Author:Bereck, A; Trollip, NGDate:Jun 1987An investigation has been performed, the results of which provide evidence for the preferential use of phosphorus based reducing agents in place of the traditionally used sulphur based reducing agents in the first stage of mordant bleaching ...Read more
Author:Hunter, LDate:Feb 1973The breaking strength and extension of a range of wool worsted hosiery and weaving yarns were related to the average linear density of the yarn segment and that of the yarn at the point of rupture.Read more
Author:Roberts, MBDate:Feb 1978In the chrome dying of wool by the afterchrome process, a saving of time has been achieved during the dyeing phase by commencing the dyeing at a higher temperature than normal and controlling exhaustion by means of a steady reduction in pH.Read more
Author:Maasdorp, APBDate:Nov 1983A simple diffusion equation has been successfully used to monitor the initial fast absorption of chromium by both dyed and undyed wool.Read more
Author:Becker, J; Swanepoel, OADate:Apr 1968The production of whites and pastel shades in wool is complicated by the fibers' natural cream to yellow ground color and their tendency to yellow during certain processing operations.Read more
Author:Thierron, WDate:Aug 1984The Mean Spindle Speed at Break (MSS) test was developed at SAWTRI for assessing the spinning potential of wool on worsted ring spinning machines.Read more
Author:Turpie, DWFDate:Feb 1978The length characteristics of wool tops which had been produced from thirty different wools from a range of breeds were measured on the Almeter and compared with results obtained by the single fibre length method.Read more
Author:Van Rensburg, NJJDate:Oct 1975The effect of autoclave setting of wool yarn on the rates of exhaustion of different types of wool dyes, namely the 1;1 metal complex, 1.2 metal complex, acid milling, acid levelling and reactive dyes, was investigated.Read more
Author:Du Plessis, M; Van Rensburg, NJJDate:Sep 1977Cotton fabric treated with aminoplast resins can be cured in an autoclave steamer, provided that the samples are sealed in aluminium foil or cooking bags.Read more
Author:Hunter, LDate:Jul 1973The effect of wetting wool worsted yarns prior to testing on the twist values obtained by the double untwist-twist and untwist-retwist on tested on an automatic twist tester has been investigated.Read more
Author:Hunter, LDate:Aug 1976The between-bale and between variations in micronaire, maturity ratio, 2,5 per cent span length, uniformity ratio and trash content have been determined for a wide range of cottons grown in South Africa.Read more
Author:Hunter, L; Gee, EDate:Dec 1976The between-bale and between lot variations in the bundle tenacity and bundle extension have been determined on a Stelometer for a wide range of cottons grown in South African.Read more
Author:Leigh, RADate:Mar 1976The response of three 55/45wool/cotton blend fabrics to bleaching with peroxide by conventional cold-pad-dwell and pad-steam methods under both acid and alkaline conditions has been examined, and compared with the performance of all wool and ...Read more
Author:Barkenhuysen, FA; Leigh, RADate:Aug 1977The bleaching of a 55/45 wool/cotton blended fabric with sodium chlorite and various reducing agents was investigated.Read more
Author:Van Rensburg, NJJDate:Aug 1972Cotton can be successfully bleached with emulsions of hydrogen peroxide in perchlorethylene by single step batch application.Read more
Author:Van Rensburg, NJJDate:Sep 1971Wool can be bleached successfully with hydrogen peroxide in the presence of an organic phosphate acid derivative.Read more
Author:Aldrich, VDate:May 1976Two cottons differing by 4.2 mm in their 2.5 % span lengths (30.9 and 26.7mm) and by 6.1 cN/tex in their zero gauge bundle tenacities were blended and the resultant yarn and fabric properties measured.Read more
Author:Hunter, L; Leeuwner, L; Smuts, SDate:Jun 1984The use of bulk resistance to compression of a randomized fibrous assembly, determined on a SAWTRI compressibility Tester,a as a measure of the crimp of staple synthetic fibres, has been investigated.Read more
Author:Kruger, PJDate:Apr 1969The formula sued for determining the percentage fibre breakage on the Noble comb was not suitable for rectilinear combing.Read more