KR101894632B1 - Object to be printed with hidden function and method of manufacturing the same - Google Patents

Abstract

Disclosed is a substrate, particularly a retroreflective film, having a hiding function, and a method for producing the same. The printed body includes a printed layer on which a pattern is formed and a printed layer formed on the printed layer. Here, the ink of the printing layer contains a metal complex salt dye as a main component.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a substrate having a hidden function,

The present invention relates to a substrate having a hidden function and a method of manufacturing the same.

In the conventional retroreflective film, the color of the pattern (image) is exposed to the outside regardless of the reflection of light. Therefore, when the color of the pattern is a color, the color color is unnecessarily exposed to the user in a sufficient situation even if the color color is not exposed, which may cause inconvenience to the user.

KR 10-1647389 B

An object of the present invention is to provide a substrate having a hidden function, particularly a retroreflective film and a method for producing the same.

According to an aspect of the present invention, there is provided an image forming apparatus comprising: a substrate; And a second printing layer formed on the upper printing layer. Here, when light is not reflected by the substrate, a color different from the original color of the pattern is exposed to the outside, and when the light is reflected by the substrate, the original color of the pattern is exposed to the outside.

According to another aspect of the present invention, there is provided a body to be printed comprising: a patterned upper printed layer; And a printing layer formed on the upper printing layer. Here, the ink of the printing layer contains a metal complex salt dye as a main component.

According to an embodiment of the present invention, there is provided a method of manufacturing a print product, including: forming a patterned upper printed layer; And printing the ink containing a metal complex salt dye as a main component on the upper printed layer to form a second printed layer.

A printed body and a method of manufacturing the same according to the present invention form a printed layer composed mainly of a metal complex dye on a printed layer on which a pattern (image) is printed, and as a result, when there is no reflection of light, The original color of the pattern can be exposed to the outside only when the color, especially black and white, is exposed to the outside and there is light reflection. Therefore, it is possible to eliminate the inconvenience of the user due to the direct exposure of the color color in a situation where it is not necessary. The convenience of the user of the color cast can be improved.

1 is a view illustrating a structure of a hidden retroreflective film according to an embodiment of the present invention.
FIG. 2 is a view showing an image of a retroreflective film viewed from the outside when light is not reflected. FIG.
FIG. 3 is a view showing an image of a retroreflective film viewed from the outside when light is reflected. FIG.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. In this specification, the terms "comprising ", or" comprising "and the like should not be construed as necessarily including the various elements or steps described in the specification, Or may be further comprised of additional components or steps.

The present invention relates to a hysterical printed object, preferably a hysteretic retroreflective film and a method of manufacturing the same. In the absence of light reflection, the original color of the printed pattern (image) is hidden, And when the light is reflected, the original color of the print pattern is seen as an outward appearance.

For example, even if the pattern printed on the hidden retroreflective film has color hue, the hue appears to be black and white from the outside before the light is reflected, but when the light is reflected, the original color hue appears to the outside. On the other hand, in the conventional retroreflective film, the color of the print pattern is exposed to the outside.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view showing the structure of a retroreflective film according to an embodiment of the present invention, FIG. 2 is a view showing an image of a retroreflective film seen from the outside when light is not reflected, FIG. And an image of the hidden retroreflective film seen from the outside when light is reflected.

1, a hysteretic print, such as a hysterical retroreflective writing, of the present embodiment includes a base film 100, a coating layer 102, a glass bead layer 104, a first print layer 106, A first printing layer 108, a second printing layer 110, a third printing layer 112 and an adhesive printing layer 114. Here, the adhesive printed layer 114 is a layer adhered to an adherend such as clothes and is a layer in which the base film 200 is exposed to the outside. That is, light is incident on the base film 200.

The base film 100 may be a base layer of a retroreflective film, for example, a PET film.

The coating layer 102 is a layer containing a primer for fixing a glass bead on the base film 200 and is formed by coating a coating liquid containing a primer on the base film 100 through a coating process .

The glass bead layer 104 is formed on the coating layer 102 and includes glass beads. Further, the glass bead layer 104 is formed by pressing glass beads on the coating layer 102, and as a result, it is fixed to the base film 200 by the primer of the coating layer 102. Here, glass beads are beads made of glass, giving a soft and sweet feeling and having various colors and shapes.

The first printed layer 106 can be formed by silk printing a transparent ink on the first printed layer 106, for example, as a layer formed for printing a clear pattern (image).

