DE19956817A1 - Ceramic or glass products are relief decorated by embedding decorative particles in a relief paste layer, firing, coloring and re-firing - Google Patents

Abstract

Relief decoration of ceramic or glass products, by embedding decorative particles in a relief paste layer, firing, coloring and re-firing, is new. Ceramic or glass products are relief decorated by: (a) forming a desired pattern of decorative particles embedded in a \- 0.5 mm thick relief paste layer applied to the product; (b) firing at \} 800 deg C; (b) coloring the particle-free surfaces of the relief or the relief-free faces; and (c) re-firing.

Description

This invention relates to a method for relief decoration of ceramic products Material or glass and the decorated products made thereby.

In particular, this invention relates to a method for relief decoration of products Ceramic material or glass, in which glass, also large glass, stones, per len, clay, brass, copper, silver, gold, etc. can be used.

The term "ceramic material" as used in this description and in the claims Detected, includes any material based on baked clay, all varieties of Ter racotta, various types of porcelain such as B. Sevre-, Capodimonte-, Limoges- Sasso nia porcelain etc., majolica, earthenware etc.

The term "glass material" as used in this description and in the claims includes all types of heat-resistant glass, especially Desag and ox-eye, etc.

The term "products" as used in this description and in the claims includes all possible shaped products such as plates, trays, vases, cups, frames, lamps, Brooches, earrings, tiles, feet for tables, tiles, plates for the production of Trinkets and belts, etc.

It is known as a technique for the relief decoration of ceramic products "Scandinavian" technology known. It is a decoration on porcelain with Wells or reliefs, pearls, fries, hard stones, colors such as B. with a third Fired enamels, metal paints, chandeliers, etc., and ducat gold, silver, platinum etc.

This Scandinavian technique is

• - to form depressions or reliefs on the product to be decorated,
• - Create light / dark effects by using the reliefs in the recessed part of the product Shiny gold or also with an enamel color, possibly decorated with tinting,  
• - small pieces of glass, glass beads or fries, colored Murrina glass, granules or Frame flour from colored glass, hard stones etc. and stick with glue,
• - if necessary, gild the product along the reliefs, and finally
• - burn the colored product at a temperature of at least 600 ° C.

The deep surfaces, the fine or deep, large or small, smooth, even or Very uneven depressions can be made by using the spatula on a fine rubber paste on the surface of the product to be decorated glass, mixed with fat or Kopaikabalsam, is applied in the spread paste Glass sand is pressed in to create more shallow depressions, and glass beads or pieces are pressed in to create deeper depressions, the product at 800- 850 ° C is fired, and the "Craquelé" surface is blasted off with a spatula that has formed wherever the melting paste with the sand and the pearls was applied.

This technique of decorating is used with some success, but it has also disadvantages. With this technique, stones or pieces of glass that are not too large can be used be used as they would flake off when burning. They also bump into the outside slightly glued on the decorations of the raised areas and lose your original gloss, and they can detach from your surface, especially if they are very large - and leave open holes. Another disadvantage is that the Glue used adhesive is very often visible and the external appearance of the Decor is detrimental.

It is an object of this invention to eliminate the disadvantages mentioned above.

In particular, it is an object of this invention to provide a method of relief decorating in which the decor is part of these reliefs themselves and therefore does not break or become to be able to solve.

In general, the above objects can be achieved with this invention by the Decor according to the desired pattern in the relief that has a thickness of at least 5 mm  has to be inserted and the decorated object is fired at a first time Temperature of not more than 800 ° C is subjected.

The subject of this invention is therefore a method for the relief decoration of objects made of ceramic material or glass, which consists of the following, successive procedural steps:

• - A relief paste is prepared which is liquid enough to have the shape of an impression To keep pearl of any size invariable,
• - This relief paste is at least 0.5 mm thick on the surface to be decorated Layer spread,
• - The decorative particles are in this relief paste layer according to the desired pattern added
• - The decorated object thus obtained is a first firing at a temperature subjected to no more than approx. 800 ° C,
• - the surface of the relief, which is not covered with decorative particles, or the surfaces without Relief are colored, and
• - The decorated and colored object is subjected to a second burning process.

Depending on the desired final appearance, the decorated counter can be achieved stand can be finished with ducat gold, silver, platinum or other valuable metals.

