RU2700897C1 - Method of obtaining images on an enamel surface with a depth effect - Google Patents

Abstract

FIELD: decorative art.

SUBSTANCE: invention relates to the field of artistic enameling of hot curing, more specifically to the technology of obtaining images on the enamel surface, and can find application in the field of making jewelry-art items and souvenirs. Method for production of decorative enamel surface of hot curing with effect of depth on deeper metal base includes preliminary preparation of surface of metal base, application and firing of enamel primer layer and creation of image closed in the next layer of transparent enamel. At that, metal base is used, having an arbitrary shape of deepening with depth h, and image is created with the help of enamel paints, wherein the effect of depth is obtained by layer-by-layer formation of elements of the created image, which are located at different levels of said recess by alternately applying and burning layers of painting with enamel paints and transparent colorless enamel.

EFFECT: invention enables to obtain images with a depth effect on the surface of hot curing enamels.

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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 artistic enameling, a method of painting by enamel is known [Flerov A.V. Technique of artistic enamel, stamping and forging: textbook. allowance. - M .: Higher school, 1986. - S. 50-53]. According to this method, counter enamel is first applied to the inner surface of the metal base, then the plate is turned over with enamel down and primed enamel is applied to the front side. First, they write on it with more refractory paints, and after firing, fusible paints are used.

According to this method, multiple prescriptions are required to create a composition, and after each prescription, another firing is required. Visually, the effect of volume is achieved only with the help of artistic means: expressiveness, black and white nuances, perspectives, etc.

In another method, the enamel is first deposited on a metal substrate and a pattern is applied. Then the copper plate is covered with a layer of fondon, through which after firing the applied pattern is clearly visible. Next, the surface is covered with a thin layer of tragant, and a pictorial image is applied to this layer with transparent and dull enamels. Colored planes do not have to fit snugly together. Colors can be of varying intensity depending on the thickness of the enamel layer, which can be applied in the form of stains or stains. [Brepol E. Art enameling / Transl. with him. I.V. Kuznetsova; Ed. L.Z. Zasukhina / E. Brepol. - L .: Engineering, Leningrad, Dep., 1986. - S. 84-85].

This method allows you to get an interesting effect with limited expressive means, but does not allow you to get the effect of volume.

Also known is a method of creating enamel painting [Brepol E. Art enameling / Transl. with him. I.V. Kuznetsova; Ed. L.Z. Zasukhina / E. Brepol. - L .: Engineering, Leningrad, Dep., 1986. - S. 87]. According to this method, the motifs depicted are placed on a dark background, and the relief is applied with white enamel. The substrate coated with counter-enamel (most often copper) is first completely covered with black, dark blue or dark brown enamel, then an image is applied to this base with white enamel and fired. When applying a thin layer of white enamel, a dark background shines through it, in this case gray tones predominate, and with a sufficiently thick layer a pure white color is formed.

The picture is “modeled” as follows: start from the dark background, then go to the shadow parts of the picture and then to the brightest places in the image. In this case, the effect of volume is achieved by varying the thickness of the layer, which allows to obtain a wide range of shades of white and black.

These methods are usually performed on a convex substrate and do not allow the creation of images with a volumetric effect.

There is a method of obtaining images with a volumetric effect, used in the manufacture of jewelry with decorative polymer coatings. The method includes the following main steps: preparation of the working surface, applying a primer layer, applying an image, applying a finish layer. As an image, an artist’s drawing, a photograph, a film with a picture, various objects (flowers, twigs, random objects, various fillers, etc.) can be used. FIG. 1 - Jewelry with decorative polymer coatings with volume effect.

The resulting image is covered with a lens on top, giving the coating a volumetric effect. The role of the lens is performed by the final polymer coating (usually epoxy or polyurethane). For the problem to be solved, this method is the closest and adopted as a prototype.

However, this method relates to the field of cold enameling and cannot be used in the manufacture of products with hot cured enamels.

The objective of the invention is to obtain images with the effect of depth on the surface of enamels of hot curing.

The problem is solved as follows: by analogy with the prototype, a layer of soil enamel is laid on the prepared surface, onto which an image is then applied, which is closed in a subsequent layer of transparent enamel. But unlike the prototype, hot enamel is applied layer-by-layer to an in-depth metal base, and the effect of image depth is achieved by applying image elements at various levels, each of which is separated from the others by a layer of transparent colorless enamel.

A method of obtaining a decorative hot-cured enamel surface with a depth effect on a deepened metal base includes preliminary preparation of the surface of the metal base, application and firing of the ground enamel layer and creating an image covered in a subsequent layer of transparent enamel, using a metal base having an arbitrary shape of a deepening depth h , and the image is created using enamel paints, while the depth effect is obtained by layer-by-layer formation of elements created and siderations which are arranged on different levels of said recess by alternately applying layers of painting and baking enamel paints and clear colorless enamel.

