SAP

The diaper absorbent core of baby diapers is the core component that realizes its urine absorption function, which mainly relies on the excellent performance of polymer absorbent resin (SAP). SAP can absorb and lock a large amount of water, and its water absorption capacity is so strong that it can reach hundreds or even thousands of times its own weight. In the structure of diapers, absorbent polymer exists in granular form and is mixed with fluff pulp to form the absorbent layer. When urine touches the surface layer of the diaper (usually made of non-woven fabric), the urine will be quickly received and transferred to the diversion layer, which is also made of non-woven fabric to ensure that the urine can be evenly distributed to the absorbent layer. In the absorbent layer, the hydrophilic group of SAP immediately takes effect, quickly attracting and fixing water molecules, causing the SAP particles to swell and fuse with each other, thereby efficiently absorbing urine. SAP itself has the property of being insoluble in water, so it can absorb a large amount of urine without exudation. At the same time, its excellent water retention capacity ensures that the urine is firmly locked inside the diaper, effectively preventing urine backflow or leakage. In summary, the process of urine absorption by polymers in baby diapers is a complex system involving multiple efficient steps such as urine reception, conduction, absorption and locking. This process ensures that diapers can quickly and effectively absorb and lock urine, providing babies with a lasting dry and comfortable experience.

Super absorbent polymer , as the core of sanitary napkin absorbent materials, is undoubtedly a perfect combination of technology and comfort when used in sanitary napkins. SAP has demonstrated the following outstanding effects: Extraordinary water absorption performance: SAP has excellent water absorption capacity, which can quickly absorb and firmly lock a large amount of liquid, such as menstrual blood, to ensure that the sanitary napkin remains dry in the face of turbulent liquid flow, effectively relieving moisture and discomfort.   Stable water retention performance: After absorbing water, SAP will form a stable gel structure, which is difficult to release water molecules even under external pressure. This excellent water retention performance prevents the sanitary napkin from quickly re-seeping after absorbing liquid, thus keeping it dry for a long time. Significant anti-side leakage effect: SAP's water absorption and expansion characteristics form a solid barrier inside the sanitary napkin, effectively preventing the liquid from spreading to both sides, significantly reducing the risk of side leakage.   Improved comfort: SAP is soft and skin-friendly, making the sanitary napkin fit the skin better during use, significantly reducing friction and discomfort, and improving the overall user experience. In summary, super absorbent polymer (SAP), as a key absorbent material in sanitary napkins, plays multiple important roles such as water absorption, water retention, leakage prevention and comfort improvement, bringing women a more comfortable and dry experience during menstruation.