Dyeing agent Dyeing is the main body of the dyeing process. Different fiber fabrics use different varicolored agents and are processed according to different processes. The dye processing auxiliaries include cosolvents, dispersants, color developing agents and phthalocyanine auxiliaries. The dyes used in dyeing are not direct dyes, vat dyes, reactive dyes, phthalocyanine dyes and insoluble azo dyes.
Leveling agent Leveling agent includes natural fiber leveling agent, synthetic fiber leveling agent and blended fabric leveling agent, etc. The condition of the leveling agent is that the dye can be slowly absorbed by the fiber or the dark part of the dye can be turned to lighter. The part spreads and does not reduce the fastness of dyeing. All auxiliaries with slow-dyeing and migration-dyeing effects are called leveling agents.
There are three types of fixing agents, cationic surfactants, non-surface-active quaternary ammonium salts, and resin-based fixing agents. The fixing agents can form dyes into water-insoluble dye salts or increase dye molecules. It is large and hardly soluble in water to improve the firmness of dyeing.
Dispersant Dispersant is an indispensable auxiliary in dye processing and dye application. It can disperse dye particles up to about 1μm and help particles
Crush the particles to maintain dye dispersion stability. The dispersants are mostly various types of surfactants, including anionic, cationic, non-ionic, amphoteric and polymer types.
Fluorescent whitening agent Fluorescent whitening agent is referred to as FWA. With the help of optical complementary color, the yellow-brown pigment on the fabric that cannot be removed by chemical bleaching becomes whiter, and the whiteness is more beautiful due to the increased brightness.
Most softeners have fragrances. Fragrances and dyes are mostly petroleum derivatives and contain benzene. If the manufacturer uses poorer-grade raw materials, it will cause skin irritation. During the washing process of clothes, the fine fibers are often entangled, tangled together, or even broken. After the clothes are washed for many times, the alkaline effect of the detergent will affect the inherent smoothness, extensibility and elasticity of the fibers. The thing is that the whole piece of clothing looks old and invisible, and feels harder to the touch. The more the clothes are washed, the more obvious the feeling. The function of the fabric softener is as if a protective film is evenly applied to the surface of the fabric fiber. Due to the absorption of the softener on the fiber surface, the friction coefficient between the fibers is reduced.