Test method and solution of baby diaper softness

Abstract: relevant data show that since the national policy of second birth was released, about 20 million newborns are born every year in China, and nearly 40 million-2-year-old babies are using diapers Because the softness of diapers has a direct impact on the comfort of baby wearing, and plays a positive role in effectively avoiding diseases such as baby's O-leg and eczema, it is necessary for enterprises to detect the softness of diapers Taking the "zrd-t1 paper softness tester" independently developed by Jinan Saicheng as an example, this paper has carried out a special test on the softness of a brand of diapers Through the detailed record of the test principle, test process, test results and other data, it provides a reference direction and method for the majority of enterprises in need Key words: baby diapers, diapers, pull up pants, softness, softness tester, softness tester, paper softness tester As a disposable product, diapers are among the most important necessities for babies in recent years, and have successfully liberated parents from the era of tedious and repeated cleaning of diapers, which is a great social progress At present, most of the common diapers in the market are made of non-woven fabric, toilet paper, fluff pulp, high molecular absorbent resin, PE film, rubber band and other materials From the inside to the outside, there are three important parts: surface coating, absorption core layer and bottom cloth Baby skin is very delicate, a little care will lead to redness and swelling The diaper is a product that the baby should contact closely 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 will no doubt cut like a knife when wearing it Not only the skin is severely damaged, but also the baby's O-shaped leg and loop leg will be caused for a long time Therefore, softness has become one of the criteria for many parents to judge the quality of their diapers by means of touch, perception and other external ways If the enterprise wants to produce diapers that have a good effect after being put into the market and bring rich profits, softness is an indispensable indicator 2 Executive standard: at present, the state has not issued any unified test standard related to the softness of diapers, which is set by the enterprise itself Test sample the diaper of a certain brand (Note: the sample is provided by the customer of Ji'nan Saicheng) test equipment "ZRD - T1 paper softness instrument" independently developed by Ji'nan Saicheng has been in line with a number of national standards: GB/T8942 - 2002, QB/T1016, which can also meet the requirements of customers to test products according to different standards 4.1 test principle under specified conditions, when the plate probe of the softness meter presses the sample into a certain depth (about 8mm) in the crack, the sum of the bending resistance of the sample itself and the Zui large vector of friction force between the sample and the gap is called softness, which is expressed in millinewtons The smaller the softness value, the softer the sample is 4.2 application scope: tissue paper, toilet paper, diapers, wet tissue paper 4.3 technical parameters measurement range: 10-1000mn resolution: 0.01mn indication error: ± 1% (less than 20% of the upper limit value is allowed to exceed the specified range by 1MN) indication repeatability error: < 3% (less than 20% of the upper limit value is allowed to exceed the specified range by 1MN) total stroke of the probe: 12 ± 0.5mm Test head pressing depth: 8 ＋ 0.5mm test bench slit width (four gears): 5mm, 6.35mm, 10 mm, 20 mm, width dimension tolerance: ± 0.05mm test bench slit width parallelism error on both sides: ＜ 0.05mm test head to neutral error: ＜ 0.05mm motor model and specification: permanent magnet low speed synchronous motor 4R / min, 220V boundary dimension: 240mm (L) × 300mm (W) × 280mm (H) weight: 15kg 5 Test process * step: Test smoothness / roughness ts750 (smoothness / roughness), test sample surface fiber softness ts7 (real softness) step 2: Test stiffness D (stiffness) step 3: software calculates hand feel value HF 6 through measured parameter data, test result 1 HF (handfeel softness) The higher the value is, the softer it is 2 The lower the peak value of ts7, the higher the softness 3 The higher the peak value of ts750, the higher the roughness 7 Conclusion "zrd-t1 paper softness tester" With its imported high-precision force sensor, it has the advantages of more data, real-time display of force value and curve chart, automatic storage and output printing of results in the test of diaper softness, which greatly facilitates the operation of users and the analysis of results It is a professional high-precision instrument worthy of selection and trust of manufacturers In addition, in addition to softness, air permeability is also a necessary index for manufacturers to test their diapers As a modern high-tech enterprise integrating R & D, manufacturing, sales, training and service, Jinan Saicheng has developed nearly 100 kinds of instruments since its establishment for more than ten years, which can meet customers' different testing indicators for the same product at the same time and greatly improve the work efficiency For more questions about the instrument, please call Jinan Saicheng technology directly!