Microbial barrier effect of cotton cloth, non-woven fabric and disposable filter paper, as well as related parameters of cotton cloth / 中国感染控制杂志

ABSTRACT

Objective To compare bacterial blocking rate of different medical packaging material,as well as weight loss rate,tear strength,and abrasion resistance of cotton cloth with different times of washing.Methods According to test methods for sterile medical device packaging,bacterial blocking rates of cotton cloth,non-woven fabric,and disposable filter paper were tested.Weight loss test,tensile test,and abrasion resistance test of cotton cloth were performed to test weight loss rate,tear strength,and abrasion resistance of cotton cloth with different times of washing.Results In test for microbial barrier ranking of porous package material,the average bacterial blocking rates of double-layer new cotton cloth,double-layer old cotton cloth,disposable filter paper,and nonwoven fabric were 62.15％,31.39％,82.04％,and 89.71％ respectively;after cotton cloth was washed 30 times,the weight loss rate decreased by 1.22％,tear strength decreased by 6.70％,fabric-rubbing test revealed there was no pilling.Conclusion Bacterial blocking effect ranked as follows:non-woven fabric,disposable filter paper,doublelayer cotton cloth.After 30 times of washing,the weight loss rate and tear strength decreased,and bacterial blocking effect was worse than that of new cotton cloth.