Product
Acid Dyes
Acid Dyes are anionic dyes for wool, silk, nylon and leather, supplied in levelling, milling and metal-complex ranges for different fastness needs.
Acid dyes carry sulphonic acid groups that bond ionically to the amino groups in protein and polyamide fibres when dyed in an acidic bath. That makes them the main dye class for wool, silk and nylon, as well as leather, paper, inks and anodised aluminium.
The range divides by how strongly the dye holds on. Levelling acid dyes migrate freely and give very even shades but moderate wash fastness. Milling acid dyes are larger molecules with better wet fastness for wool that will be washed. Metal-complex dyes (1:1 and 1:2) give the highest light and wet fastness, used for nylon sportswear, carpets, automotive textiles and leather.
- Grades / forms
- Levelling, milling, metal complex
- Industries
- Industrial & Cosmetic Dyes
Enquire
Get a price for Acid 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
- Wool and woollen yarn dyeing
- Silk dyeing
- Nylon hosiery, swimwear, sportswear and carpets
- Leather dyeing
- Paper, inks and wood stains
- Anodised aluminium colouring
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. Most dye powders are hygroscopic; caked dye dissolves slowly and unevenly. Shelf life is typically two years or more when sealed.
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.
Acid Dyes — frequently asked
Levelling acid dyes give the most even shades and suit pale and medium colours where wash fastness is not critical. Milling acid dyes offer better wash fastness for wool. Metal-complex acid dyes give the best light and wet fastness and are the choice for nylon sportswear, carpets, automotive textiles and leather.
Yes. Send a physical swatch or colour standard and a lab dip is produced for approval before production. Every subsequent batch is released against that approved standard.
Levelling acid dyes are applied in a strongly acidic bath of about pH 2–4. Milling and metal-complex dyes are applied in weakly acidic conditions of about pH 4–6, typically buffered with acetic acid and sodium acetate.
Yes. Chemtrade manufactures and exports Acid 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 Acid 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