Non-woven fabric (PP non-woven fabric) 2020/11/27

Polypropylene (PP) non-woven fabric (or PP non-woven fabric) is a new type of fiber structure product with soft, breathable and flat structure. It has short process flow, high production efficiency, significant economic benefits, rich product variety and application range Wide and other characteristics. The raw material used for PP non-woven fabric is polypropylene fiber (PP fiber), which is the most total fiber in non-woven fabric production. Compared with other fibers, PP fiber has lighter specific gravity, higher strength, better abrasion resistance, good elastic recovery, no ball, acid and alkali resistance, chemical resistance is better than most other fibers, and has good antimicrobial performance. Not moldy or moth etc. PP non-woven fabric Chinese non-woven fabric technology began to develop rapidly in the 1980s and has become an emerging industry in China’s textile industry. Products are widely used in filtration, medical treatment, sanitation, health care, industry, agriculture, civil engineering, construction, and households. Decoration and various areas of life.Anhui Xiangshuo Nonwoven Technology Co., Ltd.'s main experience scope: R&D, 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; plastic masterbatch functional masterbatch R&D, production and sales; R&D, production and sales of outdoor products; R&D, production and sales of PE woven tarpaulins, furniture covers, plastic nets, trash cans, and plastic houses.If you need household non-woven fabric related needs, you can contact us, if you want to know more information about our company, please contact: Mr. Xiang, mobile phone number: 18955130444, address: Xinqiao International Industry, Shou County, Huainan City, Anhui Province Room 210, Building 6, Park Public Rental, Website: http://www.xsfzzb.com......

How do PP non-woven bags resist aging? 2020/11/27

Speaking of the specific application of PP non-woven fabrics, we have to say non-woven bags. PP non-woven bags are the most familiar daily necessities. Whether it is shopping mall promotion, street product promotion, or industry conference kits, etc., you can see non-woven bags.But the biggest disadvantage of PP non-woven bags is that they cannot withstand long-term sunlight. The general PP non-woven bags will fade after a month or two on the balcony, and even the heavy things will break, often giving people an inherent impression of not being durable.In fact, as long as a little bit of anti-aging masterbatch (LS-133WP) is added in the production of non-woven fabrics, and the cost increases a little, this kind of non-woven bags can be used for several years, and there will be more products printed on the bags. Several times the opportunity for publicity.Anhui Xiangshuo Nonwoven Technology Co., Ltd.'s main experience scope: R&D, 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; plastic masterbatch functional masterbatch R&D, production and sales; R&D, production and sales of outdoor products; R&D, production and sales of PE woven tarpaulins, furniture covers, plastic nets, trash cans, and plastic houses.If you need household non-woven fabric related needs, you can contact us, if you want to know more information about our company, please contact: Mr. Xiang, mobile phone number: 18955130444, address: Xinqiao International Industry, Shou County, Huainan City, Anhui Province Room 210, Building 6, Park Public Rental, Website: http://www.xsfzzb.com......

Treatment of abnormal condit 2020/11/27

1. If the cloth is still not soft at the recommended relatively high temperature, there may be a problem with temperature sensing or temperature control, so directly continue to increase the temperature until the cloth is in a soft state;2. If the wind pressure is below 0.2Mpa and the die temperature is near or below 210°C, there will be a phenomenon of flying. The melt finger of the meltblown PP material may be abnormal, or the temperature induction may be abnormal, the wind pressure display is abnormal, or the air duct tuyere size If the angle is abnormal, you need to contact the equipment manufacturer or raw material manufacturer to eliminate the abnormality;3. It is recommended to use low temperature materials for large equipment and medium and high temperature materials for small equipment;4. Generally, when the temperature is very high, the cloth is still not soft, or it starts to become brittle, and then the temperature is further increased, and the cloth starts to become soft. Generally speaking, there is a problem with the equipment itself. It is recommended to contact the equipment manufacturer, or the material is of serious quality problem;5. The addition of electret masterbatch generally needs to be matched by adjusting appropriate process parameters. Different electret masterbatches have different corresponding process parameters, and can be adjusted to the best state according to this rapid adjustment process. Compare performance again;6. The greater the amount of electret masterbatch added, the better the electrostatic effect, but the greater the impact on the fabric, it needs to be balanced, and the premise is to make the fabric well.......

