Problems

Material damages · Defective Schiffli embroidery appearance · Needle breakage · Skip stitches/thread breakage

Material damages

Material damages in the area of the Schiffli embroidery can occur especially with knitted fabrics or thin nonwovens. They are often caused by too thick needles that are used to prevent excessive deflection of the long Schiffli needles. Also the use of unsuitable needle points can lead to problems.

Further causes can be the following:

Too loosely clamped fabric · Defective or worn needles · Damaged embroidery tools, e.g. presser foot, needle plate or shuttle

How you can avoid these damages:

Adjust the needle size to your fabric. · Adjust the point shape to your fabric and check the needle point for damages. · Tighten your fabric and check the tools for eventual damages.

Defective Schiffli embroidery appearance

Defective embroideries appear as follows:

Only partly embroidered motives due to thread breakage. Different sizes of eyelet holes or defective appearance of eyelet holes due to worn borers. · Different sizes of eyelet holes or defective appearance of eyelet holes due to worn out borers · Transverse stripes in Schiffli embroidery · Shuttle thread visible on the surface · Distorted embroidery motif · Undesired puckering in the area of the embroidery

How you can avoid such appearances:

Change soiled thread spools · Optimize the thread tension · Use a thread stop motion to quickly detect the point of breakage · Examine the borers · Correct thread guidance · If you embroider knitted fabric, observe the orientation of course and wale. The weft and warp threads of woven fabric should run at right angles after clamping.

Needle breakage

Needle breakage can cause the following problems:

Destroyed fabric parts in the area of Schiffli embroidery · Damages in thin nonwovens · Mesh damages in knit fabrics · Needle fragments remaining in the fabric

How you can avoid these problems:

Adjust the needle size to the fabric to avoid bending and breaking · Check the needle point for damages regularly · Check the correct positioning of the needle · Coordinate the embroidery tools, e.g. presser foot, needle plate, as well as the embroidery thread and material. · Optimize the thread tension

Skip stitches / Thread breakage

Skip stitches and thread breakage are caused by the following:

Incorrect thread tension · Incorrect thread guidance · Incorrect needle system · Incorrectly fitted needle · Use of an oversized embroidery thread in relation to the needle size · Cloth presser adjustment too high

How you can avoid these problems:

Adjust the embroidery thread size to the needle size and the fabric, or try a needle with a bigger SA eye. · Check the correct positioning of the needle · Optimize the shuttle setting · Examine the thread guiding elements · Optimize the thread tension · Reduce the embroidering speed · Replace worn out embroidery tools such as thread guiding elements, needle plate and shuttles. · Optimize the adjustment of the cloth presser