Product
Reactive Dyes
Reactive Dyes form a covalent bond with cotton for excellent wash fastness, supplied in ME, HE, H (hot) and cold brand ranges for exhaust, continuous and printing processes.
Reactive dyes carry a reactive group that chemically bonds to the hydroxyl groups of cellulose under alkaline conditions. Once fixed, the dye is part of the fibre, giving bright shades with very high wash fastness — the reason reactive dyes are the leading dye class for cotton garments.
Ranges differ by reactive group and the temperature at which they fix. Cold brand dyes react at 30–40 °C. ME (medium exhaust) bifunctional dyes work around 60 °C with high fixation. HE (high exhaust) dyes are applied around 80 °C with excellent reproducibility in deep shades. H (hot brand) dyes are mainly used in printing. Unfixed, hydrolysed dye must be washed off thoroughly.
- Grades / forms
- ME, HE, H, cold brand ranges
- Industries
- Industrial & Cosmetic Dyes
Enquire
Get a price for Reactive Dyes
Send quantity, grade and destination port. Pricing, lead time and documentation come back within one business day.
Request a quotation- Certificate of Analysis with every batch
- MSDS in destination format
- Toll manufacturing to your specification
- Private label packing available
Typical applications
- Exhaust dyeing of cotton knits and wovens
- Cold pad-batch dyeing
- Continuous pad-steam dyeing
- Direct printing on cotton and viscose
- Viscose, linen and modal fibres
Packing options
- 25 kg fibre drums with PE liner
- 25 kg cartons
- Sample packs for lab dips
Storage & handling
Keep sealed in a cool, dry place. Reactive dyes slowly hydrolyse if exposed to moisture.
Documentation
Certificate of Analysis, MSDS, Certificate of Origin, dangerous goods declaration where applicable, and third-party pre-shipment inspection on request.
Typical specification
- Form
- Powder or dust-free granules
- Strength
- 100% ± 3% against the approved standard
- Shade
- Within agreed tolerance (ΔE CMC) of the approved standard
- Moisture
- ≤ 5% (powder grades)
Typical values for reference. The exact specification is agreed before the order and confirmed on the Certificate of Analysis for each batch.
Reactive Dyes — frequently asked
ME (medium exhaust) dyes suit general exhaust dyeing of cotton around 60 °C with high fixation. HE (high exhaust) dyes are preferred for deep shades and reproducibility around 80 °C. H (hot brand) dyes are mainly used for printing. Cold brand dyes fix at 30–40 °C and suit small batches and cold pad-batch.
Some reactive dye reacts with water instead of the fibre. This hydrolysed dye is not bonded, so if it is not washed out thoroughly it bleeds in laundering and reduces wash and wet-rub fastness.
Yes. A lab dip is produced against your swatch or digital standard for approval, and every production batch is released against the approved standard for strength and shade.
Yes. Chemtrade manufactures and exports Reactive Dyes from Surat, Gujarat, India to more than 55 countries, for customers in Industrial & Cosmetic Dyes. Send your grade, quantity and destination port for a quotation within one business day.
Every shipment of Reactive Dyes from Chemtrade includes a batch-specific Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS). Certificate of Origin, third-party pre-shipment inspection and destination-specific regulatory documentation are arranged on request.
Get in touch
Send us your spec,
we'll run the batch.
Send your formulation or product name, target volume and destination port. You get pricing, lead time and documentation back within one business day — under NDA if you prefer.
Mon – Sat, 9:00 – 18:30 IST · Surat, India & Buenos Aires, Argentina