Sanitary napkins have a shelf life. A normal adult woman can use one packet of sanitary napkins every month, 12 months a year, you can use about 12 packs of sanitary napkins, hoarding once is basically the amount of a year, more than 12 packs is not recommended for personal hoarding, although sanitary napkins are good, but do not greedy more!

This is a breathing valve, a one-way open valve. When inhaling, it will close; when exhaling, the internal pressure of the mask is greater than the external pressure of the mask, and the valve piece can open automatically. It helps to reduce exhalation resistance, discharge water and heat, and improve the comfort of wearing the mask.

The polymer of the diaper is an absorbent material. In fact, during the manufacturing process, the core needs to be cut off at both ends and then repacked to prevent the polymer from leaking. Because the polymer is light and there are air vents on the production line, when the ends are cut, the polymer is easily blown over or next to the laminate and the polymer is not visible to the naked eye if it is not stained with water. Babies will find the polymer on their bottoms after peeing and mistakenly think it is leaking. In fact, it stays on the surface all the time. This is a common phenomenon and if you find this, open it a few times before use. The polymer is a plant-derived substance that is harmless to babies and is certified by the state testing. Polymers are used in sanitary products and have a water-locking effect, dry and prevent the reproduction of many kinds of bacteria. We do not have to worry about this situation, this is a normal phenomenon in production, and generally rarely occurs.

Cotton is better. One is absorbent, the other is more hygienic, after all, it is a natural plant component that plays a role in taking care of the young baby's buttocks. However, no matter which material is used, it should be changed often, cleaned frequently and checked frequently so that adults are not busy with other things and leave the baby's skin soaked in feces, the baby will cry if he is uncomfortable and the baby's body parts will get infected. Careful care is the key to healthy infant growth. An infant will cry only when he is uncomfortable. However, anxious adults do not understand what is happening to the infant. They think it is because he is being naughty. This is not the case. He's fine if he's comfortable. Why is he crying? If you understand this, you can easily become a competent parent.

Generally speaking, the structure of adult diapers is divided into three layers from inside to outside, the inner layer is close to the skin and made of non-woven fabric; the middle layer is absorbent fleece pulp with polymer absorbent; and the outer layer is impermeable plastic film. Baby diapers are mainly composed of the following parts: outer cover layer, absorbent core layer and base cloth. The outer cover layer is mostly non-woven, and the absorbent core layer is mostly pure wood pulp. So there is a difference between the comfort of the two, whether from before or after absorbing water.

Since solutions with high osmotic pressure reduce the absorption capacity of the absorbent resin, which is known in the industry as poor salt resistance, the salt resistance of the absorbent resin can be improved by appropriate modifications.