Company Profile
Since being founded in 2015, Yuze Pack is devoted to be the Chinese Leading bulk bag manufacturer with premium quality and prompt delivery to fulfill worldwide bulk bag needs from our distributors and final users.
Production environment protection control allows us to have an eco-friendly production which is highly praised by local government. And we also have an experience team of international business to ensure our cooperation more smoothly.
Advanced Equipment
Yuze Pack has 4 PP Monofilament Extrusion Lines, 50 circular looms, 30 webbing machines,480 sewing machines as well as packaging and test equipments. Our annual capacity is 12,000 tons of semi-finished products and 3 million bulk bags.
Professional Team
In order to provide a better service to customers from different countries, Yuze Pack acquires a membership of Flexible Intermediate Bulk Container Association in United States. And all FIBC from Yuze Pack are covered worldwide by American International Group Insurance Company China Limited.
Factory
Yuze Pack Limited, established in 2015 with registered capital 19 million RMB, is a Flexible Intermediate Bulk container (or bulk bag/ big bag) manufacturer. Located at Yuncheng City in Shanxi Province next to Sanmenxia City in Henan Province across Yellow River, Yuze Pack has a convenient transportation to Tianjin Port and Qingdao Port.
Certificate
Aiming to be a leading FIBC manufacturer in China, Yuze Pack sets up a comprehensive control system of quality and environment along with employee health protection. It has earned us the ISO 9001:2015, ISO 14001:2015 & OHSAS 18001:2007.
U Panel Bagare a type of Flexible Intermediate Bulk Container that are designed with a U-shaped panel on either side of the bag. The U-panel design creates a more cubic shape when the bag is filled, allowing for better space utilization during transportation and storage.
U-panel FIBC bags are typically made from woven polypropylene fabric, which provides strength and durability to handle the weight of the contents. These bags can be customized with various features, such as liners, coatings, and discharge options, to suit different application requirements.
Superior Lifting Capacity
The U Panel Bag is designed to excel at supporting heavyweights. Its unique U-shaped panel construction ensures a large lifting capacity, making it the go-to choice for materials demanding robust packaging.
Enhanced Durability
By reducing vulnerable spots on the bag bottom, the U Panel design enhances overall durability. This feature is particularly crucial for transporting heavy or abrasive materials, ensuring the bag withstands rigorous handling.
Square Appearance
With vertical side seams providing a distinctive square appearance, U Panel Bags optimise space during storage and transportation. This characteristic allows for efficient stacking, contributing to streamlined logistics.
Effective for Fine Items
The U Panel construction is specially tailored for sifting fine items. This design not only prevents leakage but also ensures the secure transportation of even the most delicate materials.
Lightweight and Dust-Proof
Crafted from flat-woven polypropylene, U Panel Bags are not only lightweight but also dust-proof, providing an added layer of protection for your materials during transit.
Moisture and Leakage Resistance
Boasting moisture resistance and leakage-proof features, these bags are a reliable choice for materials susceptible to environmental factors. Say goodbye to worries about moisture-related damage during transportation.
Acid Corrosion Resistance
U Panel Bags are engineered to resist acid corrosion, ensuring the safe transportation of chemicals. This feature adds an extra layer of security for industries dealing with corrosive materials.
Circular Bulk Bags
Circular bags, also called tubular bags, are constructed with two main body components: the body tube and the base.
The body tube is made with seamless tubular fabric that forms all sides of the bag, allowing for stitching only at the top and base of the bag. Although the fabric is tubular, when filled, a circular bag will still somewhat resemble a square bag.
There is a common misconception about circular bags regarding their shape when filled. They are not truly circular — they are simply constructed with a single piece of fabric that forms all four sides of the bag.
4-Panel Bulk Bags
A very common bulk bag style, 4-panel bags are constructed with five main body components: four side panels and the base.
When filled, a 4-panel bag will hold its square shape similar to other construction types. Typically, 4-panel bags will hold their shape better than U-panel bags, while U-panel bags will hold their shape better than circular bags.
Due to the large amount of stitching required, a 4-panel bag has a greater opportunity to fail at the seams and is prone to sifting. Nevertheless, 4-panel bags are ideal for storage due to the way they hold their shape when filled.
Baffled Bulk Bags
Baffles are an internal component that can be added to a U-panel, 4-panel, or circular-style bag. More specifically, baffles are fabric panels or strings sewn inside each of a bulk bag’s four corners that allow it to maintain a square shape when filled.
Without baffles, the construction types listed above can bulge or belly at the sides when filled.
Single Loop and Double Loop Bags
Produced from single tubular fabric, single and double-loop bags are widely accepted as being more cost-effective than traditional four-loop bags.
The body fabric of the bag itself is extended into a lifting loop which gives the bag a higher breaking strength and makes the FIBC easier to lift. The loops can be wrapped with colored sleeves to assist in easily identifying the bag.
An inner liner is usually incorporated inside the bag to keep the packed product free from moisture and other contaminants.
Cement Transportation
U-panel bags are the preferred choice for transporting cement, providing a secure and durable packaging solution for this heavy and crucial construction material.
Chemical Transportation
Engineered to resist acid corrosion, these bags are ideal for safely transporting a wide range of chemicals, ensuring both product integrity and workplace safety.
Cereal and Mineral Transport
From cereals to minerals, U Panel Bags accommodate a diverse range of materials, offering a reliable and customisable solution for bulk transportation needs.
