Unbleached Sack Kraft Paper 80 gsm
Machine-finished unbleached sack kraft paper in rolls, weighing 80 g/m², with at least 80% sulfate or soda wood fibers. It meets subheading 4804.21 specifications including a Mullen burst index of at least 3.7 kPa·m²/g and required stretch factors. Used primarily for manufacturing multi-wall paper sacks and bags for packaging dry goods.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If weighing over 115 g/m² with sufficient Mullen bursting strength
Heavier kraft paper qualifies as kraftliner under 4804.11, intended for linerboard rather than sacks.
If bleached
Bleaching the kraft paper changes it from unbleached sack kraft to bleached sack kraft under 4804.41.
If made mainly from recovered waste paper
Papers with ≥50% recycled content and specific burst index fall under fluting or testliner provisions in 4805.24.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify fiber composition via lab testing to confirm ≥80% sulfate/soda wood fibers and exact Mullen burst index to avoid reclassification
• Provide mill test certificates documenting weight (60-115 g/m²), stretch factors, and tear/tensile minima for customs compliance
• Ensure rolls are machine-finished and uncoated; common pitfall is misdeclaring bleached variants which shift to 4804.41
Related Products under HTS 4804.21.00.00
Unbleached Multiwall Sack Paper 90 gsm
High-strength unbleached sack kraft paper at 90 g/m² in rolls, with Mullen burst index >3.7 kPa·m²/g and stretch >4.5% CD. Contains ≥80% chemical sulfate wood fibers per subheading definition. Specifically designed for multi-ply paper bags used in food and agriculture packaging.
Industrial Cement Sack Paper 65 gsm
Lightweight unbleached sack kraft paper 65 g/m² rolls, compliant with burst index 3.7+ and stretch requirements. ≥80% chemical sulfate wood pulp. Engineered for cement bag plies requiring high burst resistance.
Fertilizer Bag Base Paper 75 gsm
Unbleached 75 g/m² sack kraft in rolls, meeting table (b) minima: 2.3 kN/m tensile, 830 mN tear at 70 gsm interpolated. Sulfate process fibers ≥80%. Base sheet for multiwall fertilizer bags.
Food Grade Sack Kraft Paper 85 gsm
Unbleached machine-finished sack kraft 85 g/m² rolls, ≥80% sulfate fibers, burst index and tear/tensile per specs. Suitable for food product sacks like flour and sugar.
Chemical Powder Sack Paper 95 gsm
95 g/m² unbleached sack kraft rolls with enhanced tensile 3.7 kN/m, for chemical powder packaging sacks. Full compliance with 80% sulfate fibers and physical tests.
Flour Mill Sack Paper 60 gsm Minimum
Minimum weight 60 g/m² unbleached sack kraft in rolls, burst index ≥3.7, stretch compliant. ≥80% wood sulfate fibers for flour milling sacks.