offset, photoetching the periodic gray image to obtain a micro-nano substructure with an inclined plane on the photoetching offset, photoetching grooves on the micro-nano substructure, and copying the obtained photoetching offset to obtain the template 110.

In another embodiment, the method for preparing the template 110 comprises designing a stereoscopic relief image, preprocessing the image according to a Fresnel rule or contour 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, taking the rest part in the period as a non-photoetched part to obtain a periodic binary image, providing a photoetched plate, photoetching the periodic binary image to obtain a groove on the photoetched plate, and copying the obtained photoetched plate to obtain the template 110.

FIG. 16 is a schematic flow chart of a method for producing a precise microstructure for presenting a stereoscopic relief image according to an embodiment of the present invention. Fig. 17 is a schematic diagram of a manufacturing system according to the present invention, including an embossing roll 210, a stencil 220, a substrate 230, an anilox roll 240, an ink tank 250, and a curing machine 260.

Referring to fig. 16 and 17, a method for preparing a precise microstructure for presenting a stereoscopic relief image, comprising:

S11, providing a template 220, wherein the template is provided with a reverse-printing precise microstructure;

S21, attaching ink on the stencil 220 by using the anilox roller 240;

S31, providing a substrate 230, and transferring a reverse precise microstructure of the stencil 220, to which the ink is attached, onto the surface of the substrate 230;

s41, curing;

in S11, the inverse microstructure on the master 220 corresponds to the desired microstructure relief without filling ink, specifically, the raised portion on the inverse corresponds to the groove portion on the microstructure, and the groove portion on the inverse corresponds to the raised 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 thereon, and the stencil 220 shown in fig. 15 is only schematic.

At least one of the anilox rollers 240 and more, the anilox roller 240 attaches ink in the ink reservoir 250 to the stencil 220.

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

The curing machine 260 cures the transferred substrate 230 to obtain the precise microstructure 1 filled with ink.

The inverse microstructure on the master 220 in fig. 17 is illustrative only.

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

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

In other embodiments, the steps S11 to S41 may be repeated, so that the precise microstructures of different inks may be positioned and transferred on one layer, or the preparation of double-sided precise microstructures, or the preparation of multi-layer precise microstructures may be realized, and a single-color or color effect may be achieved.

The preparation method of the template 220 comprises the steps of designing a three-dimensional relief image, preprocessing the image according to a Fresnel rule or contour slitting projection to obtain a periodic gray level image, providing a photoetching offset, photoetching the periodic gray level image to obtain a micro-nano substructure with an inclined plane on the photoetching offset, photoetching grooves on the micro-nano substructure, and copying the obtained photoetching offset to obtain the template 220.

In another embodiment, the method for preparing the template 220 comprises designing a stereoscopic relief image, preprocessing the image according to a Fresnel rule or contour 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, taking the rest part in the period as a non-photoetched part to obtain a periodic binary image, providing a photoetched plate, photoetching the periodic binary image to obtain a groove on the photoetched plate, and copying the obtained photoetched plate to obtain the template 220.

According to another aspect of the invention, the precision microstructure is mainly applied to packaging films, packaging papers, decorative textures, clothing, anti-counterfeiting cards or plastic banknotes and the like. The specific application of the precise microstructure is as follows. Of course, the pattern, material, thickness, or other parameters including the description of the above schemes, etc. of the precision structures on different application products may be the same or different.

Thermoprinting film

Referring to fig. 18, fig. 18 is a schematic structural diagram of a hot stamping film according to the present invention, and the hot stamping film according to an embodiment of the present invention includes a base film layer 6, a release layer 7, a precise microstructure layer 8, a dielectric layer 9, and a hot melt adhesive layer 10 sequentially disposed from top to bottom.

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

Preferably, the ink 811 is nano ink, the nano ink is partially or fully arranged in the grooves of the micro-nano substructure in a transfer printing or gravure mode, and the particle size of the nano ink is smaller than the width of the grooves on the micro-nano substructure. Referring to fig. 19, the thermo-printing film has positioning color codes 812, the positioning color codes 812 are located at two sides of the precise microstructure layer 8, and the positioning color codes 812 are convenient for the thermo-printing process to identify the thermo-printing.

