While there are several guidelines for good machine embroidery designs , there are seldom any hard and fast rules. There is no formula method for digitizing all designs; there are simply way too many variables involved. Rather, guidelines are balanced against the task currently happening as well as the conditions under which a certain design might be sewn. This should be regarded as you determine underlay demands:

Underlay must serve a purpose

Underlay must be consistent

Underlay should be orderly

Underlay ought to be appropriate

The 2 main primary purposes of underlay are to stabilize the fabric by affixing it for the stabilizer and also to help the top stitching. Think about underlay as a means to initially baste the fabric on the stabilizer. The easiest way for doing that is with what is recognized as an edge walk, that is merely an outline on the design set within the edges on the cover stitching. On smaller things, it may well just be a line of running stitches up the middle, called a centre walk. On bigger sections, this edge walk is followed by a light fill or zigzag as required by the fabric. In excessive cases, this light fill will be replaced with a mesh or grid of stitches. In this way, underlay lessens fabric shifting throughout the sewing process, therefore also reducing puckering. Correct selection and use of underlay reduces the push and pull distortion ensuing from machine thread tensions. By attaching the fabric to an suitable stabilizer, the fabric even very unstable one acquires the stability qualities of the backing used.

Remember that there are additional reasons for fabric puckering that won’t be fixed with underlay. For instance ,; poor hooping strategies, poor or inferior stabilizing choices, and tight machine tensions, in particular when combined with polyester thread. Underlay supports the top stitching by retaining a crisp, well defined edge between abutting aspects of stitches. Underlay also stops stitches from sinking into the fabric. Highly textured fabrics like terry cloth towels can benefit from the light net of underlay to hold down the nap and offer a smooth even surface for later stitches. Digitizers also utilize underlay creatively to include more loft for some sections of an embroidery designs to increase interest, depth, and realism.

CONSISTENT AND ORDERLY

Underlay needs to be applied in a neat and tidy manner, which occurs automatically when applied as an attribute option; it must not look like haphazard scribbling. Consistency doesn’t indicate that the same type or amount of underlay needs to be given to every object within your design.

APPROPRIATE

This one is complicated and it is figured out mostly from experience and assessment. Picking the best combination of underlay is relative to: Fabric type, color, and stability; Design size, stitch count, density; Desired effect. Smooth, hard, stable fabrics like nylon, supplex, cordura, plus some polyester mixes may require nothing more than an edge walk. Leather, vinyl, paper, and metal really should have no underlay normally in order to avoid unintentional cutwork. Textured fabrics and unstable goods will need more underlay. You will discover why there is not “cookie cutter” method of underlay

As the design size increases, stitch count increases plus the possibility of fabric distortion raises. Merely utilizing a bigger hoop reduces the stability of the fabric. A design with significant elements of fills, especially if these fills run in several directions, substantially boosts the chances for fabric push and pull. Underlay may also help manage design distortion, but remember other factors that affect distortion: Correct embroidery set up – stabilizer selection, fabric, thread, and needle alternatives; hooping strategy; machine tensions; Proper utilization of density; Correct use of compensation. Creative use of underlay can dramatically change a design. If a satin or fill area is sewn over an area of stitches with both areas having the same stitch direction, the top stitches will fall into the previous layer. This is often a good thing if you need blending or a bad thing if you would like sharply delineated objects. Including underlay prevents blending. Smartly placed and extra underlay adds loft to satin stitches. A great digitizer leverages underlay to his or her gain

here are a few of concerns digitizers look at when making use of underlay.

Color-Underlay, like under garments, should not be visible, so it is advisable to make use of the same color as the covering stitches. When using the auto underlay options, you won’t need to think about this. If an initial global underlay is used, think about setting it as being another color so that it could be sewn in color that fits the fabric. Stitch Length Make use of a moderate stitch length to stop the looping of longer stitches and to keep the stitch count more sensible than would result with short stitches. Use smaller stitches only when needed to prevent exposure issues.

Density-Use only sufficient density to meet the needs of the job.Placement-Underlay shouldn’t reveal or bleed through to the covering embroidery design . Make certain underlay never runs within the exact same direction as the top stitches. Pay close attention to placement and regularity in small objects, especially tiny letters.

Amount-Use underlay judiciously when and where needed; don’t use it in excess, which can unnecessarily run up stitch counts. Too little underlay, on the other hand, may result in poor registration, fabric puckering, “fuzzy” or jagged edges on objects, and fabric show-through. At minimum, use enough underlay to firmly and smoothly tack backing to fabric when working together with wovens and knits.