textile dyeing auxiliaries

Hydrogen Peroxide 50% for Textile Bleaching

CAS: 7722-84-1

Hydrogen peroxide (50% technical grade) is the primary bleaching agent for cotton, linen, and viscose fibers in the textile industry. Under alkaline conditions with a peroxide stabilizer, it selectively oxidizes and destroys natural color pigments without significant fiber damage. Generates no toxic chlorinated by-products, making it the environmentally preferred bleaching agent over sodium hypochlorite.

textile dyeing auxiliaries

Low-Foam Mercerizing Wetting Agent

A specialized low-foam wetting agent formulated for concentrated alkali mercerizing baths (NaOH 180–280 g/L). It ensures rapid and uniform penetration of caustic soda into the cotton fabric structure, allowing complete cellulose swelling for maximum luster improvement. Stable in high-alkali, high-temperature conditions typical of hot mercerizing processes.

textile dyeing auxiliaries

Migration Inhibitor for Cotton Dyeing

A carboxymethyl cellulose (CMC)-based migration inhibitor designed to prevent dye migration during drying in pad-dry-cure and cold pad-batch dyeing of cotton with reactive dyes. It forms a temporary viscous network in the padded fabric to fix dye in position until fixation is complete. Essential for producing level, blotch-free continuous dyed cotton fabric.

textile dyeing auxiliaries

Nonionic Leveling Agent for Polyester

A polyethylene oxide (PEO)-based nonionic leveling agent designed for high-temperature disperse dye dyeing of polyester and polyester blends. It acts as a dye-bath dispersant and migration promoter, preventing dye aggregation and ensuring uniform shade at 130°C. Compatible with all disperse dye classes and suitable for jet, beam, and winch dyeing machines.

textile dyeing auxiliaries

Nonionic Softener for Knitted Fabrics (Fatty Acid Amide)

A nonionic fatty acid amide-based softener formulated for knitted cotton and synthetic fabrics, providing a natural, bulky, and comfortable hand without the waxy feel of cationic softeners. Its nonionic nature ensures full compatibility with anionic, cationic, and reactive dye systems in combined finishing baths. Particularly valued for baby and skin-contact textiles requiring mild, irritant-free finishing.

textile dyeing auxiliaries

Optical Brightening Agent 351 (for Polyester)

CAS: 13001-39-3

Optical Brightening Agent 351 (benzoxazole-type) is the premier fluorescent whitening agent for polyester and polyester-blend fabrics. Applied by high-temperature exhaust (130°C) or thermosol continuous process, it diffuses into polyester fiber to deliver brilliant blue-white fluorescence with excellent sublimation and wash fastness. Essential in white and pastel polyester fabric production.

textile dyeing auxiliaries

Optical Brightening Agent VBL (for Cotton)

CAS: 4404-43-7

Optical Brightening Agent VBL (stilbene-type) is the most widely used fluorescent whitening agent for cotton, viscose, and linen fabrics. It absorbs near-UV light and re-emits blue-white fluorescence, significantly enhancing the whiteness and brightness of bleached cellulosic textiles. Compatible with standard alkaline bleaching, applied by pad or exhaust methods.

textile dyeing auxiliaries

Peregal O (Oleyl Alcohol Ethoxylate)

CAS: 9004-96-0

Peregal O (oleyl alcohol ethoxylate, EO-20) is a classic nonionic emulsifier and leveling agent widely used in textile dyeing and finishing. It acts as an emulsifier for oils and hydrophobic substances, a leveling promoter for acid and disperse dyes, and a wetting and dispersing agent in various wet processing applications. Known by its common name Peregal O-25 or O-20 in the industry.

textile dyeing auxiliaries

Quaternary Ammonium Antimicrobial Finish for Textile

CAS: 65229-15-4

A silane-based quaternary ammonium compound providing durable antimicrobial finish on cotton, polyester, and blended textiles. Unlike leaching-type antimicrobials, it covalently bonds to fiber surfaces via silanol groups, creating a non-migrating biostatic layer. Effective against Staphylococcus aureus, E. coli, and various molds, meeting ISO 20743 and AATCC 100 testing standards.

textile dyeing auxiliaries

Reactive Dye Black 5

CAS: 17095-24-8

Reactive Dye Black 5 is the world's most widely used reactive black dye for cotton and cellulosic fibers, offering deep jet-black shades with outstanding all-round fastness properties. Based on the diazo structure, it provides excellent wash fastness and is the industry standard for exhaust dyeing of denim, casual wear, and home textiles. Compatible with standard alkali-salt exhaust dyeing processes.

textile dyeing auxiliaries

Reactive Dye Blue 19 (Turquoise)

CAS: 2580-78-1

Reactive Dye Blue 19, also known as Reactive Turquoise Blue, is a copper phthalocyanine-based reactive dye yielding unique bright turquoise shades on cotton and cellulosic fibers. It requires higher fixation temperatures and longer reaction times than conventional reactive dyes due to its large molecular structure. Widely used in sportswear, home textiles, and fashion fabrics.

textile dyeing auxiliaries

Reactive Dye Red 195

CAS: 72799-94-1

Reactive Dye Red 195 is a high-fixation bifunctional reactive dye specifically designed for dyeing cotton and cellulosic fibers. It forms a covalent bond with the fiber under alkaline conditions, delivering brilliant red shades with outstanding wash fastness. Widely adopted in continuous and exhaust dyeing processes for woven and knitted cotton fabrics.

