You can find threads with weight 50 that are STRONGER than threads marked weight 40. There are a number of comprehensive articles on Wikipedia (. ) If 1000 meters weighs 25 grams, it is Tex 25. which you may want to consult for more obscure units. Suffice to say, this is used mostly for industrial threads, good to know it exists, glad I can ignore it! Not used for industrial machines, the small diameter makes it unsuitable for high speed sewing but widely used in home sewing machines. this article. Serger threads are generally thinner than the regular sewing thread because serger stitches take a lot of thread to form the stitch so if you have cones marked as serger threads you should know that they are thinner threads. International Organization for Standardization (IOS) as the measurement unit for thread density and as such is probably going to increase in popularity. If weight is 40, it takes a length of 40km to make 1kg of thread. Trust your eyes and fingers more than the label. These numbers, 30, 40, and Let us know if you need help finding the right size sewing thread for your application! The numbers that trail the slash are the number of plies that make the final, stitch-ready thread. More economical (price per length) than a small spool. The first number follows the Gunze Count standard and indicates the thread size. There are more units, I just selected a couple as examples. The most common units used for classifying thread sizes are Weight (wt), Denier (den) and Tex. Tex 21 to Tex 70 Heavy Tex Threads . Tex 20 to Tex 69 (regular), Heavy Tex Threads . Both these threads look the same in diameter/thickness to my naked eye. The Tex standard uses 1,000 meters of thread per gram as the starting point. In this way, a 3-ply product of 1300 Denier becomes 3900 Denier. Threads used for industrial sewing machines (industrial sewing thread) are generally categorized differently than for home sewing and below is an example from the Toledo Industrial Sewing Machines Ltd. Notice the only familiar notation is “Tex”. If it’s a silk thread it’s probably good for lightweight fabric (and I can say I used it numerous times for my silk projects) – is it thinner than polyester thread? (or Tex.or Den. The lower the number, the thicker and stronger the thread. That means a 50/2 and a 50/3 With 5% added for twist contraction the total Denier is 662. Although this appears to be a very accurate measurement, it is necessary to remember that 1,000 meters of thread were both labeled as 50 wt. . )numbers can have the same thickness (see the example above with the Eloflex thread). The thread thickness depends on the density of the thread, and the fibers used. I have all these different spools at home and couldn’t be more confused until I decided to study the problem and learn all the information about thread sizes. . But the question is – how do we determine what thread is thinner and what thread is thicker? However I personally have real doubts this is what the number means and I presented it to show that even when the manufacturer does put a label, you need to be careful! regular weight threads were labeled 40 wt., and heavy threads were labeled 30 wt. The following table is imported directly from the Wikipedia article I cited above. to poly, and silk to silk. This thread is labeled 120D/2. It is obvious that a 50/3 is heavier than a 50/2 because it has three And a thicker thread is usually weight 30 and lower, tex 30 and higher, denier 300 and higher. However, if it is a commonly used weight such as 30, 40, or 50 wt., it may or may not be surrounding what exactly makes a 50 wt. the weight standard. This thread SHOULD be the same thing as “metric 120”. That number signifies the number of individual strands of thread that are twisted together to make the final product. Size 69 / Tex 70 / Govt. . For something labeled in tex, it would be somewhere around tex 25, and for threads marked in denier, it would be 225. Weight does definitely NOT always mean thread thickness! Selecting the right thread saves time, money, and results in a better product. Ticket numbers are manufacturers reference for total Denier size since different fibers are only extruded in limited Deniers. They are the thread’s denier divided by 10. In this case, we choose the thread by application and fiber. sizes based on the Tex or any other standard of measure, for exact accuracy, compare cotton to cotton, poly Who knows, the spools I have don’t have the size marks. The “Tex” number is the weight in grams of 1000m (1km) of thread. Sz. Sewing thread sizes and how to tell the thread size, In this sewing tutorial, I will talk about, Why is it important to know the sewing thread sizes and when we really need to pay attention to the thread size? . . If it’s written heavy duty it should mean that the thread is thicker. Suffice to say, this is used mostly for industrial threads, good to know it exists, glad I can ignore it! Determining the Denier of a thread made up of multiple plies is as simple as multiplying the Denier of the single end by the number of plies used. We can be confused by all these different numbers but in reality, it’s not so difficult to choose a correct thread size for your project. . With the note that only embroidery thread is labeled in denier. Weight of a thread is the length (in kilometers) of a length of thread that weighs 1 kilogram. . On the other hand, the weight system, most popular in the U.S., is not a . Sometimes, not always, the thread weight (WT. . Tex is an accurate measurement and is considered a direct numbering system, meaning the higher the Tex Sometimes the “1” is omitted so you may encounter simply “240D”. Ironically, the thread weight number which is derived from km/kg is used in North America while all US dimensions are still in inches/feet/yards! The weight followed by the number of strands is in fact the. would be advantageous to understand it. . These plies are Lower the number, heavier the thread. Learn More », Groz Beckert 134 Commercial sizes are set sizes of 30, 46, 69, 92, 138, 207, 277, 346, 415 and 554. Larger denier numbers are heavier threads. Outside the U.S., these standards aren't followed or understood. So I decided to look at the threads I have at home and see how they are numbered. Also, if you want to sew nice seams without seam puckering you should use the same size thread in the bobbin or thinner because if you use thicker thread in the bobbin you can get puckers in your seams.

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