Basic Dyes | Properties of Basic Dyes

Base pigment:

And basic dyes are so called because they are rules of organic salts. And basic dyes also called cationic dye in solution because it ionizes the staple dye molecule, causing the color component to become positively charged radical action.

The features of the basic dyes

1. The outstanding features of the soul is the brilliance and chroma of their colors.

2. bright colors that have been made from basic dyes not usually occur with other dye layers.

3. Many basic dyes soluble in water sparingly.

4. Add glacial acetic acid helps quickly solve the basic dye in water.

5. Basic dyestuffs pronto soluble in alcohol or menthol mind.

6. basic dyes are low in light stability, and vary with respect to washing fastness of moderate to poor.

7. important feature of more common dyes is that they will be combined with tannic acid to form insoluble compound subjected mineral battery-acid is absent.

8. can also improve the wet fastness of dyeings basic protein fibers by tanning afternoon. It is composed of a dyed material after treatment with tannic acid to form an insoluble complex, which reduces the leaning to migrate.

9. basic dye will combine with directly or sulfur or acid dyes. So it can not be used side by side in the same bathroom. But the basic dyes are used in the cotton after processing or other directly dyed color materials. Here direct dye works as pungent.

10. When dealing with an agent most basic dyes limit get converted into color leuco fewer vehicles, and return to the original color oxidizers or even exposure to air.

11 can be removed and the basic dyes of the material by boiling with cut ethanoic acid or hydrochloric acid.

12. Canonic dyes used for wool products when asked vivid hues and private that can not be obtained with acid dyes.