Mechanical principle of spinning machine 2020/11/27

The spinning machine uses the friction transmission method to form the fiber-forming polymer solution or melt into the filament. The silk cake is automatically switched through the automatic switching mechanism. The lifting cylinder supports the friction roller device and the grooved roller device for vertical lifting movement. All electrical devices are centrally controlled by a programmable controller, which effectively guarantees stable tension, good forming and high production efficiency when the cake is formed. It is a key equipment in the production process of spandex spinning.Mechanical principle of spinning machineThe spinning machine is between the original yarn guide and a drafting machine. The tow passes through an oil immersion tank under low tension, and the oil in the tank is heated to 40-50°C, so that the tow can be uniformly drawn for continuous drawing. To ensure the smoothness and cohesion of the tow, and to keep the temperature of the tow constant.Then three pieces of silk enter a drafting machine, and the drafting roller of the drafting machine plays the role of guiding and fixing the position of the tow during the drafting process. After leaving a drafting machine, the tow enters the water sluice and immediately enters the subsequent wet drafting state. The tow is in the second drafting zone, that is, between the second drafting machine and the tension heat setting machine. The sizing treatment is obtained at high temperature, and the complete orientation of the macromolecular structure is obtained. The two-pass drawing completes about 15% to 20% of the draft ratio. This process allows the fiber to obtain the characteristics of high strength, low elongation, low shrinkage and high modulus.The tension heat setting machine consists of 18 large cylinders, followed by three drafting machines. The tension heat setting machine is divided into three zones that can be started independently. This means that the shrinkage and relaxation levels can be adjusted appropriately between these four-roller heat setting zones. If the wool type low modulus products are produced, there is no need for intense heat setting, and the tow can pass through these large, unheated circles. cylinder.The cooling work of the spinning machine is completed by the tow cooler, and the oil sprayed on the tow will take the maximum amount of heat away from the fiber due to steam. Then the tow enters the cutting machine under uniform tension and is cut to the required length. The cut fibers are sent to the baler and finished into finished products.......

What are the main advantages and characteristics of polypropylene spinning machine? 2020/11/27

Main features of polypropylene spinning machine:1. Can be used in the field of renewable materials2. It can be heated by high-frequency hot roller, with low energy consumption and uniform temperature of the hot roller3. Side blowing wind speed is uniform and stable4. Polypropylene spinning machine runs stably, with low failure rate, simple and convenient operation and maintenance......

The basic parameters of polypropylene spinning machine. 2020/11/20

The polypropylene spinning machine is mainly used for spinning 100-2000 denier polypropylene filaments, and the product is fully oriented drawn yarn (FDY). The raw material is polypropylene fiber slices.Polypropylene fiber is mainly used in: curtain cloth, sofa cloth and other office furniture cloth, as well as luggage belts, Simmons edging belts, ropes and other fields.Basic parameters of polypropylene spinning machine:  Finished fineness: 100~2000 (denier)  Mechanical speed (large): 3000m/min  Process speed (large): 1600m/min～ 2400m/minTow number per part: 4, 6, 8, 12, 16  Number of drafting zones: 3 zonesChangzhou Fubang Chemical Fiber Machinery Factory mainly produces: polypropylene spinning machine, polyester industrial silk spinning combined machine, polyester POY spinning machine, polypropylene FDY spinning machine, polypropylene FDY production line, polypropylene FDY equipment, polypropylene FDY machinery, polypropylene spinning Machine, polyester FDY spinning machine, polypropylene spinning machine, polyester FDY production line, polyester FDY machinery, nylon FDY spinning machine, polypropylene spinning machine.......

European epidemic blockade causes India and Pakistan cotton yarn prices to fall 2020/11/20

