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PFC free means that clothes do not contain perfluorocarbons, or PFCs for short. Such clothes are more green, environmental friendly and healthy, which is what Greenpeace International has long called for. PFC is usually used as a waterproof and antifouling coating on textiles, which is very difficult to degrade in the environment. Studies have shown that some perfluorinated compounds, such as perfluorooctanoic acid, have bioaccumulation and can accumulate continuously in the human body through the food chain, interfering with the endocrine system and damaging reproductive organs. Short chain perfluorinated chemicals may spread faster and faster than long-chain chemicals because they are more mobile. Unless high standards of occupational safety, well-equipped production facilities, untrained personnel and good waste and wastewater management are involved, the production of this material is usually a major threat to human beings and the environment.

The clothing worn by basketball players during sports, usually consisting of a tank top and shorts at the bottom. Because in the fierce basketball game, will produce a lot of sweat, even if there is air conditioning in the basketball stadium, if not out of the sweat, will still be uncomfortable, with moisture absorption and sweat function of the clothing can make basketball players maintain a good state of exercise. Generally speaking, polyester fabric is used in basketball match clothes and training clothes. Polyester fabric has the characteristics of high strength, not easy to be mouldy and brittle, not easy to fade, and durable. However, polyester fabric does not absorb water, and does not have the function of moisture absorption and sweat absorption. So how to do a good job of polyester fabric moisture absorption and sweat performance, is the key to a good basketball uniform. Polyester fabric after moisture absorption and perspirant finishing, has good hydrophilicity, air permeability, can quickly guide the sweat and moisture away from the skin surface, can eliminate the synthetic fiber fabric dryness, air tightness and no sweat absorption and other shortcomings; It gives the fabric soft and smooth hand feeling, and the chemical fiber fabric with not particularly high soft requirement does not need to use softener after using this product. Good washable resistance, many times after washing still has excellent moisture absorption and perspiration effect; Does not affect the color of the fabric, but also has a good antistatic, easy to decontamination and other properties. Moisture absorption and sweat discharge finishing agent is suitable for polyester, polyester blend, nylon, acetate and other fabrics to make moisture absorption, sweat discharge and breathable finishing, application scope such as chemical fiber sports clothes, yoga clothes, jogging clothes and so on.

Under the barrier of environmental protection, the water repellent was gradually transformed from C8 to C6. According to statistics, about 13,000-15,000 tons of fluoride were consumed in the entire Chinese market in 2020, and C8 products accounted for 85%. Such a large amount also fully demonstrates the excellent waterproof and oil-proof effect of C8. Now, under the restriction of relevant environmental protection standards, C8 products have been restricted to use in some modules, and replaced by C6. However, there is a concept that has long been implanted in everyone's heart, that is: the waterproof effect of C6 is always inferior to that of C8. 1. The problem of carbon chain length (ie fluoride content): Fluorine is embedded in the carbon chain. If more fluorine is embedded, the carbon chain will become longer, and the carbon chain will be longer, then the stability between molecules will also be strengthened, and the stability will strengthen the ability to resist external stains and oil stains. Also enhanced. 2. The influence of the cleanliness of the cloth surface: Regarding the impurities on the surface of the fabric, the impact on C6 will be higher than that of C8, and the cleanliness of the cloth surface should be determined before C6 is processed; C8 will also have requirements, but the requirements are not as high as those of C6. Therefore, the cleanliness of the cloth surface is very important for C6. 3. Effects with matching softener: This is also related to the length of the carbon chain. The softener will have an impact on the waterproof effect, but the impact of C8 is less than that of C6. Therefore, the product performance of C6 is indeed not as strong as that of C8 products. But considering environmental issues, we have to tend to use C6 products, and all we can do is to make C6 products have better performance as much as possible. Add some other auxiliaries when finishing, and slowly replace the C8 product.

