High Stretch Sack Kraft Paper 85 g/m²
Sack kraft engineered for >4.5% cross-direction stretch, 85 g/m², ≥80% sulfate fibers with compliant tear/tensile. Prevents bag rupture in automated filling lines.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If strictly machine-finished variant
Finish type splits 4804.21 from other sack kraft in 4804.29.
If pre-formed into sack shapes
Assembled containers shift from paper to 4819 packing goods.
If >40% sulfite process with low ash
Sulfite wrapping paper specs override sulfate kraft.
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Import Tips & Compliance
• Document stretch testing directionally (CD/MD) as specs differentiate
• Avoid bulk packaging confusion with fluting rolls (4805)
• Country-of-origin fiber sourcing impacts; declare process accurately
Related Products under HTS 4804.29.00.00
Machine-Finished Sack Kraft Paper 80 g/m²
This uncoated sack kraft paper, made from at least 80% sulfate or soda process wood fibers, weighs 80 g/m² and meets the Mullen burst index and tensile strength specs for subheading 4804.21/29. It is supplied in rolls for manufacturing multi-wall paper sacks used in packaging industrial goods.
Sulfate Process Sack Paper 100 g/m² High Tensile
Uncoated kraft paper in rolls from chemical sulfate process fibers (≥80%), weighing 100 g/m² with Mullen burst index ≥3.7 kPa·m²/g and tear/tensile strengths per table for 100 g/m². Designed for durable cement and chemical sacks.
Unbleached Soda Process Kraft Sack Paper 70 g/m²
Other sack kraft paper from soda process wood fibers (≥80% total content), 70 g/m² in rolls, meeting minimum tensile (7.2 kN/m total) and tear (1790 mN CD) per specs. Used for grocery and feed bags.
Heavy Sack Kraft Paper 115 g/m² Mullen Compliant
Borderline sack kraft paper at max 115 g/m², ≥80% sulfate fibers, with 12.3 kN/m tensile and 3060 mN tear MD+CD per table specs. Ideal for heavy-duty flour and mineral sacks in roll form.
Industrial Grade Sack Kraft Paper 90 g/m²
Uncoated kraft paper for industrial sacks, 90 g/m² from sulfate process (≥80% fibers), satisfying interpolated burst index >3.7 kPa·m²/g and stretch factors. Supplied in large rolls for bag converters.
Chemical Pulp Sack Paper 60 g/m² Minimum Spec
Lightest sack kraft variant at 60 g/m², ≥80% chemical sulfate/soda fibers, exactly meeting 1.9 kN/m tensile and 1510 mN CD tear minima. For lightweight consumer product bags.