what is the difference between PP and PET non woven fabric?
The main differences between PP (polypropylene) and PET (polyethylene terephthalate) non-woven fabrics are as follows:
1.Material Composition:
- PP non-woven fabrics are made from polypropylene fibers or filaments.
- PET non-woven fabrics are made from polyethylene terephthalate fibers or filaments.
2.Properties:
- PP non-woven fabrics are lightweight, have good moisture resistance, and are relatively inexpensive.
- PET non-woven fabrics are stronger, more durable, and have better dimensional stability compared to PP non-wovens. They also have better resistance to heat and UV radiation.
3.Chemical Resistance:
- PP non-woven fabrics have good resistance to acids, bases, and solvents.
- PET non-woven fabrics have moderate chemical resistance, but they are more resistant to certain solvents and acids than PP non-wovens.
4.Dyeability:
- PP non-woven fabrics are generally less dyeable than PET non-wovens, as PP is a non-polar polymer.
- PET non-woven fabrics can be easily dyed using various dyeing techniques due to their polar nature.
5.Applications:
- PP non-woven fabrics are commonly used in disposable products, such as diapers, wipes, medical gowns, and geotextiles.
- PET non-woven fabrics are used in applications that require higher strength and durability, such as filtration media, automotive components, and reinforcement materials.
6.Environmental Impact:
- PP non-woven fabrics are considered more environmentally friendly than PET non-wovens, as they require less energy to produce and are lighter in weight.
- PET non-woven fabrics generally have a higher carbon footprint due to the energy-intensive production and recycling processes.
In summary, while both PP and PET are used in non-woven fabrics, PET non-wovens offer higher strength, durability, and dimensional stability, while PP non-wovens are lightweight, moisture-resistant, and less expensive. The choice between the two depends on the specific application requirements and performance criteria.
