Polypropylene woven bag

Detailed product information about polypropylene woven bag

Product name: Polypropylene woven bag for packaging sugar, rice, flour, animal feed, and fertilizer

Material: 100% virgin PP

Color: Green, red, yellow, according to customer requirements

Printing: No printing

Width: According to customer requirements

Length: According to customer requirements

Weight: 200 g, 30…...

Capacity: 25 kg, 50 kg, 76 kg, 100 kg….

Top opening: Heat-cut, hemmed, or sewn

Bottom: Single fold, double fold, or single stitched

Applications of polypropylene woven bags

Application: These are durable, breathable, and cost-effective bags, ideal for packaging agricultural products such as grains, beans, seeds, and sugar, as well as various products such as sand, animal feed, chemicals, cement, metal components, etc.

Packaging: 100 pieces/bundle, 1,000 pieces/bale, or according to customer requirements

Delivery time: 7–14 days depending on the order

Polypropylene woven bag production process

The production process of PP woven bags includes the following stages:

1. PP yarn production

Workers feed PP resin pellets into the hopper of the yarn-making equipment. The plastic pellets are drawn into the extruder, where they undergo heating and melting. The extrusion screw pushes the molten plastic through the die, with the length and width adjusted according to requirements.

After heating, the plastic film is formed and then passed through a water bath for cooling and shaping. The film is then slit into yarns with a width of 2–3 mm. The yarns are subsequently heat-treated for stabilization before being wound according to the required yarn specifications. Yarn waste is cut, crushed, and fed back into the extruder.

2. PP fabric weaving

After the PP yarn is produced, the yarn rolls are fed into a 6-shuttle circular loom. The yarns are woven into tubular fabric and wound into PP fabric rolls.

3. PP fabric lamination

For PP woven bags that require lamination, a forklift is used to transport the PP fabric roll onto the lamination machine. A 30-thick PP coating is then applied to improve bonding. After rewinding, the PP fabric roll is sent for printing. This process helps improve the appearance of PP woven bags.

4. Printing on woven bags

There are various technologies for printing on PP woven bags. OPP film lamination is commonly used because it is simple and cost-effective.

5. Finished product cutting and packaging

Finally, the PP woven fabric roll passes through the side-folding and cutting system to create finished products. The bags can be sewn before printing or printed before sewing. At the end of the process, the finished products pass through an automatic counting conveyor for bale packaging and are inspected again before being transferred to the warehouse.

Frequently asked questions

Q1: Are you willing to provide samples?

We are happy to provide samples. Samples available in stock are free of charge; new customers only need to pay the express delivery fee.

Q2: What about the quality of your products and services?

We can ensure high-quality products at competitive prices. Good service is the foundation of long-term cooperation. We hope to work closely with our customers based on equality and mutual benefit, developing together and achieving mutual success.