In the past week, the price of cotton yarn in Pakistan began to fall, and clothing sales fell again after the second outbreak in European countries, which affected the demand for raw materials from Pakistani garment factories.　　 At the same time, the domestic cotton price fell again and the spinning mills lowered their quotations. 20 carded yarns fell by 1.46%, but the export prices were relatively firm due to low stocks in the spinning mills.　　 In the past two weeks, Pakistani cotton prices have fallen sharply, consistent with the trend of the international market. The Karachi spot price index has fallen by 6.93%, and the quotation of imported US cotton has fallen to 76.70 cents/lb.　　 However, due to the sharp drop in cotton production this year, Pakistani cotton prices are expected to remain firm for some time to come. The US Department of Agriculture forecast shows that Pakistan’s cotton production in 2020/21 will fall 19.3% year-on-year and 34% in two years. Therefore, cotton imports are expected to increase by 50% in two years.　　According to market feedback, Pakistan’s output is said to be as low as 1.2 million tons, and 1.3 million tons need to be imported to meet domestic demand. As of the end of January, 500,000 tons have been signed, so demand will continue to increase later in the year.　　 In the past week, the price of cotton yarn in India fell for the first time in three months. The second epidemic blockade in Europe has had an impact on Indian textile production and sales. The cancellation of export orders led to a decline in cotton and cotton yarn consumption.　　 India's cotton yarn export prices fell, 30 combed yarns fell to 2.96 US dollars/kg, cotton prices remained stable. India’s cotton production fell by 1% this year. Although the area where cotton was planted was crying, excessive rainfall and insect pests led to a decline in cotton yield.Changzhou Fubang Chemical Fiber Machinery Factory mainly produces: polypropylene spinning machine, polyester industrial silk spinning combined machine, polyester POY spinning machine, polypropylene FDY spinning machine, polypropylene FDY production line, polypropylene FDY equipment, polypropylene FDY machinery, polypropylene spinning Machine, polyester FDY spinning machine, polypropylene spinning machine, polyester FDY production line, polyester FDY machinery, nylon FDY spinning machine, polypropylene spinning machine.......

Seize opportunities in the international market to consolidate export competitiveness 2020/10/30

