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Scouring agents are the cleaning agents that remove the impurities from the textiles during the scouring process. While these are now industrially-produced, scouring agents were once produced locally; lant or stale urine and lixivium , a solution of alkaline salts extracted from wood ashes , were among the earliest scouring agents.
Paint stripper or paint remover is a chemical product designed to remove paint, finishes, and coatings, while also cleaning the underlying surface. Chemical paint removers are advantageous because they act on any kind of geometry and they are cheap. They can however be slow acting. [1]
One takes great care to remove any surface defects in the metal, like pits, that could allow bacteria to grow. A #4 dairy or sanitary finish is produced by polishing with a 180–240 grit belt or wheel finish softened with 120–240 grit greaseless compound or a fine non woven abrasive belt or pad. #6 Finish. Also known as a fine satin finish.
Surface grinding is done on flat surfaces to produce a smooth finish.. It is a widely used abrasive machining process in which a spinning wheel covered in rough particles (grinding wheel) cuts chips of metallic or nonmetallic substance from a workpiece, making a face of it flat or smooth.
Textiles themselves are too fragile to survive across millennia; the tools used for spinning and weaving make up most of the prehistoric evidence for textile work. The earliest tool for spinning was the spindle, to which a whorl was eventually added. The weight of the whorl improved the thickness and twist of the spun thread.
Chemical finishes are chemicals that may alter the properties of the treated fabrics. [1] Finishes may vary from aesthetic to special purposes. [2] Examples of chemical finishes are: Fabric softeners impart soft hand feel to the treated fabrics. [3] Silk surfacing a surface finishing of cotton to obtain an appearance similar to silk. [8]
The steel is machinable although not free-machining. The vendor decides to mill the parts. The milling can achieve the specified roughness (for example, ≤ 3.2 μm) as long as the machinist uses premium-quality inserts in the end mill and replaces the inserts after every 20 parts (as opposed to cutting hundreds before changing the inserts).
A lace fabric is lightweight openwork fabric, patterned, either by machine or by hand, with open holes in the work. The holes can be formed via removal of threads or cloth from a previously woven fabric, but more often lace is built up from a single thread and the open spaces are created as part of the lace fabric. lamé
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