Textile Dyeing Auxiliaries

textile dyeing auxiliaries

Acid Dye Blue 25

CAS: 6408-78-2

Acid Dye Blue 25 is an anthraquinone-type leveling acid dye yielding brilliant bright blue shades on wool, silk, and nylon. Its anthraquinone structure provides outstanding light fastness, making it suitable for high-durability wool suiting, upholstery, and nylon sportswear. Dyes under acidic pH 4–5.5 conditions with excellent bath exhaustion.

textile dyeing auxiliaries

Acid Dye Red 18

CAS: 2611-82-7

Acid Dye Red 18 is a leveling acid dye providing bright scarlet-red shades on wool, silk, and nylon fibers. It dyes under weakly acidic conditions (pH 4–5) with excellent leveling properties and uniform shade development. Widely used in wool knitwear, silk scarves, and nylon carpet dyeing.

textile dyeing auxiliaries

Amino Silicone Fabric Softener

CAS: 106842-44-8

Amino-functional polydimethylsiloxane (amino silicone) is the premium fabric softener for cotton, polyester, and blended textiles, delivering super-soft handle with excellent resilience and drape. The amino groups anchor the silicone onto the fiber surface via ionic interaction, providing durable softness through multiple wash cycles. Widely used in finishing of apparel, home textiles, and sportswear.

textile dyeing auxiliaries

Ammonium Sulfate (pH Buffer for Reactive Dyeing)

CAS: 7783-20-2

Technical-grade ammonium sulfate is used in reactive dye exhaust dyeing as a mild pH buffer and slow-release alkali source, providing controlled dye exhaustion and fixation. When heated, it hydrolyzes to release ammonia and sulfuric acid, gradually lowering bath pH to promote reactive dye fixation in a more controlled manner than direct alkali addition. Also used as a diluent and anti-migration agent in disperse dye printing.

textile dyeing auxiliaries

Anionic Leveling Agent for Cotton

CAS: 68891-38-3

An anionic surfactant-based leveling agent specially formulated for reactive and direct dye exhaust dyeing of cotton and cellulosic fibers. It retards dye uptake in the initial phase of dyeing to ensure uniform dye migration and shade levelness. Compatible with all anionic reactive dyes and standard salt-alkali dyeing processes.

textile dyeing auxiliaries

Anti-Reducing Agent for Printing (Sodium m-Nitrobenzenesulfonate)

Sodium m-nitrobenzenesulfonate (Ludigol/Resist Salt L) is an oxidizing anti-reducing agent added to reactive and acid dye printing pastes to prevent premature dye reduction during high-temperature steaming fixation. It oxidizes any reducing agents present in the steamer atmosphere, protecting dye color integrity and yield. Essential in cotton printing production for consistent bright shades.

textile dyeing auxiliaries

Antistatic Agent for Textile (GMS Based)

CAS: 4292-10-8

Glycerol monostearate (GMS)-based antistatic agent for preventing static buildup on polyester, nylon, acrylic, and other synthetic textile fibers. It forms a hydrophilic surface layer that dissipates static charges by increasing surface conductivity through moisture absorption. Applied by padding or exhaust methods as part of the finishing process for synthetic apparel, upholstery, and carpets.

textile dyeing auxiliaries

Bioscouring Enzyme (Pectinase) for Cotton

Pectinase-based bioscouring enzyme for the eco-friendly pre-treatment of cotton fabric, replacing conventional NaOH alkaline scouring. It degrades pectic substances in the primary cell wall of cotton fibers, releasing natural waxes and improving fabric absorbency without fiber degradation. Significantly reduces water, energy, and chemical consumption in cotton pre-treatment.

textile dyeing auxiliaries

C6 Fluorocarbon DWR Finish (Water and Oil Repellent)

A C6 short-chain fluorocarbon polymer dispersion providing durable water repellency (DWR) and oil repellency on cotton, polyester, nylon, and blended fabrics. Based on C6 perfluoroalkyl chemistry (free of C8 PFOA/PFOS), it forms a low-surface-energy coating on fiber surfaces, causing water and oil to bead up and roll off. Meets bluesign, GOTS, and OEKO-TEX fluorine restriction requirements for sustainable DWR finishing.

