PO Plastic Bags
Your Professional PO Plastic Bags Manufacturer!
Dongguan Chengzhiyu Packaging Materials Co., LTD was established on November 2, 2023, and has quickly made its mark in the packaging materials industry. Located in Dongguan, a major manufacturing city, the company operates a modern workshop spanning over 6,000 square meters. This large facility ensures ample production space and provides a solid foundation for the company’s professional and large-scale development. Currently, the company's main business covers eco-friendly paper packaging, plastic packaging products, and customized packaging solutions, including premium gift boxes, product outer cartons, bubble bags, EPE foam, and various types of plastic-sealed packaging.
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![PO LDPE Bags]()
PO LDPE BagsOur PO LDPE Bags offer a premium packaging solution that balances high tensile strength with exceptional flexibility and clarity. By blending high-density polyolefin (PO) with premium Low-Density...read more -
![PO Gusset Bags]()
PO Gusset BagsOur PO Gusset Bags are specifically engineered to provide maximum volume, exceptional structural stability, and seamless handling for bulky, boxy, or square-shaped items. By integrating side or...read more -
![PO VCI Bags]()
PO VCI BagsOur PO VCI Bags represent the absolute pinnacle of corrosion-inhibiting packaging technology, designed to protect ferrous and non-ferrous metals from rust during international ocean transport. We...read more -
![PO ESD Bags]()
PO ESD BagsOur specialized PO ESD Bags are engineered specifically to shield sensitive electronic assemblies and micro-components from the destructive forces of electrostatic discharge. Unlike cheap,...read more -
![PO Industrial Poly Bags]()
PO Industrial Poly BagsEngineered for the storage, protection, and transport of heavy industrial parts, our PO Industrial Poly Bags deliver outstanding mechanical protection under severe warehouse conditions. Our...read more -
![PO Trash Bags]()
PO Trash BagsDesigned for the most demanding waste disposal environments, our PO Trash Bags provide an exceptional blend of puncture resistance, chemical stability, and high load capacity. Our manufacturing...read more -
![PO Vest Bags]()
PO Vest BagsOur PO Vest Bags, commonly known as T-shirt bags, are designed to solve the structural integrity issues frequently encountered in retail, grocery, and catering environments. Utilizing an optimized...read more -
![PO Flat Poly Bags]()
PO Flat Poly BagsOur high-clarity PO Flat Poly Bags are engineered specifically to meet the rigorous demands of industrial packaging, retail presentation, and protective inner lining. Utilizing premium-grade...read more -
![PO Flat Bags]()
PO Flat BagsCombining the toughness of PE and the stiffness of PP, these PO Flat Bags adopt heat-sealing technology with a sealing strength of 15N/15mm, ensuring excellent sealing performance and effective...read more -
![PO T-Shirt Bags]()
PO T-Shirt BagsMade of high-quality PO material with one-piece handle molding technology, these PO T-Shirt Bags offer comfortable grip and resistance to breakage, with a stable load-bearing capacity of 5-8kg....read more -
![PO Garbage Bags]()
PO Garbage BagsMade of thickened PO material (thickness ≥0.08mm) with high toughness, these PO Garbage Bags have a load-bearing capacity of 10-15kg. Adopting tear-resistant technology and reinforced corner...read more -
![PO Industrial Bags]()
PO Industrial BagsMade of industrial-grade high-strength PO raw materials through multi-layer composite technology, these PO Industrial Bags offer excellent wear resistance, tear resistance, and load-bearing...read more
Why Choose Us
OEM/ODM Service
Our products can be tailored to various packaging scenarios, delivering practical and diversified packaging solutions for you.
Production Market
Our business covers seven major regions in China, we cooperate with many well-known enterprises, and have an annual production capacity of over 10,000 tons.
Advanced Equipment
Our factory is equipped with advanced mechanical equipment to ensure high-quality production. We have 15 film blowing machines, 20 bag cutting machines, and 6 fully automatic printing machines, creating an integrated industrial chain for film blowing, printing, and bag making.
Our Certificate
Our company has obtained the ISO9001 Quality Management System Certification and holds an authoritative GRS (Global Recycled Standard) report. These two certifications ensure full-chain compliance and controllability from raw material procurement and production processes to finished product delivery.