Debugging method for 2020/11/27

In the production process of meltblown non-woven fabrics, because the parameter ratio of temperature, air pressure, mold, speed and other aspects are involved, continuous running-in and debugging are required to achieve the best results.1: Tuning process1. Under the condition of higher temperature and wind pressure, make the cloth softer;2. Slowly lower the die temperature and the hot air temperature in turn until the cloth just looks a little hard;3. Record the die temperature and screw temperature at this time;4. Adjust the wind pressure, the amount of melt extrusion, and the distance of the net to make the cloth softer;5. Adjust the winding speed to achieve full traction effect;6. According to the speed of rewinding, the electret usually needs to add two electrets, the static voltage is 40kv-60kv, and the distance between the electret rods is 5-7 cm, and the net rewinding speed is slow plus one static electricity. You can choose to add positive You can also choose to add negative electricity, which can be determined by experiment. 2: Tuning initial parameter setting1. Screw temperature: set 190 degrees, 230 degrees, 230 degrees, ..., 230 degrees, 270 degrees (the material of 1500 melt index does not exceed 270 degrees, and it can be 260 degrees);2. Die temperature: 252 degrees, 252 degrees,..., 252 degrees (generally 240 degrees -255 degrees);3. Quick screen changer, metering pump, die filter screen: 240 degrees;4. Heating pot temperature: 300 degrees, hot air temperature: 240 degrees;5. Wind pressure: 0.2-0.5MPa (generally low temperature PP material, the wind pressure can be selected a bit smaller, medium and high temperature materials, the melting index of the material around 1300 wind pressure can be larger);6. Retracting distance: 15-19 cm;7. The size of the tuyere is consistent with the distance from the tip of the spinneret to the plane of the wind knife, 1-2mm;8. The screw speed is moderate or small (the wind pressure is small, the extrusion volume can be small, and the wind pressure is large, and the extrusion volume can be larger).......

What are the main products of spunbond 2020/11/20

The main products of spunbond non-woven fabrics are polypropylene, polyester (long fiber, short fiber), the most common and most commonly used are non-woven bags, non-woven packaging and so on. In addition, because spunbond non-woven fabrics have excellent properties such as high strength, high temperature resistance, and good air permeability, they are also used in medical and health products such as masks.Due to the outbreak of the new coronavirus in 2020, the demand for masks has increased sharply. In the production process of the filtering part of the masks, due to the high strength, spunbonded non-woven fabrics are required for the surface and inner layers. With the explosive growth in the demand for masks, the demand for spunbond non-woven fabrics related to the production of masks has also increased significantly. At the same time, the increase in capacity utilization is also expected to further boost product profit margins.......

In 2020, spunbond nonwovens and meltblown 2020/11/20

With the continuous development of the market, various production processes in the non-woven fabric industry have also been continuously improved. At present, the production process of my country's non-woven fabric industry mainly includes spunbonding, needle punching, spunlace, chemical bonding, thermal bonding, airlaid, meltblown, wet method, etc. In 2019, the non-woven fabric market is dominated by spunbonded non-woven fabrics, with an output of 49.8%; followed by acupuncture process non-woven fabrics accounting for 23.03%; and it is worth noting that the core components of masks are melted. The output of spray cloth accounts for only 1.07%.Spunbond non-woven fabrics (spunbond non-woven fabrics) are made of synthetic polymers (polyester and polypropylene), using the principle of chemical fiber spinning to form continuous filaments in the polymer spinning process, which are stretched into The fiber web is made by directly bonding. Spunbond non-woven fabric has excellent properties of high temperature resistance, aging resistance, UV resistance, high elongation, good stability and air permeability, corrosion resistance, sound insulation, mothproofing, and non-toxicity.According to data from the Spunbond Nonwovens Branch, the output of spunbonded nonwovens in my country from 2014 to 2019 has shown an increasing trend year by year. In 2019, my country's spunbond non-woven fabric output reached 3.0941 million tons, an increase of 4.14% year-on-year. It is predicted that the output of spunbonded non-woven fabrics in my country in 2020 will reach about 3,291,700 tons.my country's meltblown non-woven fabric output will reach 70,700 tons in 2020Meltblown non-woven fabrics (meltblown webs) first melt the polymer into a melt, send it into the extrusion cavity, and extrude it from a row of flat spinnerets. The high-speed hot air stream is introduced by the pipe and ejected from the flat slits on the upper and lower sides of the spinneret at high speed, and then the unformed melt stream is dispersed and broken to form extremely fine irregular ultra-fine short fibers. Then it is condensed on a porous drum or screen to form a fiber web, and finally a non-woven fabric can be formed through self-bonding or thermal bonding.According to data from the Spunbond Nonwovens Branch, the output of meltblown nonwovens in my country from 2014 to 2019 showed a fluctuating trend. Among them, in 2019, my country's meltblown non-woven fabric output was 66,500 tons. It is predicted that my country's meltblown non-woven fabric output will reach 70,700 tons in 2020.......

