Printed material

Abstract

To provide a printed material that enables switching of an image perceived according to the relationship with a light source, capable of forming high-resolution images, and easy to produce.SOLUTION: A printed material 1 comprises a bright layer 13 that contains a bright material and does not display an image when uniformly observed; a first printing layer 14 that is formed of a material having light transmittance, is laminated with the bright layer 13, and forms a first image 140; and a second printing layer 12 that is formed of a material not containing the bright material, is laminated on the observation side relative to the first printing layer 14, and forms a second image 120.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] This disclosure relates to printed matter. [Background technology]

[0002] There are known techniques for switching the image that is visible depending on the relationship with the light source. For example, the technique described in Patent Document 1 forms an image using a printed layer containing a glittering material, and switches the visible image by utilizing the fact that the reflection intensity of the glittering material changes depending on the relationship with the light source. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-751 Summary of the Invention [Problem to be solved by the invention]

[0004] However, glittering materials (such as inks) contain glittering particles (such as pigments), and because the particle size of these glittering particles is relatively large, they are prone to clogging the printing plate. Furthermore, glittering materials are prone to printing defects, such as ink residue on the blanket, causing smearing. In particular, when attempting to form high-resolution images with glittering materials, the printing plate shape also becomes highly precise, making printing defects such as clogging and ink residue on the blanket even more likely to occur. Therefore, there is a problem in that printed materials using glittering materials are difficult to produce. Therefore, printing layers using conventional glittering materials are not suitable for forming high-resolution images, and it has been practical to form images with simple designs.

[0005] An object of the present disclosure is to provide a printed matter that can switch the image that is visible depending on the relationship with the light source, can form a high-definition image, and is easy to produce. [Means for solving the problem]

[0006] The present disclosure solves the above-mentioned problems by the following means: For ease of understanding, the following description will be given with reference numerals corresponding to the embodiments of the present disclosure, but the present disclosure is not limited to these.

[0007] The first disclosure is a printed matter (1, 1B, 1C) comprising a photoluminescent layer (13, 13B, 13C) that contains a photoluminescent material and is observed uniformly without any image being observed, a first printed layer (14, 14B, 14C) that is formed from a light-transmitting material and is laminated with the photoluminescent layer (13, 13B, 13C) to form a first image (140), and a second printed layer (12, 12C) that is formed from a material that does not contain the photoluminescent material and is laminated on the observation side of the first printed layer (14, 14B, 14C) to form a second image (120).

[0008] The second disclosure is a printed matter (1) as described in claim 1, characterized in that it comprises a base material layer (11), the glossy layer (13) is laminated on the observation side of the base material layer (11), and the first printed layer (14) and the second printed layer (12) are laminated on the observation side of the glossy layer (13).

[0009] The third disclosure is a printed matter (1B) characterized in that, in the printed matter (1B) described in claim 1, the glossy layer (13B) is arranged between the first printed layer (14B) and the second printed layer (12).

[0010] The fourth disclosure is a printed matter (1C) described in claim 1, characterized in that the glossy layer (13C) is positioned on the observation side of the first printed layer (14C) and the second printed layer (12C).

[0011] The fifth disclosure is a printed matter (1, 1B, 1C) characterized in that, in the printed matter (1B) described in claim 1, a protective layer (15) is arranged on the observation side of the glossy layer (13B), the first printed layer (14B), and the second printed layer (12).

[0012] The sixth disclosure is a printed matter (1, 1B, 1C) described in claim 1, characterized in that the more easily visible image between the first image (140) and the second image (129) is switched depending on the change in the relationship with the light source.

[0013] The seventh disclosure is the printed matter (1, 1B, 1C) described in claim 1, characterized in that the film thickness of the second printed layer (12, 12C) is 4 μm or less. [Effects of the Invention]

[0014] According to the present disclosure, it is possible to provide a printed matter that is easy to manufacture, capable of switching the image that is visible depending on the relationship with the light source, and capable of forming a high-definition image. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a diagram showing a layer structure of a printed matter 1 according to a first embodiment. [Figure 2] FIG. 2 is a diagram illustrating how the second printed layer 12, the glossy layer 13, and the first printed layer 14 appear. [Figure 3] FIG. 2 is a diagram illustrating a visual image 201 obtained when the printed matter 1 is observed under diffuse reflected light. [Figure 4] FIG. 2 is a diagram illustrating a visual image 202 obtained when the printed matter 1 is observed under specular reflection light. [Figure 5] FIG. 10 is a diagram showing the layer structure of a printed matter 1B according to a second embodiment. [Figure 6] FIG. 10 is a diagram showing the layer structure of a printed matter 1C according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings.

