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English Views: 0 Author: Site Editor Publish Time: 2024-12-12 Origin: Site
In the field of modern feminine hygiene care, sanitary napkins are extremely important products, and their market demand continues to grow and is moving towards high quality and high performance. PE film plays a pivotal role in the construction of sanitary napkins. Its application significantly improves the overall performance of sanitary napkins and provides a more reliable and comfortable solution for women's menstrual care.
PE film is mainly composed of polyethylene, and the chemical structure of polyethylene determines its good stability and plasticity. The arrangement of its molecular chains gives the material a certain degree of flexibility and strength. In addition, in order to improve its processing performance and performance, some additives are often added. For example, the addition of lubricants can reduce the surface friction coefficient of PE film, making it easier to process during the production process, and also making the sanitary napkin have a smoother touch when in use. Antistatic agents can effectively prevent static electricity generated by friction, avoid adsorption of impurities such as dust, and keep the sanitary napkin clean.
The thickness of PE film is usually within a certain range, generally thin but with sufficient strength. The thinner thickness helps to reduce the overall thickness and weight of the sanitary napkin, making the product lighter and easier to carry and use. Its softness is carefully designed to fit the curves of the human body gently and will not cause discomfort when in contact with the skin. In terms of tensile strength and toughness, PE film performs well. Even when pulled by a certain external force, such as various movements during the use of sanitary napkins, it can remain intact and not easily broken, thus effectively preventing leakage.
PE film has excellent barrier ability to liquids. The principle is that the molecular structure of polyethylene is closely arranged, forming a barrier to prevent liquid penetration. This barrier effect can be evaluated through rigorous tests, such as liquid penetration tests that simulate human menstrual blood. PE film can effectively lock liquid inside the sanitary napkin, ensuring that the surface of the sanitary napkin remains dry for a long time, greatly improving the user's comfort and hygiene experience.
As the bottom layer material of sanitary napkins, PE film plays a vital role in waterproofing and anti-leakage. It is like a solid line of defense to prevent liquid from penetrating into clothing. Compared with other possible materials, PE film has the advantages of high cost-effectiveness and stable waterproof performance. Its excellent anti-leakage performance can be intuitively seen through various waterproof tests, such as placing liquid containing simulated menstrual blood on a sanitary napkin with a PE film bottom layer and observing for a long time whether there is liquid seepage from the bottom. When used in combination with materials such as the absorbent core on the upper layer, the PE film can work with them to ensure the effective absorption and locking of the liquid and prevent the reverse leakage of the liquid.
PE film is used to wrap the core and other components of sanitary napkins, playing a comprehensive protective role. It can effectively isolate external pollutants such as dust and bacteria, and ensure the hygiene of sanitary napkins during production, transportation and storage. In terms of coating process, different designs and technologies will affect the appearance and ease of use of the product. For example, some PE film packages with easy-tear designs are convenient for women to open quickly when using them. At the same time, exquisite package printing can also enhance the overall aesthetics of the product, making it more attractive in market sales.
When the soft PE film contacts the skin, it brings a comfortable touch to the user and will not cause skin allergies or discomfort. At the same time, modern PE film also focuses on breathability in design. Although it needs to block liquids, it can allow air circulation to a certain extent through special microporous structures or material formula improvements, maintain normal breathing of the skin, reduce the feeling of stuffiness and humidity, and allow women to stay refreshed and comfortable during menstruation.
The PE film itself is non-toxic and harmless and meets strict hygiene standards. This is the basic premise for its application in sanitary napkins. It can effectively prevent bacterial growth and cross-infection. Due to its good barrier properties, it can isolate the absorbed menstrual blood from the external environment, prevent bacteria from multiplying and spreading in a humid environment, and provide important protection for women's reproductive health.
Whether in high temperature or high humidity environmental conditions, PE film can maintain relatively stable performance. In the hot summer, it will not deform or lose its barrier effect due to high temperature; in a humid environment, it will not absorb moisture and affect its strength and waterproof performance. This stability plays a reliable role in supporting the shape and structure of the sanitary napkin, ensuring that the sanitary napkin always maintains good shape and functional integrity during use.
PE film is usually produced by film blowing process. In this process, the polyethylene raw material is first heated and melted, then extruded through an extruder to form a tubular film, and then through a series of links such as cooling, traction, and winding, the desired PE film product is finally obtained. In the film blowing process, the parameter settings of key links such as temperature, extrusion speed, and traction ratio have a direct impact on the thickness, uniformity, and physical properties of the PE film. In addition, for PE films with printing and lamination requirements, it is also necessary to go through a printing process to print brand logos, patterns, etc. on the film surface, and then compound with other materials such as non-woven fabrics to meet the different functions and design requirements of sanitary napkins.
Thickness uniformity is one of the important indicators of PE film quality control. Through advanced testing equipment, such as thickness measuring instruments, the PE film in the production process is monitored in real time to ensure that its thickness is within the specified tolerance range. Once a thickness deviation is found, the production process parameters are adjusted in time. For physical performance indicators, such as tensile strength, tear strength, barrier properties, etc., regular sampling tests are required and strict evaluations are conducted according to relevant standards. In terms of sanitary quality, tests must be conducted according to strict microbial indicators to ensure that the number of microorganisms on the surface of the PE film meets the sanitary safety requirements and prevent the material itself from carrying bacteria and causing harm to the health of users.
With the continuous advancement of science and technology, the research and development of new functional PE films has become a hot spot in the industry. For example, the development of antibacterial PE films can effectively inhibit the growth and reproduction of bacteria on the surface of sanitary napkins by adding antibacterial agents to the material, further improving the hygienic safety of the product. In addition, the development of thinner PE films with excellent performance is also an important trend, which helps to create thinner and more comfortable sanitary napkin products to meet modern women's higher requirements for product quality and user experience.
Against the background of increasing global environmental awareness, research on degradable PE films has made significant progress. Biodegradable PE films can decompose into harmless substances after a certain period of time in the natural environment, reducing environmental pollution. However, currently degradable PE films still face some challenges in terms of cost, performance stability, etc., and require further research and technological breakthroughs. In addition, the recycling of PE films is also being explored. How to establish an effective recycling system and recycle and reprocess the PE films in discarded sanitary napkins is an important issue to achieve sustainable development.
In summary, PE film is of irreplaceable importance in the application of sanitary napkins. Its various excellent properties improve the performance of sanitary napkins in many aspects, providing comfortable, safe and hygienic guarantees for women's menstrual care. With the continuous innovation of technology and the promotion of environmental protection requirements, PE film will continue to develop and evolve in the field of sanitary napkins. We have reason to believe that in the future, PE film will pay more attention to environmental protection and sustainable development while meeting the needs of women, bringing new vitality and progress to the entire sanitary napkin industry. If you need PE film for sanitary napkin, Lonsun is a best choice. Lonsun - specialist in sanitary material solutions.
