Comparison of the diffusion length of fluff pulp and composite core diapers with the actual baby

In order to compare the performance of different baby diapers, the laboratory has a variety of testing methods for diapers, and now more and more diaper manufacturers pay attention to U-type testing. In order to verify whether the laboratory U-type test is consistent with the actual diffusion length of the baby, Noel Bio has done a lot of experiments to verify.

This experiment uses Kao and the left and right angels to compare the two diapers. Kao is an international brand and is a traditional wood pulp structure. The left and right angels are the latest generation of core brands. The core of the structure is the use of Noel's diversion channel. The patent of the tank, combined with the specific polymer, has greatly improved the performance of the diaper, far exceeding the market diapers.

The U-shaped equipment diagram of the laboratory is as follows:

The laboratory test results show that the average diffusion length of Kao diapers is 25.6 cm, and the average diffusion length of the left and right angel diapers is 20.3 cm. The former is nearly 20% longer than the latter. Then the question comes: When the actual baby is used, will the spread length of the two diapers really differ so much?

In order to find the answer to the question, the Noel Bio-SAP Application Innovation Center organized a diaper trial. Tens of thousands of pieces of Kao and left and right angel diapers were distributed to nearly 100 school-age babies. The diffusion length of diapers and the distribution of urine in diapers were recovered and measured every day.

Here are some survey images:

The test results of the extracted partial diffusion length are shown in the following figure:

The average diffusion length of the Kao and the left and right angels was calculated by measuring the diffusion length of the diaper after the use of a large number of infants, the former being 28.6 cm and the latter being 29.1 cm, both of which were flat. In addition to the diffusion length, we weighed the urine diaper in an area of every five centimeters in the lateral direction and weighed the amount of urine in each area.

The distribution of urine in diapers is as follows:

To sum up:

1. The laboratory U-type test diffusion length, the composite core body is shorter than the fluff pulp structure diffusion, but after the infant use investigation, the diffusion length of the two is equivalent. This is because the laboratory U-type test is static, but in actual use, the baby is dynamic when worn, so the laboratory U-type test does not fully represent the actual use of the baby.

2, the distribution of baby urine in the diaper, the composite core and the fluff pulp diaper are similar, are concentrated in the middle of the front position. Therefore, in actual use, the conductive composite core of urine in the diaper is not worse than the structure of the fluff pulp. As long as the polymer, the surface layer and the structure are matched, it is possible to produce a diaper whose performance exceeds the international brand.