textile dyeing auxiliaries

Cationic Dye Fixative for Reactive Dye

CAS: 26590-05-6

A polyamine-based cationic fixative designed to improve wet fastness and washing fastness of reactive-dyed cotton and viscose fabrics. It forms an ionic complex with unfixed reactive dye anions on the fiber surface, reducing dye bleeding without significantly altering the original shade. Commonly used as an after-treatment in exhaust and continuous dyeing processes.

textile dyeing auxiliaries

Cationic Fabric Softener (Distearyl Dimethyl Ammonium Chloride)

CAS: 107-64-2

Distearyl Dimethyl Ammonium Chloride (DSDA/DSDMAC) is a classical cationic fabric softener and conditioner for cotton and blended textiles. It deposits on negatively charged fiber surfaces via exhaustion or pad application, reducing inter-fiber friction to deliver a pleasant soft and smooth handle. Widely used in laundry conditioner formulation and textile mill finishing baths.

textile dyeing auxiliaries

Caustic Soda 50% for Mercerizing

CAS: 1310-73-2

Caustic Soda (NaOH) 50% liquid solution for textile mercerizing applications. Mercerizing cotton fabric with concentrated NaOH (200–280 g/L) under tension permanently swells cellulose fibers, increasing luster, dye uptake, dimensional stability, and tensile strength. The 50% liquid grade is convenient for continuous mercerizing ranges with automatic dilution systems.

textile dyeing auxiliaries

Crosslinking Resin Fixative DMDHEU

CAS: 1854-26-8

DMDHEU (Dimethylol Dihydroxyethylene Urea) is a durable press and crosslinking resin that simultaneously imparts crease resistance and improves dye fastness on cotton and blended fabrics. When cured with a catalyst, it crosslinks cellulose chains to lock dye molecules, enhancing wash fastness and shape retention. The industry standard resin for easy-care cotton shirting and home textile finishing.

textile dyeing auxiliaries

Desizing Enzyme (Alpha-Amylase)

CAS: 9000-90-2

Alpha-amylase is a thermostable enzymatic desizing agent that hydrolyzes starch-based sizing agents on cotton and cotton-blend woven fabrics with high efficiency and minimal fiber damage. It works under mild conditions (50–70°C, pH 6–7), eliminating the need for harsh oxidative or alkaline desizing. Widely used in modern continuous desizing ranges for cotton shirting and denim.

textile dyeing auxiliaries

Discharge Agent Rongalit C (Sodium Formaldehyde Sulfoxylate)

CAS: 149-44-0

Sodium formaldehyde sulfoxylate (Rongalit C, SFS) is the principal discharge printing agent used to destroy azo dye chromophores in dyed cotton fabric during high-temperature steaming, creating white or illuminated color discharge effects. It is mixed into thickened print pastes with or without discharge-resist dyes to produce classic discharge printed textiles. Widely used in woven cotton, denim overprint, and home textile discharge effects.

textile dyeing auxiliaries

Disperse Dye Blue 56

CAS: 12217-79-7

Disperse Dye Blue 56 is a high-sublimation-fastness azo-type disperse dye producing navy blue to royal blue shades on polyester and synthetic fiber blends. It exhibits excellent compatibility in trichromatic combinations and offers good thermosol properties. Commonly used in sportswear, outdoor fabrics, and automotive textiles requiring deep blue coloration.

textile dyeing auxiliaries

Disperse Dye Red 60

CAS: 17418-58-9

Disperse Dye Red 60 is an anthraquinone-type disperse dye delivering brilliant red-violet shades on polyester, nylon, and acetate fibers. It offers excellent sublimation fastness, making it ideal for heat-transfer printing applications. Widely used in automotive upholstery, sportswear, and polyester woven fabric dyeing.

textile dyeing auxiliaries

Disperse Dye Yellow 54

CAS: 12223-85-7

Disperse Dye Yellow 54 is a styryl-type disperse dye yielding brilliant greenish-yellow shades with very high light fastness on polyester fibers. It is particularly valued for its outstanding photostability and is preferred in outdoor, automotive, and military textile applications. Suitable for both exhaust and thermosol dyeing processes.

