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Bifunctional Reactive Dyes

Price 70 INR/ Kilograms

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MOQ : 500 Kilograms

Bifunctional Reactive Dyes Specification

Grade
Industrial

Rubbing Resistance
Excellent on suitable substrate

Solubility
High in water

Purity
>=98% (varies with grade)

Density
1.2 Gram per cubic centimeter(g/cm3)

Taste
Odorless, not intended for ingestion

Resistance
Good washing, light, and perspiration fastness

Size
Customized packaging (10 kg, 25 kg, 50 kg bags)

HS Code
320416

Strength
100% (standard), variable upon customer need

Shape
Fine Powder / Granular

Poisonous
No under normal conditions

Water Resistance
Excellent

Molecular Formula
Variable, based on specific dye type

Shelf Life
2 Years under recommended storage condition

Application
Textile Dyes, Cellulosic Fiber Dyeing

Smell
Odorless

Solvent Color
Color in water according to type

Moisture (%)
<1.5%

Structural Formula
Variable, mixture contains both Vinyl Sulfone and MCT/other reactive groups

Usage
Textile Dyeing and Printing

Physical Form
Powder or Granules

Dyeing Method
Exhaust, Continuous, Cold Pad Batch, Pad Dry Pad Steam

Ionic Nature
Anionic (as supplied)

Salt Required
Common salt/sodium sulphate used during dyeing

Fastness Grade
Grade 4-5 (washing, light, perspiration; as per ISO standards)

Dischargeability
Good; suitable for discharge printing applications

Eco-Friendly
Meets environmental and ecological safety standards for textile use

Reactive Groups
Contains two reactive groups; typically Vinyl Sulfone and MCT (Monochlorotriazine)

Main Markets
Global: South Asia, EU, North America, Middle East, Africa

Packaging Type
HDPE Bags, Fiber Drums, Carton Boxes

Compatibility
Compatible with most standard dyeing auxiliaries

Fixation Temperature
60-80C (typical for exhaust or padding method)

Bifunctional Reactive Dyes Trade Information

Minimum Order Quantity
500 Kilograms

Supply Ability
50000 Kilograms Per Week

Delivery Time
3-7 Days

About Bifunctional Reactive Dyes

We are amongst the prominent manufacturers and exporters of Bifunctional Reactive Dyes, which is a type of reactive dye. This is ideal for dyeing woolen and cashmere fabrics. These dyes maintain perfect physical state of wool and cashmere after dyeing. Bifunctional Reactive Dyes are composed from improved high coloring strength neutral dye and reactive dye. We welcome the inquiries of our customers for meeting their demands.

Some of the notable features of S Type Dyes are as follows:

Good sublimation fastness property
Can control heat treatment process after dyeing
High temperature exhaustion property
Maintain perfect physical state of wool and cashmere
Very close dyeing properties
Complete chromatogram

Application : S Type Dye is perfect for dyeing woolen and cashmere fabric.

MOQ 50kg :

SHADES	PRODUCTS	C. I. NAME	CAS NO.
	Lemon S3G	NA
	Yellow S-3R	NA
	Deep Orange S-4R	NA
	Deep Cherry S-D	NA
	Red S-B	NA
	Ruby S-3B	NA
	Ocean S-R	NA
	Dark Blue S-GL	NA
	Deep Night S-R	NA
	Black NN	NA
	Super Black G	NA
	Super Black R	NA

Superior Dye Fixation and Fastness

Harnessing the power of two reactive groupsVinyl Sulfone and MCTthese dyes achieve robust fixation on cellulosic fibers at optimal temperatures (6080C). The bifunctional chemistry elevates both color yield and fastness, making them ideal for diverse textile applications, including garment, home textiles, and industrial fabrics.

Versatile Application Methods

Bifunctional Reactive Dyes are engineered for compatibility with standard dyeing processes, including exhaust, continuous, cold pad batch, and pad dry pad steam. Their high solubility and anionic nature ensure consistent performance across varied methods, catering to both large-scale operations and specialized textile production.

Eco-Conscious and Safe for Textile Use

Manufactured to meet strict ecological and environmental safety standards, these dyes are free from hazardous substances and do not impart odor or toxicity under normal conditions. Their excellent washing, rubbing, and perspiration fastness further assure long-term textile quality with minimal impact on the environment.

FAQs of Bifunctional Reactive Dyes:

Q: How do bifunctional reactive dyes achieve superior color fastness?

A: The dual reactive groupsVinyl Sulfone and Monochlorotriazineform strong covalent bonds with cellulose fibers, leading to enhanced fixation and improved washing, light, and perspiration fastness, typically rated at Grade 45 per ISO standards.

Q: What processes are compatible with these dyes for textile applications?

A: These dyes are suitable for exhaust, continuous, cold pad batch, and pad dry pad steam methods. Their high solubility and ionic nature ensure broad compatibility with various dyeing auxiliaries and cellulosic substrates.

Q: When should common salt or sodium sulphate be added during dyeing?

A: Salt is generally added during the dyeing process to facilitate exhaustion of the dye onto the fiber, improving color uptake and consistency. The amount depends on the specific process and material being dyed.

Q: Where are these dyes primarily used?

A: Bifunctional Reactive Dyes are widely used in textile manufacturing across major global markets, including South Asia, the European Union, North America, the Middle East, and Africa, for dyeing and printing cellulosic fibers.

Q: What benefits do these dyes offer in discharge printing applications?

A: With good dischargeability, these dyes are well-suited for discharge printing, enabling clear, bright patterns and shades by selectively removing or deactivating color in specific fabric areas during processing.

Q: Are these dyes safe for use in eco-friendly textile production?

A: Yes, the dyes are formulated to comply with international environmental and ecological standards for textile use, are non-poisonous, and do not emit harmful odors, making them ideal for sustainable manufacturing.

Q: How should the dyes be stored for optimum shelf life?

A: Store in tightly closed HDPE bags, fiber drums, or carton boxes under recommended cool and dry conditions. Under these conditions, the shelf life reaches up to two years.

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