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Showing posts with the label textile chemicals and auxiliaries

Auxiliaries for Cotton

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  Cotton dyeing is operated in a certain temperature, time, PH value and the required dyeing agent for cotton. The common dye fixing agent for cotton   and printing include scouring agent, dye fixing agent, penetrating agent and so on. Choosing cotton fabric dyeing and finishing process is mainly based on the varieties, specifications, requirements of finished product.   In the process of traditional cotton dyeing and printing, in order to avoid the interference reaction between the dyeing agent for cotton in the aqueous solution, dyeing and finishing are generally separated. Nowadays, under the vacuum conditions, the reaction between components can be effectively avoided by dyeing agent for cotton, finishing agent or the mixture, and ensure that dyeing and finishing can be carried out simultaneously, thus simplifying the whole process. In addition, under the vacuum conditions, the atomized mixture of dyeing agents for cotton absorb on the fabric, which avoids a lot of po...

What is wetting agents in textile processing

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  Wetting agent definition   Substances that make solid materials more susceptible to water immersion. By reducing its surface tension or interfacial tension, so that the water can be expanded on the surface of solid materials, or penetrate the surface, and the solid material wetting. Usually some surfactants, such as sulfonated oil, soap, open powder BX and so on. Also can be soy lecithin, mercaptan, acyl hydrazine and mercaptan acetal, etc. Surfactants are composed of hydrophilic and lipophilic base, when contact with the solid surface, hydrophilic Foundation attaches to the solid surface, the lipophilic base outward to the liquid, so that the liquid on the solid surface to form a continuous phase, which is the basic principle of wetting.   Characteristics of wetting agent for textile   W etting agent for textile dyeing  c haracteristics: 1, acid, alkali-resistant, resistant to hard water, water-soluble strong, 2, with infiltration, leveling, wettability, good...

The Characteristics of Superfine Fiber And the Selection of Leveling Agent

Superfine fiber is a new type of synthetic fiber. It is through the polymer chemical and physical modification, application of spinning and processing technology to make ultra fine fiber profile, using composite and mixed fiber; and to apply multiple deformation and new surface treatment and other means, the makes synthetic fiber have various characteristics of natural fibers, and gives the synthetic fiber the comprehensive performance of natural function, style sensory, etc.. The new synthetic fibers, such as single fiber fineness, cross sectional morphology, surface morphology, shrinkage, and polymer structure, are quite different from those of conventional synthetic fibers. Therefore, there are many differences in the process of spinning, weaving, dyeing, and finishing of conventional synthetic fiber and conventional synthetic fiber. This is related to the evenness in dyeing process. Because of the dynamic equilibrium between the three states of the disperse dyes, the transition...

The General Steps for Examining the Quality of The Appearance of Textile

The contents for examining To examine the quality of the appearance of textile starts from the accuracy of colors The inspection process is as follows: to test the accuracy of color; raw materials, weaving defects, defect inspection and defect treatment before dyeing defect and finishing defects, in accordance with the standard requirements to determine whether to cut off or drop size. When the color accuracy test is in dispute, the dispute can be settled down according to the measurement results of the electronic color matching system. 1) Material defects The raw materials have obvious defects like big belly yarn evenness is not uniform, there are too many joints, yarn, fiber, silk, specific bad Spandex Covered Yarn Quality, blended yarn uneven mixing and so on, which are likely to cause the fabric etc.. 2) Weaving defects Weaving defects come from many aspects, such as equipment itself, raw materials, environment, temperature and humidity, operator technical level, fabric structu...