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Today we will talk about the problem of TPU film peeling off on the back of textiles after dry cleaning. First, let’s talk about why this happens. In fact, as a composite factory, we often encounter questions like this, that is, textile composite films or textile composite products made elsewhere delaminate after being washed or dry-cleaned. Generally speaking, this means that there is no manufacturer that specializes in washable lamination. Everyone takes it for granted that lamination is just a simple matter of laminating textiles. In fact, compounding is relatively professional. Returning to the issue of "the TPU film on the back of textiles falls off after dry cleaning", this is most likely a lamination problem. Since the lamination method does not support dry cleaning, it will delaminate after dry cleaning. Before compounding, we will ask customers about their needs and subsequent processes, select the compounding process that meets their requirements based on their needs, and at the same time make boards for customer confirmation, and then produce large quantities after confirmation. Relatively speaking, this is a more rigorous process. Of course, some people will think this is troublesome. How could this happen if getting back together is such a big deal? This must be explained to everyone. Compounding is also a professional matter. The process of confirming samples before making large quantities will most likely solve many problems in advance.

Taizhou High-tech Nonwovens Co., Ltd. recently announced that the company has successfully become the leading nonwovens manufacturing company in China. With years of hard work and innovation, the company has achieved remarkable results and earned a good reputation in the nonwovens industry. As a company specializing in nonwovens manufacturing, Taizhou Gaoxin Nonwovens Co., Ltd. has been committed to providing high-quality products and excellent services. The company has advanced production equipment and technical teams, capable of producing various specifications and types of nonwoven products, including medical use, industrial use and daily life use. These products are popular in domestic and foreign markets and are deeply trusted and praised by customers. Taizhou Gaoxin Nonwovens Co., Ltd. always adheres to quality as the core and continuously improves the quality and performance of its products. The company strictly follows international standards and industry norms, and conducts strict quality control on every production process to ensure product stability and reliability. In addition, the company also focuses on product innovation and research and development, constantly launching competitive new products to meet the changing needs of customers. In the context of increasingly fierce market competition, Taizhou High-tech Nonwovens Co., Ltd. has achieved outstanding results by continuously improving its competitiveness and market share. The company actively expands domestic and foreign markets and has established long-term and stable cooperative relationships with many well-known companies. At present, the company's products have been sold at home and abroad, winning the recognition and trust of our customers. The success of Taizhou High-tech Nonwovens Co., Ltd. is inseparable from the hard work and team spirit of all the company's employees. The company always pays attention to the training and development of employees, provides a good working environment and welfare benefits, and stimulates employees' creativity and work enthusiasm. The company also pays attention to corporate social responsibility, actively participates in public welfare undertakings and community construction, and contributes to society. Looking forward to the future, Taizhou High-tech Nonwovens Co., Ltd. will continue to adhere to the customer-centric approach, continuously improve product quality and service levels, and strive to become the world's leading nonwovens manufacturing company. The company will increase investment in scientific research, strengthen technological innovation, and promote the development and progress of the industry. At the same time, the company will continue to strengthen cooperation with customers and partners to jointly create a better future.

What material is the non-woven fabric made of? There are many materials that can be made of non-woven fabrics. The most common ones are made of polyester fiber and polyester fiber. Cotton, hemp, glass fiber, rayon, synthetic fiber, etc. can also be made into non-woven fabrics. Non-woven fabrics are The fibers of different lengths are randomly arranged to form a fiber web, which is then fixed with mechanical and chemical additives. Non-woven fabrics are called non-woven fabrics because they do not need to be woven and formed like ordinary cloth. There are many kinds of materials that can be used to make non-woven fabrics, but common non-woven fabrics are polyester fibers as the main raw material. Made by adding other fibers. Non-woven fabrics have the same advantages as ordinary fabrics, such as softness, lightness and good air permeability, and food-grade raw materials are added in the production process, so they are highly environmentally friendly and non-toxic and odor-free products. However, non-woven fabrics also have some disadvantages. For example, the strength is not as high as that of ordinary fabrics. Because they are arranged in a directional structure, they are easy to crack and cannot be cleaned like ordinary cloths. They are basically disposable products.

