CS273948B1 - Method of glass and glazed articles decorating - Google Patents

Abstract

Under the action of water the machined circumferential surface of a disc is pressed onto the surface of the glass or glazed decorated item, the disc being on a base of aluminium and/or its alloy, with a frequency of rotation of 100 to 2,000 min<-1>, under the action of water, which cools the decorating disc and washes the products of decorating from the surface of the item. On dark coloured items an effective silver decoration is achieved, while on light coloured items a dark decoration is achieved. The metal coating of the decoration is constant in terms of colour and resistant against abrasion.

Description

The present invention relates to a method for decorating glass and glazed objects, in particular brightly colored. Decoration is done by a metallic means that moves,

Japanese Patent Application No. 60-086.056 describes glass decoration and the glass surface decorated with this decoration technique resembles glass covered with gold or silver foil. The paste, prepared from fine diamond particles up to 0.5 µm in size mixed with oil or grease, is applied with a metal brush of brass or stainless steel wire to i

glass surface. The brush vibrates vertically at 30 to 60 min ”. The metal film formed on the surface of the glass has the appearance of a coating deposited by vacuum vapor deposition or electroplating.

It is a rarely described and original refinishing decoration technique, which is obviously material and time consuming.

These drawbacks are substantially reduced by the method of decorating glass and glazed objects, in particular strongly colored, according to the invention, which is characterized in that the decor is carried out with a metal disc based on aluminum and / or its alloys and the machined peripheral surface of the disc at 100 up to 2000 min ”· * · presses onto the surface of the decorated item under the influence of water.

In this manner of decoration, any decor is obtained on a brightly colored glass or glazed object, either a shiny silver appearance on a dark colored object or an almost black appearance on a light colored object. The metallic decor coating obtained is very distinctive and abrasion resistant. Since glass colors are not used to achieve the decor, there is no need to stabilize the colors in the kilns.

The decoration method according to the invention does not require a complicated device, for example a conventional engraving tool is sufficient for fixing the disc. The disc material is commercially available and its active peripheral surface is easy to machine. Different rotational speeds can be selected for the disc in relation to the disc diameter. For decorated objects of larger sizes or less accessible places, a larger size disc is chosen, usually at a lower frequency of rotation. The decoration is carried out with the action of water, which cools the rotating disc and washes the products resulting from the decoration from the surface of the object to be decorated.

The effects of the invention are further illustrated by the two exemplary embodiments of the invention set forth below.

Example 1

The glass object is decorated, for example, a black glass vase with a height of 25 cm and a maximum diameter of 12 cm. A 5 cm diameter rotating disc is pressed onto the glass surface with water. For example, the disc is mounted on an engraving tool shaft and has an average rotation speed of 400 min. The disc is made of an alloy containing 90% by weight of aluminum, 3.5 to 5% by weight of copper, 0.5% by weight of magnesium, and 0.5 to 0.8% by weight of manganese.

Depending on the desired type of decor, the active working surface of the disc is selected. For a thicker decor line, a rounded peripheral surface is selected, for a thin decor line a wedge-shaped peripheral surface. For fuller decoration, square, chisel or even peripheral surface of the disc is chosen.

In this way, ae achieves a silvery color on the black base of the vase.

Example 2

Decorate an object, such as a cup, provided with a white glaze.

The cup has a maximum diameter of, for example, 7 cm and a height of 5 cm. A 2 cm diameter disc made of aluminum alloy containing aluminum over 90% by weight, additionally containing 1.2% by weight magnesium and 1% by weight manganese, is used for decoration.

The decorating wheel rotates with an average rotation speed of 800 min \ Decorating

CS 273948 B1 2 is carried out similarly to the previous exemplary embodiment.

The resulting aesthetic effect of this decoration is reflected in the dark color of the decor on the white background of the cup.

Claims (1)

SUBJECT OF THE INVENTION Method for decorating glass and glazed objects, in particular strongly colored, with a metallic means which is moving, characterized in that the metallic means is a disc based on aluminum and / or its alloys, the machined peripheral surface of which has a rotational speed of 100 to 2000 rpm ^. is pressed against the surface of the object under the influence of water.