Unbleached Nonconiferous Chemical Wood Pulp, Soda or Sulfate (Non-Dissolving)

Eucalyptus is the dominant species in global trade due to its fast growth rate and favorable fiber properties. Acacia and mixed tropical hardwoods also appear in trade flows, particularly from Southeast Asian producers. Species identity matters to buyers because fiber morphology — cell wall thickness, fiber width — varies by species and affects sheet formation and strength.

Yes, blending is standard practice. Mills combine unbleached hardwood kraft for formation and surface smoothness with unbleached softwood kraft for tensile and tear strength. The optimal blend ratio depends on the target paper grade and basis weight, and suppliers are often asked to provide fiber characterization data to support blend optimization.