High Water Pressure Waterproof Air Through Non Woven Fabtic And Production System

1.Waterproof air through non woven fabtic process

In the existing water-repellent non-woven fabric SMS, a water-repellent material is arranged between two layers of anti-sticking fibers, and then bonded by heat and pressure. The water-repellent non-woven fabric produced by this process has relatively high hardness and poor skin affinity, which will affect the comfort of the product when it is applied to the protective enclosure of diapers or sanitary napkins. During production, in order to reduce the hardness of the water-repellent non-woven fabric, small bumps are usually set on the surface of the heat-pressing roller, which makes the bonding of the fiber layer not tight enough, and at the same time produces a problem for the melt-blown layer with water-repellent function in the middle layer. Damaged, water-repellent non-woven fabrics have poor water pressure resistance.

In order to solve the above problems, the publication number CN205242013U provides a high water pressure resistant waterproof air through non woven fabtic: including the first fiber web, the second fiber web and the melt-blown layer, the melt-blown layer is located on the first fiber web and the second fiber web In between, the first fiber web, the second fiber web and the melt-blown layer are bonded by hot air. As a result, the multi-layer fiber web and the melt-blown layer are bonded by hot air, the fiber web can maintain porosity, and the softness and skin-friendliness of the water-repellent non-woven fabric can be improved. Hot air bonding is adopted, so that the fiber web and the melt-blown layer have a good bonding effect and the melt-blown layer will not be damaged, and the obtained water-repellent non-woven fabric has strong water pressure resistance.

2. Beneficial effects of waterproof air through non woven fabtic

Correspondingly, the scheme also provides a high water pressure resistant waterproof air through non woven fabtic production system, including a bale opener, an opener, a carding machine, a meltblown device and a hot air bonding mechanism, and the meltblown device is located between the carding machine and the Between the hot air bonding mechanism, the fibers pass through the bale opener, the opening machine, the carding machine, the meltblown device and the hot air bonding mechanism in sequence. Thus, the fibers are carded into multiple fiber webs by the carding machine, and the melt-blown device sprays the hot-melt material onto the fiber webs, and then enters the hot air bonding mechanism for bonding to form a high water pressure resistant waterproof air through non woven fabric. The multi-layer fiber web and the melt-blown layer are bonded by hot air, and the fiber web can maintain the porosity and improve the softness of the water-repellent non-woven fabric. Hot air bonding is adopted, so that the fiber web and the melt-blown layer have a good bonding effect and the melt-blown layer will not be damaged, and the obtained water-repellent non-woven fabric has strong water pressure resistance.

The beneficial effect of the scheme is: the fiber layer of the high water pressure-resistant waterproof air through non woven fabric is bonded with the melt-blown layer by hot air, the fiber web can maintain porosity, and the softness of the water-repellent non-woven fabric is improved. Hot air bonding is adopted, so that the fiber web and the melt-blown layer have a good bonding effect and the melt-blown layer will not be damaged, and the obtained water-repellent non-woven fabric has strong water pressure resistance. Moreover, the production system has a simple structure and is easy to operate, and the production method has simple steps.