The structure of a warp knit loop is very different from that of a weft knit loop. … This part of the structure is called an overlap. The second part is the length of yarn connecting each formed loop with the next succeeding loop, which is called an underlap, shown in green.
What does Underlap mean in knitting?
Loops are termed ‘laps’ in warp knitting because the warp guides lap their yarn around the needles in order to form the loop structure. The loops (overlaps) may be open or closed. … This movement and the lapped thread it produces is still termed an ‘underlap’.
What is weft knitting?
: a knit fabric produced in machine or hand knitting with the yarns running crosswise or in a circle — compare warp knit.
What is lapping in textile?
Lap. To convert or transfer the opened and cleaned cotton fiber into a sheet form of definite width and uniform unit length is called Lap.
What is warp knitted fabric?
Warp knitting is a family of knitting methods in which the yarn zigzags along the length of the fabric; i.e., following adjacent columns, or wales, of knitting, rather than a single row, or course. For comparison, knitting across the width of the fabric is called weft knitting.
In what direction are loops created in warp knitting?
In warp knitting, loops are formed in predominantly in a vertical direction by needles that knit simultaneously. The yarns are fed to the needles from one or more beams.
What are the knitting elements?
Loop: The basic knitted element. Needle: The knitting element. Sinker: The supporting element for knitting. Feeder: The yarn feeding element. Cylinder/Dial: The device to decide the.
Why it is called weft knitting?
Weft knitting is a knitted piece of fabric where the stitches run from left to right horizontally across the fabric. It is usually knitted with one piece of yarn, and can be made either by hand or using a knitting machine. … The knitting machine was invented to speed up the manufacturing process of knitted products.
What are three basic stitches in weft knitting?
There are four fundamental stitches forming the diversity of weft knits: knit stitch, purl stitch, float stitch and tuck stitch. The three basic single weft knits are jersey, rib and purl, which are composed of all knit stitches or of knit and purl stitch.
Which is stronger warp or weft?
Warps yarns are stronger compared to weft yarns. During the weaving warps are held under high tension, moves up and down for shed formation. Warp yarns are finer than weft yarns.
What is a lapping process?
Lapping is a machining process in which two surfaces are rubbed together with an abrasive between them, by hand movement or using a machine. This can take two forms. … The other form of lapping involves a softer material such as pitch or a ceramic for the lap, which is “charged” with the abrasive.
What is lapping in column?
Lap length or overlapping length is the length at which two bars of a column are spliced or overlapped in order to maintain the continuity of the bars throughout the length of the column. This method of overlapping two reinforcement bars is called lap splicing. … Lapping Zone of Columns as per IS 13920: 1983.
What are the disadvantages of knitted fabric?
What Are the Disadvantages of Knitting?
- Knitting is a Real Time-Suck. …
- Knitting is Costly. …
- Knitting Can Worsen Arthritis. …
- Knitting is Attention-Grabbing. …
- Knitting is Something a Lot of People Don’t Understand. …
- Knitting is Difficult… …
- Knitting Encourages Hoarding.
What are the two types of knitted fabric?
There are two basic varieties of knit fabric: weft-knit and warp-knit fabric. Warp-knitted fabrics such as tricot and milanese are resistant to runs, and are commonly used in lingerie. Weft-knit fabrics are easier to make and more common.
Can warp knitting be done by hand?
Warp knitting requires the use of a machine, it cannot be done by hand. Warp knitting is generally used for knitting fibres such as Aramid, Carbon and glass as it puts less pressure on them and uses more careful handling than weft knitting.