JPH0699196B2 - Photo porcelain and its manufacturing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a photographic porcelain capable of vividly reproducing a red color in a color photograph and a method for manufacturing the same.

[Prior Art] In recent years, a color photograph is attached to the surface of the ceramics as a decoration or a special photograph of the ceramics.

In this way, a photographic ceramic with a photo on the surface of the ceramic is
Combined with the non-discoloring property, non-combustibility, water resistance of ceramics, and the precision of images in photographs, beautiful images can be stored semipermanently. In particular, photoceramics with color photographs have high utility value and are expected to be used in various fields.

By the way, magenta, yellow, cyan (and black) pigments are usually used to reproduce a color image on a ceramic.

The three primary colors of colored light are red, green, and blue-violet, but if white light is applied to the color material and red light is absorbed, the color material is called cyan. Similarly, when white light is applied to a color material, if green light is absorbed, that color material is magenta, and if bluish purple light is absorbed, that color material is called yellow (yellow). That is, cyan = white light-red light magenta = white light-green light yellow = white light-blue-violet light.

In this way, the colors of the color materials (cyan, magenta, yellow) in which the three primary colors of the respective colored lights have been absorbed from the white light,
The three primary colors of color materials.

Here, when the magenta color of cyan among the three primary colors of the color material is combined, cyan + magenta = white light-red light-green light = blue light, resulting in a bluish purple color.

Similarly, yellow + cyan = green and yellow + magenta = red.

In this way, when reproducing red, magenta and yellow are combined, but the red that is reproduced by combining magenta and yellow pigments becomes a brownish red and does not become true red (red) and is vivid. There is a problem of chipping.

Therefore, when reproducing bright crimson, it has been proposed to use a spot color red pigment instead of magenta, and it has been partially adopted.

[Problems to be solved] However, although the special-color red pigment reproduces a bright crimson color, it is sensitive to temperature, so it volatilizes when baked in a high-temperature state for a long time, and easily with other color pigments. Since it has a property of reacting, it is difficult to use the special red pigment, and it is very difficult to reproduce crimson. Furthermore, since this special red pigment has a strong hiding power, when it is placed on cyan, black, or the like, the colors of these pigments are blurred, and the entire color image cannot be reproduced beautifully.

The present invention has been made in view of these problems,
It is an object of the present invention to provide a photographic porcelain and a method for producing the same, which can reproduce the entire color image beautifully without impairing the vivid crimson of the special color red.

[Means for Solving the Problems] In order to achieve the above object, a photographic ceramic of the present invention, in which a pigment is placed on the surface of the ceramic to reproduce a color image of a photograph,
The spot color red pigment is placed on the portion that reproduces the red color of the color image, and at least one kind of any of cyan, yellow, and magenta is placed on the portion that reproduces colors other than red, and the spot red pigment A transparent protective layer is formed between the pigment and other pigments to reproduce a color image.

Further, the method for producing a photographic ceramic of the present invention, at least one kind of any one of cyan, yellow and magenta is placed on a portion of the surface of the ceramic which reproduces a color other than red and baked, and A special color red pigment is placed on the part that reproduces red color and baked for a short time, and a transparent protective layer is formed between the special color red and other pigments. It is configured to manufacture a photographic porcelain having a color image reproduced on the surface thereof by firing during firing of the red pigment, at the same time as firing of the other pigment, or at the same time of firing of the special color red pigment.

[Operation] As described above, according to the photographic ceramics of the present invention and the manufacturing method thereof, the spot color red pigment is placed only on a portion where red color needs to be reproduced, and the spot color red pigment and the other pigment are transparent. By forming the protective layer of, the reaction with other pigments, especially the yellow pigment, is prevented, and a bright crimson is reproduced.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an enlarged cross-sectional view showing a laminated state of a photograph portion of an embodiment of the photographic ceramics of the present invention.

In the figure, reference numeral 1 is a ceramic (substrate) for forming a product, which is made of fine ceramics, ware, tiles and the like. Therefore, in this specification, "porcelain" means
It is meant to include fine ceramics, pottery, and tiles.

2a is a transparent glass layer, which is formed on the upper surface of the ceramics 1. This glass layer 2a prevents the reaction between the ceramic 1 and the pigment and smoothes the surface of the ceramic. Therefore, it can be omitted if the ceramic material is not reactive with the pigment and is smooth.

3 is a yellow pigment layer in the three primary colors, 4 is also a magenta pigment layer, 5 is a cyan pigment layer, and any pigment layer is sequentially formed depending on the color image to be reproduced (excluding the portion that reproduces red color). It is laminated on the required part. That is, one kind of these pigment layers 3, 4, or two or three kinds of these pigment layers 3, 4, and 5 are laminated by arbitrarily laminating each color other than crimson red. Reproduce by subtractive mixing method.

