What is Acid Brown 83 used for?

Acid Brown 83 is used in leather dyeing, wool and nylon textile dyeing, and shade blending for complex greenish-brown tones.

What dyeing conditions are required?

pH 3–5 using formic or acetic acid at 85–100°C.

10 kg. Samples of 1–5 kg available within 24 hours.

Can I use Acid Brown 83 with other acid dyes?

Yes. It has good compatibility with other acid dyes and is often used in three-colour recipes for complex brown shade development.

Acid Brown 83 Manufacturer India

Overview

Acid Brown 83 — Product Overview

Acid Brown 83 is a greenish-brown acid dye that sits at the crossroads of olive and warm brown — a shade character that makes it a go-to in recipes where a standard brown dye gives too red or too yellow a result. It belongs to the monoazo class of acid dyes and is applied under acidic conditions to wool, nylon, and leather. The green-brown undertone is a function of its chromophore chemistry, not something that can be easily replicated by blending standard reds and yellows, which is why trichromatic recipe builders in wool dyeing treat it as a fixed component rather than an improvised blend. At pH 3–5 with acetic or formic acid, it exhausts well onto both wool and nylon, and the levelness is reliable enough for commercial production without special retarding agents in most cases.

In leather dyeing, Acid Brown 83 is a standard component for garment leather, upholstery splits, and shoe upper leather where the buyer specifies an earthy olive-brown that reads natural. The shade builds predictably under drum conditions at pH 3.5–4.5, and formic acid gives better penetration into full-grain leather than acetic acid alone. On nylon carpet, it is used either as a standalone olive tone or blended into complex earth shades. At Yobai Industries we supply it as ACID BROWN CGG — shade strength and colour character tested before every batch is dispatched so the khaki and olive sequences you build stay reproducible lot to lot.

Across shade blending, AB83's green-brown undertone fills a gap that neither straight browns nor blues can provide. Recipes for stone-washed olive trousers, khaki military fabrics, and natural-toned suede all commonly specify it as a primary or secondary component. In combination with Acid Orange 142 the result shifts towards warmer earth; with Acid Blue 158 it shifts towards slate-olive. The consistent colour strength Yobai Industries maintains in ACID BROWN CGG means these multi-dye recipes remain reproducible batch to batch without formula adjustment.

Applications

Leather garment dyeing
Shoe upper leather
Wool and nylon fabric dyeing
Shade blending for complex browns

Substrates

Suitable For

Leather
Wool
Nylon

Benefits

Key Benefits

Distinctive greenish-brown shade
Good depth of colour on leather
Good compatibility with other acid dyes for shade development
Suitable for exhaust and pad dyeing
Reliable batch-to-batch consistency

Technical Specifications

Acid Brown 83 — Technical Specifications

Specifications are indicative. Contact us for a batch-specific TDS before placing a bulk order.

Parameter	Value
Product Name	Acid Brown 83
Trade Name	ACID BROWN CGG
CI Number	Acid Brown 83
CAS Number	Available on request
Colour	Greenish Brown
Appearance	Brown Powder
Ionic Character	Anionic
Solubility	Soluble in hot water.
Molecular Weight	~640 g/mol
Dye Class	Acid Dye
Sub-class	Milling Acid Dye
Application pH	3–5
Application Temp.	85–100°C
Required Auxiliaries	Acetic acid or formic acid to pH 3–5; sodium sulphate (10–20 g/L) for level dyeing
Wash Fastness	4
Light Fastness	4
Packaging	1 kg · 5 kg · 10 kg · 25 kg · 50 kg · Custom packaging available
Shelf Life	5 years from manufacture (cool, dry storage)
Manufacturer	Yobai Industries, Sayakha, Gujarat, India
GSTIN	GST Registered

Need a full TDS, COA, or MSDS? Request it here or WhatsApp us directly.

Shade Depth	% owf	Acid (pH)	Na₂SO₄ (g/L)	Temp (°C)	Time (min)
Pale Khaki	0.1–0.5%	pH 4.5–5	10–15	85	30
Olive Brown	0.5–1.5%	pH 4–5	15–20	90	45
Deep Olive	1.5–3.0%	pH 3.5–4.5	15–20	95	60
Dark Khaki	3.0–5.0%	pH 3–4	20	100	60–75

FAQ

Frequently Asked Questions — Acid Brown 83

Acid Brown 83 is a milling-class monoazo acid dye that produces a greenish-brown (olive) shade on wool, nylon, and leather. Unlike Acid Brown 75, which gives a warm red-brown (sienna), AB83 carries a distinctly cooler, more yellow-green undertone. This makes it the standard choice for khaki, olive, and earthy-green shade ranges where a standard warm brown would pull too red or too orange.

For chrome-tanned leather, run the drum at 40–55°C at pH 4–5 using formic acid. Dissolve the dye in warm water before adding. Run for 60–90 minutes for good cross-section penetration. Drop pH to 3.5 with formic acid in the final 15 minutes to fix the dye and improve rub fastness. Float ratio is typically 100–150% on weight of leather. For garment leather and upholstery splits, formic acid gives better penetration than acetic acid alone at the same pH.

