Direct Red 224 (Direct blended red D-F2G) Appearance is a reddish purple uniform powder, soluble in water.
TRADE NAME:Direct Red F2G,Direct blending red D,Direct Scarlet D-F2G,Direct Blending Scarlet D-F2G,Direct Fast Scarlet F2G,Direct Fast Red F2G
Key features
- Fiber affinity: high uptake on cotton, viscose and polyester/cotton blends.
- Shade: bright, uniform red with slight yellow tone.
- Fastness: moderate–good light fastness; good washing and rubbing fastness (typical ISO ratings ~3–4 for light; 4–5 for wash).
- Application modes: one-bath one-step dyeing for polyester/cotton blends, direct dyeing and paper coloring; also used in printing and leather finishing.
- Use notes: stable in mixed dye baths and compatible with disperse dyes for blended goods; requires usual salt/auxiliary control for even exhaustion.
Technical Specifications
- CAS NO: 12222-48-9
- CI.NO: direct red 224
- Molecular Formula: C41H34N10Na4O18S4
- Molecular Weight: 1174.99
- Shade: Bluish Red
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 3-4 |
| Washing Fatness | 4-5 |
| Rubbing fastness(dry) | 3-4 |
| Rubbing fastnss(wet) | 3 |
Colour Fastness Test
sun exposure | soaping | flooding | perspiration | rubbing | ironing | acid and alkali resistant |
standard depth | 1/12 depth | original color change | white fiber stained | original color change | white fiber stained | original color change | white fiber stained | dry | wet | | sulfuric acid | acetic acid | soda ash |
4 | — | 4 | 3 | — | — | 4~5 | 3 | — | — | — | — | — | — |
Application:
Direct Red 224 Used for cellulose fiber and polyester/cotton, polyester/stick blended a bath dyeing of, also can be used for paper color.
Use condition:
- Direct Red 224 For the one-bath one-step dyeing process of polyester-cotton, polyester-bonded or cotton-nitrile blended fabrics, the dyeing of cotton and viscose fibers can be dyed in the same bath as the disperse dyes or as a direct dye.
- It has high directness to cellulose fiber and high dyeing rate, that is, it also has a high dye uptake rate when a small amount of inorganic salt is used.
- The dye solution has good stability and does not agglomerate in the dye bath at 130 ° C.
- The pH value of the dye bath It has a wide adaptability range and has a good dye uptake rate for cellulose fibers under acidic conditions.
FAQ
How good is the color fastness?
Typical data show moderate–good light fastness (ISO ~3–4) and good washing fastness (ISO ~4–5); exact values depend on substrate and dyeing conditions—always run lab tests.
Can it be used in one-bath dyeing of polyester/cotton?
Yes — it’s commonly used in one-bath one-step processes alongside disperse dyes for blended fabrics, with appropriate auxiliaries and temperature control.
What safety / handling points should I follow?
Follow the product MSDS: avoid inhalation, use gloves and eye protection, control wastewater per local regulations, and test small batches before scale-up.
How do I get an exact shade match?
Control liquor ratio, pH, salt level and temperature; prepare lab trials and produce a recipe (bath depth, auxiliaries, sequence) for reproducible results.
