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The breathable non woven fabric can enhance the breathability inside the diaper, allowing water vapor to circulate outside the diaper and promptly expel moisture and heat, effectively reducing the chance of urinary rash. It is soft, comfortable, and does not irritate the skin. The surface of adult sanitary napkins that is close to the skin is also made of non-woven fabric, but the non-woven fabric used for diapers must be softer and more suitable for the baby's skin than the one used for sanitary napkins. There are three types of base fabrics: woven, knitted, and non-woven. The nonwoven fabric materials refers to fibers that are oriented or randomly arranged, and is a new generation of environmentally friendly materials. It has the characteristics of moisture resistance, breathability, flexibility, lightweight, non combustible, easy to decompose, non-toxic and non irritating, rich colors, low price, and recyclability. If polypropylene (PP material) pellets are commonly used as raw materials, they are produced through a continuous one-step process of high-temperature melting, spinning, laying, and hot pressing. It is called cloth due to its appearance and certain properties. The characteristics of non woven fabric for diaper determine its use. Generally, the characteristics of non-woven fabric include wear resistance, softness, adhesiveness, water absorption, porosity, thermoplasticity, anti-static, smoothness, anti-static, breathability, disinfectability, ultra-thin, conductivity, high strength, breathability, dry cleaning, water resistance, printability, durability, hydrophilicity, mite resistance, elasticity, weldability, fire resistance/flame retardancy.   

Specifically, the role of ADL nonwoven fabric can be subdivided into the following points: 1. ADL guide layer can allow menstrual blood to flow along the length direction of sanitary pads, rather than spreading on the surface, thereby reducing the possibility of side leakage. 2. Through good flow guiding performance, the ADL flow guiding layer can accelerate the absorption rate of menstrual blood and reduce the residence time of menstrual blood on the surface. 3.The ADL nonwoven raw materials can effectively prevent menstrual blood reflux and reflux, keep the surface of sanitary napkins dry, and reduce discomfort. 4. By quickly absorbing and preventing backflow, the ADL flow guide layer can keep sanitary napkins dry and enhance user comfort. 5. Good flow conductivity helps prevent menstrual blood leakage, ensuring users' sense of safety and comfort during use.

The advantages of super absorbent polymer paper in diapers mainly include fast water absorption, large suction capacity, and good water retention. ‌ 1.Firstly, fast water absorption is one of the important advantages of SAP paper for diaper. The structure of diapers usually includes a top layer, a conductive layer, an absorbent layer, and a bottom layer. The absorbent polymer in the absorption layer (such as Sumitomo polymer) can quickly absorb urine, reduce the contact time between urine and baby's skin, and thus reduce discomfort. 2.Secondly, the large suction capacity is also one of the advantages of SAP white paper. Polymer materials with high water absorption, such as San Da Ya Polymer, can ensure that diapers remain dry for a long time, reduce the frequency of nighttime changes, and improve the quality of baby's sleep. 3.In addition, good water retention is also an important characteristic of absorbent paper. After absorbing water, it can keep the surface dry and reduce the phenomenon of back seepage, ensuring that the baby's skin remains dry and comfortable at all times.

The production process of spunbond nonwoven fabric for diapers involves several key steps, starting from raw materials (typically polypropylene) and ending with a fabric that is soft, durable, and highly absorbent. Below is a breakdown of the main stages involved in the spunbond process for diapers:   1. Raw Material Preparation Polypropylene Resin: The primary raw material for spunbond nonwoven fabric roll is polypropylene (PP) resin, which is a thermoplastic polymer. The resin typically comes in pellet form and is melted before being spun into fibers.   2. Extrusion Melt Extrusion: The polypropylene pellets are fed into an extruder, where they are heated to their melting point (around 220–250°C). The molten polypropylene is then forced through a spinneret—a device with multiple small holes that shape the melt into fine filaments or fibers. 3. Spinning Spunbond Process: The molten polypropylene is extruded through the spinneret to form continuous filaments. These filaments are cooled by air or water sprays as they exit the spinneret. Formation of Fibers: The cooling process solidifies the molten polymer into fine fibers. The filaments are stretched using air jets to increase their alignment and improve the mechanical properties of the fabric.   4. Fiber Orientation and Bonding Fiber Laydown: The filaments are deposited onto a moving conveyor belt, forming a web of randomly oriented fibers. This is usually done using an air-laying or carding technique, where air is used to scatter the fibers evenly on the belt. Bonding (Thermal or Mechanical): After the fiber web is formed, it undergoes bonding to enhance its strength and integrity. There are two main types of bonding used: Thermal Bonding: The fiber web is passed through heated rollers, which melt the fibers at certain points, creating a bond between them. This method provides a soft, flexible fabric. Needle Punching (Optional): In some cases, mechanical bonding is used, where needles punch through the fiber web to interlace the fibers, making them stronger and more compact. 5. Fabric Consolidation The bonded web is then consolidated, or compressed, to give it the desired thickness and density. This process is often followed by further thermal or mechanical treatments to ensure uniformity and stability in the fabric structure.   6. Finished Product Fabric Cutting and Winding: The consolidated nonwoven fabric is wound onto large rolls, which can be further processed to the desired size for diaper production. In all, that is the production process of spunbond nonwoven for diaper.  

Diaper spunbond nonwoven plays a crucial role in the structure and performance of disposable diapers. Spunbond nonwoven fabrics are produced by bonding fibers together through a mechanical process, and they are used in several layers of a diaper. The main applications of spunbond nonwoven fabric in diaper raw materials include:   1.Top Sheet nonwoven fabric The spunbond nonwoven fabric is often used as the top sheet (the layer that comes in contact with the baby's skin). Its main function is to provide a soft, smooth surface while allowing moisture to pass through to the absorbent core. This helps keep the baby’s skin dry and comfortable.   2. Back Sheet nonwoven fabric  PP spunbond nonwoven fabric is also used for the back sheet, the outer layer of the diaper that helps prevent leakage. It is typically combined with a waterproof film or coating for additional leak protection.   3. Leg Cuffs and Waistbands Spunbond nonwoven is sometimes used for leg cuffs or waistbands, which are key components for ensuring a snug and leak-proof fit around the baby's legs and waist. Benefits: The flexibility, softness, and stretchability of spunbond nonwoven fabric ensure a comfortable and secure fit, while also maintaining effective leak prevention. In essence, diaper spunbond nonwoven fabric is integral to the performance, comfort, and reliability of disposable diapers, contributing to their absorbency, fit, leak prevention, and overall hygiene.

The application of coated nonwoven on big waistband S cut side tape is mainly reflected in its waterproof, moisture-proof and corrosion-resistant properties, which make coated nonwoven an ideal choice for diaper materials. ‌ The application of S cut nonwoven in diapers is mainly reflected in the following aspects: ‌1. Waterproof performance‌: Coated nonwoven has excellent waterproof performance, which can effectively prevent urine from penetrating into the inside of diapers, keeping diapers dry and comfortable‌. ‌2. Moisture-proof performance‌: In a humid environment, S cut tape nonwoven can keep diapers dry, reduce bacterial growth, and improve the hygiene performance of diapers‌. ‌3. Corrosion resistance‌: Coated nonwoven can resist the chemical components in urine and extend the service life of diapers‌