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Laminations can be applied to the block bottom bags also. The film can in a gloss or special matt finish, with high quality graphics & printing up to 10 colours, aim at the ultimate presentation.The AD*STAR Block Bottom Cement Bag is the lightweight among woven bags made of polypropylene fabric. Less weight means material savings, and despite its low weight, the PP woven bag is robust.PP valve bags, Filling volumes from 10-50KG, from nearly airtight to highly air permeable, from extreme low bag weight to maximum strength, from industrial to consumer bag.

50kg rice flour block bottom valve bag

Valve bags are designed for quick de-aeration and high filling speed.

The valve can self-closing by the pressure of the product, or heat sealed or by ultrasonic.

PP valve bags are 100% recyclable
High Gloss & Matte Finishes available

Up to 10 colors gravure print

Resistant to oil and grease
UV inhibitor

Top can be sealed when auto filling finished

100% recyclable bag

High Gloss & Matte Finishes available

Up to 10 colors gravure print

Resistant to oil and grease

Valve bags with block bottom or flat bottom also called paste bottom bags, is the most popular packing bag in the world now. Through automatic filling equipment, the goods come into the bag from the valve at the top or the bottom, valve will be automatically closed along with the fulfillment of the material. Body become brick shape after filled.
Block bottom valve bags can be made of pp woven, pp woven compound with craft paper/ PE.

For single layer plastic woven bag, there is a coating outside the fabric which are used for later hot-air welding bag making process. This is the most used bag for cement, sand and other construction materials.

While, for some higher brand, or some chemical ingredient powder, with higher brand printing and quality requirements will use BOPP laminated bags.

– BOPP film allows for up to ten colors and superior high-resolution graphics printing, so that you can show your company and product with almost photographic quality printing to the clients, it definitely will deliver your brand very impressively in the retail packaging market.

– BOPP film can achieve Moisture-proof, Fade Resistant, Insect and Rodent Resistance.

The block bottom sack can be produced either as valve or open mouth in a one or two layer design having Flexo printing or with multicolor gravure printing.

Packaging for automatic filing machines , the bags must keep To be smooth and unfolded , so We have the following packing term , please check according To your filling machines .

1. Bales packing : free of charge , workable for semi-automatization filing machines , workers hands are needed when packing cement .

2. Wooden pallets : 25$/set, common packing term , convenient To loading by forklift and could keep the bags flat , workable forcompleted automatic filing machines To large production , but loading few than bales , so higher transportation cost than bales packing .

3. Cases : 40$/set, workable for packages , which has highest requirement for flat , packing the least quantity in all packing terms , with the highest cost in transportation .

4. double planks: workable for railway transportation , could add more bags , reducing empty space , but it is dangerous for workers when loading and unloading by forklift , please consider second .