dyestuff which is applied to substrate in neutral/slight alkaline
dye bath at a boiling point is direct dye. Our company makes available a
large number of shades, from blue, yellow, orange, brown to red and
green. These dyes are applied on fabrics ans garments made from cotton,
silk, rayon, linen, leather, wool, etc. Direct dyes can give vibrant
shades to textile, but for strong wash-fastness, the textile has to be
passed through after treatments, like cationic dye fixing. These dyes
can be categorized into Class A, Class B and Class C. Soluble in water,
these dyes without or lesser addition of sodium chloride or calcined
Glauber's salt creates lighter color shades on yarns and textiles.
During dyeing process, the properties which are given utmost importance
are dyeing temperature, rate of heating, time, dye solubility,
concentration of electrolyte, use of leveling agent, etc.
- Apart from dyeing textiles, these dyes can also be used as pH indicator and biological stains.
- In chemical nature, these dyes are salts of complex sulfonic acids.
- Many textile companies dye pure ans blended yarns and textiles in HTHP dyeing machines.
- Get all classes of direct dyes at competitive prices.