In the face of major changes in the internal and external development environment, the central government proposed to "gradually form a new development pattern with the domestic cycle as the main body and the domestic and international dual cycles promoting each other." This is a strategy for strengthening the country proposed at the critical stage of China's economic development towards high-quality development. It is necessary to accelerate the formation of a virtuous circle of internal and external development with a higher level of opening up. The textile industry has also ushered in new opportunities for transformation and development with domestic demand as the guidance and supply-side structural reform as the main line.　　 The textile industry is one of the earliest and most market-oriented industries in my country. As we all know, the Chinese textile industry has actively participated in the development of globalization in the past few decades, used its comparative advantages to meet the needs of both domestic and foreign markets, gradually cultivated its own brands and technologies, and continuously improved the added value of products. After years of development, the textile industry has taken the lead in the world. Position, become the industry with the largest production scale, the most complete industrial chain, and the most complete categories, basically achieving the goal of a textile powerhouse. Following the market orientation, textile companies continue to explore both domestic and international markets, and under the market leadership, actively promote transformation and upgrading, adjust the industrial structure, and the proportion of domestic sales continues to increase. Expanding the domestic market and stabilizing the export share is the direction of the development of textile industry enterprises.　　Under the current situation, stabilizing the export share is of positive significance to the "six stability" work proposed by the Party Central Committee and the State Council. This year, under the influence of the new crown epidemic, international demand has been hit hard, but in the post-epidemic era, the degree of recovery of international demand and the adjustment of China's role in the global textile supply chain have become a key impact on the stable exports of my country's textile industry.　　 International clothing demand "basic plate" is still　　How to look at the "basic disk" of international demand for textile and apparel? Taking clothing as an example is a better entry point. Although clothing is a non-fast-moving consumer product and has the attribute of postponing consumption of non-essential goods, as a rigid demand product for final consumption by the masses, as long as the population continues to grow and people's yearning for a better life exists, the "basic disk" of international demand will not There are fundamental changes.　　 According to the global import clothing data released by the WTO, in 2000, global clothing imports were US$203.099 billion, which increased to US$527.130 billion in 2018, an average annual increase of 5.44%. The scale of global clothing consumption continues to expand. The United States, the European Union, and Japan accounted for 83.7% of global apparel imports in 2000, and this proportion fell to 64.7% in 2018. Although the proportion has declined, the United States, Europe, and Japan are still the main markets for global clothing consumption.　　 Let's analyze the changes in clothing consumption from the clothing imports of Japan, the United States, and the European Union in the past 20 years.From 2000 to 2019, the average annual growth rate of Japan's global imports of clothing reached 2.21%, and the "big market" of clothing consumption also rose from 2.12 trillion yen in 2000 to the highest point of 3.42 trillion yen in 2015, and to 2019 It remained at a scale level of more than 3.20 trillion yen. Although the growth rate has been high or low, and even showed negative growth for several years, from a linear trend, the "basic disk" of Japanese clothing import consumption has been expanding continuously in the past 20 years.From the perspective of U.S. clothing imports, from 2000 to 2019, the U.S.’s global imports of clothing increased by an average annual rate of 2.03%, and the “market” of clothing consumption rose from USD 57.232 billion in 2000 to USD 85.151 billion in 2015. Maintain the import scale of 83.823 billion U.S. dollars in 2019. From a linear trend, the "basic market" of US imported clothing is also slowly increasing.　　 From the perspective of EU clothing imports, from 2002 to 2019, the EU’s global imports of clothing increased by an average annual rate of 5.00%. The clothing consumption "big market" rose from 37.038 billion euros in 2000 to 84.927 billion euros in 2019. From the linear trend, the “basic” slope of EU imports of clothing exceeds that of the United States and Japan.　　 It can be seen that although the annual growth of clothing imports in the three major markets has been high and low over the past 20 years, sometimes there has been a negative growth, and even affected by the global financial crisis, the decline in clothing imports in 2009 was still deep. At this stage, affected by the epidemic, the clothing import demand of the United States, the European Union, and Japan has also shown a shrinking trend. But from the long-term trend, the "basic disk" of clothing demand in the three major markets still exists.　　 my country's garment exports are under increasing pressure　　 my country is the largest country in textile production and export. Although in recent years, due to the increase in the cost of labor and other factors, some of my country’s textile production capacity has shifted to Southeast Asia and other regions, but limited by the production volume, supporting capacity and rising labor factor costs in Southeast Asia, we want to shake up the development of my country’s textile industry. Global status is difficult to achieve in the short term.　　 However, in recent years, the share of my country's clothing exports in the main international consumer markets has shown a declining trend.　　 From the perspective of Japan’s clothing imports in the past 10 years, my country’s clothing accounted for 82.2% of the Japanese import market in 2010. By 2019, this percentage had fallen to 55.9%, a drop of 26.3 percentage points. This part of the market share is mainly shared by Southeast and South Asian countries such as Vietnam, Bangladesh, Cambodia, and Indonesia. From January to August this year, my country's apparel market share in Japan further dropped to 53.4%, indicating that my country's apparel exports to Japan have increased.　　 The U.S. market is constantly pursuing high-quality and low-cost apparel products, and the market is highly diversified. In 2010, my country's apparel accounted for 39.2% of the U.S. import market. By 2019, this proportion dropped to 29.7%, a decrease of 9.5%. From January to August this year, my country's apparel import market share in Japan further dropped to 22.7%, indicating that my country's apparel exports to the United States are facing greater pressure.　　 From the perspective of clothing imports in the 27 EU countries in the past ten years, in 2010, my country’s clothing accounted for 43.8% of the EU’s import market. By 2019, this proportion had dropped to 29.5%, a drop of 14.3 percentage points. From January to June this year, the share of my country’s clothing in the EU’s import market rose slightly, reaching 30.4%, an increase of 0.9%, but this is the first half of this year. As the epidemic continues in Europe, pressure on my country’s clothing exports to the EU market is still unacceptable Underestimate.　　 Improve the status of international circulation with higher quality　　 Affected by the global epidemic, the world economy is in recession, the circulation of the industrial chain and the supply chain is blocked, and the export of my country's textile industry is also facing challenges. On the supply side, the "low cost" advantage of my country's textile industry is gradually weakening. How to increase the added value in the international cycle is an important issue that needs to be resolved. In terms of demand, the main export markets of my country’s textile products are Europe and the United States. However, due to the sharp decline in international trade demand, economic globalization has encountered a countercurrent, protectionism and unilateralism have increased, and uncertainty and instability have significantly increased. The demand for our textile products may shift and shrink. How to stabilize and expand the market is another important challenge facing my country's textile industry.　　 Faced with the new situation and new challenges, the industry needs to actively explore a transformation and upgrade path to enhance the ability to meet domestic demand as the main line while enhancing the status of the international cycle.　　 From product design, raw material supply to processing, production and consumption circulation, China’s textile industry is highly international in every link of the industrial chain, and is an important component of global value chain cooperation and industrial transfer. This determines that the industry can only achieve the optimal allocation of resources and achieve better development only by integrating into the world trend. In the current complex international political and economic situation, the industry must unswervingly use more in-depth international cooperation to oppose geopolitical de-globalization. Further deepen international cooperation in production capacity, and bring benefits to more countries’ economic development and people’s lives in open development; further strengthen cooperation with international brands, continuously integrate new resources and open up new markets in a mutually beneficial and win-win situation; further strengthen cooperation with international organizations Cooperation, reach understanding and consensus in communication and coordination, and strive for more space for the industry.......

