1. Introduction to Bag Sewing Thread
Bag sewing thread is a specialized thread used to sew packaging such as sacks, agricultural bags, animal feed bags, chemical bags, and other industrial products. To ensure the best strength and protection for the product inside, bag sewing thread needs to have high durability, reasonable elasticity, and resistance to abrasion and environmental conditions
2. Characteristics of Bag Sewing Thread
Bag sewing thread has some outstanding features that make it suitable for the requirements of industrial packaging sewing:
High durability: Bag sewing thread is often made from strong fibers such as polyester, polypropylene, or nylon, which helps increase durability to withstand pressure and large loads.
Abrasion resistance: Bag sewing thread must withstand abrasion during transportation and rubbing. The fibers used for bag sewing thread are often resistant to abrasion and breakage when impacted.
UV protection: Some types of sewing threads are supplemented with UV protection to protect the durability of the packaging when exposed to sunlight.
Elasticity and flexibility: To adapt to different materials, sewing threads must have a certain elasticity and flexibility for easy sewing, ensuring even and unbroken seams.
3. Common Types of Sewing Threads
Based on the material, sewing threads are divided into the following main types:
PP (Polypropylene) thread: The most popular type of thread for sewing packaging due to its low cost, light weight and good moisture resistance. However, the tensile strength of PP thread is not as high as that of polyester thread.
Polyester thread: This type of thread has high durability and abrasion resistance, often used to sew packaging that requires high durability such as fertilizer bags, chemicals, or cement bags. Polyester also has better UV resistance, helping the packaging not be affected when left outdoors.
Nylon Thread: With high tensile strength and good elasticity, nylon thread is often used to sew heavy and heavy-duty product bags. However, the price of nylon is often higher than PP and polyester.
4. Applications of Bag Sewing Thread in Industry
Bag sewing thread has many applications in different industrial fields:
Agricultural industry: Bag sewing thread is often used to sew bags for rice, corn, coffee, and other agricultural products.
Animal feed industry: Bag sewing thread is used to sew bags for animal feed, poultry, and aquatic products. The thread usually needs to have good durability and moisture resistance to preserve food for a long time.
Chemical and fertilizer industry: Chemical and fertilizer packaging requires bag sewing thread with high durability and high load-bearing capacity to avoid tearing and breakage during transportation.
Construction industry: Bag sewing thread is also used in the production of cement bags, lime, and construction-related products.
5. How to Choose the Right Bag Sewing Thread
When choosing bag sewing thread, you need to pay attention to the following factors:
Nature of the product contained in the bag: For example, for heavy products or products that require long-term storage, you should choose polyester or nylon thread instead of PP.
Storage and transportation conditions: If the product must be left outdoors regularly, polyester thread is the best choice because of its UV resistance and high durability.
Packaging size and type: For large bags, you need a strong thread to sew, to ensure that the product does not burst or tear during transportation.
6. Suitable Bag Sewing Machines
To sew bags quickly and effectively, specialized bag sewing machines are necessary. Popular bag sewing machines include 1-needle industrial bag sewing machines and 2-needle bag sewing machines, automatic bag sewing machines, programmable sewing machines, etc. These machines are designed to sew different types of packaging, from small to large industrial bags, ensuring beautiful, sturdy seams and fast sewing speed.
Bag sewing thread is an important factor in ensuring the strength and safety of industrial packaging. Choosing the right type of bag sewing thread for your needs will help increase production efficiency, minimize the risk of damage, thereby optimizing costs and time for businesses.
