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Vat dyes are a class of dyes that are classified as such because of the method by which they are applied. Vat dyeing is a process that refers to dyeing that takes place in a bucket or vat. The original vat dye is indigo , once obtained only from plants but now often produced synthetically.
Vat blue 36 73675 indigoid 6424-69-7: Vat brown 1: Vat brown 1 70802 anthraquinone 2475-33-4: Vat Green 1: Jade green base Vat green 1 59825 anthraquinone 128-58-5: Vat Green 9: Vat black BB Vat green 9 59850 anthraquinone 6369-65-9: Vat Orange 1: Vat golden yellow RK Vat orange 1 59105 anthraquinone 1324-11-4: Vat Yellow 1: Flavanthrone ...
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Mordant red 19 is a typical mordant dye. Like many mordant dyes, it features the azo group (RN=NR) and various sites for chelating to metal cations. A French Indienne, a printed or painted textile in the manner of Indian productions, which used mordants to fix the dyes. A mordant or dye fixative is a substance used to set (i.e., bind) dyes on
However, vat dyes, and especially indigo, must be treated after dyeing by 'soaping' to prevent the dye from rubbing (crocking) off. [5] Vat dyes can be used to simultaneously dye the fabric and to remove underlying fiber-reactive dye (i.e., can dye a black cotton fabric yellow) because of the bleaching action of the reducing bath. The extra ...
Vat 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. This form is often colorless, in which case it is referred to as a Leuco dye , and has an affinity for the textile fibre.
While we've already taken a look at the new Crafting Workshop in FarmVille 2, which gives you another use for your many raw materials like wool and crops, we've yet to take a look at the actual ...
aal Aal or Indian mulberry (Morinda tinctoria) is the source of the morindone dye sold under the trade name "Suranji". It is extensively cultivated in India for the dyeing of cotton, silk and wool in shades of red, chocolate or purple, dependent on the mordant used.