METHOD OF OBTAINING ANTIMICROBIAL COPPER-CONTAINING CELLULOSE MATERIAL Russian patent published in 2014 - IPC D01F11/02 D06M16/00 D06B1/00 D06M23/00 A61L15/00 

FIELD: chemistry.

SUBSTANCE: invention relates to technology of production of antimicrobial copper-containing cellulose materials and can be used in the textile industry. A cellulose matrix is processed with water dispersion of copper particles with their concentration of 0.025-1.28 wt %. Dispersion is obtained by mixing an alkaline extract of bast fibres with a copper salt solution and with a reductant solution and standing of the said mixture at a temperature from room to 95°C for 10-60 min. A concentration of the alkaline extract of the bast fibres in the dispersion constitutes 10-80 wt %. Processing the cellulose material with water dispersion of copper particles is carried out by impregnation or aerosol application. As the reductant used are taken separately or in a combination with each other compounds, selected from the group of reductants, capable of reducing copper ions, for instance, sodium borohydride, rongalite, sodium thiosulphate, hydrazine sulphate. As the copper salt, copper sulphate, chloride, acetate or nitrate is used. In obtaining water dispersion of copper particles a ratio of the reductant and the copper salt concentrations constitutes 1:1-1:2.5.

EFFECT: application of the invention makes it possible to increase efficiency of obtaining the antimicrobial copper-containing cellulose material, quality of processed the non-woven material and ecological safety.

4 cl, 2 tbl, 9 ex