spunbond nonwoven fabrics

Spunbond nonwoven fabrics are widely used in the production of diapers, especially in the structure of their outer layer and moisture absorption layer. The process of producing spunbond nonwoven textiles mainly includes the following steps: 1. Polymer preparation (raw material selection) The raw materials of spunbond nonwoven fabrics are usually polypropylene (PP) or polyester (PET), which are widely used in nonwoven production due to their excellent mechanical properties, chemical stability and cost-effectiveness. Polypropylene is usually used in the production of diapers.   2. Melt Spinning In the melt spinning process, the polymer raw material is first heated to its melting point and becomes molten. The molten polymer is then extruded through a spinning nozzle through small holes to form long and thin fibers.   These fibers are not woven or knitted by traditional textile methods, but are directly formed from the ejected molten polymer filaments. This spinning method can quickly produce a large number of fibers and can accurately control the diameter of the fibers.   3. Cooling and solidification The polymer fibers extruded from the spinning nozzle pass through a cooling zone (usually by air cooling), during which the molten polymer quickly solidifies into solid fibers. 4. Formation of the fiber web (web formation) When these cooled fibers are ejected onto a mesh frame or collecting belt, the fibers are randomly arranged to form a fiber web (the prototype of nonwoven fabric). This web can be treated and compacted in different ways to form connections between the fibers.   Electrostatic or mechanical action: Sometimes, the fiber web is strengthened by electrostatic adsorption or mechanical methods (such as needle punching, heat pressing, etc.) to make the web structure more compact and enhance the strength of the nonwoven fabric.   Thermal bonding: Some spunbond nonwovens use a thermal bonding process to fix the fibers, that is, heating to melt and bond the contact points between the fibers.   5. Post-processing and finishing After the initial formation of nonwoven fabrics, they usually go through further post-processing steps, such as:   Drying: Remove excess water and solvents. Surface finishing: For example, by surface coating or electrostatic treatment, the performance of non-woven fabrics is improved, such as enhanced breathability, waterproofness, etc. Cutting and molding: According to the required size, the non-woven fabric is cut into suitable sizes for different products. 6. Quality control and testing Finally, the non-woven fabric must undergo a series of quality tests before leaving the factory, including tests on thickness, strength, uniformity, breathability and other properties to ensure that it meets the use requirements of products such as diapers.   The key to the production of disposable nonwoven fabric is to melt the polymer and spin it into fibers through melt spinning technology, and then process it into the final non-woven fabric product through mesh molding and post-processing. Its advantages include high production efficiency, low cost, and recyclable materials. It is widely used in diapers, medical, hygiene and other disposable products.  

Sanitary napkins are essential hygiene products for women during their menstrual cycle, and their core materials are crucial to user experience and health safety. Non-woven fabric plays a key role in this. Below, we'll explain the impact of different non-woven fabrics on the user experience and how to choose the right one.   Non-woven fabrics are made by bonding fibers using physical, chemical, or thermal methods, rather than traditional textile processes. They are soft, breathable, and inexpensive, and are widely used in all layers of sanitary napkins.   Different non-woven fabrics significantly impact the user experience. In terms of comfort, products with a surface layer made of hot-air or spunlace non-woven fabric are softer and more skin-friendly, suitable for sensitive skin; spunbond non-woven fabrics have a rougher feel and can easily cause friction and discomfort. Regarding breathability, hot-air non-woven fabrics are fluffy and breathable, reducing stuffiness; spunbond non-woven fabrics are less breathable and tend to become damp after prolonged use. In terms of absorbency, spunlace non-woven fabrics absorb liquid quickly, reducing surface residue; spunbond non-woven fabrics tend to clump after absorbing liquid, affecting dryness. In terms of safety, spunlace technology uses no chemical adhesives, making it safer and more environmentally friendly; some low-priced products use non-woven fabrics containing fluorescent agents, which pose an allergy risk.   Choose sanitary napkins according to your needs. For sensitive skin or daily use, choose products with a surface layer of hot-air/spunlace non-woven fabric; for sports or overnight use, prioritize composite non-woven fabric designs, which balance leak prevention and breathability; if environmental protection is a concern, consider sanitary napkins made from biodegradable materials (such as PLA polylactic acid non-woven fabric). For more information, please click www.glinknonwoven.com