The surface layer is one of the main constituent materials of diapers, and it is also a very important part. The surface layer is in direct contact with the baby, so the comfort of the surface layer will directly affect the baby. Today, the editor will talk to you about two applications A wide range of diaper surface materials-the difference between hot air non-woven fabrics and spunbonded non-woven fabrics, and how to identify them.

Production principle

Hot-air non-woven fabric: It belongs to a kind of hot-air bonding (hot-rolled, hot-air) non-woven fabrics. Hot-air non-woven fabrics use hot air on drying equipment to penetrate the web after short fibers are carded to heat them. The resulting non-woven fabric can be bonded.

Spunbond non-woven fabric: After the polymer is extruded and stretched to form continuous filaments, the filaments are laid into a web, and the web is then bonded by itself, thermally bonded, chemically bonded or mechanically reinforced to make the web It becomes a non-woven fabric. Spunbond non-woven fabric is long fiber but its raw material is plastic chips.

Comparison of advantages and disadvantages
Hot air non-woven fabric: It has the characteristics of high bulkiness, good elasticity, soft hand feeling, strong warmth retention, good air permeability and water permeability. But its strength is low and it is easy to deform.
Spunbond non-woven fabric: It does not use fiber, is directly spun into a web from polymer particles, and is heated and pressurized by rollers. It has excellent mechanical properties, excellent tensile strength, elongation at break, tear strength and other indicators. , The thickness is very thin, but the softness and air permeability are not as good as the hot air non-woven fabric.
Therefore, the surface layer of good diapers is made of hot-air non-woven fabrics. Spunbond non-woven fabrics are mainly used in the manufacture of medical and health care. However, many diaper manufacturers choose to use spunbonded non-woven fabrics in order to save costs. cloth.

How to distinguish between hot air non-woven fabric and spunbond non-woven fabric?

1. The difference in feel
The most direct way is to touch with your hands. Hot-air non-woven diapers will feel softer and more comfortable to the touch, while spunbond non-woven fabrics will feel harder to the touch.

2. Gently pull
Get the diaper and gently pull the surface layer of the diaper. The hot-air non-woven fabric can easily pull out the silk. If it is a spunbonded non-woven fabric, it is difficult to pull out the whole piece of silk. In fact, no matter how you say it, it is uncomfortable and uncomfortable for your baby to wear diapers. Mom knows by comparing her experience with sanitary napkins. Therefore, when mothers choose diapers for their babies, they must choose soft and comfortable ones, so that the baby’s comfort will be improved.