U Panel Bags offer a variety of benefits in bulk material transportation, seamlessly blending superior weight support, enhanced durability, and versatile applications. With a square appearance, optimising storage space, and other features, these bags redefine industry standards. Whether transporting cement, chemicals, cereals, or minerals, U Panel Bags prioritise safety and reliability.
Extrusion: Feeding in the FIBC material: The making of U Panel Bag begins with the feeding of polypropylene (PP) resin and other additives into an extruder to produce PP tapes that vary in thickness and width.The melted resin forms PP sheets that are stretched by rollers, then cut.
Weaving: The tapes are then wound onto bobbins to start the weaving process which will create the FIBC fabric.
The fabric weaving is performed on special looms to make either circular shaped bags or U-panels for the various other FIBC bag styles.
Vacuuming: If the fabric is to be coated, the bags are vacuumed to release dust particles, and the bag is then passed through a static eliminator.
Lamination: A lamination process then applies a protective coating of polypropylene which will increase the bags’ resistance to moisture and sifting. Breathable fabric bags are left uncoated.
Printing: At this point, the bags are printed with an FDA-approved printing ink, suitable for food contact. The ink that is used will dry quickly to eliminate smears or running.
Cutting: Next, a computer program controls the precision cutting of the woven fabric from the rolls into the required sizes for the bag assembly process.
Quality inspection: While we continuously QA our bulk bags through the manufacturing process, at this stage, filler cords are sewn into the seams and the bags will move on through different types of testing to final approval.
How U Panel Bag are Made
The making of U Panel Bag begins with the feeding of polypropylene (PP) resin and other additives into an extruder to produce PP tapes that vary in thickness and width. The melted resin forms PP sheets that are stretched by rollers, then cut.
The tapes are then wound onto bobbins to start the weaving process which will create the FIBC fabric. The fabric weaving is performed on special looms to make either circular shaped bags or U-panels for the various other FIBC bag styles.
If the fabric is to be coated, the bags are vacuumed to release dust particles and passed through a static eliminator. A lamination process then applies a protective coating of polypropylene which will increase the bags resistance to moisture and sifting. Breathable fabric bags are left uncoated.
The bags are printed with an approved printing ink, suitable for food contact. The ink that is used will dry quickly to eliminate smears or running.
Next, a computer program controls the precision cutting of the woven fabric from the rolls into the required sizes for the bag assembly process.
While are durable and made from tightly woven materials to ensure your products stay safe in the bag, they are not waterproof or watertight. Even if the bag has a polypropylene laminate coating on the inside or outside, it isn’t resistant to water. It works as a moisture barrier for the items you have stored inside and will reduce the amount of fine-grain material that can leak out of the bag. But water will still penetrate through the fabric.
There are ways to protect from temperature, but unfortunately, there is no way to make U Panel Bag entirely waterproof or watertight. But you can use one of several items to help limit the amount of moisture that seeps through the fabric. For one, you can add fitted polyethylene liners to the interior of your U Panel Bag. They’re also frequently referred to as poly-liners and are made of a flexible plastic material. While they add an improved defense against moisture penetration, they still cannot ensure the bags will be waterproof.
What Materials Are U Panel Bag Made Of?
U Panel Bag is made from flexible fabric designed to transport and store dry, flowable products like fertilizer, sand or granules of plastic. Typically, an bag is made of thick woven strands of polypropylene and can be coated or uncoated.
These bags can store large units, and they’re made from one or several lifting loops. For example, if you have a one-person operation, a single U Panel Bag may be the right option for you. Emptying is easy, by either cutting it open or using the special opening on the bottom known as a discharge spout.
Some bulk bags have multiple layers that are consumable or recyclable, making them eco-friendly. This option makes U Panel Bag a more sustainable choice than other industrial containers, such as new steel drums.
Maintaining Proper storage of these U Panel Bag can ensure their highest order of longevity and accordingly minimize their damages. Here are some guidelines to follow when storing these U Panel Bag:
Store U Panel Bag in a Dry and Cool Place
Keep these U Panel Bag away from direct sunlight and provide them a dry and cool environment. Exposure to sunlight can cause the bag’s fabric to weaken, compromising its strength and longevity.
Keep U Panel Bag off the Ground
U Panel Bag should be stored off the ground to prevent any damages to the bottom seams. Use pallets or racks to keep the U Panel Bag off the ground.
Avoid Stacking U Panel Bag Too High
Stacking the U Panel Bag too high can cause them to collapse, compromising their integrity and safety. Always adhere to the recommended stacking height provided by the manufacturer.
Check U Panel Bag Regularly
Regularly inspect these U Panel Bag for any damages, tears, or holes. Address any issues immediately to prevent them from worsening and compromising the safety of the workers and the materials being transported.
Yuze Pack Limited, established in 2015 with registered capital 19 million RMB, is a Flexible Intermediate Bulk container (or bulk bag/ big bag) manufacturer. Located at Yuncheng City in Shanxi Province next to Sanmenxia City in Henan Province across Yellow River, Yuze Pack has a convenient transportation to Tianjin Port and Qingdao Port.
Aiming to be a leading FIBC manufacturer in China, Yuze Pack sets up a comprehensive control system of quality and environment along with employee health protection. It has earned us the ISO 9001:2015, ISO 14001:2015 & OHSAS 18001:2007.
As one of the most professional circular bag manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy or wholesale circular bag in stock here from our factory. Also, customized service is available.
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