Direct Yellow 86

Name: Direct Yellow 86
Availability: InStock

Direct Yellow 86 is a high-performance direct dye widely used in textile applications, especially for cotton, viscose, and blended fabrics. It is renowned for its bright yellow hue, excellent water solubility, and reliable colorfastness properties, making it suitable for industrial-scale dyeing processes.

TRADE NAME:Direct Yellow D-RL,Direct Yellow RL,Direct blended yellow D,Direct Fast Yellow D-RLG,Direct Fast Yellow D-RL

Main Features:

‍High color strength for vibrant yellow shades
Excellent water solubility for uniform dyeing
Superior lightfastness and washing fastness
Consistent performance in both batch and continuous dyeing
Suitable for cotton, viscose, and blended fabrics
Low tendency for bleeding and migration‍

Technical Specifications

‍CAS NO: 50925-42-3
CI.NO: 29325
Molecular Formula: C39H30N10Na4O13S4
Molecular Weight:1066.94
Shade: red light yellow.‍

Dyeing depth %	2
Insolubles %	0.15
Light Fastness	6
Washing Fatness	2-3
Rubbing fastness(dry)	4-5
Rubbing fastness(wet)	3

Colour Fastness Test

sun exposure	standard depth	5~6
sun exposure	1/12 depth	—
soaping	original color change	4~5
soaping	white fiber stained	4~5
flooding	original color change	—
flooding	white fiber stained	—
perspiration	original color change	3
perspiration	white fiber stained	4~5
rubbing	wet	3~4
rubbing	dry	4
ironing		—
acid and alkali resistant	sulfuric acid	—
	acetic acid	—
	soda ash	—

Application:

Direct Yellow 86 Most suitable for dyeing of viscose like cotton, flax, viscose rayon, acetate and jute, also for Ink, Leather and Paper coloration.

Use condition:

‍Direct Yellow 86 For the dyeing of cotton and viscose fibers in a one-bath one-step dyeing process for polyester-cotton, polyester-bonded or cotton-nitrile blended fabrics, it can be dyed in the same bath as the disperse dyes, or as a direct dye.
It can be used as a substitute dye for CI Direct Yellow 24 and CI Direct Yellow 48.
It has high directness to cellulose fiber and high dyeing rate, that is, it uses a small amount of inorganic salt and has a high dye uptake rate.
There is no aggregation in the dye bath at 130 ° C. The pH value of the dye bath is wide, and the cellulose dye has a good dye uptake rate under acidic conditions.‍

FAQ

How does Direct Yellow 86 perform in terms of colorfastness?

This dye exhibits excellent washing, light, and rubbing fastness. It maintains its brightness and intensity even after multiple industrial washes, making it suitable for both apparel and home textiles.

Can Direct Yellow 86 be mixed with other dyes?

Yes, it can be combined with other direct or reactive dyes to achieve custom shades. However, proper testing is recommended to avoid unexpected color shifts and to ensure uniformity.

Is Direct Yellow 86 safe for industrial dyeing processes?

Yes, it is manufactured under strict industrial standards, ensuring safe handling. Adequate protective equipment should be used, and effluent treatment is recommended to meet environmental regulations.

What is the best method to ensure uniform dyeing with Direct Yellow 86?

For optimal results, maintain consistent bath temperature, proper pH control, and thorough agitation during the dyeing process. Pre-wetting the fabric improves penetration and uniform color development.