The order of stacking the yellow, magenta, and / or cyan pigment layers 3, 4, and 5 can be changed as necessary. It is also possible to interpose a transparent glass layer between the pigment layers 3, 4 and 5.

It should be noted that when yellow, magenta, and cyan are overlapped, black is expressed. However, if this black lacks in blackness, black is provided on the upper surface required portion of the uppermost pigment layer (in some cases, transparent glass layer). A pigment layer (not shown) may be formed.

The above-mentioned pigment layers 3 and 4 and the transparent glass layer 2a each have a thickness of 1 to 4 μm, and the total thickness is 4 to 16 μm.
Although the thickness is m, it is preferable to form it as thin as possible in order not to make the special color red pigment layer 10 described later too thick.

The spot color red pigment layer 10 is formed in a portion that reproduces the red color of the color image, that is, in a white portion where yellow, magenta and / or cyan pigments are not laminated. The thickness of the characteristic red pigment layer 10 is generally about the same as or thinner than the thickness of the yellow, magenta and / or cyan pigment layers 3, 4, and 5 laminated.

Reference numerals 2b and 2c denote glass layers, of which the glass layer 2b is formed over the entire upper surface of each pigment layer that reproduces an image, and prevents volatilization of the pigment. Further, the glass layer 2c is formed on the peripheral surface of another pigment mainly composed of cyan, magenta and / or yellow, which is adjacent to the special color red pigment layer. As a result, the glass layer 2c prevents the reaction of the special color red pigment with other adjacent pigments, and reproduces bright red (red).

The structure of the photographic ceramics of the present invention is not limited to that of the above-mentioned embodiment, and the red part of the color image is reproduced by the special color red pigment, and the parts other than red are reproduced by the pigments such as yellow, magenta and cyan. Any structure may be used as long as it is protected by the glass layer 2c so that these pigments do not react and the volatilization of the special color red pigment is prevented by the glass layer 2b.

In addition, the special color red pigment layer 10 for the laminated pigment layers 3, 4,
By adjusting the thickness of the glass layer or the laminated state of the glass layers 2b and 2c, it is possible to make unevenness in the red portion, and by doing so, it is possible to give the reproduced color image a three-dimensional effect.

Next, the method for producing a photographic ceramic of the present invention will be described.

The manufacturing method in this case employs a so-called direct method in which a film is attached to the surface of the ceramics (substrate) 1 and then the film is developed, and a pigment is placed according to the image that appears and then baked.

Hereinafter, the manufacturing method of the photo-ceramic will be described in detail by taking the case of manufacturing the photo-ceramic of the first embodiment shown in FIG. 1 as an example.

A transparent glass layer 2a is formed on the surface of the ceramics (substrate) 1. In addition, the ceramic material is of a material that does not react with the pigment,
Moreover, when the surface is smooth, the glass layer 2a can be omitted.

Depending on the image, 1 part of the yellow pigment is applied to the part of the ceramic 1 that requires yellow (excluding the part that reproduces red).
It is placed with a thickness of ˜4 μm and baked at a temperature of 800 to 1000 ° C. for 2 to 20 minutes to form a yellow pigment layer 3.

Depending on the image, magenta pigment is placed on the portion requiring magenta (excluding the portion that reproduces red color) in a thickness of 1 to 4 μm, and baked at a temperature of 800 to 1000 ° C. for 2 to 20 minutes,
The magenta pigment layer 4 is formed.

Depending on the image, place the cyan pigment in a thickness of 1 to 4 μm on the area that requires cyan, and 800 to 1000 for 2 to 20 minutes.
The cyan pigment layer 5 is formed by firing at a temperature of ° C.

When reproducing a vivid black color, a black pigment having a thickness of 1 to 4 μm is placed on a required portion on the upper surface of the cyan pigment layer 5 and baked at a temperature of 800 to 1000 ° C. for 2 to 20 minutes.

As a result, a color other than red is reproduced on the top surface of the pottery in a state in which the portion that reproduces red is so-called white (see FIG. 2).

Also, a transparent glass layer may be formed between the pigment layers 3, 4, and 5, respectively.

As a method of reproducing a color image excluding the above-mentioned red portion, a method other than the above can be adopted, and, for example, these are collectively fired in a state where all necessary pigment layers and transparent glass layers are laminated. It is also possible to employ a method or a method of laminating two or three pigment layers and transparent glass layers and firing them.

Next, the cyan, magenta and yellow pigment layers 3, 4,
Around 5 (at least the peripheral surface adjacent to the special color red pigment)
Is covered with transparent glass having a thickness of 1 to 4 μm, and is covered for 2 to 3 minutes.
The transparent glass layer 2c as a protective layer is formed by firing at a temperature of 800 to 1000 ° C.

Next, the spot color red pigment is placed on the portion for reproducing red color of the color image, that is, the white portion surrounded by the transparent glass layer 2c so as not to come into direct contact with other pigments, with a thickness of 2 to 8 μm. Bake at a temperature of 800-1000 ℃ for ~ 3 minutes,
A spot color red pigment layer 10 is formed.

