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The winch dyeing process involves the movement of fabric, while the dye liquor remains stationary. The dye bath is heated through the heating coils within the front compartment to a maximum temperature of 95-98 degrees Celsius. The winch dyeing process has a high specific liquor ratio of around 1:20 to 1:40.
During the dyeing process, the dye must become close and even with the material in order to produce a uniform color that is fast to moisture, heat, and light. [5] Due to their superior fastness properties and simple application, reactive dyes are currently the most common type of dye for cotton dyeing. [6] The CPB technique uses less water and ...
The process is comparatively faster, but the dye uniformity may not be as good as that of skein dyed yarn. In beam dyeing a perforated warp beam is used instead of the spools used in package dyeing. Space dyeing is used to produce yarns with multiple colors. In general, yarn dyeing provides adequate color absorption and penetration for most ...
Although almost all dyeing can be done in a vat, the term vat dye is used to describe a chemical class of dyes that are applied to cellulosic fibre (i.e., cotton) using a redox reaction as described below. Because of the use of caustic soda, and the very high pH of the dye bath in the dyeing process, wool cannot be dyed using vat dyestuffs.
Dyeing: the skeins are scoured again, and discoloration removed with a sulphur process. This weakens the silk. The skeins are now tinted or dyed. They are dried and rewound onto bobbins, spools and skeins. Looming, and the weaving process on power looms is the same as with cotton. Weaving. The organzine is now warped.
Yarn (cheese) Bundle: Sewing thread: ... Barfoot's series of coloured lithographs of 1840 depicting the cotton manufacturing process. Spinning the Web, ...
Package Dyeing: This is the most commonly used method. This is when yarn is already spun up in bulk and then lowered into a chamber filled with dye. When the yarn is done absorbing the dye, it is removed from the cylindrical chamber to dry. Skein Dyeing: This is the process of when yarn is laid loosely in skeins or hanks.
Dyeing Pigments for sale at a market in Goa, India Cotton being dyed manually in contemporary India Silk dye in pan on stove. Khotan. Dyeing is the application of dyes or pigments on textile materials such as fibers, yarns, and fabrics with the goal of achieving color with desired color fastness.