JPH02271981A - Photographic pottery and production thereof - Google Patents

Abstract

PURPOSE:To beautifully reproduce a color image over the entire part of a pottery surface without impairing the bright crimson by placing arbitrary pigments on the parts of the pottery surface where colors exclusive of red are to be reproduced and calcining the pigments, then placing the specific red pigment on the part to be reproduced with the red and calcining the pigment for a short period of time. CONSTITUTION:A transparent glass layer 2a is formed on the pottery 1 surface. The pigments of yellow, magenta, cyan, etc., are placed on the parts where the colors exclusive of the red are to be reproduced. The pigments are respectively calcined to form pigment layers 3, 4, 5. The pigment of the special red is then placed on the part to be reproduced with the red and is calcined for a short period of time to form the pigment layer 10 of the special red. The transparent glass layer 2c is formed a top the special red pigment layer 10. Finally, a transparent glass layer 2b is placed thereon and is set by calcination, by which the evaporation of the special red pigment is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to photographic ceramics that can vividly reproduce the red color in color photographs, and a method for manufacturing the same.

[Prior Art] In recent years, color photographs have been attached to the surfaces of ceramics as booklets or special photographs of ceramics.

Photo ceramics, in which photographs are attached to the surface of the ceramics, are
The combination of the discoloration, nonflammability, and water resistance of ceramics, as well as the precision of images provided by photographs, has the effect of allowing beautiful images to be preserved semi-permanently. In particular, photographic ceramics with color photographs have high utility value and are expected to be used in various fields.

By the way, in order to reproduce color images on ceramics, magenta, yellow, and cyan (and black) pigments are usually used.

The three primary colors of colored light are red, green, and blue-violet, but when white light is applied to a coloring material, if it absorbs red light, the color of that coloring material is cyan. If it absorbs green light, the colorant will be magenta; if it absorbs blue-violet light, the colorant will be yellow; that is, yellow - white light - blue-violet light. Become.

In this way, the colors of the coloring materials (cyan, magenta, yellow) in which the three primary colors of each colored light are absorbed from white light are
These are called the three primary colors of coloring materials.

Here, if cyan and magenta of the three primary colors of coloring materials are combined, yellow + cyan = green yellow + magenta red will be obtained in the same way.

In this way, when reproducing red, magenta and yellow are combined, but the red reproduced by combining magenta and yellow pigments is a brownish red, not true red (crimson) and less vivid. There is a problem with missing parts.

Therefore, in order to reproduce vivid crimson, it has been proposed to use a special red pigment instead of magenta, and this has been adopted in some cases.

[Problems to be solved] However, although the special red pigment reproduces a vivid crimson color, it is sensitive to temperature, so it evaporates when fired at high temperatures for a long time, and it easily mixes with pigments of other colors. Due to its reactive nature, it is difficult to use special red pigments, and it is extremely difficult to reproduce deep red. Furthermore, this special red pigment has a strong hiding power, so when it is placed on cyan, black, etc., it blurs the colors of these colors, making it impossible to reproduce the entire color image beautifully.

The present invention was made in view of these problems.
To provide photographic ceramics capable of beautifully reproducing the entire color image without spoiling the bright crimson of the special red, and to provide a method for manufacturing the same.

[Means for Solving the Problems] In order to achieve the above object, the photographic ceramics of the present invention reproduce color images of photographs by placing pigments on the surface of the ceramics.
A special red pigment is placed on the part that reproduces red in a color image, and at least cyan, pigment is placed on the part that reproduces colors other than red.
The structure includes one or more pigments selected from yellow and magenta.

In addition, a method for manufacturing photo ceramics that reproduces color images on one surface involves applying at least one pigment selected from cyan, yellow, and magenta to the portion of the ceramic surface that reproduces a color other than red, and then firing it. A special red pigment was placed on the surface of the ceramic to reproduce the red color, and then fired for a short time.

[Effect 1] As described above, the photographic ceramics and the manufacturing method of the present invention prevent reactions with other pigments, especially yellow pigments, by placing the special red pigment only on the areas where red color needs to be reproduced. prevents and reproduces a vivid crimson color.

(Examples) Examples of the present invention will be described below with reference to the drawings.

FIGS. 1(a) and 1(b) are enlarged cross-sectional views showing the laminated state of the photographic part of the first and second embodiments of photographic ceramics.

In the figure, reference numeral 1 denotes ceramics (substrate) that form the product, and is made of fine ceramics, pottery, tiles, etc. Therefore, in this specification, "ceramics" means
Fine ceramics.

This term includes pottery, tiles, etc.

2a is a transparent glass layer, which is formed on the L side of the ceramic l. This glass layer 2a prevents the reaction between the ceramic, 1, and the pigment, and also smoothes the surface of the ceramic. Therefore, if the ceramic material does not react with pigments and is smooth, it can be omitted.

