Overview
Ammonium Sulphate ((NH₄)₂SO₄) is an important inorganic salt used as an auxiliary in textile dyeing, particularly in cotton and cellulosic fiber dyeing with reactive dyes.
It acts primarily as a salting-out agent, helping dyes to bind effectively to fibers, enhancing color intensity and uniformity.
Role in Textile Dyeing
In textile dyeing, especially with reactive and direct dyes, ammonium sulphate is used to modify the ionic environment of the dye bath. Its key roles include:
Promotes Dye Fixation:
Reduces solubility of reactive dyes in water (salting-out effect).
Encourages dyes to bind with fiber molecules, improving uptake.
Enhances Color Depth and Brightness:
Provides intense, vibrant shades by maximizing dye-fiber interaction.
Reduces dye wastage and enhances yield.
Improves Dye Uniformity:
Prevents streaking or patchy dyeing.
Ensures consistent shades across fabric batches.
pH Neutrality:
Unlike acids or alkalis, ammonium sulphate does not significantly alter dye bath pH.
Compatible with most fiber types and reactive dyes.
Typical Usage in Textile Dyeing
Component Concentration / Ratio
Cotton / Cellulosic Fiber As required
Reactive / Direct Dye 2–5% owf (on weight of fiber)
Ammonium Sulphate 10–30 g/L (depending on fiber and dye type)
Temperature 50–60°C (initial), 60–70°C (dyeing)
Dyeing Time 30–60 minutes
The ammonium sulphate is dissolved in water before adding dyes to the bath to ensure even distribution.
Advantages in Textile Dyeing
Improves dye fixation and color yield
Reduces uneven dyeing and patchiness
Compatible with reactive, direct, and vat dyes
Cost-effective and easy to handle
Safe for workers and textile machinery
Applications
Cotton dyeing – reactive dyes
Cellulosic fibers – direct dyes
Blended fabrics – ensuring uniform color on cotton-polyester blends
Printing paste formulations – for reactive dye prints
Forms Available
Granular Ammonium Sulphate – Easy to dissolve, standard industrial grade
Powdered Form – For precise dosing in lab-scale or high-precision applications
Packaging Options
25 kg / 50 kg HDPE Bags with inner liner
Jumbo bags for bulk industrial use
Customized packaging upon request
SEO Keywords
Ammonium sulphate textile dyeing | Ammonium sulphate reactive dye | Textile auxiliaries India | Salting-out agent in dyeing | Ammonium sulphate supplier Vadodara | Laxmi Enterprise textile chemicals | Industrial ammonium sulphate uses
Fertilizer Industry
Ammonium Sulphate Trihydrate is primarily used as a nitrogen and sulfur fertilizer.
Functions:
Supplies 21% nitrogen and 24% sulfur to crops.
Supports protein synthesis, leaf development, and chlorophyll formation.
Improves soil fertility and crop yield, especially in sulfur-deficient soils.
Applications: Wheat, rice, maize, sugarcane, and horticultural crops.
2. Textile and Dyeing Industry
Used as an auxiliary in dyeing processes for cotton, wool, and synthetic fibers.
Functions:
Acts as a salting-out agent to promote reactive and direct dye fixation.
Ensures uniform color distribution and deeper shades.
Compatible with acid, direct, and reactive dyes.
Applications: Reactive dyeing of cotton, wool acid dyeing, printing pastes.
3. Leather Tanning and Processing
Maintains pH stability during pickling and tanning.
Improves penetration of tanning agents into hides.
Enhances softness, dye uptake, and finishing quality.
Applications: Chrome tanning, leather finishing, and dyeing operations.
4. Pharmaceutical & Laboratory Use
Serves as a reagent in biochemical research and laboratory analyses.
Provides ammonium and sulfate ions in buffer and growth media.
Used in protein precipitation and enzyme stabilization.
Applications: Biochemical labs, pharmaceutical formulations, buffer solutions.
5. Industrial & Chemical Applications
Neutralization agent for acidic waste streams.
Acts as a source of ammonia and sulfate ions in chemical synthesis.
Used in catalysis, electroplating baths, and process water treatment.
Applications: Wastewater treatment, metal finishing, chemical intermediates.
6. Agriculture & Horticulture Beyond Fertilization
Used as a foliar spray for rapid nitrogen absorption.
Enhances chlorophyll content and flowering in plants.
Compatible with other fertilizers and agrochemicals.
Forms and Grades
Grade Description Application Sector
Technical Grade Industrial processes Textile, leather, chemical industry
Fertilizer Grade Crystalline granules Agriculture, horticulture
Laboratory / Reagent Grade High purity Pharmaceuticals, laboratories
Packaging Options
25 kg / 50 kg HDPE Bags with inner liner
Jumbo bags for bulk industrial supply
Custom packaging on request
Key Industrial Sectors Served
.Fertilizers & Agriculture
.Textile & Dyeing
.Leather & Tanning
.Pharmaceuticals & Laboratories
.Chemical & Process Industry
.Wastewater Treatment
:SEO :
Ammonium sulphate trihydrate industrial applications | Fertilizer grade ammonium sulphate | Textile auxiliaries ammonium sulphate | Leather processing chemicals | Industrial ammonium sulphate supplier Vadodara | Laxmi Enterprise ammonium sulphate | NH₄SO₄·3H₂O applications
If you want, I can prepare a “Comparison of Ammonium Sulphate Anhydrous vs Trihydrate in Industrial Applications” that highlights their differences, solubility, and sector-specific usage, which is very useful for catalogs or technical guides.
Do you want me to create that next?
[[AMMONIUM SULPHATE IN TEXTILE DYEING PROCESSES, LAXMI ENTERPRISE, VADODRA...]]
