Schmetz Sewing Machine Needles, TWIN STRETCH, Size 4.0/75 Pack of 1 Needle
Schmetz TWIN STRETCH Machine Needles, Size 4.0/754 Pack of 1 Needle
Twin Needles: Ideal for heirloom sewing, hemming and decorative top stitching. Size indicates distance between needles. **Twin and triple needles are fixed in a nylon block and should be used at a lower speed and not for prolonged periods.
Stretch Needles: Ideal for knits with a two way stretch particularly those containing lycra. Used when sewing swimwear, lingerie and for sewing elastic. The stretch needle has a specially designed scarf which prevents skipped stitches.
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.
Consider fabric weight, thickness, weave type (woven or knit), weave density (close weave or loose weave) and composition (natural fibre or synthetic).
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.
|60||8||Very Fine Synthetics and Cottons|
|70||10||Net, Chiffon, Nylon Sheers|
|75||11||Volle, Chiffon, Organza|
|80||12||Cotton Lawn, Taffeta, Silks, Tricots|
|90||14||Poplin, Chintz, Gingham, Syn Velvets|
|100||16||Cord, Denim, Gabardine, Heavy Suiting|
|110||18||Heavy Denim, Leather, Etc.|
|120||20||Cord, Denim, Gabardine, Heavy Suiting|
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.
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.
|Unit Of Measure||ea|
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