Spun-bonded non-woven fabric technology has always been to improve the ability of the production line and solve the problems of uniformity, covering, rough hand feel, etc., to improve the strength, softness, uniformity and comfort, moisture absorption of Spun-bonded non-woven fabric performance, etc.The important reason for the rapid development of the spunbond method is that it uses synthetic polymers as raw materials. This method uses the principle of chemical fiber spinning. In the process of polymer spinning, continuous filaments are directly bonded after spinning. Non-woven fabrics, the manufacturing method is very simple and fast. Compared with dry non-woven fabric processing technology, it saves a series of tedious intermediate processes such as fiber curling, cutting, packaging, transportation, mixing and carding. The most significant effect of mass production is that spunbond products can be reduced in cost, stable in quality, and highly competitive in the market. They can enter the market fields of textiles, paper and films in various applications of disposable and durability. Secondly, since spunbond nonwovens use a lot of polypropylene as the main raw material, it has many advantages in terms of price, processing process, production cost, etc., which also greatly promotes the sustainable development of the spunbond nonwoven industry. In addition, Spun-bonded non-woven fabric products have excellent mechanical properties, and their tensile strength, elongation at break, tear strength and other indicators are better than dry, wet, and meltblown nonwovens. The rapid development of production line scale, technology and equipment and product market development has greatly expanded the application field of spunbond non-woven fabrics.The biggest difference between the production process of spunbonding and chemical fiber spinning is the use of air drafting and direct web formation. Therefore, the drafting of spunbonding has become a core technical problem. In the past, mechanical drafting was used. Thicker and unevenly laid. Spunbond production equipment all over the world has adopted air drafting technology. Due to different air drafting methods, there are three different forms of spunbond production line, namely tubular drafting, wide slit drafting, narrow slit drafting, etc. .Anhui Xiangshuo Nonwovens Technology Co., Ltd. is located in Wushan Town, Changfeng County, Hefei, Anhui Province, close to Jiangsu, Zhejiang and Shanghai, with convenient transportation, covering an area of 42 acres. The company was established in July 2019 with a registered capital of 10 million yuan. Committed to the development and production of environmentally friendly non-woven consumables, it is an emerging production enterprise with complete equipment and strong technical force. It has been rated as a key investment attraction enterprise in Xinqiao Industrial Zone, Hefei City. The company currently has PP non-woven and polypropylene Spun-bonded non-woven fabric production lines, with a width of 1.8m-3.2m and a gram weight of 9-250g/m. The products are green and environmentally friendly products with the characteristics of flame retardant, anti-aging, anti-static, acid and alkali resistance, non-toxic, pollution-free and degradable. The main business scope of our company: research and development, production and sales of non-woven fabrics, non-woven products and new non-woven materials; manufacturing and sales of chemical fiber equipment and non-woven equipment; research and development, production and sales of plastic masterbatch functional masterbatch; outdoor R&D, production and sales of supplies; R&D, production and sales of PE woven tarpaulins, furniture covers, plastic nets, trash cans, and plastic greenhouses.

