JPS5832087A - Gold dressing method - 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] The present invention relates to a strong total decoration method for applying glaze surfaces to ceramics.

Conventionally, gold decorations have been preferred for hard porcelain, especially high-quality ceramic products such as bone china, which give a luxurious and high-class feel. Decorative parts, such as plates and cups of Western tableware, have a width of 2 to 3 mm called rim gold wire on their outer rims.
fl line decoration and overglaze firing temperature (700-J'
! ; O'C, ).

The entire decorative surface obtained by this method usually has a smooth, beautiful and shiny golden color, but the residual liquid used for this process is mainly composed of all organic compounds, including metal-organic compounds such as bismanu, chromium, rhodium, etc. It is a liquid preparation made of glaze, which is applied to the glazed surface with a brush or the like and fired.The entire decorative surface is generally a thin film of 3 μm or less. Therefore, if the product is handled carefully by wiping the top of the gold film with a soft cloth or cloth, and the product is not used often, there is little risk of the entire decorative surface peeling off, but if the product is used at a high-end restaurant or hotel When these gold ornaments began to be used as commercial tableware, the green gold wire on plates, cups, etc. wore out and peeled off, exposing the underlying white glaze surface, resulting in an unsightly appearance due to repeated use. There are defects in appearance. In particular, bone china ceramics are resistant to damage due to handling and fading in the design areas other than the gold decorations, and can withstand frequent use over long periods of time for commercial use.However, in the case of products with gold decorations, the gold color may peel off prematurely. , TA'-' JAThere is a problem in which the period of use is shortened just for superficial reasons.

Therefore, methods for producing wear-resistant gold films have been proposed. For example, for Tokko Sho≠4-730.2ψ, a base layer is created on the glaze surface with water-based mud paint, an oily mixture is applied on top of this, the excess base layer is removed with a water brush, etc. We use a method of firing in a kiln at the painting temperature. The gold film created by this method consists of a gold film 3 and a base paint λ, as shown in Figure 1.
As the overglaze is fired in such a way that the paint bulges up from the glaze surface, the adhesion of the gold film is improved. The matte skin loses its luster due to the use of base paint λ.

For example, in Tokkosho No. IO-1121, a material containing chromium and rhodium as the three components of the gold film and a small amount of borosilicate complex type Fratukunu was applied to the glaze surface and after drying, Galanu 1) 7
A reinforced gold film is obtained by coating a synthetic resin composition containing a coating material on top of the coating, and then firing the overglaze.
This method requires the preparation of a special mixing solution and coating formulation, and is difficult to implement easily.In addition, the gold film produced by this method requires the preparation of a special mixing solution and coating formulation. Because it is coated with a quality coating material,
The original golden color and luster are gone.

The present invention solves the difficulties seen in the "-force distribution method", and allows the use of a commercially available mixed solution, which can be used in the usual manner.
The entire decorative part obtained by firing the two sets has the same smoothness as the first one, and the color tone and luster are as beautiful as those made by the conventional method, and moreover, it has the same number of repeated uses as commercial tableware. The purpose of the present invention is to provide a complete decoration method that is durable even when there are many decorations, but does not cause loss of beauty.

In other words, the present invention, when applying a complete decoration to the surface of ceramics using a liquid mixture, uses a paint for ceramics that develops a color similar to the fired gold color of the mixture on the part where the complete decoration is to be applied. The gist is a total decoration method characterized by coating the inglaze paint layer in advance, then firing the inglaze, applying the mixture so as to corrugate the upper surface of the inglaze paint layer, and firing the overglaze paint layer.

The characteristics of the method of the present invention are as follows: An inglaze fired paint layer is formed on the glaze surface of the part where the entire decoration is to be applied, and then the entire decoration is completed by overlaying and firing an overglaze using a conventional mixture. It is in the point of giving.

FIG. 3 schematically shows the cross section of the entire decorative part applied by the method of the present invention, where j is the ceramic fabric, l is the oil layer, l is the paint layer fired with the above-mentioned inglaze, and 3 is the inglaze fired paint layer. The entire decorative part is overglazed and fired.

In the method of the present invention, in order to form the inglaze paint layer that serves as the base for all the decorative parts 3, a ceramic paint that can be inglazed and exhibits a color similar to the gold color to be overpainted upon firing is used. use In this case, the paint is not limited to a single color, but it is preferable to mix several colors to approximate the fired gold color as much as possible.

The area to be applied with inglaze paint should be the same as, or slightly smaller than, the entire area to be decorated. The reason for this is to prevent the underlying inglaze base surface λ from protruding from the metal cap surface 3 covering the upper surface later, thereby impairing the decorative effect.

For example, in the case of bone china, inglaze firing is performed at around 7000℃ after the paint layer 0, so that the paint layer λ penetrates into the first layer L and the glaze surface and the inglaze surface are approximately the same to flat. . This inglaze fired paint layer can also be formed on general ceramics other than bone china.

In this case, the incrase firing temperature varies depending on the softening temperature of the yuzu fruit, and a firing temperature of 300°C is usually appropriate.

