Schmetz Sewing Machine Needles TWIN JEANS 4.0/100 Pack of 1 Needle

Schmetz Sewing Machine Needle, TWIN JEANS Size 4.0/100, Pack of 1 Needle, System 130/705H-J (Suits most domestic machines)

Two Jeans needles mounted on one shank create two rows of stitches simultaneously.

Jeans Needles: Ideal for denim, canvas and other tightly woven fabrics. The sharp strong point will penetrate dense fabrics. Jeans needles are excellent for top-stitching woven fabrics.

Choosing the correct needle:-
Stitch quality is dependent on using the correct needle for your thread, fabric and the type of machine sewing you are using for your project. When the wrong needle is used you may get stitching that puckers, skips or thread may break.

1. Fabric.
Consider fabric weight, thickness, weave type (woven or knit), weave density (close weave or loose weave) and composition (natural fibre or synthetic).

2. Thread.
Consider matching your thread composition to your fabric (polyester threads for synthetics, cotton for cotton fabrics etc) and your sewing purpose (seams, hems, topstitching, quilting, machine embroidery etc)

3. Needle Style.
If your project or thread is specialised, choose your needle based on that rather than fabric type, eg. embroidery, quilting and twin needle work have a specific needle while there is a specific thread for topstitching which requires a certain needle type.
If your project involves general sewing or overlocking, base your needle choice on the characteristics of the fabric you are sewing with. For instance are you working with woven fabrics (heavy or light, denim jeans), leather, or stretch fabric

4. Needle Size.
When you have selected the type of needle you must also choose the size (width) of needle.

SizeFabric WeightMetricImperial608Very Fine Synthetics and Cottons7010Net, Chiffon, Nylon Sheers7511Volle, Chiffon, Organza8012Cotton Lawn, Taffeta, Silks, Tricots9014Poplin, Chintz, Gingham, Syn Velvets10016Cord, Denim, Gabardine, Heavy Suiting11018Heavy Denim, Leather, Etc.12020Cord, Denim, Gabardine, Heavy Suiting
Replace Needles.
Machine needles should be replaced after a maximum sewing time of 8 hours. Replace needles more frequently when sewing synthetic fabric, appliques or machine embroidery. This will avoid skipped stitches, fabric pulls and frayed threads.

Breaking Needles.
Machine needles are designed to break for the protection of the sewing machine hook mechanism. If a needle bends - do not sew with it. When a machine needle breaks, it is a warning to check the following:-

• Is the needle type and size correct for the fabric
• Is the thread too thick or unsuitable for the needle size and application
• Is the upper thread feeding freely
• Are the thread tensions set too tight
• Does the machine need cleaning/oiling
• Is the correct presser foot fitted
• Is the correct sewing technique being used
• Is the fabric being pulled, pushed or dragged during sewing
• Twin needles, triple needles and other specialty needles can break due to excessive heat build up. To avoid breakage reduce speeds and avoid prolonged useage.