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In addition to cotton, the most commonly used packaging material in the disinfection supply center is non-woven fabric. When choosing non-woven polyethylene fabric, hospitals usually pay attention to the thickness (i.e. the weight), so is non-woven fabric the thicker the better? The answer is no.
The increase in the thickness of the non-woven polyethylene fabric means an increase in the weight per unit area, and the corresponding strength will increase, but due to its own structural characteristics, the increase in thickness does not mean an increase in the barrier properties of microbial sms.
For example, when thick non-woven polyethylene fabrics are used, the increase in the weight of the spunbonded layer does not significantly improve their antibacterial properties. Only when the pore size of the critical filter layer (i.e., the molten spray layer) is able to effectively filter out microbial sms and prevent the invasion of dust can the anti-bacterial performance be achieved.
As the thickness increases, the air permeability of packaging materials will also be affected, and the possibility of wet packaging will increase.
In clinical use, non-woven polyethylene fabrics will be damaged after sterilization. For this kind of damage, the main reason is that after the non-woven polyethylene fabric is sterilized at a high temperature, the fine plastic fibers will shrink to a certain extent. This performance is sterilized during use.
Non-woven polyethylene fabrics become more brittle after sterilization. Therefore, excessive force or unreasonable picking and placing method will cause destructive damage to the packaging material during use. In addition, the use of burrs and sharper tools on the edges will also damage non-woven polyethylene fabrics.
In such cases, it is recommended that the clinical packaging be sufficiently tight and handled with care, and that double-layer packaging is recommended according to the specification, which can greatly reduce the possibility of damage. If damage is solved by increasing the thickness of non-woven polyethylene fabrics only, then the possibility of wet packaging must be closely observed in addition to ensuring antibacterial properties.