KR100989876B1 - Printing method for hologram effect - Google Patents

Abstract

PURPOSE: A printing method for a hologram effect is provided to implement a hologram effect on a desired specific area and letters while maintaining the clearness of a printed image. CONSTITUTION: A plurality of dots in unit area are formed on the back side of a fabric(10). Lens dot on the fabric is more or less than the number of the dot on the back side of the fabric. A printed layer(20) is formed on the back side of the fabric. A convex lens(30) is formed in the lens dot of the fabric.

Description

Printing method for hologram effect {PRINTING METHOD FOR HOLOGRAM EFFECT}

The present invention relates to a printing method for the hologram effect,

More specifically, the intersection of two specific values in the specific part to be expressed as the color change of the cell caused by light on the back side of the to-be-printed material and then reacting with each other by silk-printing the convex print of the specific value to the front of the to-be-printed object. The present invention relates to a new holographic three-dimensional printing method that obtains the effect of visual hologram by changing the color value seen according to the viewing direction, the light direction, and the divided area by finding and expressing.

In general, printed matter is a planar image, and many attempts have been made to implement such a planar image as a stereoscopic image. As an easy example, a method of realizing a stereoscopic image using a lenticular screen in which semi-circular lenses are continuously arranged on a surface has been proposed.

As a more specific example, there is a three-dimensional printing sheet disclosed in the Utility Model Registration Application No. 20-2003-2405, which forms a convex lens on the fabric, and uses the convex lens to sense the distance between the printed images printed on the back of the fabric. It is a technology that can realize a three-dimensional image by generating this.

According to the Utility Model Registration Application No. 20-2003-2405, the three-dimensional printing sheet includes a convex lens layer, a non-focal length printing layer, a transparent lens layer, and a focal length printing layer. Since the three-dimensional printing sheet has a focal length printing layer formed at the focal length of the convex lens layer by the transparent lens layer, the text printed on the non-focal length printing layer and the text printed on the focal length printing layer have different distances. Making it appear as if it has it allows for stereoscopic imagery.

However, such a three-dimensional printing sheet is a convex lens layer, a non-focal length printing layer, a transparent lens layer, a focal length printed layer in sequence, and the focal length printed layer must be located at the focal length of the convex lens layer, so the work process is very This becomes complicated and requires high precision work, resulting in an increase in product failure rates.

In addition, the convex lens layer as described above is expensive because of the complexity of the process, there is a problem that the manufacturing cost increases when manufacturing the printed material using the fabric having such a convex lens layer.

In addition, when manufacturing a product using a sheet exhibiting a three-dimensional effect as a whole, for example, when printing a bar code, the current recognition device does not recognize the bar code, there is a problem such as having a limitation in the production of the product. As a result, it is possible to provide competitive price while providing letters, symbols, and patterns that require conventional recognition, as well as offering products that can achieve stereoscopic printing in a variety of types (small or large quantities can be produced according to demand). There is a need to present new methods for manufacturing products.

Applicant of the present invention has proposed a method for solving this problem through the Patent Publication No. 2009-0114600 (November 04, 2009) [selective three-dimensional printing method and printed matter of the specific pattern],

Further, it is necessary to form convex lens layer, non-focal length printing layer, transparent lens layer, and focal length printing layer in sequence, and do not go through the complicated process of placing the focal length printing layer at the focal length of the convex lens layer. It is not possible to reduce the defect rate of goods because precision work is not required, and on the other hand, it is possible to propose a new printing method that can achieve the effect of visual hologram by changing the color values seen according to the direction of the person, the direction of light, and the divided area. Reached.

Accordingly, the present invention was developed to solve the above problems, and an object of the present invention is to specify a specific two value at a specific part to be expressed as a color change of a cell by light, and then print the specific two values on the back surface of the to-be-printed object. New holographic three-dimensional printing that obtains the effect of visual hologram by changing the color values seen according to the viewing direction, light direction, and divided area by silk-printing the convex printing of the value on the front surface of the to-be-printed material. It is to provide a method and a printed matter thereby.