Outdoor clothing is currently in the ascendant in China, and some domestic sports brands are also involved in outdoor. China's outdoor clothing industry is on the rise. Outdoor clothing is mainly sewn from outdoor fabrics. The test items for outdoor fabrics are as follows: color fastness, shrinkage rate , PH value, tear strength, breaking strength, seam slip, these are the indicators that the former dyeing factory needs to do; the finishing aspects are: waterproof, hydrostatic pressure, moisture permeability, breathability and other functional indicators! At present, domestic outdoor practitioners and outdoor enthusiasts have misunderstandings in some aspects of outdoor clothing functions, or their understanding is not rigorous enough. The following Sanchuan Fabric Technology briefly introduces the meaning and difference of finishing function indicators: 1. Anti-splashing water: in the standard laboratory, use distilled water to spray on the sample through the funnel, and score and grade against the waterproof standard sample; Commonly used test standards are American Standard: AATCC 22 (grading system); European standard: ISO 4920 (rating system); American standard and European standard scoring and rating comparison: 100 points (level 5); 90 points (level 4); 80 points ( Level 3); 70 points (level 2); 50 points (level 1); 0 points (level 0). There are three types of water repellent: ordinary waterproof (Water Repellent, abbreviated as: (W/R), water repellent ( Durable Water Repellent outdoor fabric industry is used to call it super water repellent, abbreviated as: (DWR), Teflon (TEFLON) waterproof; (1) Ordinary water repellent(W/R): The surface of the clothes is not waterproof after a few washings. Generally, ordinary outdoor waterproofing is enough. The commonly used data is 70 minutes before washing. If you often go to mountaineering or mountains with a certain altitude, The weather on the mountain is fickle, and it may rain at any time. Ordinary waterproof clothing is not waterproof after washing several times, which will cause the surface of the clothing to be wet and increase the weight of the human body when wearing it. (2)Durable Water Repellent (DWR): C8 water repellent produced by Daikin or other auxiliary companies in Japan, maintains the effect of 80 points (European standard level 3) after 20 washings; because the fluorine content does not meet the European Union standard, it is now Banned by the EU. Now use C6, C4 more, generally after washing 5-10 times to maintain the effect of 80 points. (3)Teflon (TEFLON), produced by DuPont in the United States, is very well-known, and has three anti-effects such as waterproof, anti-fouling, and oil-proof. Buying this brand of waterproof can provide Teflon tag, but the shortcomings of Teflon prevent The water splashing effect is not as good as that of carbon 8 and carbon 6; 2. Hydrostatic pressure (Water Proofness abbreviated as: WP): The outdoor fabric industry is accustomed to call it water pressure resistance. The unit is expressed in mmh2o, which refers to the strength of water pressure per unit area. Under standard laboratory conditions, the fabric is subjected to the upward spray of distilled water. Pressure, and record the maximum water pressure, such as water pressure resistance 5000mmh2o, that is, the unit area can withstand a maximum pressure of 5m without leakage. Commonly used test standards: American standard AATCC 127; Japanese standard JIS L 1092B; European standard: IS0 811; two methods of water pressure test: pre-wash and post-wash: (1) Test before washing: Domestic outdoor brands generally test the water pressure resistance value before washing, but do not measure the value after washing. If the water pressure resistance value of coated fabrics drops a lot after washing several times, it may drop by about 1000-3000 mmh2o. (2) Test after washing: For example, THE NORTH FACE even uses the method of measuring the water pressure resistance after washing 5-20 times. Due to the test after multiple washings, the water pressure resistance value drops greatly. For example, the water pressure resistance of coated fabrics requires 5 After the first washing, it reaches 5000mmh2o, then at least 7-8000mmh2o before washing; of course, this requirement will lead to higher costs! 3. Moisture Proofness (abbreviated as MP): Moisture permeability is expressed in units of g/m2/24h, which means that under certain standard laboratory conditions, a specific humidity difference is formed on both sides of the sample, and water vapor passes through The sample enters the dry side, and the parameters such as the water vapor transmission rate of the sample are obtained by measuring the change of the weight of the moisture permeable cup with time. There are two test methods for moisture permeability: upright cup and inverted cup; Positive cup method: American standard ASTM E-96 A, C, E; Japanese standard JIS L-1099 A1; Inverted cup method: American standard ASTM-E96, Japanese standard test JIS-L1099B1; This test uses pre-wash data! Both domestic outdoor practitioners and outdoor enthusiasts refer to moisture permeability as breathable and moisture-permeable, or directly call moisture-permeability as breathable. It is incorrect and imprecise to confuse these two terms. a concept, which needs to be distinguished and understood correctly; The fabrics with the above three functional indicators are called waterproof and moisture-permeable fabrics, also known as windproof, waterproof, warm and moisture-permeable fabrics. It is simply understood that the rainwater from the outside cannot get in, and the sweat inside is discharged through the pores of the coating and membrane! 4. Air Permeability (Method Air Permeability abbreviated as: MAP): means the performance of air permeating through the fabric; under the specified differential pressure conditions, measure the airflow through a given area of the sample vertically within a certain period of time, and calculate the air permeability. . The airflow rate can be measured directly, or it can be converted by measuring the pressure on both sides of the flow aperture. This is the real breath! Test standard: American standard ASTM D737, European standard ISO 9237, Japanese standard JIS L 1096; The ventilation unit can be expressed in mm/s or cm3/cm2/s; According to the operation of The North Face, Rei, Columbia, LL Bean, EddieBauer, Adidas, Ozark and other well-known outdoor brands in recent years, they have not tested the ventilation, and the domestic outdoor clothing brands have basically not tested the ventilation; Breathable means that the air is transmitted to the human body through the fabric, so it may not have the effect of keeping warm; while wearing a jacket is waterproof and warm but has a stuffy feeling, which is related to the airtightness.

