Product Overview
Poly roll bags are plastic bags supplied continuously in roll form, with tear-off lines between bags for easy removal, similar to tearing plastic wrap. Widely used in industrial, commercial, retail, and food service sectors, they are favored for their efficient and convenient access and compact storage characteristics. Roll plastic bags are produced using a blown film process and can be made from various materials, such as linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), high-density polyethylene (HDPE), and environmentally friendly biodegradable materials (PLA/PBAT blends), depending on the requirements. The bags can be layflat or pre-opened to meet the needs of both automated packaging and manual handling.
Features of Poly Roll Bags
1. Material Diversity
Poly roll bags can be made from different resin materials depending on the application:
LLDPE (Linear Low-Density Polyethylene): Excellent flexibility and strong puncture resistance, suitable for wrapping irregularly shaped items.
LDPE (Low-Density Polyethylene): High transparency and soft feel, suitable for retail display.
HDPE (High-Density Polyethylene): High strength and good stiffness, suitable for heavy-duty packaging.
Biodegradable Material: PLA/PBAT blend, completely decomposes under industrial composting conditions.
2. Roll Design Advantages
Pre-cut tear lines: Pre-cut tear lines between each bag, easy to operate with one hand.
Compatible with Standard Cores: 1-inch to 3-inch inner diameter options, compatible with various automated packaging equipment.
Compact Storage: Roll packaging saves more than 50% of storage space compared to flat folding.
3. Certification and Compliance
FDA Certification: Complies with FDA food contact material standards.
USDA Certification: Applicable to agricultural product packaging.
ASTM D6400: Compostable material certification standard.
Fresh-keeping bags Functions:
1. Strong load-bearing capacity: The plastic wrap has extremely high load-bearing capacity and can effectively protect the packaging contents and is not easily damaged.
2. Anti-pull: High-quality LDPE material ensures that the plastic wrap will not be easily pulled and damaged during use.
3. Anti-puncture: Excellent puncture resistance, ensuring that it will not be punctured by sharp objects during the packaging process.
4. Thin and durable: Although the plastic wrap is very thin, it is extremely durable and can be used for a long time without failure.
5. Solid: The overall structural design is solid and can provide reliable protection.
Advantages of Poly Roll Bags:
1. Increased Packaging Efficiency: The roll design, combined with automated packaging machines, achieves a packaging speed of 1-2 bags per second, 5-8 times more efficient than manual packaging. PAC Machinery's latest automated bagging system can handle roll bags up to 22 inches wide, significantly improving order fulfillment efficiency.
2. Reduced Overall Costs:
Material Costs: Bulk purchasing of roll bags saves 15-30% compared to flat-folded packaging of the same size.
Labor Costs: Automation reduces manual operation and lowers labor costs.
Transportation Costs: The compact roll design increases container loading capacity, resulting in lower unit transportation costs.
3. Hygiene and Safety Guaranteed: Roll plastic bags are sealed at the factory, effectively preventing dust and moisture. Food-grade materials ensure no harmful substance migration when in direct contact with food, meeting HACCP food safety management system requirements.
4. Environmentally Friendly and Sustainable: Produced using 100% virgin raw materials or post-consumer recycled resin (PCR), making them recyclable. The biodegradable material decomposes into carbon dioxide, water, and biomass within 180 days under industrial composting conditions.
Applications of Poly Roll Bags:
1. Food Industry
Fresh Fruits and Vegetables: Apples, carrots, cherries, herbs, chives, lettuce, peppers, potatoes, tomatoes, etc.