3 is a yellow pigment layer among the three primary colors, 4 is a magenta pigment layer, and 5 is a cyan pigment layer. Depending on the color image to be reproduced (excluding the part that reproduces red), any pigment layer can be used. are sequentially stacked on the required parts. In other words, each color other than crimson red can be produced by laminating one type of these pigment layers 3.4.5 or two or three types of these pigment layers 3.4.5. Reproduced by subtractive color mixing method.

The stacking order of the yellow, magenta and/or cyan pigment layers 3, 4.5 can be changed as necessary. It is also possible to interpose a transparent glass layer between each pigment layer 3, 4.5.

When tt8, yellow, magenta, and cyan are superimposed, black is expressed, but if this black lacks blackness, black can be added to the required part of the top surface of the topmost pigment layer (in some cases, the transparent glass layer). A pigment layer (not shown) may also be formed.

Each of the pigment layers 3, 4.5 and the transparent glass layer 2a described above has a thickness of 1 to 4 gm, and the total thickness is 4 gm.
Although the thickness is about 16 mm, it is preferable to form it as thin as possible in order to prevent the pigment layer 10 of the special color yarn described later from becoming too thick.

The pigment layer 10 of the special color yarn is formed on a portion that reproduces the red color of a color image, that is, a white portion where yellow, magenta and/or cyan pigments are not laminated. The thickness of the pigment layer 10 of this special color yarn is usually the same as or thinner than the thickness 5 of the yellow, magenta and/or cyan pigment layers 3, 4.5 laminated.

2b and 20 are glass layers, of which the glass layer 2b is formed over the entire upper surface of each pigment layer that reproduces an image, and the glass layer 2c is mainly formed on the circumferential surface of the pigment layer of the special color thread. be.

In the first embodiment shown in FIG. 1(a), the thickness of the pigment layer 10 of the special color thread is made thinner than the pigment layers 3 and 4.5, and a glass layer 2C is laminated on the top surface of the pigment layer 10, and further, Pigment layer 3, 4.5
A glass layer 2b is formed on the upper surface and the upper surface of the glass layer 2C. In this way, the amount of pigment used in the special color yarn can be reduced, and the pigment in the special color yarn can be prevented from volatilizing and the surface can be protected reliably.

In the second embodiment shown in FIG. 1(b), a glass layer 2b is formed over the entire upper surface of the laminated pigment layers 3, 4.5 and the pigment layer 10 of special color yarn. That is, the pigment layers 3, 4, .
5 and to protect the surface of the pigment layer io of the special color yarn and to prevent volatilization of the pigment of the special color yarn.

The structure of the photographic ceramics of the present invention is not limited to those of the first and second embodiments described above, and the red part of the color image is reproduced with the pigment of the special color thread, and the parts other than red are reproduced with pigments such as yellow, magenta, cyan, etc. Any structure may be used as long as it can be reproduced with a glass layer, protect these pigments with a glass layer, and prevent the pigments of the special color thread from volatilizing1.For example, as shown in Fig. 1 (
As shown in C), a glass layer 2C is formed on the top surface of the pigment layers 3, 4.5 and the bottom and side surfaces of the pigment layer 10 of the special color yarn, and a glass layer 2b is further formed on the top surface of the glass layer 2C and the special color yarn. It may be formed by forming a .

In addition, the thickness of the pigment layer 10 of the special color yarn or the glass layer 2b with respect to the pigment layers 3 and 4.5 which are IIi layers.

By devising the laminated state of 2c, it is possible to make the red part uneven. In this way, it is possible to give the reproduced color image a three-dimensional effect.

Next, the method for manufacturing photographic ceramics of the present invention will be explained.

The manufacturing method in this case is to attach a film to the surface of the ceramic (substrate) 1, develop the film, apply pigments according to the image that appears, and then fire it. The so-called direct method is used.

Hereinafter, the method for manufacturing photographic ceramics will be specifically explained in Sections 1 to 2, taking as an example the case of manufacturing photographic ceramics according to the first embodiment shown in FIG.

■ A transparent glass layer 2a is formed on the surface of the ceramic (substrate) 1. Note that if the ceramic material does not react with pigments and has a smooth surface, the glass layer 2a can be omitted.

■ Depending on the image, apply yellow pigment to a thickness of 1 to 4 gm on the areas of the ceramic l that require yellow (excluding areas that reproduce red), and apply 800 to 10 gm of pigment for 2 to 20 minutes.
The yellow pigment layer 3 is formed by firing at a temperature of 00°C.

■ Depending on the image, apply magenta pigment to a thickness of 1 to 4 gm on areas that require magenta (excluding areas that reproduce red), and bake at a temperature of 800 to 1000°C for 2 to 20 minutes. A magenta pigment layer 4 is formed.

■ Depending on the image, place cyan pigment at a thickness of 1 to 4 gm on the areas that require cyan, and apply 800 gm for 2 to 20 minutes.
The cyan pigment layer 5 is formed by firing at a temperature of ~1000°C.

