What is the principle of diaper urine display function?

The size must be suitable for the baby’s body shape. The size of diapers can be divided into 5 types: newborn, small, medium, large, and enlarged. Mommy must pay attention to whether it fits the baby’s body shape, especially the elastic grooves on the legs and waist. Too tight, otherwise it will strangle the baby’s skin. Remind Mommy that sometimes the size of diapers may not be exactly the same, and may vary with different manufacturers' brands. Mommy may wish to refer to the number marked on the outside of the package, or exchange it with a friend first. Choose more for your baby. You can use diapers with a concave belly button cut for your newborn baby to avoid infection of the navel.　　 Just comparing traditional diapers with paper diapers, in terms of air permeability, of course, traditional diapers are better and much better because they only have cloth and no water barrier. But it is very unfair to judge the pros and cons of the two by using such comparison results. Because when using traditional diapers, people usually use a layer of waterproof material on the outer layer of the diaper: absolutely airtight plastic paper. Therefore, we should compare the 'full version' of traditional diapers and diapers with this layer of no breathability at all. This is fair. (Good) Diapers are made of non-woven fabrics, lined with materials that only let air in and out, but not water molecules, so although the air permeability cannot be compared with pure cloth, but compared to the 'full version' traditional diapers, the air permeability can be It's much better. However, people often overlook the fairness of this contrast, leading to a one-sided leaning towards traditional diapers.　 What is the principle of the urine display function of diapers? At present, the more mainstream is hot-melt urine display glue technology and ink urine display technology. Hot-melt urine display glue: urine display glue is an organic combination of hot melt glue and a substance that is color-sensitive to pH. The urine display glue is coated on the side of the base film facing the core layer in the form of lines. When the urine soaks the core layer, it is conducted to the surface of the urine display glue, causing the pH value to change, resulting in a change in color and reaching the urine display Visual monitoring function. Previous post: Mom should gradually help the baby to quit night eating habits Next post: Small diapers make the baby more comfortable and free