In order to avoid the spread of the virus during the epidemic, everyone has become accustomed to wearing non-woven masks. Although wearing a mask can effectively prevent the spread of the virus, do you think wearing a mask will give you peace of mind? The Straits Times recently cooperated with the local Eurofins laboratory to study how many microbes will be attached to the non-woven mask when wearing a non-woven mask for a long time. Research from the Eurofins lab shows that the longer a non-woven mask is worn repeatedly, the amount of bacteria, mold and yeast inside the mask increases. The experiment was conducted on disposable and reusable masks for six and 12 hours, respectively, recording the emergence of bacteria, yeast, mold, Staphylococcus aureus (a common cause of skin infections) during this time. fungus) and Agrobacterium aeruginosa (the fungus that causes the rash), and then compared. The experiments recorded bacteria, yeasts and molds, Staphylococcus aureus, and Agrobacterium aeruginosa, respectively. (The Straits Times) Dr John Common, a skin research scholar at the Singapore Institute of Science and Technology, said in an interview that Staphylococcus aureus may produce some toxins that are harmful to humans. These germs can be spread through direct contact with an infected person, or through the use of contaminated items. Therefore, this fungus is classified as a pathogenic organism, which means that this fungus that often occurs in healthy people can also cause harm to the human body to some extent. Agrobacterium aeruginosa is another type of bacteria that can live on the skin and cause harm to the human body. Fortunately, the presence of Staphylococcus aureus and Agrobacterium aeruginosa cells was not found in all the tested mask samples. Unsurprisingly, the researchers found that the total counts of yeast, mold and other bacteria were higher on the masks that were worn for 12 hours than those that were only worn for six hours. The bacteria of the non-woven mask worn for twelve hours was significantly higher than that of six hours. (The Straits Times) Notably, the study found that reusable masks generally contained more microorganisms than disposable non-woven masks. At present, further testing is required to determine whether other microorganisms and bacteria attached to the mask can cause diseases or skin diseases. A local microbiologist told The Straits Times in an interview that the warm and humid environment in all masks is often conducive to the growth of microorganisms, but these microorganisms are not all harmful. Yeast and mold. (The Straits Times) In an interview, Professor Chen Weining, Director of Nanyang Technological University`s Food Technology Program, said: "Because of the presence of microorganisms in our surrounding environment and digestive system (eg: mouth and intestine), it is not surprising to find these microbial bacteria on masks." Dr. Li Wenjian, Dean of the Department of Chemistry and Life Sciences of Nanyang Technological University, said that the materials of these masks will lead to the retention of a certain amount of bacteria after 12 hours of use. He pointed out that the biggest difference between disposable non-woven masks and reusable masks is the lining fabric closest to the mouth. He says: "The lining fabric closest to the mouth is where bacteria remain when we sneeze or cough. When we speak with a mask on, our saliva will be atomized and attached to this fabric." Dr. Li added that disposable non-woven masks can provide better breathability and bacterial filtration than reusable woven masks. The fiber space of the woven mask is relatively large, so the filtration performance of bacteria is not so good. Therefore, if the reusable mask is not cleaned frequently, it will cause dust, dirt, sweat and other microorganisms (including bacteria) to be absorbed inside and outside the mask. "These are likely to cause problems such as allergies, skin irritation or infection." Dr. Chen, an assistant professor at the Department of Microbiology and Immunology at NUS Yang Luling School of Medicine, told reporters that in "the vast majority of cases", the bacteria on the masks did not cause too serious consequences, but occasionally "opportunistic infections" occurred. Dirty masks that haven't been washed in a week. (The Straits Times) These bacteria that live on the skin can multiply on dirty masks and cause disease. Dr Chen said: "When the bacterial counts are low, the immune system will keep them under control. Once the counts are high, it can cause mild to severe allergic reactions, breathing problems and even nasal infections." Dr. Chen pointed out that since it is difficult to determine whether there are harmful bacteria on the mask, it is recommended that everyone wash the mask frequently or after wearing the mask for a day. Seeing these "suddenly visible" bacteria on the mask, do you still dare to be lazy and not change the non-woven mask?

Maintaining the working efficiency of the meltblown machine and reducing the resistance of the meltblown cloth as much as possible has become a new issue that the current meltblown cloth factory needs to overcome. For example, for a meltblown cloth weighing 25 grams, the single-layer resistance is controlled below 60pa at a flow rate of 85L/min, and the double-layer resistance is controlled below 120pa. At a flow rate of 95L/min, the single-layer resistance is controlled at 60-70pa, and the double-layer resistance is controlled at Below 150pa is ideal. How to achieve a balance between maintaining efficiency and reducing resistance is a test of the level of the tuner. The following is the experience of 12 strokes shared by an actual combat machine adjustment master, which can be referred to as appropriate by all cloth factory owners. 1. Reduce the speed of the main engine and reduce the volume of the metering pump. How to control the reduction of metering requires you to record carefully and debug patiently. Assuming that your meltblown machine is 1600mm wide, it is generally divided into 9 rolls and a width of 175mm as an example. Some customers are not calculated at 175 and so on. For example, for a meltblown cloth with a gram weight of 25 (g/m2), you should basically keep your sample (sampling a circular cloth with a diameter of 100 square centimeters ≈ 11.3 centimeters, as shown in the picture above) at a gram weight of 0.25 to 0.28 grams. Assuming that the meltblown cloth we are going to do now is between 0.25-0.28, use a grammeter to test the weight of a single piece. Record the data, and mark each roll by 1~9. At this time, put the total amount of 1~9 on the grammeter to obtain a total data. For example, let's say we have 1 roll 0.27, 2 roll 0.28, 3 roll 0.27, 4 roll 0.29, 5 roll 0.26, 6 roll 0.26, 7 roll 0.28, 8 roll 0.25, 9 roll 0.25, then put all the original films The weight meter calculates the weight divided by 9, and we calculate an average of 0.268. Assuming your weight/9, the calculated average is between 0.25 and 0.28, which proves that your measured weight is correct. Adjust the gram weight of each roll later. According to the 4th roll above, 0.29 exceeds the gram weight. Here, each roll is adjusted individually, remember this sentence: the small gram will heat up, and the heavy gram will cool down. 2. The above steps are completed to control your amount. The weight of each roll is different, and the tested values are also different. It is to ask you to adjust, within the controllable range, to increase the efficiency of the cloth, and the gram weight is heavy. The efficiency of spraying is also high, but the resistance is also increased. 3. Increase the flow of hot air and increase the hot air. 4. The above elements are basically to control your cloth with high filtration efficiency. Let's deal with the most critical resistance problem. 5. Increase the DCD (receive distance), assuming your distance is 16 cm, the DCD is changed to 16.5 cm, and so on, record the data for fine-tuning. 6. The distance is changing, and the air suction volume at the bottom of the net also changes, because polypropylene is entangled into fibers by its own heat. The closer the distance, the greater the heat, and the air suction at the bottom of the net should be increased; the farther the distance, the lower the suction at the bottom of the net. When you move the distance, you must control the suction air volume at the bottom of the net, adjust it slightly, and do not reduce it in a large range. Record the data when you move, adjust step by step to the best, the resistance will decrease, and the spraying efficiency will be reduced. Within a controllable range, maintain efficiency and reduce resistance, and strike a balance between the two. 7. Reduce the speed of the conveyor belt and the speed of winding, within the controllable range. 8. The temperature of the hot air is controlled in a state of no flying flowers, and the temperature of the hot air will decrease when the distance is close. 9. The most important factor of resistance is DCD, the gram weight of cloth. It is convenient to do more detailed articles here. DCD is changing, and so must the data. When the efficiency decreases, the air volume and air temperature are increased, the main engine speed is slowed down, and so on. All of the above are detailed. 10. The resistance is low in efficiency. As long as the air volume and air pressure are increased, the speed of the main machine is reduced, and the temperature of each area of the mold is maintained at the gram weight. If the gram weight is insufficient, the temperature can be increased slightly. Keep the gram weight within the adjustable range. 11. The electrostatic electret does not need to be repeated, it is enough to basically keep it free of sparks. 12. Note that the filter should be changed every 2 hours, and the resistance will also be affected for a long time.