Denim clothing is an evergreen tree in clothing. After more than one hundred years of cultural precipitation and development, it has been standing on the fashion clothing stage with its classic indigo blue yarn as the fabric woven with the white weft. With the development of society and the improvement of people's living standards, people not only have diversified demands on the style of denim clothing, but also gradually increase their functional demands, such as waterproof, oil-proof, anti-fouling and so on. But jean fabrics for pure cotton or pull cotton (brocade, ammonia, cotton blend), and cotton itself has a good hydrophilic, easy to stick on stains, some stains difficult to clean. Therefore, jeans made of waterproof, oil-proof and stain-proof fabrics are more likely to meet consumers' demands for versatility. The principle of durable three-proof finishing agent is to improve the specific surface area of denim fabric, so that the water droplets, dust, oil stains, stains and other difficult to enter the fabric through the gap under normal temperature and pressure, so as to give the fabric durable and washable three-proof effect. The fabric after finishing agent has excellent waterproof, oil-proof, anti-fouling performance, and good washing resistance, three anti-washing effect is still excellent after washing many times; It has little influence on the original air permeability and feel of the fabric. The product has good compatibility and can be used in the same bath with softener and other finishing agents. Safety and environmental protection, no PFOS, PFOA (its content is lower than the detection limit value), in line with export standards. Waterproof, oil-proof, anti-fouling, washable and durable three-proof finishing agent is suitable for cellulose fiber (especially cotton), nylon, polyester and their blended fabric three-proof finishing agent, can be used in jeans, suits, dress and other fields.

Water repellent and oil repellent properties of a fabric The water repellent and oil repellent properties of the fabric are based on limited wetting and represent the ability of the treated fabric to resist the penetration of liquid oil under static conditions that are not subjected to any external forces. Water repellent and waterproof fabrics are different. Waterproof finishing is to coat the surface of the fabric with water-impermeable compounds such as grease, wax, paraffin, rubber and thermoplastic resin to fill the pores on the surface of the fabric to achieve the purpose of waterproofing, but at the same time it is not breathable. In water repellent finishing, hydrophobic compounds are deposited on the surface of fibers so that water does not infiltrate and reach the goal of water repellent. However, the finishing does not close the pores on the fabric, and air and moisture can also permeate, making it both water-repellent and breathable. It is commonly used in coats such as windbreakers and jackets. Water-repellent finishing agents are generally compounds with low surface energy groups. When they are used to organize textile fabrics, the fibers on the surface of the fabric can be evenly covered with a new surface layer composed of water repellent molecules, so that water cannot wet the fabric. The low surface energy treatment of fabrics during oil repellent finishing is similar to that of water repellent finishing, except that the fabrics after oil repellent finishing require non-wetting properties for oils with small surface tension, and are often used for payment by restaurant chefs and waiters. Apron for home kitchen. The surface free energy of fluoropolymers is lower than other polymers, and the use of the fluoropolymers in the finishing of fabrics allows the fabrics to have better oil repellent effects. Anti-fouling performance of two fabrics Contamination often occurs in the daily use of fabrics. The common types of dirt include: solid dirt (abbreviated as dry dirt), such as dust, rust, mud, etc.; liquid and solid grease (oil oil for short), such as food oil, cooking oil, and urban areas. Dust in the oil and the body to exclude the oil and fat; other water-soluble or semi-water-soluble solid substances, such as salt, sugar and some coloring substances. There are three types of stained fabrics. Direct contact contamination The fabrics are in direct contact with the outside world during service, such as the contact between underwear and skin, so that the oil stains on the sleeves, collars, etc.; the outerwear and the textiles used outdoors are in contact with the atmosphere, so that the floating dust in the atmosphere is absorbed; the clothing and clothing Or the contact of clothes with other objects also often causes the transfer of dirt. 2. Electrostatic contamination The degree of dust pickup caused by the attraction of the static charge on the fabric surface to the suspended matter in the air depends on the charge and the amount of electricity that the fibers carry. 3. Recontamination During the washing process, oil stains are removed from heavily soiled clothing and dirt. The anti-fouling property of the fabric is that the fabric is not easy to get stuck with dry dirt or oil, or the dirt is easy to peel off after sticking, and the dirt can be re-stained during the washing process. Anti-fouling finishing of fabrics is mainly to reduce the affinity of fabrics and pollutants (dry or oily). If the surface of the fabric is flat and smooth, it will help reduce the adhesion of solid dirt to the fabric; reducing the generation and accumulation of static electricity in the fabric will also help reduce the adsorption of suspended dirt; reducing the surface free energy of the fabric (oil repellent finishing) will help reduce the fabric Adsorption of oil. For more details, please pay attention to China Grey Fabrics

The invention discloses a water-washable, oil-repellent and water-repellent finishing agent suitable for synthetic fiber fabrics, comprising an auxiliary agent, a penetrant and water, characterized in that: the formula and the proportion of the auxiliary agent in the finishing agent are as follows; the perfluoroalkyl group Acrylate polymer 15 to 20 g/L; carbon polymer 7 to 10 g/L; Nano-scale ultrafine molecular emulsion 7 to 10 g/L. Compared with the conventional process formula, the invention reduces the technical dosage of the auxiliary agent by 10-20g/L, has low cost, and simultaneously reduces the phenomenon of color flowering and material point on the surface of the finished product. The water splashing and oil repellent effect is equivalent to the conventional process.

