JP3220829B2 - Printed sheet having three-dimensional appearance and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing sheet having a three-dimensional appearance and a method for producing the same, and more particularly to a printing sheet having a three-dimensional appearance applicable to various uses such as labels and stickers.

[0002]

2. Description of the Related Art Conventionally, there are various means for three-dimensionally expressing characters and designs by printing.

As the first means, a so-called embossing method, in which a metal engraving roll having irregularities on its surface is pressed against a printed matter to form irregularities on the printed matter itself, that is, a so-called embossing method, is widely used. I have.

[0004] As a second means, Japanese Patent Publication No. 1-1934
By placing a flexible printing sheet on the upper surface of a copper plate having an uneven surface, an etching plate, a photosensitive resin plate, a woodcut, etc., and performing silk screen from the upper surface, as shown in Japanese Patent No. Some use the so-called Takumoto principle.

[0005] As a third means, a character or a pattern is printed with a printing ink containing iron oxide particles attracted by magnetic force, and the iron oxide particles are removed from the lower surface side of the printed matter by magnetic force. There is a type in which a three-dimensional effect is provided by changing the distribution amount of the iron oxide particles by concentrating the iron oxide particles in a portion or by concentrating the iron oxide particles in other portions.

A fourth means is a paint containing light-reflective fine powder such as pearl mica, aluminum powder or the like as disclosed in Japanese Patent Application No. 4-250763 of the earlier application of the present applicant. The printing ink is applied to the entire surface of the printed material, and a conductive metal plate having a shape corresponding to a character or a pattern is applied to the lower surface of the printed material, and a high voltage is applied from the upper surface before the printing ink is dried. In some cases, the distribution amount of the pigment particles having reflectivity in the portion of the conductive metal plate is different from the distribution amount of the pigment particles in the other portion so as to give a three-dimensional effect.

[0007]

However, in the first means, it is necessary to engrave irregularities corresponding to characters and patterns on the surface of the metal roll, which requires a great deal of work and skill. It is.

Also, in the second means, it is necessary to apply the same unevenness processing to the copper plate, the etching plate and the like as described above, and in this case, there is an inconvenience that sharp lines are not formed in design.

In the third means and the fourth means,
It requires an electromagnet and a large-scale device for generating high voltage, and because it is necessary to contain magnetic powder and conductive powder in the printing ink, there is a large restriction on color use, so colorful multicolor printing cannot be performed. There are also issues.

[0010]

The present invention differs from the above-mentioned various means in that it does not require an engraving roll, a plate, or a special device or technique, and thus, inks and paints (hereinafter referred to as generally used) which are generally used in the past. These are referred to as "clear" only) so that a print sheet having a three-dimensional appearance can be easily obtained.

[0011] Namely, the present invention is the substrate in order to form characters and patterns on the surface of the substrate 1, substrate 1 having a smooth surface
1 is greater than the solubility in solvents
Partially marked clear with solubility in small solvents
Transparent entirely clear that printing to partially clear layer 2 and the substrate 1 and the partial clear layer 2 and the particle size. 5 to 100 [mu] m was provided to cover the light-reflecting powder 4 provided is mixed from 5 to 20 wt% And the entirety of the clear layer 6 at a portion where the partial clear layer 2 exists and a portion where the partial clear layer 2 does not exist .
In the printing sheet exhibiting a three-dimensional effect, characterized in that to appear an uneven feeling between the both sites by which imparted a difference in suction of the solvent made different distribution density of the light reflecting powder 4 is there.

Further, the present invention is characterized in that, in addition to the above-described structure, a color is imparted by providing a colored clear layer 7 partially or entirely between the surface of the substrate 1 and the partial clear layer 2. This is a printed sheet that presents a three-dimensional effect.

