2results about How to "Efficient bactericidal" patented technology

The present invention relates to a hypochlorous acid composite disinfectant and a preparation method thereof, and relates to the technical field of disinfectants. The hypochlorous acid composite disinfectant comprises the following components by weight: 60-75 parts of hypochlorous acid aqueous solution, 3-8 parts of scutellaria baicalensis extract, 19.5-25 parts of polyethylene glycol, 2-5 parts of surfactant and 0.5-2 parts of phosphate. The present invention mainly uses hypochlorous acid and introduces an appropriate proportion of scutellaria baicalensis extract as a disinfection component, which significantly enhances the overall disinfection effect of the obtained disinfectant; at the same time, other components such as polyethylene glycol and phosphate are matched, which significantly enhances the stability of the obtained disinfectant, and has efficient bactericidal performance against pathogenic microorganisms such as African swine fever virus, which can meet the sterilization and disinfection needs of farms.

This invention discloses a precursor of a monochlorotriazine halogen amine antibacterial agent for low-temperature, low-salt finishing, its preparation method, and a cotton fabric and finishing method thereof. The precursor incorporates a 5,5-dimethylhydantoin derivative group linked by a hydrophilic group of sodium p-benzenesulfonate and an ether bond, and is prepared by a temperature- and pH-controlled reaction of cyanuric chloride with sodium p-aminobenzenesulfonate and 3-(3-chloro-2-hydroxypropyl)-5,5-dimethylhydantoin. The cotton fabric finishing process involves precursor dissolution, neutral salt impregnation, low-temperature weak alkali grafting, and chlorination. The process includes impregnation at 25-40°C and alkali reaction at 15-35°C, with a neutral salt concentration of 20-60 g / L and an alkali concentration of 0.5-2 g / L. The precursor has excellent water solubility and fiber compatibility. The finishing process inhibits hydrolysis and reduces energy consumption. The treated cotton fabric has a kill rate of over 99.99% against Staphylococcus aureus and Escherichia coli within 1 minute. After 50 washes, the active chlorine recovery rate exceeds 80%. It has high strength retention, is energy-saving, environmentally friendly and easy to industrialize.