Many novice craftsmen mistakenly believe that the main thing in a sewing machine is the thread tension settings or the presser foot, but it is the needle that is the very tool that is in direct contact with the material. The wrong needle can turn the sewing process into a nightmare, leaving strings in the fabric, skipping stitches, or even breaking on dense fibers. Choosing the right tool is not just a recommendation, but a fundamental requirement for obtaining a quality seam.
Modern sewing machines, whether classic Janome or electronic BROTHER, require an exact match of the number and type of needle to the material being processed. A thin needle intended for silk simply will not penetrate thick denim and will break, while a thick needle will leave huge holes on delicate chiffon. Understanding the markings and purposes of different needles can help you avoid most stitching problems.
In this article we will analyze all the nuances, from deciphering European and American numbers to specific shapes of the tip. You will learn to accurately determine which tool is needed for knitwear, leather or thick coat fabric. Choosing the right needle prolongs the life of your sewing machine and saves the sewer’s nerves.
Numbering system and marking of needles
The first thing a user encounters when purchasing consumables is strange numbers on the packaging, for example, 80/12 or 100/16. This is not a random set of numbers, but a standardized numbering system accepted throughout the world. The European number (first number) indicates the diameter of the needle in millimeters multiplied by one hundred, while the American number (second number) indicates the size, where the larger the number, the thicker the needle.
Fine needles with numbers from 60 to 70 are designed for working with delicate and light materials. They have a minimal core diameter so as not to damage the structure of thin tissue. Using thicker needles on such materials will result in unsightly holes that will be visible even after washing.
The middle range, which includes sizes 80 and 90, is considered universal. These are the needles that are most often found in the machine by default and are suitable for sewing clothes from medium-weight cotton fabrics, blouses and light outerwear. If you're unsure about which needle to use for a regular cotton dress, this range will likely be the one for you.
Thick materials such as denim, coat fabrics or upholstery require reinforced needles numbered 100, 110 or higher. They have increased core strength and an enlarged eye to allow thick thread to pass through. Trying to pierce several layers of denim with a thin needle is guaranteed to lead to its breakage and possible damage to the shuttle device.
Important to rememberthat the needle number should be in harmony with the thickness of the thread. A thin thread in a thick needle will “dangle” in the eye, causing looping, and a thick thread in a thin needle will constantly break as it passes through the eye.
⚠️ Attention: Never use dull or deformed needles. A dull tip does not pierce the fabric, but pierces and tears the fibers, which is especially critical for knitwear and synthetic materials. Change the needle after every 8-10 hours of active work.
Types of points and their purpose
The shape of the needle point is the second key parameter that determines the quality of the seam. The Regular Point is designed for woven fabrics where the needle must push the warp and weft threads apart as it passes between them. However, this approach does not work for elastic and knitted fabrics, since a sharp needle cuts the threads of the knitwear, causing tightening and tearing of the seam when stretched.
For knitwear, jersey, lycra and other elastic materials, needles with a rounded point (Ball Point) have been created. The tip of such a needle does not pierce the fibers, but gently pushes them apart, passing through the loops of the knitted fabric. This allows you to maintain the integrity of the fabric structure and ensure high elasticity of the seam, which will not burst when worn.
Needles for leather and leatherette deserve special attention. They have a blade-shaped cut point (Cutting Point), which makes a neat cut in dense material, where the thread can easily pass. A regular needle may simply not penetrate natural leather or leave a too rough mark, and a knitted needle is useless here.
There are also specialized Jeans needles with a very sharp and strong tip, embroidery needles with a long eye, and quilting needles with a short point for precise needle-pointing at seam joints. Each modification solves a specific problem, simplifying the work of the master.
Correspondence table for needles and fabrics
In order not to get confused in the variety of sizes and types, it is convenient to use a pivot table. It will help you quickly navigate when choosing consumables for a specific project. Save this information or keep it handy as you work.
| European number | American number | Fabric type | Recommended thread (tex/no.) |
|---|---|---|---|
| 60-65 | 9-11 | Silk, chiffon, organza, thin nylon | Thin (No. 80-100) |
| 70-75 | 10-11 | Thin cotton, cambric, viscose, lining fabrics | Medium thin (No. 60-80) |
| 80-90 | 12-14 | Cotton, linen, chintz, medium weight suiting fabrics | Medium (No. 40-60) |
| 100 | 16 | Thick cotton, denim, drape, gabardine | Thick (No. 30-40) |
| 110-120 | 18-19 | Thick denim, coat fabrics, furniture upholstery | Very thick (No. 20-30) |
Using a table allows you to minimize the number of errors, especially when working with new, unfamiliar materials. Always start with a lighter gauge when in doubt and move to thicker needles only when necessary.
