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In physical chemistry and engineering, passivation is coating a material so that it becomes "passive", that is, less readily affected or corroded by the environment. . Passivation involves creation of an outer layer of shield material that is applied as a microcoating, created by chemical reaction with the base material, or allowed to build by spontaneous oxidation
Women washing clothes. Scouring is a preparatory treatment of certain textile materials. Scouring removes soluble and insoluble impurities found in textiles as natural, added and adventitious impurities: for example, oils, waxes, fats, vegetable matter, as well as dirt.
Snags of this type (#3) may sometimes be repaired or minimized by firmly pressing with opposed finger and thumb at each end of the pulled thread (to prevent it from pulling further from each side), and gently pulling apart the bunched fabric, allowing the bunched fibers at the site of the snag to be drawn back in. Holding one end this way with ...
Bluing, sometimes spelled as blueing, is a passivation process in which steel is partially protected against rust using a black oxide coating. It is named after the blue-black appearance of the resulting protective finish.
Electropolishing, also known as electrochemical polishing, anodic polishing, or electrolytic polishing (especially in the metallography field), is an electrochemical process that removes material from a metallic workpiece, reducing the surface roughness by levelling micro-peaks and valleys, improving the surface finish.
In textile manufacturing, finishing refers to the processes that convert the woven or knitted cloth into a usable material and more specifically to any process performed after dyeing the yarn or fabric to improve the look, performance, or "hand" (feel) of the finish textile or clothing. [1] [2] The precise meaning depends on context. Fabric ...
Let it sit for a couple of minutes before starting to remove the gum. Both of the above might work, but perhaps an easier solution is to use olive oil. Pour some into a small cup or bowl, dip in ...
Lint is the common name for visible accumulations of textile fibers, hair and other materials, usually found on and around clothing.Certain materials used in the manufacture of clothing, such as cotton, linen, and wool, contain numerous, very short fibers bundled together. [1]