JPS60131880A - Manufacture of photographic ceramic plate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to the production of a photographic ceramic plate in which a photograph is formed on the surface of a ceramic plate such as a ceramic plate or a ceramic plate by sintering (vitrification) of a pigment for painting. It is related to the method.

[Background technology] In general photographs made by printing on photographic paper, a latent image is formed by exposing one layer (two layers in the case of color) of a photosensitive agent layer previously formed on photographic paper through a photographic original plate. The method used is to develop in a developing solution, then stop the development, and desilver with a fixing solution. However, in the case of photographs made by printing on general photographic paper, the coloring components are originally □ photosensitizers. The problem is that the coloring state inevitably changes as time passes, because the coloring agent itself has a limit and oxidizes over time due to the fact that the coloring agent itself has a limit in the manufacturing process of photographic paper. In addition to the problem that it is almost impossible to maintain the same color tone for many years, as the base material is paper, it is difficult to store it for a long time. The problem was that it could not hold up well to exhibition.

In addition, as a method for displaying photographs on ceramic plates such as ceramic plates or porcelain plates, a photograph is pasted on the surface of the ceramic plate using ordinary photographic paper (or the photographic paper itself is made extremely thin). A method has been adopted in which this surface is laminated with a type of synthetic resin that is cured by ultraviolet rays to protect the photograph. This is a novelty in that the base material for photographic paper was simply made of a ceramic plate, etc. (but it did not solve the above problem.

Then, by screen printing itself or by using a transfer technique in which a transfer paper printed by this or other printing technique is transferred to a porcelain plate,
At this time, various methods have been proposed in the past in which a photograph or pattern is formed on the surface of a ceramic plate or the like by using ink mainly containing a decorative pigment, and this is sintered (vitrified).

In the case of conventional methods such as these, since pigments for application are sintered (vitrified) on the surface of a ceramic plate, the color development of the photograph or pattern is semi-permanent.

Also, since the base material is a ceramic plate, it can withstand long-term preservation and display, and the problem of ``photographs printed on photographic paper'' has been solved, but for example, screen printing methods can be used. In the adopted model, since printing is performed using ink mainly containing pigments, the pigments cause clogging of the mesh, so it is necessary to perform a high degree of halftone resolution on the photograph or pattern, that is, to prevent the screen from clogging. There is a problem that the mesh cannot be made small enough, and when methods such as gravure printing are used, the ink containing the above-mentioned pigments does not get on the fine dots and lines, so it is still difficult to make the mesh small enough. There is a problem in that it is not possible to perform halftone dot resolution, and although this method can be put to practical use for simple things such as pictures, it is difficult to apply this method to things that require high resolution such as photographs. However, if this method were to be used to display photographs on the surface of a ceramic plate, it would have to be extremely expensive, and screen printing or transfer of printed materials would have to be used. Because of this, the manufacturing process and equipment for it are large-scale, and the same photos,
Although it is still suitable for mass production when a pattern is displayed on a large number of ceramic plates, it is not suitable for producing individual items or individual orders, and in this case there is a problem of further cost increase.

[Purpose of light] The present invention uses a ceramic plate as a base material to enable long-term preservation and display, and adopts a printing method similar to that of a platform scale in terms of halftone dot separation. Although,
As far as the film of the photographic original plate allows, the halftone dots caused by this separation can be made smaller and the clarity can be improved, and the clarity and color tone are equivalent to or better than those obtained by printing on ordinary photographic paper. The object of the present invention is to provide a method for manufacturing a photographic ceramic plate that has a color tone that is easy to manufacture and can be manufactured at a low cost. It is.

[Disclosure of the Invention] (Example 1) Figures 1 to 4 show a first embodiment of the present invention, and the method for manufacturing a photographic ceramic plate of the present invention is to a first step of laminating the photopolymer 2 in which the photopolymer 2 or the non-photosensitive area becomes sticky;
A second step in which a negative or positive photographic original plate 3 is set on the ceramic plate 1 laminated with the photopolymer 2 and exposed.
The photopolymer 2 becomes sticky through the process and exposure to light.
A third step is to apply a powdered pigment 4 having a desired color tone onto the ceramic plate 1, and then gradually heat and fire the ceramic plate 1 in a kiln, and remove the photopolymer 2 by evaporation or incineration. The present invention also includes a fourth step of sintering the 4N material 4 for decoration onto the surface of the ceramic plate 1. Here, the ceramic plate 1 is a ceramic plate with a flat surface, such as a ceramic plate, a porcelain plate, or a ceramic plate, and even if an unglazed one is used, the surface is glazed like a tile. However, in the following examples, an example of a lifting platform using a glazed surface such as a tile will be described.