LeMan Polymer Technology Co., Ltd(LeMan) is a high-tech enterprise with main business of R&D, production and sales of texitile chemicals, such as waterproof and oil proof agent. We are committed to cutting-edge application technology in textile chemical industry(e. g. water/oil proof agent and fluorine free waterproof agent)in order to promote the industrialization. LeMan focuses on the special characteristics of flourine waterproof agent a ND fruorine free waterproof agent, which a re widely used in different textiles such as casual clothing, ties, shoes and hats, jackets, outdoor sports clothing, umbrella fabrics, tents, knitted fabrics, home textiles, automobile interior decoration, work suits, non-woven fabrics, filter cloth and surgical clothing. LeMan also provides perfect water/oil/stain repellent solutions for textile customers. In order to further develop waterproof agent synthesis techonology, the company continuously summarizes and innovates the applications of water/oil proof agent, and builds a systematic application system accoriding to different applicataioin develpment. Our company has been adhering to he tenet of"keep up with the market and create value for customers"since the establishment. Apart from providing high-quality products, we always pay attention to the problems and demands of customers, and serve customers with the best products and service. LeMan holds the principle of"environmental friendly and sustainable develpment", and works hard in the field of fluorine, silicon and textile chemistry. We hope to exceed the expectations of customers and grow together with them through continuous efforts. Products: Environmental friendly, stable and remarkable performance Service: Professional, timely and efficient. Value: Enhancing customer product quality and improving competitiveness. Future: Working hard in the field of tetile and further developing super hydrophobic field.

There should be clear requirements for the testing methods and evaluation indicators of various functions of waterproof fabrics to prevent consumers from being misled and deceived during the purchase process. It is recommended that standard-setting units issue and improve relevant standards as soon as possible. On the one hand, it will help regulate the consumer market, provide a basis for consumers to choose to buy, and reduce blindness; on the other hand, it will also help guide production and provide enterprises with easy control of product quality. To increase the fairness of competition among various clothing brands. Waterproof fabrics are basically made of chemical fiber fabrics. When the outdoor environment is relatively dry, static electricity problems will occur. The clothes are prone to pilling, dust and dirt, and electrostatic adsorption close to the skin. The test method for the anti-sunlight and ultraviolet performance of textiles, the representation, evaluation and marking of the protection level, the test principle is to use a single or multicolor uv ray radiation sample, collect the total spectral transmission rays, and determine the total spectral transmittance t (λ), and calculate the UV protection coefficient upf value of the sample. A parallel beam can be used to illuminate the sample, and an integrating sphere can be used to collect all transmitted light; it can also be used to illuminate the sample with a light hemisphere to collect parallel transmitted light. In actual operation, the testing instrument can automatically calculate the upf value and t(λ) of the sample. When the sample's upf value is greater than 50, it is expressed as "upf>50". According to this standard, when the sample's upf>40 and t(uva)av<5%, it can be called a "ultraviolet protection product". Existing national standards and industry standards, the evaluation indicators of each method are different, and the results obtained by using different test methods for antistatic fabrics are not comparable. The charge area density method can better simulate the electrification process of the waterproof fabric when it is actually worn, and is a more suitable method to test the antistatic performance of the waterproof fabric. The evaluation parameter of textile anti-ultraviolet radiation adopts the ultraviolet protection coefficient upf value, which represents the ratio of the average effect of ultraviolet radiation calculated when the skin is unprotected to the average effect of ultraviolet radiation calculated when the skin is protected by fabric.

Under the environmental barriers, water repellents have gradually changed from C8 to C6. According to statistics, in 2014, the entire Chinese market consumed about 1,3000-15,000 tons of fluoride, and C8 products accounted for 85%. Such a large amount also fully demonstrates the excellent water and oil repellent effect of C8. Now, under the restrictions of environmental protection standards, the use of C8 products has been restricted in some modules, and C6 has been replaced. However, there is a concept that has long been implanted in everyone's mind, that is: C6's waterproof effect is always inferior to C8. 1. The length of the carbon chain (ie the fluoride content): The fluorine element is embedded in the carbon chain. If the embedded fluorine element is large, the carbon chain becomes longer, and the carbon chain becomes longer, and the stability between molecules will be strengthened. The stability strengthens the ability to resist external stains and oil stains. It is enhanced. 2. The cleanliness of the cloth surface affects: Regarding the impurities on the surface of the fabric, the impact on C6 will be higher than that of C8. C6 must be cleaned before treatment; C8 will also have requirements, but the requirements are not as high as C6. Therefore, the cleanliness of the cloth is very important for C6. 3. Influence with supporting softener: This is also related to the length of the carbon chain. Softeners will have an impact on the waterproof effect, except that the impact of C8 is less than that of C6.

