RU2702529C1 - Method of producing relief painting enamel - Google Patents

Abstract

FIELD: decorative art.

SUBSTANCE: invention relates to the art of enamelling, in particular to the technology of obtaining images on the enamel surface. Method for production of decorative enamel surface of hot curing on metal base includes preliminary preparation of metal surface of base, application and firing of enamel primer layer, on which pieces of enamel are laid using glue. At that, pieces of high-melting enamel with high surface tension are used, which are laid as close as possible to each other with formation of a solid high-relief image with height of up to 1 cm, and by means of single roasting melting sharp pieces of enamel and alloying them with each other, and obtained high-relief image in one step is painted with enamel paints and subjected to final annealing.

EFFECT: invention ensures production of solid high-relief figured enamel compositions with height of up to 1 cm.

1 cl, 5 dwg, 3 ex

Description

The invention relates to the field of artistic enameling, and more particularly to a technology for obtaining images on an enamel surface.

From the field of enamel art, methods are known for forming volumetric pictorial images on an enamel surface [Mathews G.L. Enamels Enameling. Enamels / G.L. Mutius / Per. from English - Omsk: Daedalus Press, 2006 .-- p. 166, 176.]. According to these methods, finely ground, opaque white enamel mixed with distilled water and a binder is applied in very thin layers using a thin brush on transparent enamel (“cameo” technique) or on a black background (“grisaille” technique). The layers are sequentially fired after application and the enamel gradually "grows". FIG. 1 - Enamel surface using the grisaille technique.

These methods are characterized by duration and laboriousness, because the image gains volume by successively layering and firing many thin layers of white enamel. In addition, these methods are difficult to obtain high relief, because very thin layers of enamel are applied in layers.

In another way, when forming a relief image, white layers of enamel are applied to each other and burned so that there is no shrinkage and spreading of enamel [Brepol E. Art enameling / Transl. with him. I.V. Kuznetsova; Ed. L.Z. Zasukhina / E. Brepol. - L.: Engineering, Leningrad, Dep., 1986. - P.87]. For this, refractory enamel with a high surface tension is used. The resulting image can be given color shades by coating a white layer with a thin layer of transparent colored enamel. The method allows to achieve a higher relief, but also requires multiple application and firing of enamel layers.

The methods described above require multiple firing to achieve the desired result. This greatly complicates and lengthens the process of obtaining a picturesque insert, making it time-consuming and energy-intensive. In addition, an increase in the number of calcinations, as a rule, increases the likelihood of defects on the enamel surface.

Also known is the method of forming a picturesque relief image of "impasto" [Mathews G.L. Enamels Enameling. Enamels / G.L. Mutius / Per. from English - Omsk: Daedalus Press, 2006 .-- p. 177], in which pictorial enamel can be layered in the form of a relief on metal, sculptural details can be modeled from enamel, giving the impression of a real volume. Acid-resistant painted enamel is mixed with distilled water, to which a little binder is added. Then the mixture is applied layer by layer with a brush to a cleaned metal surface, forming a relief image. After drying and firing, very thin layers of painted enamels can be applied to the formed image for the purpose of additional decoration. FIG. 2 - Rose made in the technique of "impasto".

This method is also laborious, because embossed details are formed in layers of moistened powder enamel. It is necessary to ensure that during the formation of the relief the working area is always wet. In addition, the method does not make it possible to obtain a sufficiently high relief due to the high complexity of layer-by-layer application of enamel.

There is a way to create a relief on an enamel surface using overlays of enamel pieces that are burned directly on a substrate or on an enamel layer [Brepol E. Art enameling / Transl. with him. I.V. Kuznetsova; Ed. L.Z. Zasukhina / E. Brepol. - L .: Engineering, Leningrad, Dep., 1986. - P.82]. Melting more or less strongly, they form plastic enamel balls or flat drops on the surface, depending on the wettability of the enamel base and the surface tension of the fused enamel. Enamel grains with tweezers are placed on an unburnt or burnt layer of soil enamel. So that they do not move, they are attached with a tragant. In conclusion, the grains are melted into the soil enamel.

This technique provides rich artistic possibilities: you can choose an ordered or arbitrary arrangement of pieces on the surface of the product, use various combinations, the effect of the relief, combine it with other techniques. FIG. 3 - Lining of enamel pieces.

For the problem to be solved, this method is the closest and adopted as a prototype.

However, this method consists in modeling simple relief compositions, ornaments from separately located enamel pieces and does not involve laying out concrete whole figurative images using enamel pieces, which, after firing, are painted with enamel paints for additional decoration.

The objective of the invention is the formation of solid highly relief figurative enamel compositions up to 1 cm high, obtained from pieces of refractory enamels subjected to a single firing, subsequent painting in one step with enamel paints and final firing.