Analysis of common problems in quality management of front spinning in cotton spinning enterprises 2020/10/30

At present, the spinning equipment of Chinese enterprises is becoming more and more advanced, but the quality of many enterprises is difficult to improve. There are many reasons. A brief analysis of the quality problems is mainly related to raw materials, equipment, technology, air conditioning, management, etc., but Inadequate simple management is also an important reason why the quality is difficult to achieve the desired quality. This article simply analyzes the problems in daily management and puts forward suggestions for rectification, which have certain reference value for improving yarn quality and reducing yarn defects.In terms of raw cotton management, many companies currently do not have enough reserves, resulting in inadequate batches of raw cotton and excessively large batches, resulting in yarn color problems. The amount of cotton reserves must match the amount of production used, so that batches can be received normally. At the same time, it is necessary to strictly control the raw cotton purchase. Some raw cotton is processed, although it feels better, but it has very poor spinnability. Table 1 is the AFIS test data of two batches of real estate cotton used by a domestic cotton spinning factory. The two cotton samples have no obvious difference in hand feel, but it can be seen from the AFIS test data that there are obvious differences in quality indicators. Although the purchase price of sample 2 may be lower than that of sample 1, its high lint rate and high neps will directly affect the quality of yarn.The outer side of the raw cotton is mildewed or the incidental debris is not cleaned up. Although most of the blow-up and carding units are now equipped with complete foreign fiber removal machines and trash removal systems, they cannot eliminate such dirty flowers and impurities 100%.Some enterprises do not manage the use of reeling in place, which affects the quality of the finished yarn. The general principle for the use of re-spending in spinning mills is: for ordinary ring carded yarn, the recycle ratio generally does not exceed 5%, and the recycle of combed yarn The use ratio should not exceed 2.5%, and in the process of use, pay attention to the packing density and placement of the return sliver. The packing density of the return sliver should be close to or consistent with the density of the bale. The return sliver must be torn off before returning. It is recommended that the length of the tear is less than 30cm. However, some companies cannot strictly limit the actual use process, and control the amount of recycling according to the amount of recycling generated, and how much is used, resulting in inconsistent recycling ratios between disks, and even the quality of recycling is difficult to guarantee, such as recycling. It contains a lot of cords, and the return sliver is not broken, which has a great impact on the quality of the yarn.One of the reasons for the lack of ingredients to grab cotton is the inconsistent height of the pack. Now the domestic Xinjiang cotton, especially the northern Xinjiang cotton and southern Xinjiang cotton, the regain of raw cotton is very different. The maximum regain of raw cotton can reach more than 10%, and the minimum is less than 6%. This causes serious inconsistency in the degree of bale increase after raw cotton is discharged. Afterwards, the production was started without flat bales, resulting in a lack of ingredients to catch cotton. Another reason is that the recycled recycles and slivers are not packaged, and are scattered directly in the overlock, resulting in a lack of ingredients and spinning.Raw cotton management is the first step in quality management. These problems in the management and use of raw cotton are important issues to be solved in quality management.......

The shortage of raw materials affects the implementation of the Vietnam-EU Free Trade Agreement 2020/9/25

