Selecting elastic nonwoven fabric is a technical task that requires comprehensive consideration of material properties, application scenarios, and sustainability. To truly achieve a balance between environmental protection and practicality, it is not enough to rely on a single indicator; instead, a full-chain assessment must be conducted from the material composition, production process, performance during use, to disposal.
I. Core Performance: The Foundation of Practicality
Stretch and Recovery Force: This is the core of "elasticity". High-quality elastic nonwoven fabric should have uniform and persistent stretching ability in a specific direction (either longitudinal or transverse) or in both directions, and should be able to quickly and proportionally return to its original state after the external force is released. During the test, the fabric can be repeatedly stretched several times to observe if there is any slackening, deformation or permanent stretch injury. This directly affects the fit, comfort and lifespan of the product.
Air permeability and moisture permeability: For intimate products, medical dressings, or agricultural covering materials, air permeability is of utmost importance. It affects the comfort and hygiene during use. A preliminary judgment can be made by observing the material structure (whether it is uniformly porous) or through a simple exhalation test.
Feel and strength: High-quality products usually have a soft and smooth texture, without being rough or irritating. At the same time, they should have excellent tear resistance and bursting strength to ensure they are not easily damaged during actual use. Materials that are too fragile or stiff may affect the experience.
Thickness and weight: Choose based on the application. For instance, hygiene products require a lightweight and soft texture; while packaging materials or furniture padding might need a thicker and more supportive specification. Weight (grams per square meter) is an objective measurement standard.
How to achieve "balance"? —— Choose based on the situation
Medical protection and hygiene products (such as masks, surgical gowns, and surface layers of sanitary napkins): Prioritize safety, breathability, and skin compatibility. Materials must be of medical grade and non-irritating, while also considering moderate elasticity to fit the face or body. Cotton spunbond non-woven fabric or high-performance eco-friendly composite materials can be preferred.
Environmental-friendly packaging and handbags: Focus on strength and durability, while emphasizing degradability. You can choose thick PLA non-woven fabric or elastic non-woven fabric with a higher proportion of recycled materials to ensure reusability and ease of disposal in the end.
Home textiles and garment linings: Balancing elasticity, feel and cost. For the parts that come into direct contact with the skin, environmental friendliness and softness are crucial; for the supporting parts, the elasticity recovery force is more important.
Agricultural and horticultural applications: Emphasize the combination of durability, breathability and biodegradability. For products such as plastic films, materials that can naturally degrade within a specified period can be selected to avoid white pollution.
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