What Is The Role Of Industrial Sewing Machine Thread Tension?

Industrial sewing machine thread tension refers to the tensile force on the sewing thread during the sewing process, which is one of the most central technical aspects of the sewing process. Though invisible, thread tension is the core control parameter throughout the entire sewing process, which directly determines the sewing quality, efficiency and durability of the product.

Industrial sewing machine in the sewing process sewing thread tension according to the sewing material thickness, thin, soft, hard difference, sewing thread thickness and some other factors and often with the product or process changes and adjust accordingly, because the sewing thread (thread and bottom line) of the size of the tension of the formation of the shape of the seam has a decisive impact, in practice, is based on the sewing out of the seam to adjust the bottom and bottom line tension, until the self that the sample seam out of a beautiful, beautiful, and durable, and the bottom line tension. In practice, you should adjust the tension of the bottom and top threads according to the sewn seam until you are satisfied that the sewn sample seam is beautiful and neat, and meets the product quality requirements.

The influence of thread tension on the sewing process:

• Directly affect the sewing quality

1.Preventing skipped stitches and thread breakage

Excessive tension: The upper or lower thread is overstretched and easily broken or frayed.

Too little tension: the bobbin cannot catch the thread loop stably when hooking the thread, resulting in skipping or stitch breakage.

2.Stitch uniformity

When the tension is balanced, the upper and lower threads are interwoven in the middle of the fabric, and the stitching is smooth, beautiful and free of floating threads.

Uneven tension will result in loose (insufficient tension) or tight (too much tension) stitches, or even skewed or twisted stitches.

3.Fabric Adaptability

Thin materials (e.g. silk, chiffon): too much tension will pull the fabric, resulting in wrinkles or distortion.

Thick materials (e.g. leather, denim): insufficient tension will result in loose stitching that cannot penetrate through multiple layers of fabric.

• Impact on productivity and cost

1.Reduce rework rate

Inaccurate tension will lead to frequent wire breakage, skipping and other problems, requiring downtime to adjust or rework, reducing production efficiency.

2.Extend equipment life

When the tension is too high, the friction of the sewing thread on the bobbin, needle plate, thread clamp and other parts increases, accelerating the wear and tear of the parts.

• Adapt to different materials and process needs

1.Sewing thread material differences

Chemical fiber thread (e.g. polyester): lower tension requirements (smooth surface, easy to slide).

Natural threads (e.g. cotton): higher tension requirements (high friction, easy to lint).

• Special process requirements

1.Decorative stitching (e.g. pearlescent embroidery thread): the tension needs to be reduced to avoid thread breakage or glossy damage.

Functional stitching (e.g. seat belts, tents): the tension needs to be greatly increased to ensure the tensile strength of the thread.

All in all, sewing equipment in the future market needs standardized, environmentally friendly, energy-saving, mechatronic machinery, in this regard, KINGMAX has been committed to provide customers with efficient and convenient industrial sewing machine services, sewing machinery technology is steadily rising, to produce products that can meet the market demand and capture the market. If you have any request for Kingmax industrial sewing machines, please feel free to contact us.