Rib › Double-bed structures (cardigan, Milano, tubular)
Half and full cardigan (fisherman's rib)
A thick, soft, lofty rib. Half cardigan: the two faces look different; one face shows plump, wide knit columns. Full cardigan: both faces look the same, with very full, rounded rib columns (the classic fisherman's rib)[inference].
- Two beds
Machine types that can knit it
Demo swatch
Drawn for: Double-bed hand flat (V-bed)Approximate preview worked out from the bed chart, not a photo.
Steps
- Cast on full needle rib, all needles on both beds, half pitch.
- Half cardigan: row 1 front knit, back tuck; row 2 both beds knit. Repeat.
- Full cardigan: row 1 front tuck, back knit; row 2 front knit, back tuck. Repeat.
- Hang weights evenly; this fabric needs steady take-down [inference].
- Measure the gauge on a washed sample: the width changes a lot.
The full card
- What it looks like
- A thick, soft, lofty rib. Half cardigan: the two faces look different; one face shows plump, wide knit columns. Full cardigan: both faces look the same, with very full, rounded rib columns (the classic fisherman's rib)[inference].
- How it behaves
- Much wider and thicker than a plain 1×1 rib on the same needles, with less stretch. Full cardigan spreads the most[inference].
- How it works
- Both beds have all needles in work in full-needle (half-pitch) rib, and tuck stitches are added on one bed or both. Half cardigan: one row knits on the front and tucks on the back; the next row knits on both beds. Full cardigan: one row tucks on the front and knits on the back; the next row knits on the front and tucks on the back. The tucks add extra yarn into every other row, which makes the rib wide and thick.
- Machines
- Double bed: hand flats such as Dubied (tuck cams), single bed + ribber (ribber tuck levers), industrial V-beds. On a domestic ribber machine the ribber tucks in one direction for half cardigan [unverified]. Full cardigan needs the main bed to tuck on the opposite rows too (tuck setting with every needle selected) [unverified].
- Parameters
- Pitch: half pitch, all needles in work on both beds. Tension: the tuck rows take up more yarn; most knitters use a tension close to normal rib or slightly tighter [unverified]. Repeat: 2 rows.
- Steps
- 1) Cast on full needle rib, all needles on both beds, half pitch. 2) Half cardigan: row 1 front knit, back tuck; row 2 both beds knit. Repeat. 3) Full cardigan: row 1 front tuck, back knit; row 2 front knit, back tuck. Repeat. 4) Hang weights evenly; this fabric needs steady take-down [inference]. 5) Measure the gauge on a washed sample: the width changes a lot.
- Charting
- Stoll-style colour key. Half cardigan: a row of "loop front, tuck rear" (pink) alternating with a row of "all needle, double bed" (light blue). Full cardigan: "tuck front, loop rear" (brown) alternating with "loop front, tuck rear" (pink). On a bed chart: tuck cells on the tucking bed, knit cells on the other.
- Limits and common problems
- Too little take-down → tucks will not knit off and pile up [inference]. The fabric is much wider than rib, so a cardigan-stitch welt flares if it is not planned [inference]. Changing from cardigan to plain rib changes the width.
- Combines with
- milano-rib (other full-needle structures), vertical-rib, stripes-and-colour-relief (two-colour full cardigan shows a different colour on each face).
- Pieces and assembly
- Chunky jumpers, scarves, collars, blankets. Factory names in Chinese flat knitting: half cardigan 单元宝, full cardigan 双元宝 [unverified].
Written in our own words from machine manuals, knitting references and swatching. Knit a test swatch before a whole piece.