First, the first step will be explained. A ceramic plate 1, such as a tile plate, is laminated with a photopolymer 2 whose photosensitive or non-photosensitive areas become sticky. At this time, a film such as the one shown in FIG. A film body 6 [for example, DuPont's Chromalin film - trade name] is prepared, and a layer of the photopolymer 2 of the film body 6 and a layer of the polyester film 7 are layered on the surface of the ceramic plate 1 using a laminating device 5 as shown in Figure 1 (II). Layer 7 is pasted with the layer of Otopolymer 2 on the surface side of ceramic plate 1, and lamination will be performed on the surface of ceramic plate 1. At this time, the lower surface of film body 6 provided as release paper The layer of polypropylene 8 is wound around a take-up roller 11 in the laminating device 5, and the lower surface of the layer of photopolymer 2 from which the layer of polypropylene 8 has been peeled is adhered to the surface of the ceramic plate 1 to perform lamination. .

Here, the layer of polyester film 7 is for protection.

Regarding the photopolymer 2, whether to use a type that makes the photosensitive area sticky or a type that makes the non-photosensitive area sticky is determined in the second step. It is determined whether the photographic original plate 3 is a negative type or a positive type. Next, the laminating device 5 has a configuration as shown in FIG.
3, the remaining photopolymer 2 and polyester film 7 are guided by a guide roller 14 and placed on the ceramic plate 1, and are then rolled up by a heat roller 15 and a pressure roller 16. Lamination on the surface of the ceramic plate 1 is performed by heat-pressure welding between the ceramic plates 1 and 1.

Next, in a second step, a photographic original plate 3 is placed on the surface of the porcelain plate 1, on which a layer of otopolymer 2 and a layer of polyester film 7 have been laminated, and thus on the layer of polyester film 7. After aligning and placing them in close contact with each other, a vacuum baking frame device 9 as shown in FIG. 2(a) is used to irradiate ultraviolet rays as shown in FIG. 2(b). Here, the vacuum baking frame M9 is composed of a vacuum stand 18 and a presser frame 19. The hollow chamber 2O and the work surface 21 on the upper surface of the vacuum table 18 are communicated with each other through communication holes 22 scattered over substantially the entire surface of the work surface. The vacuum stand 18 is connected to a vacuum pump 23, and by operating the vacuum pump 23, the hollow chamber 20 within the vacuum stand 18 can be vacuumed. Next, the presser frame 19 is attached to the vacuum stand 1 so that it can be opened and closed with respect to the work surface 21 of the vacuum stand 18.
A cover film 24 is mounted on the entire surface of this presser frame 19, which is pivoted at the rear of the presser frame 19 and is shaped like a square frame.
is installed. This force 1<--The film 24 is made of an ultraviolet-transparent material that has elasticity and flexibility. Thus, during the exposure work, a ceramic plate 1 with a polyester film 7 and a photo 4
After that, close the presser frame 19 and remove the cover film 2.
4 presses the ceramic plate 1, and the presser frame 19 is connected and fixed to the vacuum stand 18 by a latch or the like. In this hawk state, the vacuum pump 23 is operated to vacuum the air inside the hollow chamber 2O, and the force of the presser frame 19 is increased! (- By reducing the pressure on the lower surface side of the film 24, this cover film 24 is pressed against the surface of the ceramic plate 1 via the work surface 21 and the photographic original plate 3. As a result, this type of ceramic plate 1 is Due to the accuracy of the ceramic plate, there is a problem that the photographic original plate 3 does not adhere well to the surface of the ceramic plate 1 due to some unevenness on its surface. By using the vacuum printing frame device 9 as described above, the cover film 24 uses the force of the vacuum pump 23 to cover the photographic original plate 3 on the top surface of the ceramic plate 1 (more precisely, on the top surface of the polyester film 7 via the photopolymer 2 on the top surface). ), and as a result, the original plate 3 and the photopolymer 2 come into close contact with each other, resulting in good ultraviolet exposure.

Note that in the vacuum baking frame device 9 described above, the presser frame 19 is not an essential element, and if the cover film 24 is placed on the ceramic plate 1'' on the work surface 21 and the vacuum pump 23 is operated in this state, , the cover film 24 is on the work surface 2
The suction is completed on the first side, and the same effect as above can be obtained. Also, whether the photographic original plate 3 is of a negative type or a positive type depends on the type of photopolymer 2, that is, the type that becomes sticky when exposed to light or the type that becomes hardened when exposed to light. The choice is made depending on which type is to be used (which is originally sticky and only the non-exposed areas become sticky when exposed to light), as shown in Figure 2 (b). shows an example using the latter method. Assuming that the dark area of the photographic original plate 3 is the thick hatched area 3a in the figure, the cross section of the photopolymer 2 can be Only the hatched portion 2a becomes sticky.