In trichromatic acid dye recipes, AB83 serves as the primary component for olive, khaki, and earth tones on wool, nylon, and leather. Typical partners: Acid Yellow 42 (to warm and brighten the olive), Acid Black 52 (to darken towards army-khaki or dark olive), or Acid Blue 158 (to push into a slate-olive direction). Because AB83 exhausts as a milling dye, pair it with other milling-class dyes for predictable bath exhaustion and consistent shade lot to lot.

Yes. On wool, exhaust at pH 4–5 (acetic acid), 90–100°C for 45–60 minutes with sodium sulphate (15–20 g/L) as levelling agent. The olive-brown shade develops consistently on both worsted and woollen constructions. For knitwear, raise temperature gradually (below 1.5°C per minute) to prevent felting. The milling character ensures good wash and perspiration fastness on finished wool goods.

For pale khaki, use 0.1–0.5% owf at pH 4.5–5 and 85°C for 30 minutes. For a deeper olive-brown, increase to 1.5–3.0% owf at pH 3.5–4.5 and 95°C for 60 minutes. The green component of the shade strengthens relative to the brown as concentration increases — light shades read more beige-tan, deep shades read more olive-green. Adding a small amount of Acid Yellow 42 (0.1–0.3% owf) warms the shade at any depth without losing the characteristic olive character.

Yes. On chrome-tanned leather, AB83 gives a clean olive-brown with good penetration. On vegetable-tanned leather, the tannage imparts a warm background — AB83 deepens and shifts it towards earthy khaki. A lower dose is usually sufficient on veg-tan. Check the shade on a dry sample after fixation, as wet leather shades can appear darker and shift slightly on drying. Formic acid fixation at pH 3.5 is recommended for both types to ensure adequate rub fastness.

Yes. AB83 dyes nylon carpet at pH 4–5 using ammonium sulphate. Exhaust at 90–95°C for 45–60 minutes. It is particularly useful for earth-tone and natural-fibre-look carpet ranges where pure brown would look too warm. In blended recipes for stone, taupe, and warm grey carpet shades, AB83 contributes the olive dimension without the colour shifting excessively towards yellow or green on its own.

For dark army-khaki or olive-black tones: blend AB83 with Acid Black 52 (darkens without shifting hue) and Acid Yellow 42 (keeps the warmth). For a forest-floor brown-green: combine AB83 with Acid Green 25 (adds green brightness) and Acid Black 52 (deepens). All are milling-class or compatible acid dyes that work in the same acidic bath at pH 3.5–4.5. Confirm proportions with a lab trial before full-scale production.

Minimum order quantity is 10 kg. Samples of 1–5 kg are dispatched within 24 hours from Sayakha, Gujarat. Standard bulk orders ship within 7–15 working days. Every order ships with a GST invoice; a batch-specific COA and TDS are available on request. Contact us at technical@yobaiindustries.in or WhatsApp +91 97277 32326 for a quote.

Acid Brown 83 Manufacturer in India

Acid Brown 83 — Product Overview

Applications

Suitable For

Key Benefits

Acid Brown 83 — Technical Specifications

Acid Brown 83 — Chemical & Physical Data

Identification

Physical Properties

Acid Brown 83 — Recommended Dosage

Acid Brown 83 — Achievable Shades

Acid Brown 83 — Pack Sizes

Frequently Asked Questions — Acid Brown 83

Storage & Handling

Handling Precautions

Who Uses Acid Brown 83?

Acid Dyes — Available Grades

You May Also Need

Ready to Order Acid Brown 83?

Acid Brown 83 Manufacturer in India

Acid Brown 83 — Product Overview

Applications

Suitable For

Key Benefits

Acid Brown 83 — Technical Specifications

Acid Brown 83 — Chemical & Physical Data

Identification

Physical Properties

Acid Brown 83 — Recommended Dosage

Acid Brown 83 — Achievable Shades

Acid Brown 83 — Pack Sizes

Frequently Asked Questions — Acid Brown 83

What is Acid Brown 83 and how does its shade differ from other acid browns?

What are the recommended conditions for leather drum dyeing with Acid Brown 83?

How is Acid Brown 83 used in trichromatic shade recipes for olive and khaki?

Can Acid Brown 83 dye wool fabric?

How do I get a light khaki vs a deeper olive shade?

Does Acid Brown 83 work on both chrome-tanned and vegetable-tanned leather?

Can Acid Brown 83 be used for nylon carpet dyeing?

What dyes combine well with Acid Brown 83 for dark earth tones?

What is the MOQ and how quickly can you dispatch?

Storage & Handling

Handling Precautions

Who Uses Acid Brown 83?

Acid Dyes — Available Grades

You May Also Need

Ready to Order Acid Brown 83?