Now there is a kind of non-woven wallpaper on the market, which is also a kind of modern home wallpaper category, because it uses natural plant fibers after non-woven processing skills to form non-woven wallpaper directly, which can be more Environmental protection is more healthy, and the stretching force is stronger. The biggest feature of non-woven fabrics is that they have long durability and better air permeability than ordinary wallpapers. So what are the characteristics of non-woven wallpapers and how to choose them? The editor of Honeypot Ant Decoration Network will analyze the relevant issues for you here. Common sense, I hope it can help the owners. [Original] What are the characteristics of non-woven fabrics and what are the identification skills of non-woven fabrics Characteristics of non-woven wallpaper 1. Good environmental performance: Non-woven wallpaper is made of natural raw materials such as fiber or silk. No PVC or chlorine elements, no formaldehyde gas during installation, the air pollution will be low. 2. Good air permeability: At present, the air permeability of non-woven fabrics is the best. It can improve the humidity of the wall and the air anytime and anywhere, and it will not cause the wallpaper to become moldy and yellow, and the wallpaper glue will fail and the wallpaper will fall off. 3. Long lifespan: The wallpaper sticker is very strong, it is difficult for non-professionals to tear it off, and the use time is long. 4. Good ductility: small shrinkage force, light texture, the wallpaper is naturally attached to the wall, and the seamless connection looks like a whole. Non-woven wallpaper identification technology 1. Feel the feel of the hand The wallpapers of pure wallpaper and non-woven wallpaper look similar, but it feels that they have many different aspects, although it seems that there is any difference between them, but there is no texture, the texture of pure paper wallpaper will be more flexible, because pure paper wallpaper is Made of wood pulp. 2. Anti-mildew and waterproof A few drops of water droplets on the surface of the wallpaper completely invade the wallpaper into the water to test the water permeability of the wallpaper, but the water permeability is not very good. After a drop of water, whether there is a color drop on the surface of the wallpaper dried with paper, especially if the color of the wallpaper is brighter. The wallpaper has been treated with waterproof and moisture-proof treatment, made on the wall and the wallpaper will not shrink during use. 3. Color difference Due to the use of natural materials, non-woven wallpaper may have gradient color difference, this is a normal phenomenon, not a product quality problem. 4. Good environmental protection The wallpaper with good environmental protection has almost no peculiar smell, and some inferior wallpaper will have a pungent smell. This wallpaper is not available for purchase, and a small amount of wallpaper can be lit if conditions permit. If less odor is generated, no black smoke will be formed and a small amount of gray powder will be emitted, which can prove that the wallpaper has high environmental performance.

Flame retardant non-woven fabrics have the characteristics of moisture-proof, breathable, flexible, non-combustible, and easy to decompose. Among the non-woven fabrics, there is a flame-retardant non-woven fabric, which has the characteristics of high strength, good elasticity, and good heat resistance. What are the reasons for flame retardant? Flame retardant non-woven fabric is a kind of fabric that does not require spinning and weaving. It is a sheet, fiber web made of oriented or randomly placed fibers that are rubbed, cohesive or bonded, or a combination of these methods. or batting. Its flame retardant mechanism is mainly to add flame retardants. Flame retardants are a kind of material additives, which are used in polyester plastics, textiles, etc., and are added to polyester to achieve the purpose of flame retardant by increasing the ignition point of the material or preventing the material from burning. . Flame retardant non-woven fabrics can be divided into polyester flame retardant non-woven fabrics, polypropylene flame retardant non-woven fabrics and viscose flame retardant non-woven fabrics according to the raw materials. The reason why the flame retardant non-woven fabric can be flame retardant is the above-mentioned, and it is for these reasons that the non-woven fabric can be flame retardant.