The problem is solved as follows: by analogy with the prototype, a layer of soil enamel is applied to the prepared metal surface, on which pieces of refractory enamel are laid out with glue in accordance with the artistic design. But unlike the prototype, pieces of refractory enamel with high surface tension are laid out not separately from each other, but as close to each other as possible, forming the future whole highly relief figurative image up to 1 cm high, which after fusion as a result of a single firing will be painted in one enamel manner paints and subjected to final firing.

A method of obtaining a decorative enamel hot cure surface on a metal base includes the preliminary preparation of the metal surface of the base, applying and firing the enamel primer, on which enamel pieces are laid using glue, using pieces of high-melting enamel with high surface tension, which are laid as close as possible to each other to a friend with the formation of a solid highly relief figurative image up to 1 cm high and by sharp firing, sharp pieces of em are melted and and fused them together and the resulting high-relief figurative image in a single step paint enamel paints and subjected to a final calcination.

Thus, the claimed method differs from the prototype in that:

- pieces of refractory enamel with a high surface tension are laid as close as possible to each other, forming the future whole high-relief figurative image up to 1 cm high;

- the calcined relief obtained from enamel pieces is subsequently painted in one step using enamel paints and subjected to final firing.

These differences confirm the novelty of the proposed method.

An integral high-relief figurative image with a height of up to 1 cm without visible boundaries of the constituent elements is formed, and not a composition of separately located enamel pieces.

To form a high-relief figurative image, pieces of refractory enamel with a high surface tension are laid as close as possible to each other for their subsequent fusion, and not separately from each other.

The formed whole highly relief figurative image is painted in one step using enamel paints and subjected to final firing.

The method is implemented as follows.

On a pre-prepared metal surface, an enamel primer is applied and fired. The contours of the future high-relief figurative image are applied to the resulting primer with a pencil. In accordance with the figure, on the enamel surface as close as possible to each other lay suitable pieces of refractory enamel with high surface tension, fastened with enamel glue. The formed high-relief figurative image up to 1 cm high is subjected to a single firing to melt sharp pieces of enamel and fuse them together. In accordance with the artistic conception, a pictorial image is applied to the obtained relief base in one step using enamel paints and subjected to final firing. FIG. 4 - The sequence of obtaining relief painting on enamel.

EXAMPLES OF SPECIFIC EXECUTION

In all cases, enamels produced by Austria and the Dulevoi paint factory (DKZ) are used.

1. "Cat" (Fig. 5A). Dull white enamel (200 AV WHITE grades, _Tm = 770-820 ° C) is applied to a previously prepared surface of a convex copper sample, and fired. Pieces of white enamel (grade No. 10 DKZ, T _pl = 770-820 ° C) are laid on the resulting enamel coating using BF-6 glue in accordance with the artistic design, dried and fired. The resulting relief base is painted with black enamel paint (Schauer email T _PL = 810 ° C), burned and cooled in air. The height of the relief is 9 mm.

2. "Turtle" (Fig. 5b). On the previously prepared surface of the convex-shaped copper sample, a primer layer is applied consisting of blank blue, cyan and colorless transparent enamels (grades 5246 AV MEDIUM BLUE, T _pl = 730-770 ° C, 290 AV TURQUOISE, T _pl = 730-770 ° C , 175 AV, T _mp = 770-820 ° C), and calcined. Pieces of white enamel (grade No. 10 DKZ, T _pl = 770-820 ° C) are laid on the resulting enamel coating using BF-6 glue in accordance with the artistic design, dried and fired. The resulting relief base is painted with blue and black enamel paints (Schauer email Т _pl = 810 ° С), burned and cooled in air. The height of the relief is 6 mm.

3. "Polar bear" (Fig. 5c). On the previously prepared surface of the convex-shaped copper sample, a primer layer is applied consisting of blank blue, blue and white enamels (grades 5246 AV MEDIUM BLUE, T _pl = 730-770 ° C, 290 AV TURQUOISE, T _pl = 730-770 ° C, 200 AV WHITE, T _mp = 770-820 ° C), and calcined. Pieces of white enamel (grade No. 10 DKZ, T _pl = 770-820 ° C) are laid on the resulting enamel coating using BF-6 glue in accordance with the artistic design, dried and fired. The resulting relief base is painted with black enamel paint (Schauer email T _PL = 810 ° C), burned and cooled in air. The height of the relief is 4 mm.

Claims (1)

A method of obtaining a decorative enamel hot curing surface on a metal base, including preliminary preparation of the metal surface of the base, applying and firing the enamel primer, on which enamel pieces are laid with glue, characterized in that they use pieces of refractory enamel with high surface tension, which are laid out as much as possible close to each other with the formation of a solid high-relief image up to 1 cm high, and by a single firing, sharp pieces of em ali and fuse them together, and the obtained high-relief image is painted in one step with enamel paints and subjected to final firing.

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