Dyeing steps of polyester lanyard — Yiyixing

 Lanyards are common in daily life. Lanyards are not only decorations, but also decorations. They are now widely used in electronic USB flash drives, bank USB shields, employee badges, exhibition cards, mini speakers, mobile phones, flashlights, and work cards.Ballpoint pen, tag, sling. All electronic products that need to be portable can be used.

Every polyester lanyard needs to be dyed. Everyone can know from the various lanyards and polyester lanyards we usually use. At the same time, there are methods and tricks for dyeing polyester webbing. Yiyixing will introduce to you. What steps are needed to dye the polyester lanyard.

1. Fixation: Polyester webbing is the process of the connection between dye and fiber. The connection method varies with dye and fiber.

2. Diffusion: The dye adsorbed on the fiber surface diffuses into the fiber until the dye concentration in each part of the fiber tends to be the same. Because the concentration of the dye adsorbed on the fiber surface is greater than the concentration of the dye inside the fiber, it promotes the diffusion of the dye from the fiber surface to the inside of the fiber. At this time, the diffusion of the dye destroys the established adsorption balance, and the dye in the solution will continuously adsorb to the fiber surface, and the adsorption and desorption will reach the balance again.

3. Adsorption: When the fiber of the polyester webbing is put into the dyeing bath, the dye is first dispersed on the surface of the polyester webbing fiber, and then gradually transferred from the solution to the surface of the fiber. This process is called adsorption. As time goes by, the dye concentration on the fiber Add gradually, but the dye concentration in the solution gradually decreases. After a period of time, the equilibrium state is reached. The reverse process of adsorption is desorption. In the dyeing process, adsorption and desorption exist together.