ITOFIX VSRGB dyes are a range of dyes based on vinyl sulphone chemistry.
Ideal for medium and deep shades by exhaust or cold pad batch application methods offering good repeatibility.
| ITOFIX VSRGB 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 50ºC. | |
| Add dyes, run for 30 minutes. | |
| Add alkali over 30 minutes. | |
| (by portions or progressive dosing) | |
| Run for 40 to 60 minutes at 50ºC. | |
| 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
| C | Staining on cotton |
| N | Staining on nylon |
| W | Staining on wool |
| Salt and Alkali Table | (Based on 100% strength dyestuffs) | |||
| % Dyestuff | Glaubers Salt | Soda Ash | OR | Soda Ash + Caustic 70tw |
| <0.3 | 10 | 10 | – | |
| >0.3 – 0.6 | 20 | 10 | – | |
| >0.6 – 1.0 | 30 | 15 | 5+1.0 | |
| >1.0 – 1.5 | 40 | 15 | 5+1.5 | |
| >1.5 – 3.0 | 50 | 20 | 5+2.0 | |
| >3.0 – 5.0 | 80 | – | 5+3.5 | |
| >5.0 | 100 | – | 5+5.0 | |
| ITOFIX | Fastness Properties at 3% | |||||||||||
| Sol | Light | Wash 50ºC | Alk Persp | Water | ||||||||
| Dyed at 2%, Navy and Black at 4% | 80ºC | 1/1 | C | N | W | C | N | W | C | N | W | |
| Yellow VSRGB | 100 | 5 | 5 | 5 | 5 | 5 | 4/5 | 5 | 5 | 5 | 5 | |
| Orange VSRGB | 100 | 5 | 4 | 4 | 5 | 4/5 | 4/5 | 4/5 | 5 | 5 | 5 | |
| Red VSRGB | 100 | 4 | 4 | 4/5 | 5 | 5 | 4/5 | 5 | 5 | 5 | 5 | |
| Blue VSRGB | 100 | 4/5 | 5 | 5 | 5 | 4/5 | 4/5 | 4/5 | 5 | 5 | 5 | |
| Navy VSRGB | 100 | 3/4 | 4/5 | 5 | 5 | 4/5 | 4/5 | 4/5 | 5 | 5 | 5 | |
| Black VSRGB | 100 | 4 | 4/5 | 4 | 5 | 4/5 | 4/5 | 4/5 | 5 | 5 | 5 | |