Baby diapers revealed! How is urine absorbed?
Such a thin layer of diapers can digest and absorb the urine volume of the baby's multiple urinations, and no matter how the baby's butt is squeezed into shape, the urine is not easy to leak out. Mothers are very curious, how exactly do diapers absorb baby’s urine? I think the super-wide water absorption and moisturizing ability of diapers are due to its absorbent material and design. Mothers are so innocent that the baby's diapers are filled with cotton wool, which absorbs moisture. Although cotton wool absorbs moisture, its moisture absorption rate and moisturizing ability are far inferior to the new polymer material water-absorbing resin. Macromolecule material water-absorbing resin (commonly known as Sap) is this typical functional fiber material. Sap-shaped beads, with a diameter of only about 0.3 mm, can digest and absorb water hundreds or even thousands of times its own net weight, and have a strong moisturizing ability, so it is also called a strong water absorbent Or high lock powder. Knowing the key moisture-absorbing chemical substances in diapers, how is the whole process of the baby’s urine from being excreted from the body to being digested and absorbed by the diaper? Don’t look at the diaper, it can only be a thin piece, there are a total of them inside. 4th floor. Surface: Made of non-proof cloth, it immediately touches the baby's skin, receives the liquid and transmits it to the lower layer. Transmission layer: It is made of non-proof cloth, which evenly transmits the liquid received in the surface layer to the digestion and absorption layer. Digestion and absorption layer: It is made of polymer material water-absorbing resin mixed with plush chemical fiber to digest, absorb and store urine. The bottom layer: made of pE film or pE film + non-proof cloth, the key function is to stop leakage. I have to admit that the sponge is very absorbing, but the sponge that has been washed with water is slightly squeezed into shape, and the water will leak out. However, diapers are not easy to have urine reverse osmosis on the surface, regardless of how small butt is squeezed. How exactly do babies' diapers lock in moisture? The moisture-absorbing chemical Sap of diapers is this kind of polymer compound, which is connected to many molecules that can be in close contact with water. Oxygen molecules are very easily attracted to its molecular structure, squeezed in the middle of the molecular structure, and then the Sap particles are enlarged and integrated. Sap does not dissolve water by itself, and can absorb moisture up to hundreds to thousands of times its own net weight without being easy to exudate. Specifically, the rice is blanched with water and matured rice. Although the rice grains contain a lot of water, the water does not flow out easily. The wheat flour and water are rubbed into a batter, and the water inside will not squeeze the batter anyway. Get out. Similar to rice kneading, Sap not only has strong water absorption, but also has strong moisturizing ability. For more information, please visit the official website: Next article: How often do I need to change a baby’s diapers?