325 (#421) ############################################ DEFECTS IN RAW MATERIALS e due mm 1 5. Lack of whiteness and brightness. Certain wools are very liable to black hair and coloured fibre. Snow-white Cape wools cannot be matched by certain other wools inferior in colour. Among English wools Lonks are noticeable for whiteness. (6) The Machines Employed :- I. A clear, neat “flyer-spun yarn cannot usually be matched with a cap or ring-spun yarn. 2. A French-drawn roving cannot be satisfac- torily matched by an English-drawn roving. 3. Irregularly driven spinning frames will yield yarns irregularly drafted and twisted, and of abnormally irregular strength. 4. Defective rollers will produce defective yarns. 5. Unsatisfactory drive from tin-drum to spindles, or in the mule from rim shaft to tin-drum, will produce irregular twist. 6. Any regularly repeating defect--whether in thickness or twist, or in irregular mixing or in irregular dye-taking—will be more or less emphasized in the fabric according to the relationship between the length of the defect in the yarn and the width of the piece into which the yarn is woven. 7. Any irregularly repeating defect such as may vary in repeat according to the emptying or filling of a bobbin or cheese should be avoided. (c) The Workers :- 1. Inefficient mixing of colours due to lack of forethought on the part of either the manager or of the workers is fairly frequently mulje a lista I T2TE: mphyrcze 3. /2278 pard س : landet TANIN 站 ​325
86 87 Textile Machine
111 111 Textile Machine Part
113 113 Textile Machine Part
117 117 Textile Machine
119 120 Textile Machine Part
122 122 Textile Machine Part
102 102 Textile Machine Part
196 196 Textile Machine Part
198 198 Textile Machine Part