Snagging fabric Explained: What it is, Causes and How to Fix Snagging in Fabric

Snagging fabric is a common issue that occurs on fabrics when they come in contact with rough surfaces or sharp objects. Snag affects the garment’s appearance and durability. The snag resistance of a fabric is determined under the ASTM D3939 standard using the Mace Snag Tester.

Contents hide

1 Understanding Snagging in Fabrics

1.1 What is Snagging in Fabric and Why Does it Happen?

1.2 Types of Fabrics Most Vulnerable to Snags

2 Common Causes and Everyday Triggers of Snags

2.1 Environmental and Wear-Based Factors

2.2 Garment Construction and Fiber Types

3 How Snags Affect Your Clothing and Appearance?

3.1 Can Losing a Thread Make Clothes Looser?

3.2 The Long-Term Impact of Unattended Snags

4 How to Fix a Snag in a Fabric?

5 Conclusion

6 FAQs

6.1 What is fabric snagging, and why does it happen?

6.2 How to handle and wash snag-prone garments?

7 Related Resources

Understanding Snagging in Fabrics

What is Snagging in Fabric and Why Does it Happen?

The formation of loops on the fabric surface due to broken yarns is called snags. This happens due to displacement of yarns from the fabric’s surface in case of contact with sharp objects, rough surfaces, or abrasion during wearing & washing.

Snags in fabric may occur due to exposure to jewelry, seatbelt friction, or zippers. Snagging in fabric is common in those fabrics that are made from filament yarns or loosely knitted fabric structures.

Snags on fabric not only look bad but also weaken the fabric. For example, polyester knitwear tends to snag due to abrasion from a chair or a handbag after a few wears.

Types of Fabrics Most Vulnerable to Snags

Snagging in fabric mostly occurs in synthetic fabrics like polyester, nylon, or acrylic. These fabrics are lightweight and have smooth filament yarns. Such fabrics are used in sportswear, linings, and women’s blouses.

The fabric pull occurs due to the dragging out of yarn, which entangles with itself and forms a loop or tiny balls called pills. Snagging in fabric causes pilling. Knitted fabrics are more prone to snagging due to their open construction.

On the other hand, tightly weaved fabrics have better resistance to snagging compared to knitted fabrics. According to AATCCC research, the smooth synthetic filament yarns and open-knit patterns cause fabric snagging issues.

Common Causes and Everyday Triggers of Snags

Environmental and Wear-Based Factors

The contact of fabric with a rough surface, a sharp object, or a textured surface causes snagging in fabric.

For example, when you brush clothes through rough surfaces like Velcro, zippers, or coarse furniture, the tiny hooks or edges of such surfaces entangle with the loop or yarn of the fabric. After that, the pulling action takes out the fibers from the fabric’s structure, which causes a snag.

Environmental conditions like dry air in winter can increase the electrostatic charge in fabrics. The static charge build-up makes clothes stick to each other or your body. This thing increases the risk of threads catching on sharp objects, leading to snagging.

Due to wear-based factors and environmental conditions, snags are more likely to occur in synthetic fabrics like polyester or nylon.

Garment Construction and Fiber Types

Snag on fabric depends on the fabric type and the weaving structure. For example, polyester jerseys or nylon hosiery are prone to snag due to their loosely woven structure. Knit fabrics have loops or open construction that can easily catch sharp objects and suffer from snagging.

Synthetic fibers like polyester or acetate have long filaments, which lack in strength compared to short natural fibers. Poor stitching and loose seams are also the reasons for snagging in fabric.

How Snags Affect Your Clothing and Appearance?

Can Losing a Thread Make Clothes Looser?

Its answer depends on the fabric’s type and weaving structure. Knit fabrics are made of loops that are interlocked with each other. So, if a snag pulls the loop out from the fabric structure, then it may affect the shirt’s stretch and fit.

The area of the knit fabric from where the loop is pulled becomes loose, and its shape is distorted. For example, a pulled loop from a stretch T-shirt may cause puckering or a misshaped neckline.

In contrast, woven fabrics show more stability compared to knit fabrics due to their warp and weft weaving structure. The pulled thread will not directly affect the fabric’s stability; however, it will weak the fabric strength structurally and visually.

The Long-Term Impact of Unattended Snags

Snagging fabric may look minor, but if left unrepaired, it can lead to more severe damage over time. Yarns are pulled out from the fabric, which exposes it to wear further. The small fibers tend to entangle with each other to form pills.

The washing and abrasion can cause snagging, which will lead to the formation of holes or fraying edges in the snag fabric. Proper care and repairing of snags are essential to maintain fabric durability and appearance.

For example, if a polyester jacket lining has a snag, then it may spread with movement, which will affect the jacket’s lifespan and comfort. The snag resistance of a fabric is determined under the ASTM D3939 standard using the Mace Snag Tester.

How to Fix a Snag in a Fabric?

Knit fabrics are made up of yarn loops. So, when a snag occurs, the best way to fix the snag in the fabric is to pull the snagged loop back to its position in the fabric structure. For this, turn the sweater inside out.

Now use the blunt needle or crochet hook to pull the snag back to its original position gently. This prevents the loop from again snagging. After that, stretch the fabric to redistribute the tension across the surrounding loops to smooth the surface.

This method is commonly used for medium to thick knit fabrics. If you are learning how to fix snags in the fabric, especially delicate fabrics like wool, then avoid cutting threads. It will cause to unravel the other loops.

Conclusion

Snagging fabric is a common issue that occurs on the fabric surface due to friction with rough surfaces or contact with sharp objects. Snagging is common in those fabrics that are made from filament yarns or loosely knitted fabric structures.

The snag resistance of a fabric is determined under the ASTM D3939 standard using the Mace Snag Tester. Proper care and repairing of snags are essential to maintain fabric durability and appearance.

FAQs

What is fabric snagging, and why does it happen?

The formation of loops on the fabric surface due to broken yarns is called snags. This happens due to displacement of yarns from the fabric’s surface in case of contact with sharp objects, rough surfaces, or abrasion during wearing & washing.

How to handle and wash snag-prone garments?

To protect the snag-prone garments, always wash them by turning them inside out, using a gentle cycle with a mesh laundry bag, and avoid washing with items like zippers or Velcro. After washing, dry open air instead of using a dryer.