Direct blue dyes have water-soluble groups such as sulfonic acid group (-SO3H) or carboxyl group (-COOH) arranged in linear molecular structure.

The aromatic ring structure is in the same plane, so the direct dye has a greater affinity for the cellulose fiber.

It can be dyed directly in a neutral medium. As long as the dye is dissolved dry water, it can be dyed.

Our direct blue dyes list for dyeing cotton:

» Direct sky blue 5B C.I. Diect blue 15

» Direct turquoise blue GL C.I. Dirct blue 86

» Direct copper blue 2R C.I. Direct blue 151

» Direct blue 199

Advantage of direct blue dyes for cotton

» Fast dyeing speed

» Uniform coloring

» High fastness

» More color shade choices

Welcome to contact with us–the rhodamine B dye leading manufacturer in China.

Contact person: Miss Jessie Geng

Email:jessie@xcwychem.com

Mobilephone/Whatsapp: +86-13503270825