Cotton yarn

That spring, Perkin mailed a precious sample of his purple to a Scottish dye firm. After exposing the sample to sunlight, the company s owner, Robert Pullar, wrote back that Perkin s mauve had kept its color better than any other lilac on the market. If your discovery does not make the goods too expensive, it is decidedly one of the most valuable that has come out for a very long time. This colour is one which has been very much wanted in all classes of goods, and could not be obtained fast on silks, and only at great expense on cotton yarns. ... 

Addition of acrylamide to starch improved the performance of cotton yarn more than acrylamide alone, but addition of poly(vinyl alcohol) to starch lowered the performance of the yarn compared with poly(vinyl alcohol) alone. Overall, taking into account economic considerations, stringent pollution requirements and the needs of desizing, the singlecomponent hydroxyethyl starch showed optimum acceptability for weaving performance at moderate relative humidity. 

Dyeing cotton yarn with selected direct dyes and simultaneous bleaching with peroxide. It is claimed that the peroxide also increases the colour yield [324]... 

Table 12.35 Continuous dyeing of cotton yarn with indigo using sodium dithionite or hydroxyacetone [212]...

Table 12.37 Redox recipes used in indirect electrolysis application of indigo to cotton yarn [241]...

Airjet spinning, cotton yarn, <5 17 Airjet textured yarn process, 20 19 Airjet texturing, 19 753 Air-knife chemical finishing, 17 513 Air knife coating, 7 10-11 method summarized, 7 5t Air-laid processes, 11 179-180 Air legislation (EU), 23 121 Airless atomization, in spray coating, 7 69-70... 

Opened fullerenes, 12 232 Open-end spinning, cotton yarn, 8 17 Open-head drums, 18 8 Open-hearth furnace, 12 320 21 408 Open-hearth steelmaking process, 16 150-151... 

Rotor bodies, in steam turbines, 23 231 Rotor electrostatic separators, 16 643-644 Rotor rotating converter, 16 151 Rotors, molecular, 17 59-61 Rotor spinning cotton yarn, 3 17 Rotor-stator devices, 10 127 Rotor-stator disperser, 3 701 Rotor-stator mills, 13 65 Rotor-stator mixers, 16 674-675 Rotosil process, 22 412 Roughages, as ruminant feeds, 10 863 Roughing, in mineral separation, 16 604 Roughing services, magnetic drums used in, 15 446... 

McKelvey etal. (1959) investigated the reaction of epoxides with cellulose in alkaline conditions, reporting that alkaline cellulose reacted readily once the concentration of sodium hydroxide was sufficiently high. However, no evidence was found of reaction between cotton yarn and cellulose with a range of epoxides under a variety of reaction conditions. It was concluded that the apparent reactivity of cellulose with epoxides was primarily due to alkaline swelling of the cellulose, self-polymerization of the epoxide monomers then occurring within the interior structure of the fibres. It was also noted that the reactivity with phenol OH groups was very low (e.g. only 1 % conversion of ethylene oxide with various phenols). 

GNB remain on the lint (97.2% of raw cotton weight), simple calculations show that only about 56% of the total GNB content in raw cotton is localized on the gross trash. Removal of all gross trash from raw cotton will still leave about 44% of the GNB on the lint or on the fine particulate associated with the lint. Thus, extensive cleaning of these raw cottons either in the gin or in the preparative steps of cotton yarn production might not significantly lower the content of entrained GNB. 

QuicKMATCH A fuse cousistiug of gunpowder coated onto cotton yarn using an adhesive such as gum arabic. 

CA 53,7598(1959) [Flexible detong fuses, constg of a core(2.85g) of PETN or RDX 0.15g of Na carboxymethylcellulose or Na alginate per ft of fuse, are enclosed in a paper tube and wound with jute cotton yarn. A coating of wax or bitumen at 100° a waterproof coating of polyethylene are then/applied 249)H.P. Jenkins s/c.H.Shomate,USP 2865726(1958) ... 

A. Abel s Process. In this process, cotton waste was used, instead of the skeins of cotton yarn employed by von Lenk. Batches of 1.25 lbs were dipped into 220 lbs. of mixed nitric-sulfuric acid contained in cast-iron dipping pans which were supported in an iron tank thru which cold w circulated to keep the temp below 70°F. The pans were provided, at the back, with gratings, on which to press out part of the acid from the charge. After remaining in the acid bath for 5... 

Dyeing Test.—The two colouring matters are then used to dye equal quantities of wool, silk or cotton yarn or fabric, according to the uses for which the colouring matter is intended, the colours obtained being compared. 

United Kingdom study (12) Cotton yarn, Direct 200 s-h SO... 

Effect of Grafting Acrylonitrile to Cotton Yarn Under Various Conditions on the Mechanical Properties. (Taken from Blouin etal.) Ref. 29. 

Table II. Test of Cotton Yarn Treated with Sizing Agents (Yarn 33 mg/m)...

Demeny, L., Degradation of Cotton Yarns by Light from Fluorescent... 

U. S. 2,706,690 Coating cotton yarn (alkyl ether) Commonwealth... 

Cotton yarns sizing 100% Cotton yarns sizing 100% Cotton yarns sizing... 

Wet winding lubricant for polyester/cotton and 100% cotton yarns. Provides very low friction. 

---