JP2020006643A - Printed material and printing method - Google Patents

Abstract

To provide a printed material expressing at favorable production efficiency, a glossy beautiful metallic color like that actually looking through eyes, and also capable of improving the vivid sensory perception or punch of a printed image, and to provide a printing method capable of preparing such printed materials.SOLUTION: A printed material 10 comprises: a printing base material 11; an ink layer 12 for convex shape formation provided on the printing base material 11; a metallic sheet 13 provided on the printing base material 11 on which the convex shape is formed to form a metallic surface; and an ink layer 14 for image formation provided above the printing base material 11 having the metallic surface to form an image in such a state as making at least a part of the metallic surface expose outside.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a printed matter and a printing method, and more particularly to a printed matter and a printing method in which a metal color is expressed on at least a part of a surface.

  When creating printed matter having images such as paintings and photographs, including objects made of metal and objects decorated with metal, various printing base materials such as printing sheets and metal plates are printed with an inkjet printer or the like. It is known that a metal color is expressed by applying ink containing particles (for example, see Patent Documents 1 and 2).

JP 2018-334500A JP, 2018-039206, A

However, even if the ink containing the metal particles as described above is applied, it is inevitable that a glossy and beautiful metal color that can be actually seen cannot be expressed, and therefore, the printed image of the printed matter is actually It lacked the sense of presence and power that differed from the visual atmosphere.
By the way, it is also possible to process the metal foil into the shape of the part that expresses the metal color and paste it on the relevant part of the printed matter later, but in that case, it is difficult to process the metal foil and paste it at a predetermined position As a result, the number of high-level processes increases, which causes problems in production efficiency such as manufacturing accuracy and cost.

  In view of this situation, a main problem of the present invention is to produce a beautiful metallic color that is actually glossy with good production efficiency, and to improve the realism and power of a printed image, and the like, and Another object of the present invention is to provide a printing method capable of creating such a printed material.

A first characteristic configuration of the present invention includes a printing substrate,
A convex shape forming ink layer provided on the printing base material to form a convex shape,
A metallic sheet that is provided on the printing substrate on which the convex shape is formed to form a metallic surface,
An image forming ink layer which is provided on the printing substrate on which the metallic surface is formed, and forms an image in a state where at least a part of the metallic surface is exposed to the outside. It is in.

According to this configuration, since the metallic surface is formed on the metallic sheet, and the image forming ink layer is provided on the metallic sheet so that at least a part of the metallic surface is exposed to the outside, the image is formed. The metallic surface exposed to the outside makes it possible to express a glossy and beautiful metallic color that can be actually seen with good production efficiency. Therefore, it is possible to improve the sense of presence, power, and the like of the printed image.
In addition, since the convex shape is formed by providing the convex shape forming ink layer between the printing base material and the metallic sheet, unevenness can also be expressed on the surface of the printed matter in which a beautiful glossy metal color is expressed. This makes it possible to further improve the sense of presence, power, and the like of the printed image.

  A second characteristic configuration of the present invention resides in that the convex shape is provided in a metallic portion that exposes the metallic surface to the outside.

  According to this configuration, the metallic portion in the print image can be raised in the print image by a convex shape, so that the metallic portion expressed in a glossy and beautiful metallic color as actually seen in the print image is included in the print image. This makes it possible to further enhance the sense of realism and power of the printed image.

A third feature configuration of the present invention is a printing method for creating a printed matter according to the first or second feature configuration,
A first step of printing the convex shape forming ink layer on the printing base material to form the convex shape;
A second step of pasting the metallic sheet on the printing base material on which the convex shape is formed to form a metallic surface,
A third step of forming an image by printing an image forming ink layer in a state where at least a portion of the metallic surface is exposed to the outside on the printing base material on which the metallic surface is formed. It is in that point.

  According to this configuration, the convex shape can be easily formed by printing the convex shape forming ink layer on the printing substrate in the first step. A metallic sheet can be stuck thereon in the second step to easily form a metallic surface. Then, by printing the image forming ink layer in a state where at least a part of the metallic surface is exposed to the outside on the printing base material having the metallic surface in the third step, the actual visible It is possible to easily create a printed matter having a high sense of realism, powerfulness, and the like in which a beautiful glossy metallic color and unevenness are expressed.