textile dyeing auxiliaries

Reactive Dye Yellow 145

CAS: 108014-15-9

Reactive Dye Yellow 145 is a high-performance bifunctional reactive dye providing bright yellow shades on cotton and regenerated cellulosic fibers. Its VS/MCT dual reactive group structure offers superior fixation rates and excellent build-up properties for medium-to-deep shade dyeing. Ideal for trichromatic exhaust and continuous dyeing systems.

textile dyeing auxiliaries

Scouring Agent for Cotton (Alkyl Sulfonate Based)

CAS: 61791-12-6

An alkyl sulfonate-based scouring agent for the alkaline pre-treatment of cotton, linen, and viscose fabrics. It efficiently removes natural waxes, pectin, oils, and sizing agents from greige fabric, ensuring uniform wettability for subsequent dyeing and finishing processes. Low-foam formulation is suitable for continuous scouring in J-boxes and jet scouring machines.

textile dyeing auxiliaries

Sequestering Agent EDTA Tetrasodium Salt

CAS: 64-02-8

EDTA Tetrasodium Salt is a powerful chelating agent that sequesters calcium, magnesium, iron, and copper ions in textile dyeing and finishing process water. It prevents metal ion interference that causes dye precipitation, color change, and fabric damage in bleaching and dyeing baths. Essential in hard water regions and in peroxide bleaching to stabilize hydrogen peroxide.

textile dyeing auxiliaries

Silver Nitrate Antimicrobial Finish for Textile

CAS: 7761-88-8

Silver nitrate solution for imparting antimicrobial properties to textiles via silver ion (Ag+) deposition onto fiber surfaces. Silver ions are highly effective against a broad spectrum of bacteria, fungi, and mold at very low concentrations. Used in functional finishing of medical textiles, sportswear, innerwear, and wound dressings requiring durable antimicrobial performance.

textile dyeing auxiliaries

Soaping Agent for Reactive Dye (After-Treatment)

A high-performance nonionic soaping agent specially formulated to remove unfixed reactive dye and hydrolyzed dye from cotton fabric after dyeing. It prevents back-staining of the dyed fabric during the soaping wash and achieves high wet fastness standards in a single soaping step at 95°C. Suitable for all reactive dye classes including vinyl sulfone and MCT types.

textile dyeing auxiliaries

Sodium Alginate Printing Thickener

CAS: 9005-38-3

Sodium alginate is the preferred natural thickener for reactive dye printing on cotton and cellulosic fabrics. It forms a smooth, viscous print paste that releases dye efficiently during steaming fixation, producing sharp print edges with minimal penetration. Biodegradable and easily washed out after steaming, leaving no stiff residue on the fabric.

textile dyeing auxiliaries

Sodium Carbonate (Fixation Alkali for Reactive Dye)

CAS: 497-19-8

Dense soda ash (sodium carbonate, Na2CO3) is the standard fixation alkali used in reactive dye exhaust and pad dyeing of cotton. It raises the dyebath pH to 10.5–11.5, activating the hydroxyl groups on cellulose fiber for covalent bonding with reactive dye groups. Widely used in both exhaustion (adding at 50°C+) and continuous pad-steam (pre-padded) processes.

textile dyeing auxiliaries

Sodium Hexametaphosphate (Water Softener for Textile)

CAS: 10124-56-8

Sodium Hexametaphosphate (SHMP) is a polyphosphate water softener and sequestering agent used in textile dyeing and finishing to prevent calcium and magnesium scale formation. It complexes hardness ions in process water to maintain dye solubility and prevent precipitation on fabric and equipment. Cost-effective alternative to EDTA in medium-hardness water conditions.

textile dyeing auxiliaries

Sodium Silicate (Peroxide Bleaching Stabilizer)

CAS: 1344-09-8

Sodium silicate (water glass, SiO2:Na2O ratio 3.2–3.4) is the classic stabilizer for hydrogen peroxide bleaching of cotton and cellulosic fibers. It buffers the alkaline bleaching bath and adsorbs metal ions that would otherwise catalytically decompose H2O2, ensuring controlled bleaching action and preventing fiber damage. Available in liquid form for easy dosing in bleaching ranges.

textile dyeing auxiliaries

Sulfur Dye Black 1

CAS: 1326-82-5

Sulfur Dye Black 1 is the world's most consumed textile colorant, providing deep jet-black shades on cotton and cellulosic fibers at very low cost. Applied by reduction with sodium sulfide, then re-oxidized in air or with oxidizing agents to lock color inside the fiber. The workhorse dye for denim warp yarn, cotton knit, and casualwear black dyeing worldwide.

textile dyeing auxiliaries

Synthetic Acrylic Printing Thickener

An anionic acrylic-based synthetic thickener for textile printing that provides high viscosity at low concentration, excellent pseudoplasticity, and sharp print definition on polyester, nylon, and cotton-polyester blend fabrics. It offers superior print definition compared to natural thickeners and is particularly suited for discharge, pigment, and disperse dye printing applications.

textile dyeing auxiliaries

Textile Penetrant JFC (Fatty Alcohol Polyoxyethylene Ether)

CAS: 34398-01-1

Penetrant JFC is a fatty alcohol polyoxyethylene ether nonionic surfactant providing rapid and uniform wetting of cotton, polyester, and wool textiles before and during dyeing and finishing. It significantly reduces the surface tension of process liquors to ensure complete fiber penetration. Widely used in scouring, bleaching, and dyeing pre-treatment processes across the textile wet processing industry.