After the UV exposure is completed in the second step in this way, the painting pigment 4 of a desired color tone is powder-deposited in the step M3. That is, after the layer of polyester film 7 is peeled off from the surface of the ceramic plate 1 that has undergone the step 2, and the layer of photopolymer 2 is exposed, the pigment 4 for painting is applied to a suitable applicator 25. Lightly sprinkled with powder,
The pigment 4 for painting is attached to the part that has become sticky due to exposure (or non-exposure), and the excess pigment 4 for painting is removed by gently wiping. Here, there are generally two types of pigments 4, one for underpainting and one for overpainting, but in this embodiment, a ceramic plate 1 with a glaze already sintered on the surface like a tile is used. Therefore, the pigment 4 used for overpainting will be used. After the third step is completed, this goes to the fourth step, where it is fired in a kiln to sinter the pigment 4 for overlay onto the surface of the ceramic plate 1. The firing in step 4 is carried out in a conventionally well-known kiln for pottery or other kiln, and at this time, the temperature inside the kiln is gradually raised to prevent cracks or rupture holes ( This is to allow the photopolymer 2 to be removed by burning or evaporation without causing any problems (when the photopolymer 2 evaporates). Furthermore, since the face F14 for serving is for overlaying, the temperature inside the kiln will be raised to about 700 degrees Celsius to 850 degrees Celsius. By being fired in the kiln for the required time, the photopolymer 2 is completely removed and the fourth
As shown in the figure, only the pigment 4 for application is sintered onto the surface of the ceramic plate 1, and then the ceramic plate 1 is gradually cooled in, for example, a kiln to form a finished product 26. In this embodiment, since the photograph to be displayed on the surface of the ceramic plate 1 is monotone, all the work is completed by the above steps.

(Example 2) The above-mentioned Example 1 was an example in which a photograph is displayed on the surface of a ceramic plate 1 such as a tile whose surface is glazed and sintered. An example will be described in which a photograph is displayed on the surface of an unglazed ceramic plate 1. It should be noted that in this second embodiment, the photograph to be displayed is a monochrome one, similar to the first embodiment described above. Thus, in this Example 2,
The third step from the Ml step is carried out in substantially the same manner as in Example 1, and the only difference is that in the third step, a pigment for underpainting is used as the painting pigment 4. In the second culm of the rear cylinder 3, this ceramic plate 1 is fired in a firing kiln, and at this time, the temperature inside the kiln is 1io
This is the same as in Example 1 in that the temperature in the kiln is set at about 1300 degrees Celsius and the temperature inside the kiln is gradually raised and lowered.

In the case of this Example 2, it is possible to use the finished product 26 in its state as it is, that is, the picture for the sketch (=J pigment 4 is sintered), but the following process A protective layer 27 as shown in FIG. 5 may be further formed on the sintered layer of the dispensing pigment 4. In this case, after the fourth step is completed as described above, the fifth step is completed. As the process of
On top of the sintered layer of pigment 4 and It! j A step of applying a glaze to the surface of the porcelain plate 1 to form a protective layer is provided, and in the fourth step, the painting pigment 4 for the sketch is once sintered, and the above fifth step is carried out. 700 yen in a kiln.
It is fired at about 1.300°C to 1.300°C.

(Example 3) The above example is an example of manufacturing a monochrome photographic ceramic plate, but when a color photograph is to be displayed on the ceramic plate 1, the fifth step described above is performed. The first to fourth steps are repeated as many times as there are color plates to obtain a finished product. That is, assuming that a color photograph is composed of four color plates: indigo, red, yellow, and ink, first, for example, the first color plate is a set plate, the second color plate is red rice, and the third color is used. A photographic original plate 3 of an indigo plate as a plate and a black plate as a fourth color plate is prepared, and first, in the first color plate, the rear cylinder 2 of the first process is prepared.
In step 1, exposure is carried out using the photographic original plate 3 of the plate, and in the third step, dusting with yellow painting pigment 4 is carried out, followed by firing in the fourth step. Next, after this ceramic plate 1 has been sufficiently cooled, as a second color plate, after the first step, in the second step it is exposed to light using the red rice photograph Ug, provisional 3, and in the third step it is exposed to red color. After dusting with the pigment 4 for painting, the cylinder 4 is fired in the process. Thereafter, the above operations are repeated for the third and fourth color plates to obtain a completed color product. Note that the number of color plates is not limited to the above-mentioned four, and may be more or less than this. In addition, in accordance with the above-mentioned Example 1, when using a ceramic plate 1 such as a tile whose surface is glazed and sintered, a pigment for overpainting is used as the pigment 4 for painting, and the final A finished product is obtained when the fourth step of the color plate is completed. In addition, corresponding to Example 2, when using the unglazed ceramic plate 1, a pigment for sketching is used as the pigment 4, and as in the above-mentioned Example 2, the final color plate is used as necessary. After the third step or after the fourth step, a fifth step is carried out to form a protective layer 27 on the surface. Furthermore, as another method for producing a color photograph, the first to third steps described above may be repeated for the number of color plates, and then fired in the fourth step.

