Development of Reactive Dyes

Reactive dyes are also called reactive dyes. The analysis of reactive dyes contains active groups that can react with hydroxyl groups in cellulose and amino groups in protein fibers. When dyeing, reactive dyes will form covalent bonds with fibers, so they have good fastness. Reactive dyes can be widely used in the dyeing of cotton, linen, silk, wool and nylon materials. Reactive dyes have the characteristics of simple method, bright color, good level dyeing, complete color spectrum and low cost, so they have attracted the attention of merchants and have a wide range of applications.

The Services

In the process of dyeing materials such as silk products, cotton products, wool products and linen products, reactive dyes will form chemical bonds with fibers, so reactive dyes will show good fastness. Generally, reactive dyes need to add inorganic salts during the dyeing process, which will reduce the utilization rate of dyes. Therefore, the loss of dyes can be reduced by designing reactive dyes. Alfa Chemistry's researchers have many years of experience in the field of dyes, and can provide development services for reactive dyes including but not limited to:

• Development of triazine reactive dyes
• Development of pyrimidine reactive dyes
• Development of vinylsulfone-based reactive dyes
• Development of phosphonic acid-based reactive dyes

In order to optimize the performance of reactive dyes and reduce the loss and waste of dyes, researchers continue to explore new methods for improving the dyeing of reactive dyes.

Structure of reactive dyes

The chemical structure of reactive dyes is shown in the figure below. Its structure is relatively simple and can be represented by W-D-B-Re, where W is a water-soluble group, D is a dye matrix or chromophoric group, and B is a linking group (some dyes have no bridging group ), Re is a reactive group. The molecular structure of reactive dyes contains reactive groups, and a large number of hydroxyl groups and amino groups present on the substrate to be dyed will undergo chemical reactions to form stable covalent bonds. Therefore, the use of reactive dyes for dyeing has the advantage of good color fastness.

Figure 2. Structure of a reactive dye molecule

Service Principle

• Alfa Chemistry will always adhere to the goal of high quality, integrity, unique brand and long-term development.
• The company philosophy is that the needs of customers are the direction of our struggle.

Quality Control System and Service level

Alfa Chemistry is a professional supplier of chemical dyes, providing customers with a wide range of chemical dyes, including high-efficiency reactive dyes. Alfa Chemistry also pays attention to the development and design of environmentally friendly dyes, conforms to the needs of the development of the dye market, and can serve the dye industry faster and better. It is worth mentioning that Alfa Chemistry has a sound and complete quality control system, which can strictly control the quality of chemical dye products and improve the level of development services, making unremitting efforts to meet the needs of customers.

Reactive dyes are widely used in dyeing in daily life, and can be applied to the dyeing of various products. Researchers at Alfa Chemistry have long developed new technologies for wider applications. If you are interested in our services or want to know more information, please contact us immediately.

It is important to note that our products are for research use only and are not for clinical use.