[0017] (First embodiment) FIG. 1 is a diagram showing the layer structure of a printed matter 1 of the first embodiment. FIG. 2 is a diagram illustrating the appearance of the second printed layer 12, the glossy layer 13, and the first printed layer 14. Note that the following figures, including FIG. 1, are schematic diagrams, and the size and shape of each part are exaggerated or omitted as appropriate for ease of understanding. In the following description, specific numerical values, shapes, materials, etc. are used for explanation, but these can be changed as appropriate. In addition, in this disclosure, "transparent" refers to something that transmits at least the wavelength of light to be used. For example, even if a material does not transmit visible light, if it transmits infrared light, it will be treated as transparent when used in infrared applications.

[0018] In the printed matter 1 of the first embodiment, a base layer 11, a glossy layer 13, a first printed layer 14, and a second printed layer 12 are laminated in this order from the back side to the observation side (front side). The observation side (front side) refers to the side from which the image displayed by the printed matter 1 is observed, and is the side (upper side) on which the second printed layer 12 is provided in FIG. 1. The back side is the side opposite the observation side (front side). In this specification and claims, unless otherwise specified, the term "laminated" includes not only a configuration in which two layers are directly laminated, but also a configuration in which two layers are indirectly laminated with a layer other than the two layers sandwiched between them.

[0019] The base layer 11 is a layer that forms the base of the printed matter 1 and may be formed from, for example, white paper. Note that the base layer 11 is not limited to white paper, and may be any material that has a flat surface that can support other layers, which will be described later. For example, the base layer 11 may be other materials such as fine paper, coated paper, art paper, tack paper, OCR paper, label paper, plastic card, film, etc.

[0020] The second printing layer 12 may be formed of a material that does not contain a glittering material. The second printing layer 12 is laminated on the observation side of the glittering layer 13 and the first printing layer 14, which will be described later, to form the second image 120. A material that does not contain a glittering material means that it does not contain a glittering material equivalent to the glittering material contained in the glittering layer 13, which will be described later. Therefore, the second printing layer 12 does not exclude the inclusion of a glittering material with a particle size that is sufficiently smaller than the glittering material contained in the glittering layer 13. More specifically, the second printing layer 12 may contain a glittering material to an extent that it is unlikely to cause printing defects such as clogging in the printing plate shape, in other words, a particle size similar to that of other pigments such as black.

[0021] To more clearly differentiate the appearance from the glossy layer 13 described below, it is desirable that the second printing layer 12 not contain any glossy material with a small particle size. The second printing layer 12 of this embodiment may be a black ink containing a black pigment but no glossy material. For example, general process ink can be suitably used for the second printing layer 12. The second image 120 can be formed using an ink that is less likely to cause printing defects such as clogging in the printing plate. Therefore, the second image 120 can be an extremely high-resolution image. Therefore, even a portrait, such as that shown in FIG. 2, can be formed as a high-quality image that is sufficiently pleasing to be appreciated. The second printing layer 12 can be formed by various printing methods. In offset printing, the fineness of the print can be expressed by the screen ruling, which indicates the number of lines that can be drawn per inch. Here, high definition means, for example, a screen ruling of 150 lines (resolution of 300 dpi) or more.

[0022] To facilitate understanding of the printing fineness (how detailed the image) that can be produced by the second printing layer 12, the screen ruling and resolution (dpi) for typical printed matter will be categorized and explained below. For rough printing of newspapers (such as on recycled paper), a screen ruling of 60 to 80 lines (resolution of 120 dpi to 160 dpi) can be used. For fine printing of books and magazines, which are primarily text-based, a screen ruling of 100 to 150 lines (resolution of 200 dpi to 300 dpi) can be used. For high-resolution color printing of catalogs, calendars, etc. (on coated paper, art paper, etc.), a screen ruling of 150 to 200 lines (resolution of 300 dpi to 400 dpi) can be used. Furthermore, for high-quality printed matter, such as photographs and paintings, a screen ruling of 300 lines (resolution of 600 dpi) or higher may be used.

