What does PPI stand for in weaving?
Picks per inch (or p.p.i.) is the number of weft threads per inch of woven fabric. A pick is a single weft thread, hence the term. In general, the higher the picks per inch, the finer the fabric is.
What is PPI in textile?
Fabric Construction refers to the number of threads per square inch in a fabric. It is found out by counting the number of threads in the warp and weft in a square inch of the fabric. Fabric construction is written as “136 x 96”, which means that the fabric has 136 Ends per inch (EPI) and 96 Picks per inch (PPI).
How is PPI calculated in weaving?
If it’s plain weave, twill, or lace weaves, this is usually the same number as warp threads per inch. Then you multiply that number (picks per inch) times the number of inches you’ll be weaving the piece times the width of the weaving plus about 10% (for example, by 11 inches for something 10 inches wide).
Why is PPI more than EPI?
Weft prominence: Weft yarns visibility/prominence in both side of fabric is seen. In case of plain weave, finer yarns are used in weft, coarser yarns are used in warp and picks per inch (PPI) will be more than ends per inch (EPI). Weft crimp may be more than warp crimp therefore, it shrinks more in weft direction.
How can you manually calculate PPI in weaving machine?
Take the woven fabric & marking 1 inch with the ball pen according to the warp & Weft wise of the woven fabric. Then set the marking point with the multiplier scale & counting the EPI & PPI of woven fabric in 1 inch. Ends per inch and Picks per inch are counted by the magnifying counting glass.
How do you find EPI?
The 3 main tests used to diagnose EPI are:
- Fecal elastase test. This test measures the amount of elastase, an enzyme produced by the pancreas, in your stool. …
- Fecal fat test. This test checks the amount of fat in your stool. …
- Direct pancreatic function test.
What is picks per inch in weaving?
Picks per inch/inch (or p.p.i.) is the number of weft threads per inch of woven fabric. A pick is a single weft thread, hence the term. In general, the higher the picks per inch, the finer the fabric is.
What is RPM in weaving machine?
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The figure “2,105 rpm” means that 2,105 weft threads are inserted per one minute.
What is the sett in weaving?
“Sett” is one of those fabulous old-fashioned weaving words that might seem strange at first, but refers to something pretty simple: how many strands of warp yarn there are in a single inch of weaving width.
Is sett the same as Epi?
The spacing of your warp is called your sett. It is usually indicated by “epi” which stands for “ends per inch” (also referred to as dpi which stands for “dents per inch”). This indicates how many warp threads (these are the verticle threads on a loom) you have in one horizontal inch.