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  2. Olefin fiber - Wikipedia

    en.wikipedia.org/wiki/Olefin_fiber

    Olefin fiber is a synthetic fiber made from a polyolefin, such as polypropylene or polyethylene.It is used in wallpaper, carpeting, [1] ropes, and vehicle interiors. Olefin's advantages are its strength, colorfastness and comfort, its resistance to staining, mildew, abrasion, and sunlight, and its good bulk and cover.

  3. Batch dyeing - Wikipedia

    en.wikipedia.org/wiki/Batch_dyeing

    Batch dyeing (exhaust dyeing) is a method of dyeing a textile material. The method involves the gradual transfer of dye from a dye bath to the textile material in the same piece of equipment. [ 1 ] The various methods of batch dyeing result from the type of machine used in the dyeing process.

  4. Dye penetrant inspection - Wikipedia

    en.wikipedia.org/wiki/Dye_penetrant_inspection

    Dye penetrant inspection (DP), also called liquid penetrate inspection (LPI) or penetrant testing (PT), is a widely applied and low-cost inspection method used to check surface-breaking defects in all non-porous materials (metals, plastics, or ceramics).

  5. Textile bleaching - Wikipedia

    en.wikipedia.org/wiki/Textile_bleaching

    The objective of bleaching is to remove the natural color for the following steps such as dyeing or printing or to achieve full white. [1] All raw textile materials, when they are in natural form, are known as 'greige' material. They have their natural color, odor and impurities that are not suited to clothing materials.

  6. 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.

  7. Natural dye - Wikipedia

    en.wikipedia.org/wiki/Natural_dye

    In natural dyeing, there are "fast" dye compounds (those that have the necessary molecular structure to form stable chemical bonds with mordants and fibres, and so provide good resistance to fading when washed, exposed to light, or subjected to normal rubbing/abrasion; these are found throughout the historic record), and there are "fugitive ...

  8. Perusahaan Perdagangan Indonesia - Wikipedia

    en.wikipedia.org/wiki/Perusahaan_Perdagangan...

    ' Indonesia Trading Company '), or PPI, is the only Indonesian state-owned trading house. Its business is in export, import and distribution. PPI was formed through the merger of three former so-called "Niaga" companies, state-owned trading companies PT Tjipta Niaga, PT Dharma Niaga and PT Pantja Niaga, on 31 March 2003.

  9. Resist dyeing - Wikipedia

    en.wikipedia.org/wiki/Resist_dyeing

    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.