Hey there! I’m a supplier of biodegradable plastic tubes, and I’m super excited to walk you through the production process of these amazing eco – friendly products. Biodegradable Plastic Tubes

Step 1: Raw Material Selection
The first step in making biodegradable plastic tubes is choosing the right raw materials. Unlike traditional plastics that are made from petroleum – based products, biodegradable plastics are derived from natural sources. We usually use materials like polylactic acid (PLA), polyhydroxyalkanoates (PHA), and starch – based polymers.
PLA is one of the most common materials. It’s made from lactic acid, which can be fermented from renewable resources such as corn starch, sugarcane, or cassava. PHA, on the other hand, is produced by microorganisms. These bacteria convert various carbon sources into PHA polymers that can be used for plastic production. Starch – based polymers are also great because they’re made from abundant and renewable starch, often from potatoes or wheat.
We source these raw materials from reliable suppliers who follow strict environmental and quality standards. This ensures that our biodegradable plastic tubes are not only good for the environment but also meet high – quality requirements.
Step 2: Mixing and Compounding
Once we have the raw materials, we move on to the mixing and compounding stage. This is where we combine different polymers and additives to get the desired properties for the plastic tubes.
Additives are used for various purposes. For example, we might add plasticizers to make the plastic more flexible. Antioxidants are added to prevent the plastic from degrading too quickly during the manufacturing process. And colorants are used if we need to give the tubes a specific color.
The raw materials and additives are fed into a mixer, where they’re heated and blended together. The temperature and mixing speed are carefully controlled to ensure a homogeneous mixture. This compounded material is then extruded into small pellets, which are much easier to handle and store for the next steps.
Step 3: Extrusion
Extrusion is a key process in making biodegradable plastic tubes. The pellets we made in the previous step are fed into an extruder. An extruder is a machine that has a screw – like mechanism inside a heated barrel.
As the pellets are fed into the extruder, the screw rotates, pushing the material forward. The heat from the barrel melts the plastic pellets, turning them into a molten state. The molten plastic is then forced through a die, which is a specially shaped tool. For tube production, the die has a circular opening in the center, which gives the plastic its tubular shape.
The speed of the screw and the temperature of the extruder are crucial factors that determine the quality and dimensions of the tubes. We constantly monitor these parameters to make sure the tubes have the right thickness, diameter, and surface finish.
Step 4: Cooling
After the tubes are extruded from the die, they’re extremely hot and soft. We need to cool them down quickly to set their shape. This is done by passing the tubes through a cooling tank filled with water.
The water in the cooling tank absorbs the heat from the tubes, causing them to solidify. The length of the cooling tank and the water temperature are carefully adjusted to ensure uniform cooling. If the tubes cool too quickly, they might develop internal stresses, which can lead to cracks or other defects. On the other hand, if they cool too slowly, the shape might deform.
Step 5: Cutting
Once the tubes are cooled and solidified, we cut them into the desired lengths. This is a relatively simple process, but it requires precision. We use cutting machines that are programmed to cut the tubes accurately to the specified length.
The cut tubes are then inspected for any visible defects, such as rough edges, irregular shapes, or surface scratches. Tubes that pass the inspection are ready for the next stage of processing, while those with defects are either discarded or re – processed.
Step 6: Printing and Labeling (Optional)
If our customers require printed information or labels on the tubes, we perform this step. We use eco – friendly printing inks that are compatible with biodegradable plastics.
The printing process can be done using various methods, such as screen printing or flexographic printing. Screen printing is a popular choice for smaller production runs, as it allows for detailed and high – quality printing. Flexographic printing, on the other hand, is more suitable for large – scale production due to its high – speed capabilities.
We work closely with our customers to ensure that the printed design meets their requirements, including colors, fonts, and logo placement.
Step 7: Quality Control
Quality control is an essential part of the production process. We have a strict quality control system in place to ensure that every biodegradable plastic tube we produce meets the highest standards.
We conduct various tests on the tubes, including dimensions, thickness, strength, and biodegradability. For example, we use measuring tools to check the diameter and wall thickness of the tubes to make sure they’re within the specified tolerances. Tensile strength tests are performed to ensure that the tubes can withstand the pressure and handling during normal use.
To verify the biodegradability of the tubes, we send samples to independent laboratories for testing. These tests simulate real – world conditions to determine how quickly the tubes will break down in the environment. Only tubes that pass all these tests are approved for sale.
Step 8: Packaging and Storage
The final step in the production process is packaging and storage. We carefully pack the biodegradable plastic tubes in suitable packaging materials that protect them during transportation and storage.
The packaging materials are also chosen to be environmentally friendly. For example, we might use cardboard boxes made from recycled paper or biodegradable plastic films. We label the packages with important information such as the product name, size, batch number, and handling instructions.
The packed tubes are then stored in a clean and dry warehouse. We make sure to store them at the right temperature and humidity to prevent any damage or degradation.
Why Choose Our Biodegradable Plastic Tubes
Our biodegradable plastic tubes offer many benefits. First of all, they’re good for the environment. As they break down naturally over time, they don’t contribute to the growing problem of plastic pollution.

Secondly, they’re of high quality. Thanks to our strict production process and quality control system, our tubes are durable and reliable, meeting the needs of various applications. Whether it’s for cosmetics, pharmaceuticals, or food products, our tubes can be a great choice.
Plastic Laminated Tubes If you’re interested in our biodegradable plastic tubes, we’d love to hear from you. Whether you’re a small – scale business or a large corporation, we can work with you to meet your specific requirements. Don’t hesitate to contact us for procurement discussions. We’re here to offer the best products and services to make your business more sustainable.
References
- “Biodegradable Polymers for Packaging Applications” by X. Jia and X. Huang, in the Journal of Renewable and Sustainable Energy Reviews.
- “Extrusion of Plastics” handbook which provides in – depth knowledge on the extrusion process.
- Research papers on the production and properties of polylactic acid (PLA), polyhydroxyalkanoates (PHA), and starch – based polymers from academic scientific journals.
Yangzhou NewGreatWall Plastic Co., Ltd.
Yangzhou NewGreatWall Plastic Co., Ltd. is one of the most professional biodegradable plastic tubes manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to wholesale biodegradable plastic tubes for sale here from our factory. Contact us for quotation.
Address: No.12 Tongzhou Road, Hangji Industrial Park, Yangzhou, Jiangsu
E-mail: sales@ngwpack.com
WebSite: https://www.cosmeticplastictube.com/