| 摘要 |
Antimicrobial film based on biopolymers or textile material, or antimicrobial sponge or antimicrobial sponge cloth based on regenerated or precipitated cellulose, is claimed. The film or the sponge cloth is impregnated or coated with at least one alpha -amino acid ester, whose alpha -amino group is acylated with a fatty acid or its hydrochloride. The alpha -amino acid ester is covalently bonded to the film, sponge or the sponge cloth. An independent claim is also included for producing the film, sponge or the sponge cloth, comprising treating the film, sponge or the sponge cloth with a solution of at least one N-acyl-alpha -amino acid ester-hydrochloride, where the solution comprises a solvent comprising water and/or mono- or polyhydric alcohol, preferably ethanol, propanediol, polyethylene glycol or glycerin, and an agent that forms a covalent bond between the N-acyl-alpha -amino acid ester-hydrochloride and the film, sponge or the sponge cloth, and the treatment is preferably carried out by spraying the solution, immersing the film in an impregnation bath containing the solution, or applying the solution using a rolling mill application. |