LeMan(Suzhou) Polymer Technology Co.,Ltd participated in the Shanghai New International Expo Center from November 1st to 3rd. Monofilament Industry Exhibition. The main theme of this exhibition is the integration of PET, PBT, PP and other monofilament industrial chains. Leman Polymer's EST, ESN, and other products became the focus during the exhibition, and there was an endless stream of customers. On-site inquiries about the excellent characteristics of EST and ESN products given to single ribbons.

What is the purpose of "manufacturing" functional clothing "technological printing and dyeing"? Since the advent of functional clothing, the concepts of massage clothing, antibacterial clothing, sweatshirts, wicking clothing, shark-proof swimwear, and reflective clothing have emerged in endlessly. "With the passage of time, rational consumers value the embodiment of functionality more than slurred professional terms. If the "manufactured" functional clothing wants to be invincible, it needs to rely more on the "usable" added value. With the sporting trend sweeping the world, professional sportswear and outdoor sportswear categories have increasingly become a booster for market growth. Different from the marketing point or even the entertainment point superimposed on the clothing in the sales stage, the inherent "high-tech factor" of functional clothing not only makes the clothing "born noble", but also stimulates the market's interest in sunscreen clothing and golf. Hot discussion of functional clothing such as clothing. Why was born noble? Beginning in the 1980s, a large number of functional clothing came out, such as massage clothing, magnetic therapy shoes, semiconductor stockings and other health clothing; there are also sanitary clothing such as sterilization clothing, sweatshirts, and moisture-repellent clothing; as well as shark-proof swimsuits and insecticide clothing. , Luminous clothing and reflective clothing and other safety clothing. A few years ago, there were also thermostats equipped with "tubular synthetic fibers". According to the change of temperature, the solvent in the tube would expand or contract with heat to change the distance between the tube and the tube, and finally to change the temperature of the human body. The purpose of perception. As the most advanced form of functional clothing, smart clothing is considered the "ultimate" wearable device. In fact, in the traditional process, adding a layer of functional coating to the fabric can achieve the functions of anti-ultraviolet and water-repellent. There are many kinds of functional clothing fabrics. One is the external function, that is, it has the same safety protection function as a bunker, such as windproof, waterproof, anti-cutting, anti-radiation, anti-static, fireproof, fluorescent, etc. Functional textiles refer to textiles that have their own basic use value and have antibacterial properties, except for mites, mildew, anti-virus, mosquito-proof, moth-proof, flame-retardant, anti-wrinkle and non-iron, water and oil repellent, UV protection, and Electromagnetic radiation, fragrance, magnetic therapy, infrared physiotherapy, negative ion health care, etc. one or more of the many effects.