The chemical fiber felt is often subjected to various external forces such as stretching, crimping, and twisting during the processing, so that the fiber changes its original shape. Due to the good elasticity of wool, wool felt tries to return to its original shape, so various stresses are generated inside the fibers. This internal stress needs to be gradually attenuated until eliminated in a long period of time. It is often used for the processing of wool products. This is one of the factors that make wool products unstable in size and shape during processing and use. The plasticity of wool refers to the property that wool can rapidly attenuate its internal stress under humid and hot conditions, and can change its existing shape according to external force, and then keep the shape after cooling or drying. The main part of wool fiber is the cortical layer composed of cortical cells. Cortical cells of wool felt contain high-sulfur and low-sulfur proteins. The former is the main component of the matrix, and its molecular chain is amorphous and coiled; the latter's molecular chain has a helical structure and forms basic fibrils in cortical cells . The basic fibrils are then formed into microfibrils, and the microfibrils are further formed into fibrils. All kinds of fibrils are embedded in the tomb, and the fibrils and the forensics can be connected by disulfide bonds. Some research data pointed out that the diameter of the fibrils in 0 cortical cells is about 0.25m, the diameter of microfibrils is 7.5nm (75A), and the diameter of basic fibrils is about 2nm.

When the interlining is bonded to the fabric, if the bonding strength is not high, the peel strength is not high. The reasons for insufficient peel strength are mainly as follows: 1. The temperature of the interlining does not meet the requirements when bonding, and the hot melt adhesive powder is not fully melted; 2. The temperature during bonding exceeds the optimal bonding temperature, which means that the hot-melt coating of the interlining is excessively melted and lost; 3. The coating on the interlining is uneven or the amount is not enough; 4. The pressure used by the bonding machine is not enough when bonding the interlining; 5. The humidity is too high. Faced with the above reasons, we can do the following solutions: 1. Carefully read the best bonding conditions for the interlining provided by the interlining manufacturer, and adjust the best bonding conditions (temperature, time, pressure) according to the characteristics of the fabric; 2. Select high-quality interlining cloth, good interlining cloth weight standard, uniform coating; 3. Use a good bonding machine, usually pay attention to maintenance, and replace the aging parts; 4. Try not to use linings that have been stored for too long, and avoid moisture and direct sunlight for storage linings.

In the production process of clothing technology, interlining is an indispensable auxiliary material, especially in autumn and winter, it is a commonly used auxiliary material. The role of interlining in the production process of clothing technology is to shape the part of the garment, facilitate the sewing of the garment, and shape the part of the garment to be tall and straight. The performance of the interlining The physical properties of the interlining are thickness, elasticity, ironing temperature and pressure required for ironing. 1. Non-woven interlining and woven interlining have different thicknesses. Like the fabric, the thickness of the interlining is difficult to measure, and can only be judged by visual and sensory perception. Usually, the thickness of the interlining is classified into three types: thin, medium and thick. 2. There are two kinds of elasticity in woven interlining, one is the elasticity of the interlining cloth woven with elastic yarn material, and the other is the degree of stretch due to the existence of gaps in the weaving of the two systems of warp and weft due to stretching; no The elasticity of the spun interlining is its own stretch. 3. The interlining ironing temperature refers to the temperature at which the interlining viscose is heated and melted. Usually, the interlining has two types: high temperature interlining and low temperature interlining. 4. The firmness of the interlining on the fabric is related to the ironing temperature of the interlining, the pressure required for the interlining to be ironed, and the length of the ironing time. Usually, the ironing pressure of the high-temperature lining is relatively large, and the ironing time is relatively long; on the contrary, the ironing pressure of the low-temperature lining is relatively small, and the ironing time is relatively short. Matching relationship between interlining performance and fabric performance The matching relationship between the performance of the interlining and the performance of the fabric is an important factor in the selection of interlining. The physical properties of the fabric include fabric elasticity, fabric drape, fabric heat resistance, etc. These properties are closely related to the ironing of the interlining. 1. The relationship between the thickness of the fabric and the thickness of the interlining is proportional. The fabrics of autumn and winter clothing are relatively thick, and the interlinings used are relatively thick, mainly woven interlinings; on the contrary, the spring and summer clothing fabrics are thinner, and the interlinings are relatively thin. 2. The relationship between the elasticity of the fabric and the elasticity of the interlining is also proportional. Stretch fabrics should choose elastic interlining accordingly, and fabrics with stretchability should choose interlinings with stretchability, so as to maintain the original characteristics of the fabric. 3. The relationship between fabric drape and interlining is mainly manifested in: soft and elegant interlinings are relatively soft; exaggerated and geometric silhouettes are stiff and thick interlinings. 4. The relationship between the heat resistance of the fabric and the ironing temperature of the interlining. Mainly: fabrics with strong heat resistance use interlining with high ironing temperature; fabrics with low heat resistance use interlining with low ironing temperature.

