Coated Block Bottom Valve Cement Bags

PP Woven Block Bottom Valve Cement Bag

For cement packaging, less breakage and loss during the filing process are considered a very important factor.

There is a kind of bag, made in polypropylene woven fabric with coating outside, well done on this point. 

Compared to other industrial bags, block bottom bags are strongest bags in pp woven fabric, make it resistant to dropping, pressing, puncturing and bending. 

Worldwide cement, fertilizers and other industries have observed a zero breakage rate, doing all stages, the filling, the storage, the loading and transportation. 

AD*STAR® is the well-known bag concept for powdery material - in use worldwide, patented internationally, and produced exclusively on Starlinger machines. The brick-shaped PP woven bags, produced without adhesives by heat-welding of the coating on the fabrics, was developed with automated filling and landing processes in mind. As a result of the material characteristics and the special production process, the weight of an average 50 kg AD*STAR® cement sack can be as low as 75 grams. A comparable 3-layer paper bag will weigh about 180 grams and PE-film bag 150 grams. An economical use of raw material not only helps minimize cost, it is also a valuable contribution to the preservation of our environment.

To see our AD*STAR production line from below picture:

Fabric Construction - Circular PP Woven fabric (no seams) or Flat PP woven fabric (back seam bags)
Laminate Construction - PE coating or BOPP Film
Fabric Colors - White, Clear, Beige, Blue, Green, Red, Yellow or customized
Printing - Off-set print, Flexo print,  gravure print.
UV Stabilization - Available
Packing - 5,000 Bags per Pallet
Standard Features - No stitching, completely hot welding

Optional Features:

Printing                   Anti-slip Embossing            Micropore

Valve extendable    Kraft paper combinable     Top opened or valved

Sizes Range: 

Width: 350mm to 600mm

Length: 410mm to 910mm

Block width: 80-180mm

Weave: 6x6, 8x8, 10x10, 12x12, 14x14

Our company 

Boda is one of China’s top packaging producers of specialty Polypropylene Woven Bags. With world-leading quality as our benchmark, our 100% virgin raw material, top-grade equipment, advanced management, and dedicated team allow us to supply superior bags all over the world.

Our company covers an area totally of 160,000 square meters and there are more than 900 employees. We possess a series of advanced Starlinger equipment including extruding, weaving, coating, laminating and bag produce. What’s more, we are the first manufacturer in domestic that imports the AD* STAR equipment in the year 2009 for Block Bottom Valve Bag Production.

Certification: ISO9001, SGS, FDA, RoHS

Our main products are: PP woven bags, BOPP laminated woven sacks, BOPP Back seam bag, PP big bag, PP woven fabric