textile dyeing auxiliaries

Dispersing Agent for Disperse Dye (NNO)

CAS: 36290-04-7

Dispersing Agent NNO (sodium naphthalene formaldehyde sulfonate condensate) is the most widely used dispersant for disperse dye milling and polyester dyeing. It maintains fine disperse dye particle size distribution in the dye bath, preventing dye agglomeration at high temperatures. Suitable for HT dyeing, thermosol processes, and disperse dye formulation manufacturing.

textile dyeing auxiliaries

Dye Carrier for Polyester (Dicyclohexyl Phthalate)

CAS: 84-61-7

Dicyclohexyl phthalate is an aromatic dye carrier that swells polyester fiber at atmospheric boil (100°C), allowing disperse dye penetration without high-pressure equipment. It temporarily plasticizes the PET polymer chain, increasing free volume for dye diffusion. Used in atmospheric pressure dyeing of polyester and polyester blends where HT equipment is unavailable.

textile dyeing auxiliaries

Easy-Care Resin Finish DMDHEU (Crease Resistance)

CAS: 1854-26-8

DMDHEU (Dimethylol Dihydroxyethylene Urea) easy-care resin finish is the industry-standard crosslinking agent for imparting durable press and wrinkle resistance to cotton and cotton-blend fabrics. Applied by pad-dry-cure with a catalyst, it forms crosslinks between cellulose chains, permanently setting the fabric in a smooth, wrinkle-resistant state. Used worldwide in cotton shirting, bed sheets, and home textile finishing.

textile dyeing auxiliaries

Emulsifying Scouring Agent (Nonionic Blend)

A nonionic blend emulsifying scouring agent formulated for the removal of mineral oils, spinning lubricants, knitting oils, and greasy soils from synthetic and blended fabrics before dyeing. It emulsifies and disperses oily contaminants at low temperatures (40–60°C) without the need for strong alkali, protecting delicate fibers. Effective on polyester, nylon, wool, and wool-blend fabrics.

textile dyeing auxiliaries

Flame Retardant TDCPP for Polyester (Tris Chloroalkyl Phosphate)

CAS: 13674-87-8

Tris(1,3-dichloro-2-propyl) phosphate (TDCPP) is a halogen-phosphorus synergistic flame retardant for polyester and polyester-blend fabrics. Applied via padding or back-coating, it provides effective flame retardancy by releasing HCl and phosphorus-based radicals in the gas phase during combustion. Meets EN 13501-1 (Class B-s2), MVSS 302, and various upholstery FR standards.

textile dyeing auxiliaries

Flame Retardant for Cotton (THPC-based Proban Process)

Tetrakis(hydroxymethyl)phosphonium (THPC)-based flame retardant system for the Proban durable flame retardant finish of cotton and cotton-blend fabrics. After pad application and curing with ammonia, THPC polymerizes within the cotton fiber structure to form an insoluble phosphorus-nitrogen network, providing durable flame retardancy that withstands 100+ wash cycles. Meets EN 11612, NFPA 2112, and ATPV arc flash standards.

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.

textile dyeing auxiliaries

Urea (Dye Solubilizer for Printing)

CAS: 57-13-6

Technical-grade urea is an essential auxiliary in reactive dye printing paste formulations. It acts as a dye solubilizer and hygroscopic agent that maintains moisture in the print area during steaming, promoting dye dissolution and migration into the fiber for high fixation efficiency. Typically used at 50–200 g/kg in print paste alongside sodium alginate and alkali.

textile dyeing auxiliaries

Vat Dye Blue 4 (Indanthrone)

CAS: 81-77-6

Vat Dye Blue 4, chemically known as Indanthrone, is the benchmark vat dye for cotton delivering deep navy-blue shades with the highest known light and wash fastness ratings. Applied via sodium dithionite/caustic soda reduction, it forms an insoluble colored pigment within the fiber on re-oxidation. Preferred in workwear, military uniform, and high-end denim dyeing.