Image of printed matter (front view) Sectional view schematically showing the steps of the printing method

An embodiment of a printed matter and a printing method according to the present invention will be described with reference to the drawings.
As shown in FIG. 2 (c), the printed material 10 has a printing base material 11, a convex shape forming ink layer 12 provided on the printing base material 11 to form a convex shape, and a convex shape. A metallic sheet 13 provided on the printing substrate 11 to form a metallic surface, and a metallic sheet 13 provided on the printing substrate 11 on which the metallic surface is formed to expose at least a part of the metallic surface to the outside. And an image forming ink layer 14 for forming an image in a state.

  As shown in FIG. 1, this printed matter 10 has a metallic portion 10A (a dark gray portion in FIG. 1) that mainly exposes a metallic surface to the outside, and a non-metallic portion 10B that mainly exposes a metallic surface to the outside. (A white portion in FIG. 1) is provided to express a beautiful metallic color (gold in this example) that is actually glossy as seen by eyes.

  Returning to FIG. 2C, the printing base material 11 can be made of various materials capable of forming an ink layer on the upper surface (front surface). In the present embodiment, the printing substrate 11 is configured to be nonflammable, and is configured as, for example, a nonflammable printing sheet in which a substrate layer made of glass cloth is covered with a resin layer. The resin layer in this case, for example, by mixing a particulate inorganic flame retardant having light diffusing property into the base resin instead of a white pigment or a light diffusing agent, as a flame-retardant light diffusing layer Can be configured. In addition, as the noncombustible printing base material 11, a thin metal plate made of an aluminum alloy or the like can be preferably used.

  The convex shape forming ink layer 12 is an ink layer printed by a commercially available printing machine such as an ink jet printer, and has a convex shape on the printing base material 11 at a layer thickness t12 (see FIG. 2A). To form In the present embodiment, the convex-forming ink layer 12 is formed on a part of the surface of the printing substrate 11, and the portion having the convex-forming ink layer 12 on the surface of the printing substrate 11 and the convex-forming ink layer 12 are formed. A convex shape is formed on the printing base material 11 by using a difference in height from a portion having no ink layer 12.

  Since the metallic sheet 13 is stuck on the convex shape forming ink layer 12, it is not exposed to the outside. For this reason, as the ink for forming the ink layer 12 for forming a convex shape, it is preferable to use an ink having a quick drying property which can quickly proceed to the next step, an ink having a high viscosity capable of efficiently forming a convex shape, or the like. it can.

  The metallic sheet 13 is a sheet having a metallic surface, and forms a metallic surface on the printing substrate 11 on its own surface. In the present embodiment, the metallic sheet 13 has the same or substantially the same size as the printing substrate 11 and is provided on the entire surface of the printing substrate 11. For example, the metallic sheet 13 can be formed by using a polyester-based resin having a metallic tone as a base material, and providing an acrylic or other adhesive material to be attached to the printing base material 11 on the back surface. In addition, the metallic sheet 13 may be formed of a metal foil such as a gold foil or a silver foil.

  The image forming ink layer 14 is an ink layer printed by a commercially available printing machine such as an ink jet printer. For example, the image forming ink layer 14 is formed of a single color ink or a plurality of inks having different color tones, and is formed of a printing base having a metallic surface formed thereon. It is applied on the material 11 to form an image. The layer thickness t14 of the image forming ink layer 14 is set to be smaller than the layer thickness t12 of the convex shape forming ink layer 12 (t14 <t12).

  As described above, the printed material 10 is provided with a metallic portion 10A (a dark gray portion in FIG. 1) and a non-metallic portion 10B (a white portion in FIG. 1), as shown in FIG.

  As shown in FIG. 2C, the metallic portion 10A is mainly configured by exposing the metallic sheet 13 to the outside. On the surface of the metallic part 10A, a metallic sheet decoration part 10a for decorating the metallic sheet 13 without hiding most of the metallic sheet 13 is provided. The metallic sheet decorative portion 10a is, for example, a shadow or the like added to the surface of the metallic portion 10A, and can be constituted by narrow lines or dots formed by the image forming ink layer 14.

  The non-metallic portion 10B is mainly configured by hiding the metallic sheet 13 from the outside. The non-metallic portion 10B is configured by entirely covering the surface of the metallic sheet 13 with the image forming ink layer 14.