According to the present invention for solving the above problems, the process of forming a plurality of mesh dots per unit area in the lattice form on the back of the fabric, and relatively more or relatively than the halftone of the back surface of the fabric on the front of the fabric Forming a lens dot with a small number, forming an offset printing layer on the dot formed on the back of the fabric, and lens printing forming a convex lens on the lens dot on the front surface of the fabric. There is provided a printing method for the hologram effect.

The front surface of the fabric is formed with a plurality of lens halftone region having a smaller number of lens halftones than the reference lens halftone, wherein the lens halftone region is a first lens halftone region having a relatively smaller number of halftones than the reference lens halftone; A second lens half point region having a larger number of half points than a reference lens half point is alternately provided, and the second lens half point region is provided on all sides of the first lens half point region, and is provided on all sides of the second lens half point region. The first lens half point region is provided, and the lens half point is formed on the first lens half point and the second lens half point, respectively, to produce a visual hologram effect of the printed layer color printed on the back surface of the fabric. Characterized in that.

The printing layer on the back surface of the fabric has a structure in which a halftone color is printed on a background color, and the background color and the halftone color of the printing layer are characterized in that they have a configuration that looks different depending on light and viewing angle.

The convex lens formed on the lens half point is composed of a flat portion of the center portion and a curved portion of the circumference of the flat portion, and the focal length of the convex lens is adjusted differently according to the size of the flat portion of the convex lens, so that the printed layer is Characterized in that it has a hologram function that is recognized in three dimensions.

In the lens forming step, the convex lens region is formed by screen printing or offset printing.

The print layer formed on the back of the fabric is characterized in that the print layer is configured so that the number of different dots per unit area is combined.

The cross line forming the lens half point is formed in an X shape inclined with respect to the transverse and longitudinal direction of the fabric, and preferably, the shape of the lens half point formed by the cross line is a quadrangle, and preferably, The angle is 45 ° and the number of intersection lines is 120 lines per inch, and preferably, the size of the convex lens formed on the lens half point is 50% to 60% of the lens half point.

On the back side of the fabric is characterized in that a white (or other color) printing layer and a protective printing layer for the print layer appearance further formed on the background of the printing layer.

In addition, the present invention is characterized in that a printed matter formed by the above-described printing method is provided.

The present invention can be maintained while maintaining the clarity of printed images such as patterns or letters in other areas without performing complicated processes such as forming a convex lens layer, a non-focal length printed layer, a transparent lens layer, and a focal length printed layer. Characters or patterns in a specific area can be printed in three dimensions to have a hologram effect.

In other words, by designing to have a deviation between the number of halftone dots for the printed layer and the number of lens halftones for the convex lens, the visible color value is changed according to the viewing direction, the light direction, and the divided area, thereby having the effect of visual hologram. As the number of lens dots formed on the fabric and the number of dots for printed layers vary, the shape of the visually appearing network becomes smaller or larger, resulting in a variety of visual image of the printed color. The size depth of can be expressed in various ways, and by this principle, the effect of various holograms can be obtained ultimately.

In addition, in the present invention, the front surface of the fabric forms a plurality of lens halftone regions having a smaller or relatively larger number of lens halftones than the reference lens halftone, and the lens halftone region has a relatively smaller number of halftone dots than the reference lens halftone. The first lens half point region and the second lens half point region having a larger number of half points than the reference lens half point are alternately provided, and the second lens half point region is provided on all sides of the first lens half point region, and the second lens half point is provided. By constructing a structure having a first lens half point region on all sides of the region, and forming a lens half point on the first lens half point and the second lens half point, respectively, so as to intersect the highest point of the applied network and the highest entry point of the network. As you can see, the value of the color changes depending on the viewing direction and the direction of the light, so that the visual hologram You can have an effect.

In addition, since the printed layer on the back surface of the fabric has a structure in which a halftone color is printed on the background color, the background color of the printed layer and the halftone color are different depending on light and viewing angle, and thus the holographic effect can be further emphasized visually. . In the offset, the network value is expressed by dividing it into two types. By arranging the maximum value of the convex lens in which the color appears and the maximum value of the convex lens in which the color appears, the division of the plane is performed even if the same color is not used. Various stereoscopic images can be expressed by giving a holographic feeling. In other words, it is possible to express various colors, and various diverse and various design applications are possible by constructing a regular irregular arrangement of the divided areas of the lens dot and the dot of the printed layer.

