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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for liner applications over 115 g/m²
Kraftliner specs apply to heavier paper used in corrugated board liners.
If semichemical fluting with hardwood fibers
Different pulping process (mech+chem hardwood) and CMT crush test qualify for fluting paper.
If converted into filters or bobbins
Fabrics of paper or converted forms fall outside base paper classifications.
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Import Tips & Compliance
• Conduct pre-shipment testing for burst index and direction-specific stretch to match interpolated table values
• Document production process to prove sulfate/soda fiber dominance; blends under 80% risk reclassification
• Beware of customs valuing based on end-use sacks—classify as paper, not finished articles under 4819
Related Products under HTS 4804.21.00.00
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.
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.