The sinker bar now starts to move forward.Then total number of warp yarns in the fabric = 1728 × 2 = 3456In one rack, length of fabric produced = 480 / 48 = 10 inch = 254 mmBased on their experimental values and understanding on the subject, they developed a model for predicting the relationships between the compression behaviour and construction parameters of the WKSF and concluded that a lot of experiments should be undertaken to validate the model as well as future work should be focused on the computer simulation of the deformation of warp knitted spacer fabric by the finite element method. In the USA, Tricot consumes about 11% of spandex, Raschel 22%, weft knits 6–10%, woven 2%, and the remaining spandex is used in other types of fabrics. The beams are placed above the machine so that it is accessible at the front for fabric inspection and at the back for mechanical attention to the knitting elements. By lapping the pile yarn into two wales, any irregularity in the yarn is disguised.Fig. Because of this, lap notation of Raschel is written 2-0, 2-4 for the back bar Jersey stitch. As the pile is severed in the centre, its height is half the distance between the two trick-plates; this distance may be altered to give a range of pile heights between 2.5 and 30 mm.The sacks are knitted sideways at a rate of 250 courses per minute on each bed in a similar manner to the briefs. 29.5 Lapping diagram and notation of a seamless tube knitted on a double needle bar raschel. Basic raschel knits consist of one set of yarns that produce a "pillar stitch," which resembles a chain stitch, and other yarns that fill in the area between the pillars.
Milanese is made with two sets… Since the needles are heavier and bigger, Raschel machines can use spun yarn or heavier spandex yarn, whereas the Tricot machines with spring bearded needles need a presser bar, and since needles are smaller, knitting of spun yarn is more critical.Simplifying S = 20, So widthwise shrinkage of fabric is 20%.The fabric is drawn downwards from the needles, almost parallel to the needle bar, at an angle of 120–160 degrees, by a series of take-down rollers. The sequence involves a pattern-change device for counting the number of repeat lapping cycles in each section and for initiating a changeover of guide bar push-rod control from scanning links in one chain track on to those in another track, in order to alter the lapping repeat for a particular guide bar. In 24 gauge, 22/1 NeB combed cotton would be a suitable yarn count.Some raschel double needle bed products are in the form of articles, a number of which can be simultaneously knitted side-by-side across the needle bed. The guide bars are threaded, commencing with the middle bars and working outwards from either side of the rocker-shaft.