Nowadays, sanitary napkins have become an integral part of women's lives. Careful selection of sanitary napkins has become a matter of course. Because the product is directly in contact with the skin of a female friend, the quality of sanitary napkin products directly affects the health of female friends. Therefore, the quality control and testing of sanitary napkin products has become one of the important inspection items that companies are concerned about. The GBT 8939-2008 National Standard for Sanitary Towels (including Sanitary Pads) provides more details on the inspection of sanitary napkins.
Testing product category
Test item/parameter
Test standard (method) name and number (including year code)
No.
name
sanitary napkin
1
deviation
Sanitary towel GB/T 8939-2008
2
Absorption capacity
Sanitary towel GB/T 8939-2008
3
Infiltration amount
Sanitary towel GB/T 8939-2008
4
pH
Sanitary towel GB/T 8939-2008
5
Moisture
Sanitary towel GB/T 8939-2008
"Determination of Moisture in Analytical Samples of Paper, Board, and Pulp" GB/T 462-2008
6
hygiene standard
Sanitary towel GB/T 8939-2008
Hygiene Standards for Disposable Sanitary Products GB 15979-2002
7
Adhesive strength
Sanitary towel GB/T 8939-2008
Hangzhou Pinshang Technology Co., Ltd. is a high-tech enterprise specializing in the manufacture of papermaking, packaging, and printing inspection equipment. It is a core business of laboratory testing equipment R&D and manufacturing and laboratory IT services. It is dedicated to making paper, packaging, and food. In the fields of medicine, medicine, daily chemical, printing, adhesives, automotive, petrochemical, biotechnology, construction and new energy, customers provide comprehensive and professional product quality risk control solutions.
Sanitary napkins are divided into three layers from the product structure: the first layer, mainly made of non-woven fabric or perforated film material, plays the role of penetration and isolation; the second layer is absorbent layer, made of fluff pulp or no Dust paper to complete the absorption, in order to make products have better absorption capacity, some products add polymer absorbent resin; the third layer is the bottom layer, the main material is polyethylene film (PE), to prevent leakage, back coating Hot melt adhesive, play a fixed role.
The product enjoys the R&D center engineers. Next, it will combine the gas pressure penetrator, moisture permeability tester, intelligent electronic tensile tester and other products to introduce the breathable water-blocking performance and adhesive strength of sanitary napkins. .
1. The permeability and moisture permeability of the underlying PE film:
The material of the bottom layer of the sanitary napkin is mainly a polyethylene film (PE film), which is used to prevent leakage; at the same time, the bottom layer must have certain air permeability, exclude hot air and moisture, and ensure the comfortable use of the product. The latest domestic pressure differential gas permeameter adopts the principle of differential pressure and adopts internationally-advanced accessories. It can be used for the permeability testing of the underlying PE membrane. The device is also designed with a single cavity, three cavity, and six cavity independent test cavity design. To meet the testing needs of the company for efficient testing. The moisture permeability of the underlying PE film can be measured by the moisture permeability tester. The principle of the weighing method is adopted. The computer-controlled automatic test is performed. The device has its own temperature control and humidity control function, and no manual intervention is required during the test so that the test process does not receive external signals. Impact, more accurate test results, fully meet the high barrier material moisture permeability testing requirements.
2, the bottom PE film adhesive peel strength test:
Adhesive viscosity is an important criterion for the quality of sanitary napkins. It is generally not believed that the greater the viscosity, the better. Excessive bond strength can damage the product and even the underwear. If it is too small, displacement will occur during use. The back-adhesive viscosity of the sanitary napkin, that is, the peel strength, can be tested by enjoying the PN-TT300 computer tensile testing machine. PN-TT300 computer tensile tester can meet the mechanical performance test of PE film materials on the one hand, such as: tensile strength and elongation test, tear strength and other testing items; on the other hand, it can be used to test PE film back adhesive peel strength. Rally machine is controlled by computer and equipped with professional software support. The test results can be statistically superposed and analyzed to facilitate the manufacturer to control the production process. At the same time, it can also test the tensile strength, tear strength and other properties of other materials such as non-woven fabrics.
　　 The above is a brief introduction to the barrier properties of sanitary napkins and the detection method of adhesive strength. Hangzhou Pinxiang launched a series of testing equipment for the quality control and testing of sanitary napkins.
We've already served many brand customers for fish feed Packaging Bag, like Big Bite, the zipper bag and Stand Up Pouch bag are popular types for fish food, the conventional design with zip closure or side gusset can much improve the usage of the packaging. Check out of our fish food bag selection the best Packaging Type for your fish food. Need any free samples or inquiry, you can just contact our sales.
Heat Seal Bag,Fish Feed Bag,Fish Feed Bag,Fish Food Packaging
ZHEJIANG GONFOR SOFT-PACKAGE CO.,LTD , https://www.chinasoftpackage.com