The relationship between non-woven fabric 2020/10/30

Spunbond fabric and non-woven fabric are subordinate. There are many production processes for the manufacture of non-woven fabrics, among which spunbond method is one of the non-woven fabric production processes. (Including spunbond method, meltblown method, hot rolling method, spunlace method, most of the non-woven fabrics on the market are produced by spunbond method)According to the composition of non-woven fabrics, there are polyester, polypropylene, nylon, spandex, acrylic, etc.; different components will have completely different styles of non-woven fabrics. The spunbond fabric usually refers to polyester spunbond and polypropylene spunbond; and the styles of these two fabrics are very similar, which can be distinguished by high temperature testing.Non-woven fabric is a kind of non-woven fabric, which directly uses polymer chips, short fibers or filaments to form fibers through airflow or mechanical netting, and then undergo hydroentangling, needle punching, or hot rolling reinforcement, and then finishing The formed non-woven fabric. A new type of fiber product with soft, breathable and flat structure. The advantage is that it does not produce fiber debris, is strong, durable, and silky soft. It is also a kind of reinforcing material, and it has a cotton feel. Compared with cotton, non-woven The cloth bag is easy to form and inexpensive to manufacture.......

Analysis of main factors affecting the 2020/10/30

In the production process of spunbond nonwovens, various factors may affect the physical properties of the product. Analyzing the relationship between these factors and product performance will help to correctly control the process conditions and obtain polypropylene spunbond non-woven products with good quality and wide applicability. Here, we will briefly analyze the main factors affecting the physical properties of spunbond non-woven fabrics and share them with you.1. Melt index and molecular weight distribution of spunbond non-woven polypropylene chipsThe main quality indicators of polypropylene chips are molecular weight, molecular weight distribution, isotacticity, melt index and ash content. The molecular weight of PP chips used for spinning is between 100,000 and 250,000, but practice has proved that the rheological properties of the melt are the best when the molecular weight of polypropylene is about 120,000, and the maximum allowable spinning speed is also high. . Melt index is a parameter that reflects the quality of melt rheology. The melt index of polypropylene chips for spunbond is usually between 10 and 50. In the process of spinning into a web, the yarn is drawn only once by airflow, and the draft ratio of the yarn is limited by the rheological properties of the melt. The larger the molecular weight, the smaller the melt index, the worse the rheology. The smaller the draft ratio obtained, the larger the fineness of the filaments obtained under the same conditions of melt discharge from the spinneret holes, so the spunbond non-woven fabric exhibits a hard hand feeling. If the melt index is larger, the viscosity of the melt will decrease, the rheology will be better, and the resistance of drafting will decrease. Under the same drafting conditions, the drafting ratio will increase. As the orientation of macromolecules increases, the breaking strength of the spunbonded nonwoven fabric will increase, and the fineness of the filaments will decrease, making the fabric soft to the touch. Under the same process, the higher the melt index of polypropylene, the smaller its fineness and the greater the breaking strength.The molecular weight distribution is often measured by the ratio (Mw/Mn) of the weight average molecular weight (Mw) of the polymer to the number average molecular weight (Mn), which is called the molecular weight distribution value. The smaller the molecular weight distribution value, the more stable the rheological properties of the melt and the more stable the spinning process, which is beneficial to increase the spinning speed, and has lower melt elasticity and elongational viscosity, which can reduce spinning stress. Make PP easier to stretch and thinner, obtain finer denier fibers, and have better web-forming uniformity, with good hand feeling and uniformity.2. Spinning temperature of spunbond non-woven fabricThe setting of the spinning temperature depends on the melt index of the raw material and the requirements for the physical properties of the product. The higher the raw material melt index, the higher the spinning temperature correspondingly, and vice versa. The spinning temperature is directly related to the melt viscosity, and the temperature is low. The viscosity of the melt is high, spinning is difficult, and it is easy to produce broken filaments, stiff