  The printed matter 10 configured as described above expresses a beautiful metallic color and unevenness as seen by the naked eye, and can give the viewer a high sense of realism and power.

  Next, a printing method for creating the above-described print 10 will be described. This printing method includes the following first to third steps.

(First step)
In the first step of the printing method, the convex shape forming ink layer 12 is printed on the print base material 11 using a printing machine or the like to form a convex shape.
In the present embodiment, the convex shape forming ink layer 12 is printed on the surface of the printing substrate 11 where the metallic portion 10A is formed, and the convex shape forming ink layer 12 is formed on the region where the non-metallic portion 10B is formed. The ink layer 12 is not printed. Therefore, on the surface of the printing substrate 11, a convex shape is formed at a portion where the convex shape forming ink layer 12 is printed.

(2nd process)
In the second step of the printing method, a metallic sheet 13 is attached to the printing base material 11 on which the convex shape is formed using a press or the like to form a metallic surface on the printing base material 11. In the present embodiment, one metallic sheet 13 is attached to the entire surface or substantially the entire surface of the printing base material 11 including the portion where the convex shape is formed and the portion where the convex shape is not formed.

(3rd step)
In the third step of the printing method, the image forming ink layer is formed on the printing base material 11 on which the metallic surface 13 has been formed by attaching the metallic sheet 13 and exposing at least a part of the metallic surface to the outside. 14 is printed by a printing machine or the like to form an image. At this time, the non-metallic portion 10B is coated with the image forming ink layer 14 over the entire surface or substantially the entire surface thereof, and the metallic portion 10A is not coated with the image forming ink layer 14 over the majority thereof. The image forming ink layer 14 is applied in a narrow line or dot shape to form the metallic sheet decorative portion 10a.

  In this way, the printed matter 10 having the high metallicity and the non-metallic part 10B is formed, and has a high realistic sensation, a powerful force, and the like, in which a beautiful metallic color and unevenness as seen by eyes are expressed. Can be.

[Another embodiment]
(1) In the above-described embodiment, as shown in FIG. 2, the case where the metallic sheet 13 is provided on the entire surface of the printing base material 11 has been described as an example. May be provided with a metallic sheet 13.

(2) In the above-described embodiment, the printed matter 10 in which gold is expressed on at least a part of the surface is described as an example, but the printed matter is expressed with another metal color such as silver on at least part of the surface. Is also good.

(3) In the above-described embodiment, when a plurality of metallic colors having different tones are expressed on the surface of the printed material 10, a plurality of metallic sheets 13 having different metallic colors may be arranged on the printing substrate 11. Good.

(4) In the above-described embodiment, the convex shape forming ink layer 12 is formed on a part of the surface of the printing base material 11, and the portion having the convex shape forming ink layer 12 on the surface of the printing base material 11 and the convex shape are formed. The case where the convex shape is formed on the printing base material 11 by using the difference in height from the portion having no forming ink layer 12 has been described as an example. A plurality of convex shapes having different heights may be formed on the printing base material 11 by changing the number of times for each part.

DESCRIPTION OF SYMBOLS 10 Printed matter 10A Metallic part 10a Metallic sheet decoration part 10B Non-metallic part 11 Printing base material 12 Convex shape forming ink layer 13 Metallic sheet 14 Image forming ink layer

Claims (3)

A printing substrate,
A convex shape forming ink layer provided on the printing base material to form a convex shape,
A metallic sheet that is provided on the printing substrate on which the convex shape is formed to form a metallic surface,
An image forming ink layer that is provided on the printing substrate on which the metallic surface is formed, and forms an image in a state where at least a part of the metallic surface is exposed to the outside; .   The printed matter according to claim 1, wherein the convex shape is provided at a metallic portion that exposes the metallic surface to the outside. A printing method for creating a printed matter according to claim 1 or 2,
A first step of printing the convex shape forming ink layer on the printing base material to form the convex shape;
A second step of pasting the metallic sheet on the printing base material on which the convex shape is formed to form a metallic surface,
A third step of forming an image by printing an image forming ink layer in a state where at least a portion of the metallic surface is exposed to the outside on the printing base material on which the metallic surface is formed. Printing method.