Further, the present invention relates to a substrate 1 having a smooth surface.
After partially printing a clear having a solubility in a solvent larger or smaller than the solubility of the base material 1 in the solvent on the surface of the base material 1 to provide a partial clear layer 2 of characters and patterns, The transparent clear in which the viscosity is adjusted to 50 to 100 cps and the light-reflective fine powder 4 is dispersed in 5 to 20% by weight is printed on the entire surface covering the base material 1 and the partial clear layer 2, and the solvent is volatilized. Solvent suction between the portion where the partial clear layer 2 exists and the portion where the partial clear layer 2 does not exist
Production of printing sheet exhibiting a stereoscopic effect for causing to appear an uneven feeling between both sites by providing the entire clear layer 6 which distribution densities of different transparency of the light reflecting powder 4 by the difference Is the way.

Further, according to the present invention, a colored clear layer 7 is provided by partially or entirely printing a colored clear on the surface of the substrate 1, and then the substrate 1 or the colored clear layer 7 is formed on these surfaces. After partially printing a clear having a solubility in a solvent that is larger or smaller than that of the solvent, the partial clear layer 2 of characters and patterns is provided,
A transparent clear in which the viscosity is adjusted to 50 to 100 cps by a solvent and the light-reflective fine powder 4 is dispersed in 5 to 20% by weight is printed on the entire surface covering the base material 1 or the colored clear layer 7 and the partial clear layer 2, The solvent is volatilized to remove the solvent in the portion where the partial clear layer 2 exists and the portion where the partial clear layer 2 does not exist .
By providing a transparent full-surface clear layer 6 in which the distribution density of the light-reflective fine powder 4 differs due to the difference in suction, a textured surface appears between the two portions by providing a three-dimensional printed sheet. It is a manufacturing method of.

The configuration of the present invention will be described in detail as follows. Examples of the substrate 1 include a sheet having a smooth surface manufactured using various resins such as vinyl chloride, polyester, acrylic, polycarbonate, and polyurethane currently on the market, a metal plate having a smooth surface, and a glass plate. And a porcelain plate. Wood, concrete, and the like can be used by applying a coating layer having a smooth surface using the above resin to the surface by coating or laminating the surface.

Partial clear layer 2 for forming characters and patterns 3
As long as the solubility or permeability of the clear layer with respect to the solvent is larger or smaller than the solubility or permeability of the base material 1 with respect to the solvent, urethane, acrylic, cellulose acetate, or Resins such as polyester can be used, and two-part curable urethane resins are particularly preferable. The thickness of the clear for forming the characters and patterns is preferably about 5 to 10 μm.

As the light-reflective fine powder 4 to be mixed with the transparent overall clear layer 6, a fine powder having excellent light reflectivity such as metallic mica, mica, and aluminum having a particle size of 5 to 100 μm is preferable. Metallic mica powder represented by mica is preferred. The content of the light-reflective fine powder 4 is preferably about 5 to 20% by weight with respect to the transparent overall clear layer 6.

As the transparent overall clear layer 6 into which the light-reflective fine powder 4 is mixed, a two-component curable urethane having low viscosity and fluidity is desirable. The thickness of the transparent overall clear layer is preferably about 10 to 15 μm.

In forming the transparent overall clear layer 6, the viscosity of the transparent clear used is adjusted to 50 to 100 c by a solvent.
It needs to be adjusted to about ps. Various solvents are used as the solvent used for the adjustment, and a typical example is a thinner.

In forming each layer, it is preferable to apply a screen printing method. If printing is carried out by a screen printing method according to a conventional method, required layers can be formed.

[0021]

The present invention utilizes the difference in solvent solubility or permeability between the base material 1 and the partial clear layer 2 forming the characters and patterns 3 and has a low viscosity of about 50-100 cps and fluidity. The difference in suction of the solvent in the transparent overall clear layer 6 is provided, and the distribution density of the mixed light-reflective fine powder 4 is changed to make it look as if it has irregularities.

That is, in the present invention, the difference in the distribution density of the light-reflective fine powder 4 dispersed in the transparent whole-surface clear layer 6 causes a difference in the degree of reflection by light from the outside, resulting in characters and designs. It is considered that the texture of the three portions and the other portions appears as if they had been subjected to unevenness processing. The greater the difference in solubility or permeability between the partial clear layer 2 forming the design 3 and the partial clear layer 2, the more conspicuous the unevenness is.

