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LAPS OF WARP KNIT MACHINE
PRESENTED BY:
MD: FAHIMUZZAMAN
TE-14025
DEPARTMENT OF TEXTILE ENGINEERING
MAWLANA BHASHANI SCIENCE AND TECHNOLOGY UNIVERSITY
WHAT IS LAP?
Loops are termed as laps in warp knitting because warp guide laps their yarn
around the needle in order to formed the loops structure.
TYPES OF LAPS
Laps
Overlaps Underlaps
OVER LAPS
• Warping the yarn around the needle
is called over lap. It is done by
shogging and sewing motion.
UNDER LAPS
Length of yarn connecting the loops is
called underlap Or two successive over
lap connected by the yarn , that length of
yarn is called underlap.
BASIC OVERLAP AND UNDERLAP VARIATION
CLOSED LAP
An overlap followed by an
underlap in opposite direction
OPEN LAPS
AN OVERLAP FOLLOWED BY AN
UNDERLAP IN THE SAME DIRECTION ONLY OVERLAP NO UNDERLAPS
LAYING-IN
Only underlaps no overlaps
MISS LAPPING
Neither overlaps nor underlaps
Laps of warp knit machine

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Laps of warp knit machine