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Test of Longitudinal Diffusion Length of Guide Layer of Pull-ups

The baby grows up day by day, especially when he begins to learn to crawl. After walking, the amount of activity increases gradually. pull-ups your pants Baby underpants As the baby's just need, training pants make it easier for the baby to move after wearing, and also make the baby's parents more worry-free and trouble-free and set aside more energy to play with the baby. However, due to the increased activity of infants, there are further requirements for liquid suction. As its component, the diversion layer plays an important role in improving the liquid absorption rate. The following is an experiment with the theme of diversion layer diffusion, which aims to test the influence of different components of materials on the degree of diffusion.

Brief introduction to the guide layer of pull-ups

The diversion layer is located between the surface layer and the absorption core layer. Its function is to guide the liquid vertically and evenly to the absorption core layer to improve the absorption rate of the core layer. Therefore, the longitudinal diffusion distance of liquid in the guide layer is an important factor to measure the performance of the guide layer. The guide layer is divided into nonwoven guide layer and perforated film guide layer. The nonwoven guide layer is divided into single layer and double layer. At present, many pants layers in the market still use single-layer hot air nonwovens. Some products do not have a guide layer, but only a film wrapped core layer.

Test of longitudinal diffusion length of guide layer of pull-ups

In this experiment, there are three kinds of diversion layer samples with diversion layer and the other three kinds without diversion layer. Through this arrangement, the comparative experiment is carried out. Carry out five experiments on the three samples with diversion layer in the sample, test the longest longitudinal distance, and take the average value respectively.

The longer the longitudinal diffusion length, the greater the liquid diversion effect of the diversion layer. According to the test, the longitudinal diffusion length of the diversion layer is 5#> 6#> 1#. The longitudinal diffusion length of the diversion layer is affected by the material and surface shape design of the diversion layer. The samples 5#, 6#, 1# are made of PE hot air nonwovens, and the guide layer mainly guides the liquid to flow to the core layer. Therefore, when the material difference of the diversion layer is small, the experimental results are greatly affected by the surface shape design of the diversion layer. The longitudinal diffusion length of the sample 5# guide layer is the largest, because the surface of the 5# guide layer is designed with longitudinal lines, which can guide the liquid to quickly diffuse to the core. In addition, the length of the sample 5# guide layer is short, which is equipped in the front and middle of the core layer, which is in line with infant ergonomics, can quickly guide urine and make full use of the core layer. The length of the sample 6# diversion layer is short, and the middle part of the pants is equipped with a mesh structure on the surface. Compared with the samples 5# and 6# respectively, the longitudinal diffusion length of the sample 1# diversion layer is slightly lower, because the length of the sample 1# diversion layer is consistent with the length of the surface layer, the surface is an ordinary network structure, and there is no special design for diversion.

From the above test results, it is not difficult to find that although the important role of materials on the diversion layer is indisputable, when the difference between materials is small, the design of surface morphology has become the most influential factor. This also gives many manufacturers an enlightenment. The design of pull-ups, baby underwear and training pants is not arbitrary or attractive, but should be designed on the premise of giving full play to the diffusion effect of the diversion layer.


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