How to join the overlapping edges of the composite geomembrane two fabrics and one membrane? The joint problem is common in the construction of composite geomembrane. The solution of composite geomembrane joint is an important part of the project construction, which directly endangers the service life of the project operation. According to the quality inspection, the choice of thermal welding is ideal. The thermal welding method is to heat and melt the geomembrane and the surface to melt the surface, and then synthesize it according to the working pressure. It is good to lay small particles of sand or clay on the surface of the composite membrane as a safety protection layer. Both sides of the geomembrane are embedded with a certain membrane layer and a non-adhesive layer. After the composite geomembrane is laid, it must be compacted with sandbags to prevent wind blowing. There must be no waste, water, dust, etc. on the edge of the joint. Before welding, the two sides of the single-layer film at the joint should be adjusted so that the steel rod overlaps within a certain width of the optical fiber, so that the steel rod is flat and wrinkle-free. When welding, professional technicians with certain welding work experience are preferred, and special welding machines are used for welding. Adjust the temperature and speed, (can also be glued). In strict accordance with the engineering construction technical standards, several quality control tasks such as preparation, laying, splicing, testing and backfilling shall be done.

What is a hydrophilic non-woven fabric Most of the non-woven fabrics themselves are not hydrophilic or directly water-repellent. In order to make the non-woven fabric achieve the hydrophilic function, a hydrophilic agent is added in the production process of the non-woven fabric, or a hydrophilic agent is added to the fiber during the production of the fiber, which is called a hydrophilic non-woven fabric. The purpose of adding hydrophilic agent Fibers or non-woven fabrics are high-molecular polymers with few or no hydrophilic groups themselves, so they cannot achieve the hydrophilic properties required in the application of non-woven fabrics, so a hydrophilic agent is added. performance Non-woven fabrics are moisture-proof, breathable, flexible, light in weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. The material can be naturally decomposed when placed outdoors for 90 days, and has a service life of up to 5 years when placed indoors. 1. Light weight: Polypropylene resin is used as the main raw material for production, with a specific gravity of only 0.9, only three-fifths of cotton, with fluffy and good hand feeling. 2. Non-toxic and non-irritating: The product is produced with FDA food-grade raw materials, does not contain other chemical components, has stable performance, is non-toxic, has no peculiar smell, and does not irritate the skin. 3. Antibacterial and anti-chemical agents: Polypropylene is a chemically passive substance, not moth-eaten, and can isolate the erosion of bacteria and insects in the liquid; antibacterial, alkali corrosion, and finished products do not affect the strength due to erosion. 4. Good physical properties. It is made of polypropylene spun directly into a mesh and thermally bonded. The strength of the product is better than that of ordinary staple fiber products. The strength is non-directional, and the vertical and horizontal strengths are similar. 5. In terms of environmental protection, the raw material of most of the non-woven fabrics used is polypropylene, while the raw material of plastic bags is polyethylene. Although the two substances have similar names, they are quite different in chemical structure. use Mainly used in the production of medical and sanitary materials to achieve a better feel and not scratch the skin. For example, sanitary napkins and sanitary pads use the hydrophilic function of hydrophilic non-woven fabrics. Prospect Analysis In recent years, the growth rate of world nonwoven demand has always been higher than that of the global economy. Global non-woven production is mainly concentrated in the United States, accounting for 41% of the world total, Western Europe 30%, Japan 8%, China 3.5%, and other regions 17.5%. Among the terminal applications of non-woven fabrics, sanitary absorbent (especially diapers) products have the fastest growth, and medical textiles, automotive textiles, footwear and artificial leather markets also show a new atmosphere of rapid development. China's non-woven industry started relatively late, but it has developed rapidly. In the early 1980s, production was less than 10,000 tons. In the mid-to-late 1990s, China set off an upsurge in the development of non-woven products. In addition to using domestic production lines, Guangdong, Zhejiang, Jiangxi, Hunan and other provinces have also introduced production lines from abroad. The development speed of China's non-woven products greatly exceeds the average development speed of the textile industry, with an annual growth rate of 8-10%, which is the fastest growing industry in the textile industry.