Finally, in order to place the transparent glass layer 2b and perform the tightening,
The whole is baked for about 20 minutes at a temperature of 800-1000 ° C.

The transparent glass layer 2c may be fired at the same time as the other pigments of cyan, magenta and yellow, or at the same time as the special color red pigment layer 10. Further, the transparent glass layer 2b can be fired at the same time as the special color red pigment layer 10, and in this case, the volatilization of the special color red pigment can be effectively prevented.

According to such a photographic ceramic of the present invention, it is possible to reproduce a precise color image, the photograph does not discolor, does not burn,
Furthermore, since it is not damaged even if it gets wet with water, it can be used as various products as follows.

(B) Photographed station signs, photo-guides, photo-labels, etc.

By using photo porcelain, it is possible to enhance the expressive power of these with letters and photographs.

(B) Maps, blueprints, preservation of important cultural properties, certificates, show window displays, etc.

These can be stored and used for a long period of time by using photographic ceramics.

(C) Election posters, photos of wanted criminals, tombstones, memorial images, etc.

These can improve the durability against wind and rain by using a photo-ceramic.

(D) Masterpieces for bathrooms / baths, tabletops for desks / kitchens, bottles of sake, western sake, etc., business cards, name tags, etc.

These can be made to have a high-class feeling by using photographic ceramics.

(E) Name tags for lockers, name tags for various back cases, etc.
Travel supplies, etc.

These can be used for a long period of time by using photographic ceramics.

(F) Reproduction of paintings, postcards, trophies / shields, cufflinks, pendants, watches, CD jackets, etc.

By using photo porcelain, it is possible to give them a feeling of quality and a sense of quality.

(G) Other products that can be manufactured using ceramics.

The photographic porcelain of the present invention can be applied to not only flat porcelain but also curved porcelain. In the case of this curved surface photographic porcelain, a material having a softening temperature slightly lower than the firing temperature is used as the material of the porcelain. This way,
After attaching a photograph to a plate-shaped ceramic, the ceramic can be softened and bent into an arbitrary curved surface within a temperature range that does not adversely affect the photograph, and a curved photograph ceramic can be obtained.

[Effects of the Invention] As described above, according to the photographic porcelain of the present invention, it is possible to obtain a photographic porcelain that beautifully reproduces the entire color image without impairing the vivid crimson of the characteristic red.

Further, according to the manufacturing method of the present invention, it is possible to easily and reliably manufacture the above-mentioned photographic ceramics.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view showing a laminated state of a photograph portion of an embodiment of the photographic ceramics of the present invention, and FIG. 2 is a state in which a red portion of a color image is outlined (a pigment is laminated on portions other than the red portion) It is an expanded sectional view of a photograph part. 1: Ceramics (substrate) 2a, 2b, 2c: Transparent glass layer 3: Yellow pigment layer, 4: Magenta pigment layer 5: Cyan pigment layer, 10: Special color red pigment layer

Claims (4)

[Claims] 1. A photographic porcelain in which a pigment is placed on the surface of a porcelain to reproduce a color image of a photograph, and a special color red pigment is placed on a portion of the color image that reproduces red to reproduce a color other than red. At least one kind of any of cyan, yellow, and magenta pigments is placed on the part, and a transparent protective layer is formed between the special color red pigment and other pigments to reproduce a color image. Photo porcelain characterized by. 2. At least one pigment selected from cyan, yellow, and magenta is placed on a portion of the surface of the ceramics that reproduces a color other than red, and the pigment is baked, and then adjacent to the special color red pigment. A transparent protective layer is formed on the peripheral surface and baked, and then a special red pigment is placed on the part of the surface of the ceramic that reproduces the red color and baked for a short time to produce a photographic ceramic that reproduces a color image on the surface. A method of manufacturing a photographic porcelain characterized by manufacturing. 3. At least one pigment selected from cyan, yellow, and magenta is placed on a portion of the surface of the ceramics that reproduces a color other than red, and a transparent material is provided around the special red pigment of the pigment. A protective layer is formed and these are baked at the same time, and then a special color red pigment is placed on the part of the surface of the ceramic that reproduces the red color and baked for a short time to produce a photographic ceramic that reproduces a color image on the surface. A method for manufacturing photographic ceramics characterized by the above. 4. At least one pigment selected from cyan, yellow and magenta is placed on the portion of the surface of the ceramics that reproduces a color other than red, and the pigment is baked, and then adjacent to the special red pigment. By forming a transparent protective layer on the peripheral surface, placing a special color red pigment on the portion of the surface of the ceramic that reproduces red color, and firing the protective layer and the special color red pigment at the same time for a short time, the surface is colored. A method for producing a photographic ceramic, which comprises producing a photographic ceramic that reproduces an image.