Hot Air Non-woven VS Spunbonded Non-woven

It is understood that a group of diaper survey data shows that 20.47% of users are very concerned about the air permeability of baby diapers when they buy them. Baby skin sweat glands sweat hole is very small, can not well control the temperature of the skin, such as diapers air permeability is not good, urine is absorbed, heat and moisture are gathered in diapers, easy to make the baby stuffy, and may make small butt inflamed, inflamed, leading to diaper rash

Because urine is produced, the inside of the diaper is a hot and humid environment. Therefore, from a professional point of view, the so-called air permeability actually refers to the water vapor permeability, which can be expressed by the water vapor permeability (g/cm2·24h). The bottom film, namely the outermost layer of diapers, is usually the main factor affecting the air permeability of diapers, and it is also a layer that needs to contact the baby's skin as well as the skin-friendly layer. The non-woven material used in the bottom film makes use of water droplets (minimum fog droplet diameter of 20μm) and water vapor molecules (diameter 0.0004μm), to achieve the role of waterproof and breathable.

The surface layer is one of the main components of baby diapers, is also a very important part, the surface layer and the baby direct contact, so the comfort of the surface layer will also directly affect the baby

The surface layer is the part directly in contact with the human skin, so it is required to have the characteristics of dry comfort and softness. In the process of using diapers, urine needs to quickly pass through the surface layer, so the surface layer needs to have good hydrophilicity, and can be penetrated for many times, and less infiltration. At present, the surface layer of nappies on the market mainly uses spunbonded and hot air nonwovens. Ten years ago, 80% of the surface layer of nappies used spunbonded nonwovens. In recent years, people's pursuit of the softness and comfort of nappies has become more and more intense. Hot air nonwovens are more and more used in the surface layer because of their fluffy and soft characteristics. Spunbonded nonwovens have high strength, good water absorption performance, dry and comfortable, and are still one of the main surface materials. Through the improvement of the formula and the transformation of equipment, the softness of spunbonded nonwovens is greatly improved, but the fluffy feeling is still not as good as hot air nonwovens. Multiple penetration speed, dry, soft, cotton feeling is the development trend of surface layer

In general, hot air non-woven soft and comfortable, spunbonded non-woven comfortable and dry, each has its own advantages, depending on the choice of the market