Block Bottom Valve Bags are made of 100% polypropylene, sealed bottom and mouth by hot air sealing, suitable for packing raw material, feed- ingredients, fertilizers, chemicals (powder) and cement.

Another layer of kraft paper or PE coating can be added inside of the bag.

Produce with European technology, Block Bottom Valve Bag is a superior type of product in comparison with traditional packaging products with prominent features as follows:

• High strength, no breakage and spillage of goods
• Micro perforation with good air permeability
• Better printing quality and design
• Gentle dimension, storage space saving
• Competitive cost

AD*STAR® is the well-known sack concept for powdery material – in use worldwide, patented internationally, and produced exclusively on Starlinger machines. The brick-shaped PP woven sacks, 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.

The Ad*Star Sack can be produced either as a one-layer Block bottom valve bag (V-BB) or as an open mouth bag with a block bottom without valve (OM-BB) and with or without micro-perforations.

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: 6×6, 8×8, 10×10, 12×12, 14×14

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

Looking for ideal Block Bottom Sack For Cement Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Valve Bag Printed are quality guaranteed. We are China Origin Factory of 50kg Ca Sack. If you have any question, please feel free to contact us.

Product Categories : Block Bottom Valve Bag > PP Block Bottom Valve Bag