hotest sale kraft paper mailing bag/25kg kraft paper valve bag

A bulk bag or FIBC, Flexible Intermediate Bulk Container, is a large woven bag designed to carry bulk materials. The generally loading capacity from 500 to 2000Kg with safety SWL from 3:1 to 6:1. The bags widely used in mineral, chemical, food, starch, feed, cement, coal, powdered or granular materials packaging, storing, also can pack dangerous products for Group II,III.
If you have a business that requires the use of bulk bags, you probably know the concept of the big bags, and you also may would like to know some more about the types and features to help evaluating the loading/discharging performance to make a wise choice.

Here are some basic features for your consideration:

Types of Big Bags:
1.U-Panel construction – made from 2 pieces of fabric with 2 seams along 2 opposite sides
to create 2 panels into a “U” Panel shape.
2.Four panel bag (the original polypropylene design) – requires seams along four separate pieces of fabric
 sewn to create a four panel bag.
3.A Circular or Tubular bag made from fabric that has been woven into a cylinder or tube of fabric, cut to the
correct size. This tubular body design is ideal as a liner-less option for fine materials.
4.Form-stable or Baffled bags with corner baffles sewn in to maintain their shape when they are filled, allowing
the product material to flow into all corners of the bag.
5.Vented bags – A section of each side of the bag is vented to allow airflow throughout the contents of the bag, most suitable for use in the agriculture industry for fruit and vegetables such as potatoes.

1.Duffle Tops: A duffle top can be added to any kind of bulk bag, including circular and U-panel bulk sacks. A duffle top provides a bag with a fill opening that has the same width and depth dimensions as the bag it is on.
This kind of versatile top works well with many kinds of filling machines and is useful in many filling procedures. Once a bulk bag is filled, the duffle top is closed to protect the product in the bulk sack.
2.Spout Tops: Spout tops help to reduce the amount of dust that is generated when a bag is being filled. A bag with a spout has a chute on its top that product runs through to fill the bulk bag. While spouts can be customized to suit your specific needs, the bulk bag industry does have standards for the most frequent applications, with the most common measure being 14-inches in diameter and 18-inches in length.
3.Open Tops: Open top big bags are exactly what they sound like: open. They don’t have a top panel to cover the contents and are, therefore, generally easy to fill with products that don’t need to be protected from external elements.

Depending on a variety of factors, the FIBC you need may have one of the following bottoms:

1.Spout Bottom: Spout bottom bulk sacks have a spout on their bottom that is used to empty whatever product the bag is holding. The most common dimensions for a spout on the bottom of a bulk bag are the same as the ones used for a spout on the top of a bulk sack.
2.Plain Bottom: If a bulk bag has a duffle top and a plain bottom, it’s normally emptied through its duffle top or cut open to remove its contents from the bottom. Bags with this type of bottom are typically used just one time.
3.Full Bottom: A full bottom discharge bulk bag has a spout that’s used for emptying the bag, and it has the same characteristics of the bag itself. This sort of bottom is appropriate when a bulk bag is being used to store or transport materials that clump together into masses.

Besides, there are also some other specifications you may consider:
1.100% recyclable
All parts of FIBC are recyclable.
2.UV Stabilization
Can make the bag UV stabilized.
3.Food Grade
FIBCs are made from food grade polypropylene
4.Fabrics
Can be coated, uncoated and ventilated in all the colors. Standard FIBCs are white.
5.Sewing thread
All colors defined by Pantone System.
6.Printing
Up to 3 colors and up to 4 sides
7.Document Pockets
As per the requirement of buyer – A4 Size, A5 Size, and Zip Lock etc.
8.Lifting Loops
Available in various styles, designs and colors.
9.Liners
Loosely inserted, shaped, formfit.
10.Safety Factors
From [5:1, 6:1 & 8:1] as required by the buyer.
11.Certification
Our FIBCs are certified by Labordate.
12.Traceability
Each FIBC bags can be traced back to the order no. And production date.

Q1: Are you a manufacturer?

Yes, we have more than 17 years of experience in producing various. We provide professional solutions in the plastic weaving industry according to customers' needs.

Q2: Can you do UV Resistance Test and Cyclic Top Lift Test?

Yes. We have laboratory, UV Tester, Cyclic Top Lift Tester and other quality control department.

Q3: If I want to get a quote, what information should I tell you?

- The size of the bag (length * width * height) or (diameter * height)

- Material and surface treatment

- The color of the bag and the color of the loop

- The quantity
- The fabric weight
- The bag's working condition, the time of use, the temperature, the storage method of the goods, and the light time.

Q4: How long can the sample be completed? What is the production scale of your factory?

Usually, sample production takes 1-2 days. The lead time for mass production will depend on quantity, quality, and existing orders. Most importantly, it can be done urgently.

Q5: Can I put my own LOGO or print my own design on the products?

Yes, customized logos and designs are accepted.