For example, if the pattern is printed with offset printing, the pattern may not be printed clearly on the glass bead layer 104 if the pattern is printed directly on the glass bead layer 104 without the first printed layer 106. [

Therefore, in order to obtain a clear pattern, the present invention forms a first print layer 106 on a glass bead layer 104 before printing a pattern, and then forms an offset ink or the like on the first print layer 106 Offset printing forms the pattern.

When such a pattern is formed, not only the pattern is printed clearly but also the fastness of the retroreflective film (meaning the degree of resistance and durability to various external conditions of the dye color) can be improved.

According to one embodiment, the first printed layer 106 may be formed by silk printing a transparent ink such as a urethane ink or a polyester material.

The upper printed layer 108 is formed on the first printed layer 106 as a layer on which a desired pattern is printed. In Fig. 1, an "A" shaped pattern was printed. That is, an image having an "A" shape is formed.

According to one embodiment, the upper printed layer 108 can print a desired pattern on the first printed layer 106 through high-resolution offset printing. Here, the pattern may have various shapes or colors.

The second printed layer 110 is formed on the upper printed layer 108 and may be formed on the printed layer 108 in the same shape as the pattern. For example, the second printed layer 110 may be formed through silk printing.

According to one embodiment, the second printed layer 110 may be formed by silk printing on the ink printed layer 108 using a metal complex salt dye as the main material.

The ink may contain a transparent ink (500 weight ratio) made of metallic complex dyes (50 weight ratio), cyclohexanone (300 weight ratio) and urethane ink or polyester material.

Such an ink may be formed by diluting the metal complex salt dye at a ratio of 50 weight parts to 300 parts by weight of cyclohexanone, dissolving the mixture in a hot water bath, completely cooling the mixture, and then adding a transparent ink made of urethane or polyester resin at a weight ratio of 500.

The metal complex salt dye may be a soluble azo dye in which a dye molecule and a metal ion such as chromium are combined in a complex salt form, and has already been converted to a metal complex salt in a dye production process, and may have the following structure.

The azo dye having a complexing group such as a hydroxy group -OH and a carboxyl group-COOH is bonded to a metal such as copper, cobalt, chromium, nickel, iron, or the like at each ortho position of six benzene rings linked with an azo group -NN- It is a dye that forms a complex salt. It can be classified into 1: 1 type and 1: 2 type depending on the combination ratio of metal and azo dye.

[An example of the structure of the metal complex salt dye]

In the actual experiment, dyechem black 820 (Color Index No .: CI Solvent Black 27, Chemical Type: Azo metal complex, Formula: C17H13N3O4Cr1 / 2) was used as the metal complex salt dye. However, the metal complex salt dye may be composed of other components than the azo dye.

The above-mentioned cyclohexanone is used as a dye solvent and has excellent decomposition ability of resin and can be used as a diluting agent in ink production.

The transparent ink is a material having excellent stretchability, for example, urethane. Use of such a transparent ink ensures the elasticity, so that the fastness of the hidden retroreflective film can be improved.

Since the second printed layer 110 is printed with ink having a good transparency when light is transmitted and light having a good hiding power when the light is not transmitted, the color of the pattern is reflected on the retroreflective film The second printed layer 110 can be concealed.

As a result, when the light is not reflected, the original color of the pattern is not exposed to the outside. For example, the color of the pattern may be exposed to the outside in a monochrome color unlike the original color as shown in FIG. That is, an image of black and white is displayed on the outside.

On the other hand, when light is reflected, the original color of the pattern may be exposed to the outside as shown in FIG. That is, an image having an original color, for example, a color, is displayed on the outside.

Although FIG. 1 shows an image of an A shape, FIGS. 2 and 3 illustrate an image of a fish shape. Of course, the image of FIG. 1 and the image of FIG. 2 should be the same, but different images are used in the drawings for convenience of explanation.

The third printing layer 112 is formed on the second printing layer 110 with the same pattern as the pattern. The third printing layer 112 is formed by silk printing on the second printing layer 110 with silver ink containing silver pigment as a main component .

According to one embodiment, the silver ink may be prepared by diluting a silver pigment to a urethane or polyester transparent ink at a ratio of 5 to 15%. That is, the silver ink may contain a transparent ink made of urethane or polyester and a silver pigment.

The main reason for using such an ink having silver pigment as its main ingredient is that the retroreflective effect of the retroreflective film of Hidden is the best when it is based on silver.

The adhesive print layer 114 is formed on the third printed layer 112 in the same shape as the pattern and adheres to an adherend such as a fabric.

According to one embodiment, the adhesive print layer 114 is formed by printing with an adhesive made of a hot-melt component.

The adhesive may be a urettase hot melt, a polyester hot melt, a polyamide hot melt, or the like. Here, hotmelt which exhibits the best fastness of transfer depending on the type of adherend such as fabric can be selected and used.