Perhaps July and August overdrafted the polyester market demand in September. In September, the peak season for polyester market demand was not strong. Downstream polyester factories reduced prices for promotion, and rigid demand for PTA declined. PTA after skyrocketing Since the second half of last year, driven by the increase in crude oil prices, the price of PTA has also risen all the way, but its increase has always been weaker than that of the upstream PX, and most of the industry`s profit margin remains in PX. This situation changed in July this year. Taking advantage of the rapid depreciation of the RMB, the market expects that PTA will continue to destock in the second half of the year and the PTA production capacity will increase by 10+ points in the next year. PTA price and PX price difference Both rose rapidly. Of course, due to the short-term PTA price surge, it has brought tremendous pressure on the production cost of downstream polyester filaments, and it is difficult to form a good transmission. It can be said that the rise has lost the fundamental support, and there has been a hint of a callback. The author believes that due to the high price of crude oil and the market's judgment on the supply and demand of PTA in the next year, the callback is mainly to benefit the downstream polyester filament, and the amplitude should be within 10%. After the downstream gradually shifts the impact of the increase in cost. , PTA prices may even rebound. At this stage, major PTA manufacturers are still repurchasing PTA spot at a high price. The receipt of PTA major manufacturers is the only good thing in the current market. As of September 13, the average spot price of PTA in September was around 9,290 yuan/ton, and the PTA factory locked the spot price in September at a seven-year high. Even if downstream factories in the second half of September conflict with the high spot price of PTA and cause the PTA price to fall, according to the current start-up load of about 87% of downstream polyester, the decline in PTA spot will be limited. It is speculated that the average PTA spot price in September will be higher, and PTA settlement will be settled in September. Prices will also be at a multi-year high. The downstream of shrinking profits The growth of demand for polyester filament, the main downstream product of PTA, is relatively stable, basically maintaining above 5% per year, and there is always a long-term rigid growth demand for raw materials. Since it is currently in the peak season, Q3 is normally the annual demand high, and Q4 will still maintain good demand. Even from the past two years, the demand for Q4 is no less than that of Q3. But entering September, the industry`s gold, nine, and silver, ten positions have not yet appeared. The production and sales of polyester yarns in September were the lowest in the year, even lower than February when the Spring Festival was held. Mainly due to the overdraft of September market demand from July to August, the terminal weaving factory was unable to smoothly pass on the cost pressure caused by the early PTA and polyester surge, and the enthusiasm for polyester filament procurement was not high, and the loom load dropped to 66% in mid-September. Around this time, the demand for polyester filaments has declined. In mid-September, polyester filament factories started to cut prices for promotion, but the price cuts increased the market`s fear of falling, or it was difficult to substantially boost the demand for polyester filaments. In the survey of the two largest polyester filament companies in the country, Tongkun and Xinfengming, it is learned that due to strong terminal demand, polyester filament companies are not unacceptable to the price increase of PTA, mainly because they cannot The skyrocketing price of raw materials is transmitted to the downstream. If the price cycle is extended, it can actually be digested relatively smoothly. External macro factors China`s textile exports to the U.S. account for 17% of total textile exports. Among the US$200 billion additional 10% tariff items announced by the U.S., there are about 1,000 textile and apparel items, involving most textile raw materials, semi-finished products and a small amount of clothing accessories. Products, which are more related to polyester. In the short term, it seems that it will suppress the demand for polyester, which will affect the end demand of the entire industry chain. However, in fact, through re-export trade and transfer of production capacity to Southeast Asia, the final impact may only be some marginal changes in the growth rate of demand. Does not affect the overall supply and demand pattern. Conclusion In the long run, with the next year as the observation period, international oil prices will remain high, and the time for large PX production capacity will be delayed. PTA will only have a small increase in production capacity such as Xinfengming's 2.2 million tons/year, and the demand for polyester filaments will remain strong. The real impact of the trade war on the terminal is relatively small. In the short term, we are concerned about whether major PTA manufacturers continue to receive high prices. The downstream polyester factories have poor production and sales, and terminal weaving factories are complaining. Zhongyu Information expects that the short-term PTA market will fall within a narrow range.

Nanotechnology: Control atoms or molecules with nanometer (1 ~ 100nm) scale and enable them to exert new functions and more excellent characteristics. Nanotechnology has a "top-down method" that challenges ultra-fine processing and a "bottomup method" in which atoms and molecules are used to construct nanostructures in tens to hundreds of units. Features of nanofabrication: Fabric processing using nanotechnology has (1) A functional agent film is formed on the surface of a single fiber by self-organization technology, and the durability of pollen adhesion prevention processing, antifouling processing, etc. formed by this film, and the drastic improvement of these effects, (2) Not only the processed product with antibacterial and deodorant functions given to cotton fiber with nano silver particles and the antibacterial and deodorant properties it possesses, it should also be non-adhesive. (3) Nano-zinc oxide particles (microencapsulated by emulsion polymerization of glycidyl acrylate monomers) and UV-shielding processed products that form covalent bonds with cotton fibers using glyoxal resin are resistant to washing Performance has been significantly improved and other excellent features. From the perspective of environmental protection: Nanoparticles, especially when metals and their oxides are used, are dangerous to health and the environment. Some nanoparticles have been shown to be toxic to the lungs of rats and mice. In addition, there is the danger of ecosystem pollution to the food chain. Therefore, the evaluation of the health and environmental risks of nano-processing is indispensable.

There should be clear requirements for the testing methods and evaluation indicators of various functions of waterproof fabrics to prevent consumers from being misled and deceived during the purchase process. It is recommended that standard-setting units issue and improve relevant standards as soon as possible. On the one hand, it will help regulate the consumer market, provide a basis for consumers to choose to buy, and reduce blindness; on the other hand, it will also help guide production and provide enterprises with easy control of product quality. To increase the fairness of competition among various clothing brands. Waterproof fabrics are basically made of chemical fiber fabrics. When the outdoor environment is relatively dry, static electricity problems will occur. The clothes are easy to fuzz and pilling, easy to be contaminated with dust and dirt, and electrostatic adsorption close to the skin. The test method for the anti-sunlight and ultraviolet performance of textiles, the representation, evaluation and marking of the protection level, the test principle is to use a single or multicolor uv ray radiation sample, collect the total spectral transmission rays, and determine the total spectral transmittance t (λ), and calculate the UV protection coefficient upf value of the sample. Parallel beams can be used to illuminate the sample, and an integrating sphere can be used to collect all the transmitted light; or a light hemisphere can be used to illuminate the sample to collect parallel transmitted light. In actual operation, the testing instrument can automatically calculate the upf value and t(λ) of the sample. When the sample's upf value is greater than 50, it is expressed as "upf>50". According to this standard, when the sample's upf>40 and t(uva)av<5%, it can be called a "ultraviolet protection product". Existing national standards and industry standards, the evaluation indicators of each method are different, and the results obtained by using different test methods for antistatic fabrics are not comparable. The charge area density method can better simulate the electrification process of the waterproof fabric when it is actually worn, and is a more suitable method to test the antistatic performance of the waterproof fabric. The evaluation parameter of textile anti-ultraviolet radiation adopts the ultraviolet protection coefficient upf value, which represents the ratio of the average effect of ultraviolet radiation calculated when the skin is unprotected to the average effect of ultraviolet radiation calculated when the skin is protected by fabric.

