JPH07179017A - Method for revealing soft metallic effect and cubic effect on printing surface - Google Patents

Abstract

PURPOSE:To provide a method for simultaneously revealing soft metallic effect and cubic effect of printing pattern in various printings. CONSTITUTION:On the whole surface or some part of the desired printing pattern on one side of base material, metal foil having solid shade or gradational shade by dots is stamped. Further, on the surface of the stamped portion, the desired printing pattern is applied with single colored or multi-colored printing in solid or by dots so as to reveal soft metallic effect or cubic effect on the printing surface, in which the whole surface or some part of printing pattern is stamped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing technique for simultaneously producing a soft metallic effect and a three-dimensional effect of a printed pattern in various printings.

[0002]

2. Description of the Related Art Conventionally, in order to exhibit a metallic effect and a three-dimensional effect of a printed pattern, a metal foil is stamped on the surface of the printed pattern and embossed on it, and the pattern is printed on the surface of the metal foil which is solidly stamped. Although some of them were embossed on top, they had the drawback that the effects of expressing soft metallic effect, three-dimensional effect, solid feeling, astringency, depth, etc. were insufficient.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method capable of simultaneously exhibiting a soft metallic effect and a three-dimensional effect on a printing surface, and at the same time imparting a feeling of force, a feeling of solidity, astringency, depth and the like. To do.

[0004]

The present invention has been proposed in order to achieve the above-mentioned object, and is characterized in that a metal foil having a shade is printed on a printed pattern. In addition, after performing multicolor printing on it, embossing is performed. That is, according to the present invention, a whole or a part of a desired printed pattern on one surface of a substrate is subjected to a metal foil stamping of a metal foil having a gradation of shades of solid or halftone dots, and the surface of the stamped portion is subjected to the above-mentioned process. The desired print pattern is printed in solid or multi-color with solid or halftone dots,
Provided is a method for embodying a soft metallic effect and a three-dimensional effect on a printed design, characterized by embossing the whole or a part of the printed design.

[0005]

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises steps of selecting a base paper, stamping with a gradation of gradation, printing, and embossing. If necessary, an anchor treatment for fixing a metal foil is performed. After the application, printing and embossing are performed. The printing pattern used in the present invention is not particularly limited, but judging from the effect of the three-dimensional appearance, it is particularly various sports landscapes, mountain landscapes, various vehicles, buildings, metal containers, tableware, flowers. Effective against animals, fish, pottery, and haniwa. The method is such that the whole or a part of a desired printed pattern on one side of a base material is subjected to a metal foil stamping of a metal foil having a gradation of shades or solid dots, and the desired printed pattern is provided on the surface of the stamped portion. The solid or halftone dots are used to perform monochromatic or multicolor printing, and the entire or a part of the printed pattern is embossed, whereby a soft metallic effect and a three-dimensional effect can be exhibited on the printed surface. Next, the method of the present invention will be specifically disclosed.

<Substrate> As the substrate, high quality paper, pure white roll paper, kraft paper, paperboard, art paper, coated paper, cast coated paper, matte coated paper, fancy paper, Japanese paper, synthetic paper, non-woven fabric, resin impregnation Paper, various plastic films and the like are used, and those having a basis weight of 50 to 500 g / m ² , and preferably 100 to 410 g / m ² are appropriately selected and used according to the application.

<Foil Stamping> The foil stamping is applied to the entire surface or a part of the desired pattern on the base material in a stepwise shade by the solid shade or halftone dot of the pressure plate or cylinder type plate. As the material of the foil, silver foil, gold foil, copper foil, pearl foil, pigment foil, etc. are used, and the thickness thereof ranges from 2 to
Those having a thickness of about 4 μm are preferably used. In addition, the gradation of gradation due to halftone dots is 50 to 150
Given by a line. Further, if necessary, anchor treatment is performed for the purpose of fixing the metal foil layer and adhering the ink to the metal foil layer, and as the anchor agent, an acrylic resin, vinyl chloride-vinyl acetate resin, polyester resin, or A blend of vinyl chloride-vinyl acetate-based resin and polyester-based resin, etc. is used, and it is 5-10 in absolute dry conversion.
g / m ² treatment.

<Printing> Printing is performed by printing the same pattern used for the foil stamping on the foil stamping by a usual printing method such as offset, letterpress or gravure, and by solid or multicolor printing, for example, 4 colors to 6 colors. Color printed. If necessary, an overcoat with a varnish may be finally applied for the purpose of surface protection.

<Embossing> Embossing is applied to a part or the whole surface of the printing pattern by a flat pressure type or a set of cylinders, and one-sided embossing and punching pressing are selectively used depending on the printing pattern, and the embossing depth 30 A thickness of 400 μm is appropriately selected to give a steric effect.

