Scouring (textiles): Difference between revisions
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=== Discontinuous scouring === |
=== Discontinuous scouring === |
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In discontinuous method certain machines are used such as dyeing vessels, winches, jiggers and Kier.<ref name=":0" />{{Rp|19, 20}}<ref name=":1" />{{Rp|51}}<ref name=":2" /> |
In discontinuous method certain machines are used such as dyeing vessels, winches, jiggers and Kier.<ref name=":0" />{{Rp|19, 20}}<ref name=":1" />{{Rp|51}}<ref name=":2" /> |
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==== Kier boiling ==== |
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Kier boiling and <nowiki>''Boiling off''</nowiki> are the scouring process that involves boiling of the materials with caustic solution in the Kier.<ref>{{Cite book|last=Purushothama|first=B.|url=https://books.google.com/books?id=DWmoDwAAQBAJ&newbks=0&printsec=frontcover&pg=PA27&dq=kier+boiling+process&hl=en|title=Handbook of Value Addition Processes for Fabrics|date=2019-01-31|publisher=Woodhead Publishing India PVT. Limited|isbn=978-93-85059-92-6|pages=27|language=en}}</ref><ref>{{Cite book|last=Marsh|first=John Thompson|url=https://books.google.com/books?id=Kbg3AAAAMAAJ&newbks=0&printsec=frontcover&dq=kier+boiling+process&q=kier+boiling+process&hl=en|title=An Introduction to the Chemistry of Cellulose|last2=Wood|first2=Frederick Charles|date=1945|publisher=Chapman & Hall|pages=26|language=en}}</ref><ref>{{Cite book|last=Lacasse|first=K.|url=https://books.google.com/books?id=7RH2CAAAQBAJ&newbks=0&printsec=frontcover&pg=PA95&dq=kier+boiling+process&hl=en|title=Textile Chemicals: Environmental Data and Facts|last2=Baumann|first2=Werner|date=2012-12-06|publisher=Springer Science & Business Media|isbn=978-3-642-18898-5|pages=95|language=en}}</ref> |
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== Cotton scouring == |
== Cotton scouring == |
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Revision as of 02:52, 28 July 2021
Scouring is a preparatory treatment in textile wet processing. It removes the natural, added and adventitious impurities from the textile substrate that makes them ready for subsequent processes such as bleaching and dyeing. Scouring in textiles is a process of cleaning the undesirable matters and makes the treated fabric absorbent. It is sometimes followed by a bleaching process in case of lighter shades and to achieve full white material.[1][2]
Fatty substances and waxy matters are the major barriers in hydrophilicity of the natural fibers such as cotton and wool which are converted into soluble salts with the help of alkali.[3]
Saponification
The conversion of fat or oil into soap and alcohol by the action of heat in the presence of aqueous alkali. The treatment is called Saponification.
Methods
Continuous scouring
A continuous method takes place in an arrangement of J box.[1]: 19 [2]
Discontinuous scouring
In discontinuous method certain machines are used such as dyeing vessels, winches, jiggers and Kier.[1]: 19, 20 [3]: 51 [2]
Kier boiling
Kier boiling and ''Boiling off'' are the scouring process that involves boiling of the materials with caustic solution in the Kier.[4][5][6]
Cotton scouring
Cotton scouring refers to the scouring process for cotton to remove its impurities such as natural wax, pectins,[3]: 25 [2]
Wool scouring
The removal of lanolin, vegetable materials and other wool contaminants before use is an example of wool scouring.[7][8]
See also
References
- ^ a b c Faculty Of Engineering. p. 18.
- ^ a b c d Horrocks, A. Richard; Anand, Subhash C. (2015-12-01). Handbook of Technical Textiles: Technical Textile Processes. Woodhead Publishing. p. 191. ISBN 978-1-78242-481-9.
- ^ a b c Steven, A. B. (1947). Textile Bleaching. Isaac Pitman and Sons, London. p. 16.
- ^ Purushothama, B. (2019-01-31). Handbook of Value Addition Processes for Fabrics. Woodhead Publishing India PVT. Limited. p. 27. ISBN 978-93-85059-92-6.
- ^ Marsh, John Thompson; Wood, Frederick Charles (1945). An Introduction to the Chemistry of Cellulose. Chapman & Hall. p. 26.
- ^ Lacasse, K.; Baumann, Werner (2012-12-06). Textile Chemicals: Environmental Data and Facts. Springer Science & Business Media. p. 95. ISBN 978-3-642-18898-5.
- ^ Schools, International Correspondence (1905). Wool, Wool Scouring, Wool Drying, Burr Picking, Carbonizing, Wool Mixing, Wool Oiling: Woolen Carding, Woolen Spinning, Woolen and Worsted Warp Preparation. International Textbook Company. p. 13.
- ^ Company, International Textbook; Schools, International Correspondence (2014). Wool, Wool Scouring, Wool Drying, Burr Picking, Carbonizing, Wool Mixing, Wool Oiling: Woolen Carding, Woolen Spinning, Woolen and Worsted Warp Prepar. Creative Media Partners, LLC. ISBN 978-1-293-67965-4.
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