According to a report from Vietnam's "Vietnam News" on September 22: Vietnam-EU Free Trade Agreement (EVFTA) rules of origin limit the source of raw materials for companies. Experts say that in order to seize the opportunity to export to the EU, Vietnamese textile and clothing companies must overcome the obstacle of shortage of raw materials.　　 According to data from the Ministry of Industry and Trade of Vietnam, the EU has a huge demand for textiles and clothing, with an annual import value of approximately US$250 billion. Vietnam’s exports to the EU in 2019 amounted to US$4.3 billion, an increase of 3.8% year-on-year, accounting for only 2% of the EU market. The Ministry of Industry and Trade stated that the EVFTA, which will take effect from August 2020, is expected to help Vietnam's textile and garment industry to increase exports to the EU by 67% by 2025. However, according to EVFTA's commitment, in addition to meeting strict quality standards and enjoying preferential tariffs, local companies must also implement strict origin requirements, especially the origin rules from the fabric link, which means that products exported to the EU must be used Fabrics produced in Vietnam or the European Union. The agreement also allows the use of raw materials from Vietnam and the EU's joint free trade partners. This has become a weakness of the Vietnamese textile and garment industry, as most of the raw materials are imported from countries that have not yet signed a free trade agreement with the European Union.　　Vo De Jiang, chairman of the Vietnam Textile and Apparel Association, said that local textile and apparel manufacturers should use domestic raw materials in the production of products for export to the EU, but in fact many people do not know the source of the raw materials. In addition, new-generation FTAs such as the Comprehensive and Progressive Trans-Pacific Partnership Agreement (CPTPP) and EVFTA have very strict regulations on materials and manufacturing processes.　　 The relevant negotiating experts in Vietnam believe that to solve this problem, the textile and apparel industry can use fabrics imported from countries that have signed FTAs with the EU, such as South Korea, to enjoy the preferential EVFTA tax rate. However, due to distance and price, the quantity of fabrics imported from Korea is very small. In the long run, Vietnam needs a comprehensive strategy to seize opportunities in the EU market. A clothing company said that in order to meet the EVFTA origin requirements, the company has signed a contract to import raw materials from EU free trade partners such as South Korea and Turkey instead of buying from China.In addition, the Ministry of Industry and Trade is formulating a development plan for the textile and apparel industry to develop a large-scale textile and printing and dyeing industrial park with a wastewater treatment system that meets international standards by 2040 to attract investors and create a textile-dyeing-clothing cycle. This will help Vietnam’s domestic textile and apparel industry to join the global supply chain, reduce dependence on imported materials, and make full use of EVFTA and other free trade agreements.......

Selection of heating method for polypropylene spinning machine 2020/9/25

In the energy-saving transformation of electromagnetic heating, there is a new industry that can make good use of electromagnetic heaters, that is, the textile machinery industry. This industry has a polypropylene spinning machine, which has different types: polypropylene FDY spinning machine, polypropylene FDY spinning machine , Polypropylene POY spinning machine, polyester FDY spinning machine, polyester FDY spinning machine, polyester POY spinning machine, polypropylene BCF spinning machine, etc.This type of machine has one of the most important components called the heat roller, which needs to be heated to a certain temperature and runs at high speed. The size of the heat roller is different, generally there are diameters Φ160 Φ180 Φ190 Φ210 Φ220. Length of hot roller: 200-450mm, speed range: 750-5500m/min, surface temperature of godet: ≤240℃-140℃, surface treatment of hot roller: hard chrome plating, ceramic plating.The current heating method of the heat roller is power frequency induction heating. Its disadvantage is that the heating ring is easily damaged. The most terrible thing is that it is easy to heat the central shaft of the motor and burn the motor. Shenzhen Xinhuiyuan's newly developed all-digital application is applied to the heating of polypropylene textile machines with high efficiency and energy saving, which completely solves the shortcomings of traditional heating and greatly reduces the cost for customers. The main advantages of using Xinhuiyuan electromagnetic heater for the heat roller are:1. Make the surface temperature of the hot roller work area uniform, which can meet the requirements of different industrial yarns and civil yarns FDY spinning process2. The surface temperature of the working area of the hot roller rises rapidly, energy saving is obvious, and the efficiency is greatly improved3. After using the electromagnetic heater, the shaft of the heat roller motor will not damage the motor due to induction heating4. The coil of the electromagnetic heater will not be damaged, reducing maintenance trouble and cost5. The equipment has a complete system, simple structure, stable and reliable operation at high temperatures, and can meet the requirements of different fiber FDY spinning processes. It is an economical and reasonable choice for polypropylene FDY spinning.......

