Mintech Process (OPC) Private Limited, Consultancy & Engineering
Stacked kraft multiwall paper sacks in a warehouse
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Paper Sacks

Multiwall kraft sacks specified around what's going inside them.

Carbon black needs a grammage that stops the bag from puffing and seeping under its own fines. Tea needs an aluminium-foil laminate barrier to keep out moisture and hold its aroma. A fertiliser sack needs a different seam entirely from a sack of flour. We build the sack to the product, using selected papers, films, foils, coatings and laminations.

Construction types

Valved
Self-sealing fill valve, fast filling, minimal dust escape
Open-mouth
Filled then sewn or pasted shut, flexible for varied fill weights
Pinch bottom
Machine-folded and glued base, suited to high-speed automated filling lines
Sewn
Stitched closure, strong seam for heavier or coarser contents
Reinforced
Added ply or scrim layer, for sharp, abrasive or dense material
Kraft and white multiwall paper sacks, standing empty and sealed

Base paper

Kraft plies for strength and puncture resistance

Barrier layer

Polyethylene film or aluminium foil for moisture and aroma control

Print & finish

Flexographic branding on the outer ply, to your specification

What we pack

Industrial & chemical

Carbon black, cement, rubber chemicals, pigments, bitumen, wax, polyester chips, ammonium nitrate, calcium chloride, soda ash, caustic soda

Food

Flour, rice, sugar, baking powder, corn meal, salt, pet food

Agricultural

Fertilisers, seeds, pesticides, herbicides, animal feeds

Spec a sack for your product

Tell us what's going in it and how it travels.