Specialized needles for difficult materials
Working with non-standard materials often requires going beyond the basic set. For example, when sewing microfiber or coated fabrics, regular needles can leave noticeable puncture marks that do not heal. In such cases, it is recommended to use needles with a special coating, for example titanium, which reduces friction.
To work with pile fabrics such as velvet, velor or corduroy, needles with a special groove on one side are created. This prevents the foot and needle from chewing the lint, allowing the fabric to move evenly. If you ignore this nuance, the stitching may turn out skewed, and the pile around the seam may become crushed.
A separate category is needles for embroidery work. They have a significantly elongated and widened eye so that the decorative thread does not rub against the edges during high-speed embroidery. Using a regular needle for machine embroidery will result in constant thread breaks and damage to the design.
When working with leather, it is important not only to choose a needle with a blade, but also to correctly adjust the presser foot pressure. Too much pressure may leave permanent marks on the front of the product.
The secret of working with leather
When sewing genuine leather, never backtack as the needle will leave a noticeable mark. It is better to leave the long ends of the threads and tie them in a knot by hand or glue them with a drop of special glue.
How to properly install and replace a needle
Correct needle installation is the key to stable operation of the sewing mechanism. The process is simple, but has critical nuances. First, the needle must be inserted all the way into the needle holder. Not going deep enough will cause the shuttle to fail to pick up the thread correctly, causing skipped stitches.
Secondly, the orientation of the groove must be respected. In most modern household machines (Janome, BROTHER, AstraLux) The long groove should face to the left (when viewed from the front) and the flat side of the shank should face to the right or back, depending on the model. An error in orientation of a couple of millimeters can lead to the needle breaking on the shuttle.
To replace you need:
- 🔒 Unplug the machine or turn off the foot controller for safety.
- 🔧 Loosen the needle holder screw using the screwdriver included in the kit.
- 📏 Insert the new needle all the way, observing the correct orientation of the flat side.
- 🔩 Tighten the screw securely while holding the needle with your fingers.
After installation, always make a few test stitches on a scrap piece of the same fabric to ensure the quality of the stitching. This simple action will save the main part from damage.
☑️ Check before launch
Diagnosis of problems: what does stitch quality indicate?
The sewing machine often “speaks” to the sewer through the quality of the seam. If you notice regular skipped stitches, check your needle first. A dull point or a displaced eye does not allow the shuttle to pick up the thread loop in time. Skips can also occur when using a needle that is too thin for thick fabric.
Thread looping at the bottom or top often indicates a mismatch between the needle number and the thickness of the thread. If the eye is too large for the thread, it will dangle and form loops. Conversely, if the thread has difficulty passing through the eye, it will constantly break, especially at high speeds.
Tights and “holey” seams on thin fabrics are a sure sign of using a needle that is too thick. In this case, it is necessary to immediately replace the tool with a lower number, otherwise the fabric will be damaged irrevocably. On delicate synthetic fabrics, marks from a thick needle can melt during ironing, leaving an irreparable defect.
⚠️ Attention: A characteristic knocking or clicking sound when the machine is running often indicates that the needle is touching the hook or needle plate. Stop work immediately and check the installation of the needle and presser foot to avoid serious damage to the undercarriage.
90% of problems with stitch quality (skips, breaks, looping) are solved by simply replacing the needle with a new one, correctly selected by number and type.
Frequently asked questions (FAQ)
How often should you change the needle on a sewing machine?
Professionals recommend changing the needle before each new large project or after 8-10 hours of continuous work. For home use, the rule is simple: if you hear a knocking sound when piercing the fabric or see that the needle has begun to leave marks, change it immediately. The needle is the cheapest but most important consumable.
Can I use overlock needles in a sewing machine?
No, you can't. Needles for overlockers and coverstitch machines have a different shank shape and length. Installing them in a household sewing machine will lead to damage to the needle holder, hook or the needle itself. Use only needles with a standard round shank (system 130/705 H).
Why does the needle break when sewing?
The main causes of breakage: too much tension on the fabric by hand (you pull, but the machine pulls), sewing through pins (strictly prohibited!), incorrect placement of the needle (not all the way or on the wrong side), or using a needle that is too thin for dense material.
What is the difference between Universal and Jeans needles?
Universal needles have a slightly rounded point and are suitable for most woven and some knitted fabrics. Jeans needles have a very sharp, reinforced point and a stronger shaft, specifically designed to pierce dense thread weaves in denim without deforming the needle itself.
Store spare needles in the original plastic box or stuck into a piece of foam. Throwed into a box “in bulk” with scissors and pins, the needles quickly become dull on metal objects.
Choosing the right needle transforms sewing from struggling with fabric to enjoying creating things. Remember that even the most expensive sewing machine will not be able to make a quality seam with a bad or unsuitable needle. Experiment with samples, keep notes, and always have a full set of different needles on hand.