What is the polyester yarn fabric?

2019.03.04SOURCE:

1, polyester filament linear density (i.e. size) line density is filament fineness degree index. The filament consists of a number of filaments, so that the yarn linear density contains two layers of meaning.
Is a multifilament line density is two monofilament line density. 100D / 36F, 150D / 36F, the representation method of fiber specifications. The left diagonal data representation fiber size, line density is multifilament.you can buy polyester voile.
D is a fiber size unit "Dan", namely in standard condition, with 9000 meters long grams of fiber, such as 100 grams is 100 denier (100D); the data representing the number of diagonal hole spinneret spinning, also said the number of filaments, the specifications of the silk is such as 36F, mean spinneret used has 36 holes, namely the fiber has 36 monofilaments.
Monofilament line density is left by the right. For example: 50D / 18F iron: 50 Dan 18 hole, iron roll. 75D / 36F paper: 75 denier 36 hole paper tube package. 150D / 36F cation: 150 denier 36 holes, the cationic improving dyeing properties. Now another indicator for linear density is dtex.
The 10000 meter long fiber mass called decitex. The special number representation is also useful. 1 = 10. Conversion: 1 dtex and Dan dtex=1.1 D if 10000 meters filament weight of 1.67 grams, the filament size of 1.67dtex. The special fiber (dtex) (10000* = the number of grams of weight of the fiber / fiber length (m)).
What is the difference between pure tapered yarn and polyester yarn?
Thirty-two and twenty-one belong to fixed remanufacturing: (English branch)
How many 840 yards can a pound (454 grams) of raw material be spun, defined as how many yarns. Thirty-two 840 yards, or 32 pieces.
150D, a fixed length system:
Daniel (D): The weight grams of 9000 meters long silk at a given moisture regain are called denier. 9000 meters long and weighing 150 grams, or 150D.
Pure polyester yarn is to cut polyester yarn into 32 mm, or 38 mm long, and then spin.
 (The length of cotton fibers is about 38 mm).
36F, 72F, 96F: The number of holes in the spinneret when polyester filament is made. In other words: 150D36F polyester filament, is composed of 36. The 150D96F polyester filament is composed of 96 fibers. 150D144F is already ultrafine.
It's all conceptual knowledge.
Please understand it slowly. I hope it will help you.
Another: conversion
1TEX = 0.111D = 590.6 / British Branch = 1000 / Public Branch
Another: silk = infinite length (continuous production)

Yarn = Cut the yarn into the same length (38mm) and spin it. It is called yarn (e.g. polyester sewing thread).