| Fir Type for Acid dyes | Firat series | Fir three-primary color series | Firsol Type for Reactive dyes for wool | Direct dyes |
| Direct dyes | |||||||||||||||
| Product name | C. I. | Specification | Sample of dyed fabrics | Sunlight fastness | Washing | Sweat | Rub (dry)(wet) |
Chlorination | Milling | ||||||
| Acid | Alkaline | ||||||||||||||
| Change | Color stain | Change | Color stain | ||||||||||||
| Direct fast blue B | D.B 106 | 180% | 6-7 | 4-5 | 4-5 | 4-5 3-4 | 4-5 | - | - | 4 | - | ||||
| Note: reference only | |||||||||||||||