DYESTUFFS

DYEING

Dyeing is the process of Adding Colour to textile products like Fibers, Yarns, and Fabrics. Dyeing is normally done in a Special Solution containing Dyes and Particular Chemical Material. After dyeing, dye molecules have uncut chemical bond with fiber molecules. The Temperature and Time controlling are two key factors in dyeing.

CONVENTIONAL DYES

I. DIRECT DYESTUFFS

Direct Dye is a class of dyestuff that are applied directly to the substrate in a Neutral or Alkaline bath. They produce full shades on Cotton and Linen without moderating.

II. ACID DYESTUFFS

Acid dyes are highly water soluble and have better light fastness than basic dyes. They are effective for protein fibers such as Silk, Wool, Nylon and Modified Acrylics. As a group, acid dyes can be divided into two sub-groups : Acid-Leveling or Acid-Milling.

III. REACTIVE DYESTUFFS

Reactive Dyes are capable of reacting chemically with a substrate to form a covalent dye substrate linkage. They have good fastness properties owing to the bonding that occurs during dyeing. Reactive dyes are most commonly used in dyeing of cellulose like Cotton or Flax. As a group reactive dyes can be divided into sub-groups : H, HE, ME, VS and M.

SPECIALITY DYES

I. LUMINOUS DYESTUFFS FOR COTTON

At EXEL we have launched Luminous Neon Dyes for Cotton with the below advantages:

• Monopoly. There is no competition
• - Monopoly. There is no competition.
• - It's Very simple and easy to dye (Cotton + Our Dye + Salt) and your dyed product is ready.
• - Dyeing process time is just 45 minutes at boiling temperature
• - Uniformity and even dyeing.
• - Cotton treated with our luminous dyes car be easily re-dyed
• - Machines remain clear and no need for thorough washing of machines
• - At low percentages you get bright luminous neon shades
• - Consumer also executes FastTrack orders because of hassle-free speedy dyeing

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