Understanding Multiwall Laminated Woven Bags: Production Process and Technological Advancements

In the packaging industry, Multiwall Laminated Woven Bags are increasingly recognized for their versatility, strength, and protection capabilities, especially for industries such as agriculture, construction, and chemicals. These bags are engineered for durability and are designed to handle demanding packaging requirements, providing efficient solutions for both storage and transport. At VidePak, we specialize in manufacturing high-quality Multiwall Laminated Woven Sacks using state-of-the-art technology and a meticulous production process. This article delves into the production of Laminated Woven Bags, focusing on the critical stages of extrusion, weaving, lamination, printing, and bag making, with a particular emphasis on the advanced equipment used in our production facilities, sourced from globally recognized suppliers such as Starlinger and W&H.

For more insights into the world of Multiwall Laminated Woven Bags, visit our article on Laminated Woven Bags.

The Production Process of Multiwall Laminated Woven Bags

The production of Multiwall Laminated Woven Bags is a multi-step process that involves precision and quality control at each stage. This process integrates advanced technologies to ensure that each bag meets the highest standards of durability and performance.

1. Extrusion and Filament Production

The first step in manufacturing Multiwall Laminated Woven Bags begins with extrusion, where raw polypropylene (PP) pellets are melted and extruded through a die to form continuous filaments. These filaments are then cooled and stretched to create a fine, strong polypropylene yarn. The yarn’s tensile strength is crucial as it forms the foundation of the woven fabric, which will later become the bag’s body. At VidePak, we use high-performance extrusion lines, such as those supplied by Starlinger, which are known for their efficiency and precision.

Table 1: Key Parameters of the Extrusion Process

ParameterSpecification
Extruder TypeSingle screw, twin screw
Output Rate250-800 kg/h
Yarn Diameter0.14mm to 0.28mm
Material Type100% virgin polypropylene
Technology ProviderStarlinger, W&H

These extrusion lines allow for the production of strong, uniform filaments, ensuring the woven fabric will have consistent properties, such as strength, flexibility, and durability.

2. Weaving the Fabric

After the filaments are produced, they are fed into circular looms, where they are woven into fabric. This fabric is the core material used in Laminated Woven Bags. The weaving process creates a grid-like pattern that enhances the strength and load-bearing capacity of the final product. The looms at VidePak are equipped with advanced weaving technology from Starlinger, which ensures high-speed production while maintaining fabric consistency and quality.

The type of weave used in the process plays a significant role in the overall strength and flexibility of the Multiwall Woven Bags. In general, the tighter the weave, the better the protection it offers against external factors such as moisture, dirt, and puncturing.

3. Lamination and Coating

Once the woven fabric is prepared, it undergoes the lamination process. This step involves applying a layer of polyethylene (PE) film to the woven fabric, which is achieved through extrusion coating. This PE layer significantly enhances the durability of the bag, making it resistant to moisture, dust, and contaminants, which is especially important for packaging materials like chemicals, fertilizers, and food products.

Lamination also adds a layer of stiffness to the Multiwall Laminated Woven Bags, which helps the bags maintain their shape during storage and transport. The lamination process at VidePak is carried out using advanced machines from W&H, which are known for their high efficiency and precise coating capabilities.

4. Printing and Customization

To make Laminated Woven Bags more visually appealing and ensure brand recognition, printing is often applied to the surface of the bag. This can include logos, product details, barcodes, and other marketing materials. At VidePak, we use advanced flexographic printing presses, which are capable of printing high-quality images and text on the laminated surface without compromising the bag’s structural integrity.

Our printing capabilities are further enhanced by state-of-the-art machines, such as those from Starlinger, ensuring that we can offer high-quality, multi-color prints that are durable and do not fade easily over time.

Table 2: Key Printing Parameters

ParameterSpecification
Print TechnologyFlexographic printing
Number of ColorsUp to 8 colors
Print Resolution1200 dpi
DurabilityUV-resistant, scratch-resistant
Machine ProviderStarlinger, W&H

5. Bag Making and Final Inspection

The final step in the production of Multiwall Laminated Woven Bags is bag making. The laminated woven fabric is cut and sewn or heat-sealed into the desired bag shape. The bag is then tested for defects, ensuring that it meets the highest standards of quality. At VidePak, we use cutting-edge bag-making equipment to provide precise stitching and seamless sealing, which ensures that the bags are both strong and leak-proof.

Final inspection includes checking for defects in stitching, lamination, and overall strength. Each bag undergoes rigorous quality control to ensure that it performs as expected under real-world conditions.

6. Packaging and Delivery

Once the Multiwall Laminated Woven Bags have passed quality control, they are packed and prepared for shipment. The bags are typically folded and stacked in bulk, ready for transportation to clients across the globe. With our efficient packaging and delivery systems, VidePak ensures that every order is delivered on time and in perfect condition.

Why Choose VidePak for Laminated Woven Bags?

At VidePak, we prioritize quality, innovation, and customer satisfaction. Our use of state-of-the-art equipment from renowned global suppliers like Starlinger and W&H ensures that we produce the best possible Multiwall Laminated Woven Bags for our clients. Whether you need bags for agricultural, industrial, or retail applications, VidePak provides customized solutions that meet your specific needs.

We offer a wide range of Multiwall Laminated Woven Sacks with various customization options, including size, color, print designs, and bag types. Our expertise in Laminated Woven Bags manufacturing ensures that we meet international standards for performance and quality, making us a trusted partner for businesses worldwide.

For a more in-depth look at our manufacturing processes and products, explore our Laminated Woven Bags article.

Conclusion

In conclusion, the production of Multiwall Laminated Woven Bags involves a complex yet precise process that requires advanced technology and expert craftsmanship. At VidePak, we leverage the latest innovations in extrusion, weaving, lamination, printing, and bag making, all while using top-tier equipment from suppliers like Starlinger and W&H. This ensures that we deliver high-quality bags that meet the demanding needs of industries worldwide. Whether you are in the agricultural, chemical, or construction sector, VidePak’s Laminated Woven Bags provide reliable, durable, and customizable packaging solutions that you can trust.

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