The marketing of nylon/cotton fabrics in autumn is smooth 2020/9/18

Recently, orders for autumn nylon/cotton fabrics in China textile city market have increased. The marketing of autumn cotton and nylon fabrics has expanded compared with the previous period. Fabrics with creative styles have been favored by customers from the north and south of the secondary market and purchasers of apparel manufacturers. Local marketing is relatively smooth and has become a marketing highlight.Recently, the start of terminal weaving has shown a slight increase. The comprehensive operating rate of chemical fiber weaving in Jiangsu and Zhejiang is 69.36%, which is still at a relatively low load compared to previous years. The predicament of conventional grey cloth products has been heard and seen by all textile people. It can be said that all kinds of inventory backlogs and shrinking profits have been at the peak of history. However, there are few methods to adjust production strategies and change production varieties in the market, and there are still relatively many textile people who are unwilling to make breakthroughs in conventional products.The textile industry has experienced an off-season that has not been seen in many years, and all production links and various conventional fabrics have encountered sales declines and shrinking profits. But among all the products, the most troubled and most confused in the future may be the very common conventional fabrics on the market. Although the market is not good, there are still many hot-selling products, but these products have nothing to do with conventional fabrics. In order to receive orders, it is normal for the market to allow arrears, but risks coexist. Some new customers may use quality problems to find reasons to deduct the payment. For this reason, many fabric manufacturers have raised the threshold for cooperation with new customers, and even some companies only cooperate with old customers under the current market conditions. Although the return rate of old customers is slow, they generally do not deduct the payment for no reason. The sadness of conventional fabrics can be seen more or less by textile people. The export of clothing and textiles has been blocked this year, especially the resistance to clothing exports. It is unknown whether subsequent orders will continue. Most companies are also actively looking for new growth points, and the development of new fabrics is urgent.In the recent market, orders for autumn nylon/cotton fabrics have been enthusiastically placed, and orders for nylon/cotton leisure fabrics have increased. With 150D nylon yarn×21S/C double-weft nylon/cotton fashion cloth, 150D nylon yarn×32S/C nylon/cotton imitation Tencel fashion cloth, the bureaus, departments and cities also have flat-panel dyeing as the leading products, and each has small batches and multiple batches. Spot transactions and orders are sent out in the same department. The domestic market orders for autumn nylon/cotton fashion fabrics and nylon/cotton leisure fabrics have increased partially, and orders received are small and medium-sized, and the orders placed by counterparts in the market have increased partially. 32S/C×100D nylon yarn + 40D spandex yarn nylon cotton weft elastic Medium-thick autumn fabrics, 32S/C×140D nylon silk +40D spandex silk nylon cotton weft elastic satin medium-thick autumn fabrics, because of the hand feeling and quality better than other varieties, it has been widely ordered by domestic apparel manufacturers for many days. Some foreign trade company salespersons also have small and medium-sized batches of sample orders, and the number of counterparty customers entering the market has also increased in batches. Some front-shop and back-factory cloth companies, production enterprise marketing departments and large-scale sales outlets have marketing advantages, and Chinese and foreign orders are accepted. Increase accordingly.In the recent China textile city market, the sales of autumn nylon/cotton fabrics have been relatively active, and the orders for counterpart fabrics have increased, and the sales of new creative fabrics have increased. Both fashionable and casual autumn nylon/cotton fabrics, cotton/nylon fabrics, and spandex-added nylon/cotton stretch fabrics, and cotton/nylon stretch fabrics have relatively smooth transactions. Nylon/cotton coated fabrics and nylon/cotton plus metal wire memory fashion Cloth, nylon/cotton plus metal wire imitation memory fashion cloth, small batches of multiple varieties, local transactions also went smoothly.The above-mentioned autumn nylon/cotton fashion fabrics and nylon/cotton leisure fabrics, in addition to flat dyeing, also have PU, PA, PVC coated fabrics and coated composite fabrics due to their novel styles and creativity. Relatively large, daily order transactions have also risen slightly. Some cloth companies with shop fronts and factories behind, production business operators, and large-scale sales outlets, and the buyers of the corresponding apparel manufacturers are more active in placing orders for multiple varieties, and creative fabrics are added. The value is still higher than that of large-scale products. Part of the autumn medium-thick new nylon/cotton fashion fabrics are also favored by target customers. Local small batches of multiple varieties have also been traded smoothly. The marketing highlights of autumn nylon/cotton fabrics have partially appeared.......