[0010]

EXAMPLES Next, the present invention will be specifically described with reference to Examples and Comparative Examples, but this is for explaining the effects of the present invention, and the present invention is not limited thereto.

<Example 1> As a base material, a basis weight of dull art paper (matte art paper) of 128 g / m ² was used, and a printed pattern "Hanairi" was treated on one surface of the paper as follows to obtain the effect of the present invention. Made it work. First of all, "flower iris" on one side of the base material
The silver foil is applied to the flower and leaf parts according to the pattern of No. 1 by a flat press type foil stamping machine (manufactured by Ikeda foil stamping station) with a screen wire number of 150, a gold foil thickness of 3 μm, and a speed of 6000 frames / hour. Applying a hot stamping, and using a baby offset printing machine (manufactured by Komori Printing Machine) on the hot stamping, 300
Under the condition of 0 sheets / hour, four-color printing of halftone dots by offset (sumi-eye-black) was performed. Further, the embossing having a depth of 30 to 150 μm on the printing partly is performed by using a flat press type foil stamping machine (manufactured by Ikeda foil stamping machine) and punching and embossing at a speed of 500 sheets / hour to print. A soft metallic effect and a three-dimensional effect were developed for the design.

<Example 2> A basis weight of 157 g / m ² of art paper was used as a base material, and a printed design "passenger car" was printed on one side of the paper.
Was treated as described below to exert the effect of the present invention. First, along with the "passenger car" pattern on one surface of the base material, gold foil was applied to the entire surface of the passenger car using a cylinder type foil stamping machine (Tahara foil stamping machine Mfg. Co., Ltd.) with a screen wire number of 140 and a silver foil thickness of 3μ.
AFUL-54 (a blend of vinyl chloride-vinyl acetate resin and polyester resin, made by Tokyo Ink) was applied as an anchor treatment on the foil stamping by applying a foil stamping with a gradation of light and shade under the conditions of m, speed 1000 RPM / hour. Was coated on a flatbed gravure printing machine (manufactured by Komori Printing Co., Ltd.) under conditions of 3000 sheets / hour in an absolute dry conversion of 6.5 g / m ^{2 and} dried by a far infrared heater to fix the silver foil layer, and then the anchor On the treatment, four-color printing of halftone dots by offset (Sumi-I-Akaki) was performed. Further, the embossing having a depth of 30 to 200 μm partially on the printing was performed by using a flat pressure type foil stamping machine (manufactured by Tahara foil stamping machine manufacturing Co., Ltd.) at a speed of 500.
Punching and embossing were performed under the condition of sheets / hour to develop a soft metallic effect and a stereoscopic effect on the printed pattern.

<Comparative Example 1> A sample print for comparison was obtained in the same manner as in Example 1 except that the foil stamping having the stepwise shading performed in Example 1 was replaced with a solid stamping having no shading. It was

<Comparative Example 2> The foil stamping having the stepwise shading performed in Example 1 was replaced with a solid foil stamping having no shading, and the order of "foil stamping-printing-embossing" was changed to "printing-printing-.
A sample print for comparison was obtained in the same manner as in Example 1 except that the order of "foil stamping-embossing" was used.

[0015]

[Test Method] Based on the samples obtained in Examples 1 and 2 and Comparative Examples 1 and 2, tests were carried out according to the following test items, test methods, and criteria. 1. Soft metallic effect The soft metallic effect of the sample print is visually judged according to the following criteria. (Judgment criteria) ◎ ... Significant effect, ○ ... Effective, △ ... Almost no effect, × ・ ・ ・ No effect Stereoscopic effect Visually judge the stereoscopic effect of the sample print according to the following criteria. (Judgment criteria) ◎ ... Significant effect, ○ ... Effective, △ ・ ・ ・ Most effective, × ・ ・ ・ No effect Solid feeling The solid feeling of the sample print is visually judged according to the following criteria. (Judgment criteria) ◎ ... Significant effect, ○ ... Effective, △ ・ ・ ・ Most effective, × ・ ・ ・ No effect

[0016]

[Test Results] The test results are shown in Table 1.

[Table 1]

[0017]

According to the present invention, as shown in the test result table, a soft metallic effect and a three-dimensional effect can be effectively exhibited in a desired portion of a printed design.

Claims (1)

[Claims] 1. The whole or a part of a desired printed pattern on one surface of a base material is subjected to a foil stamping of a metal foil having a gradation of shades of solid or halftone dots, and the desired printing is performed on the surface of the stamped portion. A method for producing a soft metallic effect and a three-dimensional effect on a printing surface, which comprises printing a single-color or multi-color printing with a solid or halftone dot pattern and embossing the whole or a part of the printed pattern.