Introduction: with the expansion of the infant market, more and more enterprises pay attention to the baby diaper industry. But this has also brought many cottage workshops. In order to be greedy for profits, they do not hesitate to produce inferior baby diapers, which has brought great harm to the market. Causing people to panic. Today, we will discuss the factors that can affect its performance.
Multi lipophilic fiber is close to the national standard of baby diapers prepared by single lipophilic fiber, but the secondary liquid solution prepared by multi lipophilic fiber has short penetration time, fast penetration speed, low permeability and fast diffusion length. Due to the difference of hydrophilic properties of fibers, the first penetration rate of lipophilic fiber products is fast, and the second penetration rate is slow; The first and second penetration rates of lipophilic fiber products are normal. Therefore, the secondary liquid addition of monooleophilic fiber baby diapers is not easy to infiltrate. The liquid is easy to accumulate in the pores of the hot-air fiber surface layer and cannot be absorbed by the core in time. As a result, the liquid stored in the surface layer of the surface layer rapidly precipitates out of the surface under a certain pressure, resulting in a large amount of reinjection in a short time and a long time, and a shorter diffusion length.
Reducing the fiber linear density within a certain range can increase the porosity of nonwovens. When the fiber linear density decreases beyond a certain range, the porosity of nonwovens will decrease. The tight accumulation between fibers greatly reduces the gap and increases the resistance of liquid diffusion to the deep layer, especially the compactness of the surface, which makes the solution not easy to seep out and the surface tension of nonwovens increases sharply. Therefore, when the fiber linear density decreases to 0.13 tex, the reverse infiltration and back infiltration increase significantly. Under the action of capillary between fibers, liquid absorption infiltrates into the lower layer and is finally absorbed by the core. Because the density of the fiber line is too small and the pores between the fibers are too small, the liquid can not penetrate and absorb in time, and too much liquid residue accumulates on the surface of the nonwovens. The liquid is easy to precipitate and reverse osmosis under a certain external pressure. As a surface material, it needs to be in direct contact with the baby's skin and has high requirements for hand feeling, so it does not use too thick fibers for comparison.
The solution penetrates through the fiber capillary and water pressure forces the water molecules through the fabric gap. In the vertical fiber arrangement, the nonwovens have conductivity, and the solution is easier to penetrate along the fiber direction, thus reducing the possibility that it cannot penetrate due to small pores or more water accumulated in pores.
The main property of diaper surface is conductivity rather than liquid absorption. When the fabric thickness decreases, the accumulation between fibers will be closer, which greatly reduces the gap inside the fabric. The resistance of liquid diffusion to deep layer increases. In the process of capillary or hydraulic infiltration, more folding and infiltration resistance will be encountered, resulting in increased infiltration time, slow infiltration, high reverse infiltration and short diffusion length.
Only by focusing on the performance of baby diapers, promoting the continuous innovation of products and putting children's experience first is the foundation of the continuous growth of the brand.
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