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| What are the dyeing auxiliaries and how to use them? |
| Hits：3223 AddTime：2021/1/29 10:03:50 |
| Dyeing agent is the main body of dyeing process. Different fiber fabrics use different dyeing agents, and in accordance with different processes, dye processing aids include cosolvent, dispersant, chromogenic agent and phthalocyanine additives. Dyes used in dyeing are not direct dyes, vat dyes, reactive dyes, phthalocyanine dyes and insoluble azo dyes. I would like to take this opportunity to share with you what are the dyeing auxiliaries and what are their uses? Leveling agents include natural fiber leveling agent, synthetic fiber leveling agent and blended fabric leveling agent. The condition of leveling agent is that the dye can be slowly absorbed by the fiber or the dark part of the dye can diffuse to the light part without reducing the fastness of dyeing. All auxiliaries with retarding and transferring effects are called levelling agents. There are three kinds of fixing agents: cationic surfactants, quaternary ammonium salts without surface activity and resin fixing agents. Fixing agents can make dyes form dye salts insoluble in water, or make dye molecules increase and insoluble in water, so as to improve the fastness of dyeing. Dispersant is an indispensable auxiliary in dye processing and dye application. It can disperse dye particles to about 1 μ m, which is helpful for particle crushing and maintaining the stability of dye dispersion. Dispersants are mostly various types of surface agents, including anionic, cationic, nonionic, amphoteric and high molecular. FWA, a fluorescent whitening agent for short, can whiten the yellow and brown pigment on the fabric that cannot be removed by chemical bleaching with the aid of optical complementary color. Due to the enhanced luminosity, the whiteness is more brilliant. Most of the softeners have fragrance, most of the aromatics and dyes are petroleum derivatives, which contain benzene. If the manufacturer uses poor grade raw materials, it will also cause skin irritation. In the process of washing clothes, the small fibers are often entangled, tangled together, or even broken. After washing clothes for many times, the alkaline effect of detergent affects the inherent smoothness, extensibility and elasticity of the fibers, which shows that the whole clothes look old and shapeless, and feel stiff when touching. The more times the clothes are washed, the more obvious the feeling is Obviously. Jiangsu Hai'an petrochemical plant is located in Hai'an Industrial Park. It was founded in 1972 and changed into a joint-stock enterprise in 1997. After more than 30 years of development, the enterprise innovates the world's advanced production technology independently, owns the patent technology of clean production of non-ionic surfactant, and has an annual production capacity of 80000 tons of industrial additives, The enterprise has passed the ISO9001:2000 international quality management system certification, and has the right of self import and export. The factory has become a well-known green enterprise in Nantong, Jiangsu Province. Factory mainly produces various surfactants, industrial additives. Our products include leveler, emulsifier, dispersant, penetrant, detergent, softener, additive, antistatic agent, scouring agent, thickener, defoamer, pearlescent agent, demoulding agent, fixing agent, pesticide emulsifier, chemical fiber oil agent, polyether, polyethylene glycol, polypropylene glycol monoester, span, tween, alcohol ether phosphate, polyol ester, etc It is widely used in textile, printing and dyeing, chemical fiber, dyestuff, medicine, pesticide, chemical fertilizer, rubber, plastic, food, paper, leather, daily chemical, coating, metal processing, environmental protection, concrete and other fields. |
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