On the other hand, in the present invention, each convex lens printed on the lens halftone of the front surface of the fabric may be composed of a flat portion of the central portion, and the curved portion of the flat portion 32, in this case, according to the large and small flat portion of the convex lens By adjusting the focal length of the convex lens differently, the printed layer may have a hologram function visually recognized as a three-dimensional shape. In addition, the convex lens is not a spherical sphere, but the center portion is composed of a flat portion and the remaining outer portion is formed of a curved portion, whereby the refractive index of the printing layer color transmitted through the flat portion of the convex lens is different from that of the printing layer color transmitted through the curved portion. Therefore, it is essential that the printing color passing through the convex lens can be more emphasized the three-dimensional effect that appears in various ways depending on the angle of view, light direction, and the like.

In addition, in the present invention, by forming a white (or other colored) print layer and a protective print layer for the print layer appearance on the back of the fabric as a background of the print layer, the color of the print layer is more convexly convex by the white print layer. The white print layer allows the printed layer color to be formed out of the convex lens focus, so that the printed color can be more prominently displayed. This also produces a three-dimensional effect of the printed color. You can contribute more.

1 is an enlarged photograph showing a printing layer constituting a printed matter by the printing method of the present invention.
FIG. 2 is an enlarged view conceptually showing a halftone dot formed in a unit area of a fabric shown in FIG. 1;
Figure 3 is an enlarged photo showing the convex lens constituting the printed matter by the printing method of the present invention.
4 is an enlarged photo showing a convex lens and a printed layer shown in FIGS. 1 and 3, respectively.
5 is an enlarged photograph showing a state in which structures of the convex lens and the print layer illustrated in FIG. 4 are configured differently.
Figure 6 is a longitudinal sectional view conceptually showing the structure of a printed matter by the printing method of the present invention.
7 is a view conceptually showing an embodiment in which the number of convex lenses is composed of different regions in the fabric of the printed matter of the present invention.
8A, 9A, 10A, 11A, and 12A are enlarged photographs showing an embodiment in which the number of convex lenses is formed in the fabric more than the number of dots for printing layers, respectively.
8B, 9B, 10B, 11B, and 12B are enlarged photographs showing an embodiment in which the number of convex lenses is formed in the fabric less than the number of dots for printing layers, respectively.
13 to 15 are photographs showing the holographic three-dimensional printing portion of the print formed by the present invention.
16 and 17 conceptually show the principle of forming holographic three-dimensional printing in the printing method of the present invention.
18 is a longitudinal sectional view showing a structure of a printed matter according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

The present invention may be modified in various ways and may have various forms, and thus embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In addition, in the drawings, the components are exaggerated in size (or thickness), in size (or thickness), in size (or thickness), or in a simplified form or simplified in view of convenience of understanding. It should not be.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

The printing method for the hologram effect according to the present invention, as can be seen in Figures 1 to 5, (a) the process of forming a plurality of mesh dots 22 per unit area on the back of the fabric 10 in a lattice shape and (b) forming a lens dot in the front surface of the fabric 10, which is relatively more or less than that of the mesh dot 22, and (c) in each dot 22 formed on the back surface of the fabric 10; (D) forming a convex lens 30 on the lens halftone of the front surface of the fabric 10 to form a printed layer 20, and a lens printing process of having a plurality of convex lenses 30 in a rectangular shape. Is done.

Moreover, this invention relates to the printed matter which has the hologram effect obtained by such an incineration method.

In the printing method for the hologram effect according to the invention (a) forming a plurality of halftones per unit area on the back of the fabric 10, (c) the halftone formed on the back of the fabric (10) Forming the print layer 20 on the 22 and

(b) forming a lens half point on the front surface of the fabric 10 in a greater or lesser number than the halftone 22 on the back surface of the fabric 10; and (d) the front surface of the fabric 10; The lens printing process of forming the convex lens 30 on the lens half point of

If necessary, the process can be combined in various orders, except that (a) must be performed before (c) and (b) must be performed before (d).

