China Disperse Red S-5BL (C.I. Disperse Red 16- High-Quality Suppliers and Factory for Textile Dyes
Disperse Red 167 (Disperse Rubine S-2GFL) is a monoazo disperse dye widely used for dyeing hydrophobic synthetic fibers such as polyester. Industrially, it is generally applied as a high-temperature type disperse dye.
Physical & Chemical Properties
Solubility
Insoluble in water, soluble in acetone, DMF, aromatic solvents.
Optimal Dyeing pH
4.0~5.0 (weak acid condition), resistant to weak acid, unstable under strong alkali.
Ion Resistance
Shade barely affected by iron & copper ions in dye bath.
Diffusion Grade
≥ Grade 4; excellent high-temperature dispersion stability, no agglomeration & filter clogging.
Shade
Rich rubine red with outstanding deep-dyeing capacity, classic red component for high-temperature three-primary color system.
Applicable Dyeing Processes
Preferred Process
130℃ high-temperature high-pressure exhaust dyeing.
Thermosol Pad Dyeing
For mass continuous production, thermosol temp ≥200℃ recommended.
Printing Applications
Direct flat screen & rotary screen printing on polyester; applicable as base shade for P/C discharge printing.
Not suitable for carrier dyeing; incompatible with alkali-containing reactive dyes in one-bath printing.
Frequently Asked Questions (FAQ)
Q: What is Disperse Red 167 primarily used for?
It is a monoazo disperse dye widely used for dyeing hydrophobic synthetic fibers, particularly polyester, and is generally applied as a high-temperature type disperse dye.
Q: What is the optimal pH range for dyeing with Disperse Red 167?
The optimal dyeing pH range is 4.0 to 5.0 (weak acid conditions). It is resistant to weak acids but unstable under strong alkaline conditions.
Q: How does Disperse Red 167 perform regarding ion resistance in the dye bath?
It shows excellent ion resistance, meaning its color shade is barely affected by the presence of iron and copper ions in the dye bath.
Q: What is the recommended temperature for thermosol pad dyeing?
For mass continuous production using thermosol pad dyeing, a thermosol temperature of ≥200℃ is recommended.
Q: Are there any dyeing processes or combinations to avoid with Disperse Red 167?
Yes, it is not suitable for carrier dyeing and is incompatible with alkali-containing reactive dyes in one-bath printing processes.
Q: What is the diffusion stability of Disperse Red 167 at high temperatures?
It has a diffusion grade of ≥ Grade 4, indicating excellent high-temperature dispersion stability with no risk of agglomeration or filter clogging.