Feature and properties of two guide bar warp knit designs This structure is actually knitting two “half tricot” together with two bars moving in opposite direction. This is a balanced structure, the two set of warp yarns are doing their overlap in opposite direction. This result in perfect upright loops in the fabric surface.

1. Feature and properties of Two guide bar warp
knit designs
Presented by:
Md: Fahimuzzaman
Department of Textile Engineering
Mawlana Bhashani Science and Technology University
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2. Agenda
Factors that can affect the properties of warp
knit fabrics
Features of two guide bar warp knit design
Two bar tricot fabric
Locknit fabric
Satin fabric
Reverse locknit and sharkskin
Queen’s cord
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3. Factors affect warp knit fabric properties
Yarn type
Finishing
Fabric Structure
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4. Features of two guide bar warp knit design
 Good Dimensional stability, reasonable cover
 Better loop shape and ladder resistance
 Reasonable weight
 Better pattern scope
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5. Two bar tricot fabric
 This structure is actually knitting two “half
tricot” together with two bars moving in
opposite direction.
 This is a balanced structure, the two set of
warp yarns are doing their overlap in
opposite direction. This result in perfect
upright loops in the fabric surface.
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6. Locknit fabric
 Most two guide bar structures are not
balanced.
 Although all structures have their overlap and
underlaps in the opposite direction, but the
underlap displacements of the two bars are
different.
 The FGB makes a longer undrlap than BGB,
and the result is the fabric will give lower
sideway elasticity than tricot.
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7. Satin fabric
 Satin is a locknit base structure. It contains even
longer underlap in the FGB.
 The excessive length of underlap at the back of the
fabric will give very good light reflection when the
FGB yarns are flat acetate.
 E.g FGB= 3-4/1-0// and BGB=1-0/1-2//
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8. Reverse locknit and sharkskin
 They are very similar to locknit. The only difference is the swapping
of the chain notations between FGB and BGB.
- Reverse locknit: FGB=1-0/1-2; BGB=2- 3/1-0
- Sharkskin : FGB=1-0/1-2; BGB=4-5/1-0
 The reverse locknit and locknit fabrics if knitted under the same
condition show different appearance and properties.
 The reverse locknit is more rigid fabric because the BGB long
underlaps are trapped by the shorter FGB underlap.
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9. Reverse locknit and sharkskin
FGB: 1-0/1-2 FGB: 1-0/1-2
BGB:2-3/1-0 BGB: 4-5/1-0
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10. Queen’s cord
 Queen’s cord is a very stable structure.
 The pillar stitches act as warp yarns and the
long underlaps act as weft yarns in the fabric.
 Therefore, its dimensional stability should be
near to the woven fabrics.
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11. Thank you
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