4-amino-laurylpyridinium chloride （ALPC） was synthesized and employed in antimicrobial finishing of wool fabrics. The structures of the salt was fully characterized by using FTIR, 1 H-N-MR and ^13C-NMR analysis. The...4-amino-laurylpyridinium chloride （ALPC） was synthesized and employed in antimicrobial finishing of wool fabrics. The structures of the salt was fully characterized by using FTIR, 1 H-N-MR and ^13C-NMR analysis. The effects of pH conditions of finishing baths, finishing time and temperature, and salt concentrations were investigated. ALPC could form ionic interactions with anionic groups on wool, which contribute to durable antimicrobial functions. The finished wool fabrics exhibited antimicrobial efficacy against Escherichia coll. The washing durability of antimicrobial functions on the finished wool fabrics was also studied.展开更多
Medical compression hosiery based on polyurethane and polyamide covered yarns was treated with two antibacterial agents,SCJ-891 and SCJ-963, to investigate their antimicrobial performance. Various parameters of finish...Medical compression hosiery based on polyurethane and polyamide covered yarns was treated with two antibacterial agents,SCJ-891 and SCJ-963, to investigate their antimicrobial performance. Various parameters of finishing process, including concentration,temperature,pH and liquor ratio,were studied in the single factor and orthogonal experiments. ANOVA analysis indicated that all of these four variables played important roles in antimicrobial efficacy. Different combinations of finishing parameters gave different antimicrobial efficacies against both gram positive bacteria Staphylococcus aureus( S. aureus) and gram negative bacteria Escherichia coli( E. coli). SCJ-963 treated fabric had better antibacterial efficacy when compared with that of SCJ-963 treated yarn. Meanwhile both SCJ-963 treated fabric and yarn showed better antibacterial efficacy when compared with SCJ-891 treated fabric and yarn. The optimized parameters for SCJ-891 treated fabric against S. aureus( A: 86%) were a liquor ratio of 1: 20,a concentration of 10% of weight of fabric,pH of 4. 5 and a temperature of 99℃; the optimized parameters for SCJ-963 treated fabric against S. aureus( A: 83%) were a liquor ratio of 1: 15,a concentration of 10% of weight of fabric, a pH of 5 and a temperature of 99℃. Furthermore, two kinds of antimicrobial finishing of the fabric had good resistance to 50 times washing. This study concluded that SCJ-891 and SCJ-963 were compatible to be used in medical compression hosiery.展开更多
文摘4-amino-laurylpyridinium chloride （ALPC） was synthesized and employed in antimicrobial finishing of wool fabrics. The structures of the salt was fully characterized by using FTIR, 1 H-N-MR and ^13C-NMR analysis. The effects of pH conditions of finishing baths, finishing time and temperature, and salt concentrations were investigated. ALPC could form ionic interactions with anionic groups on wool, which contribute to durable antimicrobial functions. The finished wool fabrics exhibited antimicrobial efficacy against Escherichia coll. The washing durability of antimicrobial functions on the finished wool fabrics was also studied.
基金"Biomedical Textile Science and Technology"111 Project of Ministry of Education,China(No.B07024)
文摘Medical compression hosiery based on polyurethane and polyamide covered yarns was treated with two antibacterial agents,SCJ-891 and SCJ-963, to investigate their antimicrobial performance. Various parameters of finishing process, including concentration,temperature,pH and liquor ratio,were studied in the single factor and orthogonal experiments. ANOVA analysis indicated that all of these four variables played important roles in antimicrobial efficacy. Different combinations of finishing parameters gave different antimicrobial efficacies against both gram positive bacteria Staphylococcus aureus( S. aureus) and gram negative bacteria Escherichia coli( E. coli). SCJ-963 treated fabric had better antibacterial efficacy when compared with that of SCJ-963 treated yarn. Meanwhile both SCJ-963 treated fabric and yarn showed better antibacterial efficacy when compared with SCJ-891 treated fabric and yarn. The optimized parameters for SCJ-891 treated fabric against S. aureus( A: 86%) were a liquor ratio of 1: 20,a concentration of 10% of weight of fabric,pH of 4. 5 and a temperature of 99℃; the optimized parameters for SCJ-963 treated fabric against S. aureus( A: 83%) were a liquor ratio of 1: 15,a concentration of 10% of weight of fabric, a pH of 5 and a temperature of 99℃. Furthermore, two kinds of antimicrobial finishing of the fabric had good resistance to 50 times washing. This study concluded that SCJ-891 and SCJ-963 were compatible to be used in medical compression hosiery.
