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The common dyeing process of cotton yarn with reactive dyes at package form is as follows: The raw yarn is wound on a spring tube to achieve a package suitable for dye penetration. These softened packages are loaded on a dyeing carrier's spindle one on another. The packages are pressed up to a desired height to achieve suitable density of packing.
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 ...
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 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.
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 yarn is processed by knitting or weaving, with color and patterns, which turns it into cloth. The machine used for weaving is the loom. For decoration, the process of coloring yarn or the finished material is dyeing. [1] For more information of the various steps, see textile manufacturing
Dyeing is the craft of imparting colors to textiles in loose fiber, yarn, cloth or garment form by treatment with a dye. Archaeologists have found evidence of textile dyeing with natural dyes dating back to the Neolithic period.
The yarns are then dyed. The bindings may then be altered to create a new pattern and the yarns dyed again with another colour. This process may be repeated multiple times to produce elaborate, multicolored patterns. When the dyeing is finished all the bindings are removed and the yarns are woven into cloth.
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