Sulfite Process Dissolving Pulp for Film Manufacturing
Sulfite dissolving-grade woodpulp optimized for regenerated cellulose films like packaging wraps, adhering to 4702 legal notes on insolubility and ash. Essential input for thin, transparent film extrusion processes. Widely imported for flexible packaging sector.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for soda or sulfate dissolving pulp
Different chemical process within 4702 changes subheading from sulfite-specific.
If post-regeneration into cellulose film
Processed into carboxymethylcellulose or similar falls under Chapter 39 plastics.
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Import Tips & Compliance
• Attach detailed process flow charts proving sulfite method to distinguish from sulfate
• Pre-clear with binding ruling if pulp is pre-treated, avoiding on-entry disputes
• Monitor moisture content declarations, as excess can affect duty assessments
Related Products under HTS 4702.00.00.20
Sulfite Dissolving Wood Pulp for Viscose Rayon
High-purity sulfite chemical woodpulp with an insoluble fraction of at least 88% after caustic soda testing and ash content not exceeding 0.15%, designed for producing viscose rayon fibers. This pulp meets the dissolving grade criteria under heading 4702 due to its specific chemical properties for cellulose regeneration. It is primarily used in the textile industry for filament production.
High-Alpha Cellulose Sulfite Pulp for Cellophane
Sulfite woodpulp engineered for cellophane film production, featuring dissolving grade purity with low ash and high alpha-cellulose content for transparent regenerated films. Classified under 4702.00.00.20 for its sulfite process and meeting the legal definition of dissolving pulp. Essential for packaging and wrapping materials.
Sulfite Dissolving Pulp for Acetate Tow
Specialty sulfite chemical woodpulp for manufacturing cellulose acetate tow used in cigarette filters, with precise dissolving properties per heading 4702 definition. Its high purity ensures efficient acetylation process for fiber production. Key raw material in tobacco industry filtration.
Premium Sulfite Alpha Pulp for Textile Fibers
Premium-grade sulfite woodpulp with high alpha-cellulose for viscose staple fibers in textiles, classified as dissolving pulp under 4702.00.00.20 for its purity metrics. Used in apparel and nonwovens production.
Bleached Sulfite Dissolving Wood Pulp for Sponges
Bleached sulfite pulp meeting dissolving grade standards for regenerated cellulose sponge production, used in household cleaning products. Falls under HTS 4702.00.00.20 due to sulfite process and caustic insolubility metrics. Provides the porous structure base for sponge manufacturing.
Sulfite Dissolving Pulp for Pharmaceutical Cellulose
Ultra-pure sulfite dissolving woodpulp for pharmaceutical-grade cellulose derivatives like microcrystalline cellulose. Meets strict 4702.00.00.20 criteria for sulfite dissolving grades. Used in tablet binders and excipients.