In addition, when the printing layer 20 on the back side of the fabric 10 further includes a structure in which a halftone color is printed on the background color ('DSI' corresponds to the photo of FIGS. 8A to 12B), the printing order of the background color Can proceed regardless of (a) and (c) or (b) and (d).

However, a specific printing order may be selected to optimize manufacturing convenience and mass production.

As shown in FIG. 7, the present invention crosses the back surface of the fabric 10 in an approximately X-shape with respect to the transverse and longitudinal directions on the back surface of the fabric 10 with the fabric 10 having a flat surface (plastic sheet fabric 10) prepared. A plurality of halftones 22 are formed in a lattice form by a plurality of intersecting lines extending, and a color is printed on the halftones 22 to form a printed layer 20, and the front surface of the fabric 10 is provided. The convex lens 30 is formed on the lens half point by screen printing.

At this time, in the present invention, it is important to form a relatively large number or a relatively small number of lens dots for printing the convex lens 30 as compared with the number of dots 22 for forming the printed layer 20, and the fabric 10 By constructing the number of the half-dot 22 and the lens half-dot and the convex lens 30 on the back side it is possible to achieve the hologram effect of the printed layer (20).

In other words, when the fabric 10 is prepared, the operator prepares a film for offset printing according to a required manuscript in advance, and prints the printed layers 20 on the halftones 22 formed on the back surface of the fabric 10. In this case, the operator prints the printing layer 20 on the halftone dot 22 on the back surface of the fabric 10 using the offset printing film. In this case, the printing layer 20 may be formed by screen printing in addition to the method of forming by offset printing, and any known printing method capable of implementing other colors may be adopted.

After the printing layer 20 is printed on the halftone dot 22 on the back surface of the fabric 10, the convex lens 30 is formed on the front surface of the fabric 10 by using a screen printing technique. The screen printing original used for such screen printing is used after being manufactured separately using a conventional silk film. If necessary, the convex lens may be formed using offset printing or other known printing method.

The silk film film is produced in advance by the operator in consideration of the bow and size angle of the halftone 22 is printed on the back of the fabric (10). At this time, it is important to form the lens half-point bow of the silk film film relatively large or relatively small compared to the number of half-dots 22 on the back of the fabric 10, such a halftone 22 and convex for the printed layer 20. By varying the number of lens halftones for the lens 30, the convex lens 30 is printed on each lens halftone, and the convex lens 30 is disposed at a position that deviates from the halftone 22 of the printed layer 20. By taking the configuration, the color value of the printed layer 20 seen by the direction of light, the viewing direction, the divided area, etc. is differently seen three-dimensionally, and thus various hologram effects of the printing color can be achieved.

The key point of the present invention is to offset the two specific values on the back side of the to-be-printed object in a specific part to be expressed as the color change of the cell by light, and then to print the convex print of the specific value to the front of the to-be-printed material to react with each other. By finding and expressing the intersection point, the visible color value is changed according to the viewing direction, the direction of light, and the dividing area, thereby having the effect of visual hologram.

In the present invention, the basic principle of printing the convex lens 30 is by what mutual relationship the lens dot of the convex lens 30 and the dot 22 of offset printing are seen.

In order to effect the hologram, the printing layer and the lens formed on the fabric may have various printing characteristics such as a specific bow value, but it is necessary to formalize and select a specific value for mass productivity and hologram quality.

The present inventors experimented with changing the shape or size of a specific bow, angle, lens halftone with respect to the lens.

As a result, the intersecting lines forming the lens halftone are formed in the X-direction inclined with respect to the transverse and longitudinal directions of the fabric 10, and the shape of the lens halftone formed by the intersecting lines is a quadrangle (fabric 10). On the basis of the width and height, the diamond type has been found to be advantageous in favor of obtaining the desired quality (such as height and uniformity) of the lens (from which a uniform and controlled hologram effect can be obtained).

