Cotton

Cotton

Definition

Cotton is a natural, cellulose-based fiber that is inherently pH neutral and highly stable, making it an ideal raw material for use in mat boards, papers, and other art materials designed for close contact with original artwork. Because of its purity and durability, cotton is favored in the production of archival and museum-quality substrates.

Properties

• pH Neutral: Naturally free from acids that cause deterioration in paper-based products.
• Durable: Cotton fibers are longer and stronger than typical wood pulp fibers, increasing longevity.
• Archival Quality: Resistant to yellowing, brittleness, and chemical degradation over time.
• Versatile: Can be processed into rag paper, mat boards, textiles, and conservation materials.

Uses in Framing & Art Conservation

• Mat boards: 100% cotton rag mats are considered the highest conservation standard for framing artwork.
• Fine art papers: Used for watercolor, printmaking, drawing, and digital fine art printing.
• Archival storage: Cotton-based papers and boards are used in folders, boxes, and protective enclosures.
• Textiles: Canvas, cotton fabric liners, and mounting hinges often utilize cotton fibers.

Conservation Considerations

Cotton-based products provide superior archival protection compared to wood pulp-based papers, which may contain lignin and acids. Framers and conservators often prefer rag mats or cotton rag paper for valuable or irreplaceable works of art. However, cost can be higher than standard paper-based materials.

Related Terms

• Paper
• Components
• Core
• Composition Moulding