RU2350478C2 - Method of drawing application on glossy surface - Google Patents

Abstract

FIELD: printing production.

SUBSTANCE: method includes placement of template with required drawing on surface, abrasion to obtain definite depth. Drawing is formed on the surface by abrasive processing of parts not covered by template in several passages by materials with different abrasive grit. In some passages aqueous white spirit solution is used with further surface processing by polishing pastes with pH 7-8.5 at 25°C and viscosity of 14.000-60.000 cP.

EFFECT: glossy image effect on matte surface or matte image effect on glossy surface, homogeneous silky image structure with distinct contours.

Description

The invention relates to the field of applying drawings on glossy surfaces, namely on surfaces with paint and varnish coatings, glass, hardboard, plastics, acrylic and other polymers, and can be used for decorating furniture, interior items, cars.

A known method of manufacturing furniture parts with imitation of metal inlay on wood, which consists in the formation of a base on a wooden substrate, applying a layer of metal on it through a stencil to obtain an image and then coating it with a transparent protective layer. As a stencil, an elastic stencil is used, and the deposition of a metal layer on the base is carried out by evaporation of the metal in a vacuum medium (see RF patent No. 2041835, IPC B44C 5/04).

However, this method is complex and expensive.

A known method of sandblasting parts, in particular glass, mirrors in the manufacture of furniture, as well as other products from glass or wood, used to decorate the interiors of housing. The inventive impose a mask with the corresponding pattern on the surface of the workpiece, carry out sandblasting in a narrow range of the mask and remove the mask after processing the product, and the mask is applied a layer of rubber or plastic from the side on which the sand stream is directed. New in the method is that a second layer of rubber or plastic is applied to the mask from the side of the workpiece and applied to an electromagnetic plate with a layer of rubber or plastic rigidly fixed on it, and for the time of sandblasting the product include an electromagnet (No. 94033247, IPC A61K 35 / 32).

The disadvantage is its complexity, in addition, the method is not applicable for glossy paint surfaces, because is destructive.

Closest to the proposed solution is a method of applying a decorative-artistic image on mirrors, according to which a protective coating is applied to the glass surface, then part of the coating is removed in accordance with the figure. The areas of glass freed from the coating are subjected to abrasive until a predetermined depth is obtained. Then, other surfaces of the glass are freed from the coating and exposed to abrasive until a depth different from the first is obtained. A counter-relief image is obtained. After that, a metal layer is sprayed (No. 2049747, IPC С03С 17/06).

The disadvantage is the limited scope, as well as the complexity of the technology due to the additional spraying operation, as well as the inability to obtain the effect of a glossy image on a matte surface or a matte image on a glossy surface.

The objective of this solution is to create a method for decorating glossy surfaces while simplifying the technology.

The technical result is to obtain the effect of a glossy image on a matte surface or a matte image on a glossy surface and providing a uniform, silky, with clear contours of the structure of the resulting image.

The problem is solved in that in the method of applying a pattern to a glossy surface, including placing on the surface of the stencil with the appropriate pattern, the effect of abrasive to obtain a given depth, according to the solution, the pattern on the surface is formed by treating the surface of the surface with several grades of P400 grit with an uncovered stencil with abrasive -P500, and then with a grain size of P1000-P1500, while for some of the passages an aqueous solution of white spirit is used, after which the surface is further processed polishing pastes with pH at 25 ° С = 7-8.5 and viscosity 14.000-60.000 cP.

The drawing can be of any shape and is applied to part of the surface or the entire surface, depending on the desired result.

The method is as follows.

The first step of the method is to create a stencil with a given image. In the design program, a mock-up of a given image is created, which is transmitted in machine code to specialized equipment with numerical control. It produces stencils with specified parameters. As the basis for the stencil, a film is applied with adhesive on one side, for example Oracle.

To obtain a matte image on a glossy surface, a stencil is glued onto it, after which the surface of the workpiece is subjected to abrasive treatment inside the stencil contours in several passes.

To obtain the effect of a glossy image on a matte surface, a stencil is applied to the glossy surface in the form of an image contour. Surface treatment is performed around the outer borders of the screen over the entire surface of the coating, leaving the glossy coating intact.

The use of grinding materials with grit P400-P500.

In this grinding mode, the top layer of the paintwork is removed without deep destruction, providing clear contours of the pattern on the surface.

The use of abrasive materials with grit P1000-P1500 allows you to smooth out the risks and scratches after using abrasive materials with grit P400-P500.

In the process of surface treatment with abrasive materials, an aqueous solution of white spirit is used in a ratio of five parts of water to one part of white spirit. The solution is wetted by the abrasive itself and the paintwork. The solution is used for thermal cooling of the surface, in order to exclude changes in the properties of the coating from mechanical heating. Water increases glide (reduces surface resistance), softens the abrasive.

To obtain a better result (final) when smoothing the images, scratches, polishing pastes are used. Polishing paste is a thin abrasive material used for polishing coatings. Polishing pastes are a white viscous liquid with a pH at 25 ° C = 7-8.5, viscosity 14.000-60.000 cP. It has been experimentally found that polishing pastes with the above characteristics make it possible to eliminate flaws on glossy surfaces with high efficiency after using abrasive materials with P1000-P1500 grit.

If the grit parameters of the abrasive materials detected experimentally are not observed, namely when the grit is less than P400, the glossy surface is destroyed. The use of abrasive materials with a grain size of more than P500 and less than P1000 makes it impossible to obtain a clear contour of the image on a stencil, several times increases the time for surface treatment, i.e. inefficient for production.

The advantage of this method of drawing a picture on the surface is to obtain a given technical result, simplify the technology of applying the image in comparison with other methods, use a small amount of consumables, high quality indicators, i.e. efficiency for production. This method of drawing a picture improves decorative properties, allows you to give individuality to products for which this technology is applied, create interesting designer industrial designs.

Claims (1)

A method of applying a pattern to a glossy surface, including placing on the surface of the stencil with the appropriate pattern, abrasive exposure to a predetermined depth, characterized in that the surface pattern is formed by abrasive processing of the uncovered stencil part of the surface in several passes with materials having a grain size of P400-P500, and then with grit P1000-P1500, while for some of the passages an aqueous solution of white spirit is used, after which the surface is additionally treated with polishing pastes with pH at 2 5 ° C 7-8.5 and viscosity 14000-60000 cP.