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

- for coating use enamel hot curing;

- as a working surface using a recessed metal base with an arbitrary shape of the recess and the size of the recess h:

h = (k ₁ + k ₂ + ... + k _i ),

where k _i are the thicknesses of successively laid enamel layers;

- the depth effect is achieved by applying image elements at various levels and separating them from each other with layers of transparent enamel.

These differences confirm the novelty of the proposed method.

Hot curing enamels are used to obtain the depth effect, rather than cold cured polymer coatings.

The working surface is made of metal and has an arbitrary recessed shape with a recess value h. FIG. 2 - Recessed base with a value of the recess h.

To enhance the depth effect, image elements are placed at different levels and separated from each other by a layer of transparent colorless enamel.

The method is implemented as follows (Fig. 3).

On a pre-prepared deepened metal surface with an arbitrary shape of the recess and the size of the recess h, a ground enamel layer is applied (Fig. 3a) and burned. On the obtained enamel coating (Fig. 3b), an image is applied using enamel paints in accordance with the artistic design (Fig. 3c) and burned. The resulting pattern is covered with a layer of transparent enamel (Fig. 3d) and fired. Additional enamel elements of the created image are applied to the transparent enamel layer (Fig. 3d) and fired. Alternating layers of painting and transparent enamel can be carried out several times. Each subsequent firing reduces the clarity of the images below, which creates an additional depth effect (Fig. 3e)

EXAMPLES OF SPECIFIC EXECUTION

In all cases, enamels made in Austria were used.

1. On a pre-prepared deepened surface of a copper sample of a trapezoidal cross-sectional shape (Fig. 4a), a base diameter of 17 mm, a top diameter of 20 mm, a thickness of 0.3 mm and a recess value h of 3.2 mm (1), apply an opaque white enamel (grade 200 AV WHITE, T _pl = 770-820 ° C) 1 mm thick (2) and fired. The image is coated with dark blue enamel paint (Schauer email T _PL = 810 ° C) 0.1 mm thick (4), fired and covered with a layer of transparent colorless enamel (175 AV grade, T _PL = 770-820 ° C) 2 mm thick (3). An image of black enamel paint (Schauer email _Tm = 810 ° C) with a thickness of 0.1 mm (4) is applied to the burnt layer of transparent enamel, burned and cooled in air.

2. An opaque white enamel (200 AV WHITE, T grade is applied to a previously prepared recessed surface of a copper sample of a rectangular cross-sectional shape (Fig. 4b) with a diameter of 16 mm, a thickness of 0.35 mm, and a recess value h of 3 mm (1). _pl = 770-820 ° C) 1 mm thick (2) and fired. The resulting coating is applied with an image of black, yellow and blue enamel paints (Schauer email T _PL = 810 ° C) with a thickness of 0.1 mm (4), fired and covered with a layer of transparent colorless enamel (grade 175 AV, T _PL = 770-820 ° C) 1.8 mm thick (3). An image of black enamel paint (Schauer email _Tm = 810 ° C) with a thickness of 0.1 mm (4) is applied to the burnt layer of transparent enamel, burned and cooled in air.

3. Opaque white enamel (200 AV WHITE grade, T _pl , is applied to a previously prepared recessed surface of a copper sample of a semicircular shape (Fig. 4c) with a diameter of 17 mm, a thickness of 0.4 mm, and a recess h of 6.3 mm. = 770-820 ° C) 1 mm thick (1) and fired. The resulting coating is coated with blue and black enamel paints (Schauer email T _mp = 810 ° C) 0.1 mm thick (4), fired and coated with a layer of transparent colorless enamel (175 AV grade, T _mp = 770-820 ° C) 3 mm thick (3). An image of blue and black enamel paints (Schauer email _Tm = 810 ° C) with a thickness of 0.1 mm (4) is applied to the burnt layer of transparent enamel, burned. Then the whole image is covered with a layer of transparent colorless enamel (175 AV grades, T _PL = 770-820 ° C) 2 mm thick (3) and fired. At the end, they are painted with blue and black enamel paints (Schauer email Т _pl = 810 ° С) with a thickness of 0.1 mm (4), burned and cooled in air.

Claims (1)

A method of obtaining a decorative hot-cured enamel surface with a depth effect on a deepened metal base, comprising pre-preparing the surface of the metal base, applying and firing the enamel soil layer and creating an image covered in a subsequent layer of transparent enamel, characterized in that they use a metal base having an arbitrary shape recesses, and the image is created using enamel paints, while the depth effect is obtained by layer-by-layer formation of elements, we create og images that are located at different levels of the said recess by alternately applying and firing the layers of painting with enamel paints and transparent colorless enamel.

Images