What is wales per inch?
Wales per inch (WPI)indicate the total numbers of wales in one inch of linear fabric. WPI is one of the important parameters to determine GSM of fabric and other fabric properties. Courses Per Inch. Coursesper inch (CPI)indicate thenumbers of coursesin one inch of linear fabric.
What is warp knitted fabric?
Warp knits Warp knit fabric is similar to that of a woven fabric in that yarns are supplied from warp beams. The fabric is produced, however, by intermeshing loops in the knitting elements rather than interlacing warps and wefts as in a weaving machine. Warp knitted fabric is knitted at a constant continuous width.
What is purl fabric?
Purl Knit Fabric is made by knitting yarn as alternate knit and purl stitch in one wale of the fabric. The Purl Knit fabric has alternate courses of knit stitch and purl stitch. The fabric is reversible and identical on the face and back sides of the fabric. The fabric does not curl and lies flat.
What is CPI and WPI in fabric?
Numbers of course in an inch in knitted fabric is called course per inch (CPI). On the other hand, the column of loops running lengthwise the fabric is known as wales. Numbers of wales in an inch in knitted fabric is called wales per inch (WPI).
What is EPI and PPI in textile?
In woven fabric, EPI and PPI are measured by the number of yarns in a fabric. EPI means ends per inch and PPI means pick per inch. The number of yarn in the warp direction is measured by EPI and the number of Weft yarn in the fabric is measured by PPI.
What is the difference between warp and weft?
Warp and weft are the two basic components used in weaving to turn thread or yarn into fabric. The lengthwise or longitudinal warp yarns are held stationary in tension on a frame or loom while the transverse weft (sometimes woof) is drawn through and inserted over and under the warp.
What is Milano fabric?
Milano Knit Fabric is made from two sets of yarns knitted diagonally. The face of Milanese Knit Fabric has fine vertical rib, and reverse has diagonal structure. Milano Knit Fabric is lightweighted, drapey, has a smooth texture and is run-resistant.
What is rib material?
Rib knit is a knitted fabric with alternating high and low knit columns. More elastic and durable than jersey knits, they tend to fit to the body.
What is a Wale in knitting?
In knitting. In knitting, a wale is a column of loops running lengthwise, corresponding to the warp of woven fabric; a course is a crosswise row of loops, corresponding to the filling.
What is difference between weft and warp knitting?
“Warp” is a series of threads that run from the front to the back, and “weft” is a series of threads that run in a pattern through the warp. Weft is a yarn that runs back and forth whereas a warp is that which run up and down. Continuous yarn is used in weft knitting for forming courses and rows of loops.
What is Epi & PPI?
PPI: picks per inch, the number of weft threads in one inch of woven fabric. EPI: ends per inch, the number of warp threads in one inch of woven fabric. It is often used interchangeably with sett (see below) Sett: the distribution of warp ends in your fabric, usually over one inch (hence epi = sett).
How is PPI and EPI calculated?
In most fabrics, EPI is higher than the PPI.
- Step 1: Collect fabric swatch. Collect fabric swatch for which you are going to find EPI and PPI.
- Step 2: Make a square of one sq. inch on the sample.
- Step 3: Count number of ends and Picks inside those squares.
What is TPI in textile?
TPI (twists per inch or turns per inch) is a term used in the textile industry. It measures how much twist a yarn has, and can be calculated by counting the number of twists in an inch of yarn.
What is a Raschel fabric?
Description: Raschel Knit Fabric is a type of Warp knitted fabrics, which are made in a special knitting machine with yarns from warp beam. The face side of the fabric has slightly inclined vertical knitting loops whereas the backside of the fabric has inclined horizontal floats. They do not ravel.
What is single jersey fabric?
Single jersey: A single thickness of knitted fabric made with a fine grade yarn. It is usually made using stocking stitch, but can also be made using rib stitch or other patterns that are knitted in. Interlock/double jersey: Two layers of jersey fabric are knitted together, with the wrong sides sandwiched together.
How do you remember warp and weft?
NOTE: A simple way to remember and distinguish the two is to look at the “A” in warp and the “E” in weft. The letter “A” has its two vertical strokes, which conveniently goes in the up/down direction like a warp yarn….Weft yarns are:
- in the crosswise direction.
- also called “filling” or “picks” in weaving terms.