Furthermore, it is advantageous that the number of intersection lines forming the lens half point is 120 lines per inch, and the angle of the intersection lines is 45 °. In addition, the size of the convex lens 30 formed in the lens half point is 50% to 60% of the lens half point, and when it is this value, the hologram characteristic is uniform and shows the desired quality.

In general, the higher the player, the better the clarity.

In addition, when the printing layer 20 on the back of the fabric 10 further includes a structure in which a halftone color is printed on the background color ('DSI' corresponds to the picture of FIGS. 8A to 12B).

(These background colors are typically for characters, symbols, or patterns, such as barcodes and trade names, which require high visibility.) (DSI in the picture of FIGS. 8A-12B is Adopted player 175 for smooth image, 140 ~ 175 line if necessary),

In order to provide excellent hologram characteristics through the contrast between the background color and the hologram image, the number of intersecting lines forming the lens half point is preferably 120 lines per inch.

In addition, the angle of the intersection line forming the lens half point is 45 °,

The larger the size of the lens halftone, the more clear the color (that is, the color of the printing layer 20), but the lens halftone should be clearly expressed, so it is preferable to set the value to 50 to 60%.

In addition, the value of the convex lens 30 (that is, the number of the convex lenses 30) is determined based on the offset value, that is, the number of offset printed layers 20 is found.

When the number of basic lines forming the lens halftone for the convex lens 30 is 120 lines per inch, the 120 line means that the number of lens halftones per inch formed by the crossing players is 120. There are 120 lens dots per inch, and one lens half point has a size of 0.212 mm.

Here, the angle of the lens half point is the same, and the size of the offset half point 22 is different according to the expression. If the offset half point 22 is large, it is dark, and if it is small, it is cloudy.

The offset data is arranged based on 120 lines (120 points per inch) of the convex lens 30, and the number of convex lenses 30 that are sequentially changed is arranged by arranging values of 110 to 130 lines. In theory, when the offset printed layer 20 has 120 lines (that is, the number of halftone dots) has a value of 1: 1, when the convex lens 30 is applied, it may be seen that it does not look three-dimensional but spreads. .

To sum up, the shape of the net coming out of the 110 line is small, and as the player goes up, the shape of the net is getting bigger. Have

In other words, referring to FIGS. 8A to 12B, FIG. 8A shows that the number of the convex lenses 30 is one larger than the number of reference dots 22 for the print layer 20 per inch, and FIG. 8B. Shows that the number of the convex lenses 30 is one smaller per inch than the number of reference meshes 22 for the print layer 20, as shown in FIGS. 8A and 8B. By designing to have a deviation between the number and the number of lens halftones for the convex lens 30, the visible color value is changed according to the viewing direction, the direction of the light, and the divided area to have the effect of visual hologram.

In addition, FIGS. 9A to 12A and 9B to 12B show that the number of lens half points is different from those of FIGS. 8A and 8B (printed layer 20 as '+' and '-' at the upper left corner of the photo, respectively). The degree of deviation between the number of mesh dots 22 and the number of lens dots for the convex lens 30) and the number of lens dots and the dots 22 for the printed layer 20 vary. The shape becomes small or large, and the size of the image of the printed color to be visually shown varies.

Accordingly, the present invention can express various sizes of three-dimensional depths of the color of the printed layer 20 by the above principle, and ultimately, various holograms can be obtained by this principle.

Meanwhile, in the present invention, the front surface of the fabric 10 forms a plurality of lens halftone regions 15 having a smaller or relatively larger number of lens halftones than the reference lens halftone, and the lens halftone region 15 is a reference. The first lens half point region (1) smaller than the number of lens half points (in the present invention, the reference lens half point is set to 120, but the number of reference lens half points may vary) and the second lens having a relatively larger size than the reference lens half point. The half-point regions ② are alternately provided, and at the same time, the second lens half-point regions ② are disposed on all sides of the first lens half-point region ①, and the first lens half-point regions are disposed on all sides of the second lens half-point regions ②. The convex lens 30 is printed on each lens half point of the first lens half point region ① and the second lens half point region ②.