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

In this embodiment, the dielectric layer 9 is made of metal aluminum, and may be made of metal material such as metal chromium or transparent medium such as zinc sulfide or magnesium fluoride. The base film layer 6 is preferably a PET film layer. The release layer 7 is convenient for stripping the precise microstructure layer 8 and the base film layer 6, and the release layer 7 can be replaced by the base film layer 6 with release effect or the precise microstructure layer 8 with release effect.

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 practical situations, 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 thermoprinting film of the embodiment is that firstly, a release layer 7 is coated on a base film layer 6 of a PET film layer, or the release layer 7 is not coated, and the base film layer 6 with release effect or a precise microstructure layer 8 with release effect is adopted. Then, a transparent coating is coated on the release layer 7, a plurality of micro-nano substructures are formed by transfer printing or gravure printing and are solidified, grooves are formed on the micro-nano substructures, nano ink is positioned and filled in the grooves, or the ink is coated and cleaned, so that the nano ink is only filled in the grooves. Then, vacuum evaporation is carried out on the dielectric layer 9, and the dielectric layer 9 can show gradual change or relief effect. Finally, a hot melt adhesive layer 10 is coated to obtain the thermoprinting film of the embodiment, and the layers form a composite layer of the thermoprinting film.

In another embodiment of the preparation method, the release layer 7 is coated on the base film layer 6 of the PET film layer, or the release layer 7 is not coated, and the base film layer 6 with release effect or the precise microstructure layer 8 with release effect can be adopted. Then, a transparent coating is coated on the release layer 7, a plurality of grooves and platforms connected with the grooves are formed through transfer printing or gravure printing and are solidified, nano ink is positioned and filled in the grooves, or the ink is coated and cleaned, so that the nano ink is only filled in the grooves. Then, vacuum evaporation is carried out on the dielectric layer 9, and the dielectric layer 9 can show gradual change or relief effect. Finally, a hot melt adhesive layer 10 is coated to obtain the thermoprinting film of the embodiment, and the layers form a composite layer of the thermoprinting film.

The hot stamping film is manufactured and printed integrally, two steps are not needed, 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 sequentially disposed from top to bottom, wherein a precise microstructure for forming a pattern area 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 substructures, grooves are disposed on the micro-nano substructures, and ink 122 is filled in the grooves.

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

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

Parameters and preparation methods of the base film layer 11, the precise microstructure layer 12 and the dielectric layer 13 are the same as those of the thermoprinting film embodiment, and the transfer film is a composite layer, and will not be described herein.

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 bottom paper layer 18 sequentially disposed from top to bottom, wherein the precise microstructure layer 15 is provided with a precise microstructure for forming a pattern area on a surface far from the base film layer 14, the precise microstructure includes a plurality of micro-nano substructures, grooves are disposed on the micro-nano substructures, and ink 152 is filled in the grooves.

In another embodiment, the precision microstructure layer 15 is provided with a precision microstructure for forming a pattern region on a surface far from the base film layer 14, and the precision microstructure includes a plurality of grooves and a land area connected thereto, and the grooves are filled with 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. 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 will not be described here. The base film layer 14, the precision microstructure layer 15 and the dielectric layer 16 are prepared and then are compounded with a roll-shaped white cardboard (base paper layer 18) coated with glue (hot melt adhesive layer 17) to obtain the compound paper of the embodiment, and the above layers form the compound layer of the compound paper. The precise microstructure on the precise microstructure layer 15 in fig. 21 is merely illustrative, 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.

Transfer paper

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

In another embodiment, the precision microstructure layer 19 has a precision microstructure disposed on a lower surface thereof, the precision microstructure including a plurality of grooves and lands, and the grooves are filled with ink 192.

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

According to the method, a precise microstructure is arranged on a hot stamping film, a transfer film, composite paper and transfer paper, the precise microstructure presents a three-dimensional relief effect, the micro-nano substructure comprises an inclined surface and presents a dynamic optical effect, ink is filled in the groove to present a colored effect through the arrangement of grooves on the precise microstructure, different inks are filled in different areas or different inks are filled in multiple layers to present a colored effect, three effects of color, dynamic light and shadow and the three-dimensional relief are finally combined on the precise microstructure, the width of the groove is smaller than 30 mu m, the micro-nano ink is filled in the groove, and the presented image is finer.

