Block Bottom Valve Bag

sack concept for cement – in use worldwide, patented internationally, and produced exclusively on Starlinger or Windmoller & Holscher machines. The brick-shaped PP woven sack, produced without adhesives by heat welding of the coating on the fabric, was developed with automated filling and handling processes in mind. The sack can be produced either as a one-layer block bottom valve bag or as an open mouth bag with a block bottom. It surpasses all comparable products as far as resistance to breakage is concerned, is versatile and also eco-friendly and economical.