The ITOFIX VF Servies is a composite range based on monofluorotriazine reactive dyes which exhibit very hight light fastness.
ITOFIX VF dyes are ideally suited for pale or bright shades as Itofix Red VF2BL shows superior light fastness to standard trichromatic reactive red dyes.
| ITOFIX VF Dyeing Method | |
| Exhaust | |
| Recipe : | x% Dye |
| 0.5g/l Itoquest LJ3-12 | |
| y g/l Salt | |
| z g/l Alkali | |
| Method : | Heat to 40ºC. |
| Add chemicals and salt, run for 10 minutes. | |
| Heat to 80ºC. | |
| Add dyes, run for 45 minutes. | |
| Cool to 60ºC. | |
| Add alkali over 30 minutes. | |
| (by portions or progressive dosing) | |
| Run for 40 to 60 minutes at 60ºC. | |
| Drop liquor and rinse, acid rinse, soap at 100ºC. | |
| Cold Pad Batch | |
| Recipe : | x g/l Dye |
| 50g/l Itoprep MSS | |
| x/5+8 cc/l Caustic Soda 70TW (x is dye value in g/l) | |
| 0.2g/l Itowet LJ10 | |
| Method : | Make dye solution up to 4/5 total volume. |
| Make chemical solution up to 1/5 total volume. | |
| Mix dye and chemical solutions and pad immediately. | |
| Batch long test for 16-24 hours | |
| (Quick test 30 mins at 60ºC). | |
| Rinse, acid rinse, soap at 100ºC. | |
Fastness Test Methods
The fastness properties were tested at 1/1 standard depths.
The fastness is given for untreated undefined.
| Light Fastness | ISO 105-B02 |
| Wash Fastness | ISO 105-C02 |
| Perspiration Fastness | ISO 105-E02 |
| Water Fastness | ISO 105-E01 |
Symbols Used In Fastness Columns
| CS | Change of shade |
| C | Staining on cotton |
| V | Staining on viscose |
| Salt and Alkali Table | ||||
| % Dyestuff | Glaubers Salt | Soda Ash | OR | Soda Ash + Caustic 70tw |
| <0.5 | 30 | 8 | – | |
| >0.5 – 1.0 | 40 | 10 | 5+0.5 | |
| >1.0 – 2.0 | 50 | 15 | 5+1.0 | |
| >2.0 – 3.0 | 60 | 20 | 5+1.25 | |
| >3.0 – 4.0 | 80 | 20 | 5+1.5 | |
| >4.0 – 5.0 | 90 | – | 5+2.0 | |
| >5.0 | 100 | – | 5+2.5 | |
| ITOFIX | Fastness Properties at 2% | |||||||||||
| Sol | Light | Wash 50ºC | Alk Persp | Water | ||||||||
| Dyed at 1% | 60ºC | 1/1 | CS | C | V | CS | C | V | CS | C | V | |
| Yellow VF2RN | 100 | 5/6 | 5 | 5 | 5 | 4/5 | 5 | 5 | 4/5 | 5 | 5 | |
| Red VF2BL | 100 | 5/6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | |
| Blue VFRN | 100 | 7 | 5 | 4/5 | 5 | 5 | 5 | 5 | 4/5 | 5 | 5 | |