Polyester Lanyard Dyeing Needs Steps

Lanyards are common in daily life. Lanyards are not only decorations, but also decorative. They are now widely used in electronic USB flash drives, bank USB shields, employee badges, exhibition cards, mini stereos, mobile phones, flashlights, and work cards. , ballpoint pen, tag, sling. Any electronic product that needs to be easily carried can be used.

Every polyester lanyard needs to be dyed. This is known from the various lanyards and polyester lanyards we usually use. At the same time, there are methods and tricks for dyeing polyester webbing. Let me introduce to you what steps are needed to dye polyester lanyards.

1. Fixation: Polyester webbing is the process of the connection between dyes and fibers. With different dyes and fibers, the connection methods are also different.

2. Diffusion: The dye adsorbed on the fiber surface diffuses into the fiber until the dye concentration of each part of the fiber tends to be consistent. Since the dye concentration adsorbed on the fiber surface is greater than the dye concentration inside the fiber, the dye is promoted to diffuse from the fiber surface to the fiber interior. At this time, the diffusion of the dye destroys the established adsorption equilibrium, and the dye in the solution is continuously adsorbed to the fiber surface, and the adsorption and desorption reach an equilibrium again.

3. Adsorption: When the fibers of the polyester webbing are put into the dye bath, the dyes are first dispersed on the surface of the polyester webbing fibers, and then gradually transferred from the solution to the surface of the fibers. This process is called adsorption. As time goes by, the dye concentration on the fibers The concentration of dye in the solution is gradually reduced. 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.