The 2018 China International Textile Yarn (Autumn and Winter) Exhibition (abbreviated as the 2018 Yarnexpo Autumn and Winter Yarn Exhibition) opened in Hall 8.1 of the National Convention and Exhibition Center (Shanghai). "Green fiber" has become a hot topic during this yarn exhibition. This exhibition has become the most direct and effective display and business platform for the promotion and application of new chemical fiber technologies and new materials.

Polyester filament market: In the past week, the polyester filament market continued to show a declining state. The price trend of FDY took the lead to decline to varying degrees. Some manufacturers` FDY promotional prices expanded. Due to the decline in upstream raw material prices from the 14th to the 16th, the polyester factory With the increase in silk stocks, the market for polyester filaments is still sluggish. Some polyester manufacturers in various regions are declining the price of polyester filaments. POY is deeply lowered on weekends and DTY is also falling. The reason for the decline is that, on the one hand, it is affected by the weakening of upstream raw material support. On the other hand, downstream weaving companies have been cautious about the market outlook, and the principle of purchase is "quantity based on production." Therefore, market transactions have gradually faded. This week, the production and sales rate of polyester filament products in most factories was in the range of 50-70%. The quotations of mainstream FDY manufacturers have been lowered, mostly around 500 yuan/ton. In terms of sales, the sales of semi-gloss silks are relatively good, such as FDY50D/72F, 75D/72F, etc., mainly because the downstream artificial silk products are on the move. The demand for semi-gloss conventional filaments is general, mainly due to the weak sales of downstream conventional fabrics. This weekend, mainstream manufacturers FDY150D/96F offer prices between 11,800 and 11,900 yuan/ton. In the polyester filament market, FDY mid-denier semi-dull FDY100D/72F, 135D/36F products will be available for delivery, FDY135D/36F is mainly used for the production of filament Oxford cloth products, and at the same time FDY large bright yarn 30D, 40D series products are sold It's also not bad. DTY prices have been adjusted downwards, and DTY quotations have also been adjusted downwards. DTY150D/144F, a major major manufacturer, will offer prices at RMB 13,500-13,600/ton this weekend. Mainstream conventional products such as DTY150D/48F network have sporadic purchasing power. DTY75D/72F (network) and DTY75D black silk continued to maintain dynamic sales. In addition, DTY150D/288F market sales rebounded, mainly for the brushed fabric produced on water jet looms. POY maintains a weak adjustment status, but POY on weekends is deeply adjusted. Compared with last week, downstream companies are generally enthusiastic about POY purchases. The polyester filament market atmosphere is weak. The company`s market quotations are lowered by 300-500 yuan/ton. The filament market volume is not large, and its product inventory pressure is increasing. The latest quotations of major companies` POY are: POY75/72F at RMB 12,700-12,500/ton, and POY150/144F at RMB 11,900/ton, between 11,900 and 11,950. Recently, the upstream PTA raw materials have been weakened and adjusted. The entire polyester filament market has spread wait-and-see sentiment. Downstream weaving and texturing manufacturers have weakened their purchases of polyester filaments. They have insufficient purchase intentions for polyester filaments, and polyester manufacturers have polyester filament stocks. Continue to rise. Most people believe that, in the future, polyester filament yarns in polyester factories will still be mainly sold. Next week, the polyester filament market is unlikely to have a major trend, but there is one thing that can be sure that the downstream polyester filament holdings will be significantly reduced, and the restocking procurement node will soon be highlighted. Yarn market: In the past week, the sales of cotton yarns have increased, and the price trend has been relatively stable. It is understood that the air-jet looms in Shengze and the region have reached a certain scale and are currently planning to produce autumn and winter fabrics. Cotton and cotton-containing fabrics are still the mainstream fabrics. The 21s and 32s cotton yarns are particularly popular, and the current market prices are around RMB 19,600/ton and RMB 14,300/ton respectively. In the mixed yarn product series, the prices of individual varieties of polyester-cotton yarn declined slightly, and the shipments of 80/20 and 45s were larger, while sales of other varieties and specifications appeared to be average. The 40s/2 transaction volume of polyester and viscose yarns rose, and the price remained stable. The prices of rayon yarns are trending steadily, and the trading volume remains stable. The trading price of viscose staple fiber is temporarily stable, and the current average price is between 15,150-15200 yuan/ton. It is expected that the market outlook for rayon yarn will be moderately adjusted. The trend price of pure polyester yarn is weak, and the price is reduced by 200-300 yuan/ton this week. The current 45s market price is at 17,200 yuan/ton, and the price of polyester staple fiber is also weakly falling. The current average price is below 11,400 yuan/ton. It is expected that the price of pure polyester yarn will have a downward trend next week. ,

