SU1331923A1 - Method of producing dyed polymeric material - Google Patents

Abstract

The invention relates to the decoration of plastic products and materials, in particular, to a method for producing a colored polymer material with a stone pattern, which can be used for the production of finishing materials and decorative products. The essence of the invention consists in preforming the inhomogeneous structure of a polymer product by means of a molding method by processing a mixture of low-pressure polyistylene or propylene with polyethylene terephthalate, having a specific viscosity of 0.1-0.25 in tricresol, and subsequent dyeing of the surface of the molded product with disperse dye mi from aqueous solutions. The method allows to increase the contrast of the surface color fragments, creating an effect of the stone pattern, 1 tab. Q 9 (L

Description

1331923

refers to decorators are you

Surface finishing of plastics materials, in particular, to a method for producing a colored polymer material with a stone pattern, which can be used for finishing household premises or in the form of molding material as consumer items.

The aim of the invention is to increase the contrast of surface color fragments, creating an effective stone pattern.

A decorative pattern is obtained due to the layered distribution of polyethylene terephthalate in the product and the different susceptibility of polyolefins and polyethylene terephthalate (PET) to disperse dyes. Surface areas containing large amounts of PET are painted more intensely, which gives the surface of the products a characteristic stone pattern whose color depends from the color of the dye. The increase in intensity (coitrust staining) reaches p 7.1-0.3.

Sulfanol, sulfiol (alkyl benzenesulfonate) and syntamide, for example, are used as surfactants.

Painted polymer material is obtained in a slower manner.

190-180 g of low-pressure polyethylene (HDPE) and 10-40 g of PET or polypropylene are loaded into a drum mixer and stirred for 10-15 minutes at a drum speed of 35-40 rpm. From the mass obtained by the method of injection molding, products are made. The obtained products are painted with a composition containing (mm aqueous solution of disperse dye and surfactant in the following ratio of components, g / l:

Disperse dye 10-15

Io surface active

substance1-3

Vodo I l

The process of dyeing at 60-70 C for 10-15 yush.

0

15 20

The compositions of the polymer blend, the dye solutions, and the results of coloring are presented in the table.

When the content in the composition of PET in the amount of 3 masD (Example 2), a weak uneven staining is observed, n 2.3 0.4 without obtaining imitation of the stone pattern. When the amount of the dispersed dye is 5 g / l (example 6), the effect is also not achieved. The known method gives a weak uniform staining over the entire surface of the product, the contrast of staining is n 1 - 0.1, Resistance to dry friction is 2-3 points. From the data in the table it can be seen that using the proposed method of dyeing makes it possible to obtain contrasting bright patterns on the surface of polyolefin products, imitating) the distinctive pattern of a stone, with increased resistance of the pattern to abrasion.

In addition, the use of the proposed method allows to reduce the energy intensity of the dyeing process in connection with the possibility of

Claims (1)

30 at lower temperatures (50-70 instead of 80-140 ° C). Claim of the method of obtaining a colored polymer material by mixing granulated polyolefin and polyester, then processing the mixture by injection molding at elevated temperatures and painting the surface of the material obtained, l and h a 40 y and u so that, in order to increase the contrast of surface color fragments that create the effect of a pattern under a stone, a mixture of polyethylene is molded 45 low pressure or propylene with 5 to 20 wt.% Polyethylene terephthalate with a specific viscosity of 0.1-0.25 in tricreresol and dyeing is carried out by treating the surface of the material with an aqueous solution of 50–15 g / l of disperse dye and 1- 3 g / l of surfactant at 50-70 ° C for 10-15 minutes. ND END 100 97 Dispersed brown 10 Dispersive KOFICHIEVY 10 Sintanol 1 WTF with specific viscosity O, I-0.15 V END ETF AND ETF AND EF END PET PEND 95 5 90 10 85 15 90 10 90 END 90 Dispersed brown 10 Si Tanol I Dispersed brown 10 Sintanol I Dispersed brown 10 Snnta-nol 1 Dispersed copyright 5 Sintanol I Dispers - ml brown 10 Dispersed brown 10 ten   0.1 Weak even staining 15  t 0,4 Weak uneven staining Decorative Shmu pattern 60 15 D, 75 t 0,8 60 i5 5.15 i 0.6 Same 60 15 6.7 i 0.4 15 2.8 t 0.6 Weak uneven staining 40 15 3.0 t 0.8 Same 60 5 2.8 t 0.7 -.- 1331923 PET ten 60 70 70 Editor N. Gunko Compiled by AoMolin Tehred M. Khodanych Order 3773/25 Circulation 419Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4 Table continuation 6.5 t 0.4 Decorative pattern for malachite (light green background with bright green stains) 7.1 t 0.3 Decorative pattern under chrysoprase (green 1st background with dark green divorces) 6.7 i.0.5 Decorative pattern podpazurit (blue background with bright blue divorces) Corrector Vogiern to