Meat Products: Fresh meat, poultry, seafood cold chain packaging
Baked Goods: Bread, pastry display packaging
Dried Goods: Coffee, milk powder, pet food, seeds, grains
2. Industrial Manufacturing
Component Packaging: Hardware, electronic components, molds
Equipment Protection: Machine covers, pallet liners
Chemical Products: Granular chemicals, fertilizers
3. Retail Industry
Apparel and Textiles: Clothing, towels, bedding
Stationery and Gifts: Books, toys, gift sets
E-commerce Shipping: Order fulfillment, mail packaging
Common Sizes & Thickness Chart
Standard Size Reference (Inches)
| Width (inches) | Length (inches) | Thickness (mil) | Bags Per Roll | Application Scenarios |
|---|---|---|---|---|
| 3" x 5" | 5" | 2.0 mil | 2000 | Small parts, jewelry, pharmaceuticals |
| 4" x 6" | 6" | 2.0 mil | 1500 | Stationery, gifts, cosmetics |
| 6" x 8" | 8" | 1.5 mil | 1000 | Bread, sandwiches |
| 8" x 10" | 10" | 1.5 mil | 750 | Clothing, towels |
| 10" x 12" | 12" | 2.0 mil | 500 | Books, electronics |
| 12" x 15" | 15" | 2.0 mil | 400 | Shoes, small appliances |
| 14" x 18" | 18" | 2.0 mil | 300 | Stuffed toys, pillow inserts |
| 16" x 20" | 20" | 2.0 mil | 250 | Duvets, coats |
| 18" x 24" | 24" | 2.0 mil | 200 | Large garments, bedding |
| 24" x 36" | 36" | 2.0 mil | 500 | Industrial parts, pallet liners |
| 34" x 50" | 50" | 0.0018 mil | 250 | Oversized items, waste collection |
FAQ
Q1: What is the difference between poly roll bags and regular flat bags?
A: Roll bags are supplied in continuous rolls with slight breaks between bags, allowing for individual tearing; flat bags are stacked in bulk. Roll bags facilitate automated operations, save storage space, and are suitable for high-frequency access scenarios.
Q2: How to choose the correct thickness?
A: Choose according to the weight and sharpness of the item:
Lightweight items (<1kg): 1.0-1.5 mil
Medium weight (1-5kg): 1.5-2.0 mil
Heavy weight items (5-10kg): 2.0-3.0 mil
Sharp items: 3.0 mil and above
Q3: Can roll bags be used for food contact?
A: Yes. Choose FDA-approved food-grade materials (LDPE/LLDPE virgin resin) to ensure compliance with 21 CFR 175.300 requirements.
Q4: Do biodegradable roll bags require special treatment?
A: Yes. Biodegradable bags (PLA/PBAT) must be processed in industrial composting facilities and cannot be mixed with ordinary plastics for recycling. Degradation conditions are 58-60℃ and moderate humidity; complete decomposition occurs within 180 days.
Q5: What is the minimum order quantity?
A: Standard sizes typically have a minimum order quantity of 5000-10000 pieces per specification; custom printing may require a higher minimum order quantity. Please consult our sales manager for details.
Why Choose Our Poly Roll Bags?
As a professional plastic packaging manufacturer, we are committed to providing our customers with high-quality, customized roll plastic bag solutions:
10+ Years of Industry Experience: Comprehensive quality control from raw material sourcing to finished product delivery.
FDA/USDA Certification: Food-grade materials, ensuring safety.
12-Color Printing Capability: Professional design team to create your brand image.
Biodegradable Options: PLA/PBAT materials, ASTM D6400 certified.
Flexible Minimum Order Quantity: From small trial orders to container orders, meeting diverse needs.
Global Network: On-time delivery, full tracking.
Contact us today for samples and professional consultation!
Service Content：
| OEM and ODM services | The company provides OEM and ODM services to meet the diverse needs of different customers |
| Production using recycled materials | Many of our products contain at least 30% recycled content, avoiding the additional cost pressures of increased taxes on imported plastic packaging. |
| Certificate | ISO14001, ISO9001, SGS-REACH, SGS-LDPE polyethylene bag (30% recycled material), USB TEXT5873-GRS-2022-01 |
| Packaging method | Boxed, bagged, custom packaging |
| Delivery time | Usually about 35 days after receiving advance payment and confirming all details |
| Sample/supply quantity | 3-7 days. Some of our samples are free, and some are chargeable. Can supply more than 50 containers per month |
| Minimum order quantity | According to specifications, between 100kgs-1000kgs |
| Price | Depends on size, thickness, packaging and printing |
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