How are Jumbo Bag applied sewing technology?

Jumbo bags are made from woven polypropylene (PP). However, to create a packaging bag, it must go through many production stages. The most important stage is sewing the PP pieces to shape the packaging bag. Depending on each component and type of packaging bag, jumbo bags are applied different sewing technologies. In this article, EPP Vietnam will explore with readers the common sewing technology for packaging bags today.

What do you know about jumbo bags?

Polypropylene is the main material for making jumbo bags. This type of bag has a large load capacity and is used for packaging and storing many types of goods. PP bags are also widely used in the agricultural, aquatic, animal feed, and other food industries as packaging bags.

Materials for FIBC bags

This is the most consumed plastic on the market today. In the packaging industry, this material has become one of the most commonly used plastics.

Polypropylene is a polymer with a molecular formula of (C3H6)n. PP has properties depending on molecular weight and molecular weight distribution. In other words, depending on the molecular state and the arrangement of methyl (CH3) groups on each molecule, PP has different properties.

PP has a lower inertness than PE. It does not react with fats and organic solvents at room conditions except for oxidizing agents. When heated, PP can be dissolved in some non-polar solvents. PP is resistant to moisture, not affected by water, humidity. Moreover, the cost of the product is extremely affordable.

Advantages of using jumbo bags

Packaging plays an important role in maintaining the quantity and quality of products. The material used for food packaging must be safe and non-toxic. Especially, it should not accumulate or release toxic substances during the product preservation process.

For food grade jumbo bags, folding sewing technology must be used to hide the PP fabric edge inside. This technology will completely overcome the risk of fabric edges being torn and falling inside affecting the food.

How are jumbo bags applied sewing technology

A typical jumbo bag will be made into a finished product by an industrial sewing machine with different sewing lines. A sewing line is a combination of stitches that form connecting lines to connect two layers of fabric together. Sewing lines are widely used in the production of clothing, footwear, household textiles, and packaging. All are sewn using different types of industrial sewing machines.

Sewng lines have 3 main functions: assembling components, shaping details, and finally decorating the product. Similarly, jumbo bags also use sewing lines to assemble the components, shape the bag, and ensure its strength.

One needle crochet seam

The seam is created by a needle, forming self-locking loops under the material, then forming a complete sewing line. This is often used to sew the seams of packaging materials.

Two-needle chain stitch

To sew a four-thread overlock stitch, you only need two needles, one steel wrap thread, and one loop thread to create a loop below the material surface. This type of sewing is often used to sew the mouth of jumbo bags.

Two-thread overlock stitch

To create a blind hem stitch, the hemming needle is formed by a needle with thread and a loop thread wrapped around the edge of the material. The width of the blind hem stitch will have a stitch density of 1/8", 5/32", 3/16".

The above is an article sharing information about how are jumbo bags applied sewing technology. If you have any questions or needs about the product, please contact the address at the end of the article to receive direct consultation from the company

 

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