Where is the cause of leakage and drying of core body diapers?

What is the structure of core diapers, do not have to go into detail, I believe that every diaper industry practitioners are clear about this new structure to seize the fluff pulp diaper market at a rapid pace in recent years. However, no matter what kind of overwhelming advantage core diapers are currently appearing in front of fluff pulp diapers, it still has not made user complaints about diapers disappear from core structure diapers. We will still hear such complaints about core diapers, such as leaking urine, such as not dry, such as red butt... . The reason why many diaper manufacturers can't completely avoid these problems is that they know why and don't know why, or where the leakage and dry problems of core diapers come from. Know the root cause, and the problem will be solved.

 

To understand the possible problems with core diapers, it is necessary to analyze the entire process from wearing core diapers to infants and young children to discarding core diapers, because different problems arise from different periods of use, and for different reasons.

According to the different time periods after the baby urinates, the entire use process of the diaper can be broken down into the initial phase of the diaper suction, the middle phase of the diaper suction and the late phase of the diaper suction. Each suction period is not necessarily a continuous period of time, but according to the time distance from the beginning of the diaper suction and the state of the diaper inside the division of a may not be continuous, but the internal state of the diaper has a similar period.

In order to visually describe the initial stage, middle stage and later stage (long-term) of core diaper suction, a schematic diagram of a diaper suction cycle is drawn, as shown in Figure 1.

 

In the figure, the vertical axis represents the surface humidity of the diaper, and the horizontal axis represents the use time. When urine is injected, the moisture sensation on the surface of the diaper is the highest, and then the moisture sensation on the surface of the diaper is gradually reduced because the urine is absorbed by SAP. Finally, the moisture sensation on the surface of the diaper is stabilized at a low value. And as SAP gradually absorbs urine, the moisture on the surface of the diaper gradually decreases... The initial dry and refreshing of the diaper suction represents how fast the diaper can move from the initial moisture sensation to dry, and the medium dry and refreshing of the diaper suction represents what level the dry performance of the diaper is stable after the urine is sucked. When there is no next urine injection after the diaper absorbs urine for a long time, there is a long-term reosmosis after the diaper absorbs urine, or called the diaper late stage or long-term dry and refreshing.