Then, the visual hologram effect of the color printed on the back side of the fabric 10 can be further emphasized. That is, by configuring the highest point (①) of the network and the highest point (②) of the network to be applied to each other to cross each other, the color value seen according to the viewing direction, the direction of the light changes, thereby having a more emphasized visual hologram effect.

In addition, the printing layer 20 on the back of the fabric 10 is made of a structure in which the halftone color is printed on the background color, and the background color and the halftone color of the printing layer 20 look different depending on the light and viewing angle, so that the visual This will further emphasize the hologram effect.

In summary, the present invention reacts each other by offset printing two specific values on the back side of the to-be-printed object in a specific part to be expressed as color change of the cell by light and silk printing the convex print of the specific value to the front of the to-be-printed object. By finding and expressing an intersection point, a new holographic three-dimensional printing method and a printed material by which a visual hologram can be obtained by changing color values according to a viewing direction, a light direction, and a divided area may be provided.

In addition, the color value shown by the hologram expresses the two colors on the offset dot 22 (the dot 22 for the print layer 20) so that the color of the mesh and the background color are displayed differently depending on the angle of light and viewing. The effect of hologram etc. can be acquired more reliably.

In addition, the present invention divides the value of the net into two in the offset, the maximum value of the convex lens 30 is visible and the color of the printed layer 20 and the maximum value of the convex lens 30 is shown. Even if the same color is not a three-dimensional feeling by arranging, a colorful three-dimensional image can be expressed by giving a holographic feeling through the division of a surface. That is, various colors can be expressed, and various diverse and various design applications are possible by constructing a regular irregular arrangement of the divided areas of the lens dots and the dots 22 of the printing layer 20.

On the other hand, the core of the present invention is to form a lens half point player for the convex lens 30 relatively large or relatively small compared to the number of half point 22 for the print layer 20 on the back of the fabric 10, each lens half point By printing the convex lens 30 on each of them, the color value of the printed layer 20 shown by the direction of light, the viewing direction, the divided area, etc. is differently seen three-dimensionally, which makes it possible to produce a hologram effect. It can also be explained by the principle of the image and the distance between the lens and the focal length (F, F ').

In other words, as shown in FIG. 16, when the object AB (in the present invention, the printed layer 20) is outside the focal point F ′ of the convex lens 30, the image A′-B ′ is inverted. This occurs, and as shown in Fig. 17, when the object AB is in the focal point F ', a standing virtual image A'-B' is generated.

In the present invention, the halftone point 22 and the print layer 20 formed on the back surface of the fabric 10 have a value of the convex lens 30 (that is, the number of the convex lenses 30) formed on the front surface of the fabric 10. By forming a relatively small or relatively small number of the number of the, the image of the image transmitted through the convex lens 30 formed by the convex lens 30 is determined by the viewing angle, the direction of light, the divided area, etc. Since it looks various as shown, the print color can be seen as a three-dimensional shape (hologram) rather than a plane.

In FIGS. 8A to 12A, the number of the convex lenses 30 (that is, the number of lens dots) is configured to be relatively larger than the number of dots 22 for the print layer 20, so that the print color is viewed by the human eye. There is a phenomenon (protruding image) that protrudes forward at a time, and in FIG. 8B to FIG. 12B, the number of convex lenses 30 (that is, the number of lens halftones) is relatively larger than the number of halftones 22 for the printed layer 20. Since the number of the halftone dots of the convex lens 30 and the halftone dots 22 for the printed layer 20 are different from each other, since there is a small number, the phenomenon in which the print color is seen inside (a standing virtual image) when viewed by the human eye occurs. By configuring the halftone region 15 on the fabric 10, it is possible to produce a colorful and various visual hologram effect of the print color.

In addition, in the present invention, the printed layer 20 formed on the back surface of the fabric 10 is configured such that the printed layers 20 (offset printed layers 20) having different numbers of dots 22 per unit area are combined. Therefore, the printing color of each corresponding area can be more surely produced with a three-dimensional effect that looks outward or inward. The difference in the focus (F, F ') distance may be caused by the convex lens 30 by the deviation of the offset degree from the printing background to the area, so that the holographic effect of the printing color is changed in three dimensions more perfectly. It can be.