Meanwhile, the ink is only filled in the grooves, so that the use of the ink is reduced, the environment is protected, the subsequent printing is not needed, the process steps are reduced, and the cost is reduced.

Anti-fake card

Referring to fig. 23-24, the endorsement-able anti-counterfeiting card for multi-color stereoscopic dynamic images provided by the invention comprises a base layer, a first endorsement layer arranged on one side of the base layer, a first composite layer arranged on the first endorsement layer, a second endorsement layer arranged on the other side of the base layer and a second composite layer arranged on the second endorsement layer.

In one embodiment, as shown in fig. 23, the anti-counterfeit card includes 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 stacked in this order 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 that are sequentially stacked, where the first base film layer 231 is disposed on the first label layer 24. The first microstructure layer 232 is provided with a precise microstructure, the precise microstructure comprises a plurality of micro-nano substructures, grooves are formed in the micro-nano substructures, at least one color of ink is filled in the grooves, or the precise microstructure comprises a plurality of grooves and platform areas, at least one color of ink is filled in the grooves, the second composite layer 27 comprises a second base film layer 271 and a second protective layer 272 which are sequentially arranged, the second endorsement layer 26 is arranged 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 second composite layer 27 is different from the embodiment shown in fig. 23 in that it includes a second base film layer 271, a second microstructure layer 273, a second plating film layer 274, and a second protective layer 272, which are sequentially disposed. The second microstructure layer 273 is provided with a precise microstructure, the precise microstructure comprises a plurality of micro-nano substructures, grooves are formed in the micro-nano substructures, and at least one color of ink is filled in the grooves, or the precise microstructure comprises a plurality of grooves and a platform region, and at least one color of ink is filled in the grooves.

The first microstructure layer 232 and the second microstructure layer 273 in fig. 23 and 24 are only schematic, and the actual structure of the precise microstructure on the first microstructure layer 232 and the second microstructure layer 273 is shown in fig. 4a-4d, fig. 5a-5d and fig. 9, but not limited thereto.

In an embodiment of the anti-counterfeit 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 during heating, pressurizing and laminating.

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, the multiple images and graphic characters are supported by the first endorsement layer and/or the second endorsement layer, and the graphic characters comprise one or more of three-dimensional figures, co-located figures, dynamic floating-up sinking character figures and two-dimensional codes. The first coating layer is an opaque metal layer or a transparent medium layer, the first coating layer is used for protecting and enhancing the brightness of the first microstructure layer, the material of the opaque metal layer comprises one or more of chromium, aluminum and copper, and the material of the transparent medium layer comprises one or more of zinc sulfide, titanium dioxide and magnesium fluoride. The second coating layer is an opaque metal layer or a transparent medium layer, the second coating layer is used for protecting and enhancing the brightness of the second microstructure layer, the material of the opaque metal layer comprises one or more of chromium, aluminum and copper, and the material of the transparent medium layer comprises one or more of zinc sulfide, titanium dioxide and magnesium fluoride. The first protective layer is preferably adhered to the first coating layer, and the first protective layer is preferably a resin layer with good adhesion property with the first coating layer, so that the anti-counterfeiting card has the functions of oil stain resistance, fingerprint resistance and scratch resistance.

In one embodiment, the method for preparing the anti-counterfeit card comprises the following steps:

And 1, preparing a first composite layer. Specifically, a resin layer (UV cured resin layer) is coated on one side of a first base film layer 231, a first microstructure layer 232 is formed by transfer printing or gravure printing on the resin layer, a precise microstructure is arranged on the first microstructure layer 232, the precise microstructure comprises a plurality of micro-nano substructures, grooves are formed in the micro-nano substructures, ink filling is carried out on the grooves, or the precise microstructure on the first microstructure layer 232 comprises a plurality of grooves and platform areas, ink filling is carried out on the grooves, a first coating layer 233 is formed on the first microstructure layer 232 through vacuum coating, and a first protection layer 234 is formed on the first coating layer 233 through coating, so that a first composite layer is obtained.

