Subscribe

Learn About Construction Of Sewing Threads!: 5 Main Types Explained

July 24, 2026 A thorough guide on sewing thread construction

Threads are the heart of sewing! Without them, each project is incomplete. In previous articles, we discussed types of sewing threads. But today, I am going to tell you about how they are made.

When I was in the sewing course after my schooling, the coaches had sessions on these topics. They had also given assignments to research and collect threads according to different formations. I had a really good time while practically exploring threads!

Here, we will explore the same core construction of sewing threads. We will see thier types and uses. So, if you are an aspiring sewist or tailor, you will get to know many interesting aspects of these colorful yarns via this article!❤️

What Is Thread Construction?

Have you ever handled threads with more lint? Or, has your thread ever broken while sewing? 

If yes, it means you may have used low-quality thread. The structure of these threads determines their quality and longevity. 

Thread construction is nothing but the internal anatomy of a thread. It tells us how the thread is made, how strong and durable it is, etc. 

5 Main Types Of Thread Construction:

1. Spun:

Have you ever untwisted cotton or wool thread?

That twisting is nothing but spun! 

Short staple threads are twisted together to form a continuous strand. Such threads are called spun threads.

Spun cotton is less elastic than polyester. But both show excellent matte finish and tenacity. 

On the other hand, the spun polyester threads are way more durable. They don’t shrink like cotton.

2. Filament: 

They are continuous strands of synthetic fibers such as nylon, polyester, and silk. Their name indicates their properties- soft, smooth, and lustrous!

Here is the main difference between staple yarn and filaments:

These filament threads have two main types:

2.1. Monofilament:

It is a single (mono) strand of thread. 

Even though it is single, it is translucent, durable, and strong.

2.2. Multifilament:

As the name says, it is a bunch of filament threads twisted in the Z’ or S direction. 

It is more flexible and durable than monofilament. It is used in sewing activewear, rainwear, and industrial wear for longevity.

3. Corespun:

High strength! Great tenacity! Long durability!

Yes! These threads are stronger than core spun threads. Mostly, spun cotton or polyester staple fibers are wrapped around the continuous polyester filament core to form the corespun thread bundles.

Their matte finish and soft texture make them aesthetically elegant! Plus, their wrappings keep heating away. That’s why they are ideal for fast sewing projects.

Apart from stitching garments, such threads are also used in sewing workwear, leather goods, and industrial items.

4. Textured:

Some of you may know them as ‘texturized threads’. We often use them as a loop thread on sergers.

Texture enhances the volume and stretchability of the thread yarn. Mostly polyester and nylon thread yarns are used to make such threads. 

But Wait. How Do They Make Textured Thread?

It is similar to how we curl hair with curling irons. Smooth filament thread fibres are twisted and treated with specific heat. Then they are untwisted to get that specific spring-like coiled texture. 

Due to their specific looped structure, these threads feel fluffy and soft. They also show excellent thermal insulation and edge-sealing properties. They are often used in making activewear. Their fibres can stretch without snapping.

5. Bonded:

Many monofilaments are bunched and coated with special resin, adhesive, or polymers. 

They are so strong that they hardly fray or split during high-speed sewing. Due to their high durability, they are used to sew leather items like saddles, belts, shoes, etc.

In outdoor gear, they are used to sew tents, parachutes, backpacks, etc.  

Key Takeaways:

I hope this guide on sewing thread construction has given you helpful insights to acknowledge these yarns. Their inner core determines thier strength, functioning, and longevity.

So, choose the thread according to your sewing needs and stitch those sassy outfits! Whether it is spun, corespun, filament, textured, or bonded, each thread construction is special in thier own way.

If you need more help with this, you can email me directly. I will guide you in depth!

FAQs:

1. What Makes Bonded Thread Special?

Thier resin coating makes them stronger. Their stitches do not fray or unravel. They can be used in sewing heavy-duty clothes.

2. Which Are Textured Threads?

Woolly nylon, textured polyester, seamsoft (a kind of microfilament polyester), etc., are the famous examples of textured threads. They are soft, fuzzy, and stretchy.

Related posts

Determined woman throws darts at target for concept of business success and achieving set goals

Leave a Comment