Dyeing Auxiliaries

Our dyeing auxiliaries range has been refined through four decades of working closely with textile mills, with each product designed to address a specific process challenge.

EVENOL®

The EVENOL® series is developed for shade consistency and dye bath stability. It addresses the two most common sources of dyeing failure: uneven dye distribution in the liquor, and uncontrolled exhaustion rates that lock in shade variation before fixation even begins. 

Levelling agents: reactive & direct dyeing

Levelling agents for cellulosic fibres regulate the rate at which reactive and direct dyes exhaust onto the substrate, allowing even distribution across the full batch before fixation is triggered.

1. EVENOL DLR Plus – anionic levelling agent for reactive dyeing on cellulosic fibres and blends, effective in exhaust, continuous, and reactive printing applications.
2. EVENOL LDA – versatile additive that combines levelling, dye bath conditioning, washing-off aid, and oligomer binding functions in a single product, suited for reactive dyeing, printing, and polyester machine cleaning.
3. EVENOL DST – specifically formulated for dye solubilisation in critical shades such as turquoise, where aggregation tendency is high.
4. EVENOL VLA – provides levelling for vat dye application on cellulosic substrates and their blends, covering dyeing, oxidation phase, and correction of faulty dyeing.

Levelling & dispersing agents: polyester & blends

Disperse dye systems on polyester require stable particle suspension through the full high-temperature ramp and even rate of exhaustion onto the fibre. 

1. EVENOL MND- A combined levelling and dispersing agent for disperse dyes on polyester and P/C blends, effective in both exhaust and continuous processes. 
2. EVENOL DADLP- A high-performance levelling agent for disperse dyeing of polyester and blends, suited to exhaust and continuous pad-thermosol methods. 
3. EVENOL CFP Plus – A highly concentrated levelling and stripping agent for polyester, used both to level during dyeing and to strip incorrectly dyed goods, effective in exhaust and pad-thermosol. 
4. EVENOL CFP- A standard-strength counterpart with stripping capability. 
5. EVENOL DNS Powder – A universal high-temperature stable dispersing agent effective across polyester, vat, and indigo dyeing in both exhaust and continuous modes. 
6. EVENOL DNS Liquid – Offers the same high-temperature stability in liquid form, additionally suited for machine cleaning. 
7. EVENOL AMI – A migration inhibitor for continuous padding of cellulosic, polyester, and blended fabrics, preventing dye migration during drying in pad-thermosol and pad-steam processes. 
8. EVENOL LNW – A levelling agent specifically for acid and metal complex dyeing on nylon, wool, silk, and their blends.

Alkali donors

Alkali donors release alkali gradually during reactive dyeing, replacing conventional soda ash addition with a controlled, progressive pH shift that improves fixation uniformity and reduces the risk of unlevel fixation from a sudden pH jump. 

1. EVENOL SAR Powder – An alkali donor for reactive dyeing with improved dyeing performance, replacing soda ash in exhaust processes. 
2. EVENOL SAR Liquid is its liquid counterpart, particularly suited to auto-dosing systems. 
3. EVENOL AR is an alkali donor that acts as a direct replacement for soda ash, with COD and BOD confirmed below detection limit in independent effluent analysis, delivering measurably lower environmental load without compromising colour fixation.

AMPINOL®

The AMPINOL® series improves washing-off efficiency and unfixed dye removal after dyeing. Unfixed surface dye is the primary cause of poor wash fastness and crocking in finished goods. 

Washing-off agents 

Washing-off agents for reactive-dyed cellulosic fabrics remove hydrolysed unfixed dye from the fibre surface without re-deposition.

1. AMPINOL ESS Ultra – An excellent washing-off agent with superb anti-tinting properties, preventing re-deposition of removed dye onto the substrate during rinsing, suited to cellulosic fibres and their blends in both exhaust and continuous processing. 
2. AMPINOL PNS Liquid – A high-performance washing-off agent specifically for critical shades in reactive dyeing where complete dye removal is essential for fastness. 
3. AMPINOL DET – A versatile washing-off agent that also functions as a dye bath conditioner, suitable for cellulosic fibres and blends in exhaust and continuous systems. 
4. AMPINOL PCS – A washing-off agent for reactive dyeing on cellulosic fibres. 
5. AMPINOL AWA – A washing-off agent at acidic pH that enables combined neutralisation and soaping in a single bath, reducing process steps. 
6. AMPINOL SW – A cost-effective washing-off agent for reactive dyeing on cellulosic substrates.
7. AMPINOL DBC – A versatile additive for reactive dyeing and printing that combines dye bath conditioning, washing-off aid for improved fastness, and oligomer binding functions for polyester.

