China Acid Dyes Manufacturers, Suppliers and Factory - Good Price Acid Dyes

Acid Dyes

Acid dyes are water-soluble, anionic dyes designed primarily for protein and polyamide fibers. Containing sulfonic acid groups (-SO₃H), they form ionic bonds with positively charged amino groups in wool, silk, and nylon under acidic to neutral conditions. This chemistry makes acid dyes the standard choice for protein fiber dyeing worldwide.

Acid Yellow 11
PRODUCT NAME: Acid Yellow 11. TYPE: Acid Dyes for Wool. CAS NO: 6359-82-6. MOQ: 25KG. PACKAGE: Carton.
Acid Red 1
PRODUCT NAME: Acid Red 1. TYPE: Acid Dyes for Wool. CAS NO: 3734-67-6. MOQ: 25KG. PACKAGE: Carton.
Acid Black 24
PRODUCT NAME: Acid Black 24. TYPE: Acid Dyes for Wool. CAS NO: 3071-73-6. MOQ: 25KG. PACKAGE: Carton.
Acid Black 172
PRODUCT NAME: Acid Black 172. TYPE: Acid Dyes for Nylon. CAS NO: 61847-77-6/57696-14-8. MOQ: 25KG. PACKAGE: Carton.
Acid Red 249
PRODUCT NAME: Acid Red 249. TYPE: Acid Dyes for Nylon. CAS NO: 6416-66-6/109181-04-6. MOQ: 25KG. PACKAGE: Carton.
Acid Orange 7
PRODUCT NAME: Acid Orange 7. TYPE: Acid Dyes for Nylon. CAS NO: 633-96-5/573-89-7. MOQ: 25KG. PACKAGE: Carton.
Acid Blue 127:1
PRODUCT NAME: Acid Blue 127:1. TYPE: Acid Dyes for Nylon. CAS NO: 25826-86-0/25826-34-0/31353-92-1. MOQ: 25KG. PACKAGE: Carton.

Your Professional Dyes Supplier

INNO-CHEM is a professional manufacturer and exporter of dyes, chemicals, textile auxiliaries, and TPU films in China. Our main products include disperse, reactive, acid, direct, vat, solvent, and cationic dyes, as well as dye intermediates and specialty chemicals. These products are widely used in textile dyeing, printing, inks, plastics, leather, coatings, and polymer processing.

Advanced Production System

Equipped with automated production lines, DCS control systems, spray drying towers, and testing laboratories to ensure stable quality and efficient manufacturing.

Strict Quality Control

Each batch is tested by HPLC, GC, and other inspection equipment to ensure purity, consistency, and reliable application performance.

Global Export Experience

Products are exported to Southeast Asia, the Middle East, South America, Japan, and South Korea with strong market recognition and stable cooperation.

24/7 Online Support

Use our online customer service window for any inquiries. We guarantee a 24-hour response time and ensure you never face delays due to communication gaps.

Parameter

Fastness to Washing	5
Fastness to Light	5-6
Fastness to Perspiration	5
Fastness to Wet Rubbing	4-5
Fastness to Dry Rubbing	5
Staining Depth	2
Applicable Fibers	Wool, silk, nylon (polyamide), leather

Advantages of Acid Dyes

Bright colors and complete color spectrum

They can produce very bright and saturated colors, especially reds, blues, and purples.

Good leveling properties

By controlling pH and temperature, uniform dyeing results can be obtained.

Diverse wet fastness

Different types of acid dyes have a wide range of wet fastness, ranging from average to excellent.

Relatively simple process

The dyeing method is direct and easy to operate.

Common Methods for Dyeing with Acid Dyes

Immersion Dyeing

This classic technique involves submerging your fibers in the dyebath, resulting in solid, even colors.

Hand-painting

For a more artistic approach, hand-painting dyes onto fibers using brushes or squirt bottles can yield stunning, one-of-a-kind patterns.

Tie-dyeing

Embrace the groovy vibes of tie-dye by folding, twisting, and binding your fibers before dyeing, creating mesmerizing swirls and designs.

Gradient Dyeing

Achieve a seamless transition of colors by carefully controlling the dye absorption and manipulation of your fibers.

Properties

The Properties of Acid Dyes define their performance across different industrial applications.

1.Water Solubility: Easily dissolves for uniform dye bath preparation

2.Affinity for Protein and Nylon Fibres: Strong bonding capability ensures effective dye uptake

3.Wide Shade Range: Capable of producing bright to deep tones

4.Controlled Dyeing Behaviour: Enables consistent results under regulated conditions

5.Moderate to High Fastness: Performance varies depending on dye type and application

Application

1.Textile Industry：

1）Wool, silk, and nylon dyeing

2）Apparel, carpets, and upholstery fabrics

3）Fashion and technical textiles

2.Leather Industry：

1）Dyeing of leather goods such as footwear and accessories

2）Uniform colour penetration across surfaces

3.Paper and Packaging：

1）Colouring specialty papers

2）Decorative and functional paper products

Ordering Process

Inquiry

Quotation

Communication

Order confirming

Deposit payment

Production

Testing and debugging

Balance payment

Packing

Delivery

Customer receiving

After service

Packaging and Shipping

Packaging	Packaged in barrels, cartons, or bags
Shipping	By sea

Our Factory

We have a production base with hundreds of workers on the production line, equipped with advanced equipment and manufacturing technology. We produce over 30,000 tons of dyes and auxiliary products annually, including 12,000 tons of disperse dyes and 15,000 tons of direct, acid, and basic dyes.

Our Certificates

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FAQ

Q: Can acid dyes be used on cotton or polyester?

A: Acid dyes are not suitable for cotton — cotton has no affinity for anionic dyes. For cotton, use reactive, direct, or vat dyes. Acid dyes do not work on polyester — polyester requires disperse dyes. However, acid dyes can dye nylon effectively because nylon contains amino groups similar to wool, making it receptive to acid dye chemistry.

Q: Why do acid dyes sometimes produce unlevel dyeing on wool?

A: Uneven dyeing usually results from: (1) Excessive rate of exhaustion — dye strikes the fiber too quickly; (2) Insufficient acid — pH too high causes slow, uneven uptake; (3) Temperature too high at start — rapid strike before leveling occurs. Solutions: Add dye at 50°C, heat slowly to boil, use leveling agents (e.g., Albegal B) to slow initial strike, ensure adequate acid for even exhaustion.

Q: Do acid dyes require salt in the dye bath?

A: Generally no salt is needed for acid dyeing wool, silk, or nylon — unlike cotton dyeing where salt promotes exhaustion. The acid itself drives exhaustion by protonating fiber amino groups. However, for very deep shades, small amounts of Glauber's salt (10-20 g/L) may assist exhaustion without causing harsh handle. Using leveling agents is preferred over salt for controlling exhaustion rate.

As one of the most professional acid dyes manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please feel free to buy high-grade acid dyes made in China here from our factory. For price consultation, contact us.