There are significant differences between low-weight non-woven fabrics and high-weight non-woven fabrics in many aspects. The following is a detailed comparison of the two:
1. Definition and representation method
Low-weight non-woven fabrics: Non-woven fabrics with lower weight are usually expressed in "g/m²" (g/m²), such as 40g/m², 60g/m², etc. The weight here is not the actual weight of the fabric, but a parameter used to distinguish the thickness of the fabric.
High-weight non-woven fabrics: Non-woven fabrics with higher weight are also expressed in "g/m²" (g/m²), such as 100g/m², 200g/m², etc.
2. Physical properties
Thickness and strength: High-weight non-woven fabrics are usually thicker and have better strength and durability due to the higher fiber content per unit area. In contrast, low-weight non-woven fabrics are lighter and thinner, but may sacrifice certain strength and durability.
Softness and breathability: Low-weight non-woven fabrics are usually softer and more breathable due to their low fiber content. High-weight non-woven fabrics may have slightly poorer breathability due to their dense fibers.
3. Application scenarios
Low-weight non-woven fabrics: Due to their lightness, softness, and good breathability, they are widely used in medical dressings, sanitary products, packaging materials and other fields. In these applications, the softness and breathability of the material are required to be high, while the strength and durability are relatively low.
High-weight non-woven fabrics: Due to their high strength and good durability, they are more suitable for outdoor equipment, heavy packaging bags, civil engineering reinforcement and other occasions that require greater tension and impact.
4. Processing difficulty and cost
Processing difficulty: Due to the high fiber content and tight structure of high-weight non-woven fabrics, higher temperatures and pressures may be required during the processing process, so the processing difficulty is relatively large. Low-weight non-woven fabrics are easier to process and shape.
Cost: Generally speaking, high-weight non-woven fabrics have relatively high costs due to the large amount of materials used and the difficulty of processing. Low-weight nonwovens are cheaper and easier to produce on a large scale.
