The surface layer is one of the main components of diapers, and it is also a very important part. It comes into direct contact with the baby’s delicate skin, so the comfort of the surface layer directly affects the baby’s wearing experience. The common materials for the surface layer of diapers on the market are hot air non-woven fabric and spunbond non-woven fabric.
Hot air non-woven fabric
Belonging to a type of hot air bonded (hot rolled, hot air) non-woven fabric, hot air non-woven fabric is a non-woven fabric that is formed by bonding short fibers through the fiber mesh using hot air from the drying equipment after combing them. It has the characteristics of high fluffiness, good elasticity, soft touch, strong warmth retention, good breathability and water permeability, but its strength is reduced and it is more prone to deformation.
Spunbond non-woven fabric
It is made by directly spraying polymer particles into a mesh without using fibers, and then heating and pressurizing it with rollers, resulting in excellent mechanical properties. The indicators such as tensile strength, elongation at break, and tear strength are all excellent, and the thickness is very thin. However, the softness and breathability are not as good as hot air non-woven fabrics.
How to distinguish between hot air non-woven fabric and spunbond non-woven fabric?
Difference in hand feel
Touching with your hands, the softer and more comfortable ones are hot air non-woven diapers, while the harder ones are spunbond non-woven diapers.
Pull test
Gently pulling on the surface of the diaper, hot air non-woven fabric can easily pull out the thread, while spunbond non-woven fabric is difficult to pull out the thread.
It is reported that in order to timely dissipate the stuffy and humid air generated by babies wearing diapers, ultra-fine fiber hot air non-woven fabric technology is adopted, which can provide better ventilation and effectively alleviate the stuffy and humid environment of baby’s farts, greatly reducing the possibility of red farts. At the same time, the base film has a softer feel and is more skin friendly to babies.
The sweat glands and sweat holes on the baby’s skin are very small, making it difficult to control the temperature of the skin well. If the breathability of diapers is poor, heat and moisture will accumulate in the diapers after urine is absorbed, which can easily cause the baby to feel stuffy and hot, and may lead to redness, swelling, inflammation, and diaper rash!
From a professional perspective, the breathability of diapers actually refers to their water vapor permeability. The bottom film is the main influencing factor on the breathability of diapers, and the hot air non-woven fabric material utilizes water droplets (minimum diameter 20 μ m) And water vapor molecules (diameter 0.0004) μ m) The difference is achieved to achieve waterproof and breathable effects.
Dongguan Liansheng Nonwoven Fabric Co., Ltd., a manufacturer of non-woven fabrics and non-woven fabrics, is worthy of your trust!
Post time: Apr-28-2024