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Textile coating is a surface coating material used in textiles to increase the functional properties of textiles. Waterproofing is one of the important functions of textile coating. The waterproof performance of textile coating depends on many factors such as the type of coating material, the technical level of coating process and the use conditions of coating. This paper mainly discusses the waterproof performance of textile coating and its influencing factors.
First of all, the waterproof performance of textile coatings is closely related to the choice of coating materials. The coating material can choose organic coating agent, inorganic coating agent or its composite material, such as polyurethane, fluorocarbon, etc. These materials have good water resistance and water penetration resistance, which can effectively prevent water from entering the interior of the textile. In addition, by choosing a coating material with good hydrophilicity, the self-purification effect of the liquid can be achieved, so that moisture and pollutants slide off without adhering to the surface of the textile, keeping the textile dry.
Secondly, the technical level of the coating process is also one of the important factors affecting the waterproof performance of the textile coating. Common coating processes include brush coating, roll coating, impregnation and so on. The selection of the process should be determined according to the characteristics of the coating material and the textile. Brush and roll coating are relatively simple and commonly used coating processes that can evenly coat coating materials over a large range. The dip coating can make the entire textile completely impregnated in the coating material, so as to achieve a better waterproof effect. In addition, the waterproof performance of the coating can be controlled by adjusting parameters such as the thickness and viscosity of the coating.
Again, the conditions of use of the coating will also have an impact on its waterproof performance. Textile coatings need to have good waterproof performance under different conditions of use. For example, indoor textiles generally only need to have good moisture resistance; Outdoor functional textiles need to have rain, snow, wind and other functions. Therefore, when designing textile coatings, it is necessary to fully consider the waterproof requirements of the coating under different conditions of use, and select the appropriate coating materials and coating processes.
In addition, the waterproof performance of textile coatings is also affected by other factors. For example, factors such as the fabric structure of the textile, the weaving density of the textile and the surface treatment of the textile will affect the waterproof effect of the coating. The tightness and porosity of the fiber structure will affect the penetration rate and amount of water, which will affect the waterproof performance of the coating. The higher the weaving density of the textile, the better the waterproof performance of the coating is usually. Surface treatment can improve the waterproof performance of the coating by increasing the hydrophilicity of the textile surface.
In general, the textile coating has a certain waterproof performance, but the waterproof effect depends on the comprehensive influence of many factors. The choice of coating material, the technical level of the coating process, the conditions of use of the coating and the factors of the textile itself will have an important impact on the waterproof performance of the coating. In practical applications, these factors should be considered according to the specific needs of the selection of appropriate textile coating materials and processes to improve the waterproof performance of textile coatings.