filaments or thick filaments, which affect the quality of the product. Therefore, in order to reduce the melt viscosity and improve the rheology of the melt, the method of increasing the temperature is generally adopted. The spinning temperature has a great influence on the structure and properties of the fiber. The lower the spinning temperature, the higher the elongational viscosity of the melt and the greater the drawing resistance, the more difficult it is to draw the thread. To obtain fibers of the same fineness, the drafting airflow speed should be higher when the temperature is low. Therefore, when other process conditions are the same, when the spinning temperature is low, the fiber is difficult to draft. The fineness of the fiber is relatively large, and the degree of molecular orientation is relatively low. The performance of the spunbonded non-woven fabric is that the breaking strength is relatively low, the elongation at break is relatively large, and the hand feel is harder. When the spinning temperature is relatively high, the fiber draft is better, Its fineness is small, and its molecular orientation is high. It shows high breaking strength, small breaking elongation and soft hand feeling on spunbonded non-woven fabrics. However, it is worth noting that under certain cooling conditions, if the spinning temperature is too high, the resulting filaments will not be cooled enough in a short time, and some fibers will break during the drafting process, which may cause defects. In actual production, the spinning temperature should be 220-230℃.3. Cooling and molding conditions of spunbond non-woven fabricDuring the forming process of spunbond nonwoven fabric, the cooling rate of the thread has a great influence on the physical properties of spunbonded nonwoven fabric. If the molten polypropylene can be cooled quickly and uniformly after coming out of the spinneret, its crystallization rate will be slow, and the crystallinity will be low. The resulting fiber structure is an unstable disc-like liquid crystal structure, and the possible drawing multiple during drawing is Relatively large, the orientation of the molecular chain is better, which can further increase the crystallinity, increase the strength of the fiber, and reduce its elongation. It is shown in the spunbond non-woven fabric that the breaking strength is higher and the elongation is lower; if it is cooled slowly , The obtained fiber has a stable monoclinic crystal structure, which is not conducive to the drafting of the fiber. It is manifested in the spunbond non-woven fabric as having a small breaking strength and large elongation. Therefore, in the molding process, the method of increasing the cooling air volume and reducing the temperature of the silk chamber is usually used to increase the breaking strength of the spunbonded non-woven fabric and reduce the elongation. In addition, the cooling distance of the thread is also closely related to its performance. In the production of spunbonded non-woven fabrics, the cooling distance is generally selected between 50 and 60 cm.......

Recent cotton textile enterprise market 2020/9/25

Affected by the epidemic at home and abroad, market demand is sluggish, cotton textile enterprises are sluggish, cotton textile enterprises' operating rate is around 60%, new and technological transformation projects are few, and the demand for equipment and equipment has dropped sharply. Many equipment enterprises produced in the first quarter. Sales mainly continued last year’s orders. In the second quarter, the task volume was obviously insufficient. In addition to the spread of foreign epidemics, import and export logistics and personnel flow were difficult, and the sales of spinning equipment, including import and export, showed a significant decline. Imported equipment only had jet vortex. Spinning equipment is still growing, indicating that the domestic investment enthusiasm for vortex spinning equipment continues. It is expected that the market demand for spinning equipment will not show any signs of improvement in the third quarter, and the shortage of orders will continue.......

There are so many uses for non-woven fabrics! 2020/9/25

The cotton spunlace non-woven fabric is made from 100% natural cotton.Non-woven fabric is a product of the perfect combination of natural fiber and non-woven technology, combined with unique spunlace non-woven technology and advanced manufacturing equipment, with high quality and reasonable price.Cotton spunlace non-woven fabrics are widely used in related industries such as medical and civil sanitation and cosmetic cotton. Non-woven fabrics can be used to produce products: beauty facial masks, cosmetic cotton, household cotton soft towels, sanitary napkins, medical gauze, disposable non-woven products, etc.......

