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Knitting technology
and seamlessly knitting a complete tubular garment on a V-bed rib machine. A new
feature of this technique is the ability to knit tubular
rib with a high wale density
and therefore improved extensibility and appearance.
WholeGarment knitting
removes or reduces the need for subsequent making-up
(and in some cases cutting) operations, consequently reducing the garment through-
put time and work in progress. It also provides the potential for introducing novel
styling features into knitwear garments.
The key concept of WholeGarment knitting is the facility to knit seamless body
and sleeve tubes
of virtually any type of plain, rib or purl construction, plus the
ability to increase or decrease the sizes of the tubes and to move or merge them
together as and when required during the garment knitting sequence.
The technique of knitting tubular courses of plain knit on a conventional V-bed
flat machine is well understood and is used in the production of complete gloves on
Shima Seiki
automatic glove knitting machines.
In Fig. 19.9a, the running thread notations show the production of tubular plain
in two traverses on a conventional V-bed flat machine. As
the yarn passes across to
the loops on the other needle bed, at each turn round of the cam-carriage a tubular
course is knitted in plain fabric with the face loops on the outside and the reverse
stitches on the inside of the tube. A number of tubular structures can be knitted at
the same time (Fig. 19.9b); these can form the start of sleeves and a body.
Using loop transfer and other techniques to introduce or remove needles
involved
in knitting, it is possible to increase or decrease the size of the fabric tube,
to move and merge it into other fabric tubes at a controlled rate, and to semi- or
fully-close the tube either at the start or the end of the knitting sequence (Fig. 19.9b).
In order to integrally knit tubular-shaped garments, however, it is necessary to
be able to knit tubular rib
courses as and when required, particularly for the garment
borders and the cuffs of sleeves.
The knitting of
tubular courses of rib
on a V-bed rib machine (Figures 19.10a and
b) requires a carefully arranged sequence, particularly if a commercially acceptable
wale density of rib is to be knitted. The problem
is that in each traverse, front and
back bed needles are required to knit the course of rib. The objective is for the front
bed needles to eventually receive a complete traverse course of rib (face and
reverse) loops and for the back bed to receive the return traverse course of rib loops.
The knitting of tubular rib on a conventional two needle bed flat machine does
not, however, produce a rib that is very acceptable as far as extensibility and appear-
ance is concerned because it is essentially knitted on only half the available needles
(Fig. 19.11d). A course of 1
¥
1 rib is first knitted using both needle beds (Fig. 19.11a)
and is then transferred off onto one single bed (Fig. 19.11b).
BACK
BED
FRONT
BED
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