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Needles

Special Application Needles

 

The needle system DB x K5 is specially designed for use in powerful machines.

Needle system DB x K5 - for high functional reliability

The needle system DB x K5 is specially designed for use in powerful machines. The main consideration was the reduction of skip stitches and thread breakage, maximum protection of thread and fabric, as well as loop pick-up.

The Versions

With its bending resistance, even the standard version of the needle system DB x K5 stands above conventional needle systems normally used in embroidery. The constructive features of the SAN® 1 GEBEDUR® and the titanium nitride coating provide maximum wear protection with high stability. The blade construction of DB x K5 KK is the same as the standard version, but the shorter shank means that the bending resistance is lower.

Another needle system used for embroidery

Together with the DB x K5, the DB x 1 needle system is also often used for embroidery. These two systems differ only in the length of the points and in the eye size (for details see diagram). Needle system DB x 1 is suitable, especially in size Nm 55, for sewing very small letters and for sequined embroidery.

Comparison of needle systems DB x 1 and DB x K5‘

Functions:

1. The reinforced blade increases the stability of the needle, reducing needle deflection and breakage.

2. The new scarf chamfer design leads to better loop pickup, reducing skip stitches and needle breakage; in addition, it protects the hook.

3. The optimized geometry between eye and scarf also improves loop take-up and further reduces the number of jumps.

4. The larger eye makes threading easier and makes it easier to slide the thread into the eye of the needle.

5. The GEBEDUR® coating provides maximum protection against wear.

Point styles for single and multi-head embroidery

Het standaardpunt op de DB x K5-naald – het RG-punt – is het punt dat het meest geschikt is voor vele soorten borduurstof. Meer veeleisende applicaties vereisen andere puntstijlen.

 
Normal round point
For embroidering textiles, leather, artificial leather and coated textiles.
Round point with a small ballpoint
Universal point for embroidery of knitted and textile materials such as microfiber.
Light ballpoint pen

For embroidery of knitted fabrics.

Medium ballpoint
For embroidering elastic or coarse-mesh sewing accessories and tulle.
Example: fine embroidery
Example: conventional embroidery without specific requirements
Example: embroidering logo on T-shirts
Example: embroidery on tulle

Common Application Problems and Troubleshooting

From material damage to wrinkling: With the right products and some useful tips and tricks from Groz-Beckert, sewing problems are solved quickly.
Fabric damage when embroidering knitted material

One of the most common problems when embroidering knitwear is damage to the fabric. The causes can vary:

  • Needle is too thick
  • Wrong point style
  • Damaged needle point.

Excessive stitch density, incorrect fabric orientation and poor thread quality – due to fibers being too short or twisted – can damage the fabric. To avoid this, a ball point needle is required. The RG or FFG point is recommended for fine knits, for more coarse knits the FG point.

Example: Knitting yarns tear at pierced needle tips that are too sharp or damaged. Needles that are too thick will stretch the loops too wide and they will burst.
Solution: With the needle system DB x K5 Nm 65 with RG point knitted fabrics can be embroidered smoothly and without any problems.
Irregular embroidery appearance on woven fabric

Embroidery on woven fabric often results in an irregular appearance of the embroidery design caused by irregular thread coverage. The causes include:

  • Ballpoint too big
  • Needle too thin
  • Lettering too small
  • Poor quality of fabric to be embroidered.
Example: Needle deflection from a needle that is too thin or a ballpoint pen that is too large will cause an uneven embroidery effect.
Solution: Using the DB x K5 Nm 75 with RG tip guarantees top results thanks to high stability and precise needle penetration.
Recommendations for embroidering on leather
Cut points are not suitable for leather embroidery. Thread cutting, perforation of leather and uneven opening of the needle opening when changing the stitch direction would result. The RG point is a proven performer for fine to medium hard leathers and the R point for very hard leathers. In addition, the force required to pierce leather from the needle is relatively high, so the needle must be very stable.
Irregular embroidery appearance on leather
A poor embroidery effect on leather is often caused by too small letters and too high a stitch density. But a needle with too thick or poor quality of the leather can also cause a poor embroidery effect.
Example: A cutting point makes a longitudinal and transverse cut in the leather. In extreme cases, the already embroidered leather can be cut out.
Solution: Using DB x K5 SAN® 1 GEBEDUR® Nm 75 leads to problem-free leather embroidery. The embroidery is even and compact
Contract (puckered) while embroidering.
Puckering mainly occurs when very fine and dense fabrics are embroidered, for example wind jackets. Three factors should be considered: – High stitch density: The more stitches there are in a design, the stronger the wrinkles. – Thread size: The thicker the thread, the more pronounced the corrugation. – Thread tension: The higher the thread tension, the more the fabric will be pulled, especially with long satin embroidery. However, needle size has hardly any influence on the degree of fluid secretion.
Example: Puckered stitch.
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