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Acid Yellow 14

Acid Yellow 14 is a water-soluble anionic acid dye that produces bright, clear yellow shades. It is formulated for acid-dyeing processes and shows good affinity for protein and polyamide fibers, making it suitable for applications in textiles, leather, paper, and aqueous inks. Acid Yellow 14 is valued for its vivid chroma and ease of application in standard acid dye systems.

TRADE NAME:

Weak Acid Yellow 3G,Acid Leather Yellow GL,Acid Brilliant Yellow 2G

Key features

  • Bright, high-chroma yellow suitable for vivid shades and blends
  • Water-soluble and readily dispersible in dye baths
  • Good affinity to protein fibers (wool, silk) and polyamides (nylon)
  • Consistent leveling in well-controlled acid dyeing systems
  • Compatible with common acid dye auxiliaries and leveling agents
  • Suitable for textile dyeing, leather finishing, paper tinting and some aqueous ink formulations
  • Can be blended with other acid dyes to achieve custom shades
  • Stable in normal storage when kept dry and sealed

Application of Acid Yellow 14:

Used for dyeing wool and silk, good leveling.

Technical Specifications

  • ‍CAS NO: 6359-97-3
  • CI.NO: 18960
  • Molecular Formula:C16H11Cl2N4NaO4S
  • Molecular Molecular Weight: 449.24‍

Test Methods

fiber

Alkali resistance

Carbonization

potting

Oxygen bleaching

Alkali shrinkage

Seawater discoloration

soaping

Perspiration

Sun exposure

discolor

Staining

ISO

wool

3~4

4~5

4~5

1~2

1~2

3

2

4

3

6

What fibers take Acid Yellow 14 best?

Acid Yellow 14 shows strongest affinity for protein fibers (wool, silk) and synthetic polyamides (nylon). It is primarily used in acid dyeing processes; compatibility with other fiber types depends on process chemistry and may require pre- or post-treatment.

What fastness properties can I expect and how to improve them?

Acid Yellow 14 typically gives bright color with moderate wash and lightfastness. Fastness can be improved by after-treatments (e.g., appropriate fixatives or finishing resins), optimizing exhaustion, and choosing complementary auxiliary chemistries for the fiber type.

Is Acid Yellow 14 suitable for textile inks and digital printing?

Yes for some aqueous ink systems — especially where a water-soluble acid dye is required for substrate affinity. Compatibility depends on the ink vehicle, binder, and print process; test for bleed, crocking and lightfastness before production use.

Can Acid Yellow 14 be blended with other dyes to achieve new shades?

Yes — it blends well with other acid dyes to produce a wide range of yellow-green to orange-yellow tones. For predictable results, prepare small-scale mix trials and record the blend ratios and process parameters.

Are there environmental or wastewater considerations when using Acid Yellow 14?

Because it is water-soluble, residual dye may remain in effluent. Implement good bath control, recovery, and wastewater treatment (filtration, adsorption or biological treatment) to reduce color load and chemical oxygen demand (COD).

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