[0023] Furthermore, although the second printed layer 12 in this embodiment is a black-and-white image formed using black ink, it may also be a color image formed by combining multiple colors of ink. In this embodiment, the second image 120 is formed in a single color using black ink, and therefore the second printed layer 12 is illustrated as being partially laminated on the base material layer 11. However, the second printed layer 12 may be a single-color, multi-tone second image 120. Furthermore, when the second image 120 is formed by combining multiple colors of ink, the second printed layer 12 may be laminated over the entire surface of the base material layer 11. Furthermore, in FIG. 2, the second printed layer 12 is illustrated as being partially provided, as if voids were present. However, the representation in FIG. 2 is a schematic representation for ease of understanding, and in reality, no such voids exist (the same applies to other figures). In this embodiment, as shown in FIG. 2, the second image 120 formed by the second printed layer 12 is a high-resolution photographic image. However, it goes without saying that the second image 120 formed by the second print layer 12 may be an image such as a simpler graphic.

[0024] Not only the second printed layer 12, but also the glossy layer 13 and the first printed layer 14 described below may be formed by offset printing. Offset printing generally refers to wet offset printing. However, the method for forming the second printed layer 12, glossy layer 13, and first printed layer 14 is not limited to wet offset printing, and may be, for example, gravure printing, dry offset printing, letterpress printing, waterless lithographic printing, flexographic printing, screen printing, intaglio printing, inkjet printing, laser printing, etc. Also, a combination of these methods may be used, such as inkjet printing for the first printed layer, laser printing for the glossy layer, and offset printing for the second printed layer. The above-mentioned line count and resolution can be used as a measure of fineness to evaluate the printing results, regardless of the printing method used. Furthermore, regardless of the printing method used to form the second printed layer 12, high-resolution printing with a screen line count of 150 lines (resolution of 300 dpi) or more can be achieved.

[0025] Furthermore, since the second printed layer 12 is provided on the observation side of the first printed layer 14 described below, it is preferable that the second printed layer 12 has a transparency that allows the first printed layer 14 to be visible. Specifically, the film thickness of the second printed layer is preferably 4 μm or less, and more preferably 2 μm or less. When the second printed layer has the above light transmittance, the first printed layer 14 of the printed matter 1 can be seen through the second printed layer 12.

[0026] The glittering layer 13 may be uniformly formed and contain a glittering material, or may not have an image formed thereon. The glittering layer 13 may be, for example, a silver ink containing aluminum powder, copper powder, zinc powder, tin powder, or iron phosphide. The glittering layer 13 may also be an ink obtained by mixing a silver ink with a chromatic ink containing a colored dye, such as a pigment or dye. The glittering layer 13 may also be an ink containing only a glittering material exhibiting a bluish gold or reddish gold color. Furthermore, the glittering layer 13 may also be an ink containing a glittering material exhibiting a bluish gold or reddish gold color, mixed with a chromatic ink containing the above-mentioned colored dye. The glittering layer 13 may also be an ink containing a functional pigment whose color changes when light is reflected, such as pearl ink, liquid crystal ink, OVI (Optical Variable Ink), or CSI (Color Shifting Ink). Pearl ink is an ink containing a pearl pigment that has a pearlescent luster compared to ordinary pigments and has its safety, gloss, and luxurious feel. Liquid crystal ink is an ink containing liquid crystals that have the property of changing color with temperature. Inks containing the above-mentioned glittering materials have the characteristic of changing their appearance depending on the light source. For example, silver ink appears dark gray under diffuse reflected light, which does not strongly reflect light, but appears lighter gray or white under specular reflected light, which strongly reflects light.

[0027] Furthermore, the glossy layer 13 may be formed uniformly as described above, or may not have an image formed thereon. Here, "formed uniformly and not having an image formed thereon" refers to a form in which the glossy layer 13 is observed to be uniform under normal visual conditions, and is provided in a manner in which no pattern (picture), lettering, or the like is recognizable. In this embodiment, the glossy layer 13 may be formed by solid printing of silver ink. Furthermore, the glossy layer 13 is not limited to solid printing, and may be formed, for example, in the form of fine stripes (lines) that are not visible to the naked eye, or in the form of fine halftone dots that are not visible to the naked eye.

