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KMID : 0380319930510010161
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Journal of Korean Research Institute for Better Living
1993 Volume.51 No. 1 p.161 ~ p.176
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A Study on Antimicrobial Activity and Fastness of the Washing of Cotton Fabrics by Organic silicone Quaternary Ammonium Salt
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Abstract
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Abstract-The purpose of this study is to examine antimicrobial activity, fastness of the washing relating to three bacterial strains such as Chaetomium globosum, Trichophyton mentagrophyte and Staphylococcus aureus, and optimal processing
conditions
according to the sticking quantity of ammonium salt to antimicrobially finished fabric, when reacting the organic silicone quarternary ammonium salt to cotton fabrics in accordance with the change in concentration, temperature, and time. The
result
of
this study is summarized as follows.
1. It was shown that the growth of Chaetomium globosum in untreated fabric is more rapid about six times than that of Trichophyton mentagrophytes on the seventh day, while the organicsilicone quaternary ammonium salt has more excellent
antimicrobial
activity of Chaetomium globosum than of Trichophyton mentagrophytes when antimicrobially finishing the cotton fabric by means of the organic silicone quaternal ammonium salt because the growth of Chcetomium globosum was restrained more than
Trichophytom
mentagrophytes.
2. The condition retaining the greatest effect on antimicrobial activuty was concentration. Then it was shown that Staphylococcus aures has excellent antinicrobial activity by indicating 96% bacterial reduction at 1.0% concentration, while
Chaetomium
globosum showed its growth restraint more than 92% at 3.0% concentration. Also Trichophyton mentagrophytes showed its growth restraint less than 71%.
3. it was also shown that reaction degree of ammonium salt to the cotton fabric increase with increase of its concentration. But its degree was lower than that of increase in concentration.
4. Chaetomium globosum showed that formation of its spore is remarkably late at the concentration more than 0.5% during antimicrobial finishing, under the condition of liquor ratio of 30 : 1, temperature of 30℃, and time of 30 minutes.
5. The reaction of individual specimens to the organic silicone quaternary ammonium salt according to finishing condition was most high at higher concentration under the conditions of temperature of 40℃, and time of 30 minutes.
6. When washing the antimicrobially finshed cotton fabric five, ten, and twenty times, respectively three strains showed nearly similar antimicrobial activity to the finshed fabric. This fact its durability to the washing is very excellent.
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KEYWORD
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