This fabric is beginning to appear in runways again, is fairly easy to construct on any machine. Select two yarns of different weights and textures, the heavier being approximately two to three times the thickness of the thinner one. It is possible to use multiple strands of the thinner yarn to achieve the difference in weight. The “thicker” yarn is the one you will see on the “right” side of the fabric. Select a tension suitable for the thicker yarn, it will remain fixed throughout the piece. The knitting sequence can be varied. To begin with, test an equal number of rows of each color/ thickness i.e. 6 and 6. Adjust as needed for the desired effect. Rows of weaving or slip patterns can provide the “thicker” areas of knitting, with plain stocking stitch the “thin”. If Fair Isle patterning is preferred, elongate fair isle and knit pattern in alternating sequences, with single or double strand in the front feeder to produce the “thick” and the plain knit “thin” with yarn in the back feeder only. For more on this technique see the previous post
Instructions below are from the Brother Techniques book, which is now available for free download online
A different fabric can be produced double bed to achieve what may be, depending upon yarn selection and tension, a similar effect. Although these folds are called tucks (those who sew may be familiar with the term pintucks in that craft) they are actually knit using a slip stitch technique. Colors may be changed at regular intervals here as well, and when combined with use of the plating feeder the color effects can be varied even more. Depending on which side of the fabric is the “right” side, either the ribber bed (when the knit side is the right side) or the main bed (when the side facing you on the machine is the right side), one carriage is set to slip in both directions for the height of the folds while the other is set to knit. Once the desired number of rows is reached, both carriages are set to knit. To review:
1. begin with an every needle rib, at a tight tension, working at least one closed row
2. follow by setting either bed to slip, and knitting 4-10 number rows in stocking stitch on only one bed. The tension for those rows will have to be adjusted to the same used for stocking stitch for that yarn.
3. Return to every needle rib for at least one or 2 rows forming the backing and locking the knit together after reducing the tension. The “locking” stitches will be elongated.
Repeat steps 2 and 3.