What are the precautions for the operation of polypropylene spinning machine? 2020/9/18

1. The transmission part of the polypropylene spinning machine should run smoothly without abnormal noise.2. Under normal working conditions of the polypropylene spinning machine, the temperature rise of the gear box surface of the screw extruder should not exceed 30℃. The temperature rise of the metering pump gearbox should not exceed 20°C.3. When the ambient temperature of the polypropylene spinning machine is lower than 28℃, the average temperature of the front and back surface of the spinning box insulation layer should not exceed 65℃.4. The pipe connection of polypropylene spinning machine shall not leak.5. The wind speed of the blowing device should be stable, and there should be no violent fluttering or twining of the silk. The wind speed difference rate of the single spinning position on the same level in the ring blowing device should not be greater than 15, and the wind speed difference rate of the single spinning position on the same level in the side blowing device should not be greater than 20.6. The tow channel and the contact part of the tow should be smooth and free of wire.7. The air tightness test of the biphenyl pipeline shall be carried out according to the value specified in the technical document, and no leakage shall be allowed.8. The spinning box shall be manufactured, tested and accepted according to GB 150, and shall be supervised by TSG R0004--2009.9. The temperature difference of the fixed temperature measuring point of the spinning box heated by the heat medium should not exceed 2℃.10. The temperature difference between the fixed temperature measuring points of the electrically heated spinning head should not exceed 3℃.11. The temperature control accuracy of each zone of the screw extruder should be ±2℃.12. The melt pressure control accuracy of the screw extruder should be ±0.3 MPa.13. The metering pump should meet the regulations of FZ/T 92026.14. The spinneret should meet the regulations of FZ/T 92038.15. Electrical equipment and circuits are well insulated, with insulation resistance ≥ 1 Mi2.16. The protective grounding of the metal shell is reliable, and the grounding resistance is ≤0.1 Q.17. The electrical components should be able to withstand the withstand voltage test lasting 1 min, and the test voltage is ≥1 500 V. The components that cannot withstand the above-mentioned high voltage must be disconnected when testing.18. The painting of polypropylene spinning machine should comply with the regulations of FZ/T 90074.......

What are the main features of polypropylene spinning machine? 2020/9/11

1. Can be used in the field of renewable materials2. It can be heated by high-frequency hot roller, with low energy consumption and uniform temperature of the hot roller3. Side blowing wind speed is uniform and stable4. Polypropylene spinning machine runs stably, with low failure rate, simple and convenient operation and maintenance......

With the advent of "Golden Nine", weaving, dyeing, and finishing are short of people! 2020/9/11

With the deepening of the "Golden Nine", the textile market seems to have undergone a great change. The voice of the market is no longer dominated by "decreasing prices and selling goods", but there have been long-lost price increases, dyes and dyeing fees. , Grey cloth, etc. have risen to a certain extent. In addition to the above price increase information, there have been some subtle changes in the textile market compared to the first half of the year!In the first half of this year, due to the impact of the epidemic, foreign trade orders have almost stagnated, and domestic orders have been few. Many textile mills are in a situation of "nothing to do". In the dyeing factory, the average operating rate of the dye vat in the first half of the year was only half, and workers often gathered to chat. Faced with this situation, many cloth owners have also taken some measures. At that time, it was frequently reported that weaving factories, dyeing factories, and trading companies had dismissed many workers at once. But by September, some factories had begun to recruit workers again. What are the reasons for such a big change? I understand that most of the recruiters are weaving factories that had high temperature and long holidays before. When the long holidays were over, they found that some workers had returned to their hometowns for employment, and some had already found jobs in other places, which also led to some jobs. Gaps, so began to recruit people. There are also dyeing factories and finishing factories. A person in charge of the dyeing factory said: “Recently, due to the increase in work, our machines have been fully operational. We previously fired some workers because of fewer orders, but now we find It’s not enough. In order to keep up with the production schedule, we have to recruit workers again."Want to keep the workers by raising wages, but Boss has more than enough energy to keep it!Of course, some people say that workers can be retained by raising wages, but for the textile bosses, it is really too much and insufficient. This year, many weaving factories are operating at a loss, with only expenditures but no income, and some are out. You may not get the payment. Based on these reasons, some small factories with insufficient strength are simply unable to raise wages for their workers. "Now all costs are rising, including rent, water and electricity, and safety supervision. Workers also have high wage requirements. The wages of a worker in the factory are nearly 10,000 yuan, so every month it requires hundreds of thousands of funds. However, in terms of orders, the prices given by customers are very low. Now some orders can make a few cents of profit, and some take orders at a loss. This year's market, we can feed the workers and we are satisfied." A factory owner with about 40 people said .Judging from some of the above micro-circumstances, the market in September has indeed improved, but how long this wave of market can continue to improve remains to be verified by time. And when the market does not improve significantly, the loss of workers next year may become more serious, and textile bosses need to take precautions in advance!......