Quick answer: Biodegradable bags run on the same heat-sealing bag machines that run LDPE — the difference is three settings, not a different machine: a lower sealing temperature, a slower line speed, and film that carries its own compostability certificate (EN 13432 or ASTM D6400). For T-shirt and shopping bags, VTB High speed T-shirt bag making machine runs 30–300 pcs/min on 0.008–0.05 mm film at up to 520 mm bag width. For roll bags, VBM-R Roll Bag Making Machine runs up to 200 pcs/min at 450/550 mm bag width on 0.01–0.1 mm film. Bag size, film thickness and target output are what pick the model — not the resin.
With rising environmental concerns and increasing regulatory changes, the demand for biodegradable plastic bags is growing rapidly. This has opened up new opportunities for manufacturers to enter the market with innovative solutions. One critical aspect of starting a biodegradable plastic bag manufacturing business is investing in the right machinery. VIE Machinery supplies plastic bag making machines matched to biodegradable film production — from entry units to full lines. In this article, we will explore various biodegradable plastic bag making machines, their prices, and features, as well as provide insights on how to start a manufacturing plant.
Understanding Biodegradable Plastic Bag Making Machines
Types of Machines
The bag you are selling picks the machine, and each of these runs compostable film inside its own thickness window:
- T-shirt and shopping bags — VTB High speed T-shirt bag making machine: 30–300 pcs/min, bag width 420/520 mm, film 0.008–0.05 mm.
- Roll bags (bin liners) — VBM-R Roll Bag Making Machine: up to 200 pcs/min, 450/550 mm bag width, film 0.01–0.1 mm.
- Three-side seal bags — VZB Three-side sealing Bag Making Machine: 150 cuts/min on 400/500/600 mm material, with sealing stations adjusted individually — which is what compostable film needs most.
- Bottom-seal carry bags — VBS Bottom sealing bag making Machine: 240–260 pcs/min, 350–800 mm.
A bin liner and a shopping bag can be the same machine if width and handle station match; a compostable bag is the same machine run cooler and slower. What you cannot skip is the certificate for the film, because the bag inherits it from the film, not from the machine.
What Actually Changes on Biodegradable Film
Compostable resins seal in a narrower temperature band than LDPE and stretch less, so the settings move before the output does: lower sealing temperature, slower line speed, and cooling time built into the cycle. Manual and semi-automatic units exist, but on compostable film the reject rate at the sealing station decides the economics — a bad seal cannot be re-welded, so a machine that holds temperature separately at each station usually earns back the labour line.
Key Features
Production Capacity
The production capacity of a machine is a crucial factor to consider. It determines how many bags can be produced within a given time frame. Machines with higher production capacities are suitable for large-scale operations, while smaller capacities may suffice for small to medium-sized enterprises.
Automation Level
Automation plays a significant role in the efficiency of the manufacturing process. Fully automatic machines require less manual intervention and can operate continuously, leading to higher productivity. On the other hand, manual and semi-automatic machines might require more labor but come at a lower initial cost.
Energy Efficiency
Energy-efficient machines can help reduce operational costs. Look for machines with energy-saving features or certifications that indicate lower power consumption. This can contribute to both cost savings and environmental sustainability.
Starting a Biodegradable Plastic Bag Manufacturing Plant
Initial Investment
Starting a biodegradable plastic bag manufacturing plant requires a substantial initial investment. Budget is set by how many of the four production stations you own. Buying converted film from a converter removes the blown-film line and roughly halves the floor space; extruding your own film adds that line but lets you set resin, thickness and colour at the roll stage. Outside machinery, the budget covers film and ink stock, consumables (blades, sealing elements, release film), a 380 V / 50 Hz supply sized to the installed power of the machines above, and working capital through the first production runs. It is essential to conduct a thorough cost analysis and create a detailed business plan before making any investments.
Location and Infrastructure
Choosing the right location for your manufacturing plant is crucial. It should be easily accessible for transportation of raw materials and finished products. Additionally, the infrastructure should support the machinery and production processes, including adequate space, power supply, and ventilation.
Compliance and Certifications
Ensure that your manufacturing plant complies with local regulations and environmental standards. Obtain necessary certifications and permits to operate legally. This not only helps in avoiding legal issues but also builds trust with customers and stakeholders.
FAQ
What are biodegradable plastic bags made of?
Biodegradable plastic bags are typically made from natural materials such as cornstarch, cassava, or other plant-based polymers. These materials break down more easily in the environment compared to traditional plastics.
How long does it take for a biodegradable plastic bag to decompose?
The decomposition time for biodegradable plastic bags can vary based on the material used and environmental conditions. Generally, they can decompose within a few months to a couple of years, unlike traditional plastics that can take hundreds of years.
Are biodegradable plastic bags more expensive than regular plastic bags?
Yes, biodegradable plastic bags are generally more expensive than regular plastic bags due to the higher cost of raw materials and production processes. However, the environmental benefits and regulatory compliance make them a worthwhile investment.
Can biodegradable plastic bags be recycled?
Biodegradable plastic bags are not typically recycled through conventional recycling streams. They are designed to break down naturally and are best disposed of in composting facilities or through methods that support biodegradation.
What are the benefits of using biodegradable plastic bags?
Using biodegradable plastic bags helps reduce plastic pollution, conserves resources, and supports environmental sustainability. They are also compliant with many regulatory requirements aimed at reducing plastic waste.
What warranty and after-sales support comes with the machine?
Every VIE machine carries a 2-year warranty counted from the date the machine arrives, excluding normal wear parts, plus lifetime technical support. An engineer can be sent for on-site installation and commissioning. Lead time is 7–45 days depending on the machine type.
Conclusion
Investing in biodegradable plastic bag making machines and starting a manufacturing plant can be a lucrative business opportunity, especially with the growing demand for eco-friendly products. By understanding the different types of machines, their features, and the initial investment required, you can make informed decisions to set up a successful manufacturing operation. Remember to comply with local regulations and prioritize sustainability to build a reputable and profitable business.
Bag size, film thickness and target output are what decide the machine — send them on our contact page and we will reply with a machine recommendation.
