Papermaking potential of pulps from bast, hurd and stubble of hemp; separately and blended with pine pulp


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Parlak K., Ertürk A., Atik C.

CELLULOSE, vol.1, no.1, pp.1-15, 2026 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 1 Issue: 1
  • Publication Date: 2026
  • Doi Number: 10.1007/s10570-026-06935-2
  • Journal Name: CELLULOSE
  • Journal Indexes: EBSCO Legal Collection, Scopus, Science Citation Index Expanded (SCI-EXPANDED), CAS – Chemical Abstracts Services
  • Page Numbers: pp.1-15
  • Open Archive Collection: AVESIS Open Access Collection
  • Istanbul University-Cerrahpasa Affiliated: Yes

Abstract

Hemp (Cannabis sativa L.) is widely cultivated for seed oil and fiber; however, significant portions of the plant, particularly stubble and roots, remain underutilized in the field. To address this inefficiency and explore sustainable alternatives to wood-based pulp, this study aimed to evaluate the potential of hemp stubble including stems, roots, and hurd fibers as a raw material for papermaking. Chemical composition analyses were conducted on bast and hurd fibers from different parts of the plant to assess their suitability for pulping. Distinct differences in cellulose, hemicellulose, and lignin content were identified, supporting the need for separate cooking of bast and hurd fibers, while stubble and roots were treated as whole due to their complex anatomical structure. Pulping trials showed that bast fibers produce high alpha-cellulose content and favorable optical properties, making them suitable for high-quality paper applications. Hurd fibers, due to their higher hemicellulose content, were found to be well-suited for blending with softwood kraft or recycled fibers in packaging and corrugated paper products. These results demonstrate the technical feasibility of using hemp stubble and roots in paper production. In addition to reducing agricultural waste, the use of hemp pulp supports sustainable development goals by promoting renewable raw materials and reducing dependence on wood fibers. The versatility of hemp fibers across different paper grades highlights their potential to contribute to a more circular and environmentally responsible pulp and paper industry.