12 (#40) ############################################## WOOLLEN AND WORSTED SPINNING are given, from which, by careful comparison, the requirements of the two series of processes and the value of the foregoing materials to the woollen manufacturer may be realized. * * * (C Blending.-As preparatory to blending it is desir- able to bear in mind the divisions of the woollen in- dustry based upon carding, for the “ blender” must always have his "sets of carding machines ” in view. Four main divisions of carding are observable in the woollen industry, viz. : Cheviot, Saxony, Re-manufactured (long and short fibres), and Union sets of machines. Although each of these types must be set or adjusted for each particular blend passing through it, still there are marked structural and speeding differences which form the basis for this classification of cards. The blender must certainly know for which type of card he is preparing his blend, and even then must consider how the materials he proposes to blend will affect one another, as already instanced in the case of cotton. The term "blending " has two meanings in the woollen trade. It is firstly used as a verb to indicate the mechanical mixing of the fibres to be treated. In this aspect it is applied indiscriminately to fibre mixing, whether the “ blend,” as it is termed, consists of- (a) One quality of material in which the “ blend- ing consists of mixing such varieties in fibre length and diameter as there may be present, and also in ensuring that there is horough mixing with reference to root and tip of both staples and individual wool fibres. (6 3 12
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