Basic Yellow 28 Appearance is yellow powder (or liquid), soluble in water and yellow. It is orange in concentrated sulfuric acid and turns yellow after dilution. The aqueous solution of dye is added with sodium hydroxide as colorless. It is dyed at 120 °C and the color is unchanged. It is not suitable for boiling when dissolved. The pH of the dye bath is stable in the range of 3-6. The blocking group of the dispersed cationic golden SD-GL is 1-naphthalenesulfonate.
Cationic yellow 28,Cationic Yellow X-GL,Basic Golden Yellow X-GL,Catonic Gold Yellow X-GL,Special Golden Yellow X-GL
Cost-effective solution for vivid shades in industrial dyeing
Basic Yellow 28 Mainly used in acrylic fiber, scattered article fiber dyeing, can be used for direct printing acrylic and silk, also can be used for modification polyester fiber, acetate fiber and PVC fiber dyeing.
Product Name: Basic Yellow 28
CAS NO: 54060-92-3
| Light Fastness | 7 |
| Perspiration Fastness(fading) | 5 |
| Perspiration Fastness(stain) | 5 |
| Soaping(fading) | 4 |
| Soaping(stain) | 5 |
Color | Yellow |
Appearance | Liquid |
Content | 40% |
Odor | Tasteless |
Melting point | none |
Flash point | > 70 ℃ |
Boiling point | > 100 ℃ |
Water soluble | soluble |
PH value | 2.0-5.0 |
Density (g / cm3) | 1.05-1.15 |
Item | Original color change | acrylic stain | viscose stain | wool stain | Item | Original color change | acrylic stain | viscose stain | wool stain | |||
Light fastness | 1/3(light) | 6~7 | — | — | — | Alkaline fluff | mild | 5 | 5 | 5 | 5 | |
1/1 | 7 | — | — | — | severe | 5 | 5 | 5 | 5 | |||
2/1 | 7 | — | — | — | cross dyeing property | neutral | 3~4 | 2~3 | 4~5 | 3~4 | ||
Flooding(severe) | 5 | 5 | 5 | 5 | Acid | 4 | 2~3 | 4~5 | 4~5 | |||
Soaping | 40℃ | 5 | 5 | 5 | 5 | Oxygen bleaching | 4~5 | 5 | 5 | — | ||
60℃ | 4~5 | 5 | 5 | 5 | Chlorine bleaching | mild | 5 | — | — | — | ||
Perspiration | Alkali | 5 | 5 | 5 | 5 | severe | 5 | — | — | — | ||
Acid | 5 | 5 | 5 | 5 | Chlorine | 5 | — | — | — | |||
Sea | 5 | 5 | 5 | 5 | Steaming | 0.05MPa | 5 | — | — | — | ||
Rubbing | Dry | — | — | 5 | — | 0.15MPa | 4~5 | — | — | — | ||
Wet | — | — | 5 | — | Dry hot pleat shaping | 30s,150℃ | 5 | 5 | 5 | — | ||
Ironing | Dry | Immidiately | 3R | — | — | — | 30s,180℃ | 4~5 | 4~5 | 5 | — | |
4hafter | 5 | — | — | — | Carbonization | not neutral | 5 | — | — | — | ||
Wet | — | — | 5 | — | neutral | 5 | — | — | — | |||
Dry cleaning(trichloro ethylene) | 5 | 5 | 5 | 5 | 5 | — | — | — | ||||
Basic Yellow 28 shows strongest substantivity on acrylic fibers and good uptake on protein fibers such as wool and silk. It is also widely used in aqueous inks and paper applications; compatibility with plastics and coatings depends on the specific polymer and formulation.
The dye is water-soluble and dissolves readily to form clear dye solutions. For accurate shade replication, pre-dissolve the measured dye in warm water, add to the main bath under agitation, and perform a small trial to confirm shade and build-up before full production.
Start small: perform lab trials in the range of 0.01%–0.5% owf (on-weight-of-fiber) depending on desired intensity and fabric type. Because Basic Yellow 28 has high tinctorial strength, increments should be small — record each trial so you can scale reliably.
To improve fastness, use appropriate after-fixation treatments (fixatives for protein fibers), UV absorbers or antioxidants in ink and coating systems, and consider blending with more lightfast dyes. Always validate any treatment with accelerated fastness testing.
