SU710838A1 - Method of relief decorating of articles made of polystyrene-base thermoplastic materials - Google Patents

Description

one

The invention relates to methods for producing a decorative effect on non-metallic surfaces and can be used in the manufacture of decorative products from polystyrene and expanded polystyrene.

The known method of relief decorating products from thermoplastics based on polystyrene consists in that a conductive layer is applied to the surface of the product, then a metal layer is applied by electroplating, after which the resulting relief is polished with PI.

However, when decorating a product according to this method, its surface is monotonous and the adhesion of the metal layer to the surface of the product is low.

The aim of the invention is to enhance the decorative effect due to the formation of crack-like patterns, as well as to improve the adhesion of the metal layer to the surface.

This is achieved due to the fact that a composition containing, in wt.%, Is used as a conductive layer:

A mixture of xylene with butyl acetate (1: 2) .62-70 Carbonyl nickel 30-38, and after polishing, the surface is further treated with a colored solvent of polystyrene.

The conductive layer containing xylene, butyl acetate and nickel carbonyl, due to shrinkage, cracks, creating a crack-like pattern that remains after surface treatment and in the electroplating bath. The effect of dyed polystyrene solvent, xylene nagfimer, on the polymer surface, appearing in cracks, creates a background that emphasizes metallic

s sites.

A cracking conductive layer of the composition, which is shown in Table 1, is applied to the products from polystyrene or polystyrene foam. one.

After drying and cracking, the product is metallized by electroplating in the usual electrolyte state of the following composition, g / l: Sulfuric acid copper 120 Sulfuric acid 10 Ethyl alcohol 10 The holding time in the electroplating bath is 40 minutes at a current density of 0.7 a / dm. Then the product is polished by an electrolytic method to a high degree of gloss and treated with a colored solvent of polystyrene composition given in table. 2. For fat-soluble dyes, for example, such dyes as Example C, a mixture of xylene with acetate, and 170 266 362 Example C xylene (TU6-09196 298.9 399.88) Samples that have been processed for example, electrolysis, min

40

40 40 120

2 3 Prototype

Not otslaivaet

Vs

No no

Peeled off

- at the base of individual monocrystals (20-30%) there is a fat soluble red dye Ж-СТУ 54-86-62, a fat soluble yellow dye Ж-ТУ MXJ1 4098-53., etc. 5 The surface of the product, decorated by the proposed method is a metal relief on a colored background, the adhesion of the metal layer, determined by bending on the scale of the NIILKa, is uniform over the entire surface. The test results are shown in Table. 3. T and l and c and 1 remaining, wt.%. butyl-carbonyl nickel x 1: 2 30 34 38 Z .. becoming, wt.% 825-4) dye, fat-soluble green anthraquine (VTUKAKZ P-17-6-5) 2 1,1 0,2 -Ji and c a . 3 Width Modification Adhesion of phono-coloration (diameter of the required background holder) mm, processing 1 mm of soap solution

5 7108386

Claims (1)

The formula of erosion as a conductive layer is used The method of relief decoration of products. A mixture of xylene with bottled thermoplastics based on polystyrene, splicing (1: 2) 62-70 resulting in that from the surface of the product S 1 Sarbonyl nickel 30-38 a conductive layer is applied, then the layer after polishing of the surface of additional metal is galvanically deposited, after which it is treated with a colored solvent The resulting relief is polished, about tl and -polystyrene, due to the fact that, in order to enhance the sources of information decorative effect due to the formation taken into account in the examination crackle patterns, as well as improvements 1- USSR author's certificate N 437810, adhesion of the metal layer to the surface, cl. C 25 D 3/38, 1970 (prototype). composition containing, wt.%: