Since always, colours are associated with us (to our strengths, weaknesses and personality type) in one way or the other.
Here, basic colouring plays an important role to make your clothing more colourful, thus the life too.
Also known as cationic dyes, basic dyes are the salts of organic bases. The name cationic is given because in solution, the molecule of the basic dye ionizes.
More elaborately, cationic dye molecule has a positive charge in contrast to other dyes which have either no charge at all or if they do, then it is a negative charge.
The main purpose of this document is to add more to your pool of knowledge about basic colouring substance.
Types of basic colouring substances:
Depending upon the class they belong and their chemical structure, basic dyes can be categorized as follows:
Group-1: Derivatives of di-phenyl amine.
Group-2: Derivatives of tri-phenyl methane. For example, methyl green.
Group-3: Derivatives of thio-zinc. For example, methylene blue.
Group-4: Derivatives of azo group. For example; Bismarchk brown
Now, as we are done discussing the sorts of colouring substances, let us have a look at few major characteristics of these. Here is a list of some properties of cationic dyes:
High and brilliant shades achieved from these dyes usually do not occur with other classes of dye.
Easily dissolves in alcohol but not in water. But with the help of glacial acetic it can quickly dissolved in water.
In solution dye protein is positively charged (cation).
These colouring substances are little down in fastness to light.
Specially used for jute fibre.
They can easily be removed from the fabric just by boiling it with dilute acid or hydrochloric acid.
In addition to their use for fabrics, these colouring substances are also used for wooden goods for bright shades which cannot be attained with acid dyes.
Cationic dyes can also be used for wool, silk and acrylic dying. In addition, they are used for making typewriter ribbons, inks and dyeing leather.
It is advised that dyers should prefer these dyes in paste or liquid form, over powdered form. For health and safety purposes, wear gloves and install canopy hood over dye bath.
If you are reliable and cost-effective manufacturers of basic dyes and other chemicals.