Each year billions of tons of cement and cement-related are packaged in multi-wall paper valve bag and bulk bag called flexible intermediate bulk container (FIBC).

Today Let us learn together how to choose the right type for your building product.

Multi-Wall Paper Valve Bag for Cement Packing

Bags of cement make up a significant portion of all multi-wall paper bags produced in the world each year. The most common bag style for packing cement is a pasted valve stepped end (PVSE) bag, also called a valve bag.

Dry cementitious products commonly packed in valve bags include:

Concrete mix

Portland cement

Masonry cement

Mortar mix

Stucco

Adhesives

Valve bags are packed on equipment that deposits material into the bag via a horizontal filling spout. Valve packing equipment can range from manual, hand-spouted equipment to modern fully automated equipment.

Valve bags are filled through an opening located in the top corner of the bag. The product is pumped into the bag via air pressure, impeller, or auger. When the bag is discharged from the packing equipment, forces generated by the product inside the bag allow the valve opening to self-seal. Cement is most commonly packed using impeller and air-packing equipment.

In general, cement is aerated before it enters the bag. To pack properly, often the paper plies of the bag are perforated to dissipate air entrained in the product. Most cement bags include a polyethylene film barrier for moisture protection. The film ply is typically buried in between the paper plies.  

The valve bag construction results in a squared-up bag, which palletizes very securely and can be printed with product information on the side or end panels for easier product identification in pallet loads.

Next news for the application of FIBC BAG on building material industry, will be coming soon !!!