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How are bulk bags filled?

Bulk bags are filled through the top of the bag in various ways, depending on the needs of the user. Bulk bags come in several configurations each designed for the specific filling method used. Spout topbags are commonly used with bag filling machines and hopper applications. Duffle top bags are usually used when the filling method is not as controlled, such as using a shovel or skid steer, but product protection when transporting is still desired. Open top bags are similar in use to duffle tops, but offer no product protection for transport.

What are bags with liners?

Bulk bags can have plastic liners either inserted loosely or attached to the inside of the bag. All of Bulk Bag Depot’s stock lined bags are fixed inside with tabs during manufacturing. We also sell bulk bag liners which can be installed into most unlined bulk bags. Lined bulk bags offer good moisture and contaminate protection, but unless specifically made for liquids, they are not 100% waterproof.

What does coated or laminated bag mean?

A coated or laminated bulk bag is constructed with fabric that has a thin layer (usually 1 mil) of polypropylene bonded to one side. Coated bags provide a moisture barrier from condensation or low amounts of water. Coated bags do NOT provide complete 100% waterproofing. For greater protection, consider bags equipped with liners.

What does fabric weight mean?

Fabric weight refers to the actual weight of the fabric of which a particular bag is constructed of. Fabric weight units may be listed in ounces (ounces per square yard) or GSM (grams per square meter). Fabric weights correlate closely to overall bag weight carrying capacity or Safe Working Load (SWL). Higher SWL bags will have higher fabric weights. Conversion (1oz. per 34 GSM).

What does SWL mean?

Safe Working Load. This is the maximum amount of total weight the bag is rated, tested, and guaranteed to carry safely.

1.What Does 5:1 or 6:1 safety factor mean?

What is the meaning of 5:1,6:1 in the big bag information? The big bag is rated to hold 5 times the SWL (Safe Working Load) that is listed on the label. This does NOT mean you can load the big bag with more than the SWL rating, but that the big bag is designed with a “safety” factor of over compliance.

Do you have test report?

Dapoly have high level of confidence in your bag. On-site technical evaluation: your wishes, our experience Yes we have. Our QC will check the quality of each piece of bag one by one, Every shipment have factory test report.

Can I print my logo on the bag?

Yes you can.Dapoly have 5 professional printing line for the bags.We accept Toppan Printing ,Gravure printing, Lithography and Stencil printing.Dapoly can Satisfy all your special requests.What's more Dapoly R&D department always design and produce according to buyers requests. If you need we can provide customized printing design.