The reason why the texture of the unevenness appears in the present invention is that the solubility or permeability of the base material 1 and the partial clear layer 2 with respect to the solvent used for the transparent overall clear layer 6 as described above. The reason is that the difference is due to the difference in distribution density of the light-reflective fine powder 4 due to the difference between the solubility of the substrate 1 and the partial clear layer 2 in the solvent used when forming the transparent full-surface clear layer 6. When the size of the permeability is reversed,
This is due to the fact that the texture of the irregularities between the characters and the design portion and the base material portion was reversed, but it is not strictly clear.

Further, a colored clear layer 7 is provided on a part or the entire surface of the substrate 1, a partial clear layer 2 for forming characters and patterns 3 is provided on the upper surface thereof, and a transparent clear layer is provided on the upper surface thereof. In the case where 6 is provided, it is as if unevenness processing is performed in a state where a part or the whole of the character or design 3 part and the other part is colored due to the difference in distribution density of the light reflective fine powder 4. It has a nice texture.

[0025]

【Example】

Example 1 FIGS. 1 and 2 are a plan view and a partially longitudinal sectional end view of a printing sheet according to a first embodiment of the present invention. In the drawing, reference numeral 1 denotes a 50 μm-thick transparent vinyl chloride film (product First name M5
412 P-5: substrate by Lintec Co., Ltd.)
On the surface of the base material 1, a character or pattern is formed using a two-pack curing type urethane tank with a viscosity of 400 cps (trade name: S-612-8: manufactured by Seiko Advance Co., Ltd.) so that the character or pattern 3 is formed as a punching die. After forming a partial clear layer 2 having a thickness of 8 μm by screen printing on the entire surface except the part 3,
And dried over 60 minutes with hot air, and the whole surface of the two-part curable urethane tank is adjusted to a viscosity of 80 cps with a thinner and contains 5% by weight of metallic mica powder 4 having a particle size of 10 to 50 μm. A 15 μm thick transparent full-surface clear layer 6 was formed by screen printing in a state where the partial clear layer 2 other than the characters and patterns 3 was much less soluble in thinner than the substrate 1. After about 10 seconds, as the thinner was volatilized, a smooth printed sheet was obtained in which the characters formed as blank characters and the pattern 3 in the light gray transparent background appeared to be raised above the other portions. In addition, the surface of the printing sheet did not feel unevenness even when touched with a finger.

Example 2 FIG. 3 is a partial longitudinal sectional view of a printing sheet according to a second example of the present invention. A vinyl chloride-based coloring ink (trade name: SG700) is applied to the entire surface of the substrate 1 used in Example 1. Series 7
10 Black: A black colored clear layer 7 having a thickness of 10 μm is provided by screen printing using a Seiko Advance Co., Ltd., and the partial clear is formed on the upper surface under the same conditions and under the same conditions as in Example 1. Layer 2 and metallic mica powder 4
When the transparent full-surface clear layer 6 was formed, a smooth printed sheet was obtained in which the characters and the design 3 appeared in a dark gray background on the entire surface as if they were floating above the other portions.
In addition, the surface of the printed sheet did not feel unevenness even when touched with a finger.

Example 3 As a substrate 1, a transparent polyester film having a smooth surface and a thickness of 188 μm (trade name: Lumirror Toray Co., Ltd.)
The clear layer 2 is screen-printed on the surface of the substrate 1 under the same conditions and under the same conditions as in Example 1.
After being naturally dried in a room at 23 ° C. for 60 minutes, the entire surface of the base material 1 that is not dissolved in the thinner and the partial clear layer 2 that is soluble in the thinner is transparent under the same conditions as in Example 1 under the same conditions. When the entire clear layer 6 was formed, the portion of the character and the pattern 3 appeared to be recessed from the other portion in the light gray transparent ground, contrary to Example 1, as the thinner volatilized in about 10 seconds. A smooth printed sheet was obtained. In addition, the surface of the printed sheet did not feel unevenness even when touched with a finger.

Example 4 A black colored clear layer 7 made of the vinyl chloride coloring ink used in Example 2 was provided on the entire surface of the substrate 1 used in Example 3 and Under the same conditions and under the same conditions, when the partial clear layer 2 and the transparent overall clear layer 6 containing the metallic mica powder 4 were formed, the outline of the characters and the design 2 was darker than that of Example 3 in a dark gray background. As a result, a printed sheet which was sharp and appeared to be depressed from other portions was obtained.