[Effects of the Invention] The present invention includes a step of laminating a photopolymer that makes the photosensitive area or non-photosensitive area sticky on the surface of a ceramic plate, and a process of laminating a negative or positive photopolymer on the ceramic plate laminated with this photopolymer. A process of setting a photographic original plate and exposing it to light, a process of dusting a powdered pigment having a desired color tone onto the first polymer which has become sticky through this exposure, and a process of placing this tui plate in a firing kiln. The process of gradually heating and firing the ceramic plate, removing the phosphor-polymer by firing or evaporation, and sintering the painting pigment onto the surface of the ceramic plate is shown in the photo by hl et al. Since a ceramic plate is used as the base material for the display, it can be displayed by inserting the base material directly into a wall or other fixed surface, allowing for long-term preservation and display. In addition to having the effect of making it possible to apply the pigment to the surface of the ceramic plate (see photo 1-0), the coloring agent itself is Not only does this eliminate the problem that occurs with photosensitive M, but the risk of subsequent oxidation is eliminated by vitrifying the picture size m\1 by sintering, and the long 1i11
(The color will not fade during its existence,
Maintaining the initial clear color tone semi-permanently (possible 9)
In addition, in the process of firing the ceramic plate, the photopolymer is removed from the surface of the ceramic plate by evaporation or (dil), so the photopolymer remains on the surface of the ceramic plate. 10: Without damaging the preservation of the exposed photograph on the photographic ceramic plate,
From this point of view as well, it has the advantage of preserving life well, and all the processes themselves are always pure and can be done by anyone without any skill, resulting in good productivity.
It has the effect of being able to be manufactured relatively inexpensively even in the case of single item or small quantity production,
Moreover, when it comes to rendering color photographs, anyone can now easily render clear and unfaded color photographs by simply repeating the above-mentioned simple steps, and it is now possible to create a variety of color photographs. It has an effect that can be put to practical use in various applications, and furthermore, it does not use the so-called printing method, which involves bringing the photographic original plate and photopolymer into close contact with each other and exposing it to ultraviolet light. This has the effect of allowing the decomposition to be captured as finely as the film allows, and making it possible to express salmon in photographs with extremely high brightness.

[Brief explanation of the drawing]

Figure 1 (a) (1)) is an enlarged perspective view of the main part of a film body used in one embodiment of the present invention, and a schematic diagram of the lamination process on a ceramic plate using a lamination device in the first process, and Figure 2 (a) and (b) are J3 in the second step of the same as above respectively.
An enlarged sectional view showing the state of the porcelain plate on which the photographic original plate is aligned and closely placed on the character printing frame device, and an enlarged sectional view of the main part showing the state of ultraviolet ray exposure. Figure 4 is an enlarged sectional view of the main part showing the state of dispersion of the pigment on the surface of the photopolymer layer in process J3. Fig. 5 is an enlarged sectional view of the main part of a photographic ceramic plate which is a completed product according to Example 2, in which 1 is a ceramic plate 1, 2 is a photopolymer, 3 is a photographic original plate, and 4 is a picture plate. ” pigment. Patent applicant Akio Ozaki

Claims (2)

[Claims] (1) A process of laminating a photopolymer that makes the photosensitive or non-photosensitive areas sticky on the surface of a ceramic plate, and setting a negative or positive photographic original plate on the ceramic plate laminated with this photopolymer. The process of exposing to light,
There is a step of dusting and adhering a powder pigment to give a desired color tone onto the photopolymer which has become sticky due to this exposure, and then the ceramic plate is gradually heated and fired in a kiln to evaporate or evaporate the photopolymer. A method for producing a photographic ceramic plate, comprising the steps of removing the pigment by incineration and sintering the pigment on the surface of the ceramic plate. (2) Prepare multiple types of painting pigments with different colors, form multiple photographic original plates corresponding to the colors of these pigments, and apply the photopolymer lamination process to the ceramic plate surface to the ceramic plate firing process. A photographic ceramic plate according to claim 1, characterized in that a color photograph is sintered and formed on the surface of a ceramic plate by repeating all the steps up to the same number of combinations of pigments for painting and photographic original plates. manufacturing method.