Dayvat Vat Dyes
Please note that the colours on this document are for demonstration purposes only as colours vary with individual monitors and therefore cannot be guaranteed as accurate. Vat dyes are those dyes which are applied to the substrate in reduced, soluble form and then oxidize to the original insoluble pigment. Common vat dyes are quinonic dyes and particularly common are anthraquinones and indigoids. These dyes are essentially insoluble in water and incapable of dyeing fibres directly. However, reduction in alkaline liquor produces the water soluble alkali metal salt of the dye. In this leuco form these dyes have an affinity for the textile fibre. Subsequent oxidation reforms the original insoluble dye. Most vat dyes are less suitable than, say, fiber reactive dyes, for the home dyers, as they are difficult to work with; they require a reducing agent to solubilize them.
Indigo is an example of this dye class. Vat dye is obtained through oxidation. It is usually very bright and will hold up better when bleached than most other dyes. The process is very colorfast in all respects. This is an expensive procedure and is used mainly on high-end products. Vat dyes include the natural dyestuff, indigo, and the artificial dyes called by the trade names, indanthrene, and flavanthrene. They are called vat dyes because, being originally insoluble in water, they undergo special preparation in large vats before the cloth is introduced; here they are made soluble, usually by the adding of caustic soda and hyposulphite. In this mixture or dye liquor the textiles are soaked. Certain chemicals are thereafter added, changing the dyestuff back to the insoluble form in the cloth or fiber. This is called the fixing process.
All the vat dyes are fast, especially to washing. The artificial vat dyes have in many instances taken the places of the older mordant dyes, and their future seems promising, for they are cheaper and easier to apply than the mordants, although not so cheap and convenient as the direct dyes. Both cotton and wool, as well as other fibers, can be dyed with vat dyes. "Vat dyeing" means dyeing in a bucket or vat. It can be done whenever a solid even shade, the same color over the entire garment, is wanted, using almost any dye, including fiber reactive dye, direct dye, acid dye, etc. The opposite of vat dyeing is direct dye application, such as, for example, tie dyeing. "Vat dyes" are a special class of dyes that work with a special chemistry.
Dayvat Indigosol Vat
Dayglo range of vat dyes are complex derivatives of anthraquinone and have all round fastness properties when applied to cellulosic textiles. They are commercially available in Powder Fine. The Powder Fine variety is recommended for all batchwise (reduced) dyeing method. Supra Disperse/Microperle brands are specifically designed to give ultra fine dispersion characteristics and fast rates of reduction. They are of special value in the field of high speed continuous dyeing and are suitable for use by all leuco-dyeing techniques as also for all pre-pigmentation methods in exhaust dyeing.
| Products' Name | Colour | C.I.Name | C.I.No. | The Equivalents |
|---|---|---|---|---|
| Dayvat Yellow 2GN | Vat Yellow 1 | Youhaothrene Yellow G | ||
| Dayvat Yellow GC | Vat Yellow 2 | Orcovat Yellow GCN Pst | ||
| Dayvat Yellow 5G | Vat Yellow 2 | Orcovat Yellow GCN Pst | ||
| Dayvat Yellow 4G | Vat Yellow 33 | Indanthrene Yellow F3GL Paste | ||
| Dayvat Yellow G | Vat Yellow 46 | Indanthren Yellow 5GF | ||
| Dayvat Golden Yellow RK | Vat Orange 1 | Anthrasol Golden Yellow IRK | ||
| Dayvat Yellow 3R | Vat Orange 11 | Novatic Yellow 3R | ||
| Dayvat Orange 3G | Vat Orange 15 | Orcovat Orange 3G Pst | ||
| Dayvat Golden Orange 3GF | Vat Orange 29 | Cibanon Orange 3GF | ||
| Dayvat Pink R | Vat Red 1 | Indanthrene Brill Pink R | ||
| Dayvat Red 3B | Vat Red 10 | Indanthrene Red FFB COLL | ||
| Dayvat Red 6B | Vat Red 13 | Domanthren Red 6B | ||
| Dayvat Bordeaux IRR | Vat Red 15 | Dycostliren Bordeaux 2R | ||
| Dayvat Violet 2R | Vat Violet 1 | Brilliant Purple 4R | ||
| Dayvat Brill.Violet RR Ultra Conc | Vat Violet 1 | 60010 | Brilliant Purple 4R | |
| Dayvat Brill.Violet 3 B | Vat Violet 9 | 60005 | Vat Brilliant Violet 3B | |
| Dayvat Magenta B Power | Vat Violet 13 | 73395 | Sandothrene Violet NBN | |
| Dayvat Blue RS | Vat Blue 4 | Indigosol Blue IRS | ||
| Dayvat Blue GF | Vat Blue 6 | Sandothrene Liquid Blue NGR | ||
| Dayvat Blue BC | Vat Blue 6 | 69825 | Sandothrene Liquid Blue NGR | |
| Dayvat Navy Blue BR | Vat Blue 18 | 59815 | Orcovat Navy Blue BR | |
| Dayvat Dark Blue BOA | Vat Blue 20 | 59800 | Orcovat Dark Blue BO | |
| Dayvat Green FFB | Vat Green 1 | 59825 | Jade Green FFB | |
| Dayvat Brilliant Green BG 200% | Vat Green 1 | Navinon Jade Green 2G Paste | ||
| Dayvat Jade Green FFB Micro Fine | Vat Green 1 | 59825 | Navinon Jade Green 2G Paste | |
| Dayvat Jade Green B Ultra Conc | Vat Green 1 | 59825 | Navinon Jade Green 2G Paste | |
| Dayvat Jade Green 2G Highly Conc | Vat Green 2 | 59830 | Navinon Jade Green 2G Paste | |
| Vat Green 2 | 59830 | Navinon Jade Green 2G Paste | ||
| Dayvat Brilliant Green 2G | Vat Green 2 | Navinon Jade Green 2G Paste | ||
| Dayvat Olive Green B | Vat Green 3 | 69500 | Intravat Olive 2B Double Paste | |
| Dayvat Olive B | Vat Green 3 | Intravat Olive 2B Double Paste | ||
| DAYVAT BLACK BB | Vat Green 9 | 59850 | Novatic Black NB | |
| Dayvat Olive 2G | Vat Green 29 | |||
| Dayvat Direct Black SN | VAT BLACK 16 | 59855 | Navinon Navy Blue G | |
| Dayvat Grey 2 G | VAT BLACK 22 | |||
| Dayvat Olive T | Vat Black 25 | 69525 | Sandothrene Liquid Olive NT | |
| Dayvat Olive R | Vat Black 27 | 69005 | Novatic Olive R | |
| Dayvat Direct Black APB | Vat Black 38 | Xuzhou Vat Black 38 | ||
| Dayvat Black B | Vat Black 65 | Cibanone Black B | ||
| Dayvat Black 2BA | ||||
| Dayvat Brown BR | Vat Brown 1 | Orcovat Brown BR Pst | ||
| Dayvat Brown GR | Vat Brown 3 | Orcovat Brown R | ||
| Dayvat Brown 2BR | Vat Brown 33 | Cibanon Brown 2BR | ||
| Dayvat Brown RRD | Vat Brown 57 | Intravat Brown HRR |
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