Term of knitting
makes the fabric more
compact and offers better dimensional stability and shape retention Sometimes
it also improves the bulk of the fabric (cardıgan is an example), 1e thickness
of the fabric Meneses Tuck stitch structure is generally less extensible and
porous in nature The tuck stitch can also be used for one or more of the
followings:
Patterning and fancy effects
by using colored yams Making heavier fabric Introducing special type of yam
(flexible, thick, etc.) Reducing laddering tendency in sıngle knit structures
Marking the panels of garments for sıze or the cutting lines of armhole, neck,
etc Floating and float loop (or missing and miss loop):
If during rising, needle
reaches to such a height that neither the old loop is cleared nor the needle
hook Can catch new yarn during downward movement, then the old loop Is not
cast-off but retained in the hook as well as no new loop is formed.
This situation is called
floating The yarn passes under the noodle and remains straight between the
neighboring loops The straight yarn connecting two nearest loops knitted from
is called float or miss loop.
The missed yarn floats
freely on the reverse side of the held loop which is the technical back of the
single jersey structures but is the middle of the rib and interlock structures
The held loop is extended in wale dırection until a knitted loop is formed
Structures incorporating float stitches tend to exhibit faint horizontal lines,
they are narrower because the wales are drawn closer together
Float stitches also reduce
the widthwise plasticity and improves the dimensional stability Continuous
float for a maximum of SIx adjacent needles is generally practiced Float stitch
provides a convenient way of hiding colored yarns at the back of the fabric
when they do not knit at the face Combination of knitted and short float
produces a fabric that does not ravel from the edge and for this reason they
are used in welts of stockings
Fabrics made with float stitches are as follows: Thinner and lighter than tuck stitched or normally knitted one Narrower and less extensible Flimsy or less rigid
Fabrics made with float stitches are as follows: Thinner and lighter than tuck stitched or normally knitted one Narrower and less extensible Flimsy or less rigid
The Course
A course is a horizontal row
of loops produced by all the adjacent needles during the same knitting level It
is equivalent to a pick or weft yarn in a woven fabric It is expressed as
courses per inch (epi) or courses per centimeter (c p.cm) Fabric is produced by makıng courses in consecutive order
Number of loops in a course is equal to the number of needles in operation
9.3.3
The wale
A wale is a vertical column
of loops made by the same needle in successive knitting levels. It s equivalent
to warp end in a woven fabric. It is expressed as wales per inch (wpi) or wales
per centimeter (wp cm ) The total number of wales in a fabric is obtained from
the total number of needles in operation
LOOP LENGTH AND COURSE LENGTH
Length of yarn contained in
a loop is called loop length or stitch length Course length is the length of yarn required in the production of a course Course length is obtained by multiplying
the stitch length with the number of noodles involved in the production of the
course It can be measured at a yam food during knitting or by unloving the yam
from the knitted fabric
A PATTERN
Row autumn row is a horizontal a row of needle loops produced by adjacent needles
KNITTING DENSITY
density Is the total number
of loops in a unit area such as a square inch or a square centimeter e obtained
by multiplying the number of courses and wales per inch or centimeter teether
Cop wales per inch and stitch density are the most important parameters of a
knitted fane and ae set before and calculated later very accurately for
determinıng the quality of the knitted Gibbs
THE NEEDLE
The hooked metal needle is
the principal knitting element of the knitting machine Pnor to yam feeding the needle is raised to clear the old loop from the hook and to receive the new the loop above it on the needle stum The new loop is then enclosed in the needle
hook as the needle starts to descend
The hook then draws the new
loop down through the old loop as the latter slides over the outside of the
descending bridge of the closed hook All needles must, therefore, have some
method of closing the needle hook to retain the new loop and exclude the old
loop
FABRIC DRAW-OFF
The fabric loops are always
drawn from the needles on the side remote from their hooks When two cis of
needles arc employed, either arranged vertically back-to-back or at some other
angle to each other, each set of hooks will face away from the other set and
the fabric will be produced and drawn away in the gap between the two sets.
TECHNICALLY UPRIGHT
Knitted fabric is
technically upright when its courses run horizontally and its wales run
vertically, with the heads of the needle loops facing towards the top of the
fabric and the course knitted first situated at the bottom of the fabric
