25kg Food Grade Polypropylene Woven Sacos Used for Flour Packing with Filling Valve

Product DescriptionThis is a new and innovative packaging technology, without any adhesives or stitching, just through hot air welding, the tubular woven fabric can become a finished bag within several minutes. The step of the bag processing begins from a coated pp woven fabric, and then, cutting, folding the bottom, welding with layers, bag finishing, totally by one machine, AD* STARKONThis bag is commonly used for the automatic packaging, transportation, and storage of cement, fertilizer, granulates, animal feed, and many other dry bulk products. The bag is stronger than paper, quick to fill, and has a good moisture barrier; all qualities that have contributed to the sharp increase in the use of this packaging type.The loading is from 25 to 50kg, and printing can be offset, flexo, and also gravure print. On both sides.Block Bottom Bags are perforated with a star micro-perforation system which allows air to come out holding the cement or other material without allowing any seepage. Detailed Photos Product Parameters No.ItemSpecification1Shapetubular or back seam2Length300mm to 1200mm3width39mm to 700mm4Tophot air welded with filling valve5Bottomhot air welded no stitching, no hole6Printing typeOff-set printing or Gravure printing on one or two sides, up to 8 colors7Mesh size8*8, 10*10,12*12,8Bag weight50g to 90g9Air permeability20 to 16010Colorwhite, yellow, blue, or customized11Fabric weight58g/m2 to 220g/m212Fabric treatmentanti-slip or laminated or plain13PE lamination14g/m2 to 30g/m214ApplicationFor packing the cement, stock feed, animal food, pet food, rice, chemical, etc15Inside linerCan be combined with kraft paper and into a two layers bag16Characteristicsauto-filling, self-sealing, easy for pallet pack, save warehouse space, cost-effectivecompared with kraft paper bag17Material100% original polypropylene 18Optional choiceback seamed, combined with kraft paper19Packageabout 500pcs for one bale or 5000pcs one wooden pallet20Delivery Timewithin 25-30 days for one 40H container  More FeaturesCompared to other industrial sacks, Block Bottom Bags are strongest bags in polypropylene woven fabric. That 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 the transportation.Bag Made from coated PP woven fabric, with outside PE lamination for moisture resistance.Top with valve for automatic closure.Specifications and printing could be according to the customer's requests Eco-friendly polypropylene material can be fully recyclableEconomical use of raw material than a 3-layer paper bag and PE-film bagImpressive reduction of the breakage rate when compared with conventionally used paper sacksSuitable for packing all types of free-flowing goods, such as cement, building materials, fertilizer, chemicals, or resin as well as flour, sugar, or animal feed.The loading is from 25 to 50kg, and printing can be customized as offset, flexo, and also gravure print. On both sides.  Strict Quality ControlAs a professional manufacturer of the Block Bottom Valve packaging bag, we make our bags:1. In 100% virgin raw material2. Eco-friendly ink with the good fastness and bright colors. 3. Top grade machine to make sure a strong break-resistance, peel-resistance, stable hot air welding bag, make sure the utmost protection of your materials. 4.  From tape extruding to fabric weaving to laminating and printing, to the final bag making, we have the strict inspection and testing to make sure a high-quality and durable bag for end users.40kg 50kg Cement Bag40kg pp cement bag - Standard SpecificationLength: 56 cmWidth:  50 cmBottom Height: 11 cmMesh:   10x10Bag Weight:  70 ± 3 gramsColor:  Beige or White or customized   50kg pp cement bag - Standard SpecificationLength: 63 cmWidth:  50 cmBottom Height: 11 cmMesh:   10x10Bag Weight:  80 ± 2 gramsColor: Beige or white or customized   Our Advantages1. Factory produce factory export. 2. Engaged in this industry since 1983, with more than 39 years of experience3. Top-grade equipment has been introduced since 2009 to ensure higher quality and reduce the overall cost for customers. 4. Occupied a total of 160,000m2 of production area and can make sure an annual output of more than 500 million bags.5. Professional design team, well-cooperated cylinder workshop, with sufficient experience in handling more than 6,000 kinds of bags, to meet the unique needs of customers6. Good reputation, we aim at a long and stable relationship with our valuable customers.7. Professional Services*pre-sale serviceAny of your questions will be taken seriously and offer you reference opinions. * In-sale serviceMake you posted on the production progress with on-site follow-up for each production step. * After-sales serviceWe are responsible for EACH bag we produced. Feel free to contact us in case any questions you may have. We will answer you timely, and coope