Quality control is crucial in the nonwoven lamination process. Without it, you could end up with inferior products and wasting valuable materials and resources, and in an era of extreme competition in this industry (in 2019, global nonwoven consumption exceeded 11 million tons, valued at $46.8 billion), facing Risk of losing market share. In order to achieve and maintain the required quality control when producing nonwoven composites, it is critical to have a deep understanding of the control process and turn it into an advantage. Let's take a look. How to ensure the highest quality control of the compounding process? There are only a few processes that really determine the quality of the final non-woven composite material, which must be strictly controlled, mainly the application of tension, temperature, line pressure and adhesive. tension control Web tension is the machine direction force (MD) exerted on the web. Tension is extremely important throughout the lamination process. When properly handling the web, the web must always be pulled by the rollers, and it must not be under too much or too little tension. Tension control is critical at all stages of web processing. In general, post-processing is divided into three distinct tension zones: ● Unwind ● processing ● Rewind Each tension zone must be controlled independently, but must work in tandem with the other zones. The tension applied in each zone is different, depending on the torque of the rollers. The torque must be changed as the roll is unwound or unwound to maintain proper tension. temperature control The temperature setting of the nonwoven lamination is critical to obtain a top quality product. During hot melt adhesive compounding, the temperature of the adhesive layer needs to be precisely controlled, and the composite material needs to be cooled to avoid changing the properties of the composite material. The thermal composite process requires high temperatures to exploit the thermoplasticity of one or more composite layers in the composite. The high temperature and pressure will melt the synthetic fiber layer enough to bond with the nonwoven fiber layer. However, the temperature setting must be precise. If the temperature is too low, it will not glue and it will not last. Conversely, if the temperature is too high, it can lead to the degradation of the material in the cloth layer, thereby affecting the structural integrity of the composite material. Line voltage control The nip is the gap between the two rolls along the composite line. When the cloth surface passes through the pressing line, apply pressure to make the cloth flat and ensure the uniform distribution of the adhesive. The amount of pressure applied in the lamination process can be a game-changer as the web passes through the crimping line. The key to controlling wire pressure is to keep it as small as possible: too much pressure can press the web too tightly and even tear the fabric. In addition, line pressure helps control web tension. It is also important to understand how the relationship between the two rolls is affected as the web passes through the nip. Defects such as cut-off wrinkles can occur if the positioning or torque of the composite roll is not correct. Adhesive quality Controlling the use of adhesives is the key to quality control. If there is too little adhesive, the bond will not be strong enough, and there may be parts that are not bonded at all. If there is too much glue, thick, hard areas will appear inside the composite. Regardless of the gluing method used, the control of gluing is relevant. Gluing methods include: ● Coating head - suitable for contact coating of the entire substrate surface ● Spray - non-contact, available in a variety of patterns such as bead, meltblown or sinusoidal It is important to control the use of adhesive to keep pace with the speed of web movement. The faster the web moves, the faster the gluing needs to be applied, and these settings must be precise to obtain the best coat weight for the final product. The role of Industry 4.0 in quality control The measurement of various parameters of non-woven composite equipment is cumbersome, and human errors are inevitable when manually adjusting parameters. However, Industry 4.0 has changed the game for quality control. Industry 4.0 is considered the next stage of the technological revolution, transforming the computerization of tasks into full automation with the help of technologies such as cloud computing and the Internet of Things (IoT). Non-woven composite equipment based on Industry 4.0 design includes: ● Sensors, distributed throughout the production line ● Cloud connection between device and main software platform ● Easy-to-operate control panel that provides full visibility and real-time control of the production process Sensors located on the equipment can measure settings such as temperature, pressure and torque, and can detect when a product has a defect. Since this data is sent in real time, adjustments can be made during production. Thanks to artificial intelligence (AI), these adjustments can be made through software, maintaining optimal production speeds and optimal settings at all times.

In January 2021, in order to further strengthen the control of plastic pollution, the National Development and Reform Commission issued the strictest "plastic ban" in history. Since the introduction of the new "Plastic Ban Order" in January 2020, the introduction of the provincial "Plastic Ban" policy has been significantly accelerated, and many provinces and regions have also successively issued local "Plastic Ban Orders". From the "plastic restriction order" in 2008 to today's "plastic ban order", under the policy overweight, step by step, environmental protection action is imperative. In today's world, green development has become an important trend. The concept of green development is deeply rooted in the hearts of the people, and green development will become an important starting point for sustainable development and economic structural transformation. After years of green innovation and development, the non-woven industry has continued to promote the transformation and upgrading of the textile industry, and has gradually become an important force for the continuous improvement of China's industrial textile industry and even the entire textile industry. At present, the ecological environment and economic environment are undergoing profound changes. Green development, green products, and low-carbon environmental protection have become important issues in industrial development. In the context of global green production and responsible consumption, the nonwovens industry is facing higher requirements from regulators, environmental protection organizations, supply chains and consumers. Green development has become the top priority of the future development of the industry. Realizing the green development of the non-woven industry is not only an urgent requirement of the world, but also an inevitable choice for my country's economic and social development, and it is also the key to the sustainable development of the industry; to realize the green development of the non-woven industry is to create value, focus on the long-term, and integrate into the international market. It is a major event that has a foothold and a dominant position in it; realizing the green development of the non-woven industry is an important way to promote consumption upgrades, and an important link to promote consumer preferences for technology, green and product functional attributes; The green development of the industry is an important means for the industry to break through the international green trade barriers and enhance the competitiveness of the entire industry. As far as the research and development of nonwoven products is concerned, the nonwoven technology of polymer direct-forming method has been continuously developed and widely used in many industrial and civil fields due to its simple process and short production process, especially by spunbond and meltblown nonwovens. The protective properties of woven materials have been proven in special periods, so their demand has increased sharply. However, nearly 90% of polymer direct-laid nonwovens are currently made of polypropylene (PP), and some are made of polyester (PET), which are derived from natural petroleum and are non-renewable. resources, and cannot be degraded in the natural environment, so its waste disposal has caused many environmental problems. Waste of PP polymer direct-laid nonwovens is also included in this category. Driven by the new crown pneumonia epidemic, the market demand for spunbond and meltblown nonwoven materials for masks and protection has surged, and the disposal of PP spunbond and meltblown nonwoven material waste has also been put on the agenda. Due to its 100% complete biodegradability and excellent biocompatibility, PLA has successfully become a new generation of "green" fibers in the 21st century. In order to protect the environment and save resources, polymer direct-forming nonwovens also urgently need green raw materials. Among many biodegradable materials, PLA has undoubtedly become the preferred raw material for preparing biodegradable nonwovens. Domestic and foreign industry companies have accelerated the process of improving the performance of PLA spunbond and meltblown nonwovens. As far as the application of nonwoven products is concerned, with the technological progress and equipment improvement in recent years, the energy structure adjustment, the energy consumption of spunlace nonwovens has dropped significantly. With the advancement of spunmelt technology and the improvement of drafting equipment, the modification of raw materials, the energy consumption of spunbond and meltblown nonwovens has also dropped significantly. The technical standards for energy consumption in the production of spunbond meltblown nonwovens, covering raw materials such as polyester, polypropylene, PLA, nylon, polyethylene or other synthetic fibers, and formulating relevant energy consumption limits for nonwovens per unit product based on the above process technologies energy consumption parameters.