■ In addition, when reproducing a clear black color, place black pigment on the upper surface of the cyan pigment layer 5 at a thickness of 1 to 4 pm and bake it at a temperature of 800 to 1000°C for 2 to 20 minutes. .

As a result, a color other than red was reproduced on the top surface of the ceramic piece, with the red color reproduced as a so-called white outline (see Figure 2).

Moreover, each pigment layer 3, 4, 5. A transparent glass layer can also be formed between them.

Note that methods other than the above may be used to reproduce the color image excluding the red portions, such as laminating all the necessary pigment layers and transparent glass layers and firing them together. Alternatively, a method of laminating two or three pigment layers and transparent glass layers and firing them can also be adopted.

(Φ Next, add the special red pigment to 11% of the red color of the color image.
A pigment layer of 2 to 8 μm (yellow, magenta and/or cyan pigment layer 3
, 4.5 with a thickness thinner than the laminated thickness), 2-3
A special red pigment layer 10 is formed by firing at a temperature of 800 to 1000° C. for minutes.

(2) Thereafter, a transparent glass with a thickness of 1 to 4 gm was placed on the top surface of the special red pigment layer 10 and heated for 2 to 3 minutes.

The transparent glass layer 2C is formed by firing at 800 to 1000°C.

(2) Finally, the transparent glass layer 2b is placed and the whole is fired at a temperature of 800 to 1000°C for about 20 minutes to perform baking.

Note that the special red pigment layer 10 and the transparent glass layer 2C, as well as these and the transparent glass layer 2b, can be fired at the same time, and in this way, volatilization of the special red pigment can be effectively prevented.

According to the photographic ceramics of the present invention, it is possible to reproduce precise color images, and the photographs do not change color, do not burn, and are not damaged even if they get wet with water. It can be used as a variety of products.

(b) Station signs with photos, information boards with photos, nameplates with photos, etc.

These are made by using photographic ceramics.

Expressive power can be increased through text and photos.

(o) Maps, blueprints 1 Preservation of important cultural properties 1 Certificate of commendation.

shop window displays, etc.

By using photographic ceramics, these can be stored and used for a long period of time.

(c) Election posters, photos of wanted criminals, and tombstones.

Memorial statues, etc.

By using photographic ceramics, these can improve their durability against wind and rain.

(d) Masterpieces for bathrooms and bathtubs, table tops for desks and kitchens.

Bottles of Japanese sake, Western liquor, etc., business cards, name tags, etc.

These items can be given a luxurious feel by using photographic ceramics.

(ne) Name tags on lockers, name tags on various bag cases, etc.
Travel supplies etc.

By using photographic ceramics, these can be used for a long period of time.

(f) Reproductions of paintings, postcards, trophies and shields.

Cufflinks, pendants, watches, CD jackets, etc.

By using photographic ceramics, these can be given a sense of texture and luxury.

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

The photographic ceramics of the present invention can be applied not only to flat ceramics but also to ceramics with curved surfaces. In the case of this curved photo ceramic, the ceramic material used is one whose softening temperature is somewhat lower than the firing temperature. In this way,
After attaching a photograph to a flat plate of ceramic, the ceramic is softened within a temperature range that does not adversely affect the photograph, and can be bent into any curved surface to obtain curved photographic ceramic.

[Effects of the Invention] As described above, according to the photographic ceramics of the present invention, it is possible to obtain photographic ceramics in which the entire color image is vividly reproduced without spoiling the vivid crimson of the special red.

Furthermore, according to the manufacturing method of the present invention, the above-mentioned photographic ceramics can be manufactured easily and reliably.

[Brief explanation of drawings]

Figures 1 (a), (b), and (c) are enlarged cross-sectional views showing the laminated state of the photographic part of each example of the photographic ceramics of the present invention, and Figure 2 shows a state in which the red part of the color image is outlined (red part FIG. 3 is an enlarged cross-sectional view of the photographic section with pigments layered on other parts. l: Ceramic (substrate) 2a, 2b, 2c: Transparent glass layer

Claims (2)

[Claims] (1) Photographic ceramics in which pigments are placed on the surface of the ceramic to reproduce the color image of a photograph, and a special red pigment is placed on the part that reproduces the red color of the color image, and the part that reproduces colors other than red. Photographic ceramics characterized in that a color image is reproduced by applying at least one pigment selected from among cyan, yellow, and magenta. (2) At least one or more pigments selected from cyan, yellow, and magenta are placed on the parts of the ceramic surface where colors other than red are to be reproduced and then fired, and then a special red color is applied to the parts of the ceramic surface where red colors are to be reproduced. A method for manufacturing photographic ceramics, characterized in that photographic ceramics with color images reproduced on the surface are manufactured by applying pigments and firing for a short period of time.