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wadding

any fibrous or soft substance used as padding, stuffing, etc., esp sheets of carded cotton prepared for the purpose
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Wadding

 

a fluffy mass of fibers, loosely interwoven in various directions. According to the means of producing wadding, it is classified as natural—woolen, silken, down, cotton, linen, hempen, pine-needle, and asbestos; or artificial—cellulose, glass, metallic, slag, and basalt.

Natural wadding is divided according to use into apparel, furniture, technical (thermal-insulation, fireproof, and so on), packing, sheet bonded, and medical.

In the manufacture of wadding the raw material is pulled apart, separated, and cleansed of foreign matter. The fibrous mass obtained is formed into so-called laps on machines of an opener-scutcher unit; the formless mass of fibers constituting the lap is transformed into a product of definite thickness. In the production of medical wadding the raw material is subjected to boiling in alkali under pressure and is then processed with sodium hyposulfite. As a result, the fiber acquires its whiteness and its characteristic properties: the ability to rapidly become wet and absorb moisture. Medical wadding is divided into hygroscopic and compress types. Hygroscopic wadding is white, separates readily into layers, and is used to absorb fluid secretions (pus or ichor) in bandaging wounds over layers of gauze dressing. Compress wadding is used for heat insulation of wrapped or bandaged parts of the body (for example, with hot compresses) and also as a soft padding when applying immobilized casts (for example, plaster casts).

Artificial wadding is widely used in construction as a thermal- and sound-insulating material and in the chemical industry for filtration of liquids and gases. A special form of wadding is the so-called vatilin—that is, wadding sized on one or both sides with adhesive emulsion. Vatilin is a substitute for wadding in sewing apparel, lining material, and so on.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

wadding

[′wäd·iŋ]
(mineralogy)
wad
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
IMP was founded with the establishment of its first company, Ovattifico e Resinatura Valpadana--Valpadana Wadding Mill and Resinating Plant--(ORV), also located in Padova.
By 1942, faced with the fact that cotton had been classified as a strategic material because of the war, the idea of using a pad of cellulose wadding inside a pair of reusable rubber pants with an elasticated waist band was introduced to the Swedish market [ILLUSTRATION FOR FIGURE 2 OMITTED].
By 1950 this simple concept had been developed into a product based on a bleached cellulose wadding strip (the first absorbent core) with a knitted mesh cover (the first coverstock-see Figure 3), which could be inserted into pockets at either end of the rubber pant.
In the last several years, a lot of new nonwoven products have been introduced into the domestic market; these include nonwoven asphalt felts, composite geotextiles, microfiber air filtration nonwovens, stitchbonded nonwoven vertical curtains, high grade nylon fusible interlinings, silk flosslike spray bonded nonwoven waddings and needlepunched tiles with pitch backing.
They include thermal bonding in combination with spray bonding for the manufacture of silk floss-like waddings, hot air through bonding and melt blown technology.
Currently available from Bombi Meccanica, Florence, Italy, is a hot calender line for wadding felt ovens, ovens for recycled felt, spray bonding plants, perforated drums and other machinery.
Union Wadding Company, Pawtucket, RI, recently purchased a Temafa fiber opening system, which is designed to open complete bales of natural or synthetic fibers.