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Materials that exhibit bleeding tendencies may lead to the staining of white or light-colored fabrics in contact with them while in a wet state. The phenomenon of color fading from a fabric or yarn upon immersion in water, solvent, or a comparable liquid medium, arises due to inadequate dyeing or the utilization of inferior quality dyes.
Leather painting differs from leather dyeing in that paint remains only on the surface while dyes are absorbed into the leather. Due to this difference, leather painting techniques are generally not used on items that can or must bend nor on items that receive friction, such as belts and wallets because under these conditions, the paint may crack or wear off.
Dyeing is commonly carried out with an anionic direct dye by completely immersing the fabric (or yarn) in an aqueous dye bath according to a prescribed procedure. For improved fastness to washing, rubbing and light, further dyeing methods can be used. These require more complex chemistry during processing, and are thus more expensive to apply.
Chemical resist dyeing is a modern textile printing method, commonly achieved using two different classes of fiber reactive dyes, one of which must be of the vinyl sulfone type. A chemical-resisting agent is combined with dye Type A, and printed using the screenprint method and allowed to dry. A second dye, Type B, is then printed overtop.
The dye colours the leather without producing the uniform surface of a topcoat paint or insoluble pigmented sealant, as on other leathers, and so retains the hide's natural surface. Hence, any visible variations on the surface of the undyed leather such as visible pores, scars, or other blemishes will remain visible. [ 1 ]
Leather dyes, for leather; Fluorescent brighteners, for textile fibres and paper; Solvent dyes, for wood staining and producing colored lacquers, solvent inks, coloring oils, waxes. Contrast dyes, injected for magnetic resonance imaging, are essentially the same as clothing dye except they are coupled to an agent that has strong paramagnetic ...
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These dyes produce brilliant colors that work well with animal fibers, especially silk. Because of poor colorfastness, aniline dyes are seldom used with textiles today. [7] archil Archil is a dye produced from the lichen Roccella tinctoria which also produces cudbear and litmus. [8
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