Pinch Bottom Open Mouth Bag

The Pinch Bottom Open Mouth Bag is a popular industrial paper package designed to contain a variety of dry pourable products. The bag features seamless threading, minimal environmental impact, a secure seal, and prevents material caking. Open bags are loaded using a machine that dispenses material into the bag via a hopper or vertical filling nozzle. After the bag is filled, the pinch sealer activates and closes the bag by heating the air to activate the pre-coated adhesive on the bag opening. This folds the open end for a complete closure and pinches the fold until the adhesive sets. The bag can be supplied with either a stepped finish or a flat top.

Pinch Bottom Open Mouth (PBOM)

Features & Benefits

  • Leak-proof design capabilities
  • Excellent sealing properties
  • Multiple moisture barrier options
  • Foil and Mylar liners available for odor protection
  • Easy Palletizing
  • Matte or glossy finish
  • Fully customizable for desired application
  • Pre-Applied Adhesive for Heat seal closure
Pinch Bottom Open Mouth (PBOM)


Width :
180 mm – 750mm

Folding Depth :
30mm – 100 mm

Length :
500 mm – 1300 mm

Number of plies :
1 – 5

Colour printing :
Up to 8-colour printing available

Loading Capacity :
10-110lb Capacity

Base paper :
From 70gsm to 120gsm, greaseproof or not greaseproof, combined with different coated materials and/or films.

Heat Seals

The PBOM bag’s seal is created by folding and welding the innermost paper layer to the outermost paper layer of the bag. To activate the adhesive pre-applied within the opening of the bag, heat is applied to its exterior.


Building Materials
Building Materials
Building Materials
Chemicals & Minerals
Building Materials
Animal Nutrition
Building Materials
Building Materials
Coffee Industry
Dairy Industry
Dairy Industry
Dairy Industry
Food Industry
Dairy Industry
Animal & Pet Care
Pharmaceutical Industry
Pharmaceutical Industry

Four smart factories with top production lines
1 Billion pcs per year