METHOD FOR BIOCIDE TREATMENT OF TANNING SEMI-FINISHED PRODUCT Russian patent published in 2009 - IPC D06M16/00 D06M13/46 D06M11/83 B82B1/00 C12S7/00 C14C9/00 

FIELD: textile fabrics, paper.

SUBSTANCE: invention is related to chemical technology of fibrous materials, in particular to biocide treatment of tanning semi-finished products. Method consists in application of aqueous composition onto material with 0.035-0.09 g/l of AB katamin and potassium iodide taken in the ratio of 10:1, and 0.03-0.06 g/l of nanosize silver particles preparation. Preparation is a water dispersion with concentration of Ag⁺ 0.15-1.5 wt %, nanoparticle size 5-20 nm, and maximum optical density in the area of waves length of 315-540 nm. Components are applied simultaneously or serially with interval of 5 minutes at 30 C and total duration of processing of 10 minutes. Composition is applied by spraying or impregnation at roller machine, or at the stage of the last washing of semi-finished product in drum with liquid coefficient that equals 3.

EFFECT: invention provides for expansion and improvement of biocide treatment action spectrum, and also reduction of applied preparation consumption.

4 cl, 1 tbl, 3 ex