At present, most mobile phone cases with waterproof function must be made very thick at the expense of hand feel. However, an ultra-thin waterproof phone case recently launched by Japan may change our view. This ultra-thin waterproof case is only 0.25mm thick and the main material is polyurethane, which can tightly wrap the iPhone. According to the manufacturer, this protective case complies with the Japanese IPX8 waterproof standard, which means that it can at most ensure that your iPhone is not damaged in 10 meters of water. The screen part of the protective cover is made of acrylic, which will not affect the operation and use in normal times. In addition, because this protective cover is only 0.25mm thick, you can put on it and put on another protective cover of your choice without being affected at all. At present, this protective cover is compatible with iPhone and Samsung Galaxy S2 version for sale, and the price is 37 US dollars. In addition, the manufacturer is also preparing to produce an ipad version of the protective cover, priced at $50.

With the improvement of people's quality of life, outdoor sports are becoming increasingly popular. The performance of a submachine suit with three prevention characteristics is particularly important, ensuring that it can effectively block the invasion of rain and frost in damp places or walking in windy and rainy environments, and will not feel damp or cold due to water infiltration into the clothes. The "three preventions" refer to waterproofing, oil resistance, and stain resistance. By using the three preventions finishing agent to finish the fabric of the diving suit, the surface properties of the fabric are changed to prevent it from being easily wetted or stained by water and commonly used oil stains. The principle of its effect is to use the lotus leaf water repellent principle to reduce the surface energy of the textile, forming a water, oil, and stain repellent effect. CHYC ® FE-6500 three proofing finishing agent is a water-soluble fluoride suitable for fabrics such as cotton, polyester, nylon, etc. After being treated with three anti finishing agents, the fabric of the submachine jacket has excellent waterproof, oil resistant, stain resistant, and washable properties; After multiple washes, it still has excellent protective performance, with little impact on the breathability and feel of the original fabric. It does not contain PFOA (the content is lower than the detection limit value), which is environmentally safe. Environmentally friendly, stable, and washable CHYC ® FE-6500 three proofing finishing agent can be used for the three proofing finishing of various fabrics, endowing fabrics, especially cotton fabrics, with long-lasting washing resistance, water resistance, oil resistance, and stain resistance. It is suitable for household textiles, casual wear, stormtroopers, outdoor fabrics, and other fields.

As we all know, the triple proofing and easy decontamination finishing are two opposite processes. When they are combined on the fabric, they will have mutual influence. A better triple proofing effect will reduce the decontamination finishing effect, and vice versa. How can we make polyester cotton fabric have a good triple proofing and easy decontamination performance at the same time? It is very important to do a good job in the triple proofing and easy decontamination finishing of polyester and cotton fabrics. The triple proofing finishing of T/C fabric can prevent water, oil and other liquid stains from infiltrating into the fiber. The easy decontamination finishing of polyester cotton fabric makes the pollutants easy to be removed in the washing process. The triple proofing and easy decontamination finishing agent is a functional additive composed of special fluoride. It can make the fibers combine firmly through the processing of the triple proofing and easy decontamination in one bath. It can form a continuous triple-dimensional mesh film on the fiber surface area to cover the fiber, forming a new surface layer composed of low surface energy protozoa. Polyester cotton fabric has good water and oil resistance and easy decontamination performance, with water resistance of 4 levels, oil resistance of 4 levels, and easy decontamination of 3-4 levels, At the same time, it also has good washing resistance, and it still maintains excellent protection performance and easy decontamination performance after washing for many times. The triple anti easy decontamination finishing agent has good stability, simple operation process, and is suitable for soaking and rolling process; Safety and environmental protection, excluding APEO, PFOS and PFOA (the content is lower than the detection limit value), in line with export standards. The triple proofing and easy decontamination finishing agent with excellent waterproof, oil proof and easy decontamination properties can be used for the triple proofing and easy decontamination finishing of polyester, cotton and other textile fabrics, and is suitable for household textiles, automobile interior decoration, tooling and other fields.