Hereinafter, a manufacturing process of the retroreflective film will be described.

First, a coating liquid containing a primer is coated on a base film 100 to form a coating layer 102.

Then, a glass bead is pressed onto the coating layer 102 to form a glass bead layer 104. [

Subsequently, the urethane ink or the transparent ink made of a polyester material is silk printed on the glass bead layer 104 to form the first printed layer 106.

Subsequently, a specific ink is offset-printed on the first print layer 106 to form an image printed layer 108 having a pattern formed thereon.

Subsequently, the second printed layer 110 is formed on the upper printed layer 108 by silk printing ink containing the metal complex salt dye as the main ingredient.

Next, the third printed layer 112 is formed on the second printed layer 110 by silk printing with silver ink containing silver pigment as the main ingredient.

Thus, the adhesive printed layer 114 is formed by printing an adhesive containing hot-melt on the third printed layer 112.

In summary, the present invention provides a hysteresis print substrate, particularly a hysteresis retroreflective film and a method of manufacturing the same, which are capable of forming a second print layer 110 formed on an upper printed layer 108 by printing ink containing a metal complex salt dye as a main ingredient. So that the original color of the pattern is exposed to the outside only when the reflection of light occurs.

Of course, as long as the hue of the pattern of the image print layer 108 is implemented with a hidden function, the components of the second print layer 110 can be variously modified.

Although the second printed layer 110 is formed on the upper printed layer 108 in FIG. 1, the upper printed layer 108 may be formed on the second printed layer 110.

It will be apparent to those skilled in the art that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as defined by the appended claims. Should be regarded as belonging to the following claims.

100: base film 102: coating layer
104: glass bead layer 106: first printing layer
108: phase print layer 110: second print layer
112: third printing layer 114: adhesive printing layer

Claims (17)

In the substrate,
A base film;
A coating layer formed on the base film;
A glass bead layer formed on the coating layer;
A first printing layer formed on the glass bead layer;
An image printed layer on which a pattern is formed;
A second printing layer formed on the image printing layer;
A third printing layer formed on the second printing layer; And
And an adhesive printing layer formed on the third printing layer,
When the light is not reflected by the body, the color different from the original color of the pattern is exposed to the outside, and when the light is reflected by the body, the original color of the pattern is exposed to the outside, And the second print layer have the same shape, the upper print layer is formed on the first print layer, and the upper print layer, the second print layer, the third print layer, and the adhesive print layer And the shape is the same. The method according to claim 1,
Wherein the substrate is a retroreflective film. The printed matter according to claim 1, wherein the ink of the second printing layer comprises a metal complex dye. The printed matter according to claim 3, wherein the ink of the second printing layer contains a transparent ink made of the metal complex salt dye, the cyclohexanone, and the urethane ink or the polyester material. 5. The printed matter according to claim 4, wherein the metal complex dye, the cyclohexanone, and the transparent ink each have a weight ratio of 50, 300, and 500, respectively. delete The substrate according to claim 1, wherein the coating layer is formed by coating a coating liquid containing a primer on the base film, and the glass bead layer is formed by pressing glass beads onto the coating layer. The printed matter according to claim 1, wherein the first print layer is formed by printing a transparent ink made of a urethane ink or a polyester material. The printed matter according to claim 1, wherein the third printing layer is formed by printing a silver ink containing silver pigment on the second printing layer. The printed matter according to claim 1, wherein the adhesive print layer is formed by printing an adhesive containing hot-melt as a component, and is a portion adhered to the adherend. delete delete delete Coating a base film with a coating solution containing a primer to form a coating layer;
Pressing the glass beads on the coating layer to form a glass bead layer;
Printing a urethane ink or a transparent ink made of a polyester material on the glass bead layer to form a first print layer;
Forming a patterned overprint layer;
Printing an ink containing a metal complex salt dye on the upper printed layer to form a second printed layer;
Printing a silver ink containing silver pigment on the second printing layer to form a third printing layer; And
And printing an adhesive comprising hot-melt on the third printing layer to form an adhesive printing layer,
Wherein the shape of the pattern and the shape of the second printing layer are the same, and the upper printing layer is formed by offset printing of a specific ink on the first printing layer. 15. The method of claim 14, wherein the ink of the second printing layer contains a transparent ink made of the metal complex dye, the cyclohexanone, and the urethane ink or the polyester material. 16. The method of claim 15, wherein the metal complex dye, the cyclohexanone, and the transparent ink each have a weight ratio of 50, 300, and 500, respectively.











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