Classification and performance of hydrophilic non-woven fabrics
As one of the raw materials of sanitary napkins, there are many types. The following describes the classification of the properties of hydrophilic non-woven fabrics.
Classified according to the hydrophilicity and hydrophobicity of non-woven fabrics:
Water-repellent non-woven fabrics: can not be used on the surface of sanitary napkins, but can be used on the sides of sanitary napkins (that is, wings). )
Hydrophilic non-woven fabric: It can be divided into one-time hydrophilic and multiple-time hydrophilic.
The hydrophilicity of the non-woven fabric is mainly determined by the oil agent of the fiber instant noodles. The different agents can be divided into single hydrophilic non-woven fabrics (that is, one-time hydrophilic), multi-hydrophilic non-woven fabrics (that is, multiple hydrophilic ones), and weakly hydrophilic non-woven fabrics.
Single hydrophilic non-woven fabric: For liquid penetration, the first penetration rate is relatively fast, and the subsequent liquid penetration rate gradually slows down.
Multi-hydrophilic non-woven fabric: It is widely used in sanitary napkin processing. Its product has good water absorption performance and strong liquid penetration ability. The second, and even the third, liquid breakthrough time is also very short.
Weakly hydrophilic non-woven fabrics: It is also a concept that has emerged in recent years. Its product features are that the vertical infiltration effect of liquid is better, the surface diffuses laterally, and it penetrates to the lower layer (diversion layer) to diffuse. (A lower layer material with strong diffusion properties is required), the amount of reverse osmosis is relatively low, and the surface is relatively dry. It also appears cleaner after suction due to its smaller surface area.
The development space of hydrophilic non-woven fabrics is huge. The non-woven fabrics on feminine sanitary napkins and baby diapers need to have hydrophilic properties, which means that water needs to be easily permeable. Non-woven fabrics have a huge demand for rigidity.
Performance:
Online non-woven hydrophilic finishing is a low-cost and high-efficiency method, which is characterized by reliable equipment, good product quality, simple operation and high productivity , Energy saving and noise reduction, full feel, uniform liquid application and constant tension.
The hydrophilic non-woven fabric produced has strong liquid adsorption capacity, is environmentally friendly and harmless to human body. In recent years, new products developed by hydrophilic non-woven fabrics have been gradually put into the market and have been welcomed by consumers.
Hydrophilic non-woven fabrics are moisture-proof, breathable, non-combustible, easy to decompose, inexpensive, and can be recycled. It can be naturally decomposed when placed outdoors for 90 days. It is odorless and non-toxic when burned, and there is no residue and no pollution to the environment. The strength is non-directional, and the vertical and horizontal strengths are similar. Widely used in medical, health, agriculture and other fields.
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