[0028] The glossy layer 13 can be formed using, for example, the silver offset ink (UV No. 3 Silver manufactured by T&K TOKA) used in this embodiment. For ease of understanding, FIG. 2 shows a glossy layer observation example 130, which shows the appearance of the glossy layer 13 alone. This glossy layer observation example 130 illustrates that the glossy layer 13 is uniformly observed, and is shown as a reference for the appearance in FIG. 4 and other figures. Therefore, the glossy layer observation example 130 does not show that "dots" are actually observed, as in the glossy layer observation example 130 shown in FIG. 2.

[0029] The first printed layer 14 is formed of a light-transmitting material and may be laminated with the glossy layer 13 to form a first image 140 that is different from the second image. Here, "light-transmitting" means that the first printed layer 14 may be transparent or translucent, and has light transmittance to the extent that the first image 140 is almost invisible when observed with diffused light. The first printed layer 14 may be formed as a binary image by partially forming the first printed layer 14 on the glossy layer 13, or the first printed layer 14 may be formed as a monochromatic gradation image by providing multiple levels of shading in different locations.

[0030] Because the first printed layer 14 is transparent or translucent, it is difficult to visually recognize under diffuse reflected light. However, under specular reflected light, it reflects light different from that of the glossy layer 13 toward the observation point. Therefore, the first printed layer 14 makes the first image 140 formed by the first printed layer 14 visible against the background of the uniformly strong reflected light from the glossy layer 13. Examples of light-transmitting materials that can be used for the first printed layer 14 include matte OP varnish, gloss OP varnish, clear varnish, ink varnish, clear ink, and medium ink. In this embodiment, since another layer (the second printed layer 12) is located closer to the observation side than the first printed layer 14, using a glossy ink for the first printed layer 14 makes the difference in glossiness more easily discernible, making the first image 140 formed by the first printed layer 14 more visible.

[0031] As shown in Fig. 2, the first printed layer 14 of this embodiment forms a first image 140 as a binary image by partially forming the first printed layer 14 on the glossy layer 13. In the example of Fig. 2, the first image 140 displays the characters "ABCDEFG." However, because the first printed layer 14 is optically transparent, the first image 140 is not visible or is difficult to see with the naked eye under diffuse reflected light.

[0032] Next, the appearance of the printed matter 1 of the first embodiment will be described. The visually perceived image (hereinafter referred to as the visual image) of the printed matter 1 of this embodiment varies depending on the relationship between the light source and the printed matter when observed. FIG. 3 is a diagram illustrating a visual image 201 when the printed matter 1 is observed under diffuse reflected light. Under diffuse reflected light, the first image 140 is difficult to see because the first printed layer 14 is optically transparent. Therefore, as shown in FIG. 1, the visual image 201 under diffuse reflected light is observed as the second image 120 along with the uniform glossy layer 13 (glossy layer observation example 130). Note that FIG. 3 shows an observer O observing the printed matter 1 from the front (approximately normal to the surface of the printed matter 1). However, under diffuse reflected light, the visual image 201 will appear similar to the visual image 201 shown in FIG. 3 even when observed from another direction unless the conditions are equivalent to those under specular reflected light, as described below.

[0033] FIG. 4 illustrates a visual image 202 when the printed matter 1 is observed under specular reflection light. The observation state shown in FIG. 4 is a positional relationship in which light from the light source LS is specularly reflected from the surface of the printed matter 1 and the reflected light reaches the observer O. When the printed matter 1 is observed under specular reflection light as shown in FIG. 4, the glossy layer 13 strongly reflects light. Therefore, when the glossy layer 13 of this embodiment is a silver ink, the visual image 202 appears paler gray or white. Furthermore, because the reflected light from the glossy layer 13 is strong, the second image 120 located further toward the observation side is invisible or barely visible. Furthermore, when the printed matter 1 is observed under specular reflection light as shown in FIG. 4, the first printed layer 14 reflects light different from that of the glossy layer 13 toward the observation point. As a result, the first image 140 is visible against the background of uniformly strong reflected light from the glossy layer 13 in the visual image 202. Therefore, when the printed matter 1 is observed under specular reflection light as shown in Figure 4, the second image 120 is not visible or is barely visible, while the first image 140 is visible against the background of the uniformly strong reflected light from the shiny layer 13. Therefore, when the printed matter 1 is observed under specular reflection light, the visible image 202 is observed as shown in Figure 4. Here, the second printed layer 12 is laminated on the observation side of the first printed layer 14. However, because the second printed layer 12 is optically transparent, the first image 140 formed by the first printed layer 14 can be observed through the second printed layer 12.

