Why Do Plastic Woven Bags Use Sewing Thread for Sealing?

The Importance of Industrial Sewing Thread in Sealing Plastic Woven Bags

Plastic woven bags are indispensable for packaging products such as food, cement, chemicals, and animal feed. A critical step in their manufacturing process is sealing, which ensures the durability and functionality of these bags. This article explores why industrial sewing thread is the preferred sealing solution, based on insights from woven bag manufacturers.

What Makes Sewing Thread Essential for Woven Bag Sealing?

Sewing thread plays a crucial role in stitching and sealing woven bags after they are filled. Its strength, durability, and resistance to wear ensure that the bags remain secure, even under heavy loads or harsh conditions.

Types of Sewing Thread Used in Woven Bags

1. Civil Sewing Thread:
   Used for light-duty purposes, civil sewing thread is not suitable for the demanding conditions faced by plastic woven bags.
2. Industrial Sewing Thread:
   Specifically designed for heavy-duty applications like sealing plastic woven bags, industrial sewing thread is crafted from chemical fibers. Multiple yarn strands are twisted together to create a high-tensile, durable thread that ensures a tight and lasting seal.

Why Industrial Sewing Thread is Ideal for Sealing

• High Tensile Strength:
  Industrial sewing thread can withstand heavy loads without breaking, making it essential for securing the contents of woven bags.
• Resistance to Environmental Factors:
  This type of thread is durable in varying conditions such as moisture or temperature extremes, ensuring that the seal remains intact regardless of external influences.
• Efficiency:
  Industrial sewing threads work seamlessly with industrial sewing machines, facilitating mass production and ensuring consistent quality across batches.
• Cost-Effectiveness:
  While industrial sewing thread may initially seem more expensive than lighter alternatives, its durability and performance make it a cost-effective choice over time by reducing replacement costs and enhancing product reliability.

Applications Across Industries

The use of high-quality industrial sewing threads in woven bags spans multiple industries:

• Agriculture:
  Flour and feed bags require strong seals to prevent spillage and contamination during transport.
• Construction:
  Cement bags depend on robust sealing to maintain integrity under heavy loads and prevent moisture ingress.
• Chemical Packaging:
  Securely sealed bags are essential for safely transporting powders and granules in the chemical industry, where exposure to air or moisture can compromise product quality.

Conclusion

By using high-quality industrial sewing threads, manufacturers ensure that plastic woven bags are durable, functional, and reliable. The combination of high tensile strength, environmental resistance, and cost-effectiveness makes industrial sewing thread the ideal choice for sealing woven bags across various applications. As industries continue to rely on plastic woven bags for packaging solutions, the importance of using the right sealing materials cannot be overstated.