Is Non-woven Fabric Waterproof Or Not

The waterproof properties of non-woven fabrics vary depending on their type and subsequent processing. Specifically:

Polypropylene non-woven fabrics are commonly used in the medical field and the manufacture of disposable masks. Their waterproof properties are often obtained through specific processes.
non-woven fabrics

Meltblown non-woven fabrics are known for their excellent filtration and insulation properties, and their waterproof capabilities can be flexibly adjusted according to different processing methods.
It is worth mentioning that SMS non-woven fabric is a composite material that combines spunbond and melt-blown technology. It is commonly used in medical protective clothing. Its built-in melt-blown layer naturally gives good waterproof properties.
To sum up, whether a non-woven fabric is waterproof or not depends not only on its basic material but more importantly on the subsequent processing and application scenarios.