How much do you know about the main uses of n 2020/9/11

Non-woven fabric is a new type of covering material with good air permeability, moisture absorption and light permeability, which has the functions of cold and heat insulation, frost prevention, and sun exposure. And it has the advantages of good filtration, heat preservation, flexibility, softness, lightness and flexibility, high productivity compared with textile fabrics, high production speed, low price, and mass production. Easy to use and store.Non-woven fabric 1. Packaging industry: shopping bags, cement bags, tea bags, equipment materials and commodity packaging cloth, etc.Non-woven fabric 2. Agriculture: agricultural film, crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.Non-woven fabric 3. Industry: roof waterproof material, geotextile, filter material, insulating material, covering cloth, etc.Non-woven fabric 4. Life: curtains and curtains, tablecloths, household appliances cover cloth, suit covers, etc.Non-woven fabric 5. Medical treatment: beauty products, sanitary napkins, sanitary pads, masks, surgical gowns, protective clothing, disinfection wraps, diapers, civilian wipes, wipes, wet face towels, magic towels, soft towel rolls, etc.Non-woven fabric 6. Automotive industry: automotive interiors, automotive protective covers, cushions, etc.......

A Japanese study found that: non-woven masks 2020/9/11

A few days ago, Japan invited Fugaku, the world's fastest supercomputer, to "go out" and came to a conclusion: non-woven masks are more effective than other common masks in preventing the spread of Covid-19 through air droplets.In the latest TOP500 supercomputing, Japanese Fugaku supercomputing using 48-core ARM chips ranks first. The super-computing CPU uses the ARM architecture, and its peak floating-point performance is as high as 513PFLOPS (5.13 billion times). The Rmax performance is also 415.5PFLOPS, which is more than 2.5 times the peak of the second supercomputing Summit, but the power consumption has reached 28MW. Simmit is 2.8 times.According to the Nikkei Asian Review, Fugaku can perform more than 415 trillion calculations per second. It simulated the effectiveness of three types of masks to prevent viruses and found that non-woven masks are better than those made of cotton and polyester. Masks are better at preventing the aerosol sprayed out when the wearer coughs.Non-woven masks are disposable medical masks that Japanese people often wear during the flu season and the new crown virus pandemic. They are made of polypropylene and are relatively cheap to mass produce.Non-woven fabric has no warp and weft threads, it is a fabric that does not need to be spun and weaves. It just aligns or randomly arranges textile short fibers or filaments to form a web structure, and then uses mechanical, thermal bonding or chemical methods. Reinforced.Because it is not interwoven and knitted together one by one yarn, but the fibers are directly bonded together by physical methods, so the thread cannot be drawn out like ordinary clothes.Textile masks, including those used in Fugaku simulations, are usually made of fabrics such as cotton. After a temporary shortage of non-woven masks in some countries, textile masks appeared.They can be reused and are usually more breathable, but according to the World Health Organization (WHO), they should be cleaned with soap or detergent and water at least 60 degrees Celsius at least once a day.According to experts from the Japanese Institute of Physics and Chemistry (Riken), this kind of non-woven fabric can block almost all water droplets from coughing. The Institute of Physics and Chemistry is a government-supported research institution in the western city of Kobe in Japan.Cotton masks and polyester masks are slightly less effective, but they can still block at least 80% of droplets.According to computer models, non-woven "surgical" masks are slightly less effective in blocking small droplets below 20 microns, and more than 10% of the droplets will leak out from the gap between the edge of the mask and the face.A micrometer is one millionth of a meter.Makoto Tsubokura, a research team leader at the Computing Science Center of the Japan Institute of Physics and Chemistry, encouraged people to wear masks even when the heat wave swept through most parts of Japan.According to the Nikkei, Tsubokura said: "The most dangerous thing is not to wear a mask.""It's important to wear a mask, even cloth masks that are less effective."Fugaku also simulated how droplets spread in separated office spaces and crowded trains, when the windows of the carriages were open.Although the 130 billion yen (approximately US$1.2 billion) supercomputer will not be fully operational until next year, experts hope that it can help identify drugs for Covid-19 from about 2,000 existing drugs. Including drugs that have not yet entered clinical trials.......