Uflex’s big bags

Bulk packaging

Uflex’s big bags are used for bulk-packing items like building materials, flour, rice and pet food among several other products

‘Big bags,’ as the name suggests are rather heavy duty packages used for bulk-packing items like building materials, flour, rice and pet food among several others. Uflex apart from possessing superior capabilities of providing end-to-end flexible packaging solutions for semi-solids, viscous fluids, pastes and gels is an industry leader offering packaging solutions for solids, granular materials and powders as well. Right from as little as 5 grams to as much as 40 kilograms, Uflex can pack it all with finesse.

A challenge confronting the big bag industry was the difficulty in manufacturing high coefficient of friction (COF) anti-skid bags in matt option owing to the inherent properties of the ordinary oriented polypropylene (OPP) film. A high COF is imperative for stacking big bags on to the pallets. Bags made from ordinary matt finish OPP film cannot be stacked as they skid during palletization. Thus there has been a burgeoning demand from the global clientele for big bags in matt finish option.

Immaculately engineered big bags by the converting/packaging business vertical of Uflex are made by combining high COF, low Seal Initiation Temperature (SIT), high seal strength matt bi-axially OPP film and high performance woven polypropylene (WPP) fabric. This combination imparts high strength to the bags making them fit for heavy duty applications. The big bags made of this special film have qualified the critical drop tests as laid down by
the ASTM standards.

This low SIT high seal strength matt bi-axially OPP film engineered by the packaging film business vertical of Uflex offers a number of positives like high haze > 75%; low SIT – 108 degrees C; low gloss on matt side; excellent matt dispersion; good contact transparency and excellent homogeneity. The film also exhibits high hottack strength and imparts paper like matt look to the bag significantly enhancing its aesthetics.

This special film used for manufacturing big bags allows good stacking and sealing for pinch bottom. The pinch bottom is the process of step-cut sealing at the bottom of the bags through hot air purging. The pinch bottom option offers far superior sealing as compared to conventional methods like bottom fold taping and stitching. Above all, pinch bottom offers a leak-proof seal as opposed to ordinary sealing.

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