Handling of textile yarn

Yarn handling apparatus comprising a plurality of bobbin support rods with a yarn bobbin mounted upon each bobbin support rod, each yarn bobbin having an axial center line and yarn wound thereabout, enclosure means surrounding the plurality of bobbin support rods, means defining an air flowpath through the enclosure means for directing air flowing along said air flow path to impinge on the yarn of said bobbins, means for introducing humidity into said air flow path so that yarn being wound on said bobbins and being unwound therefrom is subjected to humidified air flow, said humidity introducing means including a sleeve member of fabric for providing a passageway for a portion of the air flow path, and water supply means supplying water to the fabric of the sleeve member to maintain the fabric in a moist condition despite evaporation therefrom into the air flowing along the air flow path, said bobbin support rods being mounted in pairs, said pairs of bobbin support rods being superimposed to form a number of side-by-side columns, said pair of bobbin support rods being arranged so that the axial center line of each bobbin of the pair of bobbins converges at a single yarn-receiving point, and so that a columnar space is formed between a bobbin of one pair of bobbins and a bobbin of an adjacent pair of bobbins, wherein the sleeve member is arranged as to at least partially occupy said columnar space, said sleeve member having apertures therein, each of said apertures being located at least substantially adjacent to an appropriate one of said bobbins, and air supply means for providing air under pressure to the interior of the sleeve member so that air is forced through the apertures therein to impinge upon the bobbins, wherein the sleeve member is substantially triangular in cross-section, having three conjoined walls, the conjoined region of two of the conjoined walls projects into and substantially occupies said columnar space.