Basic Dyestuff - Names and Identifiers
Basic Dyestuff - Introduction
Basic dyes are a class of organic dyes with basic groups and have the following properties:
1. alkaline solution in the bright color, with strong dyeing ability.
2. Under neutral and acidic conditions, the dye color will quickly fade or disappear.
3. basic dyes soluble in water, showing good solubility.
4. It has good adhesion on organic substances such as cellulose and protein.
Basic dyes are mainly used in textile dyeing, widely used in dyeing cotton, linen, silk, wool and other fiber materials. Due to the good affinity of basic dyes to fibers, dyed textiles have bright, long-lasting colors.
The preparation method of basic dyes usually adopts the method of synthesizing organic dyes. The main synthetic methods include azo method, phenolphthalein method, reactive dye intermediate method and so on. These methods generally convert the starting material into the form of the target dye molecule through a series of steps through a chemical reaction.
When using basic dyes, you need to pay attention to the following safety information:
1. Basic dyes have high dyeing and possible skin irritation. Gloves and protective glasses should be worn when using.
2. Avoid contact with skin and eyes. If contact occurs, rinse immediately with plenty of water and seek medical help in time.
3. When storing alkaline dyes, it should be sealed to avoid contact with other chemicals to prevent chemical reactions and leakage.
4. in the use of basic dyes, pay attention to ventilation, avoid prolonged inhalation of its vapor.
Last Update：2024-04-09 21:04:16