And 2, preparing a second composite layer.

The preparation of the second composite layer includes coating a second protective layer 272 on the second base film layer 271.

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

Step 3, heating and laminating 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, wherein the first base film layer 231 in the first composite layer 23 is arranged on the first endorsement layer 24, and the second endorsement layer 26 is arranged on the second base film layer 271 in the second composite layer 27.

Step 4 of signing the image on the first and second endorsement layers 24, 26 as required in real time may also be included.

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

The texture of the anti-fake card can realize multicolor three-dimensional dynamic image effects with good luster such as dynamic, embossment and the like and has good anti-fake effect through precise photoetching; the double sides of the anti-fake card are provided with compact and precise micro-structure anti-fake effect, so that effective anti-fake can be realized, and the expressive force of the anti-fake 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 laminated and formed, and the anti-fake card is simple in process, good in stability and excellent in quality.

The multicolor stereoscopic dynamic image of the anti-counterfeiting card is realized by ultra-precise micro gravure, the ultra-precise micro gravure is greatly different from the prior gravure in terms of precision, the prior gravure precision is generally about 50um, the ultra-precise micro gravure is in the scale range of 5-50 um, the controllable range is large, the textures on the image can realize the effects of dynamic, embossment and the like with good gloss through precise photoetching, the manufacturing method of the anti-counterfeiting card is to coat UV resin glue on a flexible film (namely a base film layer), stamp 5-50 micrometer deep grooves on the surface of the UV resin glue by using a template with a precise microstructure, fill color ink into the grooves in a doctor-blade or coating mode, wash out the protruding part of the ink, so that the micro-nano substructure displays color, the color presents simultaneously with special effects, and is substantially different from the prior gravure.

Decorative texture

The decorative textures can be applied to the fields of home appliances, mobile phone back plates, cosmetic top covers or automobile decorations and the like.

Referring to fig. 25-29, fig. 25-29 are schematic structural views of different embodiments of the decorative textures according to the present invention, where the decorative textures provided by the present invention include a base layer and at least one composite layer disposed on the base layer, and the at least one composite layer includes a precise microstructure.

As shown in fig. 25, the present invention provides a decorative texture structure of a first embodiment, where the decorative texture structure includes a base layer 40, a first adhesive layer 41, and a first composite layer 42 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 film layer 421 is fixedly disposed on the base layer 40 through the first adhesive layer 41, a precise microstructure is disposed on the first microstructure 422, and includes a first precise microstructure main body layer 4221, a first film coating layer 4222, and a first ink layer 4223, a plurality of micro-nano substructures are disposed on the first precise microstructure main body layer 4221, and grooves or a plurality of grooves and lands are disposed on the first precise microstructure main body layer 4221, the first film coating layer 4222 is a structure imitating the surface shape of the precise microstructure main body layer 4221, the grooves on the first film coating layer 4222 correspond to the grooves of the first precise microstructure main body layer 4221, and the ink is filled in the grooves of the first precise microstructure main body layer 4221.

As shown in fig. 26, the present invention provides a decorative texture structure of a second embodiment, which includes 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 sequentially disposed 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, the second composite layer 44 includes a second thin film layer 441 and a second microstructure layer 442 sequentially disposed from top to bottom, the second thin 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 provided with a precise microstructure or other microstructures, such as, but not limited to, a laser micro-nano structure, a silver sub-micro-nano structure, and the like. Taking the second micro-nano structure layer 442 as an example, the second micro-nano structure layer includes a second micro-structure main body layer 4421, a second coating layer 4422 and a second ink layer 4423. The second coating layer 4422 has a conformal structure imitating the surface shape of the second precise microstructure main body layer 4421, the grooves of the second coating 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 coating 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 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 sequentially disposed from top to bottom, a precise microstructure is disposed on the first microstructure layer 422, and includes a plurality of micro-nano substructures, grooves are disposed on the micro-nano substructures, and ink is filled in the grooves, the first thin film layer 421 is fixedly disposed on the base layer 40 through the first adhesive layer 41, and the screen printing layer 45 is disposed on the first coating layer 423.