One-bath washing-off 

Polyester-cotton blended fabrics dyed with both disperse and reactive dyes require washing-off conditions that address two chemically different dye systems simultaneously. 

1. AMPINOL RDP – A novel washing-off agent for single-bath washing-off of polyester/cotton and polyester/viscose blends, reducing total wash passes and water and energy consumption. 
2. AMPINOL RDP-CW – extends its capability with additional performance for both reactive and disperse dyes in one-bath soaping of P/C blends across exhaust and continuous modes.

Reduction clearing agents

After disperse dyeing of polyester, surface dye not fully penetrated into the fibre must be removed by reductive clearing. 

1. AMPINOL ECO Powder – An after-treatment agent with reductive effect for post-clearing of disperse dyes in polyester and its blends, replacing the conventional caustic soda and sodium hydrosulphite combination with significantly lower effluent burden. 
2. AMPINOL ECO Liquid – A reduction clearing agent for disperse dyeing available in liquid form, offering equivalent performance with dosing flexibility.

Versatile detergents & soaping agents

AMPINOL D Paste – A versatile detergent with powerful wetting and dispersing properties, suited to scouring, kier-boiling, and post-dyeing soaping treatment across all fabric types, cellulosic, synthetic, and their blends. It functions effectively in both exhaust and continuous modes and is a general-purpose soaping agent for any fibre type requiring thorough detergent action after processing.

DYFAST®

The DYFAST® series provides after-treatment fixation for reactive and direct dyes on cotton and cellulosic substrates. Dye fixative agents form an additional bond between the dye molecule and the fibre after the dyeing and washing-off stages, locking in colour and improving wash, rub, and perspiration fastness, particularly important for medium and dark shades, and for dyes with inherently lower fixation efficiency. 

Advanced & new-technology fixative agents

1. DYFAST DTF Plus uses advanced technology to deliver dye fixation for reactive and direct dyeing on cotton and blends, offering high fastness performance in both exhaust and padding applications. 
2. DYSFAST PMD Plus is a new-technology dye fixative agent with excellent fastness and minimal tonal variation, important where the fixative treatment must not shift the perceived shade. 
3. DYFAST FFC Ultra is a highly concentrated dye fixative agent for reactive and direct dyeing, suited to mills requiring efficient dosing at low add-on levels. 
4. DYFAST FFC Plus is its high-performance counterpart. 
5. DYFAST DFL Conc. is a concentrated after-treatment fixative agent for reactive and direct dyeing on cellulosic and blended substrates, improving overall fastness properties with no negative influence on the natural aesthetics of the substrate.

Standard & cost-effective fixative agents

1. DYFAST DTF is a new-generation dye fixative agent for reactive and direct dyeing on cotton and blends. 
2. DYFAST PMD improves fastness properties with very low tonal variation across cellulosic substrates. 
3. DYFAST EDF is a cost-effective dye fixative agent balancing performance with economics for medium-shade applications. 
4. DYFAST DFL is a conventional dye fixative with very good fastness properties, suited to standard reactive and direct dye programmes on cotton and blended fabrics.

KOLAPSOL®

The KOLAPSOL® series controls foam generation during dyeing, particularly in high-turbulence machines such as jets, package dyeing equipment, and continuous ranges where foam build-up disrupts liquor circulation, causes unlevel dye distribution, and leads to machine downtime.

Foam inhibition agents

1. KOLAPSOL ST is a versatile foam inhibition agent that is both high-temperature and alkali stable, specifically recommended for high-turbulence machines where foam generation is most severe, including jet and overflow dyeing machines operating at temperatures up to 130°C. It is universally applicable across fabric types and dye classes. 
2. KOLAPSOL AFD is a silicone-based foam inhibition agent recommended specifically for dyeing of polyester in jet or package dyeing machines, where the combination of high temperature and high liquor turbulence makes conventional antifoams ineffective. 
3. KOLAPSOL DA is a silicone-free foam inhibition agent suitable for both discontinuous (exhaust) and continuous applications across polyester, cotton, and blended fabrics, an important option for processes where silicone contamination would affect subsequent finishing