Trade Name: ACID BLUE · CI Number: Acid Blue 113
Acid Blue 113 is a disazo levelling acid dye that gives a bright, clean blue shade on wool, silk, and nylon. As a levelling-class dye, it migrates readily in the early stages of dyeing, which means unlevelness self-corrects as the process continues — a major advantage for shade-sensitive applications such as fine wool knitwear, hosiery, and continuous-length fabric where streaks would be visible to the end customer.
The dye has a measured light fastness of 5, making it one of the better-fastness levelling blues available for wool and nylon. This is particularly valuable for carpet, upholstery, and drapery fabrics where continued exposure to daylight must not cause visible colour change over the product's lifetime.
Acid Blue 113 is a standard component in trichromatic acid dyeing systems, where it is used alongside Acid Yellow 42 and Acid Red 114 to build the full commercial shade gamut for wool and nylon production. Its predictable exhaustion rate and compatibility with common auxiliaries make it a reliable choice for automated dispensing systems. Yobai Industries supplies this with consistent colour strength and batch testing before dispatch.
Specifications are indicative. Contact us for a batch-specific TDS before placing a bulk order.
| Parameter | Value |
|---|---|
| Product Name | Acid Blue 113 |
| Trade Name | ACID BLUE |
| CI Number | Acid Blue 113 |
| CAS Number | 3351-05-1 |
| Colour | Bright Blue |
| Appearance | Blue Powder |
| Ionic Character | Anionic |
| Solubility | Soluble in hot water. |
| Molecular Weight | ~682 g/mol |
| Dye Class | Acid Dye |
| Sub-class | Levelling Acid Dye |
| Application pH | 3–5 |
| Application Temp. | 90–100°C |
| Required Auxiliaries | Acetic acid to pH 3–5; sodium sulphate (10–20 g/L) for level exhaustion |
| Wash Fastness | 4 |
| Light Fastness | 5 |
| Packaging | 1 kg · 5 kg · 10 kg · 25 kg · 50 kg · Custom packaging available |
| Shelf Life | 5 years from manufacture (cool, dry, sealed storage) |
| Manufacturer | Yobai Industries, Sayakha, Gujarat, India |
| GSTIN | GST Registered |
Need a full TDS, COA, or MSDS? Request it here or WhatsApp us directly.
Indicative dosages at liquor ratio 1:15–1:20. Pre-dissolve dye in warm water before adding to the bath. Add acid separately and gradually to avoid uneven strike. Run lab trials before bulk production.
| Shade Depth | % owf | Acetic Acid | Na₂SO₄ (g/L) | Temp. (°C) | Time at Temp. |
|---|---|---|---|---|---|
| Pale Sky Blue | 0.1 – 0.5 | To pH 4.5–5 | 10 – 15 | 90 | 30 min |
| Medium Blue | 0.5 – 1.5 | To pH 4–4.5 | 15 – 20 | 95 | 45 min |
| Royal Blue | 1.5 – 3.0 | To pH 3.5–4.5 | 15 – 20 | 95 – 100 | 60 min |
| Deep Navy Blue | 3.0 – 5.0 | To pH 3–4 | 20 – 25 | 100 | 60 – 75 min |
For silk, limit maximum temperature to 85°C to avoid fibre damage. Use ammonium sulphate instead of acetic acid for a gentler pH control on silk.
Shade range from pale sky blue to deep navy, depending on concentration. Actual shade may vary slightly with substrate and water quality. Request a dyed swatch for critical colour matching.
Shade cards and dyed lab swatches available on request. Contact our technical team before finalising bulk colour targets.
All sizes supplied in sealed, moisture-proof packaging. Custom pack sizes available for bulk contracts. Label includes batch number, manufacture date, and strength certificate.
Store in a cool, dry location below 30°C. Keep containers tightly sealed, away from moisture, direct sunlight, and strong oxidising agents. Do not store near alkaline materials. Check that packaging is intact before use.
This dye is used by manufacturers across the following industries. Contact us with your specific application for a grade recommendation.
Yobai Industries carries the following grades in this dye family. Click any grade to view specifications, or view the full catalogue →
Don't see the grade you need? We carry 250+ dye grades. Contact us and we'll source or develop it for you.
MOQ 10 kg · Samples in 24 hours · Bulk in 7–15 days · Export worldwide · GST invoice with every order.