ELNA XPRESSIVE 2 User Manual page 202

200
Cylinder Arm
Machine
Denier
Density
A machine with a structure that makes it possible to embroider
curved or unusually shaped articles, such as caps, sleeves and
pants legs on finished garments.
Unit of weight used to measure the fineness of thread. Equal to
weight in grams of 9000 meters of thread. Deniers are represented
by the weight of the strands of thread, a slash, and the number of
strands per thread, 120/2 Den.
Density is the number of stitches covering a given area. Large
letters, large fill areas and textured fabrics, generally need higher
densities. The reverse is true as well.
There are two measuring systems used in calculating density:
Imperial and Metric. The Imperial system measures density in
stitches per inch (spi). 65 spi means 65 stitches in a 1 inch (linear)
area. The Metric system measures density in embroidery points (pt).
Points refers to the distance between each thread.
To increase density with the Imperial system, you increase the
measurement number. With the Metric system, a higher number of
points indicates a lower density. The following example shows what
happens when you increase and decrease the density in embroidery
points and stitches per inch.