Sewing Fan

What’s The Strongest Stitch On a Sewing Machine?

Which stitch is the strongest among the 10–30 various varieties that are typically available on sewing machines? Sometimes all you want is the longest-lasting, most durable result.

What sewing machine stitch is the strongest? The straight stitch is the strongest stitch available on sewing machines. The straight stitch is extremely difficult to tear, and when used with strong, long-lasting nylon or polyester thread, the product is the most durable. (But not all).

The straight stitch may not be the ideal option in several circumstances.

Let’s examine the various situations.

The strongest stitch we have is the straight stitch

Because of the way the stitch will layer the thread, the straight stitch is quite durable.

We obtain several thread layers stacked on top of one another, which produces a really nice and sturdy outcome. You’ll need to rip numerous threads at once when you try to extract it. The cloth is hardly ever torn along the thread, and when you tug from either side, the extra layers will hold it together.

The stitch on a sewing machine appears as follows:

straight stitch

The mechanical Singer model in this picture has a remarkably straightforward user interface.

It is frequently the stitch that you may pick from initially and is also the one that is most frequently employed. When sewing two items of clothing together, unless they are elastic, you will always use it (more on that later in this post).

Sewing it twice and making sure to move back and forth several times as you start and finish to secure the seam ends will strengthen the stitch even more. By doing this, you can ensure that it is particularly strong at the ends, which is where any fabric will most likely be ripped.

The extremely durable backstitch, which can only actually be sewn by hand (more on that later), is imitated by the straight stitch.

The strongest stitch done by hand

The backstitch is the source of the straight stitch, as was previously explained. a widely used and simple stitch that you may make by hand.

You may stitch backwards twice, covering each area. As the name suggests, you form a loop back by pushing the needle through the cloth. After that, you loop back, make two stitches ahead, loop back, and repeat.

The strongest stitch we can create is the hand-sewn stitch. Why? we can use thicker threads than a sewing machine, for this reason. We are unable to use a highly thick and resilient thread due to the sewing machine’s design and needle-hole. However, when choosing by hand, we may select bonded 3-ply nylon thread that will be ideal for extra-heavy-duty operations.

Increase the stitch length if you want to give the stitch a bit additional strength. Additionally, by doing this, you use more thread, which yields the strongest outcome.

Good instances of when to backstitch with a strong thread include:

  • Outdoor equipment,
  • tents,
  • parachutes,
  • seatbelts,
  • storm-weather kites, and so on.

All circumstances when you want to ensure that the stitch and thread won’t break.

Although you may buy sewing machines that allow you to utilize very thick nylon thread, your typical home machine won’t be able to handle the job. You’ll need a machine made for industrial stitching that can handle it.

Ensure that the bobbin thread and top thread are of equal strength. Every stitch (both on the top and bobbin) should be as strong as possible since “a chain is only as strong as its weakest link.”

What about stretchy fabric?

Stretchy cloth makes it a little more difficult to create a good strong stitch.

For a flexible fabric, such as one made of spandex or elastane (often referred to as “Lycra”), the straight stitch cannot be used. The thread will rip if you use a straight stitch on elastic fabric because the cloth will stretch when you use a straight stitch. The fabric’s capacity to stretch will be reduced or eliminated altogether since a straight stitch has no give whatsoever.

The same logic applies to using a zigzag stitch on flexible fabric to prevent the cloth from ripping the thread as it is stretched. The zigzag stitch is suggested in this situation since the cloth might shift somewhat with each stitch.

However, the straight stitch is more resilient than the common zigzag. We must thus consider an alternative:

The triple tricot (zigzag) stitch:

triple zigzag

You may have seen the triple zigzag in boxers for men and other types of underwear since it is stronger and more stretchy than the standard zigzag.

What kind of sewing thread is the strongest?

We now understand that the strongest stitch we can use is the straight stitch. We’ll now examine the second component of a long-lasting outcome. the line.

Upholstery nylon is used to make the strongest threads. The unique resin coating on upholstery thread increases the strength. It is a manufactured item, as we will see below.

The chemical makeup of nylon is what makes it so much stronger. The connections between the objects are just incredibly strong at the molecular level. The molecules are large and closely packed. It provides us with a thread that will not break easily and has a very high tensile strength.

Nylon is a polymer, which is a kind of plastic. It’s not a natural substance, thus you can’t find it in the natural world. The materials used to make it are organic compounds, such coal or petroleum. When you heat it to a really high temperature, the outcome is just astounding.

Nylon 6-6 or 66 is another name for the most common type of nylon thread, which is composed of two molecules with six carbon atoms each.

A fun fact: Kewlar and Nomex are two more plastic kinds that have chemical properties with nylon. Kewlar, which we are familiar with from bulletproof vests and Nomex, is a fireproof fabric type utilized in race car suits and your own gloves.

For upholstery work, nylon thread is virtually usually utilized. You should use a UV-protected product for outdoor use to shield the colors from the sun. You may also get less expensive, less sun-resistant options for indoor usage. It is employed for tasks like those we previously mentioned in this article in addition to upholstery work (parachutes, seatbelts, tents, outdoor gear etc.).

Other strong threads

In addition to nylon, cotton also makes for incredibly strong strands. Tensile strength, which is frequently indicated on the box for various types of thread, is what you want to look at.

The following factors also impact a cotton thread’s strength:

  • The fiber type,
  • thickness
  • Quality of the cotton
  • and how it is made

If you don’t want to sew anything outside, such as a tent, kite, or furniture, you can be just fine with a regular cotton thread of good, solid quality. Make careful you select a thin thread, and everything should work well.

Sewing Fan

Sewing Fan

This blog is where we share sewing tips and inspiration. We love sewing, making, crafting and exploring our creativity. We are always learning new skills and techniques and would like to share our adventures with you all.

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