Extrusion
In this process, a mix of virgin polypropylene, ultraviolet inhibitor, a small amount of calcium carbonate & sometimes color pigment are melted together to convert them into tapes in an extrusion plant. At the end of this procedure, the tapes are wound on bobbins of a particular size and denier.
Weaving
The extruded tape bobbins are loaded in circular/flat weaving looms. Here the tapes will be woven into the fabric of a required specification. At the end of this process, the fabric will be rolled.
Lamination
Lamination is a step in which polypropylene fabric gets laminated with a semi-clear PP film that fills the microscopic gaps within each weave to create a moisture barrier.
However, it is an optional process and can be carried out as per the customer’s requirement.
Cutting
It is an automatic process that is majorly used to get better accuracy in the cut size. Here, the woven polypropylene fabric in rolls will be inserted into the automatic cutting machine. Then, the fabric will be cut into a bit of the desired size.
Printing
The body fabric panels are then inserted into the printing machine. A wide assortment of colors can be implemented in this printing process as per customer requirements.
However, it is an optional process and can be carried out as per the customer’s requirement.
Webbing
During this process, the lifting loop of fibc bags are made. Webbing is a process in which heavier tapes of polypropylene fabric are spun into the webbing material accurately while the strips of this material are then cut to the required measurement.
Sewing
In this process, all of the components used to manufacture FIBC are gathered together along with the fabric. These parts are precisely assembled to the fibc bags by highly skilled personnel.
The process is carried out under the supervision of technically experienced supervisors.
Inspection
It is one of the crucial processes in which every bag that is manufactured will be thoroughly inspected by a technically experienced person. This ensures that every bag delivered from the manufacturer is of good quality.
Cyclic Top Lift Test / Burst Test
This involves random testing of finished products in the testing rig. This process ensures the Safe Working Load of these bags and is usually conducted with the production sample bag before the commencement of production.
Packing & Storage
In this process, the fibc bags that have been produced will be compressed with a bale press machine and will be precisely packed as per customer requirements.
After these bags are bale/pallet, they are immediately moved to a clean storage room where they are kept ready for dispatch.
