Depending on the network type of nozzle, the first and second heat oven temperature, raw ... double fdy fabric feels soft and smooth, often used for weaving silk fabric.
In PP and PE extrusion coating process,coating material is needed to be more stringent than which of yarn extrusion process, bad choice of raw materials, lack of liquidity and will produce insufficient peel strength. Thus, the choice of raw materials to pay attention to the performance of the following points:
a) Need nice flowing propertiesGood flowability to a uniform film thickness of the coating is uniform. Because of the longer die coating, in particular coated on both sides at once folded length of die head, double head, with a die width tarpaulin, the material in the die of the melt flow a longer distance through a relatively long time, resistance in the die is large, a good resin flowability is not selected, it will cause uneven thickness of the film , the flow rate range, the die lip temperature is not such , there will be a partial loss of viscoelasticity cooling, and braid cloth adhesive is not strong.
b) Need high melt strengthMelt flowing out from the die to have a certain viscoelasticity, that is higher melt strength. As the melt cast into the distance is a woven traction stretching process, there is some traction ratio, it requires a certain degree of melt strength to pull off without being pulled or broken. The distance from the mold woven mouth, because inertia weight and traction speed die due to reasons, the melt flow properties can not be good, in order to avoid uneven vertical thickness of the film or the heap , so the resin melt index can not too high. A melt index of polypropylene material used for flat yarn is approx value 2~6g/10min, it is inappropriate for the coating, the flow is too slow, prone to the phenomenon of uneven thickness.
c) Need good thermal stabilitySince the coating is carried out under high temperature conditions, the extrusion temperature is typically about 290 higher than yarn extrusion material. Melting the resin coating material in contact with air during the film, the surface oxidation reaction of a carbonyl group, to increase the adhesion capability. However, the high temperature causes the polyolefin resin, particularly polypropylene, thermal aging. And thus to choose a good thermal stability of the resin.
Types of coating materials market is currently more. Divided into two categories according to the type of raw materials, mainly are PP and PE. In principle, the substrate should be selected PP polypropylene woven material for the coating, the substrate is a woven polyethylene PE coating material should be selected. According to the production process can be divided into homopolymers and copolymers. Domestic material coated with homopolymers based. Currently, due to the different coating materials and the second substrate, the coating material on the functional requirements are different, so we had to blend modified based special coating material. Special coating material, although the scope is small, but highly targeted, can be applied to substrates coated with specific characteristics and access it needs. Such as low temperature coating materials, and anti-aging materials.
Fire resistant fabric is a special fabric that is used to resist the fire. It is made up of synthetic as well as natural fibers. This fabric is blended with flame resistant chemicals. Fire resistant fabrics are used in various applications such as industrial protective clothing, defense & public safety services and transport.Fire resistant fabric market is primarily driven by increasing demand Spendex Satin from chemical industry. Development in technologies and stringent regulations imposed by the government is expected to trigger the growth of the global fire resistant fabric market. Rapidly growing stipulate from the oil and gas industry is also expected to augment the fire resistant fabrics market.
The report segments the global flame resistant fabric market based on key applications such as industrial protective clothing, law enforcement and firefighting services, transport and others such as home textiles. It provides analysis of the key regional markets for flame resistant fabrics such as North America, Europe, Asia Pacific, Latin America and Middle East & Africa. This report also provides further bifurcation of region on the country level. Major countries analyzed in this reports are U.S., Germany, France, UK, China, Japan, India, and Brazil. This study includes regional as well as application market in terms of volume (million square meters) and revenue (USD million).
The flame resistant fabrics report also includes analysis of key applications with the help of the market attractiveness tool.Based on application segmentation, industrial protective clothing accounted one of the largest shares of the cumulative demand for flame resistant fabrics. In terms of regions, fire resistant fabric market was dominated by Europe and further expected to continue this trend owing to growing demand in the oil and gas industry and stringent regulations set by the governments in the region. In addition, Asia Pacific was the second highest contributor for fire resistant fabric market. In order to give the users of this report a comprehensive view on the fire resistant fabric market, we have included a detailed value chain analysis. To understand the competitive landscape in the market, an analysis of Porter’s Five Forces model for the fire resistant fabric market has also been included. The study encompasses a market attractiveness analysis, wherein product segments and application segments are benchmarked based on their market size, growth rate and general attractiveness.
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