[0034] As described above, according to this embodiment, the printed matter 1 is configured to switch between the first image 140 and the second image 120, whichever is more easily visible, depending on the change in the relationship with the light source, while the glossy layer 13 is uniformly formed and does not form an image. This prevents the printed matter 1 from causing printing defects such as clogging of the printing plate due to the glossy material. Furthermore, by providing a second printing layer that forms the second image, the second printing layer can form a high-resolution second image. Therefore, the present disclosure can provide a printed matter 1 that can switch the visible image depending on the relationship with the light source, can form a high-resolution image, and is easy to manufacture.

[0035] (Second embodiment) FIG. 5 is a diagram showing the layer structure of printed matter 1B of the second embodiment. Printed matter 1B of the second embodiment differs from printed matter 1 of the first embodiment in that the positional relationship between glossy layer 13B and first printed layer 14B is reversed from the positional relationship between glossy layer 13 and first printed layer 14 of the first embodiment. Printed matter 1B of the second embodiment also differs from printed matter 1 of the first embodiment in that it includes a protective layer 15. The rest of the configuration of printed matter 1B of the second embodiment is the same as that of printed matter 1 of the first embodiment. Therefore, parts that perform the same functions as those of the first embodiment described above are assigned the same reference numerals, and duplicate explanations will be omitted as appropriate.

[0036] The printed matter 1B of the second embodiment has a base layer 11, a first printed layer 14B, a glossy layer 13B, a second printed layer 12, and a protective layer 15 laminated in this order from the back side to the observation side (front side).

[0037] The first printed layer 14B has the same configuration as the first printed layer 14 of the first embodiment, except that it is disposed at a position sandwiched between the base material layer 11 and the glossy layer 13B. The first printed layer 14B forms a first image 140 (see FIG. 2) in the same manner as the first embodiment.

[0038] The glossy layer 13B is disposed closer to the observation side than the first printed layer 14B. The glossy layer 13B of the second embodiment is formed to a thickness that allows the first image 140 formed by the first printed layer 14B, which is provided on the back side of the glossy layer 13B, to be observed through the first image 140. That is, even when the glossy layer 13B is solid printed as described above, the glossy layer 13B is formed to a thickness that allows the first image 140 formed by the first printed layer 14B, which is provided on the back side of the glossy layer 13B, to be observed through the first image 140. The glossy layer 13B contains a glossy pigment (glossy material), which is dispersed in a binder. Since binders are usually optically transparent, the glossy layer 13B can be formed to have optical transparency. For example, the silver offset ink (UV No. 3 Silver manufactured by T&K TOKA) used in this embodiment, when its layer thickness is 4 μm or less, allows for observation of the first image 140 formed by the first printed layer 14B, which is located on the backside of the glossy layer 13B. The glossy layer 13B in this embodiment is formed using a silver offset ink (UV No. 3 Silver manufactured by T&K TOKA) with a layer thickness of approximately 2 μm. Therefore, the glossy layer 13B allows for observation of the first image 140 formed by the first printed layer 14B, which is located on the backside of the glossy layer 13B. In this embodiment, since the glossy layer 13B is solidly printed as described above, it is desirable to adjust its transparency by its thickness. However, for example, if the glossy layer 13B is formed in a fine stripe pattern (line pattern) or a fine halftone dot pattern that is not visible to the naked eye, the transparency of the glossy layer 13B can be adjusted by adjusting the spacing and size of the stripes or halftone dots.

[0039] As described above, in printed matter 1B, the positional relationship between glossy layer 13B and first printed layer 14B is reversed from the positional relationship between glossy layer 13 and first printed layer 14 in the first embodiment. However, even with the arrangement of the layers in printed matter 1B of the second embodiment, as in the first embodiment, the more easily visible image between first image 140 and second image 120 switches depending on the change in the relationship with the light source. Therefore, printed matter 1B can achieve the same effect as printed matter 1 of the first embodiment.

