What kind of core structure does diapers use?
With the passage of time, the diapers we used when we were young have also become diapers. Different manufacturers use different materials when making diapers. What are the specific core structures used, let us understand. 1. Wood pulp core (fluff pulp) Wood pulp core is formed by mixing wood pulp with polymer water-absorbing resin without layering. Advantages: the wood pulp core diaper combs the urine into the absorbent core through the wood pulp fiber, and then locks the urine through the strong water-locking property of the polymer material, so that the surface of the diaper can absorb a certain amount of urine and keep it dry. Disadvantages: Due to the existence of wooden paddles, there is always no solution to the lump and fault events. However, due to the excellent carding performance of wood pulp fiber, it has been widely used in some international big-name diaper products. 2. Double core (second generation core) The structure of the double core is similar to the structure of the sheet laminate (the polymer absorbent bottom layer is laminated with the wood pulp layer, just like a flat paper, plus a non-woven fabric). The laminated structure makes the double-core diaper not as loose as the composite structure of polymer and wood pulp, and improves the water absorption while optimizing the structural design. Advantages: The wood pulp layer combs urine into the core through wood pulp fibers, and then absorbs it through the polymer absorbent bottom layer. The double layer has strong water absorption and high water absorption. Disadvantages: Because it is a laminated structure and non-woven fabric, the double-core diaper will be soft. 3. The rubber core (third-generation core) bakelite pulp core is a mixture of hot melt adhesive, non-woven fabric and polymer water-absorbing resin, and has a layering effect. Advantages: The core of the rubber-core diaper contains a large amount of polymer to ensure the absorption of the diaper, the overall expansion after water absorption, the flatness will not swell due to the presence of the adhesive, and it can maintain the original after absorbing liquid Shape shortcomings: As the diaper swells after absorbing water, the breathability is poor after absorption, and too much stuffiness will make the baby's butt uncomfortable. Factories with insufficient technical capabilities will leave the smell of glue or hardened diapers after absorbing water, resulting in high production costs. u200b4. Woven core Woven core diapers are made of breathable, flexible and moisture-proof materials, supplemented by high-quality wood pulp with a specific structure, and then filled with a polymer absorbent bottom using a special surface layer. Advantages: the non-laminated structure of the woven core is very thin, and the filled polymer absorbent primer has a significant impact on water absorption and moisture resistance. The specific woven structure will not swell and break after water swells, and the diversion effect is good. Disadvantages: Compared with the second and third generation diapers, the advantages of braided core protrusions are higher in cost. If you want to learn more about diapers, please visit our website to learn more: Next: Do you want to know how diapers are tested?
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