Example 5 As a substrate 1, a ready-made aluminum plate having a thickness of 0.5 mm and a black acrylic resin baked on the surface was used, and the upper surface thereof was partially cleared under the same conditions and under the same conditions as in Example 1. After printing the layer 2 and naturally drying it in a room at 23 ° C. for 60 minutes, the partial clear layer 2 is more soluble in thinner than the substrate 1, and the entire upper surface thereof is coated with Example 1. Under the same conditions and under the same conditions, when a transparent overall clear layer 6 was formed, a portion of the characters and the pattern 3 appeared in a dark gray background similar to that in Example 3 in a state recessed from other portions. was gotten.

Example 6 As a substrate 1, a black colored clear layer 7 and a partial clear layer 2 were printed on the surface of the ready-made aluminum plate used in Example 5 under the same conditions and under the same conditions as in Example 2. Then, after being naturally dried in a room at 23 ° C. for 10 minutes, the partial clear layer 2 is more soluble in the thinner than the substrate 1, and the entire upper surface thereof is subjected to the same conditions and conditions as in Example 1. When the transparent clear layer 6 is formed on the entire surface, the outline of the character or pattern 3 is sharper than that of the fifth embodiment in a dark gray background, and looks smoother than other parts. A printed sheet was obtained.

In the above embodiment, the partial clear layer 2 made of two-component curable urethane is applied to the entire surface other than the characters and patterns 3 so that the characters and patterns 3 are formed as blank characters.
Has been described, conversely, in consideration of the material of the base material 1, a partial clear layer of two-component curable urethane may be provided by printing on the character or design 3 portion.

Other Examples In the above Examples 2, 4 and 6, the case where the colored clear layer 7 of the same color is provided on the entire surface of the substrate 1 is described. But you can
Several different colors may be used.

The colored clear layer 7 is not limited to the surface of the substrate 1, but may be provided partially or entirely on the back surface of the transparent substrate 1 as shown in FIG. Also in this case, the state seen from the surface does not change.

Further, in the printed sheet according to the present invention, a transparent protective clear layer 8 is further provided as a protective layer on the surface of the uppermost transparent overall clear layer 6 as shown by a two-dot chain line in FIG. Is also good.

When an aluminum plate not coated with an acrylic resin is used as the substrate 1, the aluminum sheet is insoluble in the thinner. Is obtained.

[0036]

According to the present invention, as shown in the above embodiment, the characters and patterns and other parts are made uneven without performing physical unevenness processing on the surface of the smooth base material. Thus, a printed sheet having a three-dimensional appearance in which a rough texture or a reverse uneven texture appears is obtained.

Since characters and designs can be arbitrarily applied by printing, complicated characters and designs can be easily obtained. Further, by applying coloring to characters and design parts including the base material, a printed sheet exhibiting a three-dimensional effect of free design and color use can be obtained.

The printed sheet according to the present invention may be used as it is as a printed matter, but it can be widely used as various labels and stickers by providing an adhesive and release paper on the back surface of the substrate.

Moreover, the remarkable effect of the present invention is that the printing technology alone does not require large-scale equipment such as engraving rolls, various types of plates having irregularities on the surface, electromagnets, high voltage generators, and the like. The point is that a multicolor printing sheet exhibiting a feeling can be easily and inexpensively obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of the present invention.

FIG. 2 is a partial vertical cross-sectional end view of a central portion of FIG. 1;

FIG. 3 is a partial vertical cross-sectional end view of a central portion of another example of the present invention.

FIG. 4 is a partial longitudinal sectional end view of still another example of the present invention.

