Direct Red 227 is a water-soluble direct (substantive) red dye formulated for cellulose fibers and paper, offering bright shade, easy application and reliable dyeing performance in exhaust, padding and printing processes.
Direct Fast Red FR,Direct Rose FR,Direct Blending Brilliant red D-FR,Solophenyl Red 7BE
It Used for cellulose fiber and polyester/cotton, polyester/stick blended a bath dyeing of, also can be used for paper color.
| Dyeing depth % | 2 |
| Insolubles % | 0.15 |
| Light Fastness | 3 |
| Washing Fatness | 4-5 |
| Rubbing fastness(dry) | 4 |
| Rubbing fastness(wet) | 3 |
sun exposure | standard depth | 3~4 |
1/12 depth | — | |
soaping | original color change | 4 |
white fiber stained | 3 | |
flooding | original color change | — |
white fiber stained | — | |
perspiration | original color change | 4~5 |
white fiber stained | 4~5 | |
rubbing | wet | 3~4 |
dry | 4~5 | |
ironing | — | |
acid and alkali resistant | sulfuric acid | — |
acetic acid | — | |
soda ash | — |
Dissolve the dye in hot water to make a clear stock solution, add to the dye bath at 40–60°C for pre-wet cotton, raise temperature gradually to 60–80°C for exhaustion, hold until target exhaustion, then carry out an alkaline/oxidative fixation or rinse/soaping as your process specifies. Use a small amount of leveling agent to prevent patchiness on coarser yarns.
After dyeing, perform a hot soaping step with 1–3 g/L nonionic detergent at 60–70°C to remove unfixed dye, then neutralize and rinse. For tougher wet-rub needs, consider a cationic after-fixing agent or polymeric crosslink/finishing that is compatible with the substrate; test impact on hand and shade before production scale-up.
Yes — it works well in direct dye printing pastes. Use a thixotropic gum base (e.g., modified starch or CMC with a binder), keep dye concentration moderate to avoid bleeding, and include a sequestrant and leveling assistant. Steam fixation (pad-steam) followed by thorough washing / soaping gives the best balance of color yield and fastness.
It is suitable for water-based paper coloration and some aqueous inks where a soluble dye is acceptable. For inkjet use, ensure the formulation controls migration (use humectants and binders) and test bleed/feathering on your paper grade. For printed packaging that needs lightfastness, evaluate alternatives or UV-protective overcoats.
Watch for shade shift (slight hue differences), differences in exhaustion kinetics (may require temperature or liquor ratio adjustments), and compatibility with your current auxiliaries. Run lab trials to match shade and fastness; small changes in pH, sequestering agents, or leveling agents can alter performance noticeably.
