Acid Dyes

High-Performance Acid Dyes for Brilliant & Long-Lasting Color

Acid dyes are water-soluble anionic (negatively charged) dyes used primarily on protein fibers like wool and silk, as well as synthetic polyamide fibers like nylon. Chemically, they are typically sodium salts of organic acids, such as sulfonic or carboxylic acids. The application process requires an acidic dye bath, typically adjusted with acetic or formic acid. This acidity protonates the amine groups in the fiber, creating positive sites that form strong ionic bonds with the negatively charged dye molecules.

Acid dyes are celebrated for producing an exceptionally bright, vibrant color palette with excellent leveling properties and high lightfastness. However, their washfastness varies considerably depending on the specific molecular weight of the dye; heavier pre-metallized or milling acid dyes offer much better wet-fastness than simpler leveling acid dyes, which can bleed easily in warm water without chemical post-treatments.

Acid Dyes Shade Card

Yellow G

1%

4%

Yellow 2G

1%

4%

Yellow 5GN

1%

4%

Metanil Yellow

1%

4%

Yellow GL

1%

4%

Yellow 2GLN

1%

4%

Yellow M2RL

1%

4%

Orange ll

1%

4%

Orange G

1%

4%

Orange RL

1%

4%

Orange M2RL

1%

4%

Blue FF

1%

4%

Patent Blue AS

1%

4%

Violet 4BS

1%

4%

Navy Blue S5R

1%

4%

Navy Blue 2G

1%

4%

Blue MTR

1%

4%

Violet 2RL

1%

4%

Green V

1%

4%

Green SP

1%

4%

Green FS

1%

4%

Scarlet 3R

1%

4%

Fast Red A

1%

4%

Red GNB

1%

4%

Red 2B

1%

4%

Blood Red

1%

4%

Crimson Red

1%

4%

Red 5R

1%

4%

Red 3B

1%

4%

Scarlet ML

1%

4%

Red MBR

1%

4%

Red 3BN

1%

4%

Maroon V

1%

4%

PInk BE

1%

4%

Brown 2RL

1%

4%

Dark Brown 5R

1%

4%

Brown SP

1%

4%

Brown BS

1%

4%

Brown GR

1%

4%

Brown SR

1%

4%

Brown SG

1%

4%

Brown Reddish

1%

4%

Brown MBL

1%

4%

Brown M2RL

1%

4%

Black 10BX

1%

4%

Black WA

1%

4%

Black MSRL

1%

4%

Black NB2G

1%

4%

Black HS

1%

4%

Grey BL

1%

4%

Bordeaux MB

1%

4%

About Us

Vinay Dyes & Chemicals is a trusted wholesaler, and stockist of high-quality textile dyes and specialty chemicals, offering a wide portfolio of over 400 products for textile and industrial applications.