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Domestic Diaper Tech Upgrade: SAP Sheets Elevate Baby Care
News

Domestic Diaper Tech Upgrade: SAP Sheets Elevate Baby Care

2025-10-23

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It is understood that currently, the absorbent cores of Diapers on the Chinese market are mainly divided into two categories. One is the traditional wood pulp core (fluff pulp core) widely used in international brands, which is made by mixing wood pulp and SAP powder. The other is the SAP Sheet commonly found in domestic Diapers, which is formed through a mechanical pressing process of airlaid paper, non - woven fabric, and SAP powder, and has now developed into the 4th - generation technology.
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Although the traditional wood pulp core has been used in the market for many years, it has obvious shortcomings due to its structure of "disordered mixing of wood pulp and SAP powder". As wood pulp swells rapidly after absorbing water, this type of diaper is often relatively thick, which is likely to cause a stuffy feeling when worn by babies. At the same time, wood pulp is a key component in maintaining the flatness and softness of the diaper. If the proportion of wood pulp is reduced and the amount of SAP powder is increased in pursuit of lightness, the diaper will form "hard lumps" after absorbing water, and even break due to the sliding of the resin. Even if a sufficient amount of wood pulp is retained, for active babies, frequent movements will still aggravate the problems of core displacement and breakage, which not only affects wearing comfort but also increases the risk of diaper rash.
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In contrast, the SAP Sheet has made a breakthrough in technology and structure, accurately solving the pain points of the traditional core. We learned from a number of domestic diaper brands that the SAP Sheet tightly combines airlaid paper, non - woven fabric, and SAP powder through a mechanical pressing process to form a stable layered structure. This not only greatly reduces the thickness of the diaper, achieving a "lightweight and burden - free" wearing experience, but also allows the diaper to expand as a whole after absorbing water, avoiding local accumulation and the formation of hard lumps. At the same time, the tight layered structure effectively fixes the SAP powder. Even when the baby turns over and crawls frequently, it can reduce the displacement and breakage of the core, ensuring that the diaper remains flat and fits well at all times.
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Industry insiders said that the iteration and popularization of SAP Sheet technology not only reflect the innovative strength of domestic diaper brands in product research and development but also conform to the current parents' demand for "refined parenting". With the further maturity of technology, the SAP sheet is expected to make more breakthroughs in water absorption speed and water - locking capacity in the future, providing a better care experience for babies and at the same time helping domestic Diapers occupy a more important position in the market competition.