Application Scope of Colour Fixative

Basic Concept and Principle of Colour Fixative

A colour fixative is a chemical compound composed of dye and fixing agents, used for dyeing various materials. The principle involves a chemical reaction that binds dye molecules to the dyed material, achieving a stable colouring effect. Colour fixatives come in different types and formulations depending on the application field and the characteristics of the material being dyed.

Application Scope of Colour Fixative

Application in the Textile Industry

In the textile industry, the colour fixative is widely used for dyeing various fibers such as cotton, linen, silk, wool, and blended fabrics. It combines with the fibers to provide excellent wash fastness, light fastness, and rub resistance, while remaining environmentally friendly.

Application in the Leather Industry

In the leather industry, colour fixative is mainly used for dyeing leather products like shoes and belts. Compared to other dyes, it has minimal impact on the texture and feel of the leather during application, offers longer durability, and better light resistance, making it suitable for producing high-quality leather goods.

Application in the Paper Industry

In the paper industry, colour fixative is primarily used for products requiring stable colouring, such as labels and cards. It enhances colour vividness and durability, improves print quality, and reduces problems like colour bleeding and fading.

Application in the Food Industry

In the food industry, colour fixative is used for colouring food and beverages. It helps maintain colour stability and enhances the visual appeal of food products. However, its use in food must comply with strict laws and regulations, ensuring controlled dosage and quality.

Precautions in the Use of Colour Fixative

• The dosage of colour fixative should be determined based on the type of dye, usage environment, and dyeing material. Overuse or underuse should be avoided.

  
  

• Attention should be paid to the compatibility between the dye and the fixative. The right combination ensures effective fixation.

  
  

• Methods of applying colour fixative include cold soaking, hot soaking, spraying, and padding. The appropriate method should be selected based on the dyeing material.

  
  

• During use, colour fixatives should be protected from aging, contamination, and water pollution. Operations should be conducted in a dry, ventilated, and clean environment.

  
  

In summary, colour fixative is an essential dyeing chemical widely used in the textile, leather, paper, and food industries. It enhances the colour stability, durability, brightness, and appearance of dyed materials. At the same time, proper attention must be paid to dosage control, compatibility, application methods, and environmental safety during use.