Polyester spunbond non-woven fabric has high strength, good high temperature resistance (can be used for a long time in 150 ℃ environment), aging resistance, UV resistance, high elongation, good stability and air permeability, corrosion resistance, sound insulation, moth resistance, Nontoxic. Product Specifications: Maximum width after trimming: 3200mm Maximum package diameter: 1500mm Weight range: 25-260g/㎡ Temperature resistance: 180-230℃ Color: mainly white, if you need black and other colors, you need a certain quantity to produce. The main purpose: 1. Household products: fabric softener and additives, vacuum cleaner bags. 2. Packing: cable wrapping cloth, handbag, container bag, flower wrapping material. 3. Decoration: wall decoration cloth, floor leather base, electrostatic flocking base cloth. 4. Agriculture: agricultural harvest cloth, crop and plant protection, weed protection belt. 5. Waterproof material: high-grade breathable (wet) waterproof material base cloth. 6. Industrial applications: filter materials, insulating materials, electrical appliances, reinforcement materials, support materials. 7. Automotive decorative materials. 8. Others: composite film base cloth, baby and adult diapers, sanitary napkins, protective equipment, etc., disposable sanitary materials.

Needle-punched non-woven products: The product is made of polyester fiber after spinning or high temperature environmental protection dyeing, non-toxic and environmentally friendly, bright and colorful, the surface is smooth and can also be treated with velvet, the cutting incision is smooth and the edge is not loose, easy to process, breathable Good dehydration, comfortable hand feel, wear-resistant and corrosion-resistant products. Applicable to all kinds of handbags, leather goods, bags, shoes, hats, clothing, toys, Christmas decorations, etc.

Due to the huge advantages of non-woven products in production and use, they are widely used, and have significant effects in shopping bags in supermarkets, in hospital protective clothing, greenhouse planting, clothing, etc. Why are non-woven fabrics so favored and optimistic? Where is his advantage? 1. Environmental protection of production Non-woven fabric is a dry non-woven product. No water is used in the production process and it will not pollute water or air, which is one of the prerequisites for vigorous promotion; 2. The environmentally friendly non-woven products used are not like other plastic products, which are difficult to degrade. Non-woven fabrics are an extremely degradable non-chemical product. Even if they are buried in the ground, after less than a year, they will It will degrade, and plastic products are different, the better the quality, the more difficult it is to degrade, for decades; 3. Strong plasticity Due to the green life we advocate now, people's awareness of their own health status is also increasing, and the use of disposable non-woven products can not only meet this requirement, but also the cost will not rise too much; 4. Good thermal insulation performance With the rise of agricultural vegetable greenhouse planting, if you want to change the limit of the crop growth cycle, it is necessary to properly control the temperature. Among all thermal insulation materials, the thermal insulation performance of the coated non-woven fabric is stronger and better. And the cost and service life are more practical than forage or insulation;

