a knowledge of Air permeable film composite nonwoven fabric
DATE：2021/2/24 8:41:21 / READ： / SOURCE：This station
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There are many kinds of breathable film composite non-woven fabrics, which are widely used in agriculture, industry, construction and other fields. At present, China's waterproof breathable film, breathable non-woven industry is facing major development opportunities. In 2018, the industry output is about 273,400 tons. Enterprises should increase technical investment, rational use of resources, as soon as possible to make up for the lack of production technology and data supply, so as to win more market share in the waterproof breathable film market. Sanitary products are the largest market for SMS composite nonwovens, and the rapid development of SMS materials worldwide is a major factor in meeting the rapid growth and urgent demand for disposable sanitary products. Products in this category include women's sanitary pads, sanitary pads, baby diapers, adult incontinence products, and patient care pads, among which the greatest demand for SMS is for baby diapers. In developed countries such as Europe and America, the penetration rate of disposable sanitary products reaches 80%~90%, and the wide use of spunviscose cloth and SMS. In the field of medical and health care, in recent years, some large and medium-sized hospitals in large and medium-sized cities in China have started to use SMS surgical clothes, masks, surgical covers, protective clothing, ambulance suits, medical equipment covers and so on. However, the domestic understanding of SMS non-woven products is not enough, the application is still being popularized. With the continuous development of China's economy and the continuous improvement of the national health laws and regulations, the application of SMS non-woven products in the field of health care will have a rapid growth in the next 3~5 years. Air permeable film, non - woven thermal composite equipment handern.com
At present, the investment in the field of breathable film composite non-woven fabric is in the deceleration stage of the investment cycle, the market needs time to digest the production capacity formed by high-speed investment in the past few years. Industry investment is mainly based on the market demand, the update of advanced equipment and the increase of high-end capacity, to meet the green, environmental protection, high-performance and other high requirements, promote industrial transformation and upgrading and enhance international competitiveness. From the production and export of breathable film composite non-woven fabric, the growing market can absorb the rapid expansion of production capacity, the future development space is still large. It is expected that the future of the composite non-woven industry will be more concentrated. New capacity is more likely to be concentrated in existing areas, such as Shandong, Zhejiang, Guangdong and Jiangsu. These areas have begun to take shape, and enterprises can basically consciously comply with the national pollutant emission regulations, saving the cost of national supervision and management, so the industry's constant strength of the "Matthew effect" will be more obvious. Air permeable film, non - woven thermal composite equipment handern.comThe principle of permeable film is very simple: inorganic + stretch = microporous, in fact, the operation is very exquisite, only appropriate size, uniform distribution of microporous is effective. When the water vapor concentration on one side of the film is greater than that on the other side of the film, a humidity gradient pressure difference is formed. This provides the basic condition for the convection of gas (vapor) body, and the humidity environment on both sides of the film tends to be relatively balanced due to the formation of convection. Air permeable film, non - woven thermal composite equipment handern.com
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