[0040] Furthermore, in this embodiment, the printed matter 1B is provided with a protective layer 15. The protective layer 15 is laminated on the observation side of the glossy layer 13B and is a transparent layer with high light transmittance that protects the surface of the printed matter 1B. Providing the protective layer 15 improves the durability of the printed matter 1B. The protective layer 15 can also be provided in the first embodiment and the third embodiment described below. When the first printed layer 14 is present on the outermost surface of the observation side, providing the protective layer 15 thereon presents a problem in that the first printed layer 14 and the protective layer 15 blend together due to their transparency, preventing the image of the first printed layer 14 from changing. By providing the second printed layer 12 on the observation side of the first printed layer 14, even if the protective layer 15 is provided thereon, the first printed layer 14 and the protective layer 14 do not come into contact with each other, resulting in the effect of the printed matter 1B having a changing image.

[0041] (Third embodiment) 6 is a diagram showing the layer structure of a printed matter 1C of the third embodiment. The printed matter 1C of the third embodiment is similar to the printed matter 1 of the first embodiment, except that the glossy layer 13C is positioned closer to the observation side than the first printed layer 14C and the second printed layer 12C. Therefore, parts that perform the same functions as in the first embodiment described above are given the same reference numerals, and redundant explanations will be omitted where appropriate.

[0042] The printed matter 1C of the third embodiment has a base layer 11, a first printed layer 14C, a second printed layer 12C, and a glossy layer 13C laminated in this order from the back surface side to the observation side (front surface side).

[0043] The first printed layer 14C has the same configuration as the first printed layer 14 of the first embodiment, except that it is positioned between the base material layer 11 and the second printed layer 12C, i.e., laminated directly on the base material layer 11.

[0044] The second printed layer 12C has the same configuration as the second printed layer 12 of the first embodiment, except that it is disposed on the rear surface side of the shiny layer 13C.

[0045] The glossy layer 13C has the same configuration as the glossy layer 13 of the first embodiment, except that it is arranged closer to the observation side than the first printed layer 14C and the second printed layer 12C. Furthermore, the glossy layer 13C has other layers that form an image, namely the first printed layer 14C and the second printed layer 12C, that are arranged closer to the surface than the glossy layer 13C. Therefore, the glossy layer 13C may be optically transparent, similar to the glossy layer 13B of the second embodiment.

[0046] As described above, in printed matter 1C, glossy layer 13C is disposed closer to the observation side than first printed layer 14C and second printed layer 12C. However, even with the arrangement of the layers in printed matter 1C of the third embodiment, as in the first embodiment, the more easily visible image, either first image 140 or second image 120, switches depending on the change in the relationship with the light source. Therefore, printed matter 1C can achieve the same effect as printed matter 1 of the first embodiment.

[0047] The present disclosure is not limited to the embodiments described above, and various modifications and changes are possible, and these are also within the scope of the present disclosure. The present disclosure is not limited to the embodiments described above. [Explanation of symbols]

[0048] 1 Printed matter 1B Printed matter 1C Printed matter 11 Base material layer 12 2nd printing layer 12C 2nd printing layer 13 Photoluminescent layer 13B Bright layer 13C bright layer 14 1st printing layer 14B 1st printing layer 14C 1st printing layer 15 Protective layer 120 2nd image 130 Example of observation of luminous layer 140 First Image 201 Visual Image 202 Visual Image

Claims

1. a bright layer that contains a bright material and is uniformly observed so that no image is observed; a first print layer formed of a light-transmitting material and laminated with the glossy layer to form a first image; a second print layer formed of a material not containing the glittering material and laminated on the observation side of the first print layer to form a second image; A printed matter comprising:

2. The printed matter according to claim 1, A substrate layer is provided, The glossy layer is laminated on the observation side of the base layer, the first printed layer and the second printed layer are laminated on the observation side of the glossy layer; A printed matter characterized by:

3. The printed matter according to claim 1, the glossy layer is disposed between the first printed layer and the second printed layer; A printed matter characterized by:

4. The printed matter according to claim 1, the glossy layer is disposed on the observation side of the first printed layer and the second printed layer; A printed matter characterized by:

5. The printed matter according to claim 1, a protective layer is disposed on the observation side of the glossy layer, the first printed layer, and the second printed layer; A printed matter characterized by:

6. The printed matter according to claim 1, switching between the first image and the second image to an image that is more easily visible in accordance with a change in the relationship with a light source; A printed matter characterized by:

7. The printed matter according to claim 1, the thickness of the second printed layer is 4 μm or less; A printed matter characterized by:

Images