[Explanation of symbols]

1 base material 2 partial clear layer
3 Characters and patterns 4 Light-reflective fine powder 6 Transparent overall clear layer
7 Colored clear layer 8 Transparent protective clear layer

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Asahi Maekawa 1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries, Ltd. Akashi Plant (56) References JP-A-4-358565 (JP, A) (58) ) Surveyed field (Int.Cl. ⁷ , DB name) B41M 1/00-7/02

Claims (10)

(57) [Claims] 1. A substrate 1 having a smooth surface and a solvent for forming a character or a pattern on the surface of the substrate 1.
For large or small solvents compared to the solubility
That solubility of the clear with partially printed provided partial clear layer 2 and the substrate 1 and the partial clear layer 2 and the particle size. 5 to 100 [mu] m was provided to cover the light reflective fine particles 4 5-20 Consisting of a clear overall clear layer 6 which is mixed with
The suction of the solvent in the entire surface clear layer 6 at the part where the partial clear layer 2 exists and the part where the partial clear layer 2 does not exist
A printed sheet having a three-dimensional appearance, characterized in that a difference in the distribution density of the light-reflective fine powder 4 is made different so as to make a rough texture appear between the two portions. 2. The three-dimensional printed sheet according to claim 1, wherein a colored clear layer is partially or entirely provided between the base material and the partial clear layer. 3. The substrate 1 is made of any one of vinyl chloride, polyurethane, polyester, acrylic and polycarbonate, the partial clear layer 2 is made of urethane, polyester, acrylic and cellulose acetate, and the light-reflective fine powder 4 2. The three-dimensional printed sheet according to claim 1, wherein is a metallic mica, mica, or aluminum powder, and the transparent overall clear layer 6 is a two-part curable urethane. 4. The three-dimensional printed sheet according to claim 1, wherein the colored clear layer 7 is vinyl chloride. 5. The three-dimensional printed sheet according to claim 1, wherein the partial clear layer 2 and / or the transparent entire clear layer 6 are colored with a dye. 6. The printing method according to claim 1, wherein the surface of the substrate having a smooth surface is partially printed with a clear having a solubility in a solvent larger or smaller than that of the substrate in the solvent. After the partial clear layer 2 of the pattern is provided, the viscosity is adjusted to 50 to 100 cps with a solvent, and the transparent clear in which the light-reflective fine powder 4 is dispersed by 5 to 20% by weight covers the base material 1 and the partial clear layer 2. And the solvent is volatilized, and the distribution density of the light-reflective fine powder 4 differs depending on the difference in the suction of the solvent between the portion where the partial clear layer 2 exists and the portion where the partial clear layer 2 does not exist. 6. A method for producing a three-dimensionally printed sheet, characterized by providing a rough feel between the two parts by providing 6. 7. A colored clear layer 7 is provided on the surface of the substrate 1 by partially or entirely printing a colored clear, and then the surface of the substrate 1 or the solvent of the colored clear layer 7 After partially printing a clear having a solubility in a solvent that is larger or smaller than the solubility and providing a partial clear layer 2 of characters and patterns, the viscosity is increased by the solvent.
Adjust the light reflective fine powder 4 to 5-20 cps while adjusting to 50-100 cps.
The transparent clear dispersed in weight% is printed on the entire surface covering the base material 1 or the colored clear layer 7 and the partial clear layer 2, and the solvent is volatilized to remove the part where the partial clear layer 2 exists and the part where the partial clear layer 2 does not exist. The difference in solvent suction at
Production of printing sheet exhibiting a stereoscopic effect for causing to appear an uneven feeling between both sites by providing the entire clear layer 6 which distribution densities of different transparency of the light reflecting powder 4 I Method. 8. The substrate 1 is made of any one of vinyl chloride, polyurethane, polyester, acrylic and polycarbonate, and the clear forming the partial clear layer 2 is made of any of urethane, polyester, acrylic and cellulose acetate. The transparent clear forming the entire surface clear layer 6 is a two-component curable urethane, and the light-reflective fine powder 4 dispersed in the transparent clear is any of metallic mica, mica, and aluminum powder, and adjusts the viscosity of the clear. 8. The method for producing a three-dimensionally printed sheet according to claim 7, wherein the solvent used is a thinner. 9. The method for producing a three-dimensional printed sheet according to claim 7, wherein the colored clear forming the colored clear layer 7 is vinyl chloride. 10. The method for producing a three-dimensional printed sheet according to claim 6, wherein the printed sheet is formed by a screen printing method.