Snag
Snagging is a phenomenon in which threads or stitches in a textile catch on protrusions or similar objects, causing threads to be pulled out or loops to pop up and damaging the surface appearance.
Contents6 sections
Definition and Overview
Snag is an appearance defect that occurs when threads on the surface of a textile catch on protrusions while being worn or washed. It appears as pulled-out threads, popped-up loops, or streak-like distortion, and in knitted fabrics it may be accompanied by shifted stitches.
It can occur in both woven and knitted fabrics, but it is more noticeable in constructions with floating threads or loops on the surface, textiles made with fine threads, and loosely knitted textiles. Snag is a term referring to a quality and handling phenomenon, not a fabric name or material name.
Characteristics and Effect on Appearance
When snagging occurs, thread ends or looped threads appear on the surface, disrupting smoothness and the way the pattern looks. On dark colors, glossy textiles, and textiles with little surface texture, even a slight pull on a thread can stand out.
If the snagged area is pulled hard, the damage may spread to the surrounding area. In knits, loops may move like a run, and even in woven fabrics, streaks or pulling may remain due to displaced warp or weft yarns.
Main Occurrence Scenarios and Application Considerations
Contact with bag hardware, hook and loop fasteners, accessories, rough walls, or furniture is a major cause of snagging. During washing, hard accessories such as zippers and hooks may also cause snags by contacting other garments.
Attention is needed across all applications, from everyday wear to sportswear, knit products, and dresses. In particular, for items that experience a lot of friction or contact during exercise, outdoor activities, or carrying loads, the structure of the textile surface should be checked with the wearing environment in mind.
Selection and Handling Precautions
When selecting a textile, inspect not only the swatch but also the actual surface by rubbing it lightly to check thread float tendency, loop stability, and how it looks after catching. As needed, it is important to conduct testing and evaluation that includes the intended accessories and washing conditions.
In sewing, damage to the sewing needle, feed dogs, or presser foot, and protrusions on the worktable can cause catching. During processing, inspect contact surfaces and check whether any exposed thread can be smoothed to the back side without cutting it. Depending on the condition, repair may be difficult, so it is important not to pull forcefully.
During washing, closing zippers, separating garments with hard accessories, and using a laundry net can reduce contact. Shrinkage is not snagging itself, but changes in dimensions and surface appearance after washing should also be handled according to the care label.
Differences from Similar Terms
Pilling is a phenomenon in which raised fibers become tangled through friction and form pills. In contrast, snagging refers mainly to a phenomenon in which threads or loops are pulled out by catching. Both can be seen on the same product, but the cause and appearance are different.
Fabric defects is a broad general term that includes weaving defects, knitting defects, stains, and more. Snag is treated as a type of damage caused by catching that can occur after production and also during distribution or wear.
Frequently Asked Questions
Can the thread from a snag be cut?
If the protruding thread is cut, the structure in that area may unravel, or a hole or run may spread. First, do not pull it, and if possible, use a thin needle or similar tool to move the thread to the back side and blend it into the surrounding area. The repairability depends on the textile type and the extent of the damage, so if it is noticeable, consulting a specialist should also be considered.
Is there anything that can be done during washing to prevent snagging?
The basics are to close garment zippers, hooks, and hook and loop fasteners, and wash items separately from garments with easy-catching accessories. Turning garments inside out and placing them in a laundry net also helps reduce contact. However, the appropriate washing method varies depending on the material and product specifications, so the care label should always take priority.