As shown in fig. 28, the present invention provides a decorative texture structure of a fourth embodiment, which includes 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 sequentially disposed 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. 27, and the second composite layer includes a second thin film layer 441 and a second microstructure layer 442 sequentially disposed from top to bottom, where the second microstructure layer 442 is provided with a precise microstructure or other microstructures, such as a laser microstructure, a silver sub-microstructure, and the like, but not limited thereto. The second microstructure layer 442 is provided with a precise microstructure, which includes a second precise microstructure main body layer 4421, a second coating layer 4422 and a second ink layer 4423, wherein the second precise microstructure main body layer 4421 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 4421 is provided with a plurality of grooves and platform areas, 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 are in one-to-one correspondence with the grooves on the second precise microstructure main body layer 4421, 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 a decorative texture structure of a fifth embodiment, which includes a base layer 40, a first adhesive layer 41, a first composite layer 42, and a second composite layer sequentially disposed from top to bottom. The first composite layer 42 comprises a first film layer 421 and a first microstructure layer 422, wherein a precise microstructure is arranged on the first microstructure layer 422, 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 substructures are arranged on the first precise microstructure main body layer 4221, grooves are arranged on the micro-nano substructures, 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 arranged on the first coating layer 4222, the grooves on the first coating layer 4222 correspond to the grooves of the first precise microstructure main body layer 4221 one by one, and the ink is filled in the grooves of the first coating layer 4222. The second composite layer is provided with a precise micro-structure or other micro-nano structures, such as a laser micro-nano structure, a 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', wherein the second coating layer 4422' is a conformal structure imitating the surface shape of the second micro-nano structure main body layer 4421', the grooves on the second coating layer 4422' are in one-to-one correspondence with the grooves of the micro-nano structure on the second micro-nano structure main body layer 4421', the second ink layer 4423' is filled in the grooves on the second 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 layers 442 and 442 'in fig. 25-29 are only schematic, and the first microstructure layer 422 and the second microstructure layers 442 and 442' are provided with precise microstructures, and the actual structures are shown in fig. 4a-4d, fig. 5a-5d and fig. 9, but not limited thereto.

In the embodiment of fig. 25-29, the base layer is transparent and flat glass or a composite board, the first adhesive layer is an OCA optical adhesive layer, the second adhesive layer is a PET film, the thickness range of the first film layer is 25-200 μm, the preferred thickness range is 50-100 μm, the first microstructure layer is a UV adhesive layer, the first ink layer is nano ink, the nano ink is scraped by a metal scraper and filled in a groove of the micro-nano substructure, the second ink layer is nano ink, the thickness range of the second ink layer is 10-15 μm, and the second ink layer is white ink or black ink, so that the substrate covering function can be realized. The first coating layer and the second coating layer are made of materials such as a brightness enhancement film, an antireflection film, siO2, indium and the like, the thickness range is 80-260 nm, the thickness is preferably 140nm, the functions of brightness enhancement, antireflection and medium color are achieved, the first coating layer and the second coating layer are prepared by adopting an evaporation plating or vacuum sputtering process, the silk-screen layer is an ink layer and is made by adopting 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 a substrate can be achieved.

The decorative texture of the invention is to transfer the micro-nano texture on the base material by using micro-nano lithography technology, and the precise microstructure is arranged on the base material, thereby presenting the effects of three-dimension, light shadow and color. Compared with the traditional gradient color, the color-changing type multifunctional color-changing material is softer, more comfortable in visual sense and sense, capable of achieving a dazzling effect of textures, capable of achieving more various effects, and wider in application field, such as mobile phone decoration, automobile interior decoration, cosmetic top covers, surface textures of household appliances and the like. The method solves the problems that the pattern color is relatively monotonous, the superposition gradual change effect of 2-3 colors can be realized, and multicolor change cannot be realized in the prior art. FIG. 30 is a diagram showing the effect of the ink and wash painting according to the present embodiment.

The same layer names in the different products or embodiments do not represent that the relevant parameters such as the materials, the components, the thicknesses or the patterns and the like are necessarily the same, can be the same or different, and can be selected or manufactured according to actual needs. The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

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", etc. refer to the directions or positional relationships based on those shown in the drawings, and are merely for clarity and convenience of description of the expression technical solution, and thus should not be construed as limiting the present invention.