Soft: It is composed of fine fibers (2-3D) and is formed by light point-like hot melt bonding. The finished product is moderately soft and comfortable. Anisotropy. Filterability, breathable and impermeable. Elasticity, stiffness, lightness, looseness and warmth. Thin as cicada wings, thick as felt. Waterproof and breathable. Ironing, sewing, moulding. Flame retardant, antistatic. Water-permeable, waterproof, wear-resistant, fleece. Wrinkle resistance, good elasticity, high moisture absorption, water repellency. 1. Light weight: Polypropylene resin is used as the main raw material, with a specific gravity of only 0.9, only three-fifths of cotton, with fluffy and good hand feeling. A new type of fiber product with a soft, breathable and flat structure, the advantage is that it does not produce lint, it is strong, durable, and silky soft, and it is also a kind of reinforcing material, and it also has a cotton feel. Compared with cotton fabrics, non-woven Cloth bags are easy to form and inexpensive to manufacture. Nangong Xingyun Felt Co., Ltd. can now produce industrial felt, civilian felt, military bed felt, fine white felt, gray felt, all kinds of colored felt, Christmas pendant felt, miscellaneous felt, cow felt, polyester chemical fiber felt, wool chemical fiber blended Felt, felt for yurt, felt gasket, felt sealing ring, felt strip, felt tube, felt wheel, insole and other felt products and felt pendant, in addition to geotextile, non-woven fabric, needle-punched felt, needle-punched non-woven fabric There are a total of 8 series and thousands of varieties. The main use of the product: it plays the role of filtration, oil absorption and shock absorption in the machinery of automobiles, machine tools, aircraft, trains, ships, electromechanical, chemical, cement, textile and other industries, and has good thermal insulation and decoration on agricultural greenhouses and yurts It can also be used as a lining in furniture, clothing and shoes, and can also be used for the polishing of marble, stainless steel, glasses, precision furniture and other products. and so on with good performance. Felt briefly describes the characteristics of non-woven fabrics: durability, disposable. Insulating, non-conducting. Softness, stiffness. fineness, expansion. isotropic, 2. Soft: It is composed of fine fibers (2-3D) and is formed by light point-like hot melt bonding. The finished product is moderately soft and comfortable. 3. Water repellency and breathability: Polypropylene chips do not absorb water, have zero moisture content, and the finished product has good water repellency. It is composed of 100% fiber, which is porous and has good air permeability. It is easy to keep the cloth surface dry and easy to wash. 4. Non-toxic and non-irritating: The product is produced with FDA-compliant food-grade raw materials, does not contain other chemical ingredients, has stable performance, is non-toxic, has no peculiar smell, and does not irritate the skin. 5. Antibacterial and anti-chemical agents: Polypropylene is a chemically passive substance, not moth-eaten, and can isolate the erosion of bacteria and insects in the liquid; antibacterial, alkali corrosion, and finished products do not affect the strength due to erosion. 6. Antibacterial. The product is water-repellent, not moldy, and can isolate the erosion of bacteria and insects in the liquid, and is not moldy. And enter the next environmental cycle in a non-toxic form, a non-woven shopping bag can be completely decomposed within 90 days. Moreover, non-woven shopping bags can be reused more than 10 times, and the pollution to the environment after disposal is only 10% of that of plastic bags.

Twenty years ago, after my country's first spunbond nonwoven production line was established in Guangdong, by 2006, my country's total output of nonwovens exceeded 1.2 million tons, 4 times that of Japan and 6 times that of South Korea, becoming the world's largest nonwoven production line. The second largest producer of nonwovens. As a product of modern industrial civilization, nonwovens finally entered the homes of ordinary people. Our lives and the environment in which we live are changing because of it. According to the plan of the Ministry of Communications, by 2010, my country will need 267,300 tons of automotive textiles. The survey shows that the sales volume of my country's automotive textiles is increasing at a rate of 15% to 20% every year. The domestic production of automotive textiles cannot meet the rapid growth of the automotive industry. $4 billion. There are hundreds of types of cars, transport vehicles, mini-cars and agricultural vehicles in my country. Since 1995, the demand for automotive textiles has increased every year, but the current domestic production of automotive textiles is still far from meeting the increasing automotive industry. demand. The "SARS" in 2003 let us know that masks made of non-woven fabrics are more antibacterial than gauze masks. From wound care gauze, masks, surgical isolation gowns, surgical gowns, and bandages, non-woven products have more uses due to their barrier properties, antibacterial properties, softness and comfort requirements. In addition, the field of medical textiles, because of its huge technological content and considerable profits, has also allowed more people to start a more in-depth development. It is understood that the development of medical textiles in various countries in the world is accelerating, and 17 textile research institutions in Germany have invested in the research and development of medical textiles. my country has also begun the necessary preparations and investment in this field. For a long time, the requirements for materials for sanitary products are soft, drapey, non-irritating to the skin, and good air permeability. While people continue to pursue comfort, the technological content of sanitary napkins, sanitary pads, training pants, etc. continues to improve. The specially treated spunbond non-woven fabric not only penetrates quickly, but also has good air permeability and softness, which can prevent wrinkling and twisting, and bring the most effective comfort to consumers. Just taking baby diapers as an example, non-woven materials are basically used in the surface layer, side edge, flow guiding layer, absorption layer, and back layer. As one of the greatest inventions of the 20th century, nonwovens are not only changing our lives, but also our ideas. Due to its high tensile force, high tear strength, good uniformity, good softness, and rich colors, spunbond nonwovens have occupied an increasingly important position in household and packaging applications. In various brand stores, people see not only many well-known brand clothing, but also various suit sets that match them; people not only see them in specialty stores, but also in large shopping malls and clothing wholesale markets. It also became a regular.

I believe everyone is familiar with non-woven fabrics. Ordinary non-woven fabrics can be used to make clothing and bags, but do you know what self-adhesive non-woven fabrics can do? This kind of self-adhesive non-woven fabric is cut and used to wrap the wires of small household appliances, which can avoid line confusion, and it is also very effective for protection, which can avoid moisture and leakage! The photo frame backboard made of self-adhesive non-woven fabric can prevent moisture! There is no harm in self-adhesive, and some people will ask what it is. In fact, the self-adhesive non-woven fabric has a layer of self-adhesive on the back of the non-woven fabric. The self-adhesive non-woven fabric can be classified according to the gram weight. The lighter the mass the better!