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Browsing Archives collection by Author "Aldrich, De V"
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Item The carding and combing of wools of different fibre lengths(1970-06) Kruger, PJ; Turpie, DWF; Aldrich, De VItem The cleanliness of rectilinear combed tops. Part 1: The influence of gauge setting and gill feed(1972-11) Aldrich, De V; Kruger, PJThe influence of gauge setting and gill-feed on the efficiency with which the rectilinear comb removes impurities was investigated.Item The cleanliness of rectilinear combed tops. Part 2: The influence of the top comb and comb cylinder(1972-12) Aldrich, De V; Kruger, PJThe influence of the gap between pins, percentage void, pin and pin thickness on the combing performance of comb was investigated.Item The cleanliness of rectilinear combed tops. Part III: The influence of a double top comb and a burr beater(1972-12) Aldrich, De V; Kruger, PJThe combing performance of a double top comb was compared with that of a single top comb.Item The combing performance of different types of comb cylinders for rectilinear combs(1971-02) Aldrich, De VThe combing performance of three types of comb cylinders were investigated, and compared on the basis of top cleanliness, mean fibre length of the top and fibre breakage.Item A comparison of the processing performance of a hand picked and machine picked South African cotton cultivar(1975-03) Aldrich, De VThe lint produced from both hand picked and machine picked Deltapine 826 cotton was evaluated for processing efficiency, and yarn and fabric properties.Item A review of the relationship between cotton fibre properties, yarn properties and spinning performance(1973-10) Aldrich, De VTechnological advances on textile processing machinery have resulted in increases in production rates to levels which have not even been contemplated 30 years ago.Item Some spinning and weaving trials on existing and new South African cotton cultivars(1976-06) Aldrich, De VEleven lots of cotton comprising several cultivars from two areas (Upington and Groblersdal) were submitted for fibre analyses and spinning trials.Item Some tensile properties of worsted yarns from wool blended with either polymide, polyester or acrylic fibres(1973-05) Aldrich, De V; Grobler, ASome mechanical properties of wool, wool/polyester and wool/acrylic intimately blended yarns were investigated.Item A study of the physical properties of some commercial South African cotton blends and resultant carded yarns(1975-01) Aldrich, De VA survey was carried out the characteristics of 24 cotton blends used and 102 carded yarns spun from these blends by 13 South African mills.