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  2. Acid dye - Wikipedia

    en.wikipedia.org/wiki/Acid_dye

    An acid dye is a dye that is typically applied to a textile at low pH. They are mainly used to dye wool, not cotton fabrics. [1] Some acid dyes are used as food colorants, [2] [3] and some can also be used to stain organelles in the medical field. Acid dyes are anionic, soluble in water and are essentially applied from acidic bath.

  3. Dye - Wikipedia

    en.wikipedia.org/wiki/Dye

    Usually acetic acid is added to the dye bath to help the uptake of the dye onto the fiber. Basic dyes are also used in the coloration of paper. Direct or substantive dyeing is normally carried out in a neutral or slightly alkaline dye bath, at or near boiling point, with the addition of either sodium chloride (NaCl) or sodium sulfate (Na 2 SO 4 ...

  4. Wet process engineering - Wikipedia

    en.wikipedia.org/wiki/Wet_process_engineering

    Acid dyes are water-soluble anionic dyes that are applied to fibers such as silk, wool, nylon, and modified acrylic fibers using neutral to acid dye baths. Attachment to the fiber is attributed, at least partly, to salt formation between anionic groups in the dyes and cationic groups in the fiber. Acid dyes are not substantive to cellulosic fibers.

  5. Dye-transfer process - Wikipedia

    en.wikipedia.org/wiki/Dye-transfer_process

    It was then placed into a plastic developing dish and one litre of 3% acetic acid. The dish was vigorously rocked back and forth and right to left from side to side to wash off the dye on the surface of the matrix. The matrix was lifted clear of the solution once so as to allow the acetic acid solution to reach the back of the matrix film.

  6. Cold pad batch - Wikipedia

    en.wikipedia.org/wiki/Cold_pad_batch

    The fabric passes over rollers, immerses into a dye bath, and then proceeds through rollers that remove excess dye, allowing it to return to the dye container. [8] The difference between piece-dyeing in a vat and using a pad-dyeing machine is that in the latter, the fabric is continuously moved through one or more dye baths, rather than being ...

  7. Vat dye - Wikipedia

    en.wikipedia.org/wiki/Vat_dye

    These dyes, which are chemically similar to vat dyes, are developed by light instead of being applied in an oxygen-free bath and being developed in the fabric by exposure to oxygen. Inkodyes are true dyes, not fabric paints. A dye itself attaches to the fabric; fabric paint includes a glue-like binder, which imparts a stiffer feeling to the fabric.

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  9. Mordant - Wikipedia

    en.wikipedia.org/wiki/Mordant

    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

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