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

In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements is included, and may include other elements not expressly listed.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are 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. The 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, wherein 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 the first adhesive layer, a precise microstructure is arranged on the first microstructure layer, and the precise microstructure comprises a first precise microstructure main body layer, a first coating layer and a first printing ink layer;

A plurality of micro-nano substructures are arranged on the first precise microstructure main body layer, and grooves are formed in the micro-nano substructures; the micro-nano substructure is arranged according to a preset rule, including arrangement according to a Fresnel rule or arrangement according to an equal-width slitting projection rule, and further comprises at least one inclined plane for reflecting light rays to generate a light shadow effect, wherein the ratio of the width of the groove on each micro-nano substructure to the period of the micro-nano substructure is K, and the ratio K of different micro-nano substructures is the same;

The first coating layer is of a conformal structure imitating the surface shape of the main body layer of the precise microstructure, grooves are formed in the first coating layer, the grooves in the first coating layer correspond to the grooves in the main body layer of the precise microstructure one by one, and the ink of the first ink layer is filled in the grooves in the first coating layer.

2. The stereoscopic light shadow color decorative texture of claim 1, wherein the base layer is transparent and flat glass or a composite plate;

the first adhesive layer is an OCA optical adhesive layer;

3. The stereoscopic light shadow color decorative texture of claim 2, wherein the thickness of the first film layer is in the range of 50 μm to 100 μm;

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

4. The stereoscopic light shadow color decorative texture of claim 1, further comprising a second glue layer and a second composite layer, wherein 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 the second glue layer, and the second microstructure layer is provided with a precise microstructure, a laser microstructure or a silver sub-microstructure.

5. The stereoscopic light shadow color decorative texture of claim 4, wherein the second microstructure layer is provided with a precise microstructure, the precise microstructure on the second microstructure layer comprises a second precise microstructure main 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 are in one-to-one correspondence with the grooves of the second precise microstructure main body layer, and the second ink layer is filled in the grooves on the second coating layer.

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

7. The stereoscopic light shadow color decorative texture of claim 1, further comprising a second composite layer having a precision microstructure, a laser microstructure, or a sub-silver microstructure disposed thereon.

8. The stereoscopic light shadow color decorative texture of claim 7, wherein the second composite layer comprises a second micro-structural layer, the second micro-structural layer comprises a second micro-nano structural body layer, a second coating layer and a second ink layer, the second coating layer is of a conformal structure imitating the surface shape of the second micro-nano structural body layer, grooves on the second coating layer correspond to grooves of the micro-nano structure on the second micro-nano structural body layer one by one, the second ink layer is filled in the grooves on the second coating layer, and the second micro-nano structural body layer is arranged on the first composite layer.

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

10. The 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, wherein 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 substructures, grooves are formed in the micro-nano substructures, and ink is filled in the grooves; the micro-nano substructure is arranged according to a preset rule, including arrangement according to a Fresnel rule or arrangement according to an equal-width slitting projection rule, and further comprises at least one inclined plane for reflecting light rays to generate a light shadow effect, wherein the ratio of the width of the groove on each micro-nano substructure to the period of the micro-nano substructure is K, and the ratio K of different micro-nano substructures is the same;

11. The stereoscopic light shadow color decorative texture of claim 10, further comprising a silk screen layer disposed on the first coating layer, wherein the silk screen layer is an ink layer, and the thickness of the silk screen layer ranges from 10 μm to 15 μm.

12. The stereoscopic light shadow color decorative texture of claim 10, further comprising a second glue layer and a second composite layer, the second composite layer comprising a second film layer and a second microstructure layer sequentially disposed from top to bottom, the second microstructure layer having a precision microstructure, a laser microstructure, or a silver sub-microstructure disposed thereon, the second film layer being fixedly disposed on the first composite layer by the second glue layer.

13. The stereoscopic light shadow color decorative texture of claim 12, wherein the precise microstructure on the second microstructure layer comprises a second precise microstructure main body layer, a second coating layer and a second ink layer, wherein 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 stereoscopic light shadow color decorative grain of claim 13, wherein the second glue layer is an OCA optical glue layer;