PP Woven Block Bottom Valve Bag is the ultimate solution of leak free packaging. These bags are specially designed with micro holes that help in exhausting the air to increase the efficiency of the filling station and close automatically. This type of bags are popular in the Cement and Gypsum industries for their advance look and stack ability in the warehouse.
These value bags are highly resistant laminated single-layer woven polypropylene bag in brick shape, produced by heat welding of the coating on the fabric (No glue or stitching) giving it great resistance )lower breakage rate) and perfect water-tightness. These bags can be produced with valves or open mouthed. It surpasses all comparable products as far as resistance to breakage is concerned, is versatile and also eco-friendly and economical.
These bags are designed for high-speed filling through a value on spout packers with top performance wherever high speed filling process are used. Filling performance and protection properties can be fine-tuned according to the customer needs
FIPCO is always looking for the new and high technology machine in market to able to cover all the customers’ requirements.
FIPCO add to valve bags options:
Easy open bags which will change the strategy of the Clint especial the end user to open the bag hardly to be easy
Carry handle bag by add special handle to the top of the bag
FIPCO gives to customers more options to Choosing the right valve bag is essential for proper bagging. Broadly, there are main two type of bags in this category.
Open Bag & Valve Bag:
Although the multi-purpose open bag is widely used, the automatic bagging system is designed basically for the valve bag. The reason for this is valve bag have considerable advantages in terms of cleanliness, safety and efficiency.
For open-bag filling, the entire top of the bag is the mouth and powder is dropped into the bag from above. In contrast, the valve bag is filled through a valve built into one corner at the top of the bag. A filler nozzle is inserted into the valve, maintaining a closed environment as the bag is filled.
With a valve bag, the packer until will complete the basic processes of filling; there is no need for secondary processes, such machine sewing of the bag. Another considerable merit is that the valve bag enables smaller bag dimensions, with a higher fill density.
Available Options in Valve Bags:
Inner Sleeve Valve Type: This is the general name for bags with internal valves. The Inner Sealed Valve Type, above, is one variation of the Inner Sleeve Valve Type. As the bag fills, the powder pushes the valve upward, effectively closing the valve and thereby preventing powder spillage. In other words, simply filling the inner sleeve valve bag prevents spillage of contents.
Inner Sealed Valve Type: The valve is inside the valve bag, and the bag is sealed with an adhesive sealing label. As the valve is inside, the possibility of powder spillage after filling is reduced considerably. The sealing machine covers that sealing label with adhesive and seals the bag. This method eliminates powder spillage after sealing and prevents foreign materials from entering the bag. The automatic system uses the inner valve bag for automated sealing.
External Sleeve Valve Type: A bag with an external sleeve valve appears to have a tube extending from the bag. After filling, the bag is closed by folding the external sleeve valve. Adhesive or other sealants are not necessary, and the bag is effectively sealed simply by folding the valve. This valve bag and sealing method are thus often used for manual bagging operations. The valve can also be heat-sealed for complete closure.
Sizes of Bags & Valves:
Even with the same materials and layer compositions, bags can have an infinite variety of valves and sizes. In the case of valve bags, the diagram below shows how bags are measured according to the length (L), breadth (W), and flat width (D). Although the volume of the bag is roughly set by the length and breadth, the flat width is crucial when bagging, because the valve size is in many cases decided by the flat width. As the automatic filling station or machine operator inserts a nozzle into the valve, the valve size must be selected to match the nozzle.
Example of Palletized Bags: When using valve bags, the filled bags can be neatly stacked on pallets, as shown in below picture.
Shipping and Storage:
The feature of the cubic bag enhances its performance during shipping, stacking as well as handling.
Polypropylene bag life is longer than paper bags while paper bag cannot protect the products for long time.
Empty Polypropylene bag weight is less than three times paper bag weight. This has an advantage of increasing the number of empty shipped bags.
Endures high humidity, rain, sun during the storage.
Less wastage during production and handling.
Reduced Costs to customers.
Availability of the raw material of polypropylene is many markets throughout the world unlike paper as it is limited and found in certain international markets only.
Brick Shape is suitable for filling with Automatic filling Machine or Manual Filling.
Strength and Resistance is high due to the tightness and flexibility of woven bag.
Dropping filled bags from trucks is less harmful to bags than the case with paper bags due to polypropylene bag tensile strength.
The Possibility of recycling polypropylene bags after using into granules for environmental protection.
The bag tensile strength protects the bag from tear and wastage the product it contains.
Maintains the factory uncontaminated upon packing, shipping, transportation, discharge and storage.
Raw material used in Paper bag effect the percentage of forests in the plant, while PP valve bag doesn't.
No Waste Sacks.
3 – Dimensional Bag made of woven polypropylene with side valve for filling.