Chapter 9
Three fundamental stitch types
Digitizing software combines different stitch structures to build an embroidery design. Each has a purpose, and choosing the wrong one can affect coverage, detail and durability.
Running
A single line of stitches used for outlines, fine details, travel paths and some underlay.
Satin
Closely spaced stitches spanning a narrow area. Common for lettering, borders and columns.
Fill (Tatami)
Rows of stitches used to cover broader shapes and large design areas.
One design may use all three
For example, a logo may use running stitches for detail, satin for lettering and fill stitches for a large background shape.
Quick Fact
Stitch type is selected by shape and desired appearance.
Dynamic Perspective
Evaluate the stitched result, not only the artwork or software preview.
Density and fabric interaction
What stitch density means
Density describes how closely stitches are placed. The appropriate setting depends on thread, stitch type, fabric, stabilizer and design construction. There is no single density that works for every garment.
Too Open
Gaps or fabric show-through may appear.
Balanced
Coverage is even without unnecessary buildup.
Too Dense
Excess stitches may cause stiffness, puckering or thread breaks.
Density is not the same as stitch count
Two designs with similar stitch counts may sew very differently. Stitch length, layering, sequence and underlay all matter. Adding more stitches is not always the solution to poor coverage.
Production checks
Watch for fabric distortion, needle deflection, uneven coverage and stiff embroidery. Test on the actual garment using the intended backing, needle and thread.
Quick Fact
Too much density can be as problematic as too little.
Dynamic Perspective
Start with the fabric and finished appearance; adjust the digitizing only after checking the full setup.
Underlay and troubleshooting
Why underlay matters
Underlay stitches are placed before the visible top stitches. They help secure the fabric, support stitch edges and reduce the tendency of top stitches to sink into textured material.
Center-Walk
A line beneath a satin column helps stabilize narrow lettering and borders.
Edge-Walk
Stitches near the edges help define and support a satin column.
Zigzag / Lattice
A broader foundation may support wider satin areas or fills, depending on the design.
When stitches do not look right
Gaps may point to insufficient coverage or fabric movement. Puckering may indicate excess density, inadequate backing or hooping issues. Uneven lettering may involve underlay, pull compensation or stitch direction. Test one change at a time.
Quick Fact
Underlay is the foundation; it is usually hidden by top stitching.
Dynamic Perspective
A successful sew-out combines suitable digitizing, stabilizer, thread, needle and fabric preparation.
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