Abstract : Relevant information shows that since the national second-child policy was liberalized, about 20 million newborns were born each year in China, and nearly 40-year-old babies were using diapers. Because the softness of the diaper directly affects the comfort of the baby, and plays an active role in effectively preventing the baby's O-legs, eczema and other diseases, it is necessary for the company to check its softness.
This article takes Jinan Saicheng's self-developed " ZRD-T1 paper softness meter " as an example, and carries out a special test on the softness of a brand of diapers. Through detailed records of the test principle, test process and test results, The vast majority of companies in need provide directions and methods for reference.
Keywords : infant diapers, diapers, trousers, softness, softness tester, softness tester, paper softness tester
- Test purpose
As a kind of product that can be abandoned after one use, diapers have been listed as a must-have item for the baby in recent years, and have successfully released their parents from the tedious era of repeated cleaning of diapers. A big step forward. At present, most of the diapers commonly used in the market are made of non-woven fabrics, toilet paper, fluff pulp, polymer water-absorbent resin, PE film, rubber band, etc., from the inside to the outside, there are surface coating layers, absorbent core layers, Three important components of the base fabric.
Infants and young children's skin is very delicate, and a little carelessness will cause redness and swelling. The diaper is a product that the baby should intimately contact every day. The softness of the diaper will directly affect the comfort of the baby's skin. Once the material of the diaper is too hard and rough, the baby is undoubtedly cut with the knife, not only the skin is serious. Damaged, time will also cause the baby's O-legs, legs and legs. Therefore, softness has become one of the criteria for many parents to judge the quality of their diapers by means of external methods such as touch and perception, and the diapers that the company wants to produce have achieved good results after being put on the market, bringing rich benefits and softness. Degree is an indispensable measure.
2 , the implementation of standards
At present, the country has not issued any uniform testing standards related to the softness of diapers, and the company has set its own.
- Test sample
A brand of diapers ( Note: This sample is provided by customers of Jinan Saicheng )
- Testing Equipment
The ZRD-T1 Paper Softness Tester independently developed by Jinan Saicheng has met many national standards: GB/T8942—2002, QB/T1016, and can simultaneously meet the requirements of customers for testing according to different standards.
4.1 Detection principle
Under the specified conditions, when the softness meter-shaped probe presses the sample into a certain depth (about 8mm) in the nip, the sum of the bending resistance of the sample itself and the large friction vector of the friction between the sample and the gap is called For softness, expressed in millinewtons, the smaller the softness value, the softer the sample.
4.2 Application range
Tissue paper, toilet paper, diapers, wet tissue
4.3 technical parameters
Measuring range: 10~1000mN
Resolution: 0.01mN
Indication error: ±1% (20% or less of the upper limit of the measurement is allowed to exceed the specified range of 1mN)
Indication repeatability error: <3% (20% or less of the upper limit of the measurement is allowed to exceed the specified range of 1 mN)
Total probe travel: 12±0.5mm
Probe penetration depth: 8+0.5mm
Sample table slit width (fourth gear): 5mm, 6.35 mm, 10 mm, 20 mm,
Width tolerance: ±0.05mm
Parallel error of both sides of the slit width of the sample table: ≤0.05mm
Neutral error of the probe: ≤0.05mm
Motor model specification: permanent magnet low speed synchronous motor 4r/min, 220V
Dimensions: 240mm (L) × 300mm (W) × 280mm (H)
Weight: 15kg
5 , the testing process
*Step: Test smoothness/roughness TS750 (Smoothness/Roughness), test sample surface softness TS7 (Real Softness)
Step 2: Test the stiffness D (Stiffness)
The third step: the software calculates the hand value HF through the measured parameter data.
6 , test results
1.HF ( handfeel softness) The test of the three values ​​is summarized. The higher the value, the softer it is.
2. TS7 ( softness of Softness fiber) The lower the peak value, the higher the softness.
3. TS750 (Roughness Plane Roughness) The higher the peak value, the larger the surface roughness.
7 , conclusion
" ZRD-T1 Paper Softness Meter " has the advantages of more accurate data, real-time display of force value and graph, automatic storage of output and printing, etc. by virtue of its imported high-precision load cell. It is convenient for the user's operation and analysis of the results. It is a professional high-precision instrument that the manufacturer deserves to choose and trust.
In addition, in addition to softness, breathability is also an indicator that manufacturers must measure for their diapers. Jinan Saicheng is a modern high-tech enterprise integrating R&D, manufacturing, sales, training and service. Since its establishment more than ten years ago, it has developed nearly one hundred instruments, which can simultaneously meet the different testing indicators of customers for the same product. Improve work efficiency. For more questions about the instrument, please call Jinan Saicheng Technology directly!
Puyang Linshi Medical Supplies Co., Ltd. , https://www.linshihealths.com