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Browsing by Author "Turpie, DWF"

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An attempt to quantify the effect of staple crimp on the measurements of the length characteristics of wool tops on the almeter

Author: Turpie, DWF Date: Feb 1978 The 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
The carding and combing of wools of different fibre lengths

Author: Kruger, PJ ; Turpie, DWF ; Aldrich, De V Date: Jun 1970 Read more
A comparison of fibre, yarn and fabric properties of an imported 64's merino, a South African 64's merino and a 50/50 blend

Author: Robinson, GA ; Turpie, DWF Date: Oct 1978 The performance and physical properties of fibre, yarn and fabric produced from a 64's quality imported merino wool, a Cape merino 64's wool and a 50/50 blend of these has been investigated. Read more
Comparison of the carding performance of fillet and metallic clothing

Author: Turpie, DWF ; Geldard, A ; Kruger, PJ Date: Nov 1971 The single swift metallic card gave results which favored its use in preference to the double swift fillet or double swift metallic cads for a long wool of 64's quality which was free to nearly free of vegetable matter. Read more
Continuous dyeing using radio frequency energy. Part 1: Preliminary trials on wool

Author: Barkenhuysen, FA ; Van Rensburg, NJJ ; Turpie, DWF Date: Jun 1981 The continuous dyeing of wool tops using a Fastran radio frequency (RF) dyeing machine was investigated. Read more
Correlation of certain properties of raw wool with the detergent requirements during scouring

Author: Gee, E ; Turpie, DWF Date: Jan 1978 An attempt to correlate certain properties of raw wool with the detergent requirements during scouring was made during a study involving a wide range of South African fleece wools. Read more
The correlations between different measures of weak places in worsted yarns and weaving performance

Author: Hunter, L ; Cizek, J ; Turpie, DWF Date: 1987 An analysis has been undertaken of the inter-correlation between various measures of weak places in yarns and their role in determining weavability. Read more
Further studies involving the SAWTRI length/strength tester

Author: Cizek, J ; Turpie, DWF Date: Nov 1985 A number of profiles of raw wool staples are illustrated, and also the profile of raw mohair staple. It is shown that testing of the strength of raw wool stapled at a short gauge, in addition to the maxim practical gauge, (namely where the ... Read more
An improved method for the rapid determination of non-ionic detergent in the cream, effluent and sludge from wool scouring liquors and in recovered wool grease

Author: Turpie, DWF ; Van der Walt, LT Date: Jul 1977 An improved method for the rapid determination of non-ionic detergent in the cream, effluent and sludge from wool scouring liquors in recovered wool grease was established using dichloromethane as an extraction liquor. Read more
Inter-port differences in processing performance of similar wools. Part 2: The processing performance of a 10/12 months 60/64's during topmaking

Author: Turpie, DWF Date: Oct 1978 A comparison in the processing performance during topmaking of wools from the ports of Durban, Port Elizabeth and Cape Town was carried out on a 10/12 months 60/64's good topmaking wool, known as type 54. Read more
Inter-port differences in processing performance of similar wools. Part I: The processing performance of a 12 months 60/64s during topmaking

Author: Turpie, DWF Date: Mar 1978 A comparison in the processing performance during topmaking of a 12 months 60/64s good topmaking wool (type 49) from the ports of Durban, Port Elizabeth and Cape Town was made. Read more
Interport differences in processing performance of similar wools. Part III: Yarn and fabric properties of A 12 months 60/64's

Author: Robinson, GA ; Turpie, DWF Date: Oct 1979 Three matched lots of wools derived from various growing regions of South Africa and marketed in Durban, Port Elizabeth and Cape Town respectively have been processed, spun and when woven into identical fabrics. Read more
An introduction to the SAWTRI length/strength tester for raw wool staples

Author: Cizek, J ; Turpie, DWF Date: Mar 1985 A staple length/ strength measuring instrument has been developed for the routine automatic measurement of the cross-sectional profile and length of a wool staple, the position and cross sectional area of its thinnest place, its tenacity and ... Read more
A laboratory study of the interrelationship between wool scouring efficiency and the partition of detergent during subsequent centrifuging

Author: Mozes, TE ; Van Rensburg, NJJ ; Turpie, DWF Date: Dec 1981 A laboratory study of the use of twenty nonionic detergents for scouring of raw wool showed that scouring efficiency decreased with an increase in the detergent partition coefficient obtained by centrifuging of artificial creams prepared with ... Read more
Processing losses during topmaking. Part 2: The effect of certain fibre properties and the degree of fribbiness of the raw wool

Author: Gee, E ; Turpie, DWF ; Strydom, MA Date: 1981 Actual fibre losses sustained during pilot scale processing of 57 lots of short wools and out-sorts, as well as yields of top and noil, were measured. Read more
The processing of wool/cotton blends on the worsted system part 1 - An introductory investigation

Author: Turpie, DWF Date: Jun 1974 Hand-blended lots of scoured 6/7 months Spinners wool and mechanically opened Acala 442 cotton lint were successfully carded, gilled and combed on the worsted system. Read more
The processing of wool/cotton blends on the worsted system Part 1: An introductory investigation

Author: Turpie, DWF Date: Jun 1974 Hand-blended lots of scoured 6/7 months Spinners wool and mechanically opened Acala 442 cotton lint were successfully carded, gilled and combed on the worsted system. Read more
Rapid estimation of fibre length distributions in wool staples by means of information provided by the SAWTRI length/strength tester

Author: Turpie, DWF ; Cizek, J Date: Sep 1987 One of the unique features of the SAWTRI Length/Strength Tester for raw wool staples is that it provides automatic measurement of the staple profile in addition to data on staple length and strength. Read more
A rapid measure of spinning potential: Mean spindle speed at break

Author: Turpie, DWF Date: Feb 1975 The spindle speed of a 144 spindle ring frame was increased in steps at a given rate during the spinning of wool to relatively fine counts until all ends were down. Read more
SAWTRI Bulletin 1982 Vol 16 issue 4

Author: Turpie, DWF ; De Olivier, W ; Hunter, L ; Van Rensburg, JJ ; Strydom, MA Date: Dec 1982 A major building extension programme and the installation of new equipment were completed during the year. The extensions to the buildings have ·provided the Institute with much needed additional floor space for some of the existing departments ... Read more

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