棉布、无纺布及一次性过滤纸的微生物屏障效果及棉布相关参数研究

Microbial barrier effect of cotton cloth,non-woven fabric and disposable filter paper,as well as related parameters of cotton cloth

目的比较几种医用包装材料阻菌率,不同洗涤次数的棉布失重率、撕裂强度及耐磨性的差异。方法依据无菌医疗器械包装试验方法,对棉布、无纺布、一次性过滤纸三种包装材料进行阻菌率测试,采用棉布失重试验、抗拉力试验、耐磨性试验,对不同洗涤次数棉布的失重率、撕裂强度及耐磨性进行测试。结果透气包装材料微生物屏障分等试验中,双层新棉布、双层旧棉布、一次性过滤纸和无纺布平均阻菌率分别为62.15%、31.39%、82.04%和89.71%;棉布经洗涤30次后失重率下降1.22%,撕裂强度下降6.70%,经织物平磨仪测试均没有起毛起球。结论阻菌效果排名依次为无纺布、一次性过滤纸、双层棉布。棉布经洗涤30次后,失重率和撕裂强度有所下降,阻菌效果较新棉布差。

ObjectiveTo 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.MethodsAccording 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.ResultsIn 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 non woven fabric were62.15%,31.39%,82.04%,and89.71%respectively;after cotton cloth was washed30times,the weight loss rate decreased by1.22%,tear strength decreased by6.70%,fabric rubbing test revealed there was no pilling.ConclusionBacterial blocking effect ranked as follows:non woven fabric,disposable filter paper,double layer cotton cloth.After30times of washing,the weight loss rate and tear strength decreased,and bacterial blocking effect was worse than that of new cotton cloth.