Applications of PO Plastic Bags
Logistics and Transportation
Heavy-duty Packaging: For packaging industrial parts, heavy cargo, and textiles, ensuring stability during stacking and handling to reduce shifting and damage risks.
Antistatic PO Bags: Used in electronics packaging to prevent electrostatic charge buildup, protecting sensitive circuits from damage and contamination.
Pallet Covers: Thickened PO material is used for pallet covers, withstanding friction and impact during long-distance transport.
Food and Fresh Product Packaging
Frozen Food: Their low-temperature resistance ensures flexibility during cold chain transportation and storage, preventing cracks.
High-Transparency Food Packaging: PO bags offer high clarity, perfect for displaying premium food products such as baked goods and candy gift boxes, while effectively blocking moisture and contaminants.
Anti-fog Modifications: Certain PO bags are modified to prevent condensation, improving visibility and enhancing the consumer experience.
Industrial and Manufacturing Applications
Moisture and Dust Protection: Composite PO bags provide moisture barrier protection for materials like chemical powders, plastic pellets, and hardware components.
Rust Protection: Mechanical parts can be packaged with PO bags combined with vapor corrosion inhibitors, extending the protective period.
Oil and Chemical Resistance: PO bags are suitable for packaging oils, cleaning agents, and other chemicals due to their resistance to oil and chemical corrosion.
Consumer and Retail Applications
Shopping and Gift Bags: Ideal for branded products, gift bags, and promotional packaging, PO bags offer excellent shape retention and printability.
Functional PO Bags: Stand-up pouches, zipper bags, and other functional PO bags are widely used for pet food, nuts, seeds, and personal care products due to their reusable features and shelf display functionality.
Special Function Applications
UV Protection: PO bags with UV-resistant features are used for outdoor product protection, ensuring durability and safety in harsh environments.
Flame Retardant: PO bags designed with flame-retardant properties are used in industries that require high safety standards, such as construction materials packaging.
Raw Material Selection and Blending
The raw material system typically combines linear low-density polyethylene (LLDPE) and polypropylene (PP) as the base, with added modifiers for specific functions such as antistatic, anti-fog, or flame retardant properties. The materials are blended using high-speed mixing and melt mixing to create a strong network structure that ensures both rigidity and flexibility.
Co-extrusion Process
In the co-extrusion process, multiple layers of molten plastic are combined in a single step through a die, creating a multi-layer film. The outer layers provide rigidity, while the inner layers improve heat-sealing properties. This step ensures a balanced performance for the final product.
Molding Process
Blow molding is commonly used for producing PO plastic bags, where the blended melt is extruded into a preform and stretched in two directions by air, resulting in uniform strength and excellent thickness. The casting method produces films with superior transparency and smooth surfaces, suitable for high-clarity display bags.
Raw Material Selection and Blending
The raw material system typically combines linear low-density polyethylene (LLDPE) and polypropylene (PP) as the base, with added modifiers for specific functions such as antistatic, anti-fog, or flame retardant properties. The materials are blended using high-speed mixing and melt mixing to create a strong network structure that ensures both rigidity and flexibility.
Co-extrusion Process
In the co-extrusion process, multiple layers of molten plastic are combined in a single step through a die, creating a multi-layer film. The outer layers provide rigidity, while the inner layers improve heat-sealing properties. This step ensures a balanced performance for the final product.
Molding Process
Blow molding is commonly used for producing PO plastic bags, where the blended melt is extruded into a preform and stretched in two directions by air, resulting in uniform strength and excellent thickness. The casting method produces films with superior transparency and smooth surfaces, suitable for high-clarity display bags.
Specification
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Product name |
PO Plastic Bags |
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Material |
PO |
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Size |
Customized size |
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Thickness |
0.05-0.2mm or Custom Thickness |
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Color |
Black/transparent/colored or customized |
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Logo |
Custom |
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Sealing method |
Zip-Lock/Adhesive Flap/Open-Top/Heat Seal or Welded Seams |
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Printing |
Client artwork |
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Sample |
Free Samples |
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Delivery Time |
5-7 working days after design confirmed. |
Packaging and shipping
Our certificate
FAQ
We are one of the most reliable po plastic bags manufacturers and suppliers in China. Welcome to wholesale bulk customized po plastic bags at competitive price from our factory. If you have any enquiry about free sample, please feel free to email us.
po plastic bags, PO Anti Static Bags, PO Garbage Bags