And, in the present invention, each convex lens 30 printed on the lens halftone of the front surface of the fabric 10, as shown in Figure 6a, is composed of a circular semi-spherical shape.

At this time, as another embodiment of the present invention, as shown in Figure 6b, the convex lens 30 is printed on the lens halftone on the front surface of the fabric 10, the flat portion 32 of the central portion, and such a flat portion 32 It may be adopted as an embodiment composed of the curved portion 34 of the circumference. As the flat portion 32 of the convex lens 30 shown in FIG. 6B is larger and smaller, the focal lengths F and F 'of the convex lens 30 are adjusted differently so that the printed layer 20 is visually three-dimensional. Another feature would be to have a perceived hologram function.

If the convex lens 30 is not a round hemisphere, but the central portion is composed of a flat portion 32, the remaining outer portion is composed of a curved portion 34, the flat portion 32 of the convex lens 30 is transmitted Since the refractive index of the color of the printed layer 20 and the color of the printed layer 20 transmitted through the curved portion 34 are different, it is essentially different depending on the angle of view and the direction of light of the printed color through the convex lens 30. It will be able to emphasize the three-dimensional appearance that is clearly.

In addition, in the present invention, as can be seen in Figure 18, on the back of the fabric 10 to form a white (or other color) printed layer 45 for the print layer appearance in the background of the printed layer 20, A protective printed layer can be further formed on this. If desired, only a protective print layer (or coating) (for scratch-proof or abrasion resist properties, etc.) can be formed without the white (or other colored) print layer 45,

In addition, when such a protective printed layer is colored, the protective printed layer may serve as a white (or other colored) printed layer for printing layer appearance.

When the additional colored printed layer 45 is further formed, the color of the printed layer 20 may be more reliably formed outside the focal point F ′ of the convex lens 30 due to the colored printed layer 45. By the colored printing layer 45, the color of the printed layer 20 is formed outside the focal point F ′ of the convex lens 30, so that the printed color can be more prominently displayed. It can contribute more to creating a stereo effect.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various permutations, modifications, and changes can be made without departing from the spirit of the present invention. It will be apparent to those who have it.

10. Fabric 20. Printed layer
22. Dots 30. Convex Lens

Claims (6)

Forming a plurality of meshes 22 per unit area on the back surface of the fabric 10;
Forming a lens half point on the front surface of the fabric 10 in a greater or lesser number than the halftone 22 on the back surface of the fabric 10;
Forming a printing layer (20) on the halftone (22) formed on the back surface of the fabric (10); And
And a lens printing process of forming a convex lens (30) on the lens halftone of the front surface of the fabric (10). The method of claim 1,
A plurality of lens halftone regions 15 are formed on the front surface of the fabric 10 with a smaller number of lens halftones than the reference lens halftone.
The lens halftone region 15 may include a first lens halftone region ① having a smaller number of halftones than a reference lens halftone.
The second lens half-point area ② having a larger number of half-points than the reference lens half-point is alternately provided and
The second lens half-point region ② is provided on all sides of the first lens half-point region ①, and the first lens half-point region ① is provided on all sides of the second lens half-point region ②. To have,
The printing layer printed on the back surface of the fabric 10 by printing the convex lens 30 on each lens half point of the first lens half point region ① and each lens half point of the second lens half point region ②. (20) A printing method for the hologram effect, characterized by producing a visual hologram effect of color. The method of claim 1,
The printing layer 20 on the back of the fabric 10 is made of a structure in which a halftone color is printed on a background color, and the background color and the halftone color of the printing layer 20 are different from each other depending on light and viewing angles. Printing method for the hologram effect, characterized in that it has a. The method according to any one of claims 1 to 3,
The printing layer (20) formed on the back of the fabric (10) is a printing method for the hologram effect, characterized in that configured to combine the printing layer (20), each having a different number of dots (22) per unit area. The method according to any one of claims 1 to 3,
Intersecting lines forming the lens half point are formed in the X-direction inclined with respect to the horizontal and longitudinal direction of the fabric 10,
The shape of the lens half point formed by the intersecting line is a printing method for the hologram effect, characterized in that the rectangular. delete

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