For all decorations, use leftover liquid from I-sales, and overglaze and fire on top of the above-mentioned inglaze surface in the same manner as for all decorations on the glaze surface using a conventional method. That is, gold paint is applied with a brush or the like in an area equal to or slightly larger than the inglaze base surface, and the gold film 3 is baked at a normal overpainting firing temperature of 700-50°C.

In this case, since the inglaze paint surface is smooth and shiny like the glaze surface, applying gold wire, for example, is as easy as applying directly onto the glaze surface using the conventional method, and the gold film is also similar to the conventional method.・
It has the same gloss, color tone, and smoothness as those baked directly onto the glaze surface, and it also has extremely strong adhesion to the inglaze paint layer.

Next, the present invention will be further explained with reference to Examples.

A fringe wire decoration was applied to the outer peripheral edge of a bone china flll by the method of the present invention.

100 parts of a gold-brown paint as a pottery paint for inglaze that has a similar color to the fired residual liquid, 1 part of Trio L/2JR as a solvent, and 1 part of white varnish S as a thickener.
Part O was mixed into a paste and a gold wire of 2 to 3 ydl was applied with a brush, and after drying, inglaze firing was performed at about 100°C. As a result, the paint layer penetrates into the bone china glaze surface and
It exhibited a smooth glossy surface similar to that of a flat glazed surface.

The alloy amount is 27% on top of this inglazed golden brown paint layer.
% commercially available leftover liquid was applied with a brush, a gold line decoration was applied, and a gold film was formed by firing at about f00°C, the normal overglaze temperature. The gold film exhibited the same luster and color tone as the conventional case of applying directly onto the 11th surface, and was smooth.

The gold film of the above example was subjected to a friction test using #G00 zircon sandpaper. The gold film made by the conventional method using the same leftover liquid as above exposed the base glaze surface white after about 23 rubs, but the gold film of the illegal example mentioned above only showed a very small amount of base glaze after about 50 rubs. It exhibited excellent abrasion resistance to the extent that the inglaze paint layer was exposed, and since the color of this inglaze paint layer was similar to that of the gold film, it was almost indistinguishable. Acid resistance and surface 1 alkalinity tests have yet to be carried out, and the product produced using the method of the present invention shows more than twice the durability compared to a conventional gold film using the same leftover liquid.

As mentioned above, the entire decoration made by the method of the present invention not only exhibits superior abrasion resistance, acid resistance, and alkali resistance compared to the conventional gold film, but also
Even if the gold film wears out, it does not immediately expose the white color like conventional products, and even if the underlying color of the gold and similar colors is exposed, it is not noticeable.As a result of actual use tests in restaurants, Despite repeated use, the product did not become unsightly in appearance, and was proven to withstand long-term use and be of practical benefit.

[Brief explanation of the drawing]

FIGS. 1 and 2 are schematic diagrams illustrating a conventional gold film reinforced decoration and show a cross section, and FIG. 3 is a schematic diagram 11) illustrating a gold film reinforced decoration according to the method of the present invention and a cross section. /: Sleeve 2: Inglaze paint layer -2 = Base paint layer 3: Gold film G: Glassy coating j:
Fabric Applicant Narumi Seito Co., Ltd. (91-4'lJ Figure 1 Figure 2 Figure 3 Voluntary procedure amendment October 9, 1981 1, Indication of case 1982 Patent Application No. 1.29886 2 , Title of Invention Full Decoration Law 3 Relationship with the case of the person making the amendment Patent applicant address 3 Denjiyama, Narumi-cho, Midori-ku, Nagoya Name Narumi Seito Co., Ltd. Representative Ishihara Example 4 Agent 6 Subject of amendment Contents of amendments to Column 7 of ``1 Detailed Description of the Invention'' and ``Brief Explanation of Drawings'' in the Specification (1) ``Hard porcelain, especially Bon China'' in line 14 of page 1 of the description has been changed to ``Hard porcelain.'' (2) On page 2 of the specification, lines 2-3 [Smooth and beautiful...], the line 17 of the same line has been changed to ``Damaged and beautiful...''. (3) Page 5, line 5, 1 of the specification - Made of porcelain fabric.''
A certain phrase was changed to ``...made of porcelain...''. (4) Page 7, line 7 of the specification [・25 copies of triol...” has been replaced with “25 copies of doolol...”, and line 9 of the specification “with gold wire of...” has been replaced with 1. ``With line decoration'', replace the line 15 with ``at about 800°C'' with ``at about 750°
In C, change each to ``-・''. (5) On page 9 of the specification, line 4, "5: Fabric" has been changed to "5° fabric." ”2

Claims (1)

[Claims] (1) When applying gold decoration to the surface of ceramics using leftover liquid,
Ceramic paint that develops a color similar to the fired gold color of the leftover liquid is applied in advance to the '@ side of the part to be decorated with gold, and then inglaze firing is performed to cover the upper surface of the inglaze paint layer. A gold decoration method characterized by applying residual liquid and firing the overglaze.