Rhodamine b dye belongs to a BASIC DYES. It is a green fluorescent powder. It is a very important chemical raw material.

The dye will not change color at high temperature. Its performance is excellent and widely welcomed by people.

Rhodamine b dye is mainly used for dyeing and finishing of acrylic fiber, silk, wool, diacetate fiber and cotton fiber.

It has good fastness and will not fade after washing. Rhodamine b dye can also dye leather, paper, hemp, bamboo and wood, and make color lakes. Standard dyes are also widely used abroad to determine the saturation value of acrylic fiber and the saturation factor of cationic dyes.

In order to better play the role of rhodamine b dye and enhance its dyeing effect, the following methods need to be understood.

1. Salt and basic rhodamine b anion can have certain mutual charge repulsion. After participating in salt electrolyte solution, many positively charged sodium ions are connected with dye anions, adhere to charge neutrality, greatly reduce the level in the dyeing process, promote the close touch between fiber surface and dye molecules, and reduce the concentration difference between dye solution and fiber interface, Enhance the printing and dyeing effect of dyes and fibers.

2. Because cellulose fiber will have surface potential in neutral or weakly basic dyes, adding salt to magenta can enhance the dye uptake. The electric ion energy of salt dissolved in water decreases the charge effect in the process of fiber dyeing. Therefore, it can promote the dyeing effect of rhodamine.

3. Using rhodamine b dyeing can be divided into three periods: adsorption, dispersion and fixation. Do not color too fast during the adsorption period. If you participate in the electrolyte during the adsorption period, you can cause dye collection and uneven dyeing. If the electrolyte participates halfway, you can not only avoid the above situation, but also further improve the printing and dyeing process.

The above is the sharing of some knowledge related to rhodamine b dye CAS 81-88-9. It can be seen that its performance is still very advantageous compared with ordinary dyes. For more information welcome contact us.

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