The second burning process can take place at any temperature sufficient to achieve the Stabilize color; In general, temperatures of approx. 600 to 1000 ° C can be used become.

Any relief paste can be used in the method according to the invention, provided that it is diluted so that it has the required consistency. In particular this relief paste can be made by using an organic natural resin for relief (Medium) mixed with a vitrifiable, leaded ceramic product (white relief paste) becomes. The thickness of the paste layer can be between 0.5 mm and 5 cm.

Beads, pieces of glass or frits, even large ones, granules or flour can be used as decorative particles of colored glass, colored Murrina glass, natural stones, Nile or river stones, objects  en or sculptures made of clay, brass, copper and others, left to the imagination of the artist serve its materials.

The method of this invention is particularly suitable for glass decorations since the glass is in use the burning process melts and slips on the surface underneath, whereby un Predicted and original effects arise that cannot be achieved with a simple direct decor can be reached. This effect can be emphasized by using different kolo as decor rated and non-colored glasses such. B. Murano, cathedral glass, opal glass, cover glass and combinations of these glasses are used, each with different properties and / or colors and thus results and combinations with original effects arise, which are partly due to how they are in the molten state combine with each other and merge.

During the first and second firing, the paste changes volume and changes hence that of the glass decorations, the unusual, changing and random shapes and Can take dimensions.

The decor can cover the entire surface of the product to be decorated or one Spread part of this and can be on one or all sides or faces of the product getting produced. The decor can also be applied in any position: vertical, horizontal and oblique.

Coloring the surface that is not covered with decorative particles or the surface without Relief can be made with shiny gold, with colors through a third, possibly buffered firing device gang, with metal paints from metal-based powders such as gold, copper, zinc; Silver, tin, Aluminum, bronze, etc., mixed with a fatty medium for a better one To ensure penetration into the paste and / or with chandelier in all colors and shades respectively.

The chandelier colors can range from green and pink pastel tones to move dark colors like black or smoky gray. With chandelier colors too marbled, spotted, bronze or pastel effects.  

A preferred method is to have the "medium" on the surface that is colored distribute it with a brush or cotton ball and then open up the metal powder dust. Individual parts can be removed using sgraffiti technology.

Many alternatives and variations can be used in the practice of this invention that move within the framework of the thought and the teaching and which the specialist derive from the description given above. The invention therefore covers all alternatives and variants within the spirit and protected scope of the following claims from.

Claims (8)

1. A process for the relief decoration of products made of ceramic material or glass, which consists of the following, successive process steps:

• a relief paste is prepared which is liquid enough not to keep the shape of an impression of a pearl of any size invariably,
• - this relief paste is spread on the surface to be decorated in a layer at least 0.5 mm thick,
• the decorative particles are inserted into this relief paste layer according to the desired pattern,
• the decorated object obtained in this way is subjected to a first firing process at a temperature of not more than approx. 800 ° C.,
• - the surface of the relief, which is not covered with decorative particles, or the surfaces without relief are colored, and
• - The decorated and colored object is subjected to a second burning process.

2. The method of claim 1, wherein the decorated article after the second firing depending on the desired final appearance with ducat gold, silver, platinum or other valuable metals. 3. The method according to claim 1 or 2, wherein the relief paste is produced by an organi natural resin for relief (medium) with a glazable, lead-containing ceramic product (white relief paste) is mixed. 4. The method according to any one of the preceding claims, wherein the second burning process in a Temperature of 600 to 1000 ° C takes place. 5. The method according to any one of the preceding claims, wherein the thickness of the relief paste layer is between 0.5 mm and 5 cm. 6. The method according to any one of the preceding claims, wherein the decorative particles beads, glass chips or fritters, including large ones, granules or flour of colored glass, colored Mur  rina glass, natural stones, Nile or river stones, objects or sculptures made of clay, brass, Copper and other materials left to the imagination of the artist. 7. The method according to claim 6, wherein the decorative particles colored and non-colored glasses Murano glass, cathedral glass, opal glass, cover glass and combinations of these glasses can be nen. 8. The method according to any one of the preceding claims, wherein the coloring of the surface, the is not covered with decorative particles, or the surfaces without relief with shiny gold, with colors through a third, possibly buffered burning process, with metal colors and / or with Lü in all colors and tones.