Nature has inspired people to prepare various biomimetic structures. The excellent strength and toughness of natural spider silk are mainly due to its special hierarchical structure, such as β-sheet cross-linking points, helical nanoassemblies with highly arranged molecular chains, and rigid sheath-soft core, etc. Many researchers have achieved better man-made fiber properties by simulating these properties, however, how to make clever use of the spinning process to simultaneously achieve the above-mentioned hierarchical structure features is still challenging.Recently, the research team of Liu Zunfeng from Nankai University, Zhou Xiang from China Pharmaceutical University and Zhu Meifang from Donghua University, inspired by the structure of spider silk protein, prepared a soluble cross-linked nanogel and spun it with a spider silk-like layer. Structured cross-linked fibers provide a new strategy for direct spinning of high-strength and high-tenacity fiber materials.The β-sheets in spider silk proteins act as cross-linking points, and the cross-linked network is located within the nanometer-sized globular protein. Therefore, spidroin is soluble and can be directly spun into layered fibers by self-assembly. Inspired by the spider silk structure and spinning process, the researchers prepared soluble nanogels with an internal cross-linked network, and prepared nanogels suitable for different monomers by controlling the concentration of the cross-linking agent during the free radical polymerization process. When the content of cross-linking agent increased from 0.15% to 1.05%, the diameter and aggregation amount of the nanogel macromolecules gradually increased.To study the relationship between the stretch-spinning ability of the nanogels and the particle size, the researchers spun the fibers on a mechanical tester until the fibers broke, while measuring the mechanical stress. The theoretical model predicts that the critical stress leading to nanogel fracture is inversely proportional to the square root of the nanoparticle radius.To further investigate whether the size and arrangement of nanocomponents can be tuned by adding nucleating particles to improve the mechanical properties of fibers, the researchers prepared single-walled carbon nanotubes/polydopamine (SWNT-PDA) composites and synthesized them in SWNT-PDA. Nanogels with a crosslinker content of 0.15% were synthesized in the presence of 0.15% crosslinkers, and the effects of the introduction of nucleating particles on the nanogel fiber structure and properties were subsequently investigated. The results showed that with the increase of SWNT-PDA content, the breaking strength, breaking strain and toughness of the nanogel fibers showed an upward trend, and the nanocomponents were arranged more neatly and the average diameter decreased.By pre-stretching the fibers, the arrangement of molecular chains is significantly increased and the average fiber diameter is decreased. For fibers with a pre-tension strain of 50%, this structural evolution significantly increases the fiber's mechanical strength and reduces its elongation at break. After further twisting optimization, a combination of fiber breaking strength of 1.27GPa and toughness of 383MJ/m3 was finally achieved, which is very close to the performance value of natural spider silk.

In daily life, is the mask we often wear? Is it made of PP non -woven fabric? What is PP non -woven fabric?PP non -woven fabrics can be used to make masks, but not all masks are made of non -woven fabrics. Non -woven fabrics are also called non -woven fabrics, that is, fabrics without weaving or textiles. It is not in the traditional sense of the yarn to be intertwined and compiled, but the fabric formed by the fiber through physical methods.PP non -woven fabrics production process1. Comb the fiber2. Fiber formation3. Fiber of fiber network4. Perform heat treatment5. Finally organize processingIn industrial materials, because non -woven fabrics have high filtration efficiency, insulation, insulation, acid resistance, alkali resistance, tear resistance, etc., they are mostly used to make filtering media, sound insulation, electrical insulation, packaging, roof and grinding materials, etc. product.In the daily necessities industry, PP non -woven fabrics can be used as clothing lining materials, curtains, wall -faced decorative materials, diapers, travel bags, etc.In medical and health products, it can be used for production clothes, diseased clothing, masks, sanitary bands, etc.Anhui Xiangshuo Non -Weaving Cloth Technology Co., Ltd. is located in Wushan Town, Changfeng County, Hefei, Anhui Province. It is close to Jiangsu, Zhejiang and Shanghai, and has a convenient transportation. It covers an area of 42 acres. The company was established in July 2019 with a registered capital of 10 million yuan. Deliven the development and production of environmentally friendly non -woven consumables, it is an emerging production enterprise with complete equipment and strong technical force. It is rated as a key investment promotion enterprise in Xinqiao Industrial Zone in Hefei. The company currently has PP non -woven fabrics and pallonic spinning non -woven production lines, with a width of 1.8 meters to 3.2 meters and a weight of 9-250g/m. The product has green environmental protection products with flame retardant, anti -aging, anti -static, acid alkali resistance, non -toxic, non -pollution, and degradable features. Our company's main business scope: non -woven, non -woven products, non -woven fabric new materials research and development, production and sales; manufacturing and sales of chemical fiber equipment, non -woven fabric equipment; Research and development, production and sales of supplies; PE woven tunnels, furniture hoods, plastic networks, trash cans, plastic flower houses research and development, production and sales.We always adhere to the principle of "survival with quality and development of integrity", further improve the level of corporate management, achieve corporate development goals, and strive to become a continuous leader in the industry.