Flat Knitting - Chapter 7
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Transcript of Flat Knitting - Chapter 7
BASIC WEFT KNIT BASIC WEFT KNIT STRUCTURESSTRUCTURES
BASIC WEFT KNIT STRUCTURESBASIC WEFT KNIT STRUCTURES
Basic weft knit structure
Plain Single Jersey
Rib Interlock Purl
Double Jersey
Characteristics of Single Jersey
• Most simplest & most widely used
• “V” shaped loop appearance on technical face side & “semi-
circular” loops on technical back side
• Face side is smoother than back side
• The unrelaxed plain knit fabric will curl at the top and bottom
• Production rate is very high & cost is low (due to m/c simplicity
– capital cost is low)
Characteristics of Rib Fabric
• The rib fabric appearance shows “vertical cords”
• Can be symmetrical (1x1 rib, 2x2 rib etc.) or assymetrical
– Symmetrical have balanced structure i.e appearance is same on both sides of
the fabric
• Ribs are heavier & thicker than the single jersey with similar gauge
• Rib requires knitting machine with two beds and with two set of
needles
Characteristics of Rib Fabric
• The fabric does not curl at the edges due to its balance structure
• Mostly used for outwear. Structure is more opaque than jersey
and hence can be used for swimwear.
Characteristics of Interlock Fabric
• Interlock is the interlocking of two 1x1 rib
• The fabric looks like a plain knit jersey fabric from both the
sides
– Simple interlock is therefore reversible as the rib one
• The fabric is less extensible than either single jersey or rib (due
to interlocking structure)
• The structure do not curl at the edges
Characteristics of Interlock Fabric
• The structure is thicker, stronger and less elastic so cutting &
sewing are easier
• It unroves from the course knitted the last
• Productivity is less
• Fabric is costlier
Characteristics of Purl Fabric• It is reversible in appearance
• Thickness is theoretically double to plain jersey
• Like jersey knit, it can be unroved from either end
• Does not curl at edges
• More extensible in the lengthways
• Least Used
• Speed of m/c and production is much less compared to other
weft knit fabrics
REPRESENTATION OF REPRESENTATION OF KNIT STRUCTUREKNIT STRUCTURE
Knit Structure Representation
Diagrammatic representation Graphical Representation
Diagrammatical RepresentationDiagrammatical Representation
Diagrammatical RepresentationDiagrammatical Representation
Knit Stitch
Purl Stitch
Tuck Stitch
Miss Stitch
Graphical RepresentationGraphical Representation
Xo
Knit Stitch
Purl Stitch
Tuck Stitch
Miss Stitch