Disinfection. To combat microbes (for decontamination) in addition to choosing the right measure, the adopted technique of work is very important. Spraying is the most appropriate. The process should proceed in the following stages: 1) drying the object, 2) Purification, 3) application of the disinfectant, 4) thoroughly dried with hot air. Disinfectants must meet certain conditions. They should be harmless to fabrics, easy to use, they must not reduce the strength of the fabrics, or have a bad effect on dyes. They should also be colorless, odorless and non-toxic to humans.
Many agents are used for disinfection, m.in. ethylene oxide (as gas), fluoride soda (in solution), thymol vapor or its 5%. solution, pary naftalenu, and Toralit A Teig (8-copper quinolinate, prod Casella) in water dispersion. The disadvantage of the latter measure is the effect on the texture of the fabric and the coloration (yellow-green), hence its use should be limited to textiles from archaeological excavations Proxel A is also used (dihydroxydichlorodiphenylmethane, product HERE) 0,2—0,5-proc. dissolved in ethyl and isopropyl alcohol or 1% by the weight of the fabric. Shirlan Powder is also used (salicylic acid anilide, product HERE) dissolved in ethyl and methyl alcohol or 1-3%. Germocid solution (quaternary ammonium compounds, prod BASF)
Of the organic compounds, mainly copper compounds are used, np. copper kerosene, copper oleate and ricinoleate, 3-copper phenylsalicylate and copper pentachlorophenate (strong disinfectant, but dark red in color). Zinc dimethyldithiocarbamate is also in use (were), in an amount 0,75% by weight of fabric with melamine resin in quantity 2% by the weight of the fabric, as well as gaseous Rotanox (90% carbon dioxide and 10% ethylene oxide).
