Double needle for a sewing machine: how to thread and sew?

Paradoxical as it may sound, a small needle in sewing plays a key role. Of all the elements of the sewing machine, the thin needle receives the greatest load during operation. Therefore, such a tool should not only be of high quality, but also competently selected for the type of material. A seamstress with little experience can easily get confused in the vast variety of specimens and their characteristics. The ability to understand the markings and purpose makes it possible to purchase the right part for a specific purpose.

The double seam is performed using a special needle, which in fact is 2 needles connected by one holder.

Depending on the type of tissue, 4 types of double needles can be distinguished.

• Universal needle Suitable for almost any material using natural or synthetic threads. It can also be used in embroidery or for neat zigzag stitching. Universal needle is suitable for cotton, silk, tulle.
• For stretch and knitted fabrics, the use of which in sewing is difficult due to their high elasticity, apply a needle with a rounded tip. It does not damage the fibers of the material during operation. For such a knitwear, it is marked with a special marking - “Stretch”.
• Needles marked “Metallic” created for sewing stitches using metallic threads.
• Thick needles allow you to sew lines on fabrics with high density, such as jeans, costume. They are indicated by the “Jeans” icon.

The width between the needles is also different, depending on the canvas that will be used to create the clothes. It can be narrow (1.5 mm thick) and wide (up to 6 mm). In order not to make a mistake with the choice and purchase the right double needle, pay attention to the designations indicated in the marking of 2 digits: the first indicates the distance between the needles, the second indicates their size, and they must be of the same cross-section.

The main task in working with such a sewing element is precisely select the thickness of the needle and thread for the type of fabric. Only then can smooth and beautiful lines be achieved. Working with such a needle is a great pleasure. It also provides unlimited opportunities in needlework. It can be seasoned with multi-colored threads and get an unusual decorative embroidery. A small distance between the needles will allow you to achieve a shadow effect, and from the resulting contour - create a three-dimensional pattern.

Also, without such an attribute, it is almost impossible to create unusual edges of the collar, cuffs, pockets. Quilted items are quickly and effectively stitched.

Not all sewing machines can be equipped with a double needle, but only those that are able to complete the zigzag stitch. The main thing to consider when choosing such a needle is which fabric you are going to use. Since, as noted above, the width between them and their thickness directly affect the quality of the seam.

Technically, such a needle is installed in the same way as any other. It is important to remember that the saw cut of the needle is located behind: that is, it is directed backward, and its round side should be in front. In 2 needles, threading at the same time will not be difficult. The thread is threaded in exactly the same way as in one needle. However, sewing coils need 2 pieces. Experienced craftswomen arrange the spools so that one unwinds the thread counterclockwise and the other clockwise. So they will not be tangled during sewing.

Both threads will pass through one upper tensioner, it should be loosened so that the thread does not tighten or break. The tension in the lower bobbin also needs to be loosened. When sewing with double seam, it is best to use threads with good stretch. And to create a high-quality stitch, the lower thread should be thinner than the upper, since the lower thread will be used by the 2 upper ones, creating a zigzag stitch.

Sew with a double needle on a sewing machine, like a regular one. The main thing is to choose it correctly. The first thing you should pay attention to is the maximum slot width of the needle plate. Wrong needle selection can cause it to break during sewing, as the gap in the plate will touch. Here, the maximum guideline becomes the maximum permissible width of the zigzag line.

You need to follow this strictly so as not to accidentally switch to another mode. Any other position will break the element.

To reduce the risk of breakage allows a small distance between the needles (0.16-0.25 cm). To be sure, pre-check how the needle passes without a thread idling. It should pass freely, without touching the edges of the needle plate.

Threads of good quality should also be used. Choose thin and elastic. In order for the stitches to be made without gaps and with the correct tension, one thread should be one size smaller.

The width of the ornament in the performance of a double needle will be as much as half a millimeter, and this is its main feature.With a double needle, you can both sew and sew, embroider, make quilted seams. Moreover, such stitches are capable of performing a decorative and finishing role along the bottom of the product.

Such a needle for a seamstress is a real lifesaver. For example, to add more beauty to a blouse, you need to add assemblies. They can be made using this device.

In turn, the tandem of a double needle with a special foot will further expand the possibilities during work, enriching it with additional operations. With their help, you can sew thin beads, cords, form pinches and more.

For knitted fabrics, the thinnest double needles are used, the distances between which are 0.25 and 0.4 cm. Moreover, the tips of the tips of these needles are rounded. This is to ensure that the needle does not pierce, but carefully spreads the fibers of the material. Most often, for such fabrics, a stitch seam is used, which becomes flat after the unfolding of sewn parts.

The main thing is to consider the type of knitted fabric. If the knit is dense, thick and not very elastic, it is necessary to loosen the tension of the bobbin thread. Another situation is with knitted knitwear, which stretches quite a lot, and it requires serious stretch of the stitch. For jeans products, a double seam on deferred overhead parts is their main highlight. Get a smooth seam allows a special needle with pointed tips, penetrating into thick layers of material.

Decorative details made with decorative stitches look great. Wherein in one pass, a double needle performs 2 times more stitches.

After correctly installing the double needle, as well as threading and adjusting the thread, you can start sewing products of almost any complexity. Trim the edges, sew on the braid, make frill and exquisite embossed seams with a cord or elastic band.

When working with a double needle, you should follow simple rules:

• the wheel on the sewing machine should rotate on itself;
• the choice of needle and the thickness of the threads depends on the fabric that you are going to use;
• despite the fact that the thread tension is set before work, it is necessary to constantly monitor it, as well as the stitch and the specified dimensions of the stitch;
• Before proceeding to lay the seam, you need to put the knitwear under the foot, make an accurate puncture and only then lower the foot;
• if during the work the fabric accidentally comes off the teeth, do not stop working immediately.

Follow safety rules when using a sewing machine.

• If you are using a double needle for the first time, carefully read the instructions. Each manufacturer indicates the technical capabilities and features of the tool.
• Store needles in a needle box or in a special box with a lid. This is especially true for broken items. They should be stored separately so as not to get hurt.
• After each work, check the number of needles to prevent accidental loss.
• Never use needles with mechanical defects. At best, they can form uneven punctures, at worst they can lead to injuries.

See how to sew with a double needle.