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  2. Wet process engineering - Wikipedia

    en.wikipedia.org/wiki/Wet_process_engineering

    Cross dyeing is "a method of dyeing blend or combination fabrics to two or more shades by the use of dyes with different affinities for the different fibers". [10] The cross dyeing process can be used to create heather effects, and plaid, check, or striped fabrics.

  3. Exposure sheet - Wikipedia

    en.wikipedia.org/wiki/Exposure_sheet

    Every eighth line down is marked thicker than the rest and shows half a foot of film. One second of animation would take three of these sections (hence every line represents 1/24th of a second). Sound breakdown was often done on separate sheets called bar sheets made by the editor, and given to the animator who would transpose them to his dope ...

  4. Batch dyeing - Wikipedia

    en.wikipedia.org/wiki/Batch_dyeing

    The fabric piece is then moved down from the wound roller, through the dye solution and back onto the other roll. The rollers can be reversed so that the process of unwinding and winding can be done multiple times until the dyeing process is complete. Once the process has finished the dye bath is cooled and the fabric is taken out and dried ...

  5. Flow process chart - Wikipedia

    en.wikipedia.org/wiki/Flow_process_chart

    It is used when observing a physical process, to record actions as they happen, and thus get an accurate description of the process. It is used when analyzing the steps in a process, to help identify and eliminate waste—thus, it is a tool for efficiency planning. It is used when the process is mostly sequential, containing few decisions.

  6. Dyeing - Wikipedia

    en.wikipedia.org/wiki/Dyeing

    The dope dyeing applies to synthetic fiber only. This method of dyeing is also known as solution dyeing [10] and 'mass coloration' or 'mass colored'. It has limited color options. [11] [12] Fiber dyeing: In fiber dyeing, the dyeing takes place at the fiber stage before they are spun into yarn. It is also called stock dyeing.

  7. Process flowsheeting - Wikipedia

    en.wikipedia.org/wiki/Process_flowsheeting

    Process flowsheeting is the use of computer aids to perform steady-state heat and mass balancing, sizing and costing calculations for a chemical process. It is an essential and core component of process design. The process design effort may be split into three basic steps Synthesis; Analysis and; Optimization.

  8. Industrial dye degradation - Wikipedia

    en.wikipedia.org/wiki/Industrial_Dye_Degradation

    Industrial dye degradation is any of a number of processed by which dyes are broken down, ideally into innocuous products. [1] Many dyes, specifically in the textile industry such as methylene blue or methyl red, are released into ecosystems through water waste. [ 2